Updated gitignore

This commit introduces a complete systemd user service setup for
remote-touchpad, eliminating the need for users to manually manage
the binary process. Key additions:

- New rts CLI wrapper script providing a user-friendly interface
  for service management without requiring root access
- Systemd service file for proper background operation with
  restart policies and dependency management
- Service management commands: install, start, stop, status,
  restart, and uninstall
- URL extraction and QR code generation via the url command
- Service log viewing via the log command

The installation process now:
1. Verifies Go is installed
2. Builds the remote-touchpad binary with appropriate tags
3. Installs service files to ~/.config/systemd/user/
4. Installs the binary to ~/.local/bin/
5. Enables and starts the service automatically

The README has been updated with comprehensive installation
instructions for the new user service approach.

.github/workflows/test.yaml

@@ -0,0 +1,43 @@
+name: Test
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        os: [linux]
+        tags: [[], ['null'], [portal], [uinput], [x11],
+               ['null', portal, uinput, x11]]
+        include:
+          - os: windows
+            tags: []
+          - os: windows
+            tags: ['null']
+    env:
+      GOOS: ${{ matrix.os }}
+      GOFLAGS: -tags=${{ join(matrix.tags, ',') }}
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-go@v4
+        with:
+          go-version: stable
+          check-latest: true
+      - run: sudo apt install libxrandr-dev libxtst-dev libxt-dev
+        if: ${{ contains(matrix.tags, 'x11') }}
+
+      - name: Go Format
+        run: gofmt -s -w . && git diff --exit-code
+
+      - name: Go Mod Tidy
+        run: go mod tidy && git diff --exit-code
+
+      - name: Go Vet
+        run: go vet ./...
+
+      - name: Go Build
+        run: go build ./...
+
+      - name: Go Test (with data race detection)
+        run: go test -race ./...
+        if: ${{ matrix.os == 'linux' }}

.gitignore

@@ -0,0 +1,11 @@
+# Binaries
+remote-touchpad
+
+# Systemd service state
+.remote-touchpad.service.state
+
+# Logs and run files
+.rts-log
+
+# Environment files
+.env

CHANGELOG.md

@@ -1,25 +1,220 @@
 # Changelog
 
+## 1.5.4 (2026-08-02)
+
+* Improve X11 keyboard input
+* Update dependencies
+
+## 1.5.3 (2025-12-24)
+
+* Update dependencies
+
+## 1.5.2 (2025-10-12)
+
+* Update dependencies
+
+## 1.5.0 (2025-03-18)
+
+* Add restore token support for the remote desktop portal
+* Update dependencies
+
+## 1.4.8 (2024-09-01)
+
+* Update dependencies
+
+## 1.4.7 (2024-08-30)
+
+* Update dependencies
+
+## 1.4.6 (2024-02-06)
+
+* Prevent incorrect MIME types
+
+## 1.4.5 (2024-01-31)
+
+* Keep text input open after sending
+* Workaround for virtual keyboard covering buttons (Chromium & iOS)
+* Enable hardware keyboard input in mouse mode
+
+## 1.4.4 (2024-01-23)
+
+* Fix Xwayland detection on newer servers
+* Fix support for the KDE remote desktop portal
+* Set correct minimum version for Go
+* Update dependencies
+
+## 1.4.3 (2023-10-03)
+
+* Update dependencies
+
+## 1.4.2 (2023-05-20)
+
+* Fix Windows support
+
+## 1.4.1 (2023-05-11)
+
+* uinput: Fix vertical scroll direction
+* Update dependencies
+
+## 1.4.0 (2023-04-25)
+
+* Add feedback to buttons
+* Add numeric keypad
+* Prevent touch triggering mouse mode
+
+## 1.3.0 (2023-03-03)
+
+* Initial support for uinput
+* Update dependencies
+
+## 1.2.3 (2022-12-29)
+
+* Improve XWayland detection
+* Update dependencies
+* Flatpak: Add Wayland socket to disable X11 socket
+
+## 1.2.2 (2022-09-23)
+
+* Update dependencies
+* Fix race in RemoteDesktop portal controller
+
+## 1.2.1 (2022-06-20)
+
+* Update dependencies
+
+## 1.2.0 (2022-02-26)
+
+* Add command-line options for move and scroll speed
+* Add hardware mouse support
+* Limit update rate
+* Windows: Reverse vertical scroll direction
+* Show error message if compiled without controller
+* Don't show disabled controllers in "unsupported platform" error message
+* Switch from go-bindata-assetfs to go:embed
+
+## 1.1.0 (2022-01-28)
+
+* Add more shortcut keys (Arrows, Delete, Enter, …)
+* Add basic support for physical keyboard
+* Allow fullscreen on keys page
+* Enable touchpad on keys page
+* Retain keyboard text when reloading website
+* Improve compatibility with old browsers
+* Write URL and QR code to stdout
+* Ignore unparseable IP
+* Remove trailing new line from QR code
+
+## 1.0.5 (2022-01-07)
+
+* Use relative URL for websocket
+* Update dependencies
+
+## 1.0.4 (2021-11-06)
+
+* Disable browser touch gestures
+* Update dependencies
+
+## 1.0.3 (2021-09-18)
+
+* Update dependencies
+
+## 1.0.2 (2021-06-05)
+
+* New logo
+* Update dependencies
+
+## 1.0.1 (2020-09-13)
+
+* Update dependencies
+
+## 1.0.0 (2020-08-26)
+
+* Add super and browser back and forward keys
+* Reduce minimum size of textarea
+* Small UI improvements
+* Remove obsolete command line arguments
+
+## 0.0.18 (2020-05-16)
+
+* Fix error messages for TLS certificate and private key files
+
+## 0.0.17 (2020-02-20)
+
+* Minor HTML improvements
+
+## 0.0.16 (2020-02-17)
+
+* Fix textarea on WebKit
+
+## 0.0.15 (2019-11-03)
+
+* Prefer IPv4 addresses
+
+## 0.0.14 (2019-10-28)
+
+* Handle quirks of browser touch events
+* Hide navigation bar in fullscreen mode
+* Set terminal title
+* Flatpak: Update dependencies
+
+## 0.0.13 (2019-05-04)
+
+* Flatpak: Update dependencies
+* AppStream: Fix release descriptions
+
+## 0.0.12 (2018-12-08)
+
+* fix the browser Forward button
+
+## 0.0.11 (2018-10-20)
+
+* rename plugin to backend
+* update flatpak
+
+## 0.0.10 (2018-10-01)
+
+* avoid race condition when typing on X11
+
+## 0.0.9 (2018-09-29)
+
+* add multimedia keys
+
+## 0.0.8 (2018-09-07)
+
+* enable pointer movement after timeout
+
+## 0.0.7 (2018-09-04)
+
+* use custom font for icons
+
+## 0.0.6 (2018-08-23)
+
+* use colors in terminal for QR qode
+* remove ``-invert`` command line argument
+* mitigate race condition when typing text on X11
+* improve KeySyms used for text on X11 and Flatpak's RemoteDesktop portal
+* normalize line endings
+
 ## 0.0.5 (2018-07-31)
 
-  * remove mouse polling interval
+* remove mouse polling interval
-  * add support for "pixel-perfect" scrolling
+* add support for "pixel-perfect" scrolling
-  * add experimental support for Flatpak's RemoteDesktop portal
+* add experimental support for Flatpak's RemoteDesktop portal
-  * X11 plugin: check session type
+* X11 plugin: check session type
-  * improve error logging
+* improve error logging
 
 ## 0.0.4 (2018-07-22)
 
-  * add setting for mouse polling interval
+* add setting for mouse polling interval
 
 ## 0.0.3 (2018-06-26)
 
-  * fix websocket with https
+* fix websocket with https
 
 ## 0.0.2 (2018-06-25)
 
-  * add reload button to disconnected-page
+* add reload button to disconnected-page
 
 ## 0.0.1 (2018-06-23)
 
-initial release
+initial release

README.md

@@ -1,14 +1,56 @@
 # Remote Touchpad
 
-Control mouse and keyboard from the webbrowser of a smartphone (or any other device with a touchscreen).
+Control mouse and keyboard from the webbrowser of a smartphone
+(or any other device with a touchscreen).
 To take control open the displayed URL or scan the QR code.
 
-Supports Flatpak's RemoteDesktop portal (experimental), Windows and X11.
+Supports Flatpak's RemoteDesktop portal (for Wayland), Windows and X11.
 
 ## Installation
 
-  * [Flatpak](https://flathub.org/apps/details/com.github.unrud.RemoteTouchpad)
+* [Flatpak](https://flathub.org/apps/details/com.github.unrud.RemoteTouchpad)
-  * [Windows](https://github.com/Unrud/remote-touchpad/releases/latest)
+* [Snap](https://snapcraft.io/remote-touchpad)
+* [Windows](https://github.com/Unrud/remote-touchpad/releases/latest)
+* Golang:
+  * Portal & uinput & X11:
+
+    ```sh
+    go install -tags portal,uinput,x11 github.com/unrud/remote-touchpad@latest
+    ```
+  * Windows:
+
+    ```sh
+    go install github.com/unrud/remote-touchpad@latest
+    ```
+
+## Linux User Service Installation
+
+To install remote-touchpad as a user-specific systemd service (no root access required):
+
+1. Clone the repository and navigate to the project directory:
+
+   ```sh
+   git clone https://github.com/Unrud/remote-touchpad.git
+   cd remote-touchpad
+   ```
+
+2. Install the service using the provided wrapper script (no sudo required):
+
+   ```sh
+   ./rts install
+   ```
+
+3. Access the service:
+
+   * View service status: `./rts status`
+   * Get URL: `./rts url`
+   * View logs: `./rts log`
+   * Stop service: `./rts stop`
+   * Start service: `./rts start`
+   * Restart service: `./rts restart`
+   * Uninstall: `./rts uninstall`
+
+The service will run in the background and maintain a persistent connection with URL and QR code accessible via the `url` command.
 
 ## Screenshots
 
@@ -17,3 +59,5 @@ Supports Flatpak's RemoteDesktop portal (experimental), Windows and X11.
 ![screenshot 2](https://raw.githubusercontent.com/Unrud/remote-touchpad/master/screenshots/2.png)
 
 ![screenshot 3](https://raw.githubusercontent.com/Unrud/remote-touchpad/master/screenshots/3.png)
+
+![screenshot 4](https://raw.githubusercontent.com/Unrud/remote-touchpad/master/screenshots/4.png)

bindata.go

@@ -1,3 +0,0 @@
-package main
-
-//go:generate go-bindata-assetfs -mode 0664 -modtime 1 -o ./bindata.generated.go webdata/...

desktop/com.github.unrud.RemoteTouchpad.desktop

@@ -5,5 +5,5 @@ Name=Remote Touchpad
 Comment=Control mouse and keyboard from a smartphone
 Terminal=true
 Exec=remote-touchpad-wait-on-error
-Icon=remote-touchpad
+Icon=com.github.unrud.RemoteTouchpad
 Categories=Network;RemoteAccess;ConsoleOnly;

desktop/com.github.unrud.RemoteTouchpad.metainfo.xml

@@ -0,0 +1,389 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<component type="desktop-application">
+  <id>com.github.unrud.RemoteTouchpad</id>
+  <metadata_license>CC0-1.0</metadata_license>
+  <project_license>GPL-3.0-or-later</project_license>
+  <name>Remote Touchpad</name>
+  <summary>Control mouse and keyboard from a smartphone</summary>
+  <description>
+    <p>
+      Control mouse and keyboard from the webbrowser of a smartphone (or any other device with a touchscreen).
+      To take control open the displayed URL or scan the QR code.
+    </p>
+    <p>
+      Supports Flatpak&apos;s RemoteDesktop portal (for Wayland), Windows and X11.
+    </p>
+  </description>
+  <launchable type="desktop-id">com.github.unrud.RemoteTouchpad.desktop</launchable>
+  <url type="bugtracker">https://github.com/Unrud/remote-touchpad/issues</url>
+  <url type="homepage">https://github.com/Unrud/remote-touchpad</url>
+  <url type="vcs-browser">https://github.com/Unrud/remote-touchpad</url>
+  <developer_name translate="no">Unrud</developer_name>
+  <developer id="io.github.unrud">
+    <name translate="no">Unrud</name>
+  </developer>
+  <releases>
+    <release version="1.5.4" date="2026-08-02">
+      <description>
+        <ul>
+          <li>Improve X11 keyboard input</li>
+          <li>Update dependencies</li>
+        </ul>
+      </description>
+    </release>
+    <release version="1.5.3" date="2025-12-24">
+      <description>
+        <ul>
+          <li>Update dependencies</li>
+        </ul>
+      </description>
+    </release>
+    <release version="1.5.2" date="2025-10-12">
+      <description>
+        <ul>
+          <li>Update dependencies</li>
+        </ul>
+      </description>
+    </release>
+    <release version="1.5.0" date="2025-03-18">
+      <description>
+        <ul>
+          <li>Add restore token support for the remote desktop portal</li>
+          <li>Update dependencies</li>
+        </ul>
+      </description>
+    </release>
+    <release version="1.4.8" date="2024-09-01">
+      <description>
+        <ul>
+          <li>Update dependencies</li>
+        </ul>
+      </description>
+    </release>
+    <release version="1.4.7" date="2024-08-30">
+      <description>
+        <ul>
+          <li>Update dependencies</li>
+        </ul>
+      </description>
+    </release>
+    <release version="1.4.6" date="2024-02-06">
+      <description>
+        <ul>
+          <li>Prevent incorrect MIME types</li>
+        </ul>
+      </description>
+    </release>
+    <release version="1.4.5" date="2024-01-31">
+      <description>
+        <ul>
+          <li>Keep text input open after sending</li>
+          <li>Workaround for virtual keyboard covering buttons (Chromium &amp; iOS)</li>
+          <li>Enable hardware keyboard input in mouse mode</li>
+        </ul>
+      </description>
+    </release>
+    <release version="1.4.4" date="2024-01-23">
+      <description>
+        <ul>
+          <li>Fix Xwayland detection on newer servers</li>
+          <li>Fix support for the KDE remote desktop portal</li>
+          <li>Set correct minimum version for Go</li>
+          <li>Update dependencies</li>
+        </ul>
+      </description>
+    </release>
+    <release version="1.4.3" date="2023-10-03">
+      <description>
+        <ul>
+          <li>Update dependencies</li>
+        </ul>
+      </description>
+    </release>
+    <release version="1.4.2" date="2023-05-20">
+      <description>
+        <ul>
+          <li>Fix Windows support</li>
+        </ul>
+      </description>
+    </release>
+    <release version="1.4.1" date="2023-05-11">
+      <description>
+        <ul>
+          <li>uinput: Fix vertical scroll direction</li>
+          <li>Update dependencies</li>
+        </ul>
+      </description>
+    </release>
+    <release version="1.4.0" date="2023-04-25">
+      <description>
+        <ul>
+          <li>Add feedback to buttons</li>
+          <li>Add numeric keypad</li>
+          <li>Prevent touch triggering mouse mode</li>
+          <li>Update dependencies</li>
+        </ul>
+      </description>
+    </release>
+    <release version="1.3.0" date="2023-03-03">
+      <description>
+        <ul>
+          <li>Initial support for uinput</li>
+          <li>Update dependencies</li>
+        </ul>
+      </description>
+    </release>
+    <release version="1.2.3" date="2022-12-29">
+      <description>
+        <ul>
+          <li>Improve XWayland detection</li>
+          <li>Update dependencies</li>
+          <li>Flatpak: Add Wayland socket to disable X11 socket</li>
+        </ul>
+      </description>
+    </release>
+    <release version="1.2.2" date="2022-09-23">
+      <description>
+        <ul>
+          <li>Update dependencies</li>
+          <li>Fix race in RemoteDesktop portal controller</li>
+        </ul>
+      </description>
+    </release>
+    <release version="1.2.1" date="2022-06-20">
+      <description>
+        <ul>
+          <li>Update dependencies</li>
+        </ul>
+      </description>
+    </release>
+    <release version="1.2.0" date="2022-02-26">
+      <description>
+        <ul>
+          <li>Add command-line options for move and scroll speed</li>
+          <li>Add hardware mouse support</li>
+          <li>Limit update rate</li>
+          <li>Windows: Reverse vertical scroll direction</li>
+          <li>Show error message if compiled without controller</li>
+          <li>Don't show disabled controllers in "unsupported platform" error message</li>
+          <li>Switch from go-bindata-assetfs to go:embed</li>
+        </ul>
+      </description>
+    </release>
+    <release version="1.1.0" date="2022-01-28">
+      <description>
+        <ul>
+          <li>Add more shortcut keys (Arrows, Delete, Enter, …)</li>
+          <li>Add basic support for physical keyboard</li>
+          <li>Allow fullscreen on keys page</li>
+          <li>Enable touchpad on keys page</li>
+          <li>Retain keyboard text when reloading website</li>
+          <li>Improve compatibility with old browsers</li>
+          <li>Write URL and QR code to stdout</li>
+          <li>Ignore unparseable IP</li>
+          <li>Remove trailing new line from QR code</li>
+        </ul>
+      </description>
+    </release>
+    <release version="1.0.5" date="2022-01-07">
+      <description>
+        <ul>
+          <li>Use relative URL for websocket</li>
+          <li>Update dependencies</li>
+        </ul>
+      </description>
+    </release>
+    <release version="1.0.4" date="2021-11-06">
+      <description>
+        <ul>
+          <li>Disable browser touch gestures</li>
+          <li>Update dependencies</li>
+        </ul>
+      </description>
+    </release>
+    <release version="1.0.3" date="2021-09-18">
+      <description>
+        <ul>
+          <li>Update dependencies</li>
+        </ul>
+      </description>
+    </release>
+    <release version="1.0.2" date="2021-06-05">
+      <description>
+        <ul>
+          <li>New logo</li>
+          <li>Update dependencies</li>
+        </ul>
+      </description>
+    </release>
+    <release version="1.0.1" date="2020-09-13">
+      <description>
+        <ul>
+          <li>Update dependencies</li>
+        </ul>
+      </description>
+    </release>
+    <release version="1.0.0" date="2020-08-26">
+      <description>
+        <ul>
+          <li>Add super and browser back and forward keys</li>
+          <li>Reduce minimum size of textarea</li>
+          <li>Small UI improvements</li>
+          <li>Remove obsolete command line arguments</li>
+        </ul>
+      </description>
+    </release>
+    <release version="0.0.18" date="2020-05-16">
+      <description>
+        <ul>
+          <li>Fix error messages for TLS certificate and private key files</li>
+        </ul>
+      </description>
+    </release>
+    <release version="0.0.17" date="2020-02-20">
+      <description>
+        <ul>
+          <li>Minor HTML improvements</li>
+        </ul>
+      </description>
+    </release>
+    <release version="0.0.16" date="2020-02-17">
+      <description>
+        <ul>
+          <li>Fix textarea on WebKit</li>
+        </ul>
+      </description>
+    </release>
+    <release version="0.0.15" date="2019-11-03">
+      <description>
+        <ul>
+          <li>Prefer IPv4 addresses</li>
+        </ul>
+      </description>
+    </release>
+    <release version="0.0.14" date="2019-10-28">
+      <description>
+        <ul>
+          <li>Handle quirks of browser touch events</li>
+          <li>Hide navigation bar in fullscreen mode</li>
+          <li>Set terminal title</li>
+          <li>Flatpak: Update dependencies</li>
+        </ul>
+      </description>
+    </release>
+    <release version="0.0.13" date="2019-05-04">
+      <description>
+        <ul>
+          <li>Flatpak: Update dependencies</li>
+          <li>AppStream: Fix release descriptions</li>
+        </ul>
+      </description>
+    </release>
+    <release version="0.0.12" date="2018-12-08">
+      <description>
+        <ul>
+          <li>fix the browser Forward button</li>
+        </ul>
+      </description>
+    </release>
+    <release version="0.0.11" date="2018-10-20">
+      <description>
+        <ul>
+          <li>rename plugin to backend</li>
+          <li>update flatpak</li>
+        </ul>
+      </description>
+    </release>
+    <release version="0.0.10" date="2018-10-01">
+      <description>
+        <ul>
+          <li>avoid race condition when typing on X11</li>
+        </ul>
+      </description>
+    </release>
+    <release version="0.0.9" date="2018-09-29">
+      <description>
+        <ul>
+          <li>add multimedia keys</li>
+        </ul>
+      </description>
+    </release>
+    <release version="0.0.8" date="2018-09-07">
+      <description>
+        <ul>
+          <li>enable pointer movement after timeout</li>
+        </ul>
+      </description>
+    </release>
+    <release version="0.0.7" date="2018-09-04">
+      <description>
+        <ul>
+          <li>use custom font for icons</li>
+        </ul>
+      </description>
+    </release>
+    <release version="0.0.6" date="2018-08-23">
+      <description>
+        <ul>
+          <li>use colors in terminal for QR qode</li>
+          <li>remove -invert command line argument</li>
+          <li>mitigate race condition when typing text on X11</li>
+          <li>improve KeySyms used for text on X11 and Flatpak&apos;s RemoteDesktop portal</li>
+          <li>normalize line endings</li>
+        </ul>
+      </description>
+    </release>
+    <release version="0.0.5" date="2018-07-31">
+      <description>
+        <ul>
+          <li>remove mouse polling interval</li>
+          <li>add support for &quot;pixel-perfect&quot; scrolling</li>
+          <li>add experimental support for Flatpak&apos;s RemoteDesktop portal</li>
+          <li>X11 plugin: check session type</li>
+          <li>improve error logging</li>
+        </ul>
+      </description>
+    </release>
+    <release version="0.0.4" date="2018-07-22">
+      <description>
+        <ul>
+          <li>add setting for mouse polling interval</li>
+        </ul>
+      </description>
+    </release>
+    <release version="0.0.3" date="2018-06-26">
+      <description>
+        <ul>
+          <li>fix websocket with https</li>
+        </ul>
+      </description>
+    </release>
+    <release version="0.0.2" date="2018-06-25">
+      <description>
+        <ul>
+          <li>add reload button to disconnected-page</li>
+        </ul>
+      </description>
+    </release>
+    <release version="0.0.1" date="2018-06-23">
+      <description>
+        <p>initial release</p>
+      </description>
+    </release>
+  </releases>
+  <screenshots>
+    <screenshot type="default">
+      <image>https://raw.githubusercontent.com/Unrud/remote-touchpad/v1.5.4/screenshots/1.png</image>
+    </screenshot>
+    <screenshot>
+      <image>https://raw.githubusercontent.com/Unrud/remote-touchpad/v1.5.4/screenshots/2.png</image>
+    </screenshot>
+    <screenshot>
+      <image>https://raw.githubusercontent.com/Unrud/remote-touchpad/v1.5.4/screenshots/3.png</image>
+    </screenshot>
+    <screenshot>
+      <image>https://raw.githubusercontent.com/Unrud/remote-touchpad/v1.5.4/screenshots/4.png</image>
+    </screenshot>
+  </screenshots>
+  <content_rating type="oars-1.1"/>
+</component>

desktop/com.github.unrud.RemoteTouchpad.svg

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg width="128" height="128" version="1.1" viewBox="0 0 33.867 33.867" xmlns="http://www.w3.org/2000/svg">
+ <path d="m31.75 22.754v1.0583c0 1.1726-0.94403 2.1167-2.1167 2.1167h-25.4c-1.1726 0-2.1167-0.94403-2.1167-2.1167v-1.0583z" fill="#cacccc"/>
+ <rect x="2.1167" y="8.9958" width="29.633" height="15.875" rx="2.1167" ry="2.1167" fill="#eaeced"/>
+ <rect x="29.898" y="15.346" width=".52917" height="3.175" rx=".26458" ry=".26458" fill="#cacccc"/>
+ <rect x="5.2917" y="10.054" width="23.283" height="13.758" fill="#5e5c64"/>
+ <rect x="3.175" y="13.758" width="1.0583" height="6.35" rx=".52917" ry=".5919" fill="#cacccc"/>
+ <path d="m9.0777 25.71c-0.00214 0.23918 0.060837 0.44999 0.19063 0.57978l4.5382 4.5377 0.32814 0.32815c0.38896 0.3767 0.90809 0.58989 1.4506 0.59169h7.1107c1.1579-2.3e-5 2.0965-0.93865 2.0965-2.0965v-1.059h-10l-3.9818-3.9402h-1.7328z" fill="#dea560"/>
+ <circle cx="15.316" cy="16.593" r="3.175" fill="#62a0ea" fill-opacity=".5"/>
+ <path d="m15.316 15.469c-0.62555 5e-6 -1.1328 0.52585-1.1327 0.97927v9.1845c-6.2e-5 0.14239-0.11548 0.2578-0.25786 0.25786-0.0683-2.46e-4 -0.13371-0.02756-0.1819-0.07596l-5.3e-4 5.29e-4 -2.529-2.529c-0.32061-0.32062-1.1278-0.25715-1.665 0.28009-0.53724 0.53725-0.60122 1.3449-0.2806 1.6655l4.5382 4.5377 0.32814 0.32815c0.38896 0.3767 0.90809 0.58989 1.4506 0.59169h7.1107c1.1579-2.4e-5 2.0965-0.93865 2.0965-2.0965v-5.9392c4e-6 -0.45341-0.5072-0.97926-1.1327-0.97927-0.62555 1.3e-5 -1.1328 0.52585-1.1327 0.97927v0.50385c-5.8e-5 0.14239-0.11547 0.25781-0.25786 0.25787-0.14239-5.9e-5 -0.25781-0.11548-0.25786-0.25787v-1.603c2e-6 -0.45341-0.50721-0.97926-1.1327-0.97927-0.62554 1e-5 -1.1328 0.52586-1.1327 0.97927v0.78651c-5.9e-5 0.14239-0.11548 0.25781-0.25787 0.25786-0.14239-5.8e-5 -0.25781-0.11548-0.25786-0.25786v-1.4159c4e-6 -0.45341-0.50721-0.97926-1.1327-0.97927-0.62554 6e-6 -1.1328 0.52586-1.1327 0.97927v1.4159c-5.9e-5 0.14239-0.11547 0.25781-0.25786 0.25786-0.14239-5.8e-5 -0.25781-0.11548-0.25786-0.25786v-5.8927c5e-6 -0.45341-0.5072-0.97926-1.1327-0.97927z" fill="#ffbe6f"/>
+</svg>

desktop/remote-touchpad.appdata.xml

@@ -1,61 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<component type="desktop">
-  <id>remote-touchpad.desktop</id>
-  <metadata_license>CC0-1.0</metadata_license>
-  <project_license>GPL-3.0-or-later</project_license>
-  <name>Remote Touchpad</name>
-  <summary>Control mouse and keyboard from a smartphone</summary>
-  <description>
-    <p>
-      Control mouse and keyboard from the webbrowser of a smartphone (or any other device with a touchscreen).
-      To take control open the displayed URL or scan the QR code.
-    </p>
-    <p>
-      Supports Flatpak&apos;s RemoteDesktop portal (experimental), Windows and X11.
-    </p>
-  </description>
-  <url type="bugtracker">https://github.com/Unrud/remote-touchpad/issues</url>
-  <url type="homepage">https://github.com/Unrud/remote-touchpad</url>
-  <developer_name>Unrud</developer_name>
-  <releases>
-    <release version="0.0.5" date="2018-07-31">
-​      <ul>
-        <li>remove mouse polling interval</li>
-        <li>add support for &quot;pixel-perfect&quot; scrolling</li>
-        <li>add experimental support for Flatpak&apos;s RemoteDesktop portal</li>
-        <li>X11 plugin: check session type</li>
-        <li>improve error logging</li>
-      </ul>
-    </release>
-    <release version="0.0.4" date="2018-07-22">
-​      <ul>
-        <li>add setting for mouse polling interval</li>
-      </ul>
-    </release>
-    <release version="0.0.3" date="2018-06-26">
-​      <ul>
-        <li>fix websocket with https</li>
-      </ul>
-    </release>
-    <release version="0.0.2" date="2018-06-25">
-​      <ul>
-        <li>add reload button to disconnected-page</li>
-      </ul>
-    </release>
-    <release version="0.0.1" date="2018-06-23">
-​      <p>initial release</p>
-    </release>
-  </releases>
-  <screenshots>
-    <screenshot type="default">
-      <image>https://raw.githubusercontent.com/Unrud/remote-touchpad/0.0.5/screenshots/1.png</image>
-    </screenshot>
-    <screenshot>
-      <image>https://raw.githubusercontent.com/Unrud/remote-touchpad/0.0.5/screenshots/2.png</image>
-    </screenshot>
-    <screenshot>
-      <image>https://raw.githubusercontent.com/Unrud/remote-touchpad/0.0.5/screenshots/3.png</image>
-    </screenshot>
-  </screenshots>
-  <content_rating type="oars-1.1" />
-</component>

flatpak/com.github.unrud.RemoteTouchpad.json

@@ -1,66 +0,0 @@
-{
-    "app-id" : "com.github.unrud.RemoteTouchpad",
-    "runtime" : "org.freedesktop.Platform",
-    "runtime-version" : "1.6",
-    "sdk" : "org.freedesktop.Sdk",
-    "command" : "remote-touchpad",
-    "rename-appdata-file" : "remote-touchpad.appdata.xml",
-    "rename-desktop-file" : "remote-touchpad.desktop",
-    "rename-icon" : "remote-touchpad",
-    "sdk-extensions" : [
-        "org.freedesktop.Sdk.Extension.golang"
-    ],
-    "finish-args" : [
-        "--socket=x11",
-        "--share=network"
-    ],
-    "modules" : [
-        {
-            "name" : "remote-touchpad",
-            "sources" : [
-                {
-                    "type" : "git",
-                    "url" : "https://github.com/golang/net",
-                    "commit" : "afe8f62b1d6bbd81f31868121a50b06d8188e1f9",
-                    "dest" : "src/golang.org/x/net"
-                },
-                {
-                    "type" : "git",
-                    "url" : "https://github.com/skip2/go-qrcode",
-                    "commit" : "cf5f9fa2f0d847edb8e038db7ed975e239095e1a",
-                    "dest" : "src/github.com/skip2/go-qrcode"
-                },
-                {
-                    "type" : "git",
-                    "url" : "https://github.com/elazarl/go-bindata-assetfs",
-                    "commit" : "38087fe4dafb822e541b3f7955075cc1c30bd294",
-                    "dest" : "src/github.com/elazarl/go-bindata-assetfs"
-                },
-                {
-                    "type" : "git",
-                    "url" : "https://anonscm.debian.org/git/pkg-go/packages/golang-dbus.git",
-                    "commit" : "79d96b151df08809558c825f8a75188826e8e228",
-                    "dest" : "src/anonscm.debian.org/git/pkg-go/packages/golang-dbus.git"
-                },
-                {
-                    "type" : "git",
-                    "path" : "..",
-                    "branch" : "master",
-                    "dest" : "src/github.com/unrud/remote-touchpad"
-                }
-            ],
-            "buildsystem" : "simple",
-            "build-commands" : [
-                ". /usr/lib/sdk/golang/enable.sh; env GOPATH=\"$(pwd)\" go build -tags 'portal x11' github.com/unrud/remote-touchpad",
-                "install -Dm0755 -t /app/bin remote-touchpad",
-                "install -Dm0755 -t /app/bin src/github.com/unrud/remote-touchpad/desktop/remote-touchpad-wait-on-error",
-                "install -Dm0644 -t /app/share/appdata src/github.com/unrud/remote-touchpad/desktop/remote-touchpad.appdata.xml",
-                "install -Dm0644 -t /app/share/applications src/github.com/unrud/remote-touchpad/desktop/remote-touchpad.desktop",
-                "install -Dm0644 src/github.com/unrud/remote-touchpad/desktop/remote-touchpad_64.png /app/share/icons/hicolor/64x64/apps/remote-touchpad.png",
-                "install -Dm0644 src/github.com/unrud/remote-touchpad/desktop/remote-touchpad_128.png /app/share/icons/hicolor/128x128/apps/remote-touchpad.png",
-                "install -Dm0644 src/github.com/unrud/remote-touchpad/desktop/remote-touchpad_256.png /app/share/icons/hicolor/256x256/apps/remote-touchpad.png",
-                "install -Dm0644 src/github.com/unrud/remote-touchpad/desktop/remote-touchpad_512.png /app/share/icons/hicolor/512x512/apps/remote-touchpad.png"
-            ]
-        }
-    ]
-}

flatpak/com.github.unrud.RemoteTouchpad.yaml

@@ -0,0 +1,52 @@
+app-id: com.github.unrud.RemoteTouchpad
+runtime: org.freedesktop.Platform
+runtime-version: '25.08'
+sdk: org.freedesktop.Sdk
+command: remote-touchpad
+sdk-extensions:
+  - org.freedesktop.Sdk.Extension.golang
+finish-args:
+  - --socket=fallback-x11
+  - --socket=wayland
+  - --share=ipc # Required by Flathub linter
+  - --share=network
+modules:
+  - name: remote-touchpad
+    sources:
+      - type: git
+        path: ..
+      - type: git
+        url: https://github.com/godbus/dbus
+        tag: v5.2.2
+        commit: a8ac15ba63645f02ffd57f4b443203279ab40b30
+        dest: vendor/github.com/godbus/dbus/v5
+      - type: git
+        url: https://github.com/skip2/go-qrcode
+        commit: da1b6568686e89143e94f980a98bc2dbd5537f13
+        dest: vendor/github.com/skip2/go-qrcode
+      - type: git
+        url: https://github.com/golang/net
+        tag: v0.57.0
+        commit: b8f09f6f062ceb4531b7af4bd17a5c8fe9c4b2b5
+        dest: vendor/golang.org/x/net
+      - type: git
+        url: https://github.com/golang/sys
+        tag: v0.47.0
+        commit: 9e7e939dcafac07e8ab4cffa6e5fc74908413f00
+        dest: vendor/golang.org/x/sys
+      - type: file
+        path: modules.txt
+        dest: vendor
+    buildsystem: simple
+    build-commands:
+      - . /usr/lib/sdk/golang/enable.sh; go build -tags portal,x11
+      - install -Dm0755 -t /app/bin remote-touchpad
+      - install -Dm0755 -t /app/bin desktop/remote-touchpad-wait-on-error
+      - install -Dm0644 -t /app/share/metainfo desktop/com.github.unrud.RemoteTouchpad.metainfo.xml
+      - install -Dm0644 -t /app/share/applications desktop/com.github.unrud.RemoteTouchpad.desktop
+      - install -Dm0644 -t /app/share/icons/hicolor/scalable/apps desktop/com.github.unrud.RemoteTouchpad.svg
+      - |
+        for res in 16 32 48 64 128 256 512; do
+          rsvg-convert --height "${res}" --keep-aspect-ratio --format png --output com.github.unrud.RemoteTouchpad.png desktop/com.github.unrud.RemoteTouchpad.svg || exit 1
+          install -Dm0644 -t "/app/share/icons/hicolor/${res}x${res}/apps" com.github.unrud.RemoteTouchpad.png || exit 1
+        done

flatpak/modules.txt

@@ -0,0 +1,17 @@
+# github.com/bendahl/uinput v1.7.0
+## explicit; go 1.13
+github.com/bendahl/uinput
+# github.com/godbus/dbus/v5 v5.2.2
+## explicit; go 1.20
+github.com/godbus/dbus/v5
+# github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e
+## explicit; go 1.13
+github.com/skip2/go-qrcode
+github.com/skip2/go-qrcode/bitset
+github.com/skip2/go-qrcode/reedsolomon
+# golang.org/x/net v0.57.0
+## explicit; go 1.25.0
+golang.org/x/net/websocket
+# golang.org/x/sys v0.47.0
+## explicit; go 1.25.0
+golang.org/x/sys/unix

go.mod

@@ -0,0 +1,12 @@
+module github.com/unrud/remote-touchpad
+
+go 1.25.5
+
+require (
+	github.com/bendahl/uinput v1.7.0
+	github.com/godbus/dbus/v5 v5.2.2
+	github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e
+	golang.org/x/net v0.57.0
+)
+
+require golang.org/x/sys v0.47.0 // indirect

go.sum

@@ -0,0 +1,10 @@
+github.com/bendahl/uinput v1.7.0 h1:nA4fm8Wu8UYNOPykIZm66nkWEyvxzfmJ8YC02PM40jg=
+github.com/bendahl/uinput v1.7.0/go.mod h1:Np7w3DINc9wB83p12fTAM3DPPhFnAKP0WTXRqCQJ6Z8=
+github.com/godbus/dbus/v5 v5.2.2 h1:TUR3TgtSVDmjiXOgAAyaZbYmIeP3DPkld3jgKGV8mXQ=
+github.com/godbus/dbus/v5 v5.2.2/go.mod h1:3AAv2+hPq5rdnr5txxxRwiGjPXamgoIHgz9FPBfOp3c=
+github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e h1:MRM5ITcdelLK2j1vwZ3Je0FKVCfqOLp5zO6trqMLYs0=
+github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e/go.mod h1:XV66xRDqSt+GTGFMVlhk3ULuV0y9ZmzeVGR4mloJI3M=
+golang.org/x/net v0.57.0 h1:K5+3DljvIuDG9/Jv9rvyMywYNFCQ9RSUY6OOTTkT+tE=
+golang.org/x/net v0.57.0/go.mod h1:KpXc8iv+r3XplLAG/f7Jsf9RPszJzdR0f58q9vGOuEU=
+golang.org/x/sys v0.47.0 h1:o7XGOvZQCADBQQ4Y7VNq2dRWQR7JmOUW8Kxx4ZsNgWs=
+golang.org/x/sys v0.47.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=

host.go

@@ -1,9 +1,9 @@
 /*
- *    Copyright (c) 2018 Unrud<unrud@outlook.com>
+ *    Copyright (c) 2018-2019 Unrud <unrud@outlook.com>
  *
  *    This file is part of Remote-Touchpad.
  *
- *    Foobar is free software: you can redistribute it and/or modify
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
  *    it under the terms of the GNU General Public License as published by
  *    the Free Software Foundation, either version 3 of the License, or
  *    (at your option) any later version.
@@ -13,8 +13,8 @@
  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *    GNU General Public License for more details.
  *
- *   You should have received a copy of the GNU General Public License
+ *    You should have received a copy of the GNU General Public License
- *   along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 package main
@@ -22,11 +22,25 @@ package main
 import (
 	"fmt"
 	"net"
+	"sort"
 	"strings"
 )
 
-func FindDefaultHost() (host string) {
+const ipv4Rating int = +1
-	host = "localhost"
+
+func findDefaultHost() string {
+	type hostsValue struct {
+		prio int
+		host string
+	}
+	hosts := make([]hostsValue, 0)
+	hosts = append(hosts, hostsValue{0, "localhost"})
+	addIP := func(prio int, ip net.IP) {
+		if ip.To4() != nil {
+			prio += ipv4Rating
+		}
+		hosts = append(hosts, hostsValue{prio, ip.String()})
+	}
 	for _, publicIP := range []string{"2001:4860:4860::8888", "8.8.8.8"} {
 		addr := fmt.Sprintf("[%s]:80", publicIP)
 		conn, err := net.Dial("udp", addr)
@@ -34,42 +48,42 @@ func FindDefaultHost() (host string) {
 			continue
 		}
 		conn.Close()
-		host, _, err = net.SplitHostPort(conn.LocalAddr().String())
+		host, _, err := net.SplitHostPort(conn.LocalAddr().String())
 		if err != nil {
 			panic(err)
 		}
-		return
+		ip := net.ParseIP(host)
-	}
+		if ip != nil {
-	interfaces, err := net.Interfaces()
+			addIP(100, ip)
-	if err != nil {
+		}
-		return
 	}
+	interfaces, _ := net.Interfaces()
 	for _, inter := range interfaces {
-		if inter.Flags&net.FlagUp == 0 || inter.Flags&net.FlagLoopback != 0 {
+		if inter.Flags&net.FlagUp == 0 {
-			continue
-		}
-		addrs, err := inter.Addrs()
-		if err != nil {
 			continue
 		}
+		addrs, _ := inter.Addrs()
 	addrs:
 		for _, addr := range addrs {
 			ip, _, err := net.ParseCIDR(addr.String())
 			if err != nil {
+				panic(err)
+			}
+			if inter.Flags&net.FlagLoopback != 0 {
+				addIP(10, ip)
 				continue
 			}
-			if host == "localhost" {
-				host = ip.String()
-			}
 			for _, linkLocalPrefix := range []string{
-				"169.254.", "fe8", "fe9", "fea", "feb"} {
+				"169.254.", "fe8", "fe9", "fea", "feb",
+			} {
 				if strings.HasPrefix(ip.String(), linkLocalPrefix) {
+					addIP(20, ip)
 					continue addrs
 				}
 			}
-			return ip.String()
+			addIP(30, ip)
 		}
-
 	}
-	return
+	sort.Slice(hosts, func(i, j int) bool { return hosts[i].prio > hosts[j].prio })
+	return hosts[0].host
 }

icon-font/U+1F507 Speaker with Cancellation Stroke.svg

@@ -0,0 +1,121 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   id="svg964"
+   version="1.1"
+   viewBox="0 0 264.58333 264.58334"
+   height="1000"
+   width="1000"
+   sodipodi:docname="U+1F507 Speaker with Cancellation Stroke.svg"
+   inkscape:version="0.92.3 (2405546, 2018-03-11)">
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1920"
+     inkscape:window-height="1016"
+     id="namedview8"
+     showgrid="false"
+     showguides="true"
+     inkscape:guide-bbox="true"
+     inkscape:zoom="0.51998147"
+     inkscape:cx="173.85039"
+     inkscape:cy="614.2482"
+     inkscape:window-x="0"
+     inkscape:window-y="27"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="layer1"
+     inkscape:snap-global="true">
+    <sodipodi:guide
+       position="0,52.916667"
+       orientation="0,1"
+       id="guide815"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="5.2916667,0"
+       orientation="1,0"
+       id="guide817"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="0,259.29167"
+       orientation="0,1"
+       id="guide819"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="259.29167,0"
+       orientation="1,0"
+       id="guide821"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="29.104167,0"
+       orientation="1,0"
+       id="guide823"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="235.47917,0"
+       orientation="1,0"
+       id="guide825"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="132.29167,161.39583"
+       orientation="0,1"
+       id="guide827"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="132.29167,161.39583"
+       orientation="1,0"
+       id="guide829"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+  </sodipodi:namedview>
+  <defs
+     id="defs958" />
+  <metadata
+     id="metadata961">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     transform="translate(0,-32.41665)"
+     id="layer1"
+     inkscape:groupmode="layer">
+    <path
+       style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-feature-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:30;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       d="M 484.74219 165.21094 C 481.46507 165.30684 478.30896 166.474 475.75781 168.5332 L 282.64453 324.57617 L 34.949219 324.57617 C 26.665288 324.577 19.95005 331.2922 19.949219 339.57617 L 19.949219 644.40039 C 19.95005 652.68432 26.665288 659.39956 34.949219 659.40039 L 262.81641 659.40039 L 475.75781 831.46484 C 485.56622 839.38586 500.17721 832.40823 500.18359 819.80078 L 500.18359 180.20508 C 500.18259 171.74797 493.19563 164.96209 484.74219 165.21094 z M 662.77734 316.65039 C 658.87578 316.70784 655.14976 318.28384 652.39062 321.04297 L 617.19531 356.24023 C 611.3367 362.09869 611.3367 371.59662 617.19531 377.45508 L 739.73438 500.00195 L 617.19531 622.54883 C 611.33954 628.40437 611.33588 637.89811 617.1875 643.75781 L 652.39062 678.96094 C 658.247 684.82162 667.74685 684.82528 673.60742 678.96875 L 796.1543 556.41602 L 918.69922 678.96875 C 924.55979 684.82528 934.05964 684.82162 939.91602 678.96094 L 975.11914 643.75781 C 980.97076 637.89811 980.96905 628.40437 975.11328 622.54883 L 852.57227 500.00195 L 975.11328 377.45508 C 980.97189 371.59662 980.97189 362.09869 975.11328 356.24023 L 939.91602 321.04297 C 934.05756 315.18436 924.55768 315.18436 918.69922 321.04297 L 796.1543 443.58984 L 673.60742 321.04297 C 670.73974 318.17529 666.8324 316.59049 662.77734 316.65039 z "
+       transform="matrix(0.26458333,0,0,0.26458333,0,32.41665)"
+       id="path828" />
+  </g>
+</svg>

icon-font/U+1F509 Speaker with One Sound Wave.svg

@@ -0,0 +1,121 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   id="svg964"
+   version="1.1"
+   viewBox="0 0 264.58333 264.58334"
+   height="1000"
+   width="1000"
+   sodipodi:docname="U+1F509 Speaker with One Sound Wave.svg.2018_09_27_20_14_27.0.svg"
+   inkscape:version="0.92.3 (2405546, 2018-03-11)">
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1920"
+     inkscape:window-height="1016"
+     id="namedview8"
+     showgrid="false"
+     showguides="true"
+     inkscape:guide-bbox="true"
+     inkscape:zoom="0.73536486"
+     inkscape:cx="732.0533"
+     inkscape:cy="512.86977"
+     inkscape:window-x="0"
+     inkscape:window-y="27"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="layer1"
+     inkscape:snap-global="true">
+    <sodipodi:guide
+       position="0,52.916667"
+       orientation="0,1"
+       id="guide815"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="5.2916667,0"
+       orientation="1,0"
+       id="guide817"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="0,259.29167"
+       orientation="0,1"
+       id="guide819"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="259.29167,0"
+       orientation="1,0"
+       id="guide821"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="29.104167,0"
+       orientation="1,0"
+       id="guide823"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="235.47917,0"
+       orientation="1,0"
+       id="guide825"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="132.29167,161.39583"
+       orientation="0,1"
+       id="guide827"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="132.29167,161.39583"
+       orientation="1,0"
+       id="guide829"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+  </sodipodi:namedview>
+  <defs
+     id="defs958" />
+  <metadata
+     id="metadata961">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     transform="translate(0,-32.41665)"
+     id="layer1"
+     inkscape:groupmode="layer">
+    <path
+       style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-feature-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:30;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       d="M 484.74219 165.21094 C 481.46507 165.30679 478.30896 166.474 475.75781 168.5332 L 282.64453 324.57617 L 34.949219 324.57617 C 26.665288 324.577 19.95005 331.2922 19.949219 339.57617 L 19.949219 644.40039 C 19.95005 652.68432 26.665288 659.39956 34.949219 659.40039 L 262.81641 659.40039 L 475.75781 831.46484 C 485.56622 839.38586 500.17721 832.40823 500.18359 819.80078 L 500.18359 180.20508 C 500.18223 171.74797 493.19563 164.96209 484.74219 165.21094 z M 596.02148 305.23047 C 594.17662 305.21535 592.34405 305.54205 590.61719 306.19141 L 520.87305 332.35156 C 513.10865 335.26429 509.18062 343.92497 512.10352 351.68555 C 529.44066 397.74521 538.92969 447.67401 538.92969 499.94336 C 538.92969 547.59292 531.03301 593.28945 516.50391 635.89648 C 513.94392 643.40353 517.66997 651.60435 525.00781 654.61523 L 594.06445 682.95508 C 602.00112 686.21367 611.05039 682.16384 613.9082 674.07422 C 633.15681 619.5579 643.63477 560.92547 643.63477 499.94336 C 643.63477 434.88046 631.69314 372.49004 609.91406 314.92383 C 607.72481 309.13737 602.20797 305.28746 596.02148 305.23047 z "
+       transform="matrix(0.26458333,0,0,0.26458333,0,32.41665)"
+       id="path828" />
+  </g>
+</svg>

icon-font/U+1F50A Speaker with Three Sound Waves.svg

@@ -0,0 +1,121 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   id="svg964"
+   version="1.1"
+   viewBox="0 0 264.58333 264.58334"
+   height="1000"
+   width="1000"
+   sodipodi:docname="U+1F50A Speaker with Three Sound Waves.svg"
+   inkscape:version="0.92.3 (2405546, 2018-03-11)">
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1920"
+     inkscape:window-height="1016"
+     id="namedview8"
+     showgrid="false"
+     showguides="true"
+     inkscape:guide-bbox="true"
+     inkscape:zoom="1.039963"
+     inkscape:cx="755.38558"
+     inkscape:cy="561.27698"
+     inkscape:window-x="0"
+     inkscape:window-y="27"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="layer1"
+     inkscape:snap-global="true">
+    <sodipodi:guide
+       position="0,52.916667"
+       orientation="0,1"
+       id="guide815"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="5.2916667,0"
+       orientation="1,0"
+       id="guide817"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="0,259.29167"
+       orientation="0,1"
+       id="guide819"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="259.29167,0"
+       orientation="1,0"
+       id="guide821"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="29.104167,0"
+       orientation="1,0"
+       id="guide823"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="235.47917,0"
+       orientation="1,0"
+       id="guide825"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="132.29167,161.39583"
+       orientation="0,1"
+       id="guide827"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="132.29167,161.39583"
+       orientation="1,0"
+       id="guide829"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+  </sodipodi:namedview>
+  <defs
+     id="defs958" />
+  <metadata
+     id="metadata961">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     transform="translate(0,-32.41665)"
+     id="layer1"
+     inkscape:groupmode="layer">
+    <path
+       style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-feature-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:30;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       d="M 484.74219 165.21094 C 481.46507 165.30679 478.30896 166.474 475.75781 168.5332 L 282.64453 324.57617 L 34.949219 324.57617 C 26.665288 324.577 19.95005 331.2922 19.949219 339.57617 L 19.949219 644.40039 C 19.95005 652.68432 26.665288 659.39956 34.949219 659.40039 L 262.81641 659.40039 L 475.75781 831.46484 C 485.56622 839.38586 500.17721 832.40823 500.18359 819.80078 L 500.18359 180.20508 C 500.18223 171.74797 493.19563 164.96209 484.74219 165.21094 z M 876.86523 199.69336 C 875.19506 199.73399 873.54347 200.05184 871.97852 200.63672 L 800.04883 227.61914 C 790.72609 231.12057 787.34036 242.56637 793.25781 250.57617 C 844.71918 320.24234 875.10742 406.37235 875.10742 499.94336 C 875.10742 591.93283 845.74202 676.72496 795.85547 745.75977 C 790.17219 753.62504 793.34048 764.73472 802.31641 768.42188 L 872.73047 797.32227 C 879.31705 800.0224 886.89572 797.72283 890.86914 791.81641 C 944.66917 711.81469 977.04812 616.16489 979.64258 513.34961 C 979.64417 513.22413 979.64417 513.09814 979.64258 512.97266 L 979.64258 486.90625 C 979.64417 486.78077 979.64417 486.65673 979.64258 486.53125 C 977.02866 382.94396 944.18613 286.62909 889.6582 206.26172 C 886.78996 202.0373 881.96971 199.56343 876.86523 199.69336 z M 739.73242 251.22461 C 737.97188 251.23973 736.22799 251.5658 734.58008 252.18555 L 664.35547 278.52344 C 655.82938 281.72349 652.09733 291.72067 656.44141 299.72461 C 688.6996 359.18599 707.01563 427.31195 707.01562 499.94336 C 707.01562 569.50662 690.20981 634.92705 660.45117 692.57422 C 656.41554 700.393 659.94447 709.99017 668.08398 713.33203 L 737.14062 741.67773 C 744.39754 744.6574 752.72396 741.54392 756.24414 734.5332 C 791.72147 663.91099 811.72067 584.17527 811.7207 499.94336 C 811.7207 413.30635 790.56195 331.42543 753.16602 259.32422 C 750.56816 254.31194 745.37775 251.18088 739.73242 251.22461 z M 596.02148 305.23047 C 594.17662 305.21535 592.34405 305.54205 590.61719 306.19141 L 520.87305 332.35156 C 513.10865 335.26429 509.18062 343.92497 512.10352 351.68555 C 529.44066 397.74521 538.92969 447.67401 538.92969 499.94336 C 538.92969 547.59292 531.03301 593.28945 516.50391 635.89648 C 513.94392 643.40353 517.66997 651.60435 525.00781 654.61523 L 594.06445 682.95508 C 602.00112 686.21367 611.05039 682.16384 613.9082 674.07422 C 633.15681 619.5579 643.63477 560.92547 643.63477 499.94336 C 643.63477 434.88046 631.69314 372.49004 609.91406 314.92383 C 607.72481 309.13737 602.20797 305.28746 596.02148 305.23047 z "
+       transform="matrix(0.26458333,0,0,0.26458333,0,32.41665)"
+       id="path828" />
+  </g>
+</svg>

icon-font/U+1FA9F Window.svg

@@ -0,0 +1,121 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   inkscape:version="1.0 (4035a4fb49, 2020-05-01)"
+   sodipodi:docname="U+1FA9F Window Emoji.svg"
+   width="1000"
+   height="1000"
+   viewBox="0 0 264.58333 264.58334"
+   version="1.1"
+   id="svg964">
+  <sodipodi:namedview
+     inkscape:document-rotation="0"
+     inkscape:snap-global="true"
+     inkscape:current-layer="layer1"
+     inkscape:window-maximized="1"
+     inkscape:window-y="27"
+     inkscape:window-x="0"
+     inkscape:cy="600.55213"
+     inkscape:cx="333.69173"
+     inkscape:zoom="1"
+     inkscape:guide-bbox="true"
+     showguides="true"
+     showgrid="false"
+     id="namedview8"
+     inkscape:window-height="1016"
+     inkscape:window-width="1920"
+     inkscape:pageshadow="2"
+     inkscape:pageopacity="0"
+     guidetolerance="10"
+     gridtolerance="10"
+     objecttolerance="10"
+     borderopacity="1"
+     bordercolor="#666666"
+     pagecolor="#ffffff">
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide815"
+       orientation="0,1"
+       position="0,52.916667" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide817"
+       orientation="1,0"
+       position="5.2916667,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide819"
+       orientation="0,1"
+       position="0,259.29167" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide821"
+       orientation="1,0"
+       position="259.29167,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide823"
+       orientation="1,0"
+       position="29.104167,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide825"
+       orientation="1,0"
+       position="235.47917,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide827"
+       orientation="0,1"
+       position="132.29167,161.39583" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide829"
+       orientation="1,0"
+       position="132.29167,161.39583" />
+  </sodipodi:namedview>
+  <defs
+     id="defs958" />
+  <metadata
+     id="metadata961">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(0,-32.41665)">
+    <path
+       d="m 144.70288,175.30013 h 112.77019 c 1.00766,0 1.81888,0.81121 1.81888,1.81887 v 112.77098 c 0,1.00766 -0.81122,1.81887 -1.81888,1.81887 H 144.70288 c -1.00766,0 -1.81888,-0.81121 -1.81888,-1.81887 V 177.119 c 0,-1.00766 0.81122,-1.81887 1.81888,-1.81887 z m -137.5920073,0 H 119.88093 c 1.00766,0 1.81887,0.81121 1.81887,1.81887 v 112.77098 c 0,1.00766 -0.81121,1.81887 -1.81887,1.81887 H 7.1108727 c -1.0076563,0 -1.8188743,-0.81121 -1.8188743,-1.81887 V 177.119 c 0,-1.00766 0.811218,-1.81887 1.8188743,-1.81887 z M 144.70288,37.707294 h 112.77019 c 1.00766,0 1.81888,0.811219 1.81888,1.818875 V 152.29702 c 0,1.00766 -0.81122,1.81887 -1.81888,1.81887 H 144.70288 c -1.00766,0 -1.81888,-0.81121 -1.81888,-1.81887 V 39.526169 c 0,-1.007656 0.81122,-1.818875 1.81888,-1.818875 z m -137.5920073,0 H 119.88093 c 1.00766,0 1.81887,0.811219 1.81887,1.818875 V 152.29702 c 0,1.00766 -0.81121,1.81887 -1.81887,1.81887 H 7.1108727 c -1.0076563,0 -1.8188743,-0.81121 -1.8188743,-1.81887 V 39.526169 c 0,-1.007656 0.811218,-1.818875 1.8188743,-1.818875 z"
+       style="fill:#000000;stroke-width:0.0328268;stop-color:#000000"
+       id="rect857" />
+  </g>
+</svg>

icon-font/U+2190 Leftwards Arrow.svg

@@ -0,0 +1,122 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   inkscape:version="1.0 (4035a4fb49, 2020-05-01)"
+   sodipodi:docname="U+2B60 Leftwards Triangle-Headed Arrow  .svg"
+   width="1000"
+   height="1000"
+   viewBox="0 0 264.58333 264.58334"
+   version="1.1"
+   id="svg964">
+  <sodipodi:namedview
+     inkscape:document-rotation="0"
+     inkscape:snap-global="false"
+     inkscape:current-layer="layer1"
+     inkscape:window-maximized="1"
+     inkscape:window-y="27"
+     inkscape:window-x="0"
+     inkscape:cy="398.16955"
+     inkscape:cx="369.80754"
+     inkscape:zoom="0.5710432"
+     inkscape:guide-bbox="true"
+     showguides="true"
+     showgrid="false"
+     id="namedview8"
+     inkscape:window-height="1016"
+     inkscape:window-width="1920"
+     inkscape:pageshadow="2"
+     inkscape:pageopacity="0"
+     guidetolerance="10"
+     gridtolerance="10"
+     objecttolerance="10"
+     borderopacity="1"
+     bordercolor="#666666"
+     pagecolor="#ffffff">
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide815"
+       orientation="0,1"
+       position="0,52.916667" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide817"
+       orientation="1,0"
+       position="5.2916667,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide819"
+       orientation="0,1"
+       position="0,259.29167" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide821"
+       orientation="1,0"
+       position="259.29167,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide823"
+       orientation="1,0"
+       position="29.104167,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide825"
+       orientation="1,0"
+       position="235.47917,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide827"
+       orientation="0,1"
+       position="132.29167,161.39583" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide829"
+       orientation="1,0"
+       position="132.29167,161.39583" />
+  </sodipodi:namedview>
+  <defs
+     id="defs958" />
+  <metadata
+     id="metadata961">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(0,-32.41665)">
+    <path
+       sodipodi:nodetypes="cccccccccccccccc"
+       d="m 111.13772,76.12716 c 2.15968,0.04486 3.88735,1.808597 3.8871,3.96875 v 59.46045 c 2.2e-4,2.19179 1.77696,3.96853 3.96875,3.96875 h 136.32811 c 2.19179,2.2e-4 3.96853,1.77696 3.96875,3.96875 v 34.43046 c -2.2e-4,2.19179 -1.77696,3.96854 -3.96875,3.96875 H 118.99357 c -2.19179,2.2e-4 -3.96853,1.77696 -3.96875,3.96875 v 59.46045 c -0.002,3.33572 -3.86802,5.18189 -6.46317,3.08612 L 6.7461621,167.79495 c -1.9655102,-1.58863 -1.9655102,-4.58516 0,-6.17379 L 108.56165,77.007725 c 0.72802,-0.588163 1.64034,-0.899858 2.57607,-0.880565 z"
+       style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-feature-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:7.9375;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       id="path841" />
+  </g>
+</svg>

icon-font/U+2191 Upwards Arrow.svg

@@ -0,0 +1,123 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   inkscape:version="1.1.1 (3bf5ae0d25, 2021-09-20)"
+   sodipodi:docname="U+2191 Upwards Arrow.svg"
+   width="1000"
+   height="1000"
+   viewBox="0 0 264.58333 264.58334"
+   version="1.1"
+   id="svg964"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:dc="http://purl.org/dc/elements/1.1/">
+  <sodipodi:namedview
+     inkscape:document-rotation="0"
+     inkscape:snap-global="false"
+     inkscape:current-layer="layer1"
+     inkscape:window-maximized="1"
+     inkscape:window-y="32"
+     inkscape:window-x="0"
+     inkscape:cy="397.51809"
+     inkscape:cx="371.25037"
+     inkscape:zoom="0.5710432"
+     inkscape:guide-bbox="true"
+     showguides="true"
+     showgrid="false"
+     id="namedview8"
+     inkscape:window-height="1011"
+     inkscape:window-width="1920"
+     inkscape:pageshadow="2"
+     inkscape:pageopacity="0"
+     guidetolerance="10"
+     gridtolerance="10"
+     objecttolerance="10"
+     borderopacity="1"
+     bordercolor="#666666"
+     pagecolor="#ffffff"
+     inkscape:pagecheckerboard="0">
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide815"
+       orientation="0,1"
+       position="0,52.916667" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide817"
+       orientation="1,0"
+       position="5.2916667,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide819"
+       orientation="0,1"
+       position="0,259.29167" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide821"
+       orientation="1,0"
+       position="259.29167,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide823"
+       orientation="1,0"
+       position="29.104167,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide825"
+       orientation="1,0"
+       position="235.47917,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide827"
+       orientation="0,1"
+       position="132.29167,161.39583" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide829"
+       orientation="1,0"
+       position="132.29167,161.39583" />
+  </sodipodi:namedview>
+  <defs
+     id="defs958" />
+  <metadata
+     id="metadata961">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(0,-32.41665)">
+    <path
+       sodipodi:nodetypes="cccccccccccccccc"
+       d="m 220.86574,143.56816 c -0.0449,2.15968 -1.8086,3.88735 -3.96875,3.8871 h -59.46045 c -2.19179,2.2e-4 -3.96853,1.77696 -3.96875,3.96875 v 136.32811 c -2.2e-4,2.19179 -1.77696,3.96853 -3.96875,3.96875 h -34.43046 c -2.19179,-2.2e-4 -3.96854,-1.77696 -3.96875,-3.96875 V 151.42401 c -2.2e-4,-2.19179 -1.77696,-3.96853 -3.96875,-3.96875 H 47.670631 c -3.33572,-0.002 -5.18189,-3.86802 -3.08612,-6.46317 L 129.19795,39.176603 c 1.58863,-1.96551 4.58516,-1.96551 6.17379,0 l 84.61344,101.815487 c 0.58816,0.72802 0.89985,1.64034 0.88056,2.57607 z"
+       style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-feature-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:7.9375;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       id="path841" />
+  </g>
+</svg>

icon-font/U+2192 Rightwards Arrow.svg

@@ -0,0 +1,123 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   inkscape:version="1.0 (4035a4fb49, 2020-05-01)"
+   sodipodi:docname="U+2B95 Rightwards Black Arrow .svg"
+   width="1000"
+   height="1000"
+   viewBox="0 0 264.58333 264.58334"
+   version="1.1"
+   id="svg964">
+  <sodipodi:namedview
+     inkscape:document-rotation="0"
+     inkscape:snap-global="false"
+     inkscape:current-layer="layer1"
+     inkscape:window-maximized="1"
+     inkscape:window-y="27"
+     inkscape:window-x="0"
+     inkscape:cy="398.16955"
+     inkscape:cx="369.80754"
+     inkscape:zoom="0.5710432"
+     inkscape:guide-bbox="true"
+     showguides="true"
+     showgrid="false"
+     id="namedview8"
+     inkscape:window-height="1016"
+     inkscape:window-width="1920"
+     inkscape:pageshadow="2"
+     inkscape:pageopacity="0"
+     guidetolerance="10"
+     gridtolerance="10"
+     objecttolerance="10"
+     borderopacity="1"
+     bordercolor="#666666"
+     pagecolor="#ffffff">
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide815"
+       orientation="0,1"
+       position="0,52.916667" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide817"
+       orientation="1,0"
+       position="5.2916667,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide819"
+       orientation="0,1"
+       position="0,259.29167" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide821"
+       orientation="1,0"
+       position="259.29167,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide823"
+       orientation="1,0"
+       position="29.104167,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide825"
+       orientation="1,0"
+       position="235.47917,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide827"
+       orientation="0,1"
+       position="132.29167,161.39583" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide829"
+       orientation="1,0"
+       position="132.29167,161.39583" />
+  </sodipodi:namedview>
+  <defs
+     id="defs958" />
+  <metadata
+     id="metadata961">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(0,-32.41665)">
+    <path
+       sodipodi:nodetypes="cccccccccccccccc"
+       transform="matrix(0.26458333,0,0,0.26458333,0,32.41665)"
+       d="m 579.87305,165.20508 c -8.16257,0.16955 -14.69235,6.83564 -14.69141,15 V 404.9375 c -8.3e-4,8.28393 -6.71607,14.99917 -15,15 H 34.925781 c -8.283925,8.3e-4 -14.999164,6.71607 -15,15 v 130.13086 c 8.36e-4,8.28393 6.716075,14.99921 15,15 H 550.18164 c 8.28393,8.3e-4 14.99917,6.71607 15,15 v 224.73242 c 0.008,12.60745 14.61929,19.58508 24.42774,11.66406 L 974.42383,511.66602 c 7.4287,-6.00428 7.4287,-17.32972 0,-23.33399 L 589.60938,168.5332 c -2.75158,-2.22298 -6.19972,-3.40104 -9.73633,-3.32812 z"
+       style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-feature-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:30;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       id="path841" />
+  </g>
+</svg>

icon-font/U+2193 Downwards Arrow.svg

@@ -0,0 +1,123 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   inkscape:version="1.1.1 (3bf5ae0d25, 2021-09-20)"
+   sodipodi:docname="U+2193 Downwards Arrow.svg"
+   width="1000"
+   height="1000"
+   viewBox="0 0 264.58333 264.58334"
+   version="1.1"
+   id="svg964"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:dc="http://purl.org/dc/elements/1.1/">
+  <sodipodi:namedview
+     inkscape:document-rotation="0"
+     inkscape:snap-global="false"
+     inkscape:current-layer="layer1"
+     inkscape:window-maximized="1"
+     inkscape:window-y="32"
+     inkscape:window-x="0"
+     inkscape:cy="397.51809"
+     inkscape:cx="371.25037"
+     inkscape:zoom="0.5710432"
+     inkscape:guide-bbox="true"
+     showguides="true"
+     showgrid="false"
+     id="namedview8"
+     inkscape:window-height="1011"
+     inkscape:window-width="1920"
+     inkscape:pageshadow="2"
+     inkscape:pageopacity="0"
+     guidetolerance="10"
+     gridtolerance="10"
+     objecttolerance="10"
+     borderopacity="1"
+     bordercolor="#666666"
+     pagecolor="#ffffff"
+     inkscape:pagecheckerboard="0">
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide815"
+       orientation="0,1"
+       position="0,52.916667" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide817"
+       orientation="1,0"
+       position="5.2916667,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide819"
+       orientation="0,1"
+       position="0,259.29167" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide821"
+       orientation="1,0"
+       position="259.29167,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide823"
+       orientation="1,0"
+       position="29.104167,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide825"
+       orientation="1,0"
+       position="235.47917,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide827"
+       orientation="0,1"
+       position="132.29167,161.39583" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide829"
+       orientation="1,0"
+       position="132.29167,161.39583" />
+  </sodipodi:namedview>
+  <defs
+     id="defs958" />
+  <metadata
+     id="metadata961">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(0,-32.41665)">
+    <path
+       sodipodi:nodetypes="cccccccccccccccc"
+       d="m 43.696719,185.85518 c 0.04486,-2.15968 1.808597,-3.88735 3.96875,-3.8871 h 59.460451 c 2.19179,-2.2e-4 3.96853,-1.77696 3.96875,-3.96875 V 41.671221 c 2.2e-4,-2.19179 1.77696,-3.96853 3.96875,-3.96875 h 34.43046 c 2.19179,2.2e-4 3.96854,1.77696 3.96875,3.96875 V 177.99933 c 2.2e-4,2.19179 1.77696,3.96853 3.96875,3.96875 h 59.46045 c 3.33572,0.002 5.18189,3.86802 3.08612,6.46317 l -84.61344,101.81549 c -1.58863,1.96551 -4.58516,1.96551 -6.17379,0 L 44.577284,188.43125 c -0.588163,-0.72802 -0.899858,-1.64034 -0.880565,-2.57607 z"
+       style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-feature-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:7.9375;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       id="path841" />
+  </g>
+</svg>

icon-font/U+21BB Clockwise Open Circle Arrow.svg

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   id="svg964"
+   version="1.1"
+   viewBox="0 0 264.58333 264.58334"
+   height="1000"
+   width="1000"
+   sodipodi:docname="U+21BB Clockwise Open Circle Arrow.svg"
+   inkscape:version="0.92.3 (2405546, 2018-03-11)">
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1920"
+     inkscape:window-height="1016"
+     id="namedview8"
+     showgrid="false"
+     showguides="true"
+     inkscape:guide-bbox="true"
+     inkscape:zoom="0.80283551"
+     inkscape:cx="-178.37846"
+     inkscape:cy="629.41539"
+     inkscape:window-x="0"
+     inkscape:window-y="27"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="svg964">
+    <sodipodi:guide
+       position="0,52.916667"
+       orientation="0,1"
+       id="guide815"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="5.2916667,0"
+       orientation="1,0"
+       id="guide817"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="0,259.29167"
+       orientation="0,1"
+       id="guide819"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="259.29167,0"
+       orientation="1,0"
+       id="guide821"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="29.104167,0"
+       orientation="1,0"
+       id="guide823"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="235.47917,0"
+       orientation="1,0"
+       id="guide825"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="132.29167,161.39583"
+       orientation="0,1"
+       id="guide827"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="132.29167,161.39583"
+       orientation="1,0"
+       id="guide829"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+  </sodipodi:namedview>
+  <defs
+     id="defs958" />
+  <metadata
+     id="metadata961">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     transform="translate(0,-32.41665)"
+     id="layer1"
+     inkscape:groupmode="layer">
+    <path
+       style="fill:#000000;fill-opacity:1;stroke-width:21.16666603;stroke-miterlimit:4;stroke-dasharray:none"
+       d="M 128.96474,82.25221 A 82.523797,82.523797 0 0 0 91.926171,92.736843 82.523797,82.523797 0 0 0 60.331201,205.0845 82.523797,82.523797 0 0 0 172.67886,236.67999 l -10.35647,-18.4614 a 61.356078,61.356078 0 0 1 -83.5303,-23.49056 61.356078,61.356078 0 0 1 23.49107,-83.5303 61.356078,61.356078 0 0 1 83.51066,23.45955 l -39.06066,-10.98486 c -1.41105,-0.39682 -2.86654,0.41933 -3.26337,1.83038 l -4.30723,15.31793 c -0.39682,1.41105 0.41933,2.86602 1.83038,3.26285 l 71.42303,20.08611 c 1.38301,0.33929 2.78648,-0.46935 3.175,-1.85105 l 20.06286,-71.339832 c 0.39683,-1.411052 -0.41983,-2.866535 -1.8309,-3.263366 l -15.32258,-4.308781 c -1.37713,-0.387292 -2.79339,0.382341 -3.22977,1.731161 l -11.0138,39.162988 -0.002,0.001 a 82.523797,82.523797 0 0 0 -75.29004,-42.0496 z"
+       id="path894"
+       inkscape:connector-curvature="0" />
+  </g>
+</svg>

icon-font/U+2261 Identical To.svg

@@ -0,0 +1,136 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   id="svg964"
+   version="1.1"
+   viewBox="0 0 264.58333 264.58334"
+   height="1000"
+   width="1000"
+   sodipodi:docname="U+2261 Identical To .svg"
+   inkscape:version="1.1.1 (3bf5ae0d25, 2021-09-20)"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:dc="http://purl.org/dc/elements/1.1/">
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1920"
+     inkscape:window-height="1011"
+     id="namedview8"
+     showgrid="false"
+     showguides="true"
+     inkscape:guide-bbox="true"
+     inkscape:zoom="0.56769045"
+     inkscape:cx="861.38493"
+     inkscape:cy="500.27264"
+     inkscape:window-x="0"
+     inkscape:window-y="32"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="svg964"
+     inkscape:snap-global="true"
+     inkscape:measure-start="406.912,419.243"
+     inkscape:measure-end="406.912,580.422"
+     inkscape:pagecheckerboard="0">
+    <sodipodi:guide
+       position="0,52.916667"
+       orientation="0,1"
+       id="guide815"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="5.2916667,0"
+       orientation="1,0"
+       id="guide817"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="0,259.29167"
+       orientation="0,1"
+       id="guide819"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="259.29167,0"
+       orientation="1,0"
+       id="guide821"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="29.104167,0"
+       orientation="1,0"
+       id="guide823"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="235.47917,0"
+       orientation="1,0"
+       id="guide825"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="132.29167,161.39583"
+       orientation="0,1"
+       id="guide827"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="132.29167,161.39583"
+       orientation="1,0"
+       id="guide829"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+  </sodipodi:namedview>
+  <defs
+     id="defs958" />
+  <metadata
+     id="metadata961">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     transform="translate(0,-32.41665)"
+     id="layer1"
+     inkscape:groupmode="layer" />
+  <path
+     sodipodi:nodetypes="ccccccccc"
+     id="path827"
+     d="m 220.87358,125.65977 c -2.2e-4,-2.19179 -1.77696,-3.96852 -3.96875,-3.96875 H 47.678502 c -2.191787,2.3e-4 -3.968527,1.77696 -3.968747,3.96875 v 13.26379 c 2.2e-4,2.19179 1.77696,3.96854 3.968747,3.96875 H 216.90483 c 2.19179,-2.1e-4 3.96853,-1.77696 3.96875,-3.96875 z"
+     style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-feature-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:7.9375;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+     inkscape:connector-curvature="0" />
+  <path
+     inkscape:connector-curvature="0"
+     style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-feature-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:7.9375;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+     d="m 220.87358,182.16411 c -2.2e-4,-2.19179 -1.77696,-3.96852 -3.96875,-3.96875 H 47.678502 c -2.191787,2.3e-4 -3.968527,1.77696 -3.968747,3.96875 v 13.26379 c 2.2e-4,2.19179 1.77696,3.96854 3.968747,3.96875 H 216.90483 c 2.19179,-2.1e-4 3.96853,-1.77696 3.96875,-3.96875 z"
+     id="path200"
+     sodipodi:nodetypes="ccccccccc" />
+  <path
+     inkscape:connector-curvature="0"
+     style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-feature-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:7.9375;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+     d="m 220.87358,69.155427 c -2.2e-4,-2.19179 -1.77696,-3.96852 -3.96875,-3.96875 H 47.678502 c -2.191787,2.3e-4 -3.968527,1.77696 -3.968747,3.96875 v 13.263781 c 2.2e-4,2.19179 1.77696,3.968537 3.968747,3.968747 H 216.90483 c 2.19179,-2.1e-4 3.96853,-1.776957 3.96875,-3.968747 z"
+     id="path202"
+     sodipodi:nodetypes="ccccccccc" />
+</svg>

icon-font/U+2326 Erase To the Right.svg

@@ -0,0 +1,123 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   inkscape:version="1.1.1 (3bf5ae0d25, 2021-09-20)"
+   sodipodi:docname="U+2326 Erase To the Right.svg"
+   width="1000"
+   height="1000"
+   viewBox="0 0 264.58333 264.58334"
+   version="1.1"
+   id="svg964"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:dc="http://purl.org/dc/elements/1.1/">
+  <sodipodi:namedview
+     inkscape:document-rotation="0"
+     inkscape:snap-global="true"
+     inkscape:current-layer="layer1"
+     inkscape:window-maximized="1"
+     inkscape:window-y="32"
+     inkscape:window-x="0"
+     inkscape:cy="432.54171"
+     inkscape:cx="961.39837"
+     inkscape:zoom="0.5710432"
+     inkscape:guide-bbox="true"
+     showguides="true"
+     showgrid="false"
+     id="namedview8"
+     inkscape:window-height="1011"
+     inkscape:window-width="1920"
+     inkscape:pageshadow="2"
+     inkscape:pageopacity="0"
+     guidetolerance="10"
+     gridtolerance="10"
+     objecttolerance="10"
+     borderopacity="1"
+     bordercolor="#666666"
+     pagecolor="#ffffff"
+     inkscape:pagecheckerboard="0">
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide815"
+       orientation="0,1"
+       position="0,52.916667" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide817"
+       orientation="1,0"
+       position="5.2916667,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide819"
+       orientation="0,1"
+       position="0,259.29167" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide821"
+       orientation="1,0"
+       position="259.29167,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide823"
+       orientation="1,0"
+       position="29.104167,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide825"
+       orientation="1,0"
+       position="235.47917,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide827"
+       orientation="0,1"
+       position="132.29167,161.39583" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide829"
+       orientation="1,0"
+       position="132.29167,161.39583" />
+  </sodipodi:namedview>
+  <defs
+     id="defs958" />
+  <metadata
+     id="metadata961">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(0,-32.41665)">
+    <path
+       id="path841"
+       style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-feature-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:7.9375;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       d="m 153.42494,76.12716 c 0.93573,-0.01929 1.84805,0.292402 2.57607,0.880565 L 257.8165,161.62116 c 1.96551,1.58863 1.96551,4.58516 0,6.17379 l -101.81549,84.61344 c -0.81646,0.65934 -1.75837,0.92725 -2.66651,0.88263 H 9.2409757 c -2.1917898,-2.2e-4 -3.9685409,-1.77696 -3.96875,-3.96875 V 181.92432 147.49386 80.09591 c 2.091e-4,-2.19179 1.7769602,-3.96853 3.96875,-3.96875 z M 45.447551,116.19655 c -1.015892,0 -2.03204,0.38767 -2.807065,1.16272 l -9.312609,9.31261 c -1.55009,1.55005 -1.55009,4.06304 0,5.61309 l 32.422309,32.42386 -32.422309,32.42386 c -1.549791,1.54928 -1.549791,4.06118 -0.0016,5.61155 l 9.314159,9.31416 c 1.5495,1.55057 4.062999,1.5516 5.613611,0.002 l 32.423343,-32.42541 32.42386,32.42541 c 1.55061,1.5496 4.06411,1.54857 5.61361,-0.002 l 9.31416,-9.31416 c 1.54831,-1.55038 1.54727,-4.06227 -0.002,-5.61155 L 95.605211,164.70883 128.027,132.28497 c 1.55009,-1.55005 1.55009,-4.06304 0,-5.61309 l -9.31209,-9.31261 c -0.73003,-0.73002 -1.71586,-1.14701 -2.74815,-1.16221 -1.0729,-0.0158 -2.10672,0.40347 -2.86546,1.16221 L 80.67744,149.78313 48.254097,117.35927 c -0.775025,-0.77505 -1.790657,-1.16272 -2.806546,-1.16272 z" />
+    <g
+       id="g22" />
+  </g>
+</svg>

icon-font/U+2328 Keyboard.svg

@@ -0,0 +1,94 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   id="svg8"
+   version="1.1"
+   viewBox="0 0 264.58333 264.58334"
+   height="1000"
+   width="1000"
+   sodipodi:docname="U+2328  Keyboard.svg"
+   inkscape:version="0.92.3 (2405546, 2018-03-11)">
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1920"
+     inkscape:window-height="1016"
+     id="namedview7"
+     showgrid="false"
+     inkscape:zoom="0.6675088"
+     inkscape:cx="36.943583"
+     inkscape:cy="434.3724"
+     inkscape:window-x="0"
+     inkscape:window-y="27"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="svg8"
+     showguides="true"
+     inkscape:guide-bbox="true">
+    <sodipodi:guide
+       position="0,52.916667"
+       orientation="0,1"
+       id="guide816"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="0,259.29167"
+       orientation="0,1"
+       id="guide814"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="5.2916667,0"
+       orientation="1,0"
+       id="guide817"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="259.29167,0"
+       orientation="1,0"
+       id="guide819"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+  </sodipodi:namedview>
+  <defs
+     id="defs2" />
+  <metadata
+     id="metadata5">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     transform="translate(0,-35.062481)"
+     id="layer1"
+     style="fill:#000000"
+     inkscape:groupmode="layer">
+    <path
+       id="rect828"
+       transform="matrix(0.26458333,0,0,0.26458333,0,32.41665)"
+       d="m 70,220 c -27.700001,0 -50,22.3 -50,50 v 480 c 0,27.7 22.299999,50 50,50 h 860 c 27.7,0 50,-22.3 50,-50 V 270 c 0,-27.7 -22.3,-50 -50,-50 z m 65,60 h 90 c 5.54,0 10,4.46 10,10 v 90 c 0,5.54 -4.46,10 -10,10 h -90 c -5.54,0 -10,-4.46 -10,-10 v -90 c 0,-5.54 4.46,-10 10,-10 z m 160,0 h 90 c 5.54,0 10,4.46 10,10 v 90 c 0,5.54 -4.46,10 -10,10 h -90 c -5.54,0 -10,-4.46 -10,-10 v -90 c 0,-5.54 4.46,-10 10,-10 z m 160,0 h 90 c 5.54,0 10,4.46 10,10 v 90 c 0,5.54 -4.46,10 -10,10 h -90 c -5.54,0 -10,-4.46 -10,-10 v -90 c 0,-5.54 4.46,-10 10,-10 z m 160,0 h 90 c 5.54,0 10,4.46 10,10 v 90 c 0,5.54 -4.46,10 -10,10 h -90 c -5.54,0 -10,-4.46 -10,-10 v -90 c 0,-5.54 4.46,-10 10,-10 z m 160,0 h 90 c 5.54,0 10,4.46 10,10 v 90 c 0,5.54 -4.46,10 -10,10 h -90 c -5.54,0 -10,-4.46 -10,-10 v -90 c 0,-5.54 4.46,-10 10,-10 z M 135,440 h 90 c 5.54,0 10,4.46 10,10 v 90 c 0,5.54 -4.46,10 -10,10 h -90 c -5.54,0 -10,-4.46 -10,-10 v -90 c 0,-5.54 4.46,-10 10,-10 z m 160,0 h 90 c 5.54,0 10,4.46 10,10 v 90 c 0,5.54 -4.46,10 -10,10 h -90 c -5.54,0 -10,-4.46 -10,-10 v -90 c 0,-5.54 4.46,-10 10,-10 z m 160,0 h 90 c 5.54,0 10,4.46 10,10 v 90 c 0,5.54 -4.46,10 -10,10 h -90 c -5.54,0 -10,-4.46 -10,-10 v -90 c 0,-5.54 4.46,-10 10,-10 z m 160,0 h 90 c 5.54,0 10,4.46 10,10 v 90 c 0,5.54 -4.46,10 -10,10 h -90 c -5.54,0 -10,-4.46 -10,-10 v -90 c 0,-5.54 4.46,-10 10,-10 z m 160,0 h 90 c 5.54,0 10,4.46 10,10 v 90 c 0,5.54 -4.46,10 -10,10 h -90 c -5.54,0 -10,-4.46 -10,-10 v -90 c 0,-5.54 4.46,-10 10,-10 z M 260,610 h 480 c 5.54,0 10,4.46 10,10 v 90 c 0,5.54 -4.46,10 -10,10 H 260 c -5.54,0 -10,-4.46 -10,-10 v -90 c 0,-5.54 4.46,-10 10,-10 z"
+       style="fill:#000000;fill-opacity:1;stroke-width:0.98675704"
+       inkscape:connector-curvature="0" />
+  </g>
+</svg>

icon-font/U+232B Erase To the Left.svg

@@ -0,0 +1,125 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   inkscape:version="1.1.1 (3bf5ae0d25, 2021-09-20)"
+   sodipodi:docname="U+232B Erase To the Left.svg"
+   width="1000"
+   height="1000"
+   viewBox="0 0 264.58333 264.58334"
+   version="1.1"
+   id="svg964"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:dc="http://purl.org/dc/elements/1.1/">
+  <sodipodi:namedview
+     inkscape:document-rotation="0"
+     inkscape:snap-global="true"
+     inkscape:current-layer="layer1"
+     inkscape:window-maximized="1"
+     inkscape:window-y="32"
+     inkscape:window-x="0"
+     inkscape:cy="432.54171"
+     inkscape:cx="961.39837"
+     inkscape:zoom="0.5710432"
+     inkscape:guide-bbox="true"
+     showguides="true"
+     showgrid="false"
+     id="namedview8"
+     inkscape:window-height="1011"
+     inkscape:window-width="1920"
+     inkscape:pageshadow="2"
+     inkscape:pageopacity="0"
+     guidetolerance="10"
+     gridtolerance="10"
+     objecttolerance="10"
+     borderopacity="1"
+     bordercolor="#666666"
+     pagecolor="#ffffff"
+     inkscape:pagecheckerboard="0">
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide815"
+       orientation="0,1"
+       position="0,52.916667" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide817"
+       orientation="1,0"
+       position="5.2916667,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide819"
+       orientation="0,1"
+       position="0,259.29167" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide821"
+       orientation="1,0"
+       position="259.29167,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide823"
+       orientation="1,0"
+       position="29.104167,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide825"
+       orientation="1,0"
+       position="235.47917,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide827"
+       orientation="0,1"
+       position="132.29167,161.39583" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide829"
+       orientation="1,0"
+       position="132.29167,161.39583" />
+  </sodipodi:namedview>
+  <defs
+     id="defs958" />
+  <metadata
+     id="metadata961">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(0,-32.41665)">
+    <path
+       id="path841"
+       style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-feature-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:30;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       d="M 420.04883 165.20508 C 416.51221 165.13217 413.06407 166.31022 410.3125 168.5332 L 25.498047 488.33203 C 18.069348 494.3363 18.069348 505.66174 25.498047 511.66602 L 410.3125 831.46484 C 413.39833 833.95684 416.95828 834.96942 420.39062 834.80078 L 964.99609 834.80078 C 973.28002 834.79995 979.9953 828.08471 979.99609 819.80078 L 979.99609 565.06836 L 979.99609 434.9375 L 979.99609 180.20508 C 979.9953 171.92115 973.28002 165.20591 964.99609 165.20508 L 420.04883 165.20508 z M 828.15234 316.64844 C 831.99193 316.64844 835.83249 318.11366 838.76172 321.04297 L 873.95898 356.24023 C 879.81759 362.09869 879.81759 371.59662 873.95898 377.45508 L 751.41797 500.00195 L 873.95898 622.54883 C 879.81646 628.40437 879.81646 637.89815 873.96484 643.75781 L 838.76172 678.96094 C 832.90534 684.82136 823.4055 684.82528 817.54492 678.96875 L 695 556.41602 L 572.45312 678.96875 C 566.59255 684.82551 557.09271 684.82159 551.23633 678.96094 L 516.0332 643.75781 C 510.18132 637.89811 510.18524 628.40437 516.04102 622.54883 L 638.58008 500.00195 L 516.04102 377.45508 C 510.18241 371.59662 510.18241 362.09869 516.04102 356.24023 L 551.23633 321.04297 C 553.9955 318.28384 557.72148 316.70784 561.62305 316.65039 C 565.6781 316.59052 569.58545 318.17529 572.45312 321.04297 L 695 443.58984 L 817.54492 321.04297 C 820.47415 318.11366 824.31276 316.64844 828.15234 316.64844 z "
+       transform="matrix(0.26458333,0,0,0.26458333,0,32.41665)" />
+    <g
+       id="g22" />
+  </g>
+</svg>

icon-font/U+23ED Black Right-Pointing Double Triangle with Vertical Bar.svg

@@ -0,0 +1,122 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   id="svg964"
+   version="1.1"
+   viewBox="0 0 264.58333 264.58334"
+   height="1000"
+   width="1000"
+   sodipodi:docname="U+23ED Black Right-Pointing Double Triangle with Vertical Bar.svg"
+   inkscape:version="0.92.3 (2405546, 2018-03-11)">
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1920"
+     inkscape:window-height="1016"
+     id="namedview8"
+     showgrid="false"
+     showguides="true"
+     inkscape:guide-bbox="true"
+     inkscape:zoom="0.55461861"
+     inkscape:cx="826.41907"
+     inkscape:cy="532.06492"
+     inkscape:window-x="0"
+     inkscape:window-y="27"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="layer1"
+     inkscape:snap-global="true">
+    <sodipodi:guide
+       position="0,52.916667"
+       orientation="0,1"
+       id="guide815"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="5.2916667,0"
+       orientation="1,0"
+       id="guide817"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="0,259.29167"
+       orientation="0,1"
+       id="guide819"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="259.29167,0"
+       orientation="1,0"
+       id="guide821"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="29.104167,0"
+       orientation="1,0"
+       id="guide823"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="235.47917,0"
+       orientation="1,0"
+       id="guide825"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="132.29167,161.39583"
+       orientation="0,1"
+       id="guide827"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="132.29167,161.39583"
+       orientation="1,0"
+       id="guide829"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+  </sodipodi:namedview>
+  <defs
+     id="defs958" />
+  <metadata
+     id="metadata961">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     transform="translate(0,-32.41665)"
+     id="layer1"
+     inkscape:groupmode="layer">
+    <path
+       style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-feature-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:7.9375;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       d="m 255.29862,76.12716 c 2.19179,2.2e-4 3.96854,1.77696 3.96875,3.96875 v 169.22636 c -2.1e-4,2.19179 -1.77696,3.96853 -3.96875,3.96875 h -34.43053 c -2.19179,-2.2e-4 -3.96853,-1.77696 -3.96875,-3.96875 v -79.51401 l -99.32387,82.60013 c -2.59514,2.09577 -6.46148,0.2496 -6.46317,-3.08612 v -79.51814 l -99.329557,82.60426 c -2.5951393,2.09577 -6.4609663,0.2496 -6.4626543,-3.08612 V 80.09591 c 3.598e-4,-2.23761 1.8488977,-4.033041 4.085537,-3.967199 0.8670713,0.02536 1.7021253,0.334182 2.3771173,0.879014 L 111.1123,159.61198 V 80.09591 c 3.6e-4,-2.23761 1.84941,-4.033041 4.08605,-3.967199 0.86707,0.02536 1.70213,0.334182 2.37712,0.879014 l 99.32387,82.600125 V 80.09591 c 2.2e-4,-2.19179 1.77696,-3.96853 3.96875,-3.96875 z"
+       id="path832"
+       inkscape:connector-curvature="0"
+       sodipodi:nodetypes="ccccccccccccccccccccccc" />
+  </g>
+</svg>

icon-font/U+23EE Black Left-Pointing Double Triangle with Vertical Bar.svg

@@ -0,0 +1,122 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   id="svg964"
+   version="1.1"
+   viewBox="0 0 264.58333 264.58334"
+   height="1000"
+   width="1000"
+   sodipodi:docname="U+23EE Black Left-Pointing Double Triangle with Vertical Bar.svg"
+   inkscape:version="0.92.3 (2405546, 2018-03-11)">
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1920"
+     inkscape:window-height="1016"
+     id="namedview8"
+     showgrid="false"
+     showguides="true"
+     inkscape:guide-bbox="true"
+     inkscape:zoom="0.55461861"
+     inkscape:cx="406.82297"
+     inkscape:cy="697.5945"
+     inkscape:window-x="0"
+     inkscape:window-y="27"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="layer1"
+     inkscape:snap-global="true">
+    <sodipodi:guide
+       position="0,52.916667"
+       orientation="0,1"
+       id="guide815"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="5.2916667,0"
+       orientation="1,0"
+       id="guide817"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="0,259.29167"
+       orientation="0,1"
+       id="guide819"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="259.29167,0"
+       orientation="1,0"
+       id="guide821"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="29.104167,0"
+       orientation="1,0"
+       id="guide823"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="235.47917,0"
+       orientation="1,0"
+       id="guide825"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="132.29167,161.39583"
+       orientation="0,1"
+       id="guide827"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="132.29167,161.39583"
+       orientation="1,0"
+       id="guide829"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+  </sodipodi:namedview>
+  <defs
+     id="defs958" />
+  <metadata
+     id="metadata961">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     transform="translate(0,-32.41665)"
+     id="layer1"
+     inkscape:groupmode="layer">
+    <path
+       style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-feature-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:7.9375;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       d="m 9.2888388,76.127161 c -2.19179,2.2e-4 -3.96854,1.77696 -3.96875,3.96875 V 249.32227 c 2.1e-4,2.19179 1.77696,3.96853 3.96875,3.96875 H 43.719369 c 2.19179,-2.2e-4 3.96853,-1.77696 3.96875,-3.96875 v -79.51401 l 99.323871,82.60013 c 2.59514,2.09577 6.46148,0.2496 6.46317,-3.08612 v -79.51814 l 99.32956,82.60426 c 2.59514,2.09577 6.46096,0.2496 6.46265,-3.08612 V 80.095911 c -3.6e-4,-2.23761 -1.8489,-4.033041 -4.08554,-3.967199 -0.86707,0.02536 -1.70212,0.334182 -2.37711,0.879014 L 153.47516,159.61198 V 80.095911 c -2.6e-4,-2.23761 -1.84941,-4.033041 -4.08605,-3.967199 -0.86707,0.02536 -1.70213,0.334182 -2.37712,0.879014 L 47.688119,159.60785 V 80.095911 c -2.2e-4,-2.19179 -1.77696,-3.96853 -3.96875,-3.96875 z"
+       id="path832-3"
+       inkscape:connector-curvature="0"
+       sodipodi:nodetypes="ccccccccccccccccccccccc" />
+  </g>
+</svg>

icon-font/U+23EF Black Right-Pointing Triangle with Double Vertical Bar.svg

@@ -0,0 +1,121 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   id="svg964"
+   version="1.1"
+   viewBox="0 0 264.58333 264.58334"
+   height="1000"
+   width="1000"
+   sodipodi:docname="U+23EF Black Right-Pointing Triangle with Double Vertical Bar.svg"
+   inkscape:version="0.92.3 (2405546, 2018-03-11)">
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1920"
+     inkscape:window-height="1016"
+     id="namedview8"
+     showgrid="false"
+     showguides="true"
+     inkscape:guide-bbox="true"
+     inkscape:zoom="0.39217458"
+     inkscape:cx="1029.7358"
+     inkscape:cy="424.58204"
+     inkscape:window-x="0"
+     inkscape:window-y="27"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="layer1"
+     inkscape:snap-global="false">
+    <sodipodi:guide
+       position="0,52.916667"
+       orientation="0,1"
+       id="guide815"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="5.2916667,0"
+       orientation="1,0"
+       id="guide817"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="0,259.29167"
+       orientation="0,1"
+       id="guide819"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="259.29167,0"
+       orientation="1,0"
+       id="guide821"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="29.104167,0"
+       orientation="1,0"
+       id="guide823"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="235.47917,0"
+       orientation="1,0"
+       id="guide825"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="132.29167,161.39583"
+       orientation="0,1"
+       id="guide827"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="132.29167,161.39583"
+       orientation="1,0"
+       id="guide829"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+  </sodipodi:namedview>
+  <defs
+     id="defs958" />
+  <metadata
+     id="metadata961">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     transform="translate(0,-32.41665)"
+     id="layer1"
+     inkscape:groupmode="layer">
+    <path
+       style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-feature-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:30;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       d="M 34.798828 165.20508 C 26.636227 165.37463 20.106477 172.04072 20.107422 180.20508 L 20.107422 819.80078 C 20.113822 832.40823 34.726741 839.38586 44.535156 831.46484 L 429.34961 511.66602 C 436.77831 505.66174 436.77831 494.3363 429.34961 488.33203 L 44.535156 168.5332 C 41.783607 166.31022 38.335407 165.13216 34.798828 165.20508 z M 562.77734 165.20508 C 554.49341 165.20591 547.77818 171.92115 547.77734 180.20508 L 547.77734 819.80078 C 547.77818 828.08471 554.49341 834.79995 562.77734 834.80078 L 692.9082 834.80078 C 701.19213 834.79995 707.90741 828.08471 707.9082 819.80078 L 707.9082 180.20508 C 707.90741 171.92115 701.19213 165.20591 692.9082 165.20508 L 562.77734 165.20508 z M 834.77734 165.20508 C 826.49341 165.20591 819.77818 171.92115 819.77734 180.20508 L 819.77734 819.80078 C 819.77818 828.08471 826.49341 834.79995 834.77734 834.80078 L 964.9082 834.80078 C 973.19213 834.79995 979.90741 828.08471 979.9082 819.80078 L 979.9082 180.20508 C 979.90741 171.92115 973.19213 165.20591 964.9082 165.20508 L 834.77734 165.20508 z "
+       transform="matrix(0.26458333,0,0,0.26458333,0,32.41665)"
+       id="path832" />
+  </g>
+</svg>

icon-font/U+27A3 Three-D Bottom-Lighted Rightwards Arrowhead.svg

@@ -0,0 +1,121 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   id="svg964"
+   version="1.1"
+   viewBox="0 0 264.58333 264.58334"
+   height="1000"
+   width="1000"
+   sodipodi:docname="U+27A3 Three-D Bottom-Lighted Rightwards Arrowhead.svg"
+   inkscape:version="0.92.3 (2405546, 2018-03-11)">
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1920"
+     inkscape:window-height="1016"
+     id="namedview8"
+     showgrid="false"
+     showguides="true"
+     inkscape:guide-bbox="true"
+     inkscape:zoom="0.40141775"
+     inkscape:cx="-696.51465"
+     inkscape:cy="600.56652"
+     inkscape:window-x="0"
+     inkscape:window-y="27"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="svg964"
+     inkscape:snap-global="true">
+    <sodipodi:guide
+       position="0,52.916667"
+       orientation="0,1"
+       id="guide815"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="5.2916667,0"
+       orientation="1,0"
+       id="guide817"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="0,259.29167"
+       orientation="0,1"
+       id="guide819"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="259.29167,0"
+       orientation="1,0"
+       id="guide821"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="29.104167,0"
+       orientation="1,0"
+       id="guide823"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="235.47917,0"
+       orientation="1,0"
+       id="guide825"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="132.29167,161.39583"
+       orientation="0,1"
+       id="guide827"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="132.29167,161.39583"
+       orientation="1,0"
+       id="guide829"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+  </sodipodi:namedview>
+  <defs
+     id="defs958" />
+  <metadata
+     id="metadata961">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     transform="translate(0,-32.41665)"
+     id="layer1"
+     inkscape:groupmode="layer">
+    <path
+       style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-feature-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:7.9375;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       d="m 8.7736245,75.791674 c -0.123916,-0.0016 -0.2452709,0.0044 -0.3653523,0.01344 a 3.9691468,3.9691468 0 0 0 -0.067179,0.0062 C 7.2317321,75.913716 6.2976727,76.45878 5.6601195,77.238097 a 3.9691468,3.9691468 0 0 0 -0.028422,0.03514 c -0.075952,0.095 -0.1484805,0.192712 -0.2154907,0.294039 a 3.9691468,3.9691468 0 0 0 -0.019637,0.03101 c -0.057995,0.08945 -0.1120172,0.181192 -0.1627807,0.274919 a 3.9691468,3.9691468 0 0 0 -0.03824,0.07183 c -0.054268,0.105191 -0.1039474,0.212806 -0.1488281,0.322461 a 3.9691468,3.9691468 0 0 0 -0.00982,0.02481 c -0.3795162,0.945056 -0.4031882,2.039264 0.054261,3.065962 a 3.9691468,3.9691468 0 0 0 0.010335,0.02222 c 0.045024,0.09943 0.094615,0.198189 0.1488282,0.296106 a 3.9691468,3.9691468 0 0 0 0.056327,0.103353 L 51.196358,159.41706 h 5.16e-4 l 0.154512,0.26097 -46.1444686,88.1388 a 3.9691468,3.9691468 0 0 0 4.8772216,5.56814 L 256.69337,163.28763 a 3.9691468,3.9691468 0 0 0 2.59829,-3.87057 h 0.006 c -0.002,-0.046 -0.007,-0.0913 -0.0103,-0.13694 a 3.9691468,3.9691468 0 0 0 -0.005,-0.0667 c -0.0102,-0.11599 -0.0244,-0.23085 -0.0444,-0.34416 a 3.9691468,3.9691468 0 0 0 -0.004,-0.0253 c -0.0235,-0.12819 -0.0528,-0.25426 -0.0884,-0.37827 -2e-4,-6.9e-4 -3.2e-4,-0.001 -5.2e-4,-0.002 a 3.9691468,3.9691468 0 0 0 -0.003,-0.007 c -0.0328,-0.11324 -0.0712,-0.22416 -0.11369,-0.33331 a 3.9691468,3.9691468 0 0 0 -0.0295,-0.0739 c -0.0397,-0.0964 -0.0832,-0.19104 -0.13022,-0.2837 a 3.9691468,3.9691468 0 0 0 -0.0264,-0.0532 c -0.0583,-0.1107 -0.12084,-0.2185 -0.18913,-0.32298 a 3.9691468,3.9691468 0 0 0 -0.015,-0.0217 c -0.0618,-0.0932 -0.12802,-0.18318 -0.1974,-0.27079 a 3.9691468,3.9691468 0 0 0 -0.0568,-0.0692 c -0.0635,-0.0766 -0.12978,-0.15103 -0.19895,-0.22273 a 3.9691468,3.9691468 0 0 0 -0.0481,-0.0501 c -0.0872,-0.0873 -0.17798,-0.171 -0.27337,-0.25012 a 3.9691468,3.9691468 0 0 0 -0.0248,-0.0196 c -0.0848,-0.0692 -0.17282,-0.13464 -0.26355,-0.19689 a 3.9691468,3.9691468 0 0 0 -0.0811,-0.0532 c -0.079,-0.0514 -0.15982,-0.1003 -0.24288,-0.14624 a 3.9691468,3.9691468 0 0 0 -0.0765,-0.0419 c -0.10802,-0.0567 -0.21815,-0.11014 -0.33228,-0.1571 a 3.9691468,3.9691468 0 0 0 -0.28991,-0.10645 L 9.9451294,75.984944 c -0.1129358,-0.03663 -0.2276441,-0.06619 -0.3431315,-0.0925 A 3.9691468,3.9691468 0 0 0 9.4924437,75.869706 C 9.410698,75.853492 9.3285502,75.839917 9.245947,75.828881 a 3.9691468,3.9691468 0 0 0 -0.119889,-0.01499 c -0.1153425,-0.01185 -0.2310612,-0.02 -0.3472657,-0.0217 -0.00173,-2.6e-5 -0.00344,-4.94e-4 -0.00517,-5.17e-4 z M 59.854745,159.41706 H 241.99763 l 1.14515,0.37052 -226.146918,82.62286 42.412398,-81.00952 a 3.9691468,3.9691468 0 0 0 0.446485,-1.98386 z"
+       id="path943"
+       inkscape:connector-curvature="0" />
+  </g>
+</svg>

icon-font/U+2922 North East and South West Arrow.svg

@@ -0,0 +1,125 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   id="svg964"
+   version="1.1"
+   viewBox="0 0 264.58333 264.58334"
+   height="1000"
+   width="1000"
+   sodipodi:docname="U+2922 North East and South West Arrow.svg"
+   inkscape:version="0.92.3 (2405546, 2018-03-11)">
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1920"
+     inkscape:window-height="1016"
+     id="namedview8"
+     showgrid="false"
+     showguides="true"
+     inkscape:guide-bbox="true"
+     inkscape:zoom="0.6675088"
+     inkscape:cx="-229.33596"
+     inkscape:cy="533.99774"
+     inkscape:window-x="0"
+     inkscape:window-y="27"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="svg964">
+    <sodipodi:guide
+       position="0,52.916667"
+       orientation="0,1"
+       id="guide815"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="5.2916667,0"
+       orientation="1,0"
+       id="guide817"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="0,259.29167"
+       orientation="0,1"
+       id="guide819"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="259.29167,0"
+       orientation="1,0"
+       id="guide821"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="29.104167,0"
+       orientation="1,0"
+       id="guide823"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="235.47917,0"
+       orientation="1,0"
+       id="guide825"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="132.29167,161.39583"
+       orientation="0,1"
+       id="guide827"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="132.29167,161.39583"
+       orientation="1,0"
+       id="guide829"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+  </sodipodi:namedview>
+  <defs
+     id="defs958" />
+  <metadata
+     id="metadata961">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     transform="translate(0,-8.6025155)"
+     id="layer1"
+     inkscape:groupmode="layer">
+    <path
+       id="path1517"
+       d="m 158.73364,37.705046 c -1.46579,0 -2.64583,1.180041 -2.64583,2.645833 v 15.916858 c 0,1.430541 1.12482,2.585774 2.54145,2.640667 h 40.68227 l -46.19098,46.189936 -5.2e-4,5.2e-4 c -1.03596,1.03651 -1.03579,2.70456 5.2e-4,3.74086 l 11.22722,11.22722 c 1.03629,1.0363 2.70435,1.03647 3.74086,5.1e-4 l 46.19046,-46.191485 v 40.577875 c 0,1.46579 1.18004,2.64584 2.64583,2.64584 h 15.91169 c 1.46579,0 2.64584,-1.18005 2.64584,-2.64584 V 40.260446 c -0.0478,-1.423224 -1.20594,-2.5554 -2.64119,-2.5554 z"
+       style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-feature-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:21.16666603;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       inkscape:connector-curvature="0" />
+    <path
+       style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-feature-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:21.16666603;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       d="m 105.83739,244.08332 c 1.46579,0 2.64583,-1.18004 2.64583,-2.64583 v -15.91686 c 0,-1.43054 -1.12482,-2.58577 -2.54144,-2.64066 H 65.259526 l 46.190964,-46.18995 5.1e-4,-5.1e-4 c 1.03596,-1.03651 1.03579,-2.70457 -5.1e-4,-3.74086 l -11.22723,-11.22722 c -1.036275,-1.03631 -2.704335,-1.03648 -3.740835,-5.2e-4 l -46.190459,46.1915 v -40.57789 c 0,-1.46579 -1.18005,-2.64583 -2.64584,-2.64583 h -15.91169 c -1.46579,0 -2.64583,1.18004 -2.64583,2.64583 v 74.1934 c 0.0478,1.42323 1.20593,2.5554 2.64118,2.5554 z"
+       id="path1642"
+       inkscape:connector-curvature="0" />
+  </g>
+</svg>

icon-font/U+2B60 Leftwards Triangle-Headed Arrow.svg

@@ -0,0 +1,122 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   inkscape:version="1.0 (4035a4fb49, 2020-05-01)"
+   sodipodi:docname="U+2B60 Leftwards Triangle-Headed Arrow  .svg"
+   width="1000"
+   height="1000"
+   viewBox="0 0 264.58333 264.58334"
+   version="1.1"
+   id="svg964">
+  <sodipodi:namedview
+     inkscape:document-rotation="0"
+     inkscape:snap-global="false"
+     inkscape:current-layer="layer1"
+     inkscape:window-maximized="1"
+     inkscape:window-y="27"
+     inkscape:window-x="0"
+     inkscape:cy="398.16955"
+     inkscape:cx="369.80754"
+     inkscape:zoom="0.5710432"
+     inkscape:guide-bbox="true"
+     showguides="true"
+     showgrid="false"
+     id="namedview8"
+     inkscape:window-height="1016"
+     inkscape:window-width="1920"
+     inkscape:pageshadow="2"
+     inkscape:pageopacity="0"
+     guidetolerance="10"
+     gridtolerance="10"
+     objecttolerance="10"
+     borderopacity="1"
+     bordercolor="#666666"
+     pagecolor="#ffffff">
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide815"
+       orientation="0,1"
+       position="0,52.916667" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide817"
+       orientation="1,0"
+       position="5.2916667,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide819"
+       orientation="0,1"
+       position="0,259.29167" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide821"
+       orientation="1,0"
+       position="259.29167,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide823"
+       orientation="1,0"
+       position="29.104167,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide825"
+       orientation="1,0"
+       position="235.47917,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide827"
+       orientation="0,1"
+       position="132.29167,161.39583" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide829"
+       orientation="1,0"
+       position="132.29167,161.39583" />
+  </sodipodi:namedview>
+  <defs
+     id="defs958" />
+  <metadata
+     id="metadata961">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(0,-32.41665)">
+    <path
+       sodipodi:nodetypes="cccccccccccccccc"
+       d="m 111.13772,76.12716 c 2.15968,0.04486 3.88735,1.808597 3.8871,3.96875 v 59.46045 c 2.2e-4,2.19179 1.77696,3.96853 3.96875,3.96875 h 136.32811 c 2.19179,2.2e-4 3.96853,1.77696 3.96875,3.96875 v 34.43046 c -2.2e-4,2.19179 -1.77696,3.96854 -3.96875,3.96875 H 118.99357 c -2.19179,2.2e-4 -3.96853,1.77696 -3.96875,3.96875 v 59.46045 c -0.002,3.33572 -3.86802,5.18189 -6.46317,3.08612 L 6.7461621,167.79495 c -1.9655102,-1.58863 -1.9655102,-4.58516 0,-6.17379 L 108.56165,77.007725 c 0.72802,-0.588163 1.64034,-0.899858 2.57607,-0.880565 z"
+       style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-feature-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:7.9375;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       id="path841" />
+  </g>
+</svg>

icon-font/U+2B62 Rightwards Triangle-Headed Arrow.svg

@@ -0,0 +1,123 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   inkscape:version="1.0 (4035a4fb49, 2020-05-01)"
+   sodipodi:docname="U+2B95 Rightwards Black Arrow .svg"
+   width="1000"
+   height="1000"
+   viewBox="0 0 264.58333 264.58334"
+   version="1.1"
+   id="svg964">
+  <sodipodi:namedview
+     inkscape:document-rotation="0"
+     inkscape:snap-global="false"
+     inkscape:current-layer="layer1"
+     inkscape:window-maximized="1"
+     inkscape:window-y="27"
+     inkscape:window-x="0"
+     inkscape:cy="398.16955"
+     inkscape:cx="369.80754"
+     inkscape:zoom="0.5710432"
+     inkscape:guide-bbox="true"
+     showguides="true"
+     showgrid="false"
+     id="namedview8"
+     inkscape:window-height="1016"
+     inkscape:window-width="1920"
+     inkscape:pageshadow="2"
+     inkscape:pageopacity="0"
+     guidetolerance="10"
+     gridtolerance="10"
+     objecttolerance="10"
+     borderopacity="1"
+     bordercolor="#666666"
+     pagecolor="#ffffff">
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide815"
+       orientation="0,1"
+       position="0,52.916667" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide817"
+       orientation="1,0"
+       position="5.2916667,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide819"
+       orientation="0,1"
+       position="0,259.29167" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide821"
+       orientation="1,0"
+       position="259.29167,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide823"
+       orientation="1,0"
+       position="29.104167,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide825"
+       orientation="1,0"
+       position="235.47917,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide827"
+       orientation="0,1"
+       position="132.29167,161.39583" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide829"
+       orientation="1,0"
+       position="132.29167,161.39583" />
+  </sodipodi:namedview>
+  <defs
+     id="defs958" />
+  <metadata
+     id="metadata961">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(0,-32.41665)">
+    <path
+       sodipodi:nodetypes="cccccccccccccccc"
+       transform="matrix(0.26458333,0,0,0.26458333,0,32.41665)"
+       d="m 579.87305,165.20508 c -8.16257,0.16955 -14.69235,6.83564 -14.69141,15 V 404.9375 c -8.3e-4,8.28393 -6.71607,14.99917 -15,15 H 34.925781 c -8.283925,8.3e-4 -14.999164,6.71607 -15,15 v 130.13086 c 8.36e-4,8.28393 6.716075,14.99921 15,15 H 550.18164 c 8.28393,8.3e-4 14.99917,6.71607 15,15 v 224.73242 c 0.008,12.60745 14.61929,19.58508 24.42774,11.66406 L 974.42383,511.66602 c 7.4287,-6.00428 7.4287,-17.32972 0,-23.33399 L 589.60938,168.5332 c -2.75158,-2.22298 -6.19972,-3.40104 -9.73633,-3.32812 z"
+       style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-feature-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:30;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       id="path841" />
+  </g>
+</svg>

icon-font/U+2B70 Leftwards Triangle-Headed Arrow To Bar.svg

@@ -0,0 +1,122 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   id="svg964"
+   version="1.1"
+   viewBox="0 0 264.58333 264.58334"
+   height="1000"
+   width="1000"
+   sodipodi:docname="U+2B70 Leftwards Triangle-Headed Arrow To Bar.svg"
+   inkscape:version="1.1.1 (3bf5ae0d25, 2021-09-20)"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:dc="http://purl.org/dc/elements/1.1/">
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1920"
+     inkscape:window-height="1011"
+     id="namedview8"
+     showgrid="false"
+     showguides="true"
+     inkscape:guide-bbox="true"
+     inkscape:zoom="0.78434916"
+     inkscape:cx="345.50939"
+     inkscape:cy="525.27627"
+     inkscape:window-x="0"
+     inkscape:window-y="32"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="layer1"
+     inkscape:snap-global="true"
+     inkscape:pagecheckerboard="0">
+    <sodipodi:guide
+       position="0,52.916667"
+       orientation="0,1"
+       id="guide815"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="5.2916667,0"
+       orientation="1,0"
+       id="guide817"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="0,259.29167"
+       orientation="0,1"
+       id="guide819"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="259.29167,0"
+       orientation="1,0"
+       id="guide821"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="29.104167,0"
+       orientation="1,0"
+       id="guide823"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="235.47917,0"
+       orientation="1,0"
+       id="guide825"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="132.29167,161.39583"
+       orientation="0,1"
+       id="guide827"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="132.29167,161.39583"
+       orientation="1,0"
+       id="guide829"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+  </sodipodi:namedview>
+  <defs
+     id="defs958" />
+  <metadata
+     id="metadata961">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     transform="translate(0,-32.41665)"
+     id="layer1"
+     inkscape:groupmode="layer">
+    <path
+       id="path832-3"
+       style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-feature-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:30;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       d="M 35.107422 165.20508 C 26.823491 165.20591 20.108216 171.92115 20.107422 180.20508 L 20.107422 819.80078 C 20.108216 828.08471 26.823491 834.79995 35.107422 834.80078 L 165.23828 834.80078 C 173.52221 834.79995 180.23745 828.08471 180.23828 819.80078 L 180.23828 519.27539 L 555.63672 831.46484 C 565.44512 839.38586 580.05807 832.40823 580.06445 819.80078 L 580.06445 595.06836 C 580.06528 586.78443 586.78052 580.06919 595.06445 580.06836 L 964.99609 580.06836 C 973.28002 580.06757 979.99526 573.35229 979.99609 565.06836 L 979.99609 434.9375 C 979.99526 426.65357 973.28002 419.93833 964.99609 419.9375 L 595.06445 419.9375 C 586.78052 419.93667 580.06528 413.22143 580.06445 404.9375 L 580.06445 180.20508 C 580.06347 171.74797 573.07454 164.96209 564.62109 165.21094 C 561.34398 165.30679 558.18786 166.474 555.63672 168.5332 L 180.23828 480.72266 L 180.23828 180.20508 C 180.23745 171.92115 173.52221 165.20591 165.23828 165.20508 L 35.107422 165.20508 z "
+       transform="matrix(0.26458333,0,0,0.26458333,0,32.41665)" />
+  </g>
+</svg>

icon-font/U+2B72 Rightwards Triangle-Headed Arrow To Bar.svg

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   id="svg964"
+   version="1.1"
+   viewBox="0 0 264.58333 264.58334"
+   height="1000"
+   width="1000"
+   sodipodi:docname="U+2B72 Rightwards Triangle-Headed Arrow To Bar.svg"
+   inkscape:version="1.1.1 (3bf5ae0d25, 2021-09-20)"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:dc="http://purl.org/dc/elements/1.1/">
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1920"
+     inkscape:window-height="1011"
+     id="namedview8"
+     showgrid="false"
+     showguides="true"
+     inkscape:guide-bbox="true"
+     inkscape:zoom="0.78434916"
+     inkscape:cx="345.50939"
+     inkscape:cy="326.38525"
+     inkscape:window-x="0"
+     inkscape:window-y="32"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="layer1"
+     inkscape:snap-global="true"
+     inkscape:pagecheckerboard="0">
+    <sodipodi:guide
+       position="0,52.916667"
+       orientation="0,1"
+       id="guide815"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="5.2916667,0"
+       orientation="1,0"
+       id="guide817"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="0,259.29167"
+       orientation="0,1"
+       id="guide819"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="259.29167,0"
+       orientation="1,0"
+       id="guide821"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="29.104167,0"
+       orientation="1,0"
+       id="guide823"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="235.47917,0"
+       orientation="1,0"
+       id="guide825"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="132.29167,161.39583"
+       orientation="0,1"
+       id="guide827"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+    <sodipodi:guide
+       position="132.29167,161.39583"
+       orientation="1,0"
+       id="guide829"
+       inkscape:locked="false"
+       inkscape:label=""
+       inkscape:color="rgb(0,0,255)" />
+  </sodipodi:namedview>
+  <defs
+     id="defs958" />
+  <metadata
+     id="metadata961">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     transform="translate(0,-32.41665)"
+     id="layer1"
+     inkscape:groupmode="layer">
+    <path
+       id="path832-3"
+       style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-feature-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:7.9375;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       d="m 255.32188,76.12716 c 2.19179,2.2e-4 3.96854,1.77696 3.96875,3.96875 v 169.22636 c -2.1e-4,2.19179 -1.77696,3.96853 -3.96875,3.96875 h -34.43046 c -2.19179,-2.2e-4 -3.96853,-1.77696 -3.96875,-3.96875 v -79.51401 l -99.32417,82.60013 c -2.59514,2.09577 -6.46148,0.2496 -6.46317,-3.08612 v -59.46045 c -2.2e-4,-2.19179 -1.77696,-3.96853 -3.96875,-3.96875 H 9.2888386 c -2.1917898,-2.1e-4 -3.9685303,-1.77696 -3.9687499,-3.96875 v -34.43046 c 2.196e-4,-2.19179 1.7769601,-3.96853 3.9687499,-3.96875 H 107.16658 c 2.19179,-2.2e-4 3.96853,-1.77696 3.96875,-3.96875 V 80.09591 c 2.6e-4,-2.23761 1.84942,-4.033041 4.08606,-3.967199 0.86707,0.02536 1.70212,0.334184 2.37711,0.879014 l 99.32417,82.600125 V 80.09591 c 2.2e-4,-2.19179 1.77696,-3.96853 3.96875,-3.96875 z" />
+  </g>
+</svg>

icon-font/U+2B82 Rightwards Triangle-Headed Arrow Over Leftwards Triangle-Headed Arrow.svg

@@ -0,0 +1,134 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   inkscape:version="1.1.1 (3bf5ae0d25, 2021-09-20)"
+   sodipodi:docname="U+2B82 Rightwards Triangle-Headed Arrow Over Leftwards Triangle-Headed Arrow.svg"
+   width="1000"
+   height="1000"
+   viewBox="0 0 264.58333 264.58334"
+   version="1.1"
+   id="svg964"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:dc="http://purl.org/dc/elements/1.1/">
+  <sodipodi:namedview
+     inkscape:document-rotation="0"
+     inkscape:snap-global="true"
+     inkscape:current-layer="layer1"
+     inkscape:window-maximized="1"
+     inkscape:window-y="32"
+     inkscape:window-x="0"
+     inkscape:cy="440.81976"
+     inkscape:cx="627.83421"
+     inkscape:zoom="0.59888422"
+     inkscape:guide-bbox="true"
+     showguides="true"
+     showgrid="false"
+     id="namedview8"
+     inkscape:window-height="1011"
+     inkscape:window-width="1920"
+     inkscape:pageshadow="2"
+     inkscape:pageopacity="0"
+     guidetolerance="10"
+     gridtolerance="10"
+     objecttolerance="10"
+     borderopacity="1"
+     bordercolor="#666666"
+     pagecolor="#ffffff"
+     inkscape:pagecheckerboard="0"
+     inkscape:snap-page="false"
+     inkscape:snap-to-guides="true"
+     inkscape:snap-grids="false"
+     inkscape:snap-others="true"
+     inkscape:snap-nodes="true"
+     inkscape:snap-bbox="true">
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide815"
+       orientation="0,1"
+       position="0,52.916667" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide817"
+       orientation="1,0"
+       position="5.2916667,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide819"
+       orientation="0,1"
+       position="0,259.29167" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide821"
+       orientation="1,0"
+       position="259.29167,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide823"
+       orientation="1,0"
+       position="29.104167,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide825"
+       orientation="1,0"
+       position="235.47917,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide827"
+       orientation="0,1"
+       position="132.29167,161.39583" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide829"
+       orientation="1,0"
+       position="132.29167,161.39583" />
+  </sodipodi:namedview>
+  <defs
+     id="defs958" />
+  <metadata
+     id="metadata961">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(0,-32.41665)">
+    <path
+       sodipodi:nodetypes="cccccccccccccccc"
+       d="m 174.5914,50.361898 c -2.15968,0.04486 -3.88735,1.808597 -3.8871,3.96875 v 48.877122 c -2.2e-4,2.19179 -1.77696,3.96853 -3.96875,3.96875 H 9.2407794 c -2.1917884,2.2e-4 -3.9685287,1.77696 -3.9687499,3.96875 v 34.43045 c 2.212e-4,2.19179 1.7769615,3.96854 3.9687499,3.96875 H 166.73555 c 2.19179,2.2e-4 3.96853,1.77696 3.96875,3.96875 v 48.87712 c 0.002,3.33572 3.86802,5.18189 6.46317,3.08612 l 80.64883,-74.03011 c 1.96551,-1.58863 1.96551,-4.58515 0,-6.17378 L 177.16747,51.242464 c -0.72802,-0.588164 -1.64034,-0.899859 -2.57607,-0.880566 z"
+       style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-feature-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:7.9375;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       id="path841" />
+    <path
+       id="path16"
+       style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-feature-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:30;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       d="M 181.25391 482.71289 L 25.498047 625.6875 C 18.069348 631.69177 18.069348 643.01721 25.498047 649.02148 L 330.3125 928.82031 C 340.12095 936.74133 354.73268 929.7637 354.74023 917.15625 L 354.74023 732.42383 C 354.74107 724.1399 361.4563 717.42466 369.74023 717.42383 L 964.99609 717.42383 C 973.28002 717.42303 979.99526 710.70776 979.99609 702.42383 L 979.99609 572.29297 C 979.99526 564.00904 973.28002 557.2938 964.99609 557.29297 L 834.09375 557.29297 C 808.85644 580.47789 783.62321 603.66677 758.38086 626.84766 C 738.58721 644.94751 718.93574 663.20661 699.09375 681.25 C 689.39662 689.8341 677.42827 696.51296 664.28516 697.35156 C 637.29619 699.42218 609.8368 678.92 606.08203 651.73828 C 605.3507 620.26206 605.20414 588.77752 605.19727 557.29297 L 369.74023 557.29297 C 361.4563 557.29214 354.74107 550.5769 354.74023 542.29297 L 354.74023 482.73242 C 296.9114 482.72628 239.08275 482.71891 181.25391 482.71289 z "
+       transform="matrix(0.26458333,0,0,0.26458333,0,32.41665)" />
+  </g>
+</svg>

icon-font/U+2BA0 Downwards Triangle-Headed Arrow with Long Tip Leftwards.svg

@@ -0,0 +1,127 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   inkscape:version="1.1.1 (3bf5ae0d25, 2021-09-20)"
+   sodipodi:docname="U+2190 Leftwards Arrow (Kopie).svg"
+   width="1000"
+   height="1000"
+   viewBox="0 0 264.58333 264.58334"
+   version="1.1"
+   id="svg964"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:dc="http://purl.org/dc/elements/1.1/">
+  <sodipodi:namedview
+     inkscape:document-rotation="0"
+     inkscape:snap-global="true"
+     inkscape:current-layer="layer1"
+     inkscape:window-maximized="1"
+     inkscape:window-y="32"
+     inkscape:window-x="0"
+     inkscape:cy="443.69979"
+     inkscape:cx="850.06562"
+     inkscape:zoom="0.69641682"
+     inkscape:guide-bbox="true"
+     showguides="true"
+     showgrid="false"
+     id="namedview8"
+     inkscape:window-height="1011"
+     inkscape:window-width="1920"
+     inkscape:pageshadow="2"
+     inkscape:pageopacity="0"
+     guidetolerance="10"
+     gridtolerance="10"
+     objecttolerance="10"
+     borderopacity="1"
+     bordercolor="#666666"
+     pagecolor="#ffffff"
+     inkscape:pagecheckerboard="0"
+     inkscape:snap-bbox="true"
+     inkscape:bbox-paths="false"
+     inkscape:bbox-nodes="true">
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide815"
+       orientation="0,1"
+       position="0,52.916667" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide817"
+       orientation="1,0"
+       position="5.2916667,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide819"
+       orientation="0,1"
+       position="0,259.29167" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide821"
+       orientation="1,0"
+       position="259.29167,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide823"
+       orientation="1,0"
+       position="29.104167,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide825"
+       orientation="1,0"
+       position="235.47917,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide827"
+       orientation="0,1"
+       position="132.29167,161.39583" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide829"
+       orientation="1,0"
+       position="132.29167,161.39583" />
+  </sodipodi:namedview>
+  <defs
+     id="defs958" />
+  <metadata
+     id="metadata961">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(0,-32.41665)">
+    <path
+       id="path841"
+       style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;font-variant-ligatures:normal;font-variant-position:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-alternates:normal;font-feature-settings:normal;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;writing-mode:lr-tb;direction:ltr;text-orientation:mixed;dominant-baseline:auto;baseline-shift:baseline;text-anchor:start;white-space:normal;shape-padding:0;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;vector-effect:none;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:30;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       d="m 834.86914,20 c -8.28393,8.31e-4 -14.99921,6.716069 -15,15 v 369.9375 c -8.7e-4,8.28393 -6.71607,14.99917 -15,15 H 449.74023 c -8.28393,-8.3e-4 -14.99916,-6.71607 -15,-15 V 180.20508 c 9.5e-4,-8.16436 -6.52883,-14.83045 -14.6914,-15 -3.53662,-0.0729 -6.98476,1.10514 -9.73633,3.32812 L 25.498047,488.33203 c -7.4287,6.00427 -7.4287,17.32971 0,23.33399 L 410.3125,831.46484 c 9.80844,7.92102 24.42018,0.94339 24.42773,-11.66406 V 595.06836 c 8.4e-4,-8.28393 6.71607,-14.99917 15,-15 h 515.25586 c 8.28393,-7.9e-4 14.99917,-6.71607 15,-15 L 980,35 c -8.3e-4,-8.283931 -6.71607,-14.999169 -15,-15 z"
+       transform="matrix(0.26458333,0,0,0.26458333,0,32.41665)"
+       sodipodi:nodetypes="cccccccccccccccccccc" />
+  </g>
+</svg>

icon-font/U+2BC7 Black Medium Left-Pointing Triangle Centred.svg

@@ -0,0 +1,159 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   inkscape:version="1.1.1 (3bf5ae0d25, 2021-09-20)"
+   sodipodi:docname="U+2B60 Leftwards Triangle-Headed Arrow (Kopie).svg"
+   width="1000"
+   height="1000"
+   viewBox="0 0 264.58333 264.58334"
+   version="1.1"
+   id="svg964"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:dc="http://purl.org/dc/elements/1.1/">
+  <sodipodi:namedview
+     inkscape:document-rotation="0"
+     inkscape:snap-global="true"
+     inkscape:current-layer="layer1"
+     inkscape:window-maximized="1"
+     inkscape:window-y="32"
+     inkscape:window-x="0"
+     inkscape:cy="437.77147"
+     inkscape:cx="266.98483"
+     inkscape:zoom="0.71726922"
+     inkscape:guide-bbox="true"
+     showguides="true"
+     showgrid="false"
+     id="namedview8"
+     inkscape:window-height="1011"
+     inkscape:window-width="1920"
+     inkscape:pageshadow="2"
+     inkscape:pageopacity="0"
+     guidetolerance="10"
+     gridtolerance="10"
+     objecttolerance="10"
+     borderopacity="1"
+     bordercolor="#666666"
+     pagecolor="#ffffff"
+     inkscape:pagecheckerboard="0"
+     inkscape:snap-bbox="false">
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide815"
+       orientation="0,1"
+       position="0,52.916667" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide817"
+       orientation="1,0"
+       position="5.2916667,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide819"
+       orientation="0,1"
+       position="0,259.29167" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide821"
+       orientation="1,0"
+       position="259.29167,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide823"
+       orientation="1,0"
+       position="29.104167,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide825"
+       orientation="1,0"
+       position="235.47917,0" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide827"
+       orientation="0,1"
+       position="132.29167,161.39583" />
+    <sodipodi:guide
+       inkscape:color="rgb(0,0,255)"
+       inkscape:label=""
+       inkscape:locked="false"
+       id="guide829"
+       orientation="1,0"
+       position="132.29167,161.39583" />
+  </sodipodi:namedview>
+  <defs
+     id="defs958">
+    <inkscape:path-effect
+       effect="fillet_chamfer"
+       id="path-effect6088"
+       is_visible="true"
+       lpeversion="1"
+       satellites_param="F,0,0,1,0,38,0,4 @ F,0,0,1,0,38,0,4 @ F,0,0,1,0,38,0,4"
+       unit="px"
+       method="auto"
+       mode="F"
+       radius="38"
+       chamfer_steps="4"
+       flexible="false"
+       use_knot_distance="true"
+       apply_no_radius="true"
+       apply_with_radius="true"
+       only_selected="false"
+       hide_knots="false" />
+    <inkscape:path-effect
+       effect="fillet_chamfer"
+       id="path-effect5304"
+       is_visible="true"
+       lpeversion="1"
+       satellites_param="F,0,0,1,0,7,0,1 @ F,0,0,1,0,7,0,1 @ F,0,0,1,0,7,0,1"
+       unit="px"
+       method="auto"
+       mode="F"
+       radius="7"
+       chamfer_steps="1"
+       flexible="false"
+       use_knot_distance="true"
+       apply_no_radius="true"
+       apply_with_radius="true"
+       only_selected="false"
+       hide_knots="false" />
+  </defs>
+  <metadata
+     id="metadata961">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(0,-32.41665)">
+    <path
+       id="path2476"
+       inkscape:transform-center-x="26.879406"
+       d="M 204.85638,252.74656 55.648672,168.16048 a 3.9683103,3.9683103 90.000003 0 1 0,-6.90434 L 204.85639,76.670075 a 4.0782719,4.0782719 30.225521 0 1 6.08954,3.54783 l -1e-5,168.980825 a 4.078272,4.078272 149.77449 0 1 -6.08954,3.54783 z"
+       style="fill:#000000;stroke-width:0.273459" />
+  </g>
+</svg>

inputcontrol/controller.go

@@ -0,0 +1,93 @@
+/*
+ *    Copyright (c) 2018 Unrud <unrud@outlook.com>
+ *
+ *    This file is part of Remote-Touchpad.
+ *
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    Remote-Touchpad is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package inputcontrol
+
+import "sort"
+
+type (
+	PointerButton int
+	Key           int
+)
+
+const (
+	PointerButtonLeft PointerButton = iota
+	PointerButtonRight
+	PointerButtonMiddle
+	PointerButtonLimit
+)
+
+const (
+	KeyVolumeMute Key = iota
+	KeyVolumeDown
+	KeyVolumeUp
+	KeyMediaPlayPause
+	KeyMediaPrevTrack
+	KeyMediaNextTrack
+	KeyBrowserBack
+	KeyBrowserForward
+	KeySuper
+	KeyLeft
+	KeyRight
+	KeyUp
+	KeyDown
+	KeyHome
+	KeyEnd
+	KeyBackSpace
+	KeyDelete
+	KeyReturn
+	KeyLimit
+)
+
+type ControllerInfo struct {
+	Name string
+	Init func() (Controller, error)
+
+	priority int
+}
+
+var Controllers []ControllerInfo
+
+func RegisterController(name string, init func() (Controller, error), priority int) {
+	Controllers = append(Controllers, ControllerInfo{name, init, priority})
+	sort.SliceStable(Controllers, func(i, j int) bool {
+		return Controllers[i].priority < Controllers[j].priority
+	})
+}
+
+type UnsupportedPlatformError struct {
+	Err error
+}
+
+func (e *UnsupportedPlatformError) Error() string {
+	return e.Err.Error()
+}
+
+func (e *UnsupportedPlatformError) Unwrap() error {
+	return e.Err
+}
+
+type Controller interface {
+	Close() error
+	KeyboardText(text string) error
+	KeyboardKey(key Key) error
+	PointerButton(button PointerButton, press bool) error
+	PointerMove(deltaX, deltaY int) error
+	PointerScroll(deltaHorizontal, deltaVertical int, finish bool) error
+}

inputcontrol/controller_null.go

@@ -0,0 +1,66 @@
+//go:build null
+
+/*
+ *    Copyright (c) 2023 Unrud <unrud@outlook.com>
+ *
+ *    This file is part of Remote-Touchpad.
+ *
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    Remote-Touchpad is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package inputcontrol
+
+import (
+	"log"
+)
+
+type nullController struct{}
+
+func init() {
+	RegisterController("null", InitNullController, 1000)
+}
+
+func InitNullController() (Controller, error) {
+	return &nullController{}, nil
+}
+
+func (p *nullController) Close() error {
+	return nil
+}
+
+func (p *nullController) KeyboardText(text string) error {
+	log.Printf("KeyboardText(text: %#v)", text)
+	return nil
+}
+
+func (p *nullController) KeyboardKey(key Key) error {
+	log.Printf("KeyboardKey(key: %#v)", key)
+	return nil
+}
+
+func (p *nullController) PointerButton(button PointerButton, press bool) error {
+	log.Printf("PointerButton(button: %#v, press: %#v)", button, press)
+	return nil
+}
+
+func (p *nullController) PointerMove(deltaX, deltaY int) error {
+	log.Printf("PointerMove(deltaX: %#v, deltaY: %#v)", deltaX, deltaY)
+	return nil
+}
+
+func (p *nullController) PointerScroll(deltaHorizontal, deltaVertical int, finish bool) error {
+	log.Printf("PointerScroll(deltaHorizontal: %#v, deltaVertical: %#v, finish: %#v)",
+		deltaHorizontal, deltaVertical, finish)
+	return nil
+}

inputcontrol/controller_portal.go

@@ -0,0 +1,400 @@
+//go:build portal
+
+/*
+ *    Copyright (c) 2018 Unrud <unrud@outlook.com>
+ *
+ *    This file is part of Remote-Touchpad.
+ *
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    Remote-Touchpad is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package inputcontrol
+
+import (
+	"crypto/aes"
+	"crypto/cipher"
+	"crypto/hkdf"
+	"crypto/rand"
+	"crypto/sha256"
+	"errors"
+	"fmt"
+	"io"
+	"log"
+	"os"
+	"path/filepath"
+	"slices"
+
+	"github.com/godbus/dbus/v5"
+)
+
+const (
+	deviceKeyboard uint32 = 1
+	devicePointer  uint32 = 2
+
+	btnReleased uint32 = 0
+	btnPressed  uint32 = 1
+
+	untilRevoked uint32 = 2
+
+	// linux/input-event-codes.h
+	btnLeft   int32 = 0x110
+	btnRight  int32 = 0x111
+	btnMiddle int32 = 0x112
+)
+
+type portalController struct {
+	bus           *dbus.Conn
+	portalDesktop dbus.BusObject
+	sessionHandle dbus.ObjectPath
+}
+
+func init() {
+	RegisterController("RemoteDesktop portal", InitPortalController, 1)
+}
+
+func InitPortalController() (Controller, error) {
+	bus, err := dbus.SessionBusPrivate()
+	if err != nil {
+		return nil, &UnsupportedPlatformError{err}
+	}
+	cleanupBus := true
+	defer func() {
+		if cleanupBus {
+			bus.Close()
+		}
+	}()
+	err = bus.Auth(nil)
+	if err != nil {
+		return nil, &UnsupportedPlatformError{err}
+	}
+	err = bus.Hello()
+	if err != nil {
+		return nil, &UnsupportedPlatformError{err}
+	}
+	portalDesktop := bus.Object("org.freedesktop.portal.Desktop",
+		"/org/freedesktop/portal/desktop")
+	remoteDesktopVersionV, err := portalDesktop.GetProperty(
+		"org.freedesktop.portal.RemoteDesktop.version")
+	if err != nil {
+		return nil, &UnsupportedPlatformError{
+			fmt.Errorf("getting 'version' failed: %w", err),
+		}
+	}
+	remoteDesktopVersion, ok := remoteDesktopVersionV.Value().(uint32)
+	if !ok {
+		return nil, &UnsupportedPlatformError{
+			errors.New("unexpected 'version' type"),
+		}
+	}
+	restoreTokenStore, err := func() (*secretStore, error) {
+		if remoteDesktopVersion < 2 {
+			return nil, nil
+		}
+		cacheDirectory, err := os.UserCacheDir()
+		if err != nil {
+			return nil, err
+		}
+		if err := os.MkdirAll(cacheDirectory, 0o700); err != nil {
+			return nil, err
+		}
+		secret, err := retrieveSecret(bus)
+		if err != nil {
+			return nil, err
+		}
+		return newSecretStore(secret,
+			filepath.Join(cacheDirectory, "remote-touchpad.portal-restore-token.bin"))
+	}()
+	if err != nil {
+		log.Printf("Skipping restore token: %v", err)
+	}
+	availableDeviceTypesV, err := portalDesktop.GetProperty(
+		"org.freedesktop.portal.RemoteDesktop.AvailableDeviceTypes")
+	if err != nil {
+		return nil, &UnsupportedPlatformError{
+			fmt.Errorf("getting 'AvailableDeviceTypes' failed: %w", err),
+		}
+	}
+	availableDeviceTypes, ok := availableDeviceTypesV.Value().(uint32)
+	if !ok {
+		return nil, &UnsupportedPlatformError{
+			errors.New("unexpected 'AvailableDeviceTypes' return type"),
+		}
+	}
+	if availableDeviceTypes&deviceKeyboard == 0 ||
+		availableDeviceTypes&devicePointer == 0 {
+		return nil, &UnsupportedPlatformError{
+			errors.New("keyboard or pointer source type not supported"),
+		}
+	}
+	createSessionResults, err := checkResponse(getResponse(bus, portalDesktop,
+		"org.freedesktop.portal.RemoteDesktop.CreateSession", 0,
+		map[string]dbus.Variant{"session_handle_token": dbus.MakeVariant("t")},
+	))
+	if err != nil {
+		return nil, &UnsupportedPlatformError{
+			fmt.Errorf("calling 'CreateSession' failed: %w", err),
+		}
+	}
+	sessionHandleString, ok := createSessionResults["session_handle"].Value().(string)
+	if !ok {
+		return nil, &UnsupportedPlatformError{
+			errors.New("unexpected 'session_handle' type in 'CreateSession' return value"),
+		}
+	}
+	sessionHandle := dbus.ObjectPath(sessionHandleString)
+	selectDevicesOptions := map[string]dbus.Variant{
+		"types": dbus.MakeVariant(deviceKeyboard | devicePointer),
+	}
+	if restoreTokenStore != nil {
+		if restoreToken, err := restoreTokenStore.Load(); err != nil {
+			if !errors.Is(err, os.ErrNotExist) {
+				log.Printf("Failed to load restore token: %v", err)
+			}
+		} else if len(restoreToken) > 0 {
+			selectDevicesOptions["restore_token"] = dbus.MakeVariant(string(restoreToken))
+		}
+		selectDevicesOptions["persist_mode"] = dbus.MakeVariant(untilRevoked)
+	}
+	_, err = checkResponse(getResponse(bus, portalDesktop,
+		"org.freedesktop.portal.RemoteDesktop.SelectDevices", 0,
+		sessionHandle, selectDevicesOptions,
+	))
+	if err != nil {
+		return nil, &UnsupportedPlatformError{
+			fmt.Errorf("calling 'SelectDevices' failed: %w", err),
+		}
+	}
+	startResponseStatus, startResults, err := getResponse(bus, portalDesktop,
+		"org.freedesktop.portal.RemoteDesktop.Start", 0,
+		sessionHandle, "", map[string]dbus.Variant{},
+	)
+	if err != nil {
+		return nil, &UnsupportedPlatformError{
+			fmt.Errorf("calling 'Start' failed: %w", err),
+		}
+	}
+	if startResponseStatus != 0 {
+		return nil, errors.New("keyboard or pointer access denied")
+	}
+	if restoreToken, _ := startResults["restore_token"].Value().(string); restoreTokenStore != nil {
+		if err := restoreTokenStore.Store([]byte(restoreToken)); err != nil {
+			log.Printf("Failed to store restore token: %v", err)
+		}
+	}
+	devices, ok := startResults["devices"].Value().(uint32)
+	if !ok {
+		return nil, &UnsupportedPlatformError{
+			errors.New("unexpected 'devices' type in 'Start' return value"),
+		}
+	}
+	if devices&deviceKeyboard == 0 || devices&devicePointer == 0 {
+		return nil, errors.New("keyboard or pointer access denied")
+	}
+	cleanupBus = false
+	return &portalController{
+		bus: bus, portalDesktop: portalDesktop,
+		sessionHandle: sessionHandle,
+	}, nil
+}
+
+func retrieveSecret(bus *dbus.Conn) ([]byte, error) {
+	portalDesktop := bus.Object("org.freedesktop.portal.Desktop",
+		"/org/freedesktop/portal/desktop")
+	secretReader, secretWriter, err := os.Pipe()
+	if err != nil {
+		return nil, err
+	}
+	defer secretReader.Close()
+	defer secretWriter.Close()
+	if _, err := checkResponse(getResponse(bus, portalDesktop,
+		"org.freedesktop.portal.Secret.RetrieveSecret", 0,
+		dbus.UnixFD(secretWriter.Fd()), map[string]dbus.Variant{},
+	)); err != nil {
+		return nil, fmt.Errorf("calling 'RetrieveSecret' failed: %w", err)
+	}
+	if err := secretWriter.Close(); err != nil {
+		return nil, err
+	}
+	secret, err := io.ReadAll(secretReader)
+	if err != nil {
+		return nil, err
+	}
+	if len(secret) < 16 {
+		return nil, fmt.Errorf("'RetrieveSecret' returned too few bytes (%d)", len(secret))
+	}
+	return secret, err
+}
+
+type secretStore struct {
+	aesgcm   cipher.AEAD
+	filename string
+}
+
+func newSecretStore(key []byte, filename string) (*secretStore, error) {
+	derivedKey, err := hkdf.Key(sha256.New, key, nil, "", 32)
+	if err != nil {
+		return nil, err
+	}
+	block, err := aes.NewCipher(derivedKey)
+	if err != nil {
+		return nil, err
+	}
+	aesgcm, err := cipher.NewGCM(block)
+	if err != nil {
+		return nil, err
+	}
+	return &secretStore{
+		aesgcm:   aesgcm,
+		filename: filename,
+	}, nil
+}
+
+func (s *secretStore) Load() ([]byte, error) {
+	data, err := os.ReadFile(s.filename)
+	if err != nil {
+		return nil, err
+	}
+	if len(data) < s.aesgcm.NonceSize() {
+		return nil, errors.New("invalid ciphertext")
+	}
+	nonce := data[:s.aesgcm.NonceSize()]
+	ciphertext := data[len(nonce):]
+	return s.aesgcm.Open(nil, nonce, ciphertext, nil)
+}
+
+func (s *secretStore) Store(data []byte) error {
+	nonce := make([]byte, s.aesgcm.NonceSize())
+	if _, err := io.ReadFull(rand.Reader, nonce); err != nil {
+		return err
+	}
+	ciphertext := s.aesgcm.Seal(nil, nonce, data, nil)
+	return os.WriteFile(s.filename, slices.Concat(nonce, ciphertext), 0o600)
+}
+
+func getResponse(bus *dbus.Conn, object dbus.BusObject, method string,
+	flags dbus.Flags, args ...interface{},
+) (uint32, map[string]dbus.Variant, error) {
+	ch := make(chan *dbus.Signal, 512)
+	bus.Signal(ch)
+	defer bus.RemoveSignal(ch)
+	var requestPath dbus.ObjectPath
+	if err := object.Call(method, flags, args...).Store(&requestPath); err != nil {
+		return 0, nil, err
+	}
+	for {
+		s := <-ch
+		if s.Path == requestPath && s.Name == "org.freedesktop.portal.Request.Response" {
+			if len(s.Body) != 2 {
+				return 0, nil, fmt.Errorf("unexpected 'Response' return length (%d)", len(s.Body))
+			}
+			responseStatus, ok := s.Body[0].(uint32)
+			if !ok {
+				return 0, nil, errors.New("unexpected 'Response' return type")
+			}
+			results, ok := s.Body[1].(map[string]dbus.Variant)
+			if !ok {
+				return 0, nil, errors.New("unexpected 'Response' return type")
+			}
+			return responseStatus, results, nil
+		}
+	}
+}
+
+func checkResponse(responseStatus uint32, results map[string]dbus.Variant, err error) (map[string]dbus.Variant, error) {
+	if err == nil && responseStatus != 0 {
+		err = fmt.Errorf("unexpected 'Response' status (%d)", responseStatus)
+	}
+	return results, err
+}
+
+func (p *portalController) Close() error {
+	return p.bus.Close()
+}
+
+func (p *portalController) keyboardKeys(keys []Keysym) error {
+	for _, keysym := range keys {
+		for _, state := range [...]uint32{btnPressed, btnReleased} {
+			if err := p.portalDesktop.Call(
+				"org.freedesktop.portal.RemoteDesktop.NotifyKeyboardKeysym", 0,
+				p.sessionHandle, map[string]dbus.Variant{}, keysym, state,
+			).Store(); err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
+func (p *portalController) KeyboardText(text string) error {
+	keys := make([]Keysym, 0, len(text))
+	for _, runeValue := range text {
+		keysym, err := RuneToKeysym(runeValue)
+		if err != nil {
+			return err
+		}
+		keys = append(keys, keysym)
+	}
+	return p.keyboardKeys(keys)
+}
+
+func (p *portalController) KeyboardKey(key Key) error {
+	keysym, err := KeyToKeysym(key)
+	if err != nil {
+		return err
+	}
+	keys := [...]Keysym{keysym}
+	return p.keyboardKeys(keys[:])
+}
+
+func (p *portalController) PointerButton(button PointerButton, press bool) error {
+	var btn int32
+	switch button {
+	case PointerButtonLeft:
+		btn = btnLeft
+	case PointerButtonMiddle:
+		btn = btnMiddle
+	case PointerButtonRight:
+		btn = btnRight
+	default:
+		return fmt.Errorf("unsupported pointer button: %#v", button)
+	}
+	state := btnReleased
+	if press {
+		state = btnPressed
+	}
+	if err := p.portalDesktop.Call("org.freedesktop.portal.RemoteDesktop.NotifyPointerButton", 0,
+		p.sessionHandle, map[string]dbus.Variant{}, btn, state,
+	).Store(); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (p *portalController) PointerMove(deltaX, deltaY int) error {
+	if err := p.portalDesktop.Call("org.freedesktop.portal.RemoteDesktop.NotifyPointerMotion", 0,
+		p.sessionHandle, map[string]dbus.Variant{}, float64(deltaX), float64(deltaY),
+	).Store(); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (p *portalController) PointerScroll(deltaHorizontal, deltaVertical int, finish bool) error {
+	if err := p.portalDesktop.Call("org.freedesktop.portal.RemoteDesktop.NotifyPointerAxis", 0,
+		p.sessionHandle, map[string]dbus.Variant{"finish": dbus.MakeVariant(finish)}, float64(deltaHorizontal), float64(deltaVertical),
+	).Store(); err != nil {
+		return err
+	}
+	return nil
+}

inputcontrol/controller_uinput.go

@@ -0,0 +1,200 @@
+//go:build uinput
+
+/*
+ *    Copyright (c) 2023 De_Coder github.com/ps100000
+ *    Copyright (c) 2023 Unrud <unrud@outlook.com>
+ *
+ *    This file is part of Remote-Touchpad.
+ *
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    Remote-Touchpad is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package inputcontrol
+
+import (
+	"errors"
+	"fmt"
+	"log"
+	"os"
+	"time"
+
+	"github.com/bendahl/uinput"
+)
+
+const shiftKeysDelay time.Duration = 50 * time.Millisecond
+
+type uinputController struct {
+	keymap   *Keymap
+	keyboard uinput.Keyboard
+	mouse    uinput.Mouse
+}
+
+func init() {
+	RegisterController("uinput", InitUinputController, 10)
+}
+
+func InitUinputController() (Controller, error) {
+	keymapName, keymapSet := os.LookupEnv("REMOTE_TOUCHPAD_UINPUT_KEYMAP")
+	if !keymapSet {
+		keymapName = "defkeymap"
+	}
+	keymap, err := LoadKeymap(keymapName)
+	if err != nil {
+		return nil, err
+	}
+	keyboard, err := uinput.CreateKeyboard("/dev/uinput", []byte("remote-touchpad-keyboard"))
+	if errors.Is(err, os.ErrNotExist) || errors.Is(err, os.ErrPermission) {
+		err = &UnsupportedPlatformError{err}
+	}
+	if err != nil {
+		return nil, err
+	}
+	mouse, err := uinput.CreateMouse("/dev/uinput", []byte("remote-touchpad-mouse"))
+	if errors.Is(err, os.ErrNotExist) || errors.Is(err, os.ErrPermission) {
+		err = &UnsupportedPlatformError{err}
+	}
+	if err != nil {
+		keyboard.Close()
+		return nil, err
+	}
+	if !keymapSet {
+		log.Print("Hint: Set the keyboard mapping with the REMOTE_TOUCHPAD_UINPUT_KEYMAP environment variable")
+	}
+	return &uinputController{keymap, keyboard, mouse}, nil
+}
+
+func (p *uinputController) Close() error {
+	return errors.Join(p.keyboard.Close(), p.mouse.Close())
+}
+
+func (p *uinputController) KeyboardText(text string) error {
+	var activeShiftKeys KeyCombo
+	updateShiftKeys := func(keyCombo KeyCombo) error {
+		if activeShiftKeys.ShiftKeys == keyCombo.ShiftKeys {
+			activeShiftKeys.Key = keyCombo.Key
+			return nil
+		}
+		if activeShiftKeys.Key != 0 {
+			time.Sleep(shiftKeysDelay)
+			activeShiftKeys.Key = 0
+		}
+		for i := range keyCombo.ShiftKeys {
+			if activeShiftKeys.ShiftKeys[i] != keyCombo.ShiftKeys[i] {
+				if activeShiftKeys.ShiftKeys[i] != 0 {
+					if err := p.keyboard.KeyUp(activeShiftKeys.ShiftKeys[i]); err != nil {
+						return err
+					}
+					activeShiftKeys.ShiftKeys[i] = 0
+				}
+				if keyCombo.ShiftKeys[i] != 0 {
+					if err := p.keyboard.KeyDown(keyCombo.ShiftKeys[i]); err != nil {
+						return err
+					}
+					activeShiftKeys.ShiftKeys[i] = keyCombo.ShiftKeys[i]
+				}
+			}
+		}
+		if keyCombo.Key != 0 {
+			activeShiftKeys.Key = keyCombo.Key
+			time.Sleep(shiftKeysDelay)
+		}
+		return nil
+	}
+	defer updateShiftKeys(KeyCombo{})
+	for _, runeValue := range text {
+		keyCombo, found := p.keymap.Get(runeValue)
+		if !found {
+			return fmt.Errorf("unsupported rune: %q", runeValue)
+		}
+		if err := updateShiftKeys(keyCombo); err != nil {
+			return err
+		}
+		if err := p.keyboard.KeyPress(keyCombo.Key); err != nil {
+			return err
+		}
+	}
+	return updateShiftKeys(KeyCombo{Key: 1})
+}
+
+func (p *uinputController) KeyboardKey(key Key) error {
+	var uinputKey int
+	switch key {
+	case KeyBackSpace:
+		uinputKey = uinput.KeyBackspace
+	case KeyReturn:
+		uinputKey = uinput.KeyEnter
+	case KeyDelete:
+		uinputKey = uinput.KeyDelete
+	case KeyHome:
+		uinputKey = uinput.KeyHome
+	case KeyLeft:
+		uinputKey = uinput.KeyLeft
+	case KeyUp:
+		uinputKey = uinput.KeyUp
+	case KeyRight:
+		uinputKey = uinput.KeyRight
+	case KeyDown:
+		uinputKey = uinput.KeyDown
+	case KeyEnd:
+		uinputKey = uinput.KeyEnd
+	case KeySuper:
+		uinputKey = uinput.KeyLeftmeta
+	case KeyVolumeMute:
+		uinputKey = uinput.KeyMute
+	case KeyVolumeDown:
+		uinputKey = uinput.KeyVolumedown
+	case KeyVolumeUp:
+		uinputKey = uinput.KeyVolumeup
+	case KeyMediaPlayPause:
+		uinputKey = uinput.KeyPlaypause
+	case KeyMediaPrevTrack:
+		uinputKey = uinput.KeyPrevioussong
+	case KeyMediaNextTrack:
+		uinputKey = uinput.KeyNextsong
+	case KeyBrowserBack:
+		uinputKey = uinput.KeyBack
+	case KeyBrowserForward:
+		uinputKey = uinput.KeyForward
+	default:
+		return fmt.Errorf("unsupported key: %#v", key)
+	}
+	return p.keyboard.KeyPress(uinputKey)
+}
+
+func (p *uinputController) PointerButton(button PointerButton, press bool) error {
+	switch {
+	case button == PointerButtonLeft && press:
+		return p.mouse.LeftPress()
+	case button == PointerButtonLeft && !press:
+		return p.mouse.LeftRelease()
+	case button == PointerButtonRight && press:
+		return p.mouse.RightPress()
+	case button == PointerButtonRight && !press:
+		return p.mouse.RightRelease()
+	case button == PointerButtonMiddle && press:
+		return p.mouse.MiddlePress()
+	case button == PointerButtonMiddle && !press:
+		return p.mouse.MiddleRelease()
+	default:
+		return fmt.Errorf("unsupported pointer button: %#v", button)
+	}
+}
+
+func (p *uinputController) PointerMove(deltaX, deltaY int) error {
+	return p.mouse.Move(int32(deltaX), int32(deltaY))
+}
+
+func (p *uinputController) PointerScroll(deltaHorizontal, deltaVertical int, finish bool) error {
+	return errors.Join(p.mouse.Wheel(false, int32(-deltaVertical)), p.mouse.Wheel(true, int32(deltaHorizontal)))
+}

inputcontrol/controller_windows.go

@@ -0,0 +1,244 @@
+//go:build windows
+
+/*
+ *    Copyright (c) 2018 Unrud <unrud@outlook.com>
+ *
+ *    This file is part of Remote-Touchpad.
+ *
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    Remote-Touchpad is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package inputcontrol
+
+import (
+	"fmt"
+	"syscall"
+	"unsafe"
+)
+
+const (
+	inputMouse    uintptr = 0x0
+	inputKeyboard uintptr = 0x1
+
+	keyeventfKeyup   uint32 = 0x2
+	keyeventfUnicode uint32 = 0x4
+
+	vkBack           uint16 = 0x8
+	vkReturn         uint16 = 0xD
+	vkEnd            uint16 = 0x23
+	vkHome           uint16 = 0x24
+	vkLeft           uint16 = 0x25
+	vkUp             uint16 = 0x26
+	vkRight          uint16 = 0x27
+	vkDown           uint16 = 0x28
+	vkDelete         uint16 = 0x2E
+	vkLwin           uint16 = 0x5B
+	vkBrowserBack    uint16 = 0xA6
+	vkBrowserForward uint16 = 0xA7
+	vkVolumeMute     uint16 = 0xAD
+	vkVolumeDown     uint16 = 0xAE
+	vkVolumeUp       uint16 = 0xAF
+	vkMediaNextTrack uint16 = 0xB0
+	vkMediaPrevTrack uint16 = 0xB1
+	vkMediaPlayPause uint16 = 0xB3
+
+	mouseeventfMove       uint32 = 0x1
+	mouseeventfLeftdown   uint32 = 0x2
+	mouseeventfLeftup     uint32 = 0x4
+	mouseeventfRightdown  uint32 = 0x8
+	mouseeventfRightup    uint32 = 0x10
+	mouseeventfMiddledown uint32 = 0x20
+	mouseeventfMiddleup   uint32 = 0x40
+	mouseeventfWheel      uint32 = 0x800
+	mouseeventfHwheel     uint32 = 0x1000
+
+	scrollMult int = 6
+)
+
+var (
+	user32DLL     = syscall.NewLazyDLL("user32.dll")
+	sendInputProc = user32DLL.NewProc("SendInput")
+)
+
+type mouseInput struct {
+	typ uintptr // HACK: padded uint32
+
+	dx, dy                   int32
+	mouseData, dwFlags, time uint32
+	dwExtraInfo              uintptr
+}
+
+type keybdInput struct {
+	typ uintptr // HACK: padded uint32
+
+	wVk, wScan    uint16
+	dwFlags, time uint32
+	dwExtraInfo   uintptr
+
+	padding [8]byte
+}
+
+type windowsController struct{}
+
+func init() {
+	RegisterController("Windows", InitWindowsController, 0)
+}
+
+func InitWindowsController() (Controller, error) {
+	p := &windowsController{}
+	if err := sendInputProc.Find(); err != nil {
+		return nil, &UnsupportedPlatformError{err}
+	}
+	return p, nil
+}
+
+func (p *windowsController) Close() error {
+	return nil
+}
+
+func (p *windowsController) sendInput(inputs []keybdInput) error {
+	if len(inputs) == 0 {
+		return nil
+	}
+	if sent, _, err := sendInputProc.Call(uintptr(len(inputs)),
+		uintptr(unsafe.Pointer(&inputs[0])), unsafe.Sizeof(inputs[0])); int(sent) != len(inputs) {
+		return err
+	}
+	return nil
+}
+
+func (p *windowsController) KeyboardText(text string) error {
+	inputs := make([]keybdInput, 0, len(text)*2)
+	for _, runeValue := range text {
+		in := keybdInput{typ: inputKeyboard, wScan: uint16(runeValue), dwFlags: keyeventfUnicode}
+		inputs = append(inputs, in)
+		in.dwFlags |= keyeventfKeyup
+		inputs = append(inputs, in)
+	}
+	if len(inputs) == 0 {
+		return nil
+	}
+	return p.sendInput(inputs)
+}
+
+func (p *windowsController) KeyboardKey(key Key) error {
+	input := keybdInput{typ: inputKeyboard}
+	switch key {
+	case KeyBackSpace:
+		input.wVk = vkBack
+	case KeyReturn:
+		input.wVk = vkReturn
+	case KeyEnd:
+		input.wVk = vkEnd
+	case KeyHome:
+		input.wVk = vkHome
+	case KeyLeft:
+		input.wVk = vkLeft
+	case KeyUp:
+		input.wVk = vkUp
+	case KeyRight:
+		input.wVk = vkRight
+	case KeyDown:
+		input.wVk = vkDown
+	case KeyDelete:
+		input.wVk = vkDelete
+	case KeySuper:
+		input.wVk = vkLwin
+	case KeyBrowserBack:
+		input.wVk = vkBrowserBack
+	case KeyBrowserForward:
+		input.wVk = vkBrowserForward
+	case KeyVolumeMute:
+		input.wVk = vkVolumeMute
+	case KeyVolumeDown:
+		input.wVk = vkVolumeDown
+	case KeyVolumeUp:
+		input.wVk = vkVolumeUp
+	case KeyMediaNextTrack:
+		input.wVk = vkMediaNextTrack
+	case KeyMediaPrevTrack:
+		input.wVk = vkMediaPrevTrack
+	case KeyMediaPlayPause:
+		input.wVk = vkMediaPlayPause
+	default:
+		return fmt.Errorf("key not mapped to virtual-key code: %#v", key)
+	}
+	inputs := [...]keybdInput{input, input}
+	inputs[1].dwFlags |= keyeventfKeyup
+	return p.sendInput(inputs[:])
+}
+
+func (p *windowsController) PointerButton(button PointerButton, press bool) error {
+	input := mouseInput{typ: inputMouse}
+	if button == PointerButtonLeft && press {
+		input.dwFlags = mouseeventfLeftdown
+	} else if button == PointerButtonLeft {
+		input.dwFlags = mouseeventfLeftup
+	} else if button == PointerButtonMiddle && press {
+		input.dwFlags = mouseeventfMiddledown
+	} else if button == PointerButtonMiddle {
+		input.dwFlags = mouseeventfMiddleup
+	} else if button == PointerButtonRight && press {
+		input.dwFlags = mouseeventfRightdown
+	} else if button == PointerButtonRight {
+		input.dwFlags = mouseeventfRightup
+	} else {
+		return fmt.Errorf("unsupported pointer button: %#v", button)
+	}
+	if sent, _, err := sendInputProc.Call(1, uintptr(unsafe.Pointer(&input)),
+		unsafe.Sizeof(input)); int(sent) != 1 {
+		return err
+	}
+	return nil
+}
+
+func (p *windowsController) PointerMove(deltaX, deltaY int) error {
+	input := mouseInput{
+		typ:     inputMouse,
+		dx:      int32(deltaX),
+		dy:      int32(deltaY),
+		dwFlags: mouseeventfMove,
+	}
+	if sent, _, err := sendInputProc.Call(1, uintptr(unsafe.Pointer(&input)),
+		unsafe.Sizeof(input)); int(sent) != 1 {
+		return err
+	}
+	return nil
+}
+
+func (p *windowsController) PointerScroll(deltaHorizontal, deltaVertical int, finish bool) error {
+	inputs := make([]mouseInput, 0, 2)
+	if deltaHorizontal != 0 {
+		inputs = append(inputs, mouseInput{
+			typ:       inputMouse,
+			dwFlags:   mouseeventfHwheel,
+			mouseData: uint32(deltaHorizontal * scrollMult),
+		})
+	}
+	if deltaVertical != 0 {
+		inputs = append(inputs, mouseInput{
+			typ:       inputMouse,
+			dwFlags:   mouseeventfWheel,
+			mouseData: uint32(-deltaVertical * scrollMult),
+		})
+	}
+	if len(inputs) == 0 {
+		return nil
+	}
+	if sent, _, err := sendInputProc.Call(uintptr(len(inputs)),
+		uintptr(unsafe.Pointer(&inputs[0])), unsafe.Sizeof(inputs[0])); int(sent) != len(inputs) {
+		return err
+	}
+	return nil
+}

inputcontrol/controller_x11.go

@@ -0,0 +1,397 @@
+//go:build x11
+
+/*
+ *    Copyright (c) 2018 Unrud <unrud@outlook.com>
+ *
+ *    This file is part of Remote-Touchpad.
+ *
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    Remote-Touchpad is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package inputcontrol
+
+// #cgo LDFLAGS: -lX11 -lXrandr -lXtst
+// #include <stdlib.h>
+// #include <X11/Xlib.h>
+// #include <X11/Intrinsic.h>
+// #include <X11/extensions/Xrandr.h>
+// #include <X11/extensions/XTest.h>
+// #include <X11/XKBlib.h>
+// Window MacroDefaultRootWindow(Display *dpy) {
+//     return DefaultRootWindow(dpy);
+// }
+import "C"
+
+import (
+	"errors"
+	"fmt"
+	"maps"
+	"slices"
+	"strings"
+	"sync"
+	"time"
+	"unsafe"
+)
+
+const (
+	keyboardMappingDelay time.Duration = 200 * time.Millisecond
+	scrollDiv            int           = 20
+)
+
+var modifierIndexes = [...]int{
+	C.ShiftMapIndex,
+	C.Mod1MapIndex,
+	C.Mod2MapIndex,
+	C.Mod3MapIndex,
+	C.Mod4MapIndex,
+	C.Mod5MapIndex,
+}
+
+type x11Controller struct {
+	display                          *C.Display
+	lock                             sync.Mutex
+	scrollHorizontal, scrollVertical int
+}
+
+func init() {
+	RegisterController("X11", InitX11Controller, 0)
+}
+
+func InitX11Controller() (Controller, error) {
+	display := C.XOpenDisplay(nil)
+	if display == nil {
+		return nil, &UnsupportedPlatformError{
+			errors.New("failed to connect to X server"),
+		}
+	}
+	p := &x11Controller{display: display}
+	if p.xIsXwayland() {
+		p.Close()
+		return nil, &UnsupportedPlatformError{
+			errors.New("X server is Xwayland"),
+		}
+	}
+	return p, nil
+}
+
+func (p *x11Controller) xIsXwayland() bool {
+	// Detection method from https://gitlab.freedesktop.org/xorg/app/xisxwayland/-/blob/xisxwayland-2/xisxwayland.c
+	var opcode, event, error, major, minor C.int
+	xwaylandExtensionName := C.CString("XWAYLAND")
+	defer C.free(unsafe.Pointer(xwaylandExtensionName))
+	if C.XQueryExtension(p.display, xwaylandExtensionName, &opcode, &event, &error) != 0 {
+		return true
+	}
+	if C.XRRQueryExtension(p.display, &event, &error) == 0 ||
+		C.XRRQueryVersion(p.display, &major, &minor) == 0 {
+		return false
+	}
+	resources := C.XRRGetScreenResourcesCurrent(p.display, C.MacroDefaultRootWindow(p.display))
+	if resources == nil {
+		return false
+	}
+	defer C.XRRFreeScreenResources(resources)
+	if resources.noutput < 1 {
+		return false
+	}
+	output := C.XRRGetOutputInfo(p.display, resources, *resources.outputs)
+	if output == nil {
+		return false
+	}
+	defer C.XRRFreeOutputInfo(output)
+	return strings.HasPrefix(C.GoString(output.name), "XWAYLAND")
+}
+
+func (p *x11Controller) Close() error {
+	p.lock.Lock()
+	defer p.lock.Unlock()
+	if p.display == nil {
+		return errors.New("X server connection closed")
+	}
+	C.XCloseDisplay(p.display)
+	p.display = nil
+	return nil
+}
+
+func (p *x11Controller) findEmptyKeycodeLocked() (keycode C.KeyCode, keysymsPerKeycode int, err error) {
+	var minKeycodes, maxKeycodes C.int
+	C.XDisplayKeycodes(p.display, &minKeycodes, &maxKeycodes)
+	var keysymsPerKeycodeC C.int
+	keysyms := C.XGetKeyboardMapping(
+		p.display,
+		C.KeyCode(minKeycodes),
+		maxKeycodes-minKeycodes+1,
+		&keysymsPerKeycodeC,
+	)
+	if keysyms == nil {
+		return 0, 0, errors.New("failed to get keyboard mapping")
+	}
+	defer C.XFree(unsafe.Pointer(keysyms))
+	keysymsPerKeycode = int(keysymsPerKeycodeC)
+keycodes:
+	for keycode := int(minKeycodes); keycode <= int(maxKeycodes); keycode++ {
+		for i := range keysymsPerKeycode {
+			keysymsIndex := (keycode-int(minKeycodes))*keysymsPerKeycode + i
+			keysym := *(*C.KeySym)(unsafe.Pointer(
+				uintptr(unsafe.Pointer(keysyms)) +
+					uintptr(keysymsIndex)*unsafe.Sizeof(*keysyms),
+			))
+			if keysym != 0 {
+				continue keycodes
+			}
+		}
+		return C.KeyCode(keycode), keysymsPerKeycode, nil
+	}
+	return 0, 0, errors.New("no empty keycode found")
+}
+
+func (p *x11Controller) changeKeyMappingLocked(
+	keycode C.KeyCode, keysymsPerKeycode int, keysym Keysym,
+) {
+	keycodeMapping := make([]C.KeySym, keysymsPerKeycode)
+	for i := range keycodeMapping {
+		keycodeMapping[i] = C.KeySym(keysym)
+	}
+	C.XChangeKeyboardMapping(
+		p.display,
+		C.int(keycode),
+		C.int(keysymsPerKeycode),
+		(*C.KeySym)(unsafe.Pointer(&keycodeMapping[0])),
+		1,
+	)
+	C.XSync(p.display, C.False)
+}
+
+func (p *x11Controller) getModKeycodesLocked() map[uint]C.KeyCode {
+	modKeymap := C.XGetModifierMapping(p.display)
+	defer C.XFreeModifiermap(modKeymap)
+	modKeycodes := make(map[uint]C.KeyCode)
+	for _, modIndex := range modifierIndexes {
+		for i := range int(modKeymap.max_keypermod) {
+			keycodeIndex := modIndex*int(modKeymap.max_keypermod) + i
+			keycode := *(*C.KeyCode)(unsafe.Pointer(
+				uintptr(unsafe.Pointer(modKeymap.modifiermap)) +
+					uintptr(keycodeIndex)*unsafe.Sizeof(*modKeymap.modifiermap),
+			))
+			if keycode != 0 {
+				modKeycodes[1<<modIndex] = keycode
+				break
+			}
+		}
+	}
+	return modKeycodes
+}
+
+func (p *x11Controller) findKeycodeLocked(
+	keyboard C.XkbDescPtr, modKeycodes map[uint]C.KeyCode, activeMods uint, keysym Keysym,
+) (keycode C.KeyCode, mods uint) {
+	keycode = C.XKeysymToKeycode(p.display, C.KeySym(keysym))
+	if keycode == 0 {
+		return 0, 0
+	}
+	for activeModBitmap := range uint(1) << len(modKeycodes) {
+		mods := activeMods
+		for i, mod := range slices.Sorted(maps.Keys(modKeycodes)) {
+			if activeModBitmap&(1<<i) != 0 {
+				mods ^= mod
+			}
+		}
+		var retMods C.uint
+		var retKeysym C.KeySym
+		C.XkbTranslateKeyCode(keyboard, keycode, C.uint(mods), &retMods, &retKeysym)
+		if retKeysym == C.KeySym(keysym) {
+			return keycode, mods
+		}
+	}
+	return 0, 0
+}
+
+func (p *x11Controller) sendModsLocked(
+	modKeycodes map[uint]C.KeyCode, mods uint, press bool,
+) {
+	var pressC C.int = C.False
+	if press {
+		pressC = C.True
+	}
+	for mod, keycode := range modKeycodes {
+		if mods&mod != 0 {
+			C.XTestFakeKeyEvent(p.display, C.uint(keycode), pressC, 0)
+		}
+	}
+}
+
+func (p *x11Controller) keyboardKeys(keys []Keysym) error {
+	p.lock.Lock()
+	defer p.lock.Unlock()
+	if p.display == nil {
+		return errors.New("X server connection closed")
+	}
+	if len(keys) == 0 {
+		return nil
+	}
+	rootWindow := C.XDefaultRootWindow(p.display)
+	modKeycodes := p.getModKeycodesLocked()
+	keyboard := C.XkbGetKeyboard(p.display,
+		C.XkbCompatMapMask|C.XkbGeometryMask, C.XkbUseCoreKbd)
+	defer C.XkbFreeKeyboard(keyboard, C.XkbAllComponentsMask, C.True)
+	var emptyKeycode C.KeyCode
+	var keysymsPerKeycode int
+	for _, keysym := range keys {
+		var root, child C.Window
+		var rootX, rootY, x, y C.int
+		var activeModsC C.uint
+		C.XQueryPointer(
+			p.display,
+			rootWindow,
+			&root, &child,
+			&rootX, &rootY,
+			&x, &y,
+			&activeModsC,
+		)
+		activeMods := uint(activeModsC)
+		keycode, mods := p.findKeycodeLocked(keyboard, modKeycodes, activeMods, keysym)
+		var pressMods, releaseMods uint
+		if keycode == 0 {
+			if emptyKeycode == 0 {
+				var err error
+				emptyKeycode, keysymsPerKeycode, err = p.findEmptyKeycodeLocked()
+				if err != nil {
+					return err
+				}
+				defer p.changeKeyMappingLocked(emptyKeycode, keysymsPerKeycode, 0)
+			}
+			keycode = emptyKeycode
+			p.changeKeyMappingLocked(keycode, keysymsPerKeycode, keysym)
+		} else {
+			pressMods = mods & ^activeMods
+			releaseMods = activeMods & ^mods
+		}
+		p.sendModsLocked(modKeycodes, releaseMods, false)
+		p.sendModsLocked(modKeycodes, pressMods, true)
+		C.XTestFakeKeyEvent(p.display, C.uint(keycode), C.True, 0)
+		C.XTestFakeKeyEvent(p.display, C.uint(keycode), C.False, 0)
+		p.sendModsLocked(modKeycodes, pressMods, false)
+		p.sendModsLocked(modKeycodes, releaseMods, true)
+		C.XSync(p.display, C.False)
+		if keycode == emptyKeycode {
+			// race condition!
+			time.Sleep(keyboardMappingDelay)
+		}
+	}
+	return nil
+}
+
+func (p *x11Controller) KeyboardText(text string) error {
+	keys := make([]Keysym, 0, len(text))
+	for _, runeValue := range text {
+		keysym, err := RuneToKeysym(runeValue)
+		if err != nil {
+			return err
+		}
+		keys = append(keys, keysym)
+	}
+	return p.keyboardKeys(keys)
+}
+
+func (p *x11Controller) KeyboardKey(key Key) error {
+	keysym, err := KeyToKeysym(key)
+	if err != nil {
+		return err
+	}
+	keys := [...]Keysym{keysym}
+	return p.keyboardKeys(keys[:])
+}
+
+func (p *x11Controller) sendButton(button uint, press bool) error {
+	p.lock.Lock()
+	defer p.lock.Unlock()
+	if p.display == nil {
+		return errors.New("X server connection closed")
+	}
+	if button == 0 || button > 9 {
+		return errors.New("unsupported pointer button")
+	}
+	var pressC C.int = C.False
+	if press {
+		pressC = C.True
+	}
+	C.XTestFakeButtonEvent(p.display, C.uint(button), pressC, 0)
+	C.XSync(p.display, C.False)
+	return nil
+}
+
+func (p *x11Controller) PointerButton(button PointerButton, press bool) error {
+	switch button {
+	case PointerButtonLeft:
+		return p.sendButton(1, press)
+	case PointerButtonRight:
+		return p.sendButton(3, press)
+	case PointerButtonMiddle:
+		return p.sendButton(2, press)
+	default:
+		return fmt.Errorf("unsupported pointer button: %#v", button)
+	}
+}
+
+func (p *x11Controller) PointerMove(deltaX, deltaY int) error {
+	p.lock.Lock()
+	defer p.lock.Unlock()
+	if p.display == nil {
+		return errors.New("X server connection closed")
+	}
+	C.XTestFakeRelativeMotionEvent(p.display, C.int(deltaX), C.int(deltaY), 0)
+	C.XSync(p.display, C.False)
+	return nil
+}
+
+func (p *x11Controller) PointerScroll(deltaHorizontal, deltaVertical int, finish bool) error {
+	p.lock.Lock()
+	stepsHorizontal := (p.scrollHorizontal + deltaHorizontal) / scrollDiv
+	stepsVertical := (p.scrollVertical + deltaVertical) / scrollDiv
+	if finish {
+		p.scrollHorizontal = 0
+		p.scrollVertical = 0
+	} else {
+		p.scrollHorizontal = (p.scrollHorizontal + deltaHorizontal) % scrollDiv
+		p.scrollVertical = (p.scrollVertical + deltaVertical) % scrollDiv
+	}
+	p.lock.Unlock()
+	var buttonHorizontal uint = 7
+	if stepsHorizontal < 0 {
+		buttonHorizontal = 6
+		stepsHorizontal = -stepsHorizontal
+	}
+	for range stepsHorizontal {
+		if err := p.sendButton(buttonHorizontal, true); err != nil {
+			return err
+		}
+		if err := p.sendButton(buttonHorizontal, false); err != nil {
+			return err
+		}
+	}
+	var buttonVertical uint = 5
+	if stepsVertical < 0 {
+		buttonVertical = 4
+		stepsVertical = -stepsVertical
+	}
+	for range stepsVertical {
+		if err := p.sendButton(buttonVertical, true); err != nil {
+			return err
+		}
+		if err := p.sendButton(buttonVertical, false); err != nil {
+			return err
+		}
+	}
+	return nil
+}

inputcontrol/keymap.go

@@ -0,0 +1,130 @@
+//go:build uinput
+
+/*
+ *    Copyright (c) 2023 Unrud <unrud@outlook.com>
+ *
+ *    This file is part of Remote-Touchpad.
+ *
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    Remote-Touchpad is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package inputcontrol
+
+import (
+	"fmt"
+	"os/exec"
+	"strings"
+	"unsafe"
+)
+
+const bkeymapFileSignature = "bkeymap"
+
+// uapi/linux/keyboard.h
+const (
+	nrKeys       = 128
+	maxNrKeymaps = 256
+	nrShift      = 9
+
+	ktLatin  = 0
+	ktShift  = 7
+	ktLetter = 11
+)
+
+type KeyCombo struct {
+	Key       int
+	ShiftKeys [nrShift]int
+}
+
+type Keymap struct {
+	keyComboMap map[rune]KeyCombo
+}
+
+func (keymap Keymap) Get(character rune) (keyCombo KeyCombo, found bool) {
+	keyCombo, found = keymap.keyComboMap[character]
+	return
+}
+
+func LoadKeymap(name string) (*Keymap, error) {
+	if len(name) == 0 || strings.HasPrefix(name, "-") {
+		return nil, fmt.Errorf("invalid keymap name: %#v", name)
+	}
+	bkeymap, err := exec.Command("loadkeys", "--bkeymap", name).Output()
+	if err != nil {
+		return nil, &UnsupportedPlatformError{err}
+	}
+	if !strings.HasPrefix(string(bkeymap), bkeymapFileSignature) {
+		return nil, fmt.Errorf("invalid bkeymap: signature not found")
+	}
+	bkeymapHeader := bkeymap[len(bkeymapFileSignature):]
+	var keymaps [][nrKeys]int
+	if len(bkeymapHeader) < maxNrKeymaps {
+		return nil, fmt.Errorf("invalid bkeymap: EOF")
+	}
+	currentBkeymap := bkeymapHeader[maxNrKeymaps:]
+	for keymapIndex := 0; keymapIndex < maxNrKeymaps; keymapIndex += 1 {
+		if bkeymapHeader[keymapIndex] == 0 {
+			continue
+		}
+		if len(currentBkeymap) < nrKeys*2 {
+			return nil, fmt.Errorf("invalid bkeymap: EOF")
+		}
+		for len(keymaps) <= keymapIndex {
+			keymaps = append(keymaps, [nrKeys]int{})
+		}
+		for key := 0; key < nrKeys; key += 1 {
+			var keysym uint16
+			copy(unsafe.Slice((*byte)(unsafe.Pointer(&keysym)), 2),
+				currentBkeymap[key*2:])
+			keymaps[keymapIndex][key] = int(keysym)
+		}
+		currentBkeymap = currentBkeymap[nrKeys*2:]
+	}
+	keymap := Keymap{keyComboMap: make(map[rune]KeyCombo)}
+	if len(keymaps) == 0 {
+		return &keymap, nil
+	}
+	var shiftKeys [nrShift]int
+	for key, keysym := range keymaps[0] {
+		keyType := keysym >> 8
+		keyValue := keysym & 0xff
+		if keyType == ktShift && keyValue < nrShift && shiftKeys[keyValue] == 0 {
+			shiftKeys[keyValue] = key
+		}
+	}
+keymapLoop:
+	for keymapIndex := range keymaps {
+		var activeShiftKeys [nrShift]int
+		for i, shiftKey := range shiftKeys {
+			if keymapIndex&(1<<i) != 0 {
+				if shiftKey == 0 {
+					continue keymapLoop
+				}
+				activeShiftKeys[i] = shiftKey
+			}
+		}
+		for key, keysym := range keymaps[keymapIndex] {
+			keyType := keysym >> 8
+			keyValue := keysym & 0xff
+			if (keyType != ktLatin && keyType != ktLetter) || keyValue == 0 {
+				continue
+			}
+			character := rune(keyValue)
+			if _, ok := keymap.keyComboMap[character]; ok {
+				continue
+			}
+			keymap.keyComboMap[character] = KeyCombo{key, activeShiftKeys}
+		}
+	}
+	return &keymap, nil
+}

inputcontrol/keysyms.generated.go

@@ -0,0 +1,207 @@
+// Code generated by keysyms.generator.go. DO NOT EDIT.
+//go:build portal || x11
+
+package inputcontrol
+
+var keysymsMap = map[rune]Keysym{
+	0x0008: 0x0000ff08,
+	0x0009: 0x0000ff09,
+	0x000a: 0x0000ff0a,
+	0x000b: 0x0000ff0b,
+	0x000d: 0x0000ff0d,
+	0x0013: 0x0000ff13,
+	0x0014: 0x0000ff14,
+	0x0015: 0x0000ff15,
+	0x001b: 0x0000ff1b,
+	0x0020: 0x00000020,
+	0x0021: 0x00000021,
+	0x0022: 0x00000022,
+	0x0023: 0x00000023,
+	0x0024: 0x00000024,
+	0x0025: 0x00000025,
+	0x0026: 0x00000026,
+	0x0027: 0x00000027,
+	0x0028: 0x00000028,
+	0x0029: 0x00000029,
+	0x002a: 0x0000002a,
+	0x002b: 0x0000002b,
+	0x002c: 0x0000002c,
+	0x002d: 0x0000002d,
+	0x002e: 0x0000002e,
+	0x002f: 0x0000002f,
+	0x0030: 0x00000030,
+	0x0031: 0x00000031,
+	0x0032: 0x00000032,
+	0x0033: 0x00000033,
+	0x0034: 0x00000034,
+	0x0035: 0x00000035,
+	0x0036: 0x00000036,
+	0x0037: 0x00000037,
+	0x0038: 0x00000038,
+	0x0039: 0x00000039,
+	0x003a: 0x0000003a,
+	0x003b: 0x0000003b,
+	0x003c: 0x0000003c,
+	0x003d: 0x0000003d,
+	0x003e: 0x0000003e,
+	0x003f: 0x0000003f,
+	0x0040: 0x00000040,
+	0x0041: 0x00000041,
+	0x0042: 0x00000042,
+	0x0043: 0x00000043,
+	0x0044: 0x00000044,
+	0x0045: 0x00000045,
+	0x0046: 0x00000046,
+	0x0047: 0x00000047,
+	0x0048: 0x00000048,
+	0x0049: 0x00000049,
+	0x004a: 0x0000004a,
+	0x004b: 0x0000004b,
+	0x004c: 0x0000004c,
+	0x004d: 0x0000004d,
+	0x004e: 0x0000004e,
+	0x004f: 0x0000004f,
+	0x0050: 0x00000050,
+	0x0051: 0x00000051,
+	0x0052: 0x00000052,
+	0x0053: 0x00000053,
+	0x0054: 0x00000054,
+	0x0055: 0x00000055,
+	0x0056: 0x00000056,
+	0x0057: 0x00000057,
+	0x0058: 0x00000058,
+	0x0059: 0x00000059,
+	0x005a: 0x0000005a,
+	0x005b: 0x0000005b,
+	0x005c: 0x0000005c,
+	0x005d: 0x0000005d,
+	0x005e: 0x0000005e,
+	0x005f: 0x0000005f,
+	0x0060: 0x00000060,
+	0x0061: 0x00000061,
+	0x0062: 0x00000062,
+	0x0063: 0x00000063,
+	0x0064: 0x00000064,
+	0x0065: 0x00000065,
+	0x0066: 0x00000066,
+	0x0067: 0x00000067,
+	0x0068: 0x00000068,
+	0x0069: 0x00000069,
+	0x006a: 0x0000006a,
+	0x006b: 0x0000006b,
+	0x006c: 0x0000006c,
+	0x006d: 0x0000006d,
+	0x006e: 0x0000006e,
+	0x006f: 0x0000006f,
+	0x0070: 0x00000070,
+	0x0071: 0x00000071,
+	0x0072: 0x00000072,
+	0x0073: 0x00000073,
+	0x0074: 0x00000074,
+	0x0075: 0x00000075,
+	0x0076: 0x00000076,
+	0x0077: 0x00000077,
+	0x0078: 0x00000078,
+	0x0079: 0x00000079,
+	0x007a: 0x0000007a,
+	0x007b: 0x0000007b,
+	0x007c: 0x0000007c,
+	0x007d: 0x0000007d,
+	0x007e: 0x0000007e,
+	0x00a0: 0x000000a0,
+	0x00a1: 0x000000a1,
+	0x00a2: 0x000000a2,
+	0x00a3: 0x000000a3,
+	0x00a4: 0x000000a4,
+	0x00a5: 0x000000a5,
+	0x00a6: 0x000000a6,
+	0x00a7: 0x000000a7,
+	0x00a8: 0x000000a8,
+	0x00a9: 0x000000a9,
+	0x00aa: 0x000000aa,
+	0x00ab: 0x000000ab,
+	0x00ac: 0x000000ac,
+	0x00ad: 0x000000ad,
+	0x00ae: 0x000000ae,
+	0x00af: 0x000000af,
+	0x00b0: 0x000000b0,
+	0x00b1: 0x000000b1,
+	0x00b2: 0x000000b2,
+	0x00b3: 0x000000b3,
+	0x00b4: 0x000000b4,
+	0x00b5: 0x000000b5,
+	0x00b6: 0x000000b6,
+	0x00b7: 0x000000b7,
+	0x00b8: 0x000000b8,
+	0x00b9: 0x000000b9,
+	0x00ba: 0x000000ba,
+	0x00bb: 0x000000bb,
+	0x00bc: 0x000000bc,
+	0x00bd: 0x000000bd,
+	0x00be: 0x000000be,
+	0x00bf: 0x000000bf,
+	0x00c0: 0x000000c0,
+	0x00c1: 0x000000c1,
+	0x00c2: 0x000000c2,
+	0x00c3: 0x000000c3,
+	0x00c4: 0x000000c4,
+	0x00c5: 0x000000c5,
+	0x00c6: 0x000000c6,
+	0x00c7: 0x000000c7,
+	0x00c8: 0x000000c8,
+	0x00c9: 0x000000c9,
+	0x00ca: 0x000000ca,
+	0x00cb: 0x000000cb,
+	0x00cc: 0x000000cc,
+	0x00cd: 0x000000cd,
+	0x00ce: 0x000000ce,
+	0x00cf: 0x000000cf,
+	0x00d0: 0x000000d0,
+	0x00d1: 0x000000d1,
+	0x00d2: 0x000000d2,
+	0x00d3: 0x000000d3,
+	0x00d4: 0x000000d4,
+	0x00d5: 0x000000d5,
+	0x00d6: 0x000000d6,
+	0x00d7: 0x000000d7,
+	0x00d8: 0x000000d8,
+	0x00d9: 0x000000d9,
+	0x00da: 0x000000da,
+	0x00db: 0x000000db,
+	0x00dc: 0x000000dc,
+	0x00dd: 0x000000dd,
+	0x00de: 0x000000de,
+	0x00df: 0x000000df,
+	0x00e0: 0x000000e0,
+	0x00e1: 0x000000e1,
+	0x00e2: 0x000000e2,
+	0x00e3: 0x000000e3,
+	0x00e4: 0x000000e4,
+	0x00e5: 0x000000e5,
+	0x00e6: 0x000000e6,
+	0x00e7: 0x000000e7,
+	0x00e8: 0x000000e8,
+	0x00e9: 0x000000e9,
+	0x00ea: 0x000000ea,
+	0x00eb: 0x000000eb,
+	0x00ec: 0x000000ec,
+	0x00ed: 0x000000ed,
+	0x00ee: 0x000000ee,
+	0x00ef: 0x000000ef,
+	0x00f0: 0x000000f0,
+	0x00f1: 0x000000f1,
+	0x00f2: 0x000000f2,
+	0x00f3: 0x000000f3,
+	0x00f4: 0x000000f4,
+	0x00f5: 0x000000f5,
+	0x00f6: 0x000000f6,
+	0x00f7: 0x000000f7,
+	0x00f8: 0x000000f8,
+	0x00f9: 0x000000f9,
+	0x00fa: 0x000000fa,
+	0x00fb: 0x000000fb,
+	0x00fc: 0x000000fc,
+	0x00fd: 0x000000fd,
+	0x00fe: 0x000000fe,
+	0x00ff: 0x000000ff,
+}

inputcontrol/keysyms.generator.go

@@ -0,0 +1,126 @@
+//go:build ignore
+
+/*
+ *    Copyright (c) 2018 Unrud <unrud@outlook.com>
+ *
+ *    This file is part of Remote-Touchpad.
+ *
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    Remote-Touchpad is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"os"
+	"regexp"
+	"sort"
+	"strconv"
+)
+
+type Keysym int32
+
+const (
+	keysymdefHeader  string = "/usr/include/X11/keysymdef.h"
+	output           string = "keysyms.generated.go"
+	maxMappedUnicode rune   = 0xff
+)
+
+var overrideKeysyms = map[string]rune{
+	"XK_BackSpace":   0x08,
+	"XK_Tab":         0x09,
+	"XK_Linefeed":    0x0a,
+	"XK_Clear":       0x0b,
+	"XK_Return":      0x0d,
+	"XK_Pause":       0x13,
+	"XK_Scroll_Lock": 0x14,
+	"XK_Sys_Req":     0x15,
+	"XK_Escape":      0x1b,
+}
+
+func main() {
+	f, err := os.Open(keysymdefHeader)
+	if err != nil {
+		panic(err)
+	}
+	defer f.Close()
+	reader := bufio.NewReader(f)
+	re := regexp.MustCompile("^\\#define " +
+		"(XK_[a-zA-Z_0-9]+)\\s+" + // keysymName
+		"0x([0-9a-f]+)\\s*" + // keysym
+		"(?:/\\*\\s*(?:U\\+([0-9A-F]{4,6}))?.*\\*/\\s*)?" + // keysymUnicode (optional)
+		"$")
+	keysymsMap := make(map[rune]Keysym)
+	for {
+		l, err := reader.ReadString('\n')
+		if err == io.EOF {
+			break
+		} else if err != nil {
+			panic(err)
+		}
+		submatches := re.FindStringSubmatch(l)
+		if len(submatches) == 0 {
+			continue
+		}
+		keysymName := submatches[1]
+		keysymTemp, err := strconv.ParseInt(submatches[2], 16, 32)
+		keysym := Keysym(keysymTemp)
+		if err != nil {
+			panic(err)
+		}
+		unicode, found := overrideKeysyms[keysymName]
+		if !found {
+			if len(submatches[3]) == 0 {
+				continue
+			}
+			unicodeTemp, err := strconv.ParseInt(submatches[3], 16, 32)
+			unicode = rune(unicodeTemp)
+			if err != nil {
+				panic(err)
+			}
+
+		}
+		if unicode > maxMappedUnicode {
+			continue
+		}
+		if _, found := keysymsMap[unicode]; found {
+			continue
+		}
+		keysymsMap[unicode] = keysym
+	}
+	content := "// Code generated by keysyms.generator.go. DO NOT EDIT.\n" +
+		"//go:build portal || x11\n\n" +
+		"package inputcontrol\n\n" +
+		"var keysymsMap = map[rune]Keysym{\n"
+	keys := make([]rune, 0)
+	for key := range keysymsMap {
+		keys = append(keys, key)
+	}
+	sort.Slice(keys, func(i, j int) bool { return keys[i] < keys[j] })
+	for _, unicode := range keys {
+		keysym := keysymsMap[unicode]
+		content += fmt.Sprintf("\t0x%04x: 0x%08x,\n", unicode, keysym)
+	}
+	content += "}\n"
+	o, err := os.Create(output)
+	if err != nil {
+		panic(err)
+	}
+	defer o.Close()
+	if _, err := o.WriteString(content); err != nil {
+		panic(err)
+	}
+}

inputcontrol/keysyms.go

@@ -0,0 +1,109 @@
+//go:build portal || x11
+
+/*
+ *    Copyright (c) 2018 Unrud <unrud@outlook.com>
+ *
+ *    This file is part of Remote-Touchpad.
+ *
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    Remote-Touchpad is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package inputcontrol
+
+//go:generate go run keysyms.generator.go
+
+import "fmt"
+
+type Keysym int32
+
+const (
+	// X11/keysymdef.h
+	xkBackSpace Keysym = 0xff08
+	xkReturn    Keysym = 0xff0D
+	xkDelete    Keysym = 0xffff
+	xkHome      Keysym = 0xff50
+	xkLeft      Keysym = 0xff51
+	xkUp        Keysym = 0xff52
+	xkRight     Keysym = 0xff53
+	xkDown      Keysym = 0xff54
+	xkEnd       Keysym = 0xff57
+	xkSuperL    Keysym = 0xffeb
+	// X11/XF86keysym.h
+	xf86xkAudioLowerVolume Keysym = 0x1008ff11
+	xf86xkAudioMute        Keysym = 0x1008ff12
+	xf86xkAudioRaiseVolume Keysym = 0x1008ff13
+	xf86xkAudioPlay        Keysym = 0x1008ff14
+	xf86xkAudioPrev        Keysym = 0x1008ff16
+	xf86xkAudioNext        Keysym = 0x1008ff17
+	xf86xkBack             Keysym = 0x1008ff26
+	xf86xkForward          Keysym = 0x1008ff27
+)
+
+func RuneToKeysym(runeValue rune) (Keysym, error) {
+	if runeValue == '\n' {
+		runeValue = '\r'
+	}
+	keysym, found := keysymsMap[runeValue]
+	if !found {
+		if runeValue < 0x100 || runeValue > 0x10ffff {
+			return 0, fmt.Errorf("rune not mappend to keysym and "+
+				"out of range for direct unicode mapping: %q", runeValue)
+		}
+		keysym = Keysym(0x01000000 + runeValue)
+	}
+	return keysym, nil
+}
+
+func KeyToKeysym(key Key) (Keysym, error) {
+	switch key {
+	case KeyBackSpace:
+		return xkBackSpace, nil
+	case KeyReturn:
+		return xkReturn, nil
+	case KeyDelete:
+		return xkDelete, nil
+	case KeyHome:
+		return xkHome, nil
+	case KeyLeft:
+		return xkLeft, nil
+	case KeyUp:
+		return xkUp, nil
+	case KeyRight:
+		return xkRight, nil
+	case KeyDown:
+		return xkDown, nil
+	case KeyEnd:
+		return xkEnd, nil
+	case KeySuper:
+		return xkSuperL, nil
+	case KeyVolumeMute:
+		return xf86xkAudioMute, nil
+	case KeyVolumeDown:
+		return xf86xkAudioLowerVolume, nil
+	case KeyVolumeUp:
+		return xf86xkAudioRaiseVolume, nil
+	case KeyMediaPlayPause:
+		return xf86xkAudioPlay, nil
+	case KeyMediaPrevTrack:
+		return xf86xkAudioPrev, nil
+	case KeyMediaNextTrack:
+		return xf86xkAudioNext, nil
+	case KeyBrowserBack:
+		return xf86xkBack, nil
+	case KeyBrowserForward:
+		return xf86xkForward, nil
+	default:
+		return 0, fmt.Errorf("key not mapped to keysym: %#v", key)
+	}
+}

main.go

@@ -1,9 +1,9 @@
 /*
- *    Copyright (c) 2018 Unrud<unrud@outlook.com>
+ *    Copyright (c) 2018-2019 Unrud <unrud@outlook.com>
  *
  *    This file is part of Remote-Touchpad.
  *
- *    Foobar is free software: you can redistribute it and/or modify
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
  *    it under the terms of the GNU General Public License as published by
  *    the Free Software Foundation, either version 3 of the License, or
  *    (at your option) any later version.
@@ -13,8 +13,8 @@
  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *    GNU General Public License for more details.
  *
- *   You should have received a copy of the GNU General Public License
+ *    You should have received a copy of the GNU General Public License
- *   along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 package main
@@ -27,15 +27,19 @@ import (
 	"errors"
 	"flag"
 	"fmt"
-	"golang.org/x/net/websocket"
 	"log"
 	mathrand "math/rand"
 	"net"
 	"net/http"
+	"os"
 	"strconv"
 	"strings"
 	"time"
 	"unicode/utf8"
+
+	"github.com/unrud/remote-touchpad/inputcontrol"
+	"github.com/unrud/remote-touchpad/terminal"
+	"golang.org/x/net/websocket"
 )
 
 const (
@@ -44,50 +48,69 @@ const (
 	authenticationRateBurst int           = 10
 	challengeLength         int           = 8
 	defaultBind             string        = ":0"
-	version                 string        = "0.0.5"
+	version                 string        = "1.5.4"
+	prettyAppName           string        = "Remote Touchpad"
 )
 
-func processCommand(plugin Plugin, command string) error {
+type config struct {
+	UpdateRate       uint    `json:"updateRate"`
+	ScrollSpeed      float64 `json:"scrollSpeed"`
+	MoveSpeed        float64 `json:"moveSpeed"`
+	MouseScrollSpeed float64 `json:"mouseScrollSpeed"`
+	MouseMoveSpeed   float64 `json:"mouseMoveSpeed"`
+}
+
+func processCommand(controller inputcontrol.Controller, command string) error {
 	if len(command) == 0 {
 		return errors.New("empty command")
 	}
-	if command == "sf" {
+	if command == "S" {
-		return plugin.PointerScrollFinish()
+		return controller.PointerScroll(0, 0, true)
 	}
 	if command[0] == 't' {
 		text := command[1:]
 		if !utf8.ValidString(text) {
 			return errors.New("invalid utf-8")
 		}
-		return plugin.KeyboardText(text)
+		return controller.KeyboardText(text)
 	}
 	arguments := strings.Split(command[1:], ";")
-	if len(arguments) != 2 {
+	if command[0] == 'k' && len(arguments) != 1 ||
+		command[0] != 'k' && len(arguments) != 2 {
 		return errors.New("wrong number of arguments")
 	}
 	x, err := strconv.ParseInt(arguments[0], 10, 32)
 	if err != nil {
 		return err
 	}
+	if command[0] == 'k' {
+		if x < 0 || x >= int64(inputcontrol.KeyLimit) {
+			return errors.New("unsupported key")
+		}
+		return controller.KeyboardKey(inputcontrol.Key(x))
+	}
 	y, err := strconv.ParseInt(arguments[1], 10, 32)
 	if err != nil {
 		return err
 	}
 	if command[0] == 'm' {
-		return plugin.PointerMove(int(x), int(y))
+		return controller.PointerMove(int(x), int(y))
 	}
 	if command[0] == 's' {
-		return plugin.PointerScroll(int(x), int(y))
+		return controller.PointerScroll(int(x), int(y), false)
+	}
+	if command[0] == 'S' {
+		return controller.PointerScroll(int(x), int(y), true)
 	}
 	if command[0] == 'b' {
-		if x <= 0 || x > 3 {
+		if x < 0 || x >= int64(inputcontrol.PointerButtonLimit) {
 			return errors.New("unsupported pointer button")
 		}
 		b := true
 		if y == 0 {
 			b = false
 		}
-		return plugin.PointerButton(uint(x), b)
+		return controller.PointerButton(inputcontrol.PointerButton(x), b)
 	}
 	return errors.New("unsupported command")
 }
@@ -128,49 +151,61 @@ func secureRandBase64(length int) string {
 }
 
 func main() {
+	terminal.SetTitle(prettyAppName)
 	var bind, certFile, keyFile, secret string
-	var showVersion, invert bool
+	var showVersion bool
+	var config config
 	flag.BoolVar(&showVersion, "version", false, "show program's version number and exit")
 	flag.StringVar(&bind, "bind", defaultBind, "bind server to [HOSTNAME]:PORT")
 	flag.StringVar(&secret, "secret", "", "shared secret for client authentication")
 	flag.StringVar(&certFile, "cert", "", "file containing TLS certificate")
 	flag.StringVar(&keyFile, "key", "", "file containing TLS private key")
-	flag.BoolVar(&invert, "invert", false, "use inverse colors for QR code")
+	flag.UintVar(&config.UpdateRate, "update-rate", 30, "number of updates per second")
-	flag.Int("interval", 0, "obsolete, not used anymore")
+	flag.Float64Var(&config.MoveSpeed, "move-speed", 1, "move speed multiplier")
+	flag.Float64Var(&config.ScrollSpeed, "scroll-speed", 1, "scroll speed multiplier")
+	flag.Float64Var(&config.MouseMoveSpeed, "mouse-move-speed", 1, "mouse move speed multiplier")
+	flag.Float64Var(&config.MouseScrollSpeed, "mouse-scroll-speed", 1, "mouse scroll speed multiplier")
 	flag.Parse()
 	if showVersion {
 		fmt.Println(version)
 		return
 	}
 	if certFile != "" && keyFile == "" {
-		log.Fatal("TLS certificate missing")
+		log.Fatal("TLS private key file missing")
 	}
 	if certFile == "" && keyFile != "" {
-		log.Fatal("TLS private key missing")
+		log.Fatal("TLS certificate file missing")
 	}
 	tls := certFile != "" && keyFile != ""
 	if secret == "" {
 		secret = secureRandBase64(defaultSecretLength)
 	}
-	var plugin Plugin
+	if len(inputcontrol.Controllers) == 0 {
-	var pluginName string
+		log.Fatal("compiled without controller")
-	platformErrors := ""
+	}
-	for _, pluginInfo := range Plugins {
+	var controller inputcontrol.Controller
-		pluginName = pluginInfo.Name
+	var controllerName string
+	var platformErrs []error
+	for _, controllerInfo := range inputcontrol.Controllers {
+		controllerName = controllerInfo.Name
 		var err error
-		plugin, err = pluginInfo.Init()
+		controller, err = controllerInfo.Init()
 		if err == nil {
 			break
-		} else if _, ok := err.(UnsupportedPlatformError); ok {
-			platformErrors += fmt.Sprintf("%s plugin: %v\n", pluginName, err)
 		} else {
-			log.Fatal(fmt.Sprintf("%s plugin: %v", pluginName, err))
+			var unsupportedErr *inputcontrol.UnsupportedPlatformError
+			wrappedErr := fmt.Errorf("%v controller: %w", controllerName, err)
+			if errors.As(err, &unsupportedErr) {
+				platformErrs = append(platformErrs, wrappedErr)
+			} else {
+				log.Fatal(wrappedErr)
+			}
 		}
 	}
-	if plugin == nil {
+	if controller == nil {
-		log.Fatal("unsupported platform:\n" + platformErrors)
+		log.Fatal(fmt.Errorf("unsupported platform:\n%w", errors.Join(platformErrs...)))
 	}
-	defer plugin.Close()
+	defer controller.Close()
 	authenticationChallenges := make(chan challenge, authenticationRateBurst)
 	go authenticationChallengeGenerator(secret, authenticationChallenges)
 	listener, err := net.Listen("tcp", bind)
@@ -190,11 +225,11 @@ func main() {
 		}
 	}
 	if host == "" {
-		host = FindDefaultHost()
+		host = findDefaultHost()
 	}
 	port := addr.Port
 	mux := http.NewServeMux()
-	mux.Handle("/", http.FileServer(assetFS()))
+	mux.Handle("/", http.FileServer(http.FS(webdataFS)))
 	mux.Handle("/ws", websocket.Handler(func(ws *websocket.Conn) {
 		var message string
 		challenge := <-authenticationChallenges
@@ -205,12 +240,13 @@ func main() {
 		if !challenge.verify(message) {
 			return
 		}
+		websocket.JSON.Send(ws, config)
 		for {
 			if err := websocket.Message.Receive(ws, &message); err != nil {
 				return
 			}
-			if err := processCommand(plugin, message); err != nil {
+			if err := processCommand(controller, message); err != nil {
-				log.Print(fmt.Sprintf("%s plugin: %v", pluginName, err))
+				log.Print(fmt.Errorf("%s controller: %w", controllerName, err))
 				return
 			}
 		}
@@ -223,16 +259,17 @@ func main() {
 	if tls {
 		scheme = "https"
 	}
-	url := fmt.Sprintf("%s://%s/#%s\n", scheme, domain, secret)
+	url := fmt.Sprintf("%s://%s/#%s", scheme, domain, secret)
-	readyMsg := "ready: " + url
+	fmt.Println(url)
-	qrCode, _ := GenerateQRCode(url, invert)
+	if qrCode, err := terminal.GenerateQRCode(url, terminal.SupportsColor(os.Stdout.Fd())); err == nil {
-	readyMsg += qrCode
+		fmt.Print(qrCode)
-	if !tls {
+	} else {
-		readyMsg += ("" +
+		log.Printf("QR code error: %v", err)
-			"▌   WARNING: TLS is not enabled    ▐\n" +
+	}
-			"▌Don't use in an untrusted network!▐\n")
+	if !tls {
+		fmt.Println("▌   WARNING: TLS is not enabled    ▐")
+		fmt.Println("▌Don't use in an untrusted network!▐")
 	}
-	log.Print(readyMsg)
 	if tls {
 		err = http.ServeTLS(listener, mux, certFile, keyFile)
 	} else {

plugin.go

@@ -1,48 +0,0 @@
-/*
- *    Copyright (c) 2018 Unrud<unrud@outlook.com>
- *
- *    This file is part of Remote-Touchpad.
- *
- *    Foobar is free software: you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation, either version 3 of the License, or
- *    (at your option) any later version.
- *
- *    Remote-Touchpad is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package main
-
-type PluginInfo struct {
-	Name string
-	Init func() (Plugin, error)
-}
-
-var Plugins []PluginInfo = []PluginInfo{
-	{"X11", InitX11Plugin},
-	{"RemoteDesktop portal", InitPortalPlugin},
-	{"Windows", InitWindowsPlugin},
-}
-
-type UnsupportedPlatformError struct {
-	err error
-}
-
-func (e UnsupportedPlatformError) Error() string {
-	return e.err.Error()
-}
-
-type Plugin interface {
-	Close() error
-	KeyboardText(text string) error
-	PointerButton(button uint, press bool) error
-	PointerMove(deltaX, deltaY int) error
-	PointerScroll(deltaHorizontal, deltaVertical int) error
-	PointerScrollFinish() error
-}

plugin_portal.go

@@ -1,271 +0,0 @@
-// +build portal
-
-/*
- *    Copyright (c) 2018 Unrud<unrud@outlook.com>
- *
- *    This file is part of Remote-Touchpad.
- *
- *    Foobar is free software: you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation, either version 3 of the License, or
- *    (at your option) any later version.
- *
- *    Remote-Touchpad is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package main
-
-import (
-	dbus "anonscm.debian.org/git/pkg-go/packages/golang-dbus.git"
-	"errors"
-	"fmt"
-	"sync"
-)
-
-const (
-	deviceKeyboard uint32 = 1
-	devicePointer  uint32 = 2
-
-	btnReleased uint32 = 0
-	btnPressed  uint32 = 1
-
-	btnLeft   int32 = 0x110
-	btnRight  int32 = 0x111
-	btnMiddle int32 = 0x112
-)
-
-type portalPlugin struct {
-	bus           *dbus.Conn
-	remoteDesktop dbus.BusObject
-	sessionHandle dbus.ObjectPath
-	lock          sync.RWMutex
-}
-
-func InitPortalPlugin() (Plugin, error) {
-	bus, err := dbus.SessionBusPrivate()
-	if err != nil {
-		return nil, UnsupportedPlatformError{err}
-	}
-	cleanupBus := true
-	defer func() {
-		if cleanupBus {
-			bus.Close()
-		}
-	}()
-	err = bus.Auth(nil)
-	if err != nil {
-		return nil, UnsupportedPlatformError{err}
-	}
-	err = bus.Hello()
-	if err != nil {
-		return nil, UnsupportedPlatformError{err}
-	}
-	remoteDesktop := bus.Object("org.freedesktop.portal.Desktop",
-		"/org/freedesktop/portal/desktop")
-	availableDeviceTypesV, err := remoteDesktop.GetProperty(
-		"org.freedesktop.portal.RemoteDesktop.AvailableDeviceTypes")
-	if err != nil {
-		return nil, UnsupportedPlatformError{err}
-	}
-	availableDeviceTypes, ok := availableDeviceTypesV.Value().(uint32)
-	if !ok {
-		return nil, UnsupportedPlatformError{errors.New(
-			"unexpected 'AvailableDeviceTypes' return type")}
-	}
-	if availableDeviceTypes&deviceKeyboard == 0 ||
-		availableDeviceTypes&devicePointer == 0 {
-		return nil, UnsupportedPlatformError{errors.New(
-			"keyboard or pointer source type not supported")}
-	}
-	inVardict := make(map[string]dbus.Variant)
-	inVardict["session_handle_token"] = dbus.MakeVariant("t")
-	result, outVardict, err := getResponse(bus, remoteDesktop,
-		"org.freedesktop.portal.RemoteDesktop.CreateSession", 0, inVardict)
-	if err != nil {
-		return nil, UnsupportedPlatformError{err}
-	}
-	if result != 0 {
-		return nil, UnsupportedPlatformError{errors.New(fmt.Sprintf(
-			"Calling 'CreateSession' failed (%v)", result))}
-	}
-	sessionHandleV, ok := outVardict["session_handle"]
-	if !ok {
-		return nil, UnsupportedPlatformError{errors.New(
-			"'session_handle' missing from 'CreateSession' return value")}
-	}
-	sessionHandleS, ok := sessionHandleV.Value().(string)
-	if !ok {
-		return nil, UnsupportedPlatformError{errors.New(
-			"unexpected 'session_handle' type in 'CreateSession' return value")}
-	}
-	sessionHandle := dbus.ObjectPath(sessionHandleS)
-	inVardict = make(map[string]dbus.Variant)
-	inVardict["type"] = dbus.MakeVariant(deviceKeyboard | devicePointer)
-	result, outVardict, err = getResponse(bus, remoteDesktop,
-		"org.freedesktop.portal.RemoteDesktop.SelectDevices", 0, sessionHandle, inVardict)
-	if err != nil {
-		return nil, UnsupportedPlatformError{err}
-	}
-	if result != 0 {
-		return nil, UnsupportedPlatformError{errors.New(fmt.Sprintf(
-			"Calling 'SelectDevices' failed (%v)", result))}
-	}
-	inVardict = make(map[string]dbus.Variant)
-	result, outVardict, err = getResponse(bus, remoteDesktop,
-		"org.freedesktop.portal.RemoteDesktop.Start", 0, sessionHandle, "", inVardict)
-	if err != nil {
-		return nil, UnsupportedPlatformError{err}
-	}
-	if result != 0 {
-		return nil, errors.New("keyboard or pointer access denied")
-	}
-	devicesV, ok := outVardict["devices"]
-	if !ok {
-		return nil, UnsupportedPlatformError{errors.New(
-			"'devices' missing from 'Start' return value")}
-	}
-	devices, ok := devicesV.Value().(uint32)
-	if !ok {
-		return nil, UnsupportedPlatformError{errors.New(
-			"unexpected 'devices' type in 'Start' return value")}
-	}
-	if devices&deviceKeyboard == 0 || devices&devicePointer == 0 {
-		return nil, errors.New("keyboard or pointer access denied")
-	}
-	cleanupBus = false
-	return &portalPlugin{bus: bus, remoteDesktop: remoteDesktop,
-		sessionHandle: sessionHandle}, nil
-}
-
-func getResponse(bus *dbus.Conn, object dbus.BusObject, method string,
-	flags dbus.Flags, args ...interface{}) (uint32, map[string]dbus.Variant, error) {
-	ch := make(chan *dbus.Signal)
-	bus.Signal(ch)
-	defer bus.RemoveSignal(ch)
-	var requestPath dbus.ObjectPath
-	if err := object.Call(method, flags, args...).Store(&requestPath); err != nil {
-		return 0, nil, err
-	}
-	for {
-		s := <-ch
-		if s.Path == requestPath && s.Name == "org.freedesktop.portal.Request.Response" {
-			if len(s.Body) != 2 {
-				return 0, nil, errors.New("unexpected 'Response' return length")
-			}
-			result, ok := s.Body[0].(uint32)
-			if !ok {
-				return 0, nil, errors.New("unexpected 'Response' return type")
-			}
-			outVardict, ok := s.Body[1].(map[string]dbus.Variant)
-			if !ok {
-				return 0, nil, errors.New("unexpected 'Response' return type")
-			}
-			return result, outVardict, nil
-		}
-	}
-}
-
-func (p *portalPlugin) Close() error {
-	p.lock.Lock()
-	defer p.lock.Unlock()
-	if p.bus == nil {
-		return errors.New("dbus connection closed")
-	}
-	if err := p.bus.Close(); err != nil {
-		return err
-	}
-	p.bus = nil
-	p.remoteDesktop = nil
-	return nil
-}
-
-func (p *portalPlugin) KeyboardText(text string) error {
-	p.lock.RLock()
-	defer p.lock.RUnlock()
-	if p.bus == nil {
-		return errors.New("dbus connection closed")
-	}
-	inVardict := make(map[string]dbus.Variant)
-	for _, runeValue := range text {
-		keysym := int32(0x01000000 + runeValue)
-		for _, state := range [...]uint32{btnPressed, btnReleased} {
-			if err := p.remoteDesktop.Call(
-				"org.freedesktop.portal.RemoteDesktop.NotifyKeyboardKeysym",
-				0, p.sessionHandle, inVardict, keysym, state).Store(); err != nil {
-				return err
-			}
-		}
-	}
-	return nil
-}
-
-func (p *portalPlugin) PointerButton(button uint, press bool) error {
-	p.lock.RLock()
-	defer p.lock.RUnlock()
-	if p.bus == nil {
-		return errors.New("dbus connection closed")
-	}
-	var btn int32
-	if button == 1 {
-		btn = btnLeft
-	} else if button == 2 {
-		btn = btnMiddle
-	} else if button == 3 {
-		btn = btnRight
-	} else {
-		return errors.New("unsupported pointer button")
-	}
-	state := btnReleased
-	if press {
-		state = btnPressed
-	}
-	inVardict := make(map[string]dbus.Variant)
-	if err := p.remoteDesktop.Call("org.freedesktop.portal.RemoteDesktop.NotifyPointerButton",
-		0, p.sessionHandle, inVardict, btn, state).Store(); err != nil {
-		return err
-	}
-	return nil
-}
-
-func (p *portalPlugin) PointerMove(deltaX, deltaY int) error {
-	p.lock.RLock()
-	defer p.lock.RUnlock()
-	if p.bus == nil {
-		return errors.New("dbus connection closed")
-	}
-	inVardict := make(map[string]dbus.Variant)
-	if err := p.remoteDesktop.Call("org.freedesktop.portal.RemoteDesktop.NotifyPointerMotion",
-		0, p.sessionHandle, inVardict, float64(deltaX), float64(deltaY)).Store(); err != nil {
-		return err
-	}
-	return nil
-}
-
-func (p *portalPlugin) pointerScrollFull(deltaHorizontal, deltaVertical int, finish bool) error {
-	p.lock.RLock()
-	defer p.lock.RUnlock()
-	if p.bus == nil {
-		return errors.New("dbus connection closed")
-	}
-	inVardict := make(map[string]dbus.Variant)
-	inVardict["finish"] = dbus.MakeVariant(finish)
-	if err := p.remoteDesktop.Call("org.freedesktop.portal.RemoteDesktop.NotifyPointerAxis",
-		0, p.sessionHandle, inVardict, float64(deltaHorizontal), float64(deltaVertical)).Store(); err != nil {
-		return err
-	}
-	return nil
-}
-
-func (p *portalPlugin) PointerScroll(deltaHorizontal, deltaVertical int) error {
-	return p.pointerScrollFull(deltaHorizontal, deltaVertical, false)
-}
-
-func (p *portalPlugin) PointerScrollFinish() error {
-	return p.pointerScrollFull(0, 0, true)
-}

plugin_windows.go

@@ -1,178 +0,0 @@
-// +build windows
-
-/*
- *    Copyright (c) 2018 Unrud<unrud@outlook.com>
- *
- *    This file is part of Remote-Touchpad.
- *
- *    Foobar is free software: you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation, either version 3 of the License, or
- *    (at your option) any later version.
- *
- *    Remote-Touchpad is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package main
-
-import (
-	"errors"
-	"syscall"
-	"unsafe"
-)
-
-const (
-	inputMouse    uintptr = 0x0
-	inputKeyboard uintptr = 0x1
-
-	keyeventfKeyup   uint32 = 0x2
-	keyeventfUnicode uint32 = 0x4
-
-	mouseeventfMove       uint32 = 0x1
-	mouseeventfLeftdown   uint32 = 0x2
-	mouseeventfLeftup     uint32 = 0x4
-	mouseeventfRightdown  uint32 = 0x8
-	mouseeventfRightup    uint32 = 0x10
-	mouseeventfMiddledown uint32 = 0x20
-	mouseeventfMiddleup   uint32 = 0x40
-	mouseeventfWheel      uint32 = 0x800
-	mouseeventfHwheel     uint32 = 0x1000
-
-	scrollMult int = 6
-)
-
-type mouseInput struct {
-	typ uintptr // HACK: padded uint32
-
-	dx, dy                   int32
-	mouseData, dwFlags, time uint32
-	dwExtraInfo              uintptr
-}
-
-type keybdInput struct {
-	typ uintptr // HACK: padded uint32
-
-	wVk, wScan    uint16
-	dwFlags, time uint32
-	dwExtraInfo   uintptr
-
-	padding [8]byte
-}
-
-type windowsPlugin struct {
-	userDLL       *syscall.LazyDLL
-	sendInputProc *syscall.LazyProc
-}
-
-func InitWindowsPlugin() (Plugin, error) {
-	p := &windowsPlugin{}
-	p.userDLL = syscall.NewLazyDLL("user32.dll")
-	p.sendInputProc = p.userDLL.NewProc("SendInput")
-	if err := p.sendInputProc.Find(); err != nil {
-		return nil, UnsupportedPlatformError{err}
-	}
-	return p, nil
-}
-
-func (p *windowsPlugin) Close() error {
-	return nil
-}
-
-func (p *windowsPlugin) KeyboardText(text string) error {
-	runes := []rune(text)
-	if len(runes) == 0 {
-		return nil
-	}
-	inputs := make([]keybdInput, len(runes)*2)
-	for i := range inputs {
-		inputs[i].typ = inputKeyboard
-		inputs[i].wScan = uint16(runes[i/2])
-		inputs[i].dwFlags = keyeventfUnicode
-		if i%2 == 1 {
-			inputs[i].dwFlags |= keyeventfKeyup
-		}
-	}
-	if r, _, err := p.sendInputProc.Call(uintptr(len(inputs)),
-		uintptr(unsafe.Pointer(&inputs[0])),
-		unsafe.Sizeof(inputs[0])); int(r) != len(inputs) {
-		return err
-	}
-	return nil
-}
-
-func (p *windowsPlugin) PointerButton(button uint, press bool) error {
-	input := mouseInput{
-		typ: inputMouse,
-	}
-	if button == 1 && press {
-		input.dwFlags = mouseeventfLeftdown
-	} else if button == 1 {
-		input.dwFlags = mouseeventfLeftup
-	} else if button == 2 && press {
-		input.dwFlags = mouseeventfMiddledown
-	} else if button == 2 {
-		input.dwFlags = mouseeventfMiddleup
-	} else if button == 3 && press {
-		input.dwFlags = mouseeventfRightdown
-	} else if button == 3 {
-		input.dwFlags = mouseeventfRightup
-	} else {
-		return errors.New("unsupported pointer button")
-	}
-	if r, _, err := p.sendInputProc.Call(1, uintptr(unsafe.Pointer(&input)),
-		unsafe.Sizeof(input)); int(r) != 1 {
-		return err
-	}
-	return nil
-}
-
-func (p *windowsPlugin) PointerMove(deltaX, deltaY int) error {
-	input := mouseInput{
-		typ:     inputMouse,
-		dx:      int32(deltaX),
-		dy:      int32(deltaY),
-		dwFlags: mouseeventfMove,
-	}
-	if r, _, err := p.sendInputProc.Call(1, uintptr(unsafe.Pointer(&input)),
-		unsafe.Sizeof(input)); int(r) != 1 {
-		return err
-	}
-	return nil
-}
-
-func (p *windowsPlugin) PointerScroll(deltaHorizontal, deltaVertical int) error {
-	inputs := make([]mouseInput, 0, 2)
-	if deltaHorizontal != 0 {
-		inputs = append(inputs, mouseInput{
-			typ:       inputMouse,
-			dwFlags:   mouseeventfHwheel,
-			mouseData: uint32(deltaHorizontal * scrollMult),
-		})
-	}
-	if deltaVertical != 0 {
-		inputs = append(inputs, mouseInput{
-			typ:       inputMouse,
-			dwFlags:   mouseeventfWheel,
-			mouseData: uint32(deltaVertical * scrollMult),
-		})
-	}
-	if len(inputs) == 0 {
-		return nil
-	}
-	if r, _, err := p.sendInputProc.Call(uintptr(len(inputs)),
-		uintptr(unsafe.Pointer(&inputs[0])),
-		unsafe.Sizeof(inputs[0])); int(r) != len(inputs) {
-		return err
-	}
-	return nil
-}
-
-func (p *windowsPlugin) PointerScrollFinish() error {
-	return nil
-}

plugin_windows_dummy.go

@@ -1,28 +0,0 @@
-// +build !windows
-
-/*
- *    Copyright (c) 2018 Unrud<unrud@outlook.com>
- *
- *    This file is part of Remote-Touchpad.
- *
- *    Foobar is free software: you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation, either version 3 of the License, or
- *    (at your option) any later version.
- *
- *    Remote-Touchpad is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package main
-
-import "errors"
-
-func InitWindowsPlugin() (Plugin, error) {
-	return nil, UnsupportedPlatformError{errors.New("disabled")}
-}

plugin_x11.go

@@ -1,206 +0,0 @@
-// +build x11
-
-/*
- *    Copyright (c) 2018 Unrud<unrud@outlook.com>
- *
- *    This file is part of Remote-Touchpad.
- *
- *    Foobar is free software: you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation, either version 3 of the License, or
- *    (at your option) any later version.
- *
- *    Remote-Touchpad is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package main
-
-// #cgo LDFLAGS: -lX11 -lXtst
-// #include <X11/Xlib.h>
-// #include <X11/Intrinsic.h>
-// #include <X11/extensions/XTest.h>
-import "C"
-import (
-	"errors"
-	"fmt"
-	"os"
-	"sync"
-	"time"
-	"unsafe"
-)
-
-const (
-	typingDelay time.Duration = 100 * time.Millisecond
-	scrollDiv   int           = 20
-)
-
-type x11Plugin struct {
-	display                          *C.Display
-	lock                             sync.Mutex
-	scrollHorizontal, scrollVertical int
-}
-
-func InitX11Plugin() (Plugin, error) {
-	sessionType := os.Getenv("XDG_SESSION_TYPE")
-	if sessionType != "" && sessionType != "x11" {
-		return nil, UnsupportedPlatformError{errors.New(fmt.Sprintf(
-			"unsupported session type '%v'", sessionType))}
-	}
-	display := C.XOpenDisplay(nil)
-	if display == nil {
-		return nil, UnsupportedPlatformError{
-			errors.New("failed to connect to X server")}
-	}
-	return &x11Plugin{display: display}, nil
-}
-
-func (p *x11Plugin) Close() error {
-	p.lock.Lock()
-	defer p.lock.Unlock()
-	if p.display == nil {
-		return errors.New("X server connection closed")
-	}
-	C.XCloseDisplay(p.display)
-	p.display = nil
-	return nil
-}
-
-func (p *x11Plugin) KeyboardText(text string) error {
-	p.lock.Lock()
-	defer p.lock.Unlock()
-	if p.display == nil {
-		return errors.New("X server connection closed")
-	}
-	if text == "" {
-		return nil
-	}
-	var minKeycodes, maxKeycodes C.int
-	C.XDisplayKeycodes(p.display, &minKeycodes, &maxKeycodes)
-	var keysymsPerKeycode C.int
-	keysyms := C.XGetKeyboardMapping(p.display, C.KeyCode(minKeycodes),
-		maxKeycodes-minKeycodes+1, &keysymsPerKeycode)
-	if keysyms == nil {
-		return errors.New("failed to get keyboard mapping")
-	}
-	defer C.XFree(unsafe.Pointer(keysyms))
-	emptyKeycode := C.KeyCode(0)
-keycodes:
-	for keycode := C.KeyCode(minKeycodes); keycode <= C.KeyCode(maxKeycodes); keycode++ {
-		for i := 0; i < int(keysymsPerKeycode); i++ {
-			keysymsIndex := int(keycode-
-				C.KeyCode(minKeycodes))*int(keysymsPerKeycode) + i
-			keysym := *(*C.KeySym)(unsafe.Pointer(uintptr(unsafe.Pointer(keysyms)) +
-				uintptr(keysymsIndex)*unsafe.Sizeof(*keysyms)))
-			if keysym != 0 {
-				continue keycodes
-			}
-		}
-		emptyKeycode = keycode
-		break
-	}
-	if emptyKeycode == 0 {
-		return errors.New("no empty keycode found")
-	}
-	keycodeMapping := make([]C.KeySym, keysymsPerKeycode)
-	defer func() {
-		for i := range keycodeMapping {
-			keycodeMapping[i] = 0
-		}
-		C.XChangeKeyboardMapping(p.display, C.int(emptyKeycode), keysymsPerKeycode,
-			(*C.KeySym)(unsafe.Pointer(&keycodeMapping[0])), 1)
-		C.XFlush(p.display)
-	}()
-	for _, runeValue := range text {
-		keysym := C.KeySym(0x01000000 + runeValue)
-		for i := range keycodeMapping {
-			keycodeMapping[i] = keysym
-		}
-		C.XChangeKeyboardMapping(p.display, C.int(emptyKeycode), keysymsPerKeycode,
-			(*C.KeySym)(unsafe.Pointer(&keycodeMapping[0])), 1)
-		C.XTestFakeKeyEvent(p.display, C.uint(emptyKeycode), C.True, 0)
-		C.XTestFakeKeyEvent(p.display, C.uint(emptyKeycode), C.False, 0)
-		// race condition!
-		C.XFlush(p.display)
-		time.Sleep(typingDelay)
-	}
-	return nil
-}
-
-func (p *x11Plugin) PointerButton(button uint, press bool) error {
-	p.lock.Lock()
-	defer p.lock.Unlock()
-	if p.display == nil {
-		return errors.New("X server connection closed")
-	}
-	if button == 0 || button > 9 {
-		return errors.New("unsupported pointer button")
-	}
-	var pressC C.int = C.False
-	if press {
-		pressC = C.True
-	}
-	C.XTestFakeButtonEvent(p.display, C.uint(button), pressC, 0)
-	C.XFlush(p.display)
-	return nil
-}
-
-func (p *x11Plugin) PointerMove(deltaX, deltaY int) error {
-	p.lock.Lock()
-	defer p.lock.Unlock()
-	if p.display == nil {
-		return errors.New("X server connection closed")
-	}
-	C.XTestFakeRelativeMotionEvent(p.display, C.int(deltaX), C.int(deltaY), 0)
-	C.XFlush(p.display)
-	return nil
-}
-
-func (p *x11Plugin) PointerScroll(deltaHorizontal, deltaVertical int) error {
-	p.lock.Lock()
-	stepsHorizontal := (p.scrollHorizontal + deltaHorizontal) / scrollDiv
-	stepsVertical := (p.scrollVertical + deltaVertical) / scrollDiv
-	p.scrollHorizontal = (p.scrollHorizontal + deltaHorizontal) % scrollDiv
-	p.scrollVertical = (p.scrollVertical + deltaVertical) % scrollDiv
-	p.lock.Unlock()
-	var buttonHorizontal uint = 7
-	if stepsHorizontal < 0 {
-		buttonHorizontal = 6
-		stepsHorizontal = -stepsHorizontal
-	}
-	for i := 0; i < stepsHorizontal; i++ {
-		if err := p.PointerButton(buttonHorizontal, true); err != nil {
-			return err
-		}
-		if err := p.PointerButton(buttonHorizontal, false); err != nil {
-			return err
-		}
-	}
-	var buttonVertical uint = 5
-	if stepsVertical < 0 {
-		buttonVertical = 4
-		stepsVertical = -stepsVertical
-	}
-	for i := 0; i < stepsVertical; i++ {
-		if err := p.PointerButton(buttonVertical, true); err != nil {
-			return err
-		}
-		if err := p.PointerButton(buttonVertical, false); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func (p *x11Plugin) PointerScrollFinish() error {
-	p.lock.Lock()
-	defer p.lock.Unlock()
-	p.scrollHorizontal = 0
-	p.scrollVertical = 0
-	return nil
-}

plugin_x11_dummy.go

@@ -1,28 +0,0 @@
-// +build !x11
-
-/*
- *    Copyright (c) 2018 Unrud<unrud@outlook.com>
- *
- *    This file is part of Remote-Touchpad.
- *
- *    Foobar is free software: you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation, either version 3 of the License, or
- *    (at your option) any later version.
- *
- *    Remote-Touchpad is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package main
-
-import "errors"
-
-func InitX11Plugin() (Plugin, error) {
-	return nil, UnsupportedPlatformError{errors.New("disabled")}
-}

remote-touchpad.service

@@ -0,0 +1,12 @@
+[Unit]
+Description=Remote Touchpad Service
+After=network.target
+
+[Service]
+Type=simple
+ExecStart=%h/.local/bin/remote-touchpad
+Restart=always
+RestartSec=5s
+
+[Install]
+WantedBy=default.target

rts

@@ -0,0 +1,149 @@
+#!/bin/bash
+
+# Remote Touchpad CLI Wrapper
+# Provides easy access to remote-touchpad service
+
+SERVICE_NAME="remote-touchpad"
+SERVICE_USER="$USER"
+
+install() {
+    echo "Installing remote-touchpad as a user systemd service..."
+    
+    # Check if Go is installed
+    if ! command -v go &> /dev/null; then
+        echo "Error: Go is not installed. Please install Go first."
+        return 1
+    fi
+    
+    echo "Building remote-touchpad binary..."
+    go build -tags portal,uinput,x11 -o remote-touchpad
+    
+    if [ ! -f "remote-touchpad" ]; then
+        echo "Error: Failed to build remote-touchpad binary"
+        return 1
+    fi
+    
+    # Setup directories
+    mkdir -p ~/.local/bin ~/.config/systemd/user
+    
+    echo "Installing service files..."
+    cp remote-touchpad ~/.local/bin/ || echo "Error: cp to ~/.local/bin failed"
+    cp remote-touchpad.service ~/.config/systemd/user/ || echo "Error: cp to ~/.config/systemd/user failed"
+    
+    echo "Enabling and starting service..."
+    systemctl --user daemon-reload
+    systemctl --user enable --now ${SERVICE_NAME}.service
+    
+    echo "✓ remote-touchpad user service installed and started"
+    echo ""
+    echo "Use './rts status' to check the service"
+    echo "Use './rts url' to get the connection URL"
+}
+
+start() {
+    systemctl --user start ${SERVICE_NAME}.service
+    echo "Started remote-touchpad service"
+}
+
+stop() {
+    systemctl --user stop ${SERVICE_NAME}.service
+    echo "Stopped remote-touchpad service"
+}
+
+status() {
+    systemctl --user status ${SERVICE_NAME}.service --no-pager
+}
+
+restart() {
+    systemctl --user restart ${SERVICE_NAME}.service
+    echo "Restarted remote-touchpad service"
+}
+
+url() {
+    # Extract URL from service logs
+    echo "Fetching remote-touchpad URL..."
+    local url=$(journalctl --user -u ${SERVICE_NAME}.service -n 100 --no-pager 2>/dev/null | grep -oE "http://[^ ]+|https://[^ ]+" | tail -1)
+    if [ -n "$url" ]; then
+        echo "Remote Touchpad URL: $url"
+        # Generate QR code if qrencode is available
+        if command -v qrencode &> /dev/null; then
+            echo "Generating QR code..."
+            echo "$url" | qrencode -t ansiutf8
+        else
+            echo "QR code generation requires qrencode. Install it with:"
+            echo "  sudo apt-get install qrencode  # Debian/Ubuntu"
+            echo "  sudo dnf install qrencode      # Fedora"
+            echo "  brew install qrencode          # macOS"
+        fi
+    else
+        echo "Could not find URL in service logs. Is the service running?"
+    fi
+}
+
+log() {
+    echo "Viewing remote-touchpad service logs..."
+    journalctl --user -u ${SERVICE_NAME}.service --no-pager
+}
+
+uninstall() {
+    echo "Uninstalling remote-touchpad..."
+    systemctl --user stop ${SERVICE_NAME}.service
+    systemctl --user disable ${SERVICE_NAME}.service
+    rm -f ~/.config/systemd/user/${SERVICE_NAME}.service
+    rm -f ~/.local/bin/remote-touchpad
+    systemctl --user daemon-reload
+    echo "✓ remote-touchpad uninstalled"
+}
+
+help() {
+    echo "Remote Touchpad CLI Wrapper"
+    echo ""
+    echo "Usage: rts [command]"
+    echo ""
+    echo "Commands:"
+    echo "  install    - Install remote-touchpad as a systemd user service"
+    echo "  start      - Start the remote-touchpad service"
+    echo "  stop       - Stop the remote-touchpad service"
+    echo "  status     - Check service status"
+    echo "  restart    - Restart the service"
+    echo "  url        - Show the remote-touchpad URL"
+    echo "  log        - View service logs"
+    echo "  uninstall  - Uninstall the service"
+    echo "  help       - Show this help message"
+}
+
+# Main command handler
+case "$1" in
+    install)
+        install
+        ;;
+    start)
+        start
+        ;;
+    stop)
+        stop
+        ;;
+    status)
+        status
+        ;;
+    restart)
+        restart
+        ;;
+    url)
+        url
+        ;;
+    log)
+        log
+        ;;
+    uninstall)
+        uninstall
+        ;;
+    help|--help|-h|"")
+        help
+        ;;
+    *)
+        echo "Unknown command: $1"
+        help
+        exit 1
+        ;;
+esac

snap/snapcraft.yaml

@@ -0,0 +1,61 @@
+# Build by running `snapcraft`.
+
+# WARNING:
+# Snapcraft uses caching for already build steps but it's buggy and can cause strange problems.
+# Clean the cache by running `snapcraft clean`.
+
+name: remote-touchpad
+license: GPL-3.0+
+grade: stable
+adopt-info: remote-touchpad
+
+base: core24
+confinement: strict
+
+platforms:
+  amd64:
+  arm64:
+
+apps:
+  remote-touchpad:
+    command: bin/remote-touchpad
+    plugs:
+      - network-bind
+      - desktop
+      - x11
+  remote-touchpad-wait-on-error:
+    command: bin/remote-touchpad-wait-on-error
+    plugs:
+      - network-bind
+      - desktop
+      - x11
+    common-id: com.github.unrud.RemoteTouchpad
+    desktop: usr/share/applications/com.github.unrud.RemoteTouchpad.desktop
+
+parts:
+  remote-touchpad:
+    plugin: go
+    go-buildtags:
+      - portal
+      - x11
+    source: .
+    source-type: git
+    build-snaps:
+      - go
+    build-packages:
+      - gcc
+      - libc6-dev
+      - libxt-dev
+      - libxrandr-dev
+      - libxtst-dev
+    stage-packages:
+      - libxt6
+      - libxrandr2
+      - libxtst6
+    override-build: |
+      craftctl default
+      install -Dm0755 -t "${CRAFT_PART_INSTALL}/bin" desktop/remote-touchpad-wait-on-error
+      install -Dm0644 -t "${CRAFT_PART_INSTALL}/usr/share/metainfo" desktop/com.github.unrud.RemoteTouchpad.metainfo.xml
+      install -Dm0644 -t "${CRAFT_PART_INSTALL}/usr/share/applications" desktop/com.github.unrud.RemoteTouchpad.desktop
+      install -Dm0644 -t "${CRAFT_PART_INSTALL}/usr/share/icons/hicolor/scalable/apps" desktop/com.github.unrud.RemoteTouchpad.svg
+    parse-info: [usr/share/metainfo/com.github.unrud.RemoteTouchpad.metainfo.xml]

terminal/qr.go

@@ -1,9 +1,9 @@
 /*
- *    Copyright (c) 2018 Unrud<unrud@outlook.com>
+ *    Copyright (c) 2018 Unrud <unrud@outlook.com>
  *
  *    This file is part of Remote-Touchpad.
  *
- *    Foobar is free software: you can redistribute it and/or modify
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
  *    it under the terms of the GNU General Public License as published by
  *    the Free Software Foundation, either version 3 of the License, or
  *    (at your option) any later version.
@@ -13,44 +13,50 @@
  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *    GNU General Public License for more details.
  *
- *   You should have received a copy of the GNU General Public License
+ *    You should have received a copy of the GNU General Public License
- *   along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package main
+package terminal
 
 import qrcode "github.com/skip2/go-qrcode"
 
-func GenerateQRCode(message string, invert bool) (string, error) {
+func GenerateQRCode(message string, colorize bool) (string, error) {
 	q, err := qrcode.New(message, qrcode.Medium)
 	if err != nil {
 		return "", err
 	}
-	return qrCodeToString(q.Bitmap(), invert), nil
+	return qrCodeToString(q.Bitmap(), colorize), nil
 }
 
-func qrCodeToString(bits [][]bool, invert bool) string {
+func qrCodeToString(bits [][]bool, colorize bool) string {
 	s := ""
 	for y := -1; y < len(bits); y += 2 {
+		if colorize {
+			s += ForegroundBlack + BackgroundWhite
+		}
 		for x := range bits[0] {
-			upper := !invert
+			upper := false
 			if 0 <= y && y < len(bits) {
 				upper = bits[y][x]
 			}
-			lower := !invert
+			lower := false
 			if 0 <= y+1 && y+1 < len(bits) {
 				lower = bits[y+1][x]
 			}
-			if upper != invert && lower != invert {
+			if upper && lower {
-				s += " "
+				s += "█"
-			} else if upper == invert && lower != invert {
+			} else if upper && !lower {
 				s += "▀"
-			} else if upper != invert && lower == invert {
+			} else if !upper && lower {
 				s += "▄"
 			} else {
-				s += "█"
+				s += " "
 			}
 		}
+		if colorize {
+			s += ForegroundReset + BackgroundReset
+		}
 		s += "\n"
 	}
 	return s

terminal/terminal.go

@@ -1,11 +1,9 @@
-// +build !portal
-
 /*
- *    Copyright (c) 2018 Unrud<unrud@outlook.com>
+ *    Copyright (c) 2018 Unrud <unrud@outlook.com>
  *
  *    This file is part of Remote-Touchpad.
  *
- *    Foobar is free software: you can redistribute it and/or modify
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
  *    it under the terms of the GNU General Public License as published by
  *    the Free Software Foundation, either version 3 of the License, or
  *    (at your option) any later version.
@@ -15,14 +13,15 @@
  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *    GNU General Public License for more details.
  *
- *   You should have received a copy of the GNU General Public License
+ *    You should have received a copy of the GNU General Public License
- *   along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package main
+package terminal
 
-import "errors"
+const (
-
+	ForegroundBlack string = "\033[30m"
-func InitPortalPlugin() (Plugin, error) {
+	ForegroundReset string = "\033[39m"
-	return nil, UnsupportedPlatformError{errors.New("disabled")}
+	BackgroundWhite string = "\033[47m"
-}
+	BackgroundReset string = "\033[49m"
+)

terminal/terminal_posix.go

@@ -0,0 +1,39 @@
+//go:build !windows
+
+/*
+ *    Copyright (c) 2018-2019 Unrud <unrud@outlook.com>
+ *
+ *    This file is part of Remote-Touchpad.
+ *
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    Remote-Touchpad is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package terminal
+
+// #include <unistd.h>
+import "C"
+import "os"
+
+func SupportsColor(fd uintptr) bool {
+	return C.isatty(C.int(fd)) != 0
+}
+
+func SetTitle(title string) bool {
+	if C.isatty(C.int(os.Stdout.Fd())) != 0 {
+		os.Stdout.Write([]byte("\x1b]2;" + title + "\x07"))
+		os.Stdout.Sync()
+		return true
+	}
+	return false
+}

terminal/terminal_windows.go

@@ -0,0 +1,49 @@
+/*
+ *    Copyright (c) 2018-2019 Unrud <unrud@outlook.com>
+ *
+ *    This file is part of Remote-Touchpad.
+ *
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    Remote-Touchpad is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package terminal
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+const (
+	enableProcessedOuput            uint32 = 0x1
+	enableWrapAtEolOutput           uint32 = 0x2
+	enableVirtualTerminalProcessing uint32 = 0x4
+)
+
+var (
+	kernel32DLL         = syscall.NewLazyDLL("kernel32.dll")
+	setConsoleModeProc  = kernel32DLL.NewProc("SetConsoleMode")
+	setConsoleTitleProc = kernel32DLL.NewProc("SetConsoleTitleW")
+)
+
+func SupportsColor(fd uintptr) bool {
+	r, _, _ := setConsoleModeProc.Call(fd, uintptr(enableProcessedOuput|
+		enableWrapAtEolOutput|enableVirtualTerminalProcessing))
+	return r != 0
+}
+
+func SetTitle(title string) bool {
+	r, _, _ := setConsoleTitleProc.Call(
+		uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(title))))
+	return r != 0
+}

webdata.go

@@ -0,0 +1,52 @@
+/*
+ *    Copyright (c) 2024 Unrud <unrud@outlook.com>
+ *
+ *    This file is part of Remote-Touchpad.
+ *
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    Remote-Touchpad is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package main
+
+import (
+	"embed"
+	"io/fs"
+	"log"
+	"mime"
+)
+
+//go:embed webdata/*
+var webdataFSWithPrefix embed.FS
+var webdataFS fs.FS
+
+var webdataTypes = map[string]string{
+	".css":  "text/css; charset=utf-8",
+	".html": "text/html; charset=utf-8",
+	".mjs":  "text/javascript; charset=utf-8",
+	".png":  "image/png",
+	".woff": "font/woff",
+}
+
+func init() {
+	var err error
+	webdataFS, err = fs.Sub(webdataFSWithPrefix, "webdata")
+	if err != nil {
+		log.Fatal(err)
+	}
+	for ext, typ := range webdataTypes {
+		if err := mime.AddExtensionType(ext, typ); err != nil {
+			log.Fatal(err)
+		}
+	}
+}

webdata/app/compat.mjs

@@ -0,0 +1,82 @@
+/*
+ *    Copyright (c) 2018-2019, 2023 Unrud <unrud@outlook.com>
+ *
+ *    This file is part of Remote-Touchpad.
+ *
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    Remote-Touchpad is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+export const fullscreenEnabled = () => {
+    return (document.fullscreenEnabled ||
+        document.webkitFullscreenEnabled ||
+        false);
+};
+
+export const requestFullscreen = (element, options) => {
+    if (element.requestFullscreen) {
+        element.requestFullscreen(options);
+    } else if (element.webkitRequestFullscreen) {
+        element.webkitRequestFullscreen(options);
+    }
+};
+
+export const exitFullscreen = () => {
+    if (document.exitFullscreen) {
+        document.exitFullscreen();
+    } else if (document.webkitExitFullscreen) {
+        document.webkitExitFullscreen();
+    }
+};
+
+export const fullscreenElement = () => {
+    return (document.fullscreenElement ||
+        document.webkitFullscreenElement ||
+        null);
+};
+
+export const addFullscreenchangeEventListener = (listener) => {
+    if ("onfullscreenchange" in document) {
+        document.addEventListener("fullscreenchange", listener);
+    } else if ("onwebkitfullscreenchange" in document) {
+        document.addEventListener("webkitfullscreenchange", listener);
+    }
+};
+
+export const requestPointerLock = (element) => {
+    if (element.requestPointerLock) {
+        element.requestPointerLock();
+    }
+};
+
+export const exitPointerLock = () => {
+    if (document.exitPointerLock) {
+        document.exitPointerLock();
+    }
+};
+
+export const pointerLockElement = () => {
+    return document.pointerLockElement || null;
+};
+
+export const addPointerlockchangeEventListener = (listener) => {
+    if ("onpointerlockchange" in document) {
+        document.addEventListener("pointerlockchange", listener);
+    }
+};
+
+export const vibrate = (pattern) => {
+    if (navigator.vibrate) {
+        navigator.vibrate(pattern);
+    }
+};

webdata/app/inputcontroller.mjs

@@ -0,0 +1,121 @@
+/*
+ *    Copyright (c) 2018-2019, 2023 Unrud <unrud@outlook.com>
+ *
+ *    This file is part of Remote-Touchpad.
+ *
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    Remote-Touchpad is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+export const POINTER_BUTTON_LEFT = 0;
+export const POINTER_BUTTON_RIGHT = 1;
+export const POINTER_BUTTON_MIDDLE = 2;
+
+export const KEY_VOLUME_MUTE = 0;
+export const KEY_VOLUME_DOWN = 1;
+export const KEY_VOLUME_UP = 2;
+export const KEY_MEDIA_PLAY_PAUSE = 3;
+export const KEY_MEDIA_PREV_TRACK = 4;
+export const KEY_MEDIA_NEXT_TRACK = 5;
+export const KEY_BROWSER_BACK = 6;
+export const KEY_BROWSER_FORWARD = 7;
+export const KEY_SUPER = 8;
+export const KEY_LEFT = 9;
+export const KEY_RIGHT = 10;
+export const KEY_UP = 11;
+export const KEY_DOWN = 12;
+export const KEY_HOME = 13;
+export const KEY_END = 14;
+export const KEY_BACK_SPACE = 15;
+export const KEY_DELETE = 16;
+export const KEY_RETURN = 17;
+
+export default class InputController {
+    #updateRate = 0;
+
+    #moveXSum = 0;
+    #moveYSum = 0;
+    #scrollHSum = 0;
+    #scrollVSum = 0;
+    #scrolling = false;
+    #scrollFinish = false;
+    #updateTimeoutActive = false;
+    #socket;
+
+    constructor(socket) {
+        this.#socket = socket;
+    }
+
+    configure(config) {
+        this.#updateRate = config.updateRate;
+    }
+
+    #startUpdate(fromTimeout) {
+        if (this.#updateTimeoutActive && !fromTimeout) {
+            return;
+        }
+        this.#updateTimeoutActive = false;
+        let finished = true;
+        const xInt = Math.trunc(this.#moveXSum);
+        const yInt = Math.trunc(this.#moveYSum);
+        if (xInt != 0 || yInt != 0) {
+            this.#socket.send("m" + xInt + ";" + yInt);
+            this.#moveXSum -= xInt;
+            this.#moveYSum -= yInt;
+            finished = false;
+        }
+        const hInt = Math.trunc(this.#scrollHSum);
+        const vInt = Math.trunc(this.#scrollVSum);
+        if (hInt != 0 || vInt != 0) {
+            this.#socket.send((this.#scrollFinish ? "S" : "s") + hInt + ";" + vInt);
+            this.#scrollHSum -= hInt;
+            this.#scrollVSum -= vInt;
+            this.#scrolling = !this.#scrollFinish;
+            this.#scrollFinish = false;
+            finished = false;
+        } else if (this.#scrollFinish && this.#scrolling) {
+            this.#socket.send("S");
+            this.#scrolling = false;
+            this.#scrollFinish = false;
+        }
+        this.#updateTimeoutActive = !finished && this.#updateRate > 0;
+        if (this.#updateTimeoutActive) {
+            setTimeout(this.#startUpdate.bind(this), 1000 / this.#updateRate, true);
+        }
+    }
+
+    pointerMove(deltaX, deltaY) {
+        this.#moveXSum += deltaX;
+        this.#moveYSum += deltaY;
+        this.#startUpdate();
+    }
+
+    pointerScroll(deltaHorizontal, deltaVertical, finish) {
+        this.#scrollHSum += deltaHorizontal;
+        this.#scrollVSum += deltaVertical;
+        this.#scrollFinish |= finish;
+        this.#startUpdate();
+    };
+
+    pointerButton(button, press) {
+        this.#socket.send("b" + button + ";" + (press ? 1 : 0));
+    }
+
+    keyboardKey(key) {
+        this.#socket.send("k" + key);
+    }
+
+    keyboardText(text) {
+        this.#socket.send("t" + text);
+    }
+}

webdata/app/keyboard.mjs

@@ -0,0 +1,74 @@
+/*
+ *    Copyright (c) 2018-2019, 2023 Unrud <unrud@outlook.com>
+ *
+ *    This file is part of Remote-Touchpad.
+ *
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    Remote-Touchpad is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import {
+    KEY_SUPER, KEY_BACK_SPACE, KEY_RETURN, KEY_DELETE, KEY_HOME, KEY_END,
+    KEY_LEFT, KEY_RIGHT, KEY_UP, KEY_DOWN,
+} from "./inputcontroller.mjs";
+
+export default class Keyboard {
+    #inputController;
+    #checkAllowedCallback;
+
+    constructor(inputController, checkAllowedCallback) {
+        this.#inputController = inputController;
+        this.#checkAllowedCallback = checkAllowedCallback;
+        document.addEventListener("keydown", this.#handleKeydown.bind(this));
+    }
+
+    configure() {}
+
+    #handleKeydown(event) {
+        if (!this.#checkAllowedCallback() ||
+            event.ctrlKey || event.altKey || event.isComposing) {
+            return;
+        }
+        let key = null;
+        if (event.key == "OS" || event.key == "Super" || event.key == "Meta") {
+            key = KEY_SUPER;
+        } else if (event.key == "Backspace") {
+            key = KEY_BACK_SPACE;
+        } else if (event.key == "Enter") {
+            key = KEY_RETURN;
+        } else if (event.key == "Delete") {
+            key = KEY_DELETE;
+        } else if (event.key == "Home") {
+            key = KEY_HOME;
+        } else if (event.key == "End") {
+            key = KEY_END;
+        } else if (event.key == "Left" || event.key == "ArrowLeft") {
+            key = KEY_LEFT;
+        } else if (event.key == "Right" || event.key == "ArrowRight") {
+            key = KEY_RIGHT;
+        } else if (event.key == "Up" || event.key == "ArrowUp") {
+            key = KEY_UP;
+        } else if (event.key == "Down" || event.key == "ArrowDown") {
+            key = KEY_DOWN;
+        }
+        if (key != null) {
+            if (!event.shiftKey) {
+                event.preventDefault();
+                this.#inputController.keyboardKey(key);
+            }
+        } else if (event.key.length == 1) {
+            event.preventDefault();
+            this.#inputController.keyboardText(event.key);
+        }
+    }
+}

webdata/app/main.mjs

@@ -0,0 +1,53 @@
+/*
+ *    Copyright (c) 2018-2019, 2023 Unrud <unrud@outlook.com>
+ *
+ *    This file is part of Remote-Touchpad.
+ *
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    Remote-Touchpad is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import InputController, * as inputcontrollerModule from "./inputcontroller.mjs";
+import Socket from "./socket.mjs";
+import UI from "./ui.mjs";
+
+const url = new URL("ws", location.href);
+url.protocol = url.protocol == "http:" ? "ws:" : "wss:";
+
+const socket = new Socket(url, window.location.hash.substr(1));
+const inputController = new InputController(socket);
+const ui = new UI(inputController);
+
+socket.addEventListener("config", (event) => {
+    const config = event.detail;
+    inputController.configure(config);
+    ui.configure(config);
+});
+
+socket.addEventListener("close", () => {
+    ui.close();
+});
+
+window.app = {
+    key: inputController.keyboardKey.bind(inputController),
+    text: inputController.keyboardText.bind(inputController),
+    toggleFullscreen: ui.toggleFullscreen.bind(ui),
+    showTextInput: ui.showTextInput.bind(ui),
+    showKeys: ui.showKeys.bind(ui),
+    setKeysPage: ui.setKeysPage.bind(ui),
+};
+for (const name in inputcontrollerModule) {
+    if (name.startsWith("KEY_")) {
+        window.app[name] = inputcontrollerModule[name];
+    }
+}

webdata/app/mouse.mjs

@@ -0,0 +1,74 @@
+/*
+ *    Copyright (c) 2018-2019, 2023 Unrud <unrud@outlook.com>
+ *
+ *    This file is part of Remote-Touchpad.
+ *
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    Remote-Touchpad is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+export default class Mouse {
+    #moveSpeed = 1;
+    #scrollSpeed = 1;
+
+    #buttons = 0;
+    #inputController;
+
+    constructor (inputController, element) {
+        this.#inputController = inputController;
+        for (const type of ["touchstart", "touchend", "touchcancel", "touchmove"]) {
+            element.addEventListener(type, (event) => {
+                event.preventDefault();
+            });
+        }
+        element.addEventListener("mousedown", this.#handleMouseDownAndUp.bind(this));
+        element.addEventListener("mouseup", this.#handleMouseDownAndUp.bind(this));
+        element.addEventListener("mousemove", this.#handleMousemove.bind(this));
+        element.addEventListener("wheel", this.#handleWheel.bind(this));
+    }
+
+    configure(config) {
+        this.#moveSpeed = config.mouseMoveSpeed;
+        this.#scrollSpeed = config.mouseScrollSpeed;
+    }
+
+    #updateButtons(newButtons) {
+        for (let button = 0; button < 3; button += 1) {
+            const flag = 1 << button;
+            if ((newButtons&flag) != (this.#buttons & flag)) {
+                this.#inputController.pointerButton(button, newButtons & flag);
+            }
+        }
+        this.#buttons = newButtons;
+    }
+
+    #handleMouseDownAndUp(event) {
+        this.#updateButtons(event.buttons);
+    }
+
+    #handleMousemove(event) {
+        this.#inputController.pointerMove(
+            event.movementX * this.#moveSpeed, event.movementY * this.#moveSpeed);
+    }
+
+    #handleWheel(event) {
+        if (event.deltaMode == WheelEvent.DOM_DELTA_PIXEL) {
+            this.#inputController.pointerScroll(
+                event.deltaX * this.#scrollSpeed, event.deltaY * this.#scrollSpeed, true);
+        } else if (event.deltaMode == WheelEvent.DOM_DELTA_LINE) {
+            this.#inputController.pointerScroll(
+                event.deltaX * 20 * this.#scrollSpeed, event.deltaY * 20 * this.#scrollSpeed,
+                true);
+        }
+    }
+}

webdata/app/socket.mjs

@@ -0,0 +1,66 @@
+/*
+ *    Copyright (c) 2018-2019, 2023 Unrud <unrud@outlook.com>
+ *
+ *    This file is part of Remote-Touchpad.
+ *
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    Remote-Touchpad is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import jsSHA from "./sha256.mjs"
+
+const challengeResponse = (message, secret) => {
+    const shaObj = new jsSHA("SHA-256", "TEXT");
+    shaObj.setHMACKey(message, "TEXT");
+    shaObj.update(secret);
+    return btoa(shaObj.getHMAC("BYTES"));
+};
+
+export default class Socket extends EventTarget {
+    #secret;
+    #authenticated;
+    #ws;
+
+    constructor(url, secret) {
+        super();
+        this.#secret = secret;
+        this.#authenticated = false;
+        this.#ws = new WebSocket(url);
+        this.#ws.addEventListener("message", this.#handle_ws_message.bind(this));
+        this.#ws.addEventListener("close", this.#handle_ws_close.bind(this));
+    }
+
+    #handle_ws_message(event) {
+        if (!this.#authenticated) {
+            this.#ws.send(challengeResponse(event.data, this.#secret));
+            this.#authenticated = true;
+            return;
+        }
+        let config;
+        try {
+            config = JSON.parse(event.data);
+        } catch (e) {
+            this.#ws.close();
+            throw (e);
+        }
+        this.dispatchEvent(new CustomEvent("config", {detail: config}));
+    }
+
+    #handle_ws_close() {
+        this.dispatchEvent(new CustomEvent("close"));
+    }
+
+    send(message) {
+        this.#ws.send(message);
+    }
+}

webdata/app/touchpad.mjs

@@ -0,0 +1,232 @@
+/*
+ *    Copyright (c) 2018-2019, 2023 Unrud <unrud@outlook.com>
+ *
+ *    This file is part of Remote-Touchpad.
+ *
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    Remote-Touchpad is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import {POINTER_BUTTON_LEFT, POINTER_BUTTON_MIDDLE, POINTER_BUTTON_RIGHT} from "./inputcontroller.mjs";
+
+// [1 Touch, 2 Touches, 3 Touches] (as pixel)
+const TOUCH_MOVE_THRESHOLD = [10, 15, 15];
+// Max time between consecutive touches for clicking or dragging (as milliseconds)
+const TOUCH_TIMEOUT = 250;
+// [[pixel/second, multiplicator], ...]
+const POINTER_ACCELERATION = [
+    [0, 0],
+    [87, 1],
+    [173, 1],
+    [553, 2],
+];
+
+const copyTouch = (touch, timeStamp) => ({
+    identifier: touch.identifier,
+    pageX: touch.pageX,
+    pageXStart: touch.pageX,
+    pageY: touch.pageY,
+    pageYStart: touch.pageY,
+    timeStamp: timeStamp,
+});
+
+const calculateAccelerationMult = (speed) => {
+    for (let i = 0; i < POINTER_ACCELERATION.length; i += 1) {
+        const s2 = POINTER_ACCELERATION[i][0];
+        const a2 = POINTER_ACCELERATION[i][1];
+        if (s2 <= speed) {
+            continue;
+        }
+        if (i == 0) {
+            return a2;
+        }
+        const s1 = POINTER_ACCELERATION[i - 1][0];
+        const a1 = POINTER_ACCELERATION[i - 1][1];
+        return ((speed - s1) / (s2 - s1)) * (a2 - a1) + a1;
+    }
+    if (POINTER_ACCELERATION.length > 0) {
+        return POINTER_ACCELERATION[POINTER_ACCELERATION.length - 1][1];
+    }
+    return 1;
+};
+
+export default class Touchpad {
+    #moveSpeed = 1;
+    #scrollSpeed = 1;
+
+    #moved = false;
+    #startTimeStamp = 0;
+    #lastEndTimeStamp = 0;
+    #releasedCount = 0;
+    #ongoingTouches = [];
+    #dragging = false;
+    #draggingTimeout = null;
+    #inputController;
+    #checkAllowedCallback;
+
+    constructor(inputController, checkAllowedCallback) {
+        this.#inputController = inputController;
+        this.#checkAllowedCallback = checkAllowedCallback;
+        document.addEventListener("touchstart", this.#handleTouchstart.bind(this));
+        document.addEventListener("touchend", this.#handleTouchend.bind(this));
+        document.addEventListener("touchcancel", this.#handleTouchend.bind(this));
+        document.addEventListener("touchmove", this.#handleTouchmove.bind(this));
+    }
+
+    configure(config) {
+        this.#moveSpeed = config.moveSpeed;
+        this.#scrollSpeed = config.scrollSpeed;
+    }
+
+    #ongoingTouchIndexById(idToFind) {
+        for (let i = 0; i < this.#ongoingTouches.length; i += 1) {
+            if (this.#ongoingTouches[i].identifier == idToFind) {
+                return i;
+            }
+        }
+        return -1;
+    }
+
+    #handleDraggingTimeout() {
+        this.#draggingTimeout = null;
+        this.#inputController.pointerButton(POINTER_BUTTON_LEFT, false);
+    }
+
+    #handleTouchstart(event) {
+        // Might get called multiple times for the same touches
+        if (this.#ongoingTouches.length == 0) {
+            this.#startTimeStamp = event.timeStamp;
+            this.#moved = false;
+        }
+        const touches = event.changedTouches;
+        let foundTouch = false;
+        for (let i = 0; i < touches.length; i += 1) {
+            if (this.#ongoingTouches.length == 0 &&
+                !this.#checkAllowedCallback(touches[i].target)) {
+                continue;
+            }
+            foundTouch = true;
+            const touch = copyTouch(touches[i], event.timeStamp);
+            const idx = this.#ongoingTouchIndexById(touch.identifier);
+            if (idx < 0) {
+                this.#ongoingTouches.push(touch);
+            } else {
+                this.#ongoingTouches[idx] = touch;
+            }
+        }
+        if (!foundTouch) {
+            return;
+        }
+        event.preventDefault();
+        this.#lastEndTimeStamp = 0;
+        if (this.#draggingTimeout != null) {
+            clearTimeout(this.#draggingTimeout);
+            this.#draggingTimeout = null;
+            this.#dragging = true;
+        }
+        this.#inputController.pointerScroll(0, 0, true);
+    }
+
+    #handleTouchend(event) {
+        const touches = event.changedTouches;
+        let foundTouch = false;
+        for (let i = 0; i < touches.length; i += 1) {
+            const idx = this.#ongoingTouchIndexById(touches[i].identifier);
+            if (idx < 0) {
+                continue;
+            }
+            foundTouch = true;
+            this.#ongoingTouches.splice(idx, 1);
+            this.#releasedCount += 1;
+        }
+        if (!foundTouch) {
+            return;
+        }
+        event.preventDefault();
+        this.#lastEndTimeStamp = event.timeStamp;
+        this.#inputController.pointerScroll(0, 0, true);
+        if (this.#releasedCount > TOUCH_MOVE_THRESHOLD.length) {
+            this.#moved = true;
+        }
+        if (this.#ongoingTouches.length == 0 && this.#releasedCount >= 1) {
+            if (this.#dragging) {
+                this.#dragging = false;
+                this.#inputController.pointerButton(POINTER_BUTTON_LEFT, false);
+            }
+            if (!this.#moved && event.timeStamp - this.#startTimeStamp < TOUCH_TIMEOUT) {
+                let button = 0;
+                if (this.#releasedCount == 1) {
+                    button = POINTER_BUTTON_LEFT;
+                } else if (this.#releasedCount == 2) {
+                    button = POINTER_BUTTON_RIGHT;
+                } else if (this.#releasedCount == 3) {
+                    button = POINTER_BUTTON_MIDDLE;
+                }
+                this.#inputController.pointerButton(button, true);
+                if (button == POINTER_BUTTON_LEFT) {
+                    this.#draggingTimeout = setTimeout(
+                        this.#handleDraggingTimeout.bind(this), TOUCH_TIMEOUT);
+                } else {
+                    this.#inputController.pointerButton(button, false);
+                }
+            }
+            this.#releasedCount = 0;
+        }
+    }
+
+    #handleTouchmove(event) {
+        let sumX = 0;
+        let sumY = 0;
+        const touches = event.changedTouches;
+        let foundTouch = false;
+        for (let i = 0; i < touches.length; i += 1) {
+            const idx = this.#ongoingTouchIndexById(touches[i].identifier);
+            if (idx < 0) {
+                continue;
+            }
+            foundTouch = true;
+            if (!this.#moved) {
+                const dist = Math.sqrt(
+                    Math.pow(touches[i].pageX - this.#ongoingTouches[idx].pageXStart, 2) +
+                    Math.pow(touches[i].pageY - this.#ongoingTouches[idx].pageYStart, 2)
+                );
+                if (this.#ongoingTouches.length > TOUCH_MOVE_THRESHOLD.length ||
+                    dist > TOUCH_MOVE_THRESHOLD[this.#ongoingTouches.length - 1] ||
+                    event.timeStamp - this.#startTimeStamp >= TOUCH_TIMEOUT) {
+                    this.#moved = true;
+                }
+            }
+            const dx = touches[i].pageX - this.#ongoingTouches[idx].pageX;
+            const dy = touches[i].pageY - this.#ongoingTouches[idx].pageY;
+            const timeDelta = event.timeStamp - this.#ongoingTouches[idx].timeStamp;
+            sumX += dx * calculateAccelerationMult(Math.abs(dx) / timeDelta * 1000);
+            sumY += dy * calculateAccelerationMult(Math.abs(dy) / timeDelta * 1000);
+            this.#ongoingTouches[idx].pageX = touches[i].pageX;
+            this.#ongoingTouches[idx].pageY = touches[i].pageY;
+            this.#ongoingTouches[idx].timeStamp = event.timeStamp;
+        }
+        if (!foundTouch) {
+            return;
+        }
+        event.preventDefault();
+        if (this.#moved && event.timeStamp - this.#lastEndTimeStamp >= TOUCH_TIMEOUT) {
+            if (this.#ongoingTouches.length == 1 || this.#dragging) {
+                this.#inputController.pointerMove(
+                    sumX * this.#moveSpeed, sumY * this.#moveSpeed);
+            } else if (this.#ongoingTouches.length == 2) {
+                this.#inputController.pointerScroll(
+                    -sumX * this.#scrollSpeed, -sumY * this.#scrollSpeed, false);
+            }
+        }
+    }
+}

webdata/app/ui.mjs

@@ -0,0 +1,199 @@
+/*
+ *    Copyright (c) 2018-2019, 2023 Unrud <unrud@outlook.com>
+ *
+ *    This file is part of Remote-Touchpad.
+ *
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    Remote-Touchpad is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import Keyboard from "./keyboard.mjs";
+import Mouse from "./mouse.mjs";
+import Touchpad from "./touchpad.mjs";
+import * as compat from "./compat.mjs";
+
+const IGNORE_CLICK_AFTER_TOUCH_DURATION = 1000; // milliseconds
+const CLICK_VIBRATION_PATTERN = [10];
+
+const buttons = document.querySelectorAll("button");
+const scenes = document.querySelectorAll("body > .scene");
+const openingScene = document.getElementById("opening");
+const closedScene = document.getElementById("closed");
+const padScene = document.getElementById("pad");
+const keysScene = document.getElementById("keys");
+const keysPages = keysScene.querySelectorAll(":scope > .page");
+const textInputScene = document.getElementById("text-input");
+const textInput = textInputScene.querySelector("textarea");
+const mouseScene = document.getElementById("mouse");
+const sendText = document.getElementById("send-text");
+
+export default class UI {
+    #activeScene = null;
+    #keysActiveName = "";
+    #ready = false;
+    #closed = false;
+    #ignoreClickUntilTimeStamp = Number.MIN_VALUE;
+    #inputController;
+    #mouse;
+    #keyboard;
+    #touchpad;
+
+    constructor(inputController) {
+        this.#inputController = inputController;
+        this.#mouse = new Mouse(inputController, mouseScene);
+        this.#keyboard = new Keyboard(inputController,
+            () => this.#activeScene?.classList.contains("keyboard-input"));
+        this.#touchpad = new Touchpad(inputController,
+            (target) => target.classList.contains("touch-input"));
+        document.addEventListener("mousedown", this.#handleMousedown.bind(this));
+        document.addEventListener("touchend", this.#handleTouchend.bind(this));
+        textInput.addEventListener("input", () => { this.#updateTextInput(); });
+        sendText.addEventListener("click", this.#handleSendText.bind(this));
+        window.addEventListener("popstate", () => { this.#update(); });
+        compat.addFullscreenchangeEventListener(() => { this.#update(); });
+        compat.addPointerlockchangeEventListener(() => { this.#update(); });
+        for (const button of buttons) {
+            button.setAttribute("tabindex", "-1");
+            button.addEventListener("click", this.#handleButtonClick.bind(this));
+        }
+        this.#update();
+    }
+
+   configure(config) {
+        this.#mouse.configure(config);
+        this.#keyboard.configure(config);
+        this.#touchpad.configure(config);
+        if (!this.#closed) {
+            this.#ready = true;
+        }
+        this.#update();
+    }
+
+    close() {
+        this.#ready = false;
+        this.#closed = true;
+        this.#update();
+    }
+
+    #handleTouchend(event) {
+        // HACK: event.preventDefault doesn't reliably stop click events in Firefox (112)
+        this.#ignoreClickUntilTimeStamp = event.timeStamp + IGNORE_CLICK_AFTER_TOUCH_DURATION;
+    }
+    
+    #handleMousedown(event) {
+        if (this.#activeScene != mouseScene && event.buttons == 1 &&
+            this.#ignoreClickUntilTimeStamp <= event.timeStamp &&
+            event.target.classList.contains("mouse-input")) {
+            compat.requestPointerLock(mouseScene);
+        }
+    }
+
+    #updateTextInput(newValue = null) {
+        if (newValue != null) {
+            textInput.value = newValue;
+        }
+        sessionStorage.setItem("text-input", textInput.value);
+        sendText.textContent = sendText.getAttribute(`data-${textInput.value ? "send" : "back"}-content`);
+        textInput.focus();
+    }
+
+    #handleButtonClick(event) {
+        event.target.classList.add("click");
+        setTimeout(() => event.target.classList.remove("click"), 0);
+        compat.vibrate(CLICK_VIBRATION_PATTERN);
+    }
+
+    #handleSendText() {
+        if (textInput.value) {
+            // normalize line endings
+            const text = textInput.value.replace(/\r\n?/g, "\n");
+            this.#inputController.keyboardText(text);
+            this.#updateTextInput("");
+        } else {
+            history.back();
+        }
+    }
+
+    #showScene(scene) {
+        this.#activeScene = scene;
+        if (compat.fullscreenElement() && !scene.classList.contains("allow-fullscreen")) {
+            compat.exitFullscreen();
+        }
+        if (compat.pointerLockElement() && this.#activeScene != mouseScene) {
+            compat.exitPointerLock();
+        }
+        textInput.value = "";
+        for (const otherScene of scenes) {
+            otherScene.classList.toggle("hidden", otherScene != scene);
+        }
+    }
+
+    setKeysPage(index, relative = false) {
+        if (relative) {
+            for (let i = 0; i < keysPages.length && keysPages[i].classList.contains("hidden");
+                 i += 1, index += 1);
+        }
+        index = ((index % keysPages.length) + keysPages.length) % keysPages.length;
+        sessionStorage.setItem(this.#keysActiveName, index);
+        for (let i = 0; i < keysPages.length; i += 1) {
+            keysPages[i].classList.toggle("hidden", i != index);
+        }
+    }
+
+    showKeys(name = "", defaultPageIndex = 0) {
+        this.#showScene(keysScene);
+        this.#keysActiveName = "keys" + (name ? ":" + name : "");
+        let pageIndex = parseInt(sessionStorage.getItem(this.#keysActiveName));
+        if (isNaN(pageIndex)) {
+            pageIndex = defaultPageIndex;
+        }
+        this.setKeysPage(pageIndex);
+        if (history.state != this.#keysActiveName) {
+            history.pushState(this.#keysActiveName, "");
+        }
+    }
+
+    showTextInput() {
+        this.#showScene(textInputScene);
+        this.#updateTextInput(sessionStorage.getItem("text-input") || "");
+        if (history.state != "text-input") {
+            history.pushState("text-input", "");
+        }
+    }
+
+    toggleFullscreen() {
+        if (compat.fullscreenElement()) {
+            compat.exitFullscreen();
+        } else {
+            compat.requestFullscreen(document.documentElement, {navigationUI: "hide"});
+        }
+    }
+
+    #update() {
+        const fullscreenEnabled = compat.fullscreenEnabled();
+        for (const element of document.querySelectorAll(".visble-if-fullscreen-enabled")) {
+            element.classList.toggle("hidden", !fullscreenEnabled);
+        }
+        if (!this.#ready) {
+            this.#showScene(this.#closed ? closedScene : openingScene);
+        } else if (compat.pointerLockElement()) {
+            this.#showScene(mouseScene);
+        } else if ((history.state || "").split(":")[0] == "keys") {
+            this.showKeys(history.state.substr("keys:".length));
+        } else if (history.state == "text-input") {
+            this.showTextInput();
+        } else {
+            this.#showScene(padScene);
+        }
+    }
+}

webdata/fn.js

@@ -1,385 +0,0 @@
-/*
- *    Copyright (c) 2018 Unrud<unrud@outlook.com>
- *
- *    This file is part of Remote-Touchpad.
- *
- *    Foobar is free software: you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation, either version 3 of the License, or
- *    (at your option) any later version.
- *
- *    Remote-Touchpad is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
- */
-
- // [1 Touch, 2 Touches, 3 Touches]
-const TOUCH_MOVE_THRESHOLD = [10, 15, 15];
-const TOUCH_TIMEOUT = 250;
-// [[px/s, mult], ...]
-const POINTER_ACCELERATION = [[0, 0], [87, 1], [173, 1], [553, 2]];
-
-var ws;
-var pad;
-var padlabel;
-
-var touchMoved = false;
-var touchStart = 0;
-var touchLastEnd = 0;
-var touchReleasedCount = 0;
-var ongoingTouches = [];
-var moveXSum = 0;
-var moveYSum = 0;
-var scrollXSum = 0;
-var scrollYSum = 0;
-var dragging = false;
-var draggingTimeout = null;
-var scrolling = false;
-
-function fullscreenEnabled() {
-    return (document.fullscreenEnabled ||
-        document.webkitFullscreenEnabled ||
-        document.mozFullScreenEnabled ||
-        document.msFullscreenEnabled ||
-        false);
-}
-
-function requestFullscreen(e) {
-    if (e.requestFullscreen) {
-        e.requestFullscreen();
-    } else if (e.webkitRequestFullscreen) {
-        e.webkitRequestFullscreen();
-    } else if (e.mozRequestFullScreen) {
-        e.mozRequestFullScreen();
-    } else if (e.msRequestFullscreen) {
-        e.msRequestFullscreen();
-    }
-}
-
-function exitFullscreen() {
-    if (document.exitFullscreen) {
-        document.exitFullscreen();
-    } else if (document.webkitExitFullscreen) {
-        document.webkitExitFullscreen();
-    } else if (document.mozCancelFullScreen) {
-        document.mozCancelFullScreen();
-    } else if (document.msExitFullscreen) {
-        document.msExitFullscreen();
-    }
-}
-
-function fullscreenElement() {
-    return (document.fullscreenElement ||
-        document.webkitFullscreenElement ||
-        document.mozFullScreenElement ||
-        document.msFullscreenElement ||
-        null);
-}
-
-function addFullscreenchangeEventListener(listener) {
-    if (document.fullscreenElement !== undefined) {
-        document.addEventListener("fullscreenchange", listener);
-    } else if (document.webkitFullscreenElement !== undefined) {
-        document.addEventListener("webkitfullscreenchange", listener);
-    } else if (document.mozFullScreenElement !== undefined) {
-        document.addEventListener("mozfullscreenchange", listener);
-    } else if (document.msFullscreenElement !== undefined) {
-        document.addEventListener("MSFullscreenChange", listener);
-    }
-}
-
-function copyTouch(touch, timeStamp) {
-    return {
-        identifier: touch.identifier,
-        pageX: touch.pageX,
-        pageXStart: touch.pageX,
-        pageY: touch.pageY,
-        pageYStart: touch.pageY,
-        timeStamp: timeStamp
-    };
-}
-
-function ongoingTouchIndexById(idToFind) {
-    for (var i = 0; i < ongoingTouches.length; i++) {
-        var id = ongoingTouches[i].identifier;
-
-        if (id == idToFind) {
-            return i;
-        }
-    }
-    return -1;
-}
-
-function calculatePointerAccelerationMult(speed) {
-    for (var i = 0; i < POINTER_ACCELERATION.length; i++) {
-        s2 = POINTER_ACCELERATION[i][0];
-        a2 = POINTER_ACCELERATION[i][1];
-        if (s2 <= speed) {
-            continue;
-        }
-        if (i == 0) {
-            return a2;
-        }
-        s1 = POINTER_ACCELERATION[i-1][0];
-        a1 = POINTER_ACCELERATION[i-1][1];
-        return ((speed-s1) / (s2-s1)) * (a2-a1) + a1;
-    }
-    if (POINTER_ACCELERATION.length > 0) {
-        return POINTER_ACCELERATION[POINTER_ACCELERATION.length-1][1];
-    }
-    return 1;
-}
-
-function onDraggingTimeout() {
-    draggingTimeout = null;
-    ws.send("b1;0");
-}
-
-function updateMoveAndScroll() {
-    var moveX = Math.trunc(moveXSum);
-    var moveY = Math.trunc(moveYSum);
-    if (Math.abs(moveX) >= 1 || Math.abs(moveY) >= 1) {
-        moveXSum -= moveX;
-        moveYSum -= moveY;
-        ws.send("m" + moveX + ";" + moveY);
-    }
-    var scrollX = Math.trunc(scrollXSum);
-    var scrollY = Math.trunc(scrollYSum);
-    if (Math.abs(scrollX) >= 1 || Math.abs(scrollY) >= 1) {
-        scrollXSum -= scrollX;
-        scrollYSum -= scrollY;
-        scrolling = true;
-        ws.send("s" + scrollX + ";" + scrollY);
-    }
-}
-
-function handleStart(evt) {
-    if (ongoingTouches.length == 0) {
-        touchStart = evt.timeStamp;
-        touchMoved = false;
-        touchReleasedCount = 0;
-        dragging = false;
-    }
-    var touches = evt.changedTouches;
-    for (var i = 0; i < touches.length; i++) {
-        if (touches[i].target !== pad && touches[i].target !== padlabel) {
-            continue;
-        }
-        evt.preventDefault();
-        ongoingTouches.push(copyTouch(touches[i], evt.timeStamp));
-        touchLastEnd = 0;
-        if (!dragging) {
-            moveXSum = Math.trunc(moveXSum);
-            moveYSum = Math.trunc(moveYSum);
-        }
-        scrollXSum = Math.trunc(scrollXSum);
-        scrollYSum = Math.trunc(scrollYSum);
-        if (draggingTimeout !== null) {
-            clearTimeout(draggingTimeout);
-            draggingTimeout = null;
-            dragging = true;
-        }
-        if (scrolling) {
-            ws.send("sf");
-            scrolling = false;
-        }
-    }
-}
-
-function handleEnd(evt) {
-    var touches = evt.changedTouches;
-    for (var i = 0; i < touches.length; i++) {
-        var idx = ongoingTouchIndexById(touches[i].identifier);
-        if (idx < 0) {
-            continue;
-        }
-        ongoingTouches.splice(idx, 1);
-        touchReleasedCount++;
-        touchLastEnd = evt.timeStamp;
-        if (scrolling) {
-            ws.send("sf");
-            scrolling = false;
-        }
-    }
-    if (touchReleasedCount > TOUCH_MOVE_THRESHOLD.length) {
-        touchMoved = true;
-    }
-    if (ongoingTouches.length == 0 && touchReleasedCount >= 1 &&
-            dragging) {
-        ws.send("b1;0");
-    }
-    if (ongoingTouches.length == 0 && touchReleasedCount >= 1 &&
-            !touchMoved && evt.timeStamp - touchStart < TOUCH_TIMEOUT) {
-        var button = 0;
-        if (touchReleasedCount == 1) {
-            button = 1;
-        } else if (touchReleasedCount == 2) {
-            button = 3;
-        }else if (touchReleasedCount == 3) {
-            button = 2;
-        }
-        ws.send("b" + button + ";1");
-        if (button == 1) {
-            draggingTimeout = setTimeout(onDraggingTimeout, TOUCH_TIMEOUT);
-        } else {
-            ws.send("b" + button + ";0");
-        }
-    }
-}
-
-function handleCancel(evt) {
-    var touches = evt.changedTouches;
-    for (var i = 0; i < touches.length; i++) {
-        var idx = ongoingTouchIndexById(touches[i].identifier);
-        if (idx < 0) {
-            continue;
-        }
-        ongoingTouches.splice(idx, 1);
-        touchReleasedCount++;
-        touchLastEnd = evt.timeStamp;
-        touchMoved = true;
-        if (scrolling) {
-            ws.send("sf");
-            scrolling = false;
-        }
-    }
-}
-
-function handleMove(evt) {
-    var sumX = 0;
-    var sumY = 0;
-    var touches = evt.changedTouches;
-    for (var i = 0; i < touches.length; i++) {
-        var idx = ongoingTouchIndexById(touches[i].identifier);
-        if (idx < 0) {
-            continue;
-        }
-        var dist = Math.sqrt(Math.pow(touches[i].pageX - ongoingTouches[idx].pageXStart, 2) + Math.pow(touches[i].pageY - ongoingTouches[idx].pageYStart, 2));
-        if (ongoingTouches.length > TOUCH_MOVE_THRESHOLD.length || dist > TOUCH_MOVE_THRESHOLD[ongoingTouches.length - 1]) {
-            touchMoved = true;
-        }
-        var dx = touches[i].pageX - ongoingTouches[idx].pageX;
-        var dy = touches[i].pageY - ongoingTouches[idx].pageY;
-        var timeDelta = evt.timeStamp - ongoingTouches[idx].timeStamp;
-        sumX += dx * calculatePointerAccelerationMult(Math.abs(dx) / timeDelta * 1000);
-        sumY += dy * calculatePointerAccelerationMult(Math.abs(dy) / timeDelta * 1000);
-        ongoingTouches[idx].pageX = touches[i].pageX;
-        ongoingTouches[idx].pageY = touches[i].pageY;
-        ongoingTouches[idx].timeStamp = evt.timeStamp;
-    }
-    if (touchMoved && evt.timeStamp - touchLastEnd >= TOUCH_TIMEOUT) {
-        if (ongoingTouches.length == 1 || dragging) {
-            moveXSum += sumX;
-            moveYSum += sumY;
-        } else if (ongoingTouches.length == 2) {
-            scrollXSum -= sumX;
-            scrollYSum -= sumY;
-        }
-        updateMoveAndScroll();
-    }
-}
-
-function challengeResponse(message) {
-    var shaObj = new jsSHA("SHA-256", "TEXT");
-    shaObj.setHMACKey(message, "TEXT");
-    shaObj.update(window.location.hash.substr(1));
-    return btoa(shaObj.getHMAC("BYTES"));
-}
-
-window.addEventListener("load", function() {
-    var authenticated = false;
-    var opening = document.getElementById("opening");
-    var closed = document.getElementById("closed");
-    pad = document.getElementById("pad");
-    padlabel = document.getElementById("padlabel");
-    var keyboard = document.getElementById("keyboard");
-    var fullscreenbutton = document.getElementById("fullscreenbutton");
-    var text = document.getElementById("text");
-    closed.style.display = "none";
-    pad.style.display = "none";
-    keyboard.style.display = "none";
-    text.value = "";
-
-    var wsProtocol = "wss:";
-    if (location.protocol == "http:") {
-        wsProtocol = "ws:";
-    }
-    ws = new WebSocket(wsProtocol + "//" + location.hostname +
-                       (location.port ? ":" + location.port : "") +
-                       "/ws");
-
-    ws.onmessage = function(event) {
-        if (authenticated) {
-            ws.close();
-            return;
-        }
-        authenticated = true;
-        ws.send(challengeResponse(event.data));
-        opening.style.display = "none";
-        if (history.state == "keyboard") {
-            keyboard.style.display = "flex";
-            text.focus();
-        } else {
-            pad.style.display = "flex";
-        }
-     };
-
-     ws.onclose = function() {
-        if (fullscreenElement()) {
-            exitFullscreen();
-        }
-        opening.style.display = "none";
-        pad.style.display = "none";
-        keyboard.style.display = "none"
-        closed.style.display = "flex";
-     };
-
-    document.getElementById("keyboardbutton").addEventListener("click",
-                                                               function(e) {
-        if (fullscreenElement()) {
-            exitFullscreen();
-        }
-        pad.style.display = "none";
-        keyboard.style.display = "flex";
-        text.focus();
-        history.pushState("keyboard", "Remote Keyboard");
-    });
-    if (!fullscreenEnabled()) {
-        fullscreenbutton.style.display = "none";
-    }
-    fullscreenbutton.addEventListener("click", function(e) {
-        if (fullscreenElement()) {
-            exitFullscreen();
-        } else {
-            requestFullscreen(pad);
-        }
-    });
-     document.getElementById("sendbutton").addEventListener("click",
-                                                            function(e) {
-        if (text.value != "") {
-            ws.send("t" + text.value);
-            text.value = "";
-        }
-        window.history.back();
-    });
-    window.onpopstate = function(event) {
-        if (keyboard.style.display == "flex") {
-            pad.style.display = "flex";
-            keyboard.style.display = "none";
-        } else {
-            window.history.back();
-        }
-    };
-    document.getElementById("reloadbutton").addEventListener("click",
-                                                             function(e) {
-        location.reload();
-    });
-    pad.addEventListener("touchstart", handleStart, false);
-    pad.addEventListener("touchend", handleEnd, false);
-    pad.addEventListener("touchcancel", handleCancel, false);
-    pad.addEventListener("touchmove", handleMove, false);
-}, false);

webdata/index.html

@@ -1,33 +1,100 @@
 <!DOCTYPE html>
 <html lang="en">
-    <head>
+
-        <meta charset="utf-8" />
+<meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no, interactive-widget=resizes-content">
-        <meta name="viewport" content="width=device-width initial-scale=1, maximum-scale=1, user-scalable=0" />
+<script src="app/main.mjs" type="module"></script>
-        <meta http-equiv="X-UA-Compatible" content="IE=edge" />
+<title>Remote Touchpad</title>
-        <script src="fn.js"></script>
+<link href="main.css" media="screen" rel="stylesheet">
-        <script src="sha256.js"></script>
+<link href="icon.png" type="image/png" rel="icon">
-        <title>Remote Touchpad</title>
+
-        <link href="main.css" media="screen" rel="stylesheet" />
+<div id="opening" class="scene">
-        <link href="icon.png" type="image/png" rel="shortcut icon" />
+    <noscript><p>JavaScript is required!</p></noscript>
-    </head>
+    <p>Connecting…</p>
-    <body>
+</div>
-        <div id="opening">
+
-            <p>Connecting...</p>
+<div id="closed" class="scene">
+    <p>Disconnected</p>
+    <button class="large" onclick="location.reload()">↻</button>
+</div>
+
+<div id="pad" class="scene touch-input mouse-input keyboard-input allow-fullscreen">
+    <p class="background">Touchpad</p>
+    <button class="top left" onclick="app.showKeys()">≡</button>
+    <button class="bottom left visible-if-fullscreen-enabled" onclick="app.toggleFullscreen()">⤢</button>
+    <button class="bottom right" onclick="app.showTextInput()">⌨</button>
+</div>
+
+<div id="text-input" class="scene">
+    <textarea class="grow" cols=1 rows=1></textarea>
+    <div class="buttons">
+        <button onclick="app.showKeys('text-input', 1)">≡</button>
+        <button class="grow" id="send-text" data-send-content="➣" data-back-content="⯇"></button>
+    </div>
+</div>
+
+<div id="keys" class="scene touch-input mouse-input keyboard-input allow-fullscreen">
+    <div class="page">
+        <div class="buttons" style="grid-column: 1 / 4">
+            <button onclick="app.key(app.KEY_BROWSER_BACK)">⭠</button>
+            <button onclick="app.key(app.KEY_SUPER)">🪟</button>
+            <button onclick="app.key(app.KEY_BROWSER_FORWARD)">⭢</button>
         </div>
-        <div id="closed">
+        <div class="buttons" style="grid-column: 1 / 4">
-            <p>Disconnected</p>
+            <button onclick="app.key(app.KEY_MEDIA_PREV_TRACK)">⏮</button>
-            <button id="reloadbutton">↻</button>
+            <button onclick="app.key(app.KEY_MEDIA_PLAY_PAUSE)">⏯</button>
+            <button onclick="app.key(app.KEY_MEDIA_NEXT_TRACK)">⏭</button>
         </div>
-        <div id="pad">
+        <div class="buttons" style="grid-column: 1 / 4">
-            <p id="padlabel">Touchpad</p>
+            <button onclick="app.key(app.KEY_VOLUME_DOWN)">🔉</button>
-            <div class="buttons">
+            <button onclick="app.key(app.KEY_VOLUME_MUTE)">🔇</button>
-                <button id="fullscreenbutton">▢</button>
+            <button onclick="app.key(app.KEY_VOLUME_UP)">🔊</button>
-                <button id="keyboardbutton">⌨</button>
-          </div>
         </div>
-        <div id="keyboard">
+    </div>
-            <textarea id="text"></textarea>
+    <div class="page">
-            <button id="sendbutton">➣</button>
+        <div class="buttons" style="grid-column: 1 / 4">
+            <button onclick="app.key(app.KEY_BACK_SPACE)">⌫</button>
+            <button onclick="app.key(app.KEY_RETURN)">⮠</button>
+            <button onclick="app.key(app.KEY_DELETE)">⌦</button>
         </div>
-    </body>
+        <div class="buttons" style="grid-column: 1 / 4">
-</html>
+            <button onclick="app.key(app.KEY_HOME)">⭰</button>
+            <button onclick="app.key(app.KEY_UP)">↑</button>
+            <button onclick="app.key(app.KEY_END)">⭲</button>
+        </div>
+        <div class="buttons" style="grid-column: 1 / 4">
+            <button onclick="app.key(app.KEY_LEFT)">←</button>
+            <button onclick="app.key(app.KEY_DOWN)">↓</button>
+            <button onclick="app.key(app.KEY_RIGHT)">→</button>
+        </div>
+    </div>
+    <div class="page">
+        <button onclick="app.key(app.KEY_BACK_SPACE)">⌫</button>
+        <button onclick="app.text(this.textContent)">/</button>
+        <button onclick="app.text(this.textContent)">*</button>
+        <button onclick="app.text(this.textContent)">-</button>
+
+        <button style="grid-row: 2" onclick="app.text(this.textContent)">7</button>
+        <button onclick="app.text(this.textContent)">8</button>
+        <button onclick="app.text(this.textContent)">9</button>
+        <button onclick="app.text(this.textContent)">+</button>
+
+        <button style="grid-row: 3" onclick="app.text(this.textContent)">4</button>
+        <button onclick="app.text(this.textContent)">5</button>
+        <button onclick="app.text(this.textContent)">6</button>
+        <button onclick="app.text(this.textContent)">=</button>
+
+        <button style="grid-row: 4" onclick="app.text(this.textContent)">1</button>
+        <button onclick="app.text(this.textContent)">2</button>
+        <button onclick="app.text(this.textContent)">3</button>
+        <button style="grid-row: 4 / 6; grid-column: 4" onclick="app.key(app.KEY_RETURN)">⮠</button>
+
+        <button style="grid-row: 5; grid-column: 1 / 3" onclick="app.text(this.textContent)">0</button>
+        <button onclick="app.text(this.textContent)"><script>document.write(Intl.NumberFormat().formatToParts(1.1).find(x => x.type === "decimal").value)</script></button>
+    </div>
+    <button class="top right" onclick="app.setKeysPage(1, true)">⮂</button>
+    <button class="top left" onclick="history.back()">⯇</button>
+</div>
+
+<div id="mouse" class="scene keyboard-input allow-fullscreen">
+    <p class="background">Mouse</p>
+</div>

webdata/main.css

@@ -1,103 +1,228 @@
-html, body, #pad, #keyboard, #opening, #closed {
+@font-face {
+    font-family: "icon";
+    src: url("icon.woff") format("woff");
+}
+
+.hidden {
+    display: none !important;
+}
+
+html {
+    font-family: sans-serif;
+    -moz-user-select: none;
+    -webkit-user-select: none;
+    -ms-user-select: none;
+    user-select: none;
+    background-color: #404040;
+    color: white;
+    background-image: url(tex.png);
+    touch-action: none;
+    overflow: hidden;
+}
+
+html,
+body,
+.scene {
     width: 100%;
     height: 100%;
     margin: 0;
 }
 
-body {
+.scene {
-    font-family: sans;
+    position: relative;
-}
-
-#pad, #sendbutton, #opening, #closed {
-    background-color: #404040 !important;
-    background-image: url(tex.png);
-}
-
-#opening, #closed {
     display: flex;
-    align-items: center;
+    flex-direction: column;
     justify-content: center;
-    font-size: 2em;
+    box-sizing: border-box;
-    color: white;
+    align-items: center;
+    gap: 2rem;
+    padding: 0.5rem;
+}
+
+p {
+    margin: 0;
+    font-size: 2rem;
     word-wrap: break-word;
-    flex-direction: column;
-}
-
-#pad {
-    display: flex;
-    flex-direction: column;
-}
-
-#padlabel {
-    color: #424242;
-    text-shadow:
-        -1px -1px 0 #383838,
-        1px -1px 0 #383838,
-        -1px 1px 0 #383838,
-        1px 1px 0 #383838;
-    font-weight: bold;
-    margin-top: auto;
-    margin-bottom: auto;
     text-align: center;
-    font-size: 4em;
-    word-wrap: break-word;
 }
 
-#fullscreenbutton, #keyboardbutton, #sendbutton, #reloadbutton {
+p.background {
+    color: gray;
+    text-shadow:
+        -1px -1px 0 black,
+        1px -1px 0 black,
+        -1px 1px 0 black,
+        1px 1px 0 black;
+    opacity: 0.08;
+    font-weight: bold;
+    font-size: 4rem;
+    pointer-events: none;
+}
+
+@media (max-width: 32rem) {
+    p.background {
+        font-size: 13vw;
+    }
+}
+
+.large {
+    font-size: 4rem;
+}
+
+button {
+    box-sizing: border-box;
+    padding: 0;
     background-color: transparent;
     border: 1px solid black;
     height: 1.5em;
     width: 2em;
-    font-size: 2em;
+    min-width: 1.2em;
+    min-height: 1.2em;
+    max-width: 100%;
+    max-height: 100%;
+    border-radius: 2px;
+    font-size: 2rem;
     color: white;
+    font-family: "icon";
+    overflow: hidden;
+    cursor: pointer;
+    transition: box-shadow 0.2s ease-out;
 }
 
-#fullscreenbutton, #keyboardbutton, #sendbutton {
+button:focus {
+    outline: none;
+}
+
+button.click {
+    box-shadow: 0 0 1rem white inset;
+    transition: none;
+}
+
+button.top,
+button.bottom,
+button.left,
+button.right {
+    position: absolute;
+    max-width: 50%;
+    max-height: 50%;
+}
+
+button.top {
+    top: 0;
+    border-top: none;
+}
+
+button.bottom {
+    bottom: 0;
     border-bottom: none;
 }
 
-#fullscreenbutton {
+button.left {
+    left: 0;
     border-left: none;
 }
 
-#keyboardbutton {
+button.right {
+    right: 0;
     border-right: none;
-    margin-left: auto;
-}
-
-#keyboard {
-    display: flex;
-    flex-direction: row;
-}
-
-#text {
-    flex: 2;
-    border: none;
-    resize: none;
-    font-size: 2em;
-    background-color: white;
-    color: black;
 }
 
 .buttons {
     display: flex;
+    flex-direction: row;
+    min-height: 0;
+    min-width: 0;
 }
 
-#sendbutton {
+.buttons > button:not(:last-child) {
     border-right: none;
-    border-top: none;
+}
+
+.scene > .grow,
+.buttons > .grow {
+    flex-grow: 1;
+}
+
+textarea {
+    border: none;
+    resize: none;
+    font-size: 2rem;
+    background-color: white;
+    color: black;
+    margin: 0;
+    padding: 0 0.5rem;
+}
+
+textarea:focus {
+    outline: none;
+}
+
+#keys {
+    padding: 0;
+    justify-content: end;
+}
+
+#keys .page {
+    display: grid;
+    gap: 0.5rem;
+    min-height: 0;
+    min-width: 0;
+    grid-auto-rows: minmax(min-content, 6rem);
+    grid-auto-columns: minmax(min-content, 8rem);
+    padding: 0.5rem;
+}
+
+#keys .page * {
+    width: 100%;
     height: 100%;
 }
 
-@media (max-aspect-ratio: 4/3) {
+#text-input {
-    #keyboard {
+    align-items: stretch;
+    padding: 0;
+    gap: 0;
+    flex-direction: row;
+}
+
+#text-input .buttons {
+    flex-direction: column;
+}
+
+#text-input .buttons > button {
+    border-top: none;
+    border-right: none;
+}
+
+#text-input .buttons > button:last-child {
+    border-bottom: none;
+}
+
+/* Only Safari for iOS */
+@supports (-webkit-touch-callout: none) {
+    /* Virtual keyboard can overlay content */
+    #text-input .buttons > button:last-child {
+        display: flex;
+        padding-top: 0.2em;
+        justify-content: center;
+    }
+}
+
+/* Portrait orientation (not for Safari on iOS) */
+@supports not (-webkit-touch-callout: none) { @media (max-aspect-ratio: 4/3) {
+    #text-input {
         flex-direction: column;
     }
 
-    #sendbutton {
+    #text-input .buttons {
-        border-left: none;
+        flex-direction: row;
-        border-top: 1px solid black;
-        height: 1.5em;
-        width: 100%;
     }
-}
+
+    #text-input .buttons > button {
+        border-top: 1px solid black;
+        border-bottom: none;
+    }
+
+    #text-input .buttons > button:first-child {
+        border-left: none;
+    }
+} }

webdata/sha256.js

@@ -1,27 +0,0 @@
-/*
- A JavaScript implementation of the SHA family of hashes, as
- defined in FIPS PUB 180-4 and FIPS PUB 202, as well as the corresponding
- HMAC implementation as defined in FIPS PUB 198a
-
- Copyright 2008-2018 Brian Turek, 1998-2009 Paul Johnston & Contributors
- Distributed under the BSD License
- See http://caligatio.github.com/jsSHA/ for more information
-*/
-'use strict';(function(I){function w(c,a,d){var l=0,b=[],g=0,f,n,k,e,h,q,y,p,m=!1,t=[],r=[],u,z=!1;d=d||{};f=d.encoding||"UTF8";u=d.numRounds||1;if(u!==parseInt(u,10)||1>u)throw Error("numRounds must a integer >= 1");if(0===c.lastIndexOf("SHA-",0))if(q=function(b,a){return A(b,a,c)},y=function(b,a,l,f){var g,e;if("SHA-224"===c||"SHA-256"===c)g=(a+65>>>9<<4)+15,e=16;else throw Error("Unexpected error in SHA-2 implementation");for(;b.length<=g;)b.push(0);b[a>>>5]|=128<<24-a%32;a=a+l;b[g]=a&4294967295;
-b[g-1]=a/4294967296|0;l=b.length;for(a=0;a<l;a+=e)f=A(b.slice(a,a+e),f,c);if("SHA-224"===c)b=[f[0],f[1],f[2],f[3],f[4],f[5],f[6]];else if("SHA-256"===c)b=f;else throw Error("Unexpected error in SHA-2 implementation");return b},p=function(b){return b.slice()},"SHA-224"===c)h=512,e=224;else if("SHA-256"===c)h=512,e=256;else throw Error("Chosen SHA variant is not supported");else throw Error("Chosen SHA variant is not supported");k=B(a,f);n=x(c);this.setHMACKey=function(b,a,g){var e;if(!0===m)throw Error("HMAC key already set");
-if(!0===z)throw Error("Cannot set HMAC key after calling update");f=(g||{}).encoding||"UTF8";a=B(a,f)(b);b=a.binLen;a=a.value;e=h>>>3;g=e/4-1;if(e<b/8){for(a=y(a,b,0,x(c));a.length<=g;)a.push(0);a[g]&=4294967040}else if(e>b/8){for(;a.length<=g;)a.push(0);a[g]&=4294967040}for(b=0;b<=g;b+=1)t[b]=a[b]^909522486,r[b]=a[b]^1549556828;n=q(t,n);l=h;m=!0};this.update=function(a){var c,f,e,d=0,p=h>>>5;c=k(a,b,g);a=c.binLen;f=c.value;c=a>>>5;for(e=0;e<c;e+=p)d+h<=a&&(n=q(f.slice(e,e+p),n),d+=h);l+=d;b=f.slice(d>>>
-5);g=a%h;z=!0};this.getHash=function(a,f){var d,h,k,q;if(!0===m)throw Error("Cannot call getHash after setting HMAC key");k=C(f);switch(a){case "HEX":d=function(a){return D(a,e,k)};break;case "B64":d=function(a){return E(a,e,k)};break;case "BYTES":d=function(a){return F(a,e)};break;case "ARRAYBUFFER":try{h=new ArrayBuffer(0)}catch(v){throw Error("ARRAYBUFFER not supported by this environment");}d=function(a){return G(a,e)};break;default:throw Error("format must be HEX, B64, BYTES, or ARRAYBUFFER");
-}q=y(b.slice(),g,l,p(n));for(h=1;h<u;h+=1)q=y(q,e,0,x(c));return d(q)};this.getHMAC=function(a,f){var d,k,t,u;if(!1===m)throw Error("Cannot call getHMAC without first setting HMAC key");t=C(f);switch(a){case "HEX":d=function(a){return D(a,e,t)};break;case "B64":d=function(a){return E(a,e,t)};break;case "BYTES":d=function(a){return F(a,e)};break;case "ARRAYBUFFER":try{d=new ArrayBuffer(0)}catch(v){throw Error("ARRAYBUFFER not supported by this environment");}d=function(a){return G(a,e)};break;default:throw Error("outputFormat must be HEX, B64, BYTES, or ARRAYBUFFER");
-}k=y(b.slice(),g,l,p(n));u=q(r,x(c));u=y(k,e,h,u);return d(u)}}function m(){}function D(c,a,d){var l="";a/=8;var b,g;for(b=0;b<a;b+=1)g=c[b>>>2]>>>8*(3+b%4*-1),l+="0123456789abcdef".charAt(g>>>4&15)+"0123456789abcdef".charAt(g&15);return d.outputUpper?l.toUpperCase():l}function E(c,a,d){var l="",b=a/8,g,f,n;for(g=0;g<b;g+=3)for(f=g+1<b?c[g+1>>>2]:0,n=g+2<b?c[g+2>>>2]:0,n=(c[g>>>2]>>>8*(3+g%4*-1)&255)<<16|(f>>>8*(3+(g+1)%4*-1)&255)<<8|n>>>8*(3+(g+2)%4*-1)&255,f=0;4>f;f+=1)8*g+6*f<=a?l+="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".charAt(n>>>
-6*(3-f)&63):l+=d.b64Pad;return l}function F(c,a){var d="",l=a/8,b,g;for(b=0;b<l;b+=1)g=c[b>>>2]>>>8*(3+b%4*-1)&255,d+=String.fromCharCode(g);return d}function G(c,a){var d=a/8,l,b=new ArrayBuffer(d),g;g=new Uint8Array(b);for(l=0;l<d;l+=1)g[l]=c[l>>>2]>>>8*(3+l%4*-1)&255;return b}function C(c){var a={outputUpper:!1,b64Pad:"=",shakeLen:-1};c=c||{};a.outputUpper=c.outputUpper||!1;!0===c.hasOwnProperty("b64Pad")&&(a.b64Pad=c.b64Pad);if("boolean"!==typeof a.outputUpper)throw Error("Invalid outputUpper formatting option");
-if("string"!==typeof a.b64Pad)throw Error("Invalid b64Pad formatting option");return a}function B(c,a){var d;switch(a){case "UTF8":case "UTF16BE":case "UTF16LE":break;default:throw Error("encoding must be UTF8, UTF16BE, or UTF16LE");}switch(c){case "HEX":d=function(a,b,c){var f=a.length,d,k,e,h,q;if(0!==f%2)throw Error("String of HEX type must be in byte increments");b=b||[0];c=c||0;q=c>>>3;for(d=0;d<f;d+=2){k=parseInt(a.substr(d,2),16);if(isNaN(k))throw Error("String of HEX type contains invalid characters");
-h=(d>>>1)+q;for(e=h>>>2;b.length<=e;)b.push(0);b[e]|=k<<8*(3+h%4*-1)}return{value:b,binLen:4*f+c}};break;case "TEXT":d=function(c,b,d){var f,n,k=0,e,h,q,m,p,r;b=b||[0];d=d||0;q=d>>>3;if("UTF8"===a)for(r=3,e=0;e<c.length;e+=1)for(f=c.charCodeAt(e),n=[],128>f?n.push(f):2048>f?(n.push(192|f>>>6),n.push(128|f&63)):55296>f||57344<=f?n.push(224|f>>>12,128|f>>>6&63,128|f&63):(e+=1,f=65536+((f&1023)<<10|c.charCodeAt(e)&1023),n.push(240|f>>>18,128|f>>>12&63,128|f>>>6&63,128|f&63)),h=0;h<n.length;h+=1){p=k+
-q;for(m=p>>>2;b.length<=m;)b.push(0);b[m]|=n[h]<<8*(r+p%4*-1);k+=1}else if("UTF16BE"===a||"UTF16LE"===a)for(r=2,n="UTF16LE"===a&&!0||"UTF16LE"!==a&&!1,e=0;e<c.length;e+=1){f=c.charCodeAt(e);!0===n&&(h=f&255,f=h<<8|f>>>8);p=k+q;for(m=p>>>2;b.length<=m;)b.push(0);b[m]|=f<<8*(r+p%4*-1);k+=2}return{value:b,binLen:8*k+d}};break;case "B64":d=function(a,b,c){var f=0,d,k,e,h,q,m,p;if(-1===a.search(/^[a-zA-Z0-9=+\/]+$/))throw Error("Invalid character in base-64 string");k=a.indexOf("=");a=a.replace(/\=/g,
-"");if(-1!==k&&k<a.length)throw Error("Invalid '=' found in base-64 string");b=b||[0];c=c||0;m=c>>>3;for(k=0;k<a.length;k+=4){q=a.substr(k,4);for(e=h=0;e<q.length;e+=1)d="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".indexOf(q[e]),h|=d<<18-6*e;for(e=0;e<q.length-1;e+=1){p=f+m;for(d=p>>>2;b.length<=d;)b.push(0);b[d]|=(h>>>16-8*e&255)<<8*(3+p%4*-1);f+=1}}return{value:b,binLen:8*f+c}};break;case "BYTES":d=function(a,b,c){var d,n,k,e,h;b=b||[0];c=c||0;k=c>>>3;for(n=0;n<a.length;n+=
-1)d=a.charCodeAt(n),h=n+k,e=h>>>2,b.length<=e&&b.push(0),b[e]|=d<<8*(3+h%4*-1);return{value:b,binLen:8*a.length+c}};break;case "ARRAYBUFFER":try{d=new ArrayBuffer(0)}catch(l){throw Error("ARRAYBUFFER not supported by this environment");}d=function(a,b,c){var d,n,k,e,h;b=b||[0];c=c||0;n=c>>>3;h=new Uint8Array(a);for(d=0;d<a.byteLength;d+=1)e=d+n,k=e>>>2,b.length<=k&&b.push(0),b[k]|=h[d]<<8*(3+e%4*-1);return{value:b,binLen:8*a.byteLength+c}};break;default:throw Error("format must be HEX, TEXT, B64, BYTES, or ARRAYBUFFER");
-}return d}function r(c,a){return c>>>a|c<<32-a}function J(c,a,d){return c&a^~c&d}function K(c,a,d){return c&a^c&d^a&d}function L(c){return r(c,2)^r(c,13)^r(c,22)}function M(c){return r(c,6)^r(c,11)^r(c,25)}function N(c){return r(c,7)^r(c,18)^c>>>3}function O(c){return r(c,17)^r(c,19)^c>>>10}function P(c,a){var d=(c&65535)+(a&65535);return((c>>>16)+(a>>>16)+(d>>>16)&65535)<<16|d&65535}function Q(c,a,d,l){var b=(c&65535)+(a&65535)+(d&65535)+(l&65535);return((c>>>16)+(a>>>16)+(d>>>16)+(l>>>16)+(b>>>
-16)&65535)<<16|b&65535}function R(c,a,d,l,b){var g=(c&65535)+(a&65535)+(d&65535)+(l&65535)+(b&65535);return((c>>>16)+(a>>>16)+(d>>>16)+(l>>>16)+(b>>>16)+(g>>>16)&65535)<<16|g&65535}function x(c){var a=[],d;if(0===c.lastIndexOf("SHA-",0))switch(a=[3238371032,914150663,812702999,4144912697,4290775857,1750603025,1694076839,3204075428],d=[1779033703,3144134277,1013904242,2773480762,1359893119,2600822924,528734635,1541459225],c){case "SHA-224":break;case "SHA-256":a=d;break;case "SHA-384":a=[new m,new m,
-new m,new m,new m,new m,new m,new m];break;case "SHA-512":a=[new m,new m,new m,new m,new m,new m,new m,new m];break;default:throw Error("Unknown SHA variant");}else throw Error("No SHA variants supported");return a}function A(c,a,d){var l,b,g,f,n,k,e,h,m,r,p,w,t,x,u,z,A,B,C,D,E,F,v=[],G;if("SHA-224"===d||"SHA-256"===d)r=64,w=1,F=Number,t=P,x=Q,u=R,z=N,A=O,B=L,C=M,E=K,D=J,G=H;else throw Error("Unexpected error in SHA-2 implementation");d=a[0];l=a[1];b=a[2];g=a[3];f=a[4];n=a[5];k=a[6];e=a[7];for(p=
-0;p<r;p+=1)16>p?(m=p*w,h=c.length<=m?0:c[m],m=c.length<=m+1?0:c[m+1],v[p]=new F(h,m)):v[p]=x(A(v[p-2]),v[p-7],z(v[p-15]),v[p-16]),h=u(e,C(f),D(f,n,k),G[p],v[p]),m=t(B(d),E(d,l,b)),e=k,k=n,n=f,f=t(g,h),g=b,b=l,l=d,d=t(h,m);a[0]=t(d,a[0]);a[1]=t(l,a[1]);a[2]=t(b,a[2]);a[3]=t(g,a[3]);a[4]=t(f,a[4]);a[5]=t(n,a[5]);a[6]=t(k,a[6]);a[7]=t(e,a[7]);return a}var H;H=[1116352408,1899447441,3049323471,3921009573,961987163,1508970993,2453635748,2870763221,3624381080,310598401,607225278,1426881987,1925078388,2162078206,
-2614888103,3248222580,3835390401,4022224774,264347078,604807628,770255983,1249150122,1555081692,1996064986,2554220882,2821834349,2952996808,3210313671,3336571891,3584528711,113926993,338241895,666307205,773529912,1294757372,1396182291,1695183700,1986661051,2177026350,2456956037,2730485921,2820302411,3259730800,3345764771,3516065817,3600352804,4094571909,275423344,430227734,506948616,659060556,883997877,958139571,1322822218,1537002063,1747873779,1955562222,2024104815,2227730452,2361852424,2428436474,
-2756734187,3204031479,3329325298];"function"===typeof define&&define.amd?define(function(){return w}):"undefined"!==typeof exports?("undefined"!==typeof module&&module.exports&&(module.exports=w),exports=w):I.jsSHA=w})(this);

webdata_test.go

@@ -0,0 +1,42 @@
+/*
+ *    Copyright (c) 2024 Unrud <unrud@outlook.com>
+ *
+ *    This file is part of Remote-Touchpad.
+ *
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    Remote-Touchpad is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package main
+
+import (
+	"fmt"
+	"io/fs"
+	"path/filepath"
+	"testing"
+)
+
+func TestWebdataTypesCompleteness(t *testing.T) {
+	if err := fs.WalkDir(webdataFS, ".", func(_ string, d fs.DirEntry, err error) error {
+		if err != nil || d.IsDir() {
+			return err
+		}
+		ext := filepath.Ext(d.Name())
+		if _, haveType := webdataTypes[ext]; !haveType {
+			return fmt.Errorf("missing mime type for extension %#v", ext)
+		}
+		return nil
+	}); err != nil {
+		t.Fatal(err)
+	}
+}