Use ECMAScript modules

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);
+    }
+}