lukajankovic/remote-touchpad
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Return early if no relevant touches

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This commit is contained in:
Unrud 2022-02-23 21:11:23 +01:00
parent 0c401e0247
commit 90922d85c6
1 changed files with 27 additions and 12 deletions
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25
webdata/fn.js
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@ -277,11 +277,12 @@ var touchpad = (function() {
moved = false;
}
var touches = evt.changedTouches;
var foundTouch = false;
for (var i = 0; i < touches.length; i += 1) {
if (ongoingTouches.length == 0 && !touches[i].target.classList.contains("touch")) {
continue;
}
evt.preventDefault();
foundTouch = true;
var touch = copyTouch(touches[i], evt.timeStamp);
var idx = ongoingTouchIndexById(touch.identifier);
if (idx < 0) {
@ -289,6 +290,11 @@ var touchpad = (function() {
} else {
ongoingTouches[idx] = touch;
}
}
if (!foundTouch) {
return;
}
evt.preventDefault();
lastEndTimeStamp = 0;
if (draggingTimeout != null) {
clearTimeout(draggingTimeout);
@ -296,22 +302,26 @@ var touchpad = (function() {
dragging = true;
}
controller.pointerScroll(0, 0, true);
}
};
touchpad.handleTouchend = touchpad.handleTouchcancel = function(evt) {
var touches = evt.changedTouches;
var foundTouch = false;
for (var i = 0; i < touches.length; i += 1) {
var idx = ongoingTouchIndexById(touches[i].identifier);
if (idx < 0) {
continue;
}
evt.preventDefault();
foundTouch = true;
ongoingTouches.splice(idx, 1);
releasedCount += 1;
}
if (!foundTouch) {
return;
}
evt.preventDefault();
lastEndTimeStamp = evt.timeStamp;
controller.pointerScroll(0, 0, true);
}
if (releasedCount > TOUCH_MOVE_THRESHOLD.length) {
moved = true;
}
@ -344,12 +354,13 @@ var touchpad = (function() {
var sumX = 0;
var sumY = 0;
var touches = evt.changedTouches;
var foundTouch = false;
for (var i = 0; i < touches.length; i += 1) {
var idx = ongoingTouchIndexById(touches[i].identifier);
if (idx < 0) {
continue;
}
evt.preventDefault();
foundTouch = true;
if (!moved) {
var dist = Math.sqrt(Math.pow(touches[i].pageX - ongoingTouches[idx].pageXStart, 2) +
Math.pow(touches[i].pageY - ongoingTouches[idx].pageYStart, 2));
@ -368,6 +379,10 @@ var touchpad = (function() {
ongoingTouches[idx].pageY = touches[i].pageY;
ongoingTouches[idx].timeStamp = evt.timeStamp;
}
if (!foundTouch) {
return;
}
evt.preventDefault();
if (moved && evt.timeStamp - lastEndTimeStamp >= TOUCH_TIMEOUT) {
if (ongoingTouches.length == 1 || dragging) {
controller.pointerMove(sumX*config.moveSpeed, sumY*config.moveSpeed);