@larva.io/webcomponents
Version:
Fentrica SmartUnits WebComponents package
115 lines (114 loc) • 3.18 kB
JavaScript
/*!
* (C) Fentrica http://fentrica.com - Seee LICENSE.md
*/
import { addEventListener } from "./listener";
const MOUSE_WAIT = 2000;
export const createPointerEvents = (el, pointerDown, pointerMove, pointerUp, options) => {
let rmTouchStart;
let rmTouchMove;
let rmTouchEnd;
let rmTouchCancel;
let rmMouseStart;
let rmMouseMove;
let rmMouseUp;
let lastTouchEvent = 0;
const handleTouchStart = (ev) => {
lastTouchEvent = Date.now() + MOUSE_WAIT;
if (!pointerDown(ev)) {
return;
}
if (!rmTouchMove && pointerMove) {
rmTouchMove = addEventListener(el, 'touchmove', pointerMove, options);
}
if (!rmTouchEnd) {
rmTouchEnd = addEventListener(el, 'touchend', handleTouchEnd, options);
}
if (!rmTouchCancel) {
rmTouchCancel = addEventListener(el, 'touchcancel', handleTouchEnd, options);
}
};
const handleMouseDown = (ev) => {
if (lastTouchEvent > Date.now()) {
return;
}
if (!pointerDown(ev)) {
return;
}
if (!rmMouseMove && pointerMove) {
rmMouseMove = addEventListener(getDocument(el), 'mousemove', pointerMove, options);
}
if (!rmMouseUp) {
rmMouseUp = addEventListener(getDocument(el), 'mouseup', handleMouseUp, options);
}
};
const handleTouchEnd = (ev) => {
stopTouch();
if (pointerUp) {
pointerUp(ev);
}
};
const handleMouseUp = (ev) => {
stopMouse();
if (pointerUp) {
pointerUp(ev);
}
};
const stopTouch = () => {
if (rmTouchMove) {
rmTouchMove();
}
if (rmTouchEnd) {
rmTouchEnd();
}
if (rmTouchCancel) {
rmTouchCancel();
}
rmTouchMove = rmTouchEnd = rmTouchCancel = undefined;
};
const stopMouse = () => {
if (rmMouseMove) {
rmMouseMove();
}
if (rmMouseUp) {
rmMouseUp();
}
rmMouseMove = rmMouseUp = undefined;
};
const stop = () => {
stopTouch();
stopMouse();
};
const enable = (isEnabled = true) => {
if (!isEnabled) {
if (rmTouchStart) {
rmTouchStart();
}
if (rmMouseStart) {
rmMouseStart();
}
rmTouchStart = rmMouseStart = undefined;
stop();
}
else {
if (!rmTouchStart) {
rmTouchStart = addEventListener(el, 'touchstart', handleTouchStart, options);
}
if (!rmMouseStart) {
rmMouseStart = addEventListener(el, 'mousedown', handleMouseDown, options);
}
}
};
const destroy = () => {
enable(false);
pointerUp = pointerMove = pointerDown = undefined;
};
return {
enable,
stop,
destroy
};
};
const getDocument = (node) => {
return node instanceof Document ? node : node.ownerDocument;
};
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