32 lines
1.1 KiB
JavaScript
32 lines
1.1 KiB
JavaScript
// http://ross.posterous.com/2008/08/19/iphone-touch-events-in-javascript/
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function touchHandler (event) {
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const touches = event.changedTouches,
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first = touches[0];
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let type = '';
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switch (event.type) {
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case 'touchstart': type = 'mousedown'; break;
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case 'touchmove': type = 'mousemove'; break;
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case 'touchend': type = 'mouseup'; break;
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default: return;
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}
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// initMouseEvent(type, canBubble, cancelable, view, clickCount,
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// screenX, screenY, clientX, clientY, ctrlKey,
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// altKey, shiftKey, metaKey, button, relatedTarget);
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const simulatedEvent = document.createEvent('MouseEvent');
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simulatedEvent.initMouseEvent(type, true, true, window, 1,
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first.screenX, first.screenY,
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first.clientX, first.clientY, false,
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false, false, false, 0/* left */, null);
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if (touches.length < 2) {
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first.target.dispatchEvent(simulatedEvent);
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event.preventDefault();
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}
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}
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document.addEventListener('touchstart', touchHandler, true);
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document.addEventListener('touchmove', touchHandler, true);
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document.addEventListener('touchend', touchHandler, true);
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document.addEventListener('touchcancel', touchHandler, true);
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