svgedit/editor/touch.js

28 lines
892 B
JavaScript

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