47 lines
1.3 KiB
JavaScript
47 lines
1.3 KiB
JavaScript
// http://ross.posterous.com/2008/08/19/iphone-touch-events-in-javascript/
|
|
/**
|
|
*
|
|
* @param {Event} ev
|
|
* @returns {void}
|
|
*/
|
|
function touchHandler (ev) {
|
|
const {changedTouches} = ev,
|
|
first = changedTouches[0];
|
|
|
|
let type = '';
|
|
switch (ev.type) {
|
|
case 'touchstart': type = 'mousedown'; break;
|
|
case 'touchmove': type = 'mousemove'; break;
|
|
case 'touchend': type = 'mouseup'; break;
|
|
default: return;
|
|
}
|
|
|
|
const {screenX, screenY, clientX, clientY} = first; // eslint-disable-line no-shadow
|
|
const simulatedEvent = new MouseEvent(type, {
|
|
// Event interface
|
|
bubbles: true,
|
|
cancelable: true,
|
|
// UIEvent interface
|
|
view: window,
|
|
detail: 1, // click count
|
|
// MouseEvent interface (customized)
|
|
screenX, screenY, clientX, clientY,
|
|
// MouseEvent interface (defaults) - these could be removed
|
|
ctrlKey: false,
|
|
altKey: false,
|
|
shiftKey: false,
|
|
metaKey: false,
|
|
button: 0, // main button (usually left)
|
|
relatedTarget: null
|
|
});
|
|
if (changedTouches.length < 2) {
|
|
first.target.dispatchEvent(simulatedEvent);
|
|
ev.preventDefault();
|
|
}
|
|
}
|
|
|
|
document.addEventListener('touchstart', touchHandler, true);
|
|
document.addEventListener('touchmove', touchHandler, true);
|
|
document.addEventListener('touchend', touchHandler, true);
|
|
document.addEventListener('touchcancel', touchHandler, true);
|