src/pointerevent.js
/**
* @module hammer
*
* @class PointerEvent
* @static
*/
var PointerEvent = Hammer.PointerEvent = {
/**
* holds all pointers, by `identifier`
* @property pointers
* @type {Object}
*/
pointers: {},
/**
* get the pointers as an array
* @method getTouchList
* @return {Array} touchlist
*/
getTouchList: function getTouchList() {
var touchlist = [];
// we can use forEach since pointerEvents only is in IE10
Utils.each(this.pointers, function(pointer) {
touchlist.push(pointer);
});
return touchlist;
},
/**
* update the position of a pointer
* @method updatePointer
* @param {String} eventType matches `EVENT_START|MOVE|END`
* @param {Object} pointerEvent
*/
updatePointer: function updatePointer(eventType, pointerEvent) {
if(eventType == EVENT_END || (eventType != EVENT_END && pointerEvent.buttons !== 1)) {
delete this.pointers[pointerEvent.pointerId];
} else {
pointerEvent.identifier = pointerEvent.pointerId;
this.pointers[pointerEvent.pointerId] = pointerEvent;
}
},
/**
* check if ev matches pointertype
* @method matchType
* @param {String} pointerType matches `POINTER_MOUSE|TOUCH|PEN`
* @param {PointerEvent} ev
*/
matchType: function matchType(pointerType, ev) {
if(!ev.pointerType) {
return false;
}
var pt = ev.pointerType,
types = {};
types[POINTER_MOUSE] = (pt === (ev.MSPOINTER_TYPE_MOUSE || POINTER_MOUSE));
types[POINTER_TOUCH] = (pt === (ev.MSPOINTER_TYPE_TOUCH || POINTER_TOUCH));
types[POINTER_PEN] = (pt === (ev.MSPOINTER_TYPE_PEN || POINTER_PEN));
return types[pointerType];
},
/**
* reset the stored pointers
* @method reset
*/
reset: function resetList() {
this.pointers = {};
}
};