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Support standard mouse wheel event 

Mouse wheel event handling has now been standardised and has broad
support. Use this event rather than the older, non-standard ones.
At the same time fix up support for horisontal mouse wheel events.
This commit is contained in:
Pierre Ossman 2016-10-21 16:02:27 +02:00
parent a2495799af
commit ebb9086ae8
1 changed files with 18 additions and 13 deletions
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31
core/input/devices.js
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@ -291,18 +291,25 @@
var evt = (e ? e : window.event);
var pos = Util.getEventPosition(e, this._target, this._scale);
var wheelData = evt.detail ? evt.detail * -1 : evt.wheelDelta / 40;
var bmask;
if (wheelData > 0) {
bmask = 1 << 3;
} else {
bmask = 1 << 4;
}
if (this._onMouseButton) {
this._onMouseButton(pos.x, pos.y, 1, bmask);
this._onMouseButton(pos.x, pos.y, 0, bmask);
if (evt.deltaX < 0) {
this._onMouseButton(pos.x, pos.y, 1, 1 << 5);
this._onMouseButton(pos.x, pos.y, 0, 1 << 5);
} else if (evt.deltaX > 0) {
this._onMouseButton(pos.x, pos.y, 1, 1 << 6);
this._onMouseButton(pos.x, pos.y, 0, 1 << 6);
}
if (evt.deltaY < 0) {
this._onMouseButton(pos.x, pos.y, 1, 1 << 3);
this._onMouseButton(pos.x, pos.y, 0, 1 << 3);
} else if (evt.deltaY > 0) {
this._onMouseButton(pos.x, pos.y, 1, 1 << 4);
this._onMouseButton(pos.x, pos.y, 0, 1 << 4);
}
}
Util.stopEvent(e);
return false;
},
@ -356,8 +363,7 @@
window.addEventListener('mouseup', this._eventHandlers.mouseup);
c.addEventListener('mouseup', this._eventHandlers.mouseup);
c.addEventListener('mousemove', this._eventHandlers.mousemove);
c.addEventListener((Util.Engine.gecko) ? 'DOMMouseScroll' : 'mousewheel',
this._eventHandlers.mousewheel);
c.addEventListener('wheel', this._eventHandlers.mousewheel);
/* Work around right and middle click browser behaviors */
document.addEventListener('click', this._eventHandlers.mousedisable);
@ -377,8 +383,7 @@
window.removeEventListener('mouseup', this._eventHandlers.mouseup);
c.removeEventListener('mouseup', this._eventHandlers.mouseup);
c.removeEventListener('mousemove', this._eventHandlers.mousemove);
c.removeEventListener((Util.Engine.gecko) ? 'DOMMouseScroll' : 'mousewheel',
this._eventHandlers.mousewheel);
c.removeEventListener('wheel', this._eventHandlers.mousewheel);
/* Work around right and middle click browser behaviors */
document.removeEventListener('click', this._eventHandlers.mousedisable);