root / snf-cyclades-app / synnefo / ui / new_ui / ui / older / jquery.mousewheel.js @ faad3c72
History | View | Annotate | Download (3.8 kB)
1 |
/*! Copyright (c) 2013 Brandon Aaron (http://brandonaaron.net)
|
---|---|
2 |
* Licensed under the MIT License (LICENSE.txt).
|
3 |
*
|
4 |
* Thanks to: http://adomas.org/javascript-mouse-wheel/ for some pointers.
|
5 |
* Thanks to: Mathias Bank(http://www.mathias-bank.de) for a scope bug fix.
|
6 |
* Thanks to: Seamus Leahy for adding deltaX and deltaY
|
7 |
*
|
8 |
* Version: 3.1.3
|
9 |
*
|
10 |
* Requires: 1.2.2+
|
11 |
*/
|
12 |
|
13 |
(function (factory) {
|
14 |
if ( typeof define === 'function' && define.amd ) { |
15 |
// AMD. Register as an anonymous module.
|
16 |
define(['jquery'], factory);
|
17 |
} else if (typeof exports === 'object') { |
18 |
// Node/CommonJS style for Browserify
|
19 |
module.exports = factory; |
20 |
} else {
|
21 |
// Browser globals
|
22 |
factory(jQuery); |
23 |
} |
24 |
}(function ($) { |
25 |
|
26 |
var toFix = ['wheel', 'mousewheel', 'DOMMouseScroll', 'MozMousePixelScroll']; |
27 |
var toBind = 'onwheel' in document || document.documentMode >= 9 ? ['wheel'] : ['mousewheel', 'DomMouseScroll', 'MozMousePixelScroll']; |
28 |
var lowestDelta, lowestDeltaXY;
|
29 |
|
30 |
if ( $.event.fixHooks ) { |
31 |
for ( var i = toFix.length; i; ) { |
32 |
$.event.fixHooks[ toFix[--i] ] = $.event.mouseHooks; |
33 |
} |
34 |
} |
35 |
|
36 |
$.event.special.mousewheel = {
|
37 |
setup: function() { |
38 |
if ( this.addEventListener ) { |
39 |
for ( var i = toBind.length; i; ) { |
40 |
this.addEventListener( toBind[--i], handler, false ); |
41 |
} |
42 |
} else {
|
43 |
this.onmousewheel = handler;
|
44 |
} |
45 |
}, |
46 |
|
47 |
teardown: function() { |
48 |
if ( this.removeEventListener ) { |
49 |
for ( var i = toBind.length; i; ) { |
50 |
this.removeEventListener( toBind[--i], handler, false ); |
51 |
} |
52 |
} else {
|
53 |
this.onmousewheel = null; |
54 |
} |
55 |
} |
56 |
}; |
57 |
|
58 |
$.fn.extend({
|
59 |
mousewheel: function(fn) { |
60 |
return fn ? this.bind("mousewheel", fn) : this.trigger("mousewheel"); |
61 |
}, |
62 |
|
63 |
unmousewheel: function(fn) { |
64 |
return this.unbind("mousewheel", fn); |
65 |
} |
66 |
}); |
67 |
|
68 |
|
69 |
function handler(event) { |
70 |
var orgEvent = event || window.event,
|
71 |
args = [].slice.call(arguments, 1), |
72 |
delta = 0,
|
73 |
deltaX = 0,
|
74 |
deltaY = 0,
|
75 |
absDelta = 0,
|
76 |
absDeltaXY = 0,
|
77 |
fn; |
78 |
event = $.event.fix(orgEvent);
|
79 |
event.type = "mousewheel";
|
80 |
|
81 |
// Old school scrollwheel delta
|
82 |
if ( orgEvent.wheelDelta ) { delta = orgEvent.wheelDelta; }
|
83 |
if ( orgEvent.detail ) { delta = orgEvent.detail * -1; } |
84 |
|
85 |
// New school wheel delta (wheel event)
|
86 |
if ( orgEvent.deltaY ) {
|
87 |
deltaY = orgEvent.deltaY * -1;
|
88 |
delta = deltaY; |
89 |
} |
90 |
if ( orgEvent.deltaX ) {
|
91 |
deltaX = orgEvent.deltaX; |
92 |
delta = deltaX * -1;
|
93 |
} |
94 |
|
95 |
// Webkit
|
96 |
if ( orgEvent.wheelDeltaY !== undefined ) { deltaY = orgEvent.wheelDeltaY; } |
97 |
if ( orgEvent.wheelDeltaX !== undefined ) { deltaX = orgEvent.wheelDeltaX * -1; } |
98 |
|
99 |
// Look for lowest delta to normalize the delta values
|
100 |
absDelta = Math.abs(delta); |
101 |
if ( !lowestDelta || absDelta < lowestDelta ) { lowestDelta = absDelta; }
|
102 |
absDeltaXY = Math.max(Math.abs(deltaY), Math.abs(deltaX)); |
103 |
if ( !lowestDeltaXY || absDeltaXY < lowestDeltaXY ) { lowestDeltaXY = absDeltaXY; }
|
104 |
|
105 |
// Get a whole value for the deltas
|
106 |
fn = delta > 0 ? 'floor' : 'ceil'; |
107 |
delta = Math[fn](delta / lowestDelta); |
108 |
deltaX = Math[fn](deltaX / lowestDeltaXY); |
109 |
deltaY = Math[fn](deltaY / lowestDeltaXY); |
110 |
|
111 |
// Add event and delta to the front of the arguments
|
112 |
args.unshift(event, delta, deltaX, deltaY); |
113 |
|
114 |
return ($.event.dispatch || $.event.handle).apply(this, args); |
115 |
} |
116 |
|
117 |
})); |