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External: Update mousewheel plugin, copy only main file
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,101 +1,220 @@ | ||
| /*! Copyright (c) 2013 Brandon Aaron (http://brandonaaron.net) | ||
| /*! Copyright (c) 2013 Brandon Aaron (http://brandon.aaron.sh) | ||
| * Licensed under the MIT License (LICENSE.txt). | ||
| * | ||
| * Thanks to: http://adomas.org/javascript-mouse-wheel/ for some pointers. | ||
| * Thanks to: Mathias Bank(http://www.mathias-bank.de) for a scope bug fix. | ||
| * Thanks to: Seamus Leahy for adding deltaX and deltaY | ||
| * Version: 3.1.11 | ||
| * | ||
| * Version: 3.1.0 | ||
| * | ||
| * Requires: 1.2.2+ | ||
| * Requires: jQuery 1.2.2+ | ||
| */ | ||
|
|
||
| (function (factory) { | ||
| if (typeof define === 'function' && define.amd) { | ||
| if ( typeof define === 'function' && define.amd ) { | ||
| // AMD. Register as an anonymous module. | ||
| define(['jquery'], factory); | ||
| } else if (typeof exports === 'object') { | ||
| // Node/CommonJS style for Browserify | ||
| module.exports = factory; | ||
| } else { | ||
| // Browser globals | ||
| factory(jQuery); | ||
| } | ||
| }(function ($) { | ||
|
|
||
| var toFix = ['wheel', 'mousewheel', 'DOMMouseScroll']; | ||
| var toBind = 'onwheel' in document || document.documentMode >= 9 ? ['wheel'] : ['mousewheel', 'DomMouseScroll', 'MozMousePixelScroll']; | ||
| var lowestDelta, lowestDeltaXY; | ||
| var toFix = ['wheel', 'mousewheel', 'DOMMouseScroll', 'MozMousePixelScroll'], | ||
| toBind = ( 'onwheel' in document || document.documentMode >= 9 ) ? | ||
| ['wheel'] : ['mousewheel', 'DomMouseScroll', 'MozMousePixelScroll'], | ||
| slice = Array.prototype.slice, | ||
| nullLowestDeltaTimeout, lowestDelta; | ||
|
|
||
| if ($.event.fixHooks) { | ||
| for ( var i=toFix.length; i; ) { | ||
| if ( $.event.fixHooks ) { | ||
| for ( var i = toFix.length; i; ) { | ||
| $.event.fixHooks[ toFix[--i] ] = $.event.mouseHooks; | ||
| } | ||
| } | ||
|
|
||
| $.event.special.mousewheel = { | ||
| var special = $.event.special.mousewheel = { | ||
| version: '3.1.11', | ||
|
|
||
| setup: function() { | ||
| if ( this.addEventListener ) { | ||
| for ( var i=toBind.length; i; ) { | ||
| for ( var i = toBind.length; i; ) { | ||
| this.addEventListener( toBind[--i], handler, false ); | ||
| } | ||
| } else { | ||
| this.onmousewheel = handler; | ||
| } | ||
| // Store the line height and page height for this particular element | ||
| $.data(this, 'mousewheel-line-height', special.getLineHeight(this)); | ||
| $.data(this, 'mousewheel-page-height', special.getPageHeight(this)); | ||
| }, | ||
|
|
||
| teardown: function() { | ||
| if ( this.removeEventListener ) { | ||
| for ( var i=toBind.length; i; ) { | ||
| for ( var i = toBind.length; i; ) { | ||
| this.removeEventListener( toBind[--i], handler, false ); | ||
| } | ||
| } else { | ||
| this.onmousewheel = null; | ||
| } | ||
| // Clean up the data we added to the element | ||
| $.removeData(this, 'mousewheel-line-height'); | ||
| $.removeData(this, 'mousewheel-page-height'); | ||
| }, | ||
|
|
||
| getLineHeight: function(elem) { | ||
| var $parent = $(elem)['offsetParent' in $.fn ? 'offsetParent' : 'parent'](); | ||
| if (!$parent.length) { | ||
| $parent = $('body'); | ||
| } | ||
| return parseInt($parent.css('fontSize'), 10); | ||
| }, | ||
|
|
||
| getPageHeight: function(elem) { | ||
| return $(elem).height(); | ||
| }, | ||
|
|
||
| settings: { | ||
| adjustOldDeltas: true, // see shouldAdjustOldDeltas() below | ||
| normalizeOffset: true // calls getBoundingClientRect for each event | ||
| } | ||
| }; | ||
|
|
||
| $.fn.extend({ | ||
| mousewheel: function(fn) { | ||
| return fn ? this.bind("mousewheel", fn) : this.trigger("mousewheel"); | ||
| return fn ? this.bind('mousewheel', fn) : this.trigger('mousewheel'); | ||
| }, | ||
|
|
||
| unmousewheel: function(fn) { | ||
| return this.unbind("mousewheel", fn); | ||
| return this.unbind('mousewheel', fn); | ||
| } | ||
| }); | ||
|
|
||
|
|
||
| function handler(event) { | ||
| var orgEvent = event || window.event, args = [].slice.call( arguments, 1 ), delta = 0, deltaX = 0, deltaY = 0, absDelta = 0, absDeltaXY = 0; | ||
| var orgEvent = event || window.event, | ||
| args = slice.call(arguments, 1), | ||
| delta = 0, | ||
| deltaX = 0, | ||
| deltaY = 0, | ||
| absDelta = 0, | ||
| offsetX = 0, | ||
| offsetY = 0; | ||
| event = $.event.fix(orgEvent); | ||
| event.type = "mousewheel"; | ||
| event.type = 'mousewheel'; | ||
|
|
||
| // Old school scrollwheel delta | ||
| if ( orgEvent.wheelDelta ) { delta = orgEvent.wheelDelta; } | ||
| if ( orgEvent.detail ) { delta = orgEvent.detail * -1; } | ||
| if ( 'detail' in orgEvent ) { deltaY = orgEvent.detail * -1; } | ||
| if ( 'wheelDelta' in orgEvent ) { deltaY = orgEvent.wheelDelta; } | ||
| if ( 'wheelDeltaY' in orgEvent ) { deltaY = orgEvent.wheelDeltaY; } | ||
| if ( 'wheelDeltaX' in orgEvent ) { deltaX = orgEvent.wheelDeltaX * -1; } | ||
|
|
||
| // Firefox < 17 horizontal scrolling related to DOMMouseScroll event | ||
| if ( 'axis' in orgEvent && orgEvent.axis === orgEvent.HORIZONTAL_AXIS ) { | ||
| deltaX = deltaY * -1; | ||
| deltaY = 0; | ||
| } | ||
|
|
||
| // Set delta to be deltaY or deltaX if deltaY is 0 for backwards compatabilitiy | ||
| delta = deltaY === 0 ? deltaX : deltaY; | ||
|
|
||
| // New school wheel delta (wheel event) | ||
| if ( orgEvent.deltaY ) { | ||
| if ( 'deltaY' in orgEvent ) { | ||
| deltaY = orgEvent.deltaY * -1; | ||
| delta = deltaY; | ||
| } | ||
| if ( orgEvent.deltaX ) { | ||
| if ( 'deltaX' in orgEvent ) { | ||
| deltaX = orgEvent.deltaX; | ||
| delta = deltaX * -1; | ||
| if ( deltaY === 0 ) { delta = deltaX * -1; } | ||
| } | ||
|
|
||
| // No change actually happened, no reason to go any further | ||
| if ( deltaY === 0 && deltaX === 0 ) { return; } | ||
|
|
||
| // Need to convert lines and pages to pixels if we aren't already in pixels | ||
| // There are three delta modes: | ||
| // * deltaMode 0 is by pixels, nothing to do | ||
| // * deltaMode 1 is by lines | ||
| // * deltaMode 2 is by pages | ||
| if ( orgEvent.deltaMode === 1 ) { | ||
| var lineHeight = $.data(this, 'mousewheel-line-height'); | ||
| delta *= lineHeight; | ||
| deltaY *= lineHeight; | ||
| deltaX *= lineHeight; | ||
| } else if ( orgEvent.deltaMode === 2 ) { | ||
| var pageHeight = $.data(this, 'mousewheel-page-height'); | ||
| delta *= pageHeight; | ||
| deltaY *= pageHeight; | ||
| deltaX *= pageHeight; | ||
| } | ||
|
|
||
| // Webkit | ||
| if ( orgEvent.wheelDeltaY !== undefined ) { deltaY = orgEvent.wheelDeltaY; } | ||
| if ( orgEvent.wheelDeltaX !== undefined ) { deltaX = orgEvent.wheelDeltaX * -1; } | ||
| // Store lowest absolute delta to normalize the delta values | ||
| absDelta = Math.max( Math.abs(deltaY), Math.abs(deltaX) ); | ||
|
|
||
| absDelta = Math.abs(delta); | ||
| if ( !lowestDelta || absDelta < lowestDelta ) { lowestDelta = absDelta; } | ||
| if ( !lowestDelta || absDelta < lowestDelta ) { | ||
| lowestDelta = absDelta; | ||
|
|
||
| absDeltaXY = Math.max( Math.abs(deltaY), Math.abs(deltaX) ); | ||
| if ( !lowestDeltaXY || absDeltaXY < lowestDeltaXY ) { lowestDeltaXY = absDeltaXY; } | ||
| // Adjust older deltas if necessary | ||
| if ( shouldAdjustOldDeltas(orgEvent, absDelta) ) { | ||
| lowestDelta /= 40; | ||
| } | ||
| } | ||
|
|
||
| // Adjust older deltas if necessary | ||
| if ( shouldAdjustOldDeltas(orgEvent, absDelta) ) { | ||
| // Divide all the things by 40! | ||
| delta /= 40; | ||
| deltaX /= 40; | ||
| deltaY /= 40; | ||
| } | ||
|
|
||
| // Get a whole, normalized value for the deltas | ||
| delta = Math[ delta >= 1 ? 'floor' : 'ceil' ](delta / lowestDelta); | ||
| deltaX = Math[ deltaX >= 1 ? 'floor' : 'ceil' ](deltaX / lowestDelta); | ||
| deltaY = Math[ deltaY >= 1 ? 'floor' : 'ceil' ](deltaY / lowestDelta); | ||
|
|
||
| // Normalise offsetX and offsetY properties | ||
| if ( special.settings.normalizeOffset && this.getBoundingClientRect ) { | ||
| var boundingRect = this.getBoundingClientRect(); | ||
| offsetX = event.clientX - boundingRect.left; | ||
| offsetY = event.clientY - boundingRect.top; | ||
| } | ||
|
|
||
| // Add information to the event object | ||
| event.deltaX = deltaX; | ||
| event.deltaY = deltaY; | ||
| event.deltaFactor = lowestDelta; | ||
| event.offsetX = offsetX; | ||
| event.offsetY = offsetY; | ||
| // Go ahead and set deltaMode to 0 since we converted to pixels | ||
| // Although this is a little odd since we overwrite the deltaX/Y | ||
| // properties with normalized deltas. | ||
| event.deltaMode = 0; | ||
|
|
||
| // Add event and delta to the front of the arguments | ||
| args.unshift(event, Math.floor(delta/lowestDelta), Math.floor(deltaX/lowestDeltaXY), Math.floor(deltaY/lowestDeltaXY)); | ||
| args.unshift(event, delta, deltaX, deltaY); | ||
|
|
||
| // Clearout lowestDelta after sometime to better | ||
| // handle multiple device types that give different | ||
| // a different lowestDelta | ||
| // Ex: trackpad = 3 and mouse wheel = 120 | ||
| if (nullLowestDeltaTimeout) { clearTimeout(nullLowestDeltaTimeout); } | ||
| nullLowestDeltaTimeout = setTimeout(nullLowestDelta, 200); | ||
|
|
||
| return ($.event.dispatch || $.event.handle).apply(this, args); | ||
| } | ||
|
|
||
| function nullLowestDelta() { | ||
| lowestDelta = null; | ||
| } | ||
|
|
||
| function shouldAdjustOldDeltas(orgEvent, absDelta) { | ||
| // If this is an older event and the delta is divisable by 120, | ||
| // then we are assuming that the browser is treating this as an | ||
| // older mouse wheel event and that we should divide the deltas | ||
| // by 40 to try and get a more usable deltaFactor. | ||
| // Side note, this actually impacts the reported scroll distance | ||
| // in older browsers and can cause scrolling to be slower than native. | ||
| // Turn this off by setting $.event.special.mousewheel.settings.adjustOldDeltas to false. | ||
| return special.settings.adjustOldDeltas && orgEvent.type === 'mousewheel' && absDelta % 120 === 0; | ||
| } | ||
|
|
||
| })); |