[76] | 1 | /*! |
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| 2 | * Ext JS Library 3.4.0 |
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| 3 | * Copyright(c) 2006-2011 Sencha Inc. |
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| 4 | * licensing@sencha.com |
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| 5 | * http://www.sencha.com/license |
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| 6 | */ |
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| 7 | Ext.ns('Ext.ux'); |
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| 8 | |
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| 9 | Ext.ux.Carousel = Ext.extend(Ext.util.Observable, { |
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| 10 | interval: 3, |
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| 11 | transitionDuration: 1, |
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| 12 | transitionType: 'carousel', |
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| 13 | transitionEasing: 'easeOut', |
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| 14 | itemSelector: 'img', |
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| 15 | activeSlide: 0, |
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| 16 | autoPlay: false, |
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| 17 | showPlayButton: false, |
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| 18 | pauseOnNavigate: false, |
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| 19 | wrap: false, |
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| 20 | freezeOnHover: false, |
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| 21 | navigationOnHover: false, |
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| 22 | hideNavigation: false, |
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| 23 | width: null, |
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| 24 | height: null, |
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| 25 | |
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| 26 | constructor: function(elId, config) { |
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| 27 | config = config || {}; |
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| 28 | Ext.apply(this, config); |
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| 29 | |
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| 30 | Ext.ux.Carousel.superclass.constructor.call(this, config); |
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| 31 | |
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| 32 | this.addEvents( |
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| 33 | 'beforeprev', |
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| 34 | 'prev', |
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| 35 | 'beforenext', |
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| 36 | 'next', |
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| 37 | 'change', |
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| 38 | 'play', |
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| 39 | 'pause', |
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| 40 | 'freeze', |
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| 41 | 'unfreeze' |
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| 42 | ); |
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| 43 | |
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| 44 | this.el = Ext.get(elId); |
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| 45 | this.slides = this.els = []; |
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| 46 | |
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| 47 | if(this.autoPlay || this.showPlayButton) { |
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| 48 | this.wrap = true; |
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| 49 | }; |
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| 50 | |
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| 51 | if(this.autoPlay && typeof config.showPlayButton === 'undefined') { |
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| 52 | this.showPlayButton = true; |
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| 53 | } |
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| 54 | |
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| 55 | this.initMarkup(); |
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| 56 | this.initEvents(); |
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| 57 | |
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| 58 | if(this.carouselSize > 0) { |
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| 59 | this.refresh(); |
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| 60 | } |
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| 61 | }, |
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| 62 | |
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| 63 | initMarkup: function() { |
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| 64 | var dh = Ext.DomHelper; |
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| 65 | |
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| 66 | this.carouselSize = 0; |
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| 67 | var items = this.el.select(this.itemSelector); |
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| 68 | this.els.container = dh.append(this.el, {cls: 'ux-carousel-container'}, true); |
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| 69 | this.els.slidesWrap = dh.append(this.els.container, {cls: 'ux-carousel-slides-wrap'}, true); |
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| 70 | |
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| 71 | this.els.navigation = dh.append(this.els.container, {cls: 'ux-carousel-nav'}, true).hide(); |
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| 72 | this.els.caption = dh.append(this.els.navigation, {tag: 'h2', cls: 'ux-carousel-caption'}, true); |
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| 73 | this.els.navNext = dh.append(this.els.navigation, {tag: 'a', href: '#', cls: 'ux-carousel-nav-next'}, true); |
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| 74 | if(this.showPlayButton) { |
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| 75 | this.els.navPlay = dh.append(this.els.navigation, {tag: 'a', href: '#', cls: 'ux-carousel-nav-play'}, true) |
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| 76 | } |
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| 77 | this.els.navPrev = dh.append(this.els.navigation, {tag: 'a', href: '#', cls: 'ux-carousel-nav-prev'}, true); |
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| 78 | |
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| 79 | // set the dimensions of the container |
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| 80 | this.slideWidth = this.width || this.el.getWidth(true); |
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| 81 | this.slideHeight = this.height || this.el.getHeight(true); |
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| 82 | this.els.container.setStyle({ |
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| 83 | width: this.slideWidth + 'px', |
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| 84 | height: this.slideHeight + 'px' |
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| 85 | }); |
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| 86 | |
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| 87 | this.els.caption.setWidth((this.slideWidth - (this.els.navNext.getWidth()*2) - (this.showPlayButton ? this.els.navPlay.getWidth() : 0) - 20) + 'px') |
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| 88 | |
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| 89 | items.appendTo(this.els.slidesWrap).each(function(item) { |
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| 90 | item = item.wrap({cls: 'ux-carousel-slide'}); |
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| 91 | this.slides.push(item); |
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| 92 | item.setWidth(this.slideWidth + 'px').setHeight(this.slideHeight + 'px'); |
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| 93 | }, this); |
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| 94 | this.carouselSize = this.slides.length; |
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| 95 | if(this.navigationOnHover) { |
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| 96 | this.els.navigation.setStyle('top', (-1*this.els.navigation.getHeight()) + 'px'); |
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| 97 | } |
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| 98 | this.el.clip(); |
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| 99 | }, |
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| 100 | |
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| 101 | initEvents: function() { |
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| 102 | this.els.navPrev.on('click', function(ev) { |
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| 103 | ev.preventDefault(); |
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| 104 | var target = ev.getTarget(); |
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| 105 | target.blur(); |
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| 106 | if(Ext.fly(target).hasClass('ux-carousel-nav-disabled')) return; |
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| 107 | this.prev(); |
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| 108 | }, this); |
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| 109 | |
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| 110 | this.els.navNext.on('click', function(ev) { |
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| 111 | ev.preventDefault(); |
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| 112 | var target = ev.getTarget(); |
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| 113 | target.blur(); |
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| 114 | if(Ext.fly(target).hasClass('ux-carousel-nav-disabled')) return; |
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| 115 | this.next(); |
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| 116 | }, this); |
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| 117 | |
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| 118 | if(this.showPlayButton) { |
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| 119 | this.els.navPlay.on('click', function(ev){ |
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| 120 | ev.preventDefault(); |
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| 121 | ev.getTarget().blur(); |
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| 122 | if(this.playing) { |
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| 123 | this.pause(); |
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| 124 | } |
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| 125 | else { |
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| 126 | this.play(); |
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| 127 | } |
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| 128 | }, this); |
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| 129 | }; |
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| 130 | |
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| 131 | if(this.freezeOnHover) { |
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| 132 | this.els.container.on('mouseenter', function(){ |
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| 133 | if(this.playing) { |
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| 134 | this.fireEvent('freeze', this.slides[this.activeSlide]); |
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| 135 | Ext.TaskMgr.stop(this.playTask); |
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| 136 | } |
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| 137 | }, this); |
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| 138 | this.els.container.on('mouseleave', function(){ |
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| 139 | if(this.playing) { |
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| 140 | this.fireEvent('unfreeze', this.slides[this.activeSlide]); |
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| 141 | Ext.TaskMgr.start(this.playTask); |
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| 142 | } |
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| 143 | }, this, {buffer: (this.interval/2)*1000}); |
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| 144 | }; |
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| 145 | |
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| 146 | if(this.navigationOnHover) { |
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| 147 | this.els.container.on('mouseenter', function(){ |
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| 148 | if(!this.navigationShown) { |
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| 149 | this.navigationShown = true; |
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| 150 | this.els.navigation.stopFx(false).shift({ |
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| 151 | y: this.els.container.getY(), |
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| 152 | duration: this.transitionDuration |
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| 153 | }) |
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| 154 | } |
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| 155 | }, this); |
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| 156 | |
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| 157 | this.els.container.on('mouseleave', function(){ |
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| 158 | if(this.navigationShown) { |
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| 159 | this.navigationShown = false; |
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| 160 | this.els.navigation.stopFx(false).shift({ |
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| 161 | y: this.els.navigation.getHeight() - this.els.container.getY(), |
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| 162 | duration: this.transitionDuration |
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| 163 | }) |
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| 164 | } |
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| 165 | }, this); |
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| 166 | } |
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| 167 | |
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| 168 | if(this.interval && this.autoPlay) { |
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| 169 | this.play(); |
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| 170 | }; |
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| 171 | }, |
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| 172 | |
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| 173 | prev: function() { |
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| 174 | if (this.fireEvent('beforeprev') === false) { |
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| 175 | return; |
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| 176 | } |
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| 177 | if(this.pauseOnNavigate) { |
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| 178 | this.pause(); |
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| 179 | } |
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| 180 | this.setSlide(this.activeSlide - 1); |
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| 181 | |
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| 182 | this.fireEvent('prev', this.activeSlide); |
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| 183 | return this; |
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| 184 | }, |
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| 185 | |
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| 186 | next: function() { |
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| 187 | if(this.fireEvent('beforenext') === false) { |
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| 188 | return; |
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| 189 | } |
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| 190 | if(this.pauseOnNavigate) { |
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| 191 | this.pause(); |
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| 192 | } |
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| 193 | this.setSlide(this.activeSlide + 1); |
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| 194 | |
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| 195 | this.fireEvent('next', this.activeSlide); |
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| 196 | return this; |
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| 197 | }, |
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| 198 | |
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| 199 | play: function() { |
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| 200 | if(!this.playing) { |
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| 201 | this.playTask = this.playTask || { |
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| 202 | run: function() { |
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| 203 | this.playing = true; |
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| 204 | this.setSlide(this.activeSlide+1); |
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| 205 | }, |
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| 206 | interval: this.interval*1000, |
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| 207 | scope: this |
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| 208 | }; |
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| 209 | |
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| 210 | this.playTaskBuffer = this.playTaskBuffer || new Ext.util.DelayedTask(function() { |
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| 211 | Ext.TaskMgr.start(this.playTask); |
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| 212 | }, this); |
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| 213 | |
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| 214 | this.playTaskBuffer.delay(this.interval*1000); |
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| 215 | this.playing = true; |
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| 216 | if(this.showPlayButton) { |
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| 217 | this.els.navPlay.addClass('ux-carousel-playing'); |
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| 218 | } |
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| 219 | this.fireEvent('play'); |
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| 220 | } |
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| 221 | return this; |
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| 222 | }, |
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| 223 | |
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| 224 | pause: function() { |
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| 225 | if(this.playing) { |
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| 226 | Ext.TaskMgr.stop(this.playTask); |
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| 227 | this.playTaskBuffer.cancel(); |
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| 228 | this.playing = false; |
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| 229 | if(this.showPlayButton) { |
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| 230 | this.els.navPlay.removeClass('ux-carousel-playing'); |
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| 231 | } |
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| 232 | this.fireEvent('pause'); |
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| 233 | } |
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| 234 | return this; |
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| 235 | }, |
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| 236 | |
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| 237 | clear: function() { |
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| 238 | this.els.slidesWrap.update(''); |
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| 239 | this.slides = []; |
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| 240 | this.carouselSize = 0; |
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| 241 | this.pause(); |
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| 242 | return this; |
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| 243 | }, |
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| 244 | |
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| 245 | add: function(el, refresh) { |
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| 246 | var item = Ext.fly(el).appendTo(this.els.slidesWrap).wrap({cls: 'ux-carousel-slide'}); |
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| 247 | item.setWidth(this.slideWidth + 'px').setHeight(this.slideHeight + 'px'); |
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| 248 | this.slides.push(item); |
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| 249 | if(refresh) { |
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| 250 | this.refresh(); |
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| 251 | } |
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| 252 | return this; |
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| 253 | }, |
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| 254 | |
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| 255 | refresh: function() { |
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| 256 | this.carouselSize = this.slides.length; |
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| 257 | this.els.slidesWrap.setWidth((this.slideWidth * this.carouselSize) + 'px'); |
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| 258 | if(this.carouselSize > 0) { |
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| 259 | if(!this.hideNavigation) this.els.navigation.show(); |
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| 260 | this.activeSlide = 0; |
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| 261 | this.setSlide(0, true); |
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| 262 | } |
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| 263 | return this; |
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| 264 | }, |
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| 265 | |
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| 266 | setSlide: function(index, initial) { |
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| 267 | if(!this.wrap && !this.slides[index]) { |
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| 268 | return; |
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| 269 | } |
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| 270 | else if(this.wrap) { |
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| 271 | if(index < 0) { |
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| 272 | index = this.carouselSize-1; |
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| 273 | } |
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| 274 | else if(index > this.carouselSize-1) { |
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| 275 | index = 0; |
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| 276 | } |
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| 277 | } |
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| 278 | if(!this.slides[index]) { |
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| 279 | return; |
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| 280 | } |
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| 281 | |
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| 282 | this.els.caption.update(this.slides[index].child(':first-child', true).title || ''); |
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| 283 | var offset = index * this.slideWidth; |
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| 284 | if (!initial) { |
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| 285 | switch (this.transitionType) { |
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| 286 | case 'fade': |
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| 287 | this.slides[index].setOpacity(0); |
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| 288 | this.slides[this.activeSlide].stopFx(false).fadeOut({ |
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| 289 | duration: this.transitionDuration / 2, |
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| 290 | callback: function(){ |
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| 291 | this.els.slidesWrap.setStyle('left', (-1 * offset) + 'px'); |
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| 292 | this.slides[this.activeSlide].setOpacity(1); |
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| 293 | this.slides[index].fadeIn({ |
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| 294 | duration: this.transitionDuration / 2 |
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| 295 | }); |
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| 296 | }, |
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| 297 | scope: this |
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| 298 | }) |
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| 299 | break; |
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| 300 | |
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| 301 | default: |
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| 302 | var xNew = (-1 * offset) + this.els.container.getX(); |
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| 303 | this.els.slidesWrap.stopFx(false); |
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| 304 | this.els.slidesWrap.shift({ |
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| 305 | duration: this.transitionDuration, |
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| 306 | x: xNew, |
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| 307 | easing: this.transitionEasing |
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| 308 | }); |
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| 309 | break; |
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| 310 | } |
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| 311 | } |
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| 312 | else { |
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| 313 | this.els.slidesWrap.setStyle('left', '0'); |
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| 314 | } |
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| 315 | |
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| 316 | this.activeSlide = index; |
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| 317 | this.updateNav(); |
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| 318 | this.fireEvent('change', this.slides[index], index); |
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| 319 | }, |
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| 320 | |
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| 321 | updateNav: function() { |
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| 322 | this.els.navPrev.removeClass('ux-carousel-nav-disabled'); |
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| 323 | this.els.navNext.removeClass('ux-carousel-nav-disabled'); |
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| 324 | if(!this.wrap) { |
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| 325 | if(this.activeSlide === 0) { |
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| 326 | this.els.navPrev.addClass('ux-carousel-nav-disabled'); |
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| 327 | } |
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| 328 | if(this.activeSlide === this.carouselSize-1) { |
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| 329 | this.els.navNext.addClass('ux-carousel-nav-disabled'); |
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| 330 | } |
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| 331 | } |
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| 332 | } |
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| 333 | }); |
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