| /* |
| Copyright (c) 2004-2006, The Dojo Foundation |
| All Rights Reserved. |
| |
| Licensed under the Academic Free License version 2.1 or above OR the |
| modified BSD license. For more information on Dojo licensing, see: |
| |
| http://dojotoolkit.org/community/licensing.shtml |
| */ |
| |
| |
| |
| dojo.provide("dojo.widget.SlideShow"); |
| dojo.require("dojo.event.*"); |
| dojo.require("dojo.widget.*"); |
| dojo.require("dojo.lfx.*"); |
| dojo.require("dojo.html.display"); |
| dojo.widget.defineWidget("dojo.widget.SlideShow", dojo.widget.HtmlWidget, {templateString:"<div style=\"position: relative; padding: 3px;\">\n\t\t<div>\n\t\t\t<input type=\"button\" value=\"pause\" \n\t\t\t\tdojoAttachPoint=\"startStopButton\"\n\t\t\t\tdojoAttachEvent=\"onClick: togglePaused;\">\n\t\t</div>\n\t\t<div style=\"position: relative; width: ${this.width}; height: ${this.height};\"\n\t\t\tdojoAttachPoint=\"imagesContainer\"\n\t\t\tdojoAttachEvent=\"onClick: togglePaused;\">\n\t\t\t<img dojoAttachPoint=\"img1\" class=\"slideShowImg\" \n\t\t\t\tstyle=\"z-index: 1; width: ${this.width}; height: ${this.height};\" />\n\t\t\t<img dojoAttachPoint=\"img2\" class=\"slideShowImg\" \n\t\t\t\tstyle=\"z-index: 0; width: ${this.width}; height: ${this.height};\" />\n\t\t</div>\t\n</div>\n", templateCssString:".slideShowImg {\n\tposition: absolute;\n\tleft: 0px;\n\ttop: 0px; \n\tborder: 2px solid #4d4d4d;\n\tpadding: 0px;\n\tmargin: 0px;\n}\n\n", templateCssPath:dojo.uri.moduleUri("dojo.widget", "templates/SlideShow.css"), imgUrls:[], imgUrlBase:"", delay:4000, transitionInterval:2000, imgWidth:800, imgHeight:600, preventCache:false, stopped:false, _urlsIdx:0, _background:"img2", _foreground:"img1", fadeAnim:null, startStopButton:null, img1:null, img2:null, postMixInProperties:function () { |
| this.width = this.imgWidth + "px"; |
| this.height = this.imgHeight + "px"; |
| }, fillInTemplate:function () { |
| if (dojo.render.html.safari && this.imgUrls.length == 2) { |
| this.preventCache = true; |
| } |
| dojo.html.setOpacity(this.img1, 0.9999); |
| dojo.html.setOpacity(this.img2, 0.9999); |
| if (this.imgUrls.length > 1) { |
| this.img2.src = this.imgUrlBase + this.imgUrls[this._urlsIdx++] + this._getUrlSuffix(); |
| this._endTransition(); |
| } else { |
| this.img1.src = this.imgUrlBase + this.imgUrls[this._urlsIdx++] + this._getUrlSuffix(); |
| } |
| }, _getUrlSuffix:function () { |
| if (this.preventCache) { |
| return "?ts=" + (new Date()).getTime(); |
| } else { |
| return ""; |
| } |
| }, togglePaused:function () { |
| if (this.stopped) { |
| this.stopped = false; |
| this._backgroundImageLoaded(); |
| this.startStopButton.value = "pause"; |
| } else { |
| this.stopped = true; |
| this.startStopButton.value = "play"; |
| } |
| }, _backgroundImageLoaded:function () { |
| if (this.stopped) { |
| return; |
| } |
| if (this.fadeAnim) { |
| this.fadeAnim.stop(); |
| } |
| this.fadeAnim = dojo.lfx.fadeOut(this[this._foreground], this.transitionInterval, null); |
| dojo.event.connect(this.fadeAnim, "onEnd", this, "_endTransition"); |
| this.fadeAnim.play(); |
| }, _endTransition:function () { |
| with (this[this._background].style) { |
| zIndex = parseInt(zIndex) + 1; |
| } |
| with (this[this._foreground].style) { |
| zIndex = parseInt(zIndex) - 1; |
| } |
| var tmp = this._foreground; |
| this._foreground = this._background; |
| this._background = tmp; |
| this._loadNextImage(); |
| }, _loadNextImage:function () { |
| dojo.event.kwConnect({srcObj:this[this._background], srcFunc:"onload", adviceObj:this, adviceFunc:"_backgroundImageLoaded", once:true, delay:this.delay}); |
| dojo.html.setOpacity(this[this._background], 1); |
| this[this._background].src = this.imgUrlBase + this.imgUrls[this._urlsIdx++]; |
| if (this._urlsIdx > (this.imgUrls.length - 1)) { |
| this._urlsIdx = 0; |
| } |
| }}); |
| |