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alexandre_ |
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/*
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Copyright (c) 2004-2006, The Dojo Foundation
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All Rights Reserved.
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Licensed under the Academic Free License version 2.1 or above OR the
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modified BSD license. For more information on Dojo licensing, see:
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http://dojotoolkit.org/community/licensing.shtml
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*/
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dojo.provide("dojo.widget.SlideShow");
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dojo.require("dojo.event.*");
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dojo.require("dojo.widget.*");
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dojo.require("dojo.lfx.*");
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dojo.require("dojo.html.display");
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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 () {
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this.width = this.imgWidth + "px";
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this.height = this.imgHeight + "px";
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}, fillInTemplate:function () {
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if (dojo.render.html.safari && this.imgUrls.length == 2) {
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this.preventCache = true;
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}
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dojo.html.setOpacity(this.img1, 0.9999);
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dojo.html.setOpacity(this.img2, 0.9999);
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if (this.imgUrls.length > 1) {
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this.img2.src = this.imgUrlBase + this.imgUrls[this._urlsIdx++] + this._getUrlSuffix();
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this._endTransition();
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} else {
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this.img1.src = this.imgUrlBase + this.imgUrls[this._urlsIdx++] + this._getUrlSuffix();
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}
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}, _getUrlSuffix:function () {
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if (this.preventCache) {
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return "?ts=" + (new Date()).getTime();
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} else {
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return "";
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}
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}, togglePaused:function () {
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if (this.stopped) {
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this.stopped = false;
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this._backgroundImageLoaded();
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this.startStopButton.value = "pause";
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} else {
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this.stopped = true;
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this.startStopButton.value = "play";
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}
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}, _backgroundImageLoaded:function () {
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if (this.stopped) {
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return;
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}
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if (this.fadeAnim) {
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this.fadeAnim.stop();
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}
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this.fadeAnim = dojo.lfx.fadeOut(this[this._foreground], this.transitionInterval, null);
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dojo.event.connect(this.fadeAnim, "onEnd", this, "_endTransition");
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this.fadeAnim.play();
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}, _endTransition:function () {
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with (this[this._background].style) {
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zIndex = parseInt(zIndex) + 1;
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}
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with (this[this._foreground].style) {
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zIndex = parseInt(zIndex) - 1;
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}
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var tmp = this._foreground;
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this._foreground = this._background;
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this._background = tmp;
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this._loadNextImage();
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}, _loadNextImage:function () {
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dojo.event.kwConnect({srcObj:this[this._background], srcFunc:"onload", adviceObj:this, adviceFunc:"_backgroundImageLoaded", once:true, delay:this.delay});
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dojo.html.setOpacity(this[this._background], 1);
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this[this._background].src = this.imgUrlBase + this.imgUrls[this._urlsIdx++];
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if (this._urlsIdx > (this.imgUrls.length - 1)) {
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this._urlsIdx = 0;
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}
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}});
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