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SlideShow.js

SlideShow.js 9.9 KB
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  1. /*
    2. 

  2. 	Copyright (c) 2004-2009, The Dojo Foundation All Rights Reserved.
    3. 

  3. 	Available via Academic Free License >= 2.1 OR the modified BSD license.
    4. 

  4. 	see: http://dojotoolkit.org/license for details
    5. 

  5. */
    6. 

  6. 

  7. 

  8. if(!dojo._hasResource["dojox.image.SlideShow"]){dojo._hasResource["dojox.image.SlideShow"]=true;dojo.provide("dojox.image.SlideShow");dojo.require("dojo.string");dojo.require("dojo.fx");dojo.require("dijit._Widget");dojo.require("dijit._Templated");dojo.declare("dojox.image.SlideShow",[dijit._Widget,dijit._Templated],{imageHeight:375,imageWidth:500,title:"",titleTemplate:"${title} <span class=\"slideShowCounterText\">(${current} of ${total})</span>",noLink:false,loop:true,hasNav:true,images:[],pageSize:20,autoLoad:true,autoStart:false,fixedHeight:false,imageStore:null,linkAttr:"link",imageLargeAttr:"imageUrl",titleAttr:"title",slideshowInterval:3,templateString:dojo.cache("dojox.image","resources/SlideShow.html","<div dojoAttachPoint=\"outerNode\" class=\"slideShowWrapper\">\n\t<div style=\"position:relative;\" dojoAttachPoint=\"innerWrapper\">\n\t\t<div class=\"slideShowNav\" dojoAttachEvent=\"onclick: _handleClick\">\n\t\t\t<div class=\"dijitInline slideShowTitle\" dojoAttachPoint=\"titleNode\">${title}</div>\n\t\t</div>\n\t\t<div dojoAttachPoint=\"navNode\" class=\"slideShowCtrl\" dojoAttachEvent=\"onclick: _handleClick\">\n\t\t\t<span dojoAttachPoint=\"navPrev\" class=\"slideShowCtrlPrev\"></span>\n\t\t\t<span dojoAttachPoint=\"navPlay\" class=\"slideShowCtrlPlay\"></span>\n\t\t\t<span dojoAttachPoint=\"navNext\" class=\"slideShowCtrlNext\"></span>\n\t\t</div>\n\t\t<div dojoAttachPoint=\"largeNode\" class=\"slideShowImageWrapper\"></div>\t\t\n\t\t<div dojoAttachPoint=\"hiddenNode\" class=\"slideShowHidden\"></div>\n\t</div>\n</div>\n"),_imageCounter:0,_tmpImage:null,_request:null,postCreate:function(){this.inherited(arguments);var _1=document.createElement("img");_1.setAttribute("width",this.imageWidth);_1.setAttribute("height",this.imageHeight);if(this.hasNav){dojo.connect(this.outerNode,"onmouseover",this,function(_2){try{this._showNav();}catch(e){}});dojo.connect(this.outerNode,"onmouseout",this,function(_3){try{this._hideNav(_3);}catch(e){}});}this.outerNode.style.width=this.imageWidth+"px";_1.setAttribute("src",this._blankGif);var _4=this;this.largeNode.appendChild(_1);this._tmpImage=this._currentImage=_1;this._fitSize(true);this._loadImage(0,dojo.hitch(this,"showImage",0));this._calcNavDimensions();},setDataStore:function(_5,_6,_7){this.reset();var _8=this;this._request={query:{},start:_6.start||0,count:_6.count||this.pageSize,onBegin:function(_9,_a){_8.maxPhotos=_9;}};if(_6.query){dojo.mixin(this._request.query,_6.query);}if(_7){dojo.forEach(["imageLargeAttr","linkAttr","titleAttr"],function(_b){if(_7[_b]){this[_b]=_7[_b];}},this);}var _c=function(_d){_8.maxPhotos=_d.length;_8._request.onComplete=null;if(_8.autoStart){_8.imageIndex=-1;_8.toggleSlideShow();}else{_8.showImage(0);}};this.imageStore=_5;this._request.onComplete=_c;this._request.start=0;this.imageStore.fetch(this._request);},reset:function(){dojo.query("> *",this.largeNode).orphan();this.largeNode.appendChild(this._tmpImage);dojo.query("> *",this.hiddenNode).orphan();dojo.forEach(this.images,function(_e){if(_e&&_e.parentNode){_e.parentNode.removeChild(_e);}});this.images=[];this.isInitialized=false;this._imageCounter=0;},isImageLoaded:function(_f){return this.images&&this.images.length>_f&&this.images[_f];},moveImageLoadingPointer:function(_10){this._imageCounter=_10;},destroy:function(){if(this._slideId){this._stop();}this.inherited(arguments);},showNextImage:function(_11,_12){if(_11&&this._timerCancelled){return false;}if(this.imageIndex+1>=this.maxPhotos){if(_11&&(this.loop||_12)){this.imageIndex=-1;}else{if(this._slideId){this._stop();}return false;}}this.showImage(this.imageIndex+1,dojo.hitch(this,function(){if(_11){this._startTimer();}}));return true;},toggleSlideShow:function(){if(this._slideId){this._stop();}else{dojo.toggleClass(this.domNode,"slideShowPaused");this._timerCancelled=false;var idx=this.imageIndex;if(idx<0||(this.images[idx]&&this.images[idx]._img.complete)){var _13=this.showNextImage(true,true);if(!_13){this._stop();}}else{var _14=dojo.subscribe(this.getShowTopicName(),dojo.hitch(this,function(_15){setTimeout(dojo.hitch(this,function(){if(_15.index==idx){var _16=this.showNextImage(true,true);if(!_16){this._stop();}dojo.unsubscribe(_14);}}),this.slideshowInterval*1000);}));dojo.publish(this.getShowTopicName(),[{index:idx,title:"",url:""}]);}}},getShowTopicName:function(){return (this.widgetId||this.id)+"/imageShow";},getLoadTopicName:function(){return (this.widgetId?this.widgetId:this.id)+"/imageLoad";},showImage:function(_17,_18){if(!_18&&this._slideId){this.toggleSlideShow();}var _19=this;var _1a=this.largeNode.getElementsByTagName("div");this.imageIndex=_17;var _1b=function(){if(_19.images[_17]){while(_19.largeNode.firstChild){_19.largeNode.removeChild(_19.largeNode.firstChild);}dojo.style(_19.images[_17],"opacity",0);_19.largeNode.appendChild(_19.images[_17]);_19._currentImage=_19.images[_17]._img;_19._fitSize();var _1c=function(a,b,c){var img=_19.images[_17].firstChild;if(img.tagName.toLowerCase()!="img"){img=img.firstChild;}var _1d=img.getAttribute("title")||"";if(_19._navShowing){_19._showNav(true);}dojo.publish(_19.getShowTopicName(),[{index:_17,title:_1d,url:img.getAttribute("src")}]);if(_18){_18(a,b,c);}_19._setTitle(_1d);};dojo.fadeIn({node:_19.images[_17],duration:300,onEnd:_1c}).play();}else{_19._loadImage(_17,function(){_19.showImage(_17,_18);});}};if(_1a&&_1a.length>0){dojo.fadeOut({node:_1a[0],duration:300,onEnd:function(){_19.hiddenNode.appendChild(_1a[0]);_1b();}}).play();}else{_1b();}},_fitSize:function(_1e){if(!this.fixedHeight||_1e){var _1f=(this._currentImage.height+(this.hasNav?20:0));dojo.style(this.innerWrapper,"height",_1f+"px");return;}dojo.style(this.largeNode,"paddingTop",this._getTopPadding()+"px");},_getTopPadding:function(){if(!this.fixedHeight){return 0;}return (this.imageHeight-this._currentImage.height)/2;},_loadNextImage:function(){if(!this.autoLoad){return;}while(this.images.length>=this._imageCounter&&this.images[this._imageCounter]){this._imageCounter++;}this._loadImage(this._imageCounter);},_loadImage:function(_20,_21){if(this.images[_20]||!this._request){return;}var _22=_20-(_20%(this._request.count||this.pageSize));this._request.start=_22;this._request.onComplete=function(_23){var _24=_20-_22;if(_23&&_23.length>_24){_25(_23[_24]);}else{}};var _26=this;var _27=this.imageStore;var _25=function(_28){var url=_26.imageStore.getValue(_28,_26.imageLargeAttr);var img=new Image();var div=dojo.create("div",{id:_26.id+"_imageDiv"+_20});div._img=img;var _29=_26.imageStore.getValue(_28,_26.linkAttr);if(!_29||_26.noLink){div.appendChild(img);}else{var a=dojo.create("a",{"href":_29,"target":"_blank"},div);a.appendChild(img);}dojo.connect(img,"onload",function(){if(_27!=_26.imageStore){return;}_26._fitImage(img);dojo.attr(div,{"width":_26.imageWidth,"height":_26.imageHeight});dojo.publish(_26.getLoadTopicName(),[_20]);setTimeout(function(){_26._loadNextImage();},1);if(_21){_21();}});_26.hiddenNode.appendChild(div);var _2a=dojo.create("div",{className:"slideShowTitle"},div);_26.images[_20]=div;dojo.attr(img,"src",url);var _2b=_26.imageStore.getValue(_28,_26.titleAttr);if(_2b){dojo.attr(img,"title",_2b);}};this.imageStore.fetch(this._request);},_stop:function(){if(this._slideId){clearTimeout(this._slideId);}this._slideId=null;this._timerCancelled=true;dojo.removeClass(this.domNode,"slideShowPaused");},_prev:function(){if(this.imageIndex<1){return;}this.showImage(this.imageIndex-1);},_next:function(){this.showNextImage();},_startTimer:function(){var id=this.id;this._slideId=setTimeout(function(){dijit.byId(id).showNextImage(true);},this.slideshowInterval*1000);},_calcNavDimensions:function(){dojo.style(this.navNode,"position","absolute");dojo.style(this.navNode,"top","-10000px");dojo._setOpacity(this.navNode,99);this.navPlay._size=dojo.marginBox(this.navPlay);this.navPrev._size=dojo.marginBox(this.navPrev);this.navNext._size=dojo.marginBox(this.navNext);dojo._setOpacity(this.navNode,0);dojo.style(this.navNode,{"position":"",top:""});},_setTitle:function(_2c){this.titleNode.innerHTML=dojo.string.substitute(this.titleTemplate,{title:_2c,current:1+this.imageIndex,total:this.maxPhotos||""});},_fitImage:function(img){var _2d=img.width;var _2e=img.height;if(_2d>this.imageWidth){_2e=Math.floor(_2e*(this.imageWidth/_2d));img.height=_2e;img.width=_2d=this.imageWidth;}if(_2e>this.imageHeight){_2d=Math.floor(_2d*(this.imageHeight/_2e));img.height=this.imageHeight;img.width=_2d;}},_handleClick:function(e){switch(e.target){case this.navNext:this._next();break;case this.navPrev:this._prev();break;case this.navPlay:this.toggleSlideShow();break;}},_showNav:function(_2f){if(this._navShowing&&!_2f){return;}dojo.style(this.navNode,"marginTop","0px");var _30=dojo.style(this.navNode,"width")/2-this.navPlay._size.w/2-this.navPrev._size.w;dojo.style(this.navPlay,"marginLeft",_30+"px");var _31=dojo.marginBox(this.outerNode);var _32=this._currentImage.height-this.navPlay._size.h-10+this._getTopPadding();if(_32>this._currentImage.height){_32+=10;}dojo[this.imageIndex<1?"addClass":"removeClass"](this.navPrev,"slideShowCtrlHide");dojo[this.imageIndex+1>=this.maxPhotos?"addClass":"removeClass"](this.navNext,"slideShowCtrlHide");var _33=this;if(this._navAnim){this._navAnim.stop();}if(this._navShowing){return;}this._navAnim=dojo.fadeIn({node:this.navNode,duration:300,onEnd:function(){_33._navAnim=null;}});this._navAnim.play();this._navShowing=true;},_hideNav:function(e){if(!e||!this._overElement(this.outerNode,e)){var _34=this;if(this._navAnim){this._navAnim.stop();}this._navAnim=dojo.fadeOut({node:this.navNode,duration:300,onEnd:function(){_34._navAnim=null;}});this._navAnim.play();this._navShowing=false;}},_overElement:function(_35,e){if(typeof (dojo)=="undefined"){return false;}_35=dojo.byId(_35);var m={x:e.pageX,y:e.pageY};var bb=dojo._getBorderBox(_35);var _36=dojo.coords(_35,true);var _37=_36.x;return (m.x>=_37&&m.x<=(_37+bb.w)&&m.y>=_36.y&&m.y<=(top+bb.h));}});}
    9.