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root / trunk / web / dojo / dojox / image / LightboxNano.js

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/*
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        Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
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        Available via Academic Free License >= 2.1 OR the modified BSD license.
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        see: http://dojotoolkit.org/license for details
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*/
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if(!dojo._hasResource["dojox.image.LightboxNano"]){
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dojo._hasResource["dojox.image.LightboxNano"]=true;
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dojo.provide("dojox.image.LightboxNano");
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dojo.require("dojo.fx");
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(function(d){
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var _1="absolute",_2="visibility",_3=function(){
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var _4=(d.doc.compatMode=="BackCompat")?d.body():d.doc.documentElement,_5=dojo._docScroll();
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return {w:_4.clientWidth,h:_4.clientHeight,l:_5.x,t:_5.y};
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};
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d.declare("dojox.image.LightboxNano",null,{href:"",duration:500,preloadDelay:5000,constructor:function(p,n){
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var _6=this;
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d.mixin(_6,p);
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n=_6._node=dojo.byId(n);
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if(n){
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if(!/a/i.test(n.tagName)){
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var a=d.create("a",{href:_6.href,"class":n.className},n,"after");
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n.className="";
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a.appendChild(n);
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n=a;
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}
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d.style(n,"position","relative");
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_6._createDiv("dojoxEnlarge",n);
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d.setSelectable(n,false);
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_6._onClickEvt=d.connect(n,"onclick",_6,"_load");
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}
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if(_6.href){
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setTimeout(function(){
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(new Image()).src=_6.href;
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_6._hideLoading();
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},_6.preloadDelay);
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}
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},destroy:function(){
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var a=this._connects||[];
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a.push(this._onClickEvt);
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d.forEach(a,d.disconnect);
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d.destroy(this._node);
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},_createDiv:function(_7,_8,_9){
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return d.create("div",{"class":_7,style:{position:_1,display:_9?"":"none"}},_8);
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},_load:function(e){
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var _a=this;
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e&&d.stopEvent(e);
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if(!_a._loading){
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_a._loading=true;
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_a._reset();
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var i=_a._img=d.create("img",{style:{visibility:"hidden",cursor:"pointer",position:_1,top:0,left:0,zIndex:9999999}},d.body()),ln=_a._loadingNode,n=d.query("img",_a._node)[0]||_a._node,a=d.position(n,true),c=d.contentBox(n),b=d._getBorderExtents(n);
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if(ln==null){
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_a._loadingNode=ln=_a._createDiv("dojoxLoading",_a._node,true);
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var l=d.marginBox(ln);
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d.style(ln,{left:parseInt((c.w-l.w)/2)+"px",top:parseInt((c.h-l.h)/2)+"px"});
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}
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c.x=a.x-10+b.l;
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c.y=a.y-10+b.t;
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_a._start=c;
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_a._connects=[d.connect(i,"onload",_a,"_show")];
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i.src=_a.href;
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}
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},_hideLoading:function(){
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if(this._loadingNode){
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d.style(this._loadingNode,"display","none");
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}
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this._loadingNode=false;
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},_show:function(){
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var _b=this,vp=_3(),w=_b._img.width,h=_b._img.height,_c=parseInt((vp.w-20)*0.9),_d=parseInt((vp.h-20)*0.9),dd=d.doc,bg=_b._bg=d.create("div",{style:{backgroundColor:"#000",opacity:0,position:_1,zIndex:9999998}},d.body()),ln=_b._loadingNode;
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if(_b._loadingNode){
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_b._hideLoading();
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}
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d.style(_b._img,{border:"10px solid #fff",visibility:"visible"});
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d.style(_b._node,_2,"hidden");
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_b._loading=false;
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_b._connects=_b._connects.concat([d.connect(dd,"onmousedown",_b,"_hide"),d.connect(dd,"onkeypress",_b,"_key"),d.connect(window,"onresize",_b,"_sizeBg")]);
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if(w>_c){
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h=h*_c/w;
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w=_c;
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}
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if(h>_d){
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w=w*_d/h;
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h=_d;
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}
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_b._end={x:(vp.w-20-w)/2+vp.l,y:(vp.h-20-h)/2+vp.t,w:w,h:h};
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_b._sizeBg();
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d.fx.combine([_b._anim(_b._img,_b._coords(_b._start,_b._end)),_b._anim(bg,{opacity:0.5})]).play();
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},_sizeBg:function(){
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var dd=d.doc.documentElement;
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d.style(this._bg,{top:0,left:0,width:dd.scrollWidth+"px",height:dd.scrollHeight+"px"});
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},_key:function(e){
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d.stopEvent(e);
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this._hide();
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},_coords:function(s,e){
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return {left:{start:s.x,end:e.x},top:{start:s.y,end:e.y},width:{start:s.w,end:e.w},height:{start:s.h,end:e.h}};
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},_hide:function(){
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var _e=this;
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d.forEach(_e._connects,d.disconnect);
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_e._connects=[];
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d.fx.combine([_e._anim(_e._img,_e._coords(_e._end,_e._start),"_reset"),_e._anim(_e._bg,{opacity:0})]).play();
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},_reset:function(){
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d.style(this._node,_2,"visible");
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d.forEach([this._img,this._bg],function(n){
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d.destroy(n);
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n=null;
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});
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this._node.focus();
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},_anim:function(_f,_10,_11){
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return d.animateProperty({node:_f,duration:this.duration,properties:_10,onEnd:_11?d.hitch(this,_11):null});
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},show:function(_12){
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_12=_12||{};
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this.href=_12.href||this.href;
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var n=d.byId(_12.origin),vp=_3();
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this._node=n||d.create("div",{style:{position:_1,width:0,hieght:0,left:(vp.l+(vp.w/2))+"px",top:(vp.t+(vp.h/2))+"px"}},d.body());
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this._load();
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if(!n){
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d.destroy(this._node);
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}
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}});
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})(dojo);
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}