root / trunk / web / dojo / dojox / mobile / app / ImageThumbView.js @ 11
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1 | 9 | andrej.cim | /*
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2 | Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
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3 | Available via Academic Free License >= 2.1 OR the modified BSD license.
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4 | see: http://dojotoolkit.org/license for details
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5 | */
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6 | |||
7 | |||
8 | if(!dojo._hasResource["dojox.mobile.app.ImageThumbView"]){ |
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9 | dojo._hasResource["dojox.mobile.app.ImageThumbView"]=true; |
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10 | dojo.provide("dojox.mobile.app.ImageThumbView");
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11 | dojo.experimental("dojox.mobile.app.ImageThumbView");
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12 | dojo.require("dijit._Widget");
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13 | dojo.require("dojo.string");
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14 | dojo.declare("dojox.mobile.app.ImageThumbView",dijit._Widget,{items:null,urlParam:"url",itemTemplate:"<div class=\"mblThumbInner\">"+"<div class=\"mblThumbOverlay\"></div>"+"<div class=\"mblThumbMask\">"+"<div class=\"mblThumbSrc\" style=\"background-image:url(${url})\"></div>"+"</div>"+"</div>",minPadding:5,maxPerRow:3,baseClass:"mblImageThumbView",selectedIndex:-1,cache:null,postCreate:function(){ |
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15 | this.inherited(arguments); |
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16 | var _1=this; |
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17 | var _2="mblThumbHover"; |
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18 | this.addThumb=dojo.hitch(this,this.addThumb); |
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19 | this.handleImgLoad=dojo.hitch(this,this.handleImgLoad); |
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20 | this._onLoadImages={};
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21 | this.cache=[];
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22 | this.visibleImages=[];
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23 | this.connect(this.domNode,"onclick",function(_3){ |
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24 | var _4=_1._getItemNodeFromEvent(_3);
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25 | if(_4){
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26 | _1.onSelect(_4._item,_4._index,_1.items); |
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27 | dojo.query(".selected",this.domNode).removeClass("selected"); |
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28 | dojo.addClass(_4,"selected");
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29 | } |
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30 | }); |
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31 | this.resize();
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32 | this.render();
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33 | },onSelect:function(_5,_6,_7){ |
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34 | },_setItemsAttr:function(_8){ |
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35 | this.items=_8||[];
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36 | this.render();
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37 | },_getItemNode:function(_9){ |
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38 | while(_9&&!dojo.hasClass(_9,"mblThumb")&&_9!=this.domNode){ |
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39 | _9=_9.parentNode; |
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40 | } |
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41 | return (_9==this.domNode)?null:_9; |
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42 | },_getItemNodeFromEvent:function(_a){ |
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43 | if(_a.touches&&_a.touches.length>0){ |
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44 | _a=_a.touches[0];
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45 | } |
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46 | return this._getItemNode(_a.target); |
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47 | },resize:function(){ |
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48 | this._thumbSize=null; |
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49 | this._size=dojo.marginBox(this.domNode); |
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50 | this.render();
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51 | },render:function(){ |
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52 | var i;
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53 | var _b;
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54 | var _c;
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55 | var _d;
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56 | while(this.visibleImages.length>0){ |
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57 | _d=this.visibleImages.pop();
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58 | this.cache.push(_d);
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59 | dojo.addClass(_d,"hidden");
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60 | _d._cached=true;
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61 | } |
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62 | if(!this.items||this.items.length==0){ |
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63 | return;
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64 | } |
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65 | for(i=0;i<this.items.length;i++){ |
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66 | _c=this.items[i];
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67 | _b=(dojo.isString(_c)?_c:_c[this.urlParam]);
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68 | this.addThumb(_c,_b,i);
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69 | } |
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70 | if(!this._thumbSize){ |
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71 | return;
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72 | } |
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73 | var _e=0; |
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74 | var _f=-1; |
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75 | var _10=this._thumbSize.w+(this.padding*2); |
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76 | var _11=this._thumbSize.h+(this.padding*2); |
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77 | var _12=this.thumbNodes=dojo.query(".mblThumb",this.domNode); |
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78 | var pos=0; |
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79 | for(i=0;i<_12.length;i++){ |
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80 | if(_12[i]._cached){
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81 | continue;
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82 | } |
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83 | if(pos%this.maxPerRow==0){ |
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84 | _f++; |
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85 | } |
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86 | _e=pos%this.maxPerRow;
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87 | this.place(_12[i],(_e*_10)+this.padding,(_f*_11)+this.padding); |
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88 | if(!_12[i]._loading){
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89 | dojo.removeClass(_12[i],"hidden");
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90 | } |
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91 | if(pos==this.selectedIndex){ |
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92 | dojo[pos==this.selectedIndex?"addClass":"removeClass"](_12[i],"selected"); |
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93 | } |
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94 | pos++; |
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95 | } |
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96 | var _13=Math.ceil(pos/this.maxPerRow); |
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97 | if(this._numRows!=_13){ |
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98 | this._numRows=_13;
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99 | dojo.style(this.domNode,"height",(_13*(this._thumbSize.h+this.padding*2))+"px"); |
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100 | } |
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101 | },addThumb:function(_14,url,_15){ |
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102 | var _16;
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103 | if(this.cache.length>0){ |
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104 | _16=this.cache.pop();
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105 | }else{
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106 | _16=dojo.create("div",{"class":"mblThumb hidden",innerHTML:dojo.string.substitute(this.itemTemplate,{url:url},null,this)},this.domNode); |
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107 | } |
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108 | dojo.addClass(_16,"hidden");
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109 | var _17=dojo.create("img",{}); |
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110 | _17._thumbDiv=_16; |
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111 | _17._conn=dojo.connect(_17,"onload",this.handleImgLoad); |
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112 | _17._url=url; |
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113 | _16._loading=true;
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114 | this._onLoadImages[url]=_17;
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115 | _17.src=url; |
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116 | this.visibleImages.push(_16);
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117 | _16._index=_15; |
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118 | _16._item=_14; |
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119 | _16._url=url; |
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120 | _16._cached=false;
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121 | if(!this._thumbSize){ |
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122 | this._thumbSize=dojo.marginBox(_16);
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123 | this.calcPadding();
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124 | } |
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125 | },handleImgLoad:function(_18){ |
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126 | var img=_18.target;
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127 | dojo.disconnect(img._conn); |
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128 | dojo.removeClass(img._thumbDiv,"hidden");
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129 | img._thumbDiv._loading=false;
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130 | dojo.query(".mblThumbSrc",img._thumbDiv).style("backgroundImage","url("+img._url+")"); |
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131 | delete this._onLoadImages[img._url]; |
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132 | },calcPadding:function(){ |
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133 | var _19=this._size.w; |
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134 | var _1a=this._thumbSize.w; |
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135 | var _1b=_1a+this.minPadding; |
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136 | this.maxPerRow=Math.floor(_19/_1b);
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137 | this.padding=(_19-(_1a*this.maxPerRow))/(this.maxPerRow*2); |
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138 | },place:function(_1c,x,y){ |
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139 | dojo.style(_1c,{"-webkit-transform":"translate("+x+"px,"+y+"px)"}); |
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140 | }}); |
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141 | } |