3 * Copyright(c) 2006-2009 Ext JS, LLC
5 * http://www.extjs.com/license
7 var ImageChooser = function(config){
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8 this.config = config;
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11 ImageChooser.prototype = {
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12 // cache data by image name for easy lookup
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15 show : function(el, callback){
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17 this.initTemplates();
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19 this.store = new Ext.data.JsonStore({
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20 url: this.config.url,
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24 {name:'size', type: 'float'},
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25 {name:'lastmod', type:'date', dateFormat:'timestamp'}
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28 'load': {fn:function(){ this.view.select(0); }, scope:this, single:true}
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33 var formatSize = function(data){
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34 if(data.size < 1024) {
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35 return data.size + " bytes";
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37 return (Math.round(((data.size*10) / 1024))/10) + " KB";
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41 var formatData = function(data){
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42 data.shortName = data.name.ellipse(15);
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43 data.sizeString = formatSize(data);
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44 data.dateString = new Date(data.lastmod).format("m/d/Y g:i a");
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45 this.lookup[data.name] = data;
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49 this.view = new Ext.DataView({
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50 tpl: this.thumbTemplate,
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52 overClass:'x-view-over',
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53 itemSelector: 'div.thumb-wrap',
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54 emptyText : '<div style="padding:10px;">No images match the specified filter</div>',
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57 'selectionchange': {fn:this.showDetails, scope:this, buffer:100},
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58 'dblclick' : {fn:this.doCallback, scope:this},
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59 'loadexception' : {fn:this.onLoadException, scope:this},
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60 'beforeselect' : {fn:function(view){
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61 return view.store.getRange().length > 0;
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64 prepareData: formatData.createDelegate(this)
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68 title: 'Choose an Image',
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69 id: 'img-chooser-dlg',
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74 closeAction: 'hide',
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77 id: 'img-chooser-view',
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86 selectOnFocus: true,
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89 'render': {fn:function(){
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90 Ext.getCmp('filter').getEl().on('keyup', function(){
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92 }, this, {buffer:500});
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101 triggerAction: 'all',
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105 displayField: 'desc',
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106 valueField: 'name',
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109 store: new Ext.data.ArrayStore({
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110 fields: ['name', 'desc'],
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111 data : [['name', 'Name'],['size', 'File Size'],['lastmod', 'Last Modified']]
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114 'select': {fn:this.sortImages, scope:this}
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118 id: 'img-detail-panel',
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128 handler: this.doCallback,
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132 handler: function(){ this.win.hide(); },
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136 key: 27, // Esc key
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137 handler: function(){ this.win.hide(); },
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141 Ext.apply(cfg, this.config);
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142 this.win = new Ext.Window(cfg);
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147 this.callback = callback;
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148 this.animateTarget = el;
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151 initTemplates : function(){
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152 this.thumbTemplate = new Ext.XTemplate(
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154 '<div class="thumb-wrap" id="{name}">',
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155 '<div class="thumb"><img src="{url}" title="{name}"></div>',
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156 '<span>{shortName}</span></div>',
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159 this.thumbTemplate.compile();
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161 this.detailsTemplate = new Ext.XTemplate(
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162 '<div class="details">',
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164 '<img src="{url}"><div class="details-info">',
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165 '<b>Image Name:</b>',
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166 '<span>{name}</span>',
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168 '<span>{sizeString}</span>',
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169 '<b>Last Modified:</b>',
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170 '<span>{dateString}</span></div>',
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174 this.detailsTemplate.compile();
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177 showDetails : function(){
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178 var selNode = this.view.getSelectedNodes();
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179 var detailEl = Ext.getCmp('img-detail-panel').body;
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180 if(selNode && selNode.length > 0){
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181 selNode = selNode[0];
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182 Ext.getCmp('ok-btn').enable();
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183 var data = this.lookup[selNode.id];
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185 this.detailsTemplate.overwrite(detailEl, data);
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186 detailEl.slideIn('l', {stopFx:true,duration:.2});
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188 Ext.getCmp('ok-btn').disable();
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189 detailEl.update('');
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193 filter : function(){
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194 var filter = Ext.getCmp('filter');
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195 this.view.store.filter('name', filter.getValue());
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196 this.view.select(0);
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199 sortImages : function(){
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200 var v = Ext.getCmp('sortSelect').getValue();
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201 this.view.store.sort(v, v == 'name' ? 'asc' : 'desc');
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202 this.view.select(0);
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205 reset : function(){
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206 if(this.win.rendered){
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207 Ext.getCmp('filter').reset();
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208 this.view.getEl().dom.scrollTop = 0;
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210 this.view.store.clearFilter();
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211 this.view.select(0);
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214 doCallback : function(){
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215 var selNode = this.view.getSelectedNodes()[0];
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216 var callback = this.callback;
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217 var lookup = this.lookup;
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218 this.win.hide(this.animateTarget, function(){
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219 if(selNode && callback){
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220 var data = lookup[selNode.id];
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226 onLoadException : function(v,o){
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227 this.view.getEl().update('<div style="padding:10px;">Error loading images.</div>');
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231 String.prototype.ellipse = function(maxLength){
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232 if(this.length > maxLength){
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233 return this.substr(0, maxLength-3) + '...';
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