1 | /* |
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2 | * Ext JS Library 0.30 |
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3 | * Copyright(c) 2006-2009, Ext JS, LLC. |
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4 | * licensing@extjs.com |
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5 | * |
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6 | * http://extjs.com/license |
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7 | */ |
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8 | |
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9 | Ext.tree.LocalTreeLoader = Ext.extend(Ext.tree.TreeLoader, { |
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10 | requestData : function(node, callback){ |
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11 | if(this.fireEvent("beforeload", this, node, callback) !== false){ |
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12 | var p = Ext.urlDecode(this.getParams(node)); |
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13 | var response = this.dataFn(node); |
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14 | this.processResponse(response, node, callback); |
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15 | this.fireEvent("load", this, node, response); |
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16 | }else{ |
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17 | // if the load is cancelled, make sure we notify |
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18 | // the node that we are done |
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19 | if(typeof callback == "function"){ |
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20 | callback(); |
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21 | } |
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22 | } |
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23 | }, |
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24 | processResponse : function(o, node, callback){ |
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25 | try { |
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26 | node.beginUpdate(); |
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27 | for(var i = 0, len = o.length; i < len; i++){ |
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28 | var n = this.createNode(o[i]); |
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29 | if(n){ |
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30 | node.appendChild(n); |
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31 | } |
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32 | } |
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33 | node.endUpdate(); |
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34 | if(typeof callback == "function"){ |
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35 | callback(this, node); |
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36 | } |
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37 | }catch(e){ |
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38 | this.handleFailure(response); |
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39 | } |
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40 | }, |
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41 | load : function(node, callback){ |
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42 | if(this.clearOnLoad){ |
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43 | while(node.firstChild){ |
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44 | node.removeChild(node.firstChild); |
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45 | } |
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46 | } |
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47 | if(this.doPreload(node)){ // preloaded json children |
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48 | if(typeof callback == "function"){ |
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49 | callback(); |
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50 | } |
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51 | }else if(this.dataFn||this.fn){ |
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52 | this.requestData(node, callback); |
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53 | } |
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54 | } |
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55 | }); |
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56 | |
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57 | /** |
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58 | * @cfg {air.File} directory |
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59 | * Initial directory to load the FileTree from |
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60 | */ |
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61 | Ext.air.FileTreeLoader = Ext.extend(Ext.tree.LocalTreeLoader, { |
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62 | extensionFilter: false, |
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63 | dataFn: function(currNode) { |
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64 | var currDir; |
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65 | if (currNode.attributes.url) { |
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66 | currDir = this.directory.resolvePath(currNode.attributes.url); |
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67 | } else { |
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68 | currDir = this.directory; |
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69 | } |
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70 | var files = []; |
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71 | var c = currDir.getDirectoryListing(); |
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72 | for (i = 0; i < c.length; i++) { |
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73 | if (c[i].isDirectory || this.extensionFilter === false || this.extensionFilter === c[i].extension) |
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74 | files.push({ |
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75 | text: c[i].name, |
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76 | url: c[i].url, |
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77 | extension: c[i].extension, |
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78 | leaf: !c[i].isDirectory |
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79 | }); |
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80 | } |
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81 | return files; |
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82 | } |
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83 | }); |
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