1 | /** |
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2 | * Copyright (c) 2008-2009 The Open Source Geospatial Foundation |
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3 | * |
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4 | * Published under the BSD license. |
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5 | * See http://svn.geoext.org/core/trunk/geoext/license.txt for the full text |
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6 | * of the license. |
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7 | */ |
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8 | |
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9 | Ext.namespace("GeoExt.plugins"); |
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10 | |
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11 | /** api: (define) |
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12 | * module = GeoExt.plugins |
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13 | * class = TreeNodeComponent |
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14 | */ |
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15 | |
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16 | /** api: constructor |
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17 | * A plugin to create tree node UIs that can have an Ext.Component below the |
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18 | * node's title. Can be plugged into any ``Ext.tree.TreePanel`` and will be |
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19 | * applied to nodes that are extended with the |
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20 | * :class:`GeoExt.Tree.TreeNodeUIEventMixin`. |
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21 | * |
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22 | * If a node is configured with a ``component`` attribute, it will be rendered |
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23 | * with the component in addition to icon and title. |
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24 | */ |
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25 | |
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26 | /** api: example |
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27 | * Sample code to create a tree with a node that has a component: |
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28 | * |
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29 | * .. code-block:: javascript |
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30 | * |
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31 | * var uiClass = Ext.extend( |
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32 | * Ext.tree.TreeNodeUI, |
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33 | * GeoExt.tree.TreeNodeUIEventMixin |
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34 | * ); |
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35 | * var tree = new Ext.tree.TreePanel({ |
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36 | * plugins: [ |
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37 | * new GeoExt.plugins.TreeNodeRadioButton({ |
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38 | * listeners: { |
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39 | * "radiochange": function(node) { |
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40 | * alert(node.text + "'s radio button was clicked."); |
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41 | * } |
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42 | * } |
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43 | * }) |
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44 | * ], |
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45 | * root: { |
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46 | * nodeType: "node", |
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47 | * uiProvider: uiClass, |
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48 | * text: "My Node", |
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49 | * component: { |
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50 | * xtype: "box", |
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51 | * autoEl: { |
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52 | * tag: "img", |
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53 | * src: "/images/my-image.jpg" |
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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 | * |
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59 | * Sample code to create a layer node UI with a radio button: |
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60 | * |
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61 | * .. code-block:: javascript |
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62 | * |
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63 | * var uiClass = Ext.extend( |
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64 | * GeoExt.tree.LayerNodeUI, |
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65 | * new GeoExt.tree.TreeNodeUIEventMixin |
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66 | * ); |
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67 | */ |
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68 | |
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69 | GeoExt.plugins.TreeNodeComponent = Ext.extend(Ext.util.Observable, { |
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70 | |
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71 | /** private: method[constructor] |
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72 | * :param config: ``Object`` |
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73 | */ |
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74 | constructor: function(config) { |
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75 | Ext.apply(this.initialConfig, Ext.apply({}, config)); |
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76 | Ext.apply(this, config); |
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77 | |
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78 | GeoExt.plugins.TreeNodeComponent.superclass.constructor.apply(this, arguments); |
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79 | }, |
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80 | |
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81 | /** private: method[init] |
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82 | * :param tree: ``Ext.tree.TreePanel`` The tree. |
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83 | */ |
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84 | init: function(tree) { |
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85 | tree.on({ |
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86 | "rendernode": this.onRenderNode, |
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87 | scope: this |
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88 | }); |
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89 | }, |
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90 | |
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91 | /** private: method[onRenderNode] |
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92 | * :param node: ``Ext.tree.TreeNode`` |
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93 | */ |
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94 | onRenderNode: function(node) { |
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95 | var rendered = node.rendered; |
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96 | var attr = node.attributes; |
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97 | var component = attr.component || this.component; |
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98 | if(!rendered && component) { |
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99 | var elt = Ext.DomHelper.append(node.ui.elNode, [ |
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100 | {"tag": "div"} |
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101 | ]); |
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102 | if(typeof component == "function") { |
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103 | component = component(node, elt); |
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104 | } else if (typeof component == "object" && |
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105 | typeof component.fn == "function") { |
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106 | component = component.fn.apply( |
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107 | component.scope, [node, elt] |
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108 | ); |
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109 | } |
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110 | if(typeof component == "object" && |
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111 | typeof component.xtype == "string") { |
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112 | component = Ext.ComponentMgr.create(component); |
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113 | } |
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114 | if(component instanceof Ext.Component) { |
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115 | component.render(elt); |
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116 | node.component = component; |
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117 | } |
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118 | } |
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119 | }, |
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120 | |
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121 | /** private: method[destroy] |
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122 | */ |
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123 | destroy: function() { |
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124 | tree.un("rendernode", this.onRenderNode, this); |
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125 | } |
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126 | |
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127 | }); |
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128 | |
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129 | /** api: ptype = gx_TreeNodeComponent */ |
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130 | Ext.preg && Ext.preg("gx_treenodecomponent", GeoExt.plugins.TreeNodeComponent); |
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