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 | /* |
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10 | * @include GeoExt/widgets/form.js |
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11 | */ |
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12 | |
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13 | Ext.namespace("GeoExt.plugins"); |
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14 | |
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15 | /** api: (define) |
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16 | * module = GeoExt.plugins |
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17 | * class = AttributeForm |
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18 | */ |
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19 | |
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20 | /** api: example |
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21 | * Sample code showing how to use an Ext form panel as a feature |
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22 | * attribute form (for editing features for example). |
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23 | * |
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24 | * .. code-block:: javascript |
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25 | * |
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26 | * var formPanel = new Ext.form.FormPanel({ |
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27 | * autoScroll: true, |
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28 | * height: 300, |
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29 | * width: 350, |
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30 | * defaults: { |
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31 | * maxLengthText: "too long", |
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32 | * minLengthText: "too short" |
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33 | * } |
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34 | * plugins: [ |
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35 | * new GeoExt.plugins.AttributeForm({ |
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36 | * attributeStore: new GeoExt.data.AttributeStore({ |
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37 | * url: "http://some.wfs", |
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38 | * baseParams: { |
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39 | * "SERVICE": "WFS", |
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40 | * "VERSION": "1.1.0", |
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41 | * "REQUEST": "DescribeFeatureType", |
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42 | * "TYPENAME": "the_typename" |
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43 | * } |
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44 | * }) |
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45 | * }) |
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46 | * ] |
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47 | * }); |
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48 | */ |
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49 | |
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50 | /** api: constructor |
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51 | * .. class:: AttributeForm |
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52 | * |
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53 | * This plugin allows creating form items from attribute records |
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54 | * and fill a form panel with these items. |
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55 | */ |
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56 | |
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57 | GeoExt.plugins.AttributeForm = function(config) { |
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58 | Ext.apply(this, config); |
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59 | }; |
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60 | |
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61 | GeoExt.plugins.AttributeForm.prototype = { |
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62 | |
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63 | /** api: config[attributeStore] |
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64 | * ``Ext.data.Store`` The attribute store to bind to this plugin. |
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65 | * It can be any Ext store configured with a |
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66 | * :class:`GeoExt.data.AttributeReader`. If set form items |
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67 | * will be created from the attribute records in the form. In |
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68 | * most cases this store will be a :class:`GeoExt.data.AttributeStore`. |
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69 | */ |
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70 | /** private: property[attributeStore] |
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71 | * ``Ext.data.Store`` The attribute store. |
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72 | */ |
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73 | attributeStore: null, |
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74 | |
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75 | /** private: property[formPanel] |
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76 | * ``Ext.form.FormPanel`` This form panel. |
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77 | */ |
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78 | formPanel: null, |
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79 | |
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80 | /** private: method[init] |
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81 | * :param formPanel: class:`Ext.form.FormPanel` |
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82 | * |
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83 | * Initializes the plugin. |
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84 | */ |
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85 | init: function(formPanel) { |
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86 | this.formPanel = formPanel; |
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87 | if(this.attributeStore instanceof Ext.data.Store) { |
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88 | this.fillForm(); |
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89 | this.bind(this.attributeStore); |
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90 | } |
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91 | formPanel.on("destroy", this.onFormDestroy, this); |
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92 | }, |
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93 | |
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94 | /** private: method[bind] |
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95 | * :param store: ``Ext.data.Store`` The attribute store this form panel |
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96 | * is to be bound to. |
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97 | * |
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98 | * Bind the panel to the attribute store passed as a parameter. |
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99 | */ |
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100 | bind: function(store) { |
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101 | this.unbind(); |
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102 | store.on({ |
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103 | "load": this.onLoad, |
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104 | scope: this |
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105 | }); |
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106 | this.attributeStore = store; |
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107 | }, |
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108 | |
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109 | /** private: method[unbind] |
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110 | * |
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111 | * Unbind the panel from the attribute store it is currently bound |
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112 | * to, if any. |
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113 | */ |
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114 | unbind: function() { |
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115 | if(this.attributeStore) { |
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116 | this.attributeStore.un("load", this.onLoad, this); |
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117 | } |
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118 | }, |
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119 | |
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120 | /** private: method[onLoad] |
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121 | * |
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122 | * Callback called when the store is loaded. |
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123 | */ |
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124 | onLoad: function() { |
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125 | if(this.formPanel.items) { |
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126 | this.formPanel.removeAll(); |
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127 | } |
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128 | this.fillForm(); |
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129 | }, |
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130 | |
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131 | /** private: method[fillForm] |
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132 | * |
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133 | * For each attribute record in the attribute store create |
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134 | * a form field and add it to the form. |
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135 | */ |
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136 | fillForm: function() { |
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137 | this.attributeStore.each(function(record) { |
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138 | var field = GeoExt.form.recordToField(record); |
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139 | if(field) { |
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140 | this.formPanel.add(field); |
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141 | } |
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142 | }, this); |
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143 | this.formPanel.doLayout(); |
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144 | }, |
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145 | |
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146 | /** private: method[onFormDestroy] |
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147 | */ |
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148 | onFormDestroy: function() { |
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149 | this.unbind(); |
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150 | } |
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151 | }; |
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152 | |
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153 | /** api: ptype = gx_attributeform */ |
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154 | Ext.preg("gx_attributeform", GeoExt.plugins.AttributeForm); |
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