1 | define(["dojo/_base/kernel", "dojo/_base/declare", "dojo/_base/lang", "dojo/dom", "dojo/_base/array", |
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2 | "dojo/_base/xhr", "dojo/_base/sniff", "dojo/data/util/simpleFetch", |
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3 | "dojo/data/util/filter", "dojox/xml/parser"], |
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4 | function(kernel, declare, lang, dom, array, xhr, has, simpleFetch, filter, xmlParser) { |
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5 | |
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6 | var HtmlTableStore = declare("dojox.data.HtmlTableStore", null, { |
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7 | constructor: function(/*Object*/args){ |
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8 | kernel.deprecated("dojox.data.HtmlTableStore", "Please use dojox.data.HtmlStore"); |
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9 | // summary: |
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10 | // Initializer for the HTML table store. |
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11 | // description: |
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12 | // The HtmlTableStore can be created in one of two ways: a) by parsing an existing |
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13 | // table DOM node on the current page or b) by referencing an external url and giving |
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14 | // the id of the table in that page. The remote url will be parsed as an html page. |
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15 | // |
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16 | // The HTML table should be of the following form: |
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17 | // | <table id="myTable"> |
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18 | // | <thead> |
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19 | // | <tr> |
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20 | // | <th>Attribute1</th> |
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21 | // | <th>Attribute2</th> |
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22 | // | </tr> |
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23 | // | </thead> |
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24 | // | <tbody> |
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25 | // | <tr> |
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26 | // | <td>Value1.1</td> |
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27 | // | <td>Value1.2</td> |
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28 | // | </tr> |
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29 | // | <tr> |
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30 | // | <td>Value2.1</td> |
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31 | // | <td>Value2.2</td> |
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32 | // | </tr> |
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33 | // | </tbody> |
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34 | // | </table> |
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35 | // args: |
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36 | // An anonymous object to initialize properties. It expects the following values: |
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37 | // |
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38 | // - tableId: The id of the HTML table to use. |
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39 | // |
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40 | // OR |
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41 | // |
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42 | // - url: The url of the remote page to load |
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43 | // - tableId: The id of the table element in the remote page |
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44 | |
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45 | if(args.url){ |
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46 | if(!args.tableId) |
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47 | throw new Error("dojo.data.HtmlTableStore: Cannot instantiate using url without an id!"); |
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48 | this.url = args.url; |
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49 | this.tableId = args.tableId; |
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50 | }else{ |
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51 | if(args.tableId){ |
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52 | this._rootNode = dom.byId(args.tableId); |
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53 | this.tableId = this._rootNode.id; |
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54 | }else{ |
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55 | this._rootNode = dom.byId(this.tableId); |
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56 | } |
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57 | this._getHeadings(); |
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58 | for(var i=0; i<this._rootNode.rows.length; i++){ |
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59 | this._rootNode.rows[i].store = this; |
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60 | } |
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61 | } |
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62 | }, |
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63 | |
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64 | // url: [public] string |
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65 | // The URL from which to load an HTML document for data loading |
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66 | url: "", |
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67 | |
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68 | // tableId: [public] string |
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69 | // The id of the table to load as store contents. |
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70 | tableId: "", |
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71 | |
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72 | _getHeadings: function(){ |
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73 | // summary: |
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74 | // Function to load the attribute names from the table header so that the |
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75 | // attributes (cells in a row), can have a reasonable name. |
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76 | this._headings = []; |
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77 | array.forEach(this._rootNode.tHead.rows[0].cells, lang.hitch(this, function(th){ |
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78 | this._headings.push(xmlParser.textContent(th)); |
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79 | })); |
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80 | }, |
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81 | |
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82 | _getAllItems: function(){ |
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83 | // summary: |
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84 | // Function to return all rows in the table as an array of items. |
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85 | var items = []; |
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86 | for(var i=1; i<this._rootNode.rows.length; i++){ |
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87 | items.push(this._rootNode.rows[i]); |
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88 | } |
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89 | return items; //array |
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90 | }, |
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91 | |
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92 | _assertIsItem: function(/* item */ item){ |
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93 | // summary: |
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94 | // This function tests whether the item passed in is indeed an item in the store. |
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95 | // item: |
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96 | // The item to test for being contained by the store. |
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97 | if(!this.isItem(item)){ |
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98 | throw new Error("dojo.data.HtmlTableStore: a function was passed an item argument that was not an item"); |
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99 | } |
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100 | }, |
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101 | |
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102 | _assertIsAttribute: function(/* String */ attribute){ |
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103 | // summary: |
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104 | // This function tests whether the item passed in is indeed a valid 'attribute' like type for the store. |
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105 | // attribute: |
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106 | // The attribute to test for being contained by the store. |
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107 | // returns: |
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108 | // Returns the index (column) that the attribute resides in the row. |
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109 | if(typeof attribute !== "string"){ |
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110 | throw new Error("dojo.data.HtmlTableStore: a function was passed an attribute argument that was not an attribute name string"); |
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111 | } |
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112 | return array.indexOf(this._headings, attribute); //int |
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113 | }, |
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114 | |
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115 | /*************************************** |
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116 | dojo/data/api/Read API |
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117 | ***************************************/ |
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118 | |
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119 | getValue: function( /* item */ item, |
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120 | /* attribute-name-string */ attribute, |
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121 | /* value? */ defaultValue){ |
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122 | // summary: |
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123 | // See dojo/data/api/Read.getValue() |
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124 | var values = this.getValues(item, attribute); |
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125 | return (values.length > 0)?values[0]:defaultValue; // Object|Number|Boolean |
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126 | }, |
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127 | |
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128 | getValues: function(/* item */ item, |
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129 | /* attribute-name-string */ attribute){ |
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130 | // summary: |
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131 | // See dojo/data/api/Read.getValues() |
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132 | |
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133 | this._assertIsItem(item); |
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134 | var index = this._assertIsAttribute(attribute); |
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135 | |
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136 | if(index>-1){ |
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137 | return [xmlParser.textContent(item.cells[index])] ; |
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138 | } |
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139 | return []; //Array |
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140 | }, |
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141 | |
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142 | getAttributes: function(/* item */ item){ |
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143 | // summary: |
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144 | // See dojo/data/api/Read.getAttributes() |
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145 | this._assertIsItem(item); |
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146 | var attributes = []; |
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147 | for(var i=0; i<this._headings.length; i++){ |
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148 | if(this.hasAttribute(item, this._headings[i])) |
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149 | attributes.push(this._headings[i]); |
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150 | } |
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151 | return attributes; //Array |
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152 | }, |
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153 | |
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154 | hasAttribute: function( /* item */ item, |
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155 | /* attribute-name-string */ attribute){ |
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156 | // summary: |
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157 | // See dojo/data/api/Read.hasAttribute() |
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158 | return this.getValues(item, attribute).length > 0; |
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159 | }, |
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160 | |
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161 | containsValue: function(/* item */ item, |
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162 | /* attribute-name-string */ attribute, |
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163 | /* anything */ value){ |
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164 | // summary: |
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165 | // See dojo/data/api/Read.containsValue() |
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166 | var regexp = undefined; |
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167 | if(typeof value === "string"){ |
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168 | regexp = filter.patternToRegExp(value, false); |
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169 | } |
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170 | return this._containsValue(item, attribute, value, regexp); //boolean. |
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171 | }, |
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172 | |
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173 | _containsValue: function( /* item */ item, |
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174 | /* attribute-name-string */ attribute, |
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175 | /* anything */ value, |
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176 | /* RegExp?*/ regexp){ |
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177 | // summary: |
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178 | // Internal function for looking at the values contained by the item. |
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179 | // description: |
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180 | // Internal function for looking at the values contained by the item. This |
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181 | // function allows for denoting if the comparison should be case sensitive for |
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182 | // strings or not (for handling filtering cases where string case should not matter) |
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183 | // item: |
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184 | // The data item to examine for attribute values. |
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185 | // attribute: |
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186 | // The attribute to inspect. |
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187 | // value: |
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188 | // The value to match. |
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189 | // regexp: |
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190 | // Optional regular expression generated off value if value was of string type to handle wildcarding. |
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191 | // If present and attribute values are string, then it can be used for comparison instead of 'value' |
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192 | var values = this.getValues(item, attribute); |
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193 | for(var i = 0; i < values.length; ++i){ |
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194 | var possibleValue = values[i]; |
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195 | if(typeof possibleValue === "string" && regexp){ |
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196 | return (possibleValue.match(regexp) !== null); |
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197 | }else{ |
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198 | //Non-string matching. |
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199 | if(value === possibleValue){ |
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200 | return true; // Boolean |
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201 | } |
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202 | } |
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203 | } |
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204 | return false; // Boolean |
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205 | }, |
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206 | |
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207 | isItem: function(/* anything */ something){ |
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208 | // summary: |
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209 | // See dojo/data/api/Read.isItem() |
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210 | if(something && something.store && something.store === this){ |
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211 | return true; //boolean |
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212 | } |
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213 | return false; //boolean |
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214 | }, |
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215 | |
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216 | isItemLoaded: function(/* anything */ something){ |
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217 | // summary: |
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218 | // See dojo/data/api/Read.isItemLoaded() |
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219 | return this.isItem(something); |
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220 | }, |
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221 | |
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222 | loadItem: function(/* Object */ keywordArgs){ |
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223 | // summary: |
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224 | // See dojo/data/api/Read.loadItem() |
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225 | this._assertIsItem(keywordArgs.item); |
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226 | }, |
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227 | |
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228 | _fetchItems: function(request, fetchHandler, errorHandler){ |
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229 | // summary: |
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230 | // Fetch items (XML elements) that match to a query |
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231 | // description: |
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232 | // If '_fetchUrl' is specified, it is used to load an XML document |
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233 | // with a query string. |
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234 | // Otherwise and if 'url' is specified, the XML document is |
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235 | // loaded and list XML elements that match to a query (set of element |
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236 | // names and their text attribute values that the items to contain). |
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237 | // A wildcard, "*" can be used to query values to match all |
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238 | // occurrences. |
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239 | // If '_rootItem' is specified, it is used to fetch items. |
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240 | // request: |
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241 | // A request object |
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242 | // fetchHandler: |
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243 | // A function to call for fetched items |
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244 | // errorHandler: |
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245 | // A function to call on error |
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246 | |
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247 | if(this._rootNode){ |
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248 | this._finishFetchItems(request, fetchHandler, errorHandler); |
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249 | }else{ |
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250 | if(!this.url){ |
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251 | this._rootNode = dom.byId(this.tableId); |
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252 | this._getHeadings(); |
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253 | for(var i=0; i<this._rootNode.rows.length; i++){ |
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254 | this._rootNode.rows[i].store = this; |
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255 | } |
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256 | }else{ |
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257 | var getArgs = { |
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258 | url: this.url, |
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259 | handleAs: "text" |
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260 | }; |
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261 | var self = this; |
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262 | var getHandler = xhr.get(getArgs); |
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263 | getHandler.addCallback(function(data){ |
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264 | var findNode = function(node, id){ |
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265 | if(node.id == id){ |
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266 | return node; //object |
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267 | } |
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268 | if(node.childNodes){ |
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269 | for(var i=0; i<node.childNodes.length; i++){ |
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270 | var returnNode = findNode(node.childNodes[i], id); |
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271 | if(returnNode){ |
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272 | return returnNode; //object |
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273 | } |
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274 | } |
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275 | } |
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276 | return null; //null |
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277 | } |
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278 | |
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279 | var d = document.createElement("div"); |
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280 | d.innerHTML = data; |
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281 | self._rootNode = findNode(d, self.tableId); |
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282 | self._getHeadings.call(self); |
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283 | for(var i=0; i<self._rootNode.rows.length; i++){ |
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284 | self._rootNode.rows[i].store = self; |
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285 | } |
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286 | self._finishFetchItems(request, fetchHandler, errorHandler); |
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287 | }); |
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288 | getHandler.addErrback(function(error){ |
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289 | errorHandler(error, request); |
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290 | }); |
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291 | } |
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292 | } |
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293 | }, |
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294 | |
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295 | _finishFetchItems: function(request, fetchHandler, errorHandler){ |
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296 | // summary: |
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297 | // Internal function for processing the passed in request and locating the requested items. |
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298 | var items = null; |
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299 | var arrayOfAllItems = this._getAllItems(); |
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300 | if(request.query){ |
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301 | var ignoreCase = request.queryOptions ? request.queryOptions.ignoreCase : false; |
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302 | items = []; |
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303 | |
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304 | //See if there are any string values that can be regexp parsed first to avoid multiple regexp gens on the |
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305 | //same value for each item examined. Much more efficient. |
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306 | var regexpList = {}; |
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307 | var value; |
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308 | var key; |
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309 | for(key in request.query){ |
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310 | value = request.query[key]+''; |
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311 | if(typeof value === "string"){ |
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312 | regexpList[key] = filter.patternToRegExp(value, ignoreCase); |
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313 | } |
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314 | } |
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315 | |
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316 | for(var i = 0; i < arrayOfAllItems.length; ++i){ |
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317 | var match = true; |
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318 | var candidateItem = arrayOfAllItems[i]; |
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319 | for(key in request.query){ |
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320 | value = request.query[key]+''; |
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321 | if(!this._containsValue(candidateItem, key, value, regexpList[key])){ |
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322 | match = false; |
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323 | } |
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324 | } |
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325 | if(match){ |
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326 | items.push(candidateItem); |
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327 | } |
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328 | } |
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329 | fetchHandler(items, request); |
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330 | }else{ |
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331 | // We want a copy to pass back in case the parent wishes to sort the array. We shouldn't allow resort |
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332 | // of the internal list so that multiple callers can get listsand sort without affecting each other. |
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333 | if(arrayOfAllItems.length> 0){ |
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334 | items = arrayOfAllItems.slice(0,arrayOfAllItems.length); |
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335 | } |
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336 | fetchHandler(items, request); |
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337 | } |
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338 | }, |
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339 | |
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340 | getFeatures: function(){ |
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341 | // summary: |
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342 | // See dojo/data/api/Read.getFeatures() |
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343 | return { |
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344 | 'dojo.data.api.Read': true, |
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345 | 'dojo.data.api.Identity': true |
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346 | }; |
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347 | }, |
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348 | |
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349 | close: function(/*dojo/data/api/Request|Object?*/ request){ |
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350 | // summary: |
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351 | // See dojo/data/api/Read.close() |
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352 | |
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353 | // nothing to do here! |
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354 | }, |
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355 | |
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356 | getLabel: function(/* item */ item){ |
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357 | // summary: |
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358 | // See dojo/data/api/Read.getLabel() |
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359 | if(this.isItem(item)) |
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360 | return "Table Row #" + this.getIdentity(item); |
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361 | return undefined; |
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362 | }, |
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363 | |
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364 | getLabelAttributes: function(/* item */ item){ |
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365 | // summary: |
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366 | // See dojo/data/api/Read.getLabelAttributes() |
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367 | return null; |
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368 | }, |
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369 | |
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370 | /*************************************** |
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371 | dojo/data/api/Identity API |
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372 | ***************************************/ |
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373 | |
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374 | getIdentity: function(/* item */ item){ |
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375 | // summary: |
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376 | // See dojo/data/api/Identity.getIdentity() |
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377 | this._assertIsItem(item); |
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378 | //Opera doesn't support the sectionRowIndex, |
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379 | //So, have to call the indexOf to locate it. |
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380 | //Blah. |
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381 | if(!has("opera")){ |
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382 | return item.sectionRowIndex; // int |
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383 | }else{ |
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384 | return (array.indexOf(this._rootNode.rows, item) - 1) // int |
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385 | } |
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386 | }, |
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387 | |
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388 | getIdentityAttributes: function(/* item */ item){ |
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389 | // summary: |
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390 | // See dojo/data/api/Identity.getIdentityAttributes() |
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391 | |
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392 | //Identity isn't taken from a public attribute. |
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393 | return null; |
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394 | }, |
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395 | |
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396 | fetchItemByIdentity: function(keywordArgs){ |
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397 | // summary: |
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398 | // See dojo/data/api/Identity.fetchItemByIdentity() |
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399 | var identity = keywordArgs.identity; |
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400 | var self = this; |
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401 | var item = null; |
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402 | var scope = null; |
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403 | |
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404 | if(!this._rootNode){ |
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405 | if(!this.url){ |
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406 | this._rootNode = dom.byId(this.tableId); |
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407 | this._getHeadings(); |
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408 | for(var i=0; i<this._rootNode.rows.length; i++){ |
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409 | this._rootNode.rows[i].store = this; |
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410 | } |
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411 | item = this._rootNode.rows[identity+1]; |
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412 | if(keywordArgs.onItem){ |
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413 | scope = keywordArgs.scope?keywordArgs.scope:kernel.global; |
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414 | keywordArgs.onItem.call(scope, item); |
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415 | } |
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416 | |
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417 | }else{ |
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418 | var getArgs = { |
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419 | url: this.url, |
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420 | handleAs: "text" |
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421 | }; |
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422 | var getHandler = xhr.get(getArgs); |
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423 | getHandler.addCallback(function(data){ |
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424 | var findNode = function(node, id){ |
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425 | if(node.id == id){ |
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426 | return node; //object |
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427 | } |
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428 | if(node.childNodes){ |
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429 | for(var i=0; i<node.childNodes.length; i++){ |
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430 | var returnNode = findNode(node.childNodes[i], id); |
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431 | if(returnNode){ |
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432 | return returnNode; //object |
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433 | } |
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434 | } |
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435 | } |
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436 | return null; //null |
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437 | } |
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438 | var d = document.createElement("div"); |
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439 | d.innerHTML = data; |
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440 | self._rootNode = findNode(d, self.tableId); |
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441 | self._getHeadings.call(self); |
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442 | for(var i=0; i<self._rootNode.rows.length; i++){ |
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443 | self._rootNode.rows[i].store = self; |
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444 | } |
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445 | item = self._rootNode.rows[identity+1]; |
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446 | if(keywordArgs.onItem){ |
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447 | scope = keywordArgs.scope?keywordArgs.scope:kernel.global; |
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448 | keywordArgs.onItem.call(scope, item); |
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449 | } |
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450 | }); |
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451 | getHandler.addErrback(function(error){ |
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452 | if(keywordArgs.onError){ |
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453 | scope = keywordArgs.scope?keywordArgs.scope:kernel.global; |
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454 | keywordArgs.onError.call(scope, error); |
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455 | |
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456 | } |
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457 | }); |
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458 | } |
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459 | }else{ |
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460 | if(this._rootNode.rows[identity+1]){ |
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461 | item = this._rootNode.rows[identity+1]; |
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462 | if(keywordArgs.onItem){ |
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463 | scope = keywordArgs.scope?keywordArgs.scope:kernel.global; |
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464 | keywordArgs.onItem.call(scope, item); |
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465 | } |
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466 | } |
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467 | } |
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468 | } |
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469 | }); |
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470 | lang.extend(HtmlTableStore,simpleFetch); |
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471 | |
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472 | return HtmlTableStore; |
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473 | }); |
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