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23 > ComplexAttribute.js (source view) |
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50 <div class="highlight" ><pre> <span class="c">/**</span> |
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51 <span class="c"> * Adds support for attribute providers to handle complex attributes in the constructor</span> |
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52 <span class="c"> *</span> |
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53 <span class="c"> * @module attribute</span> |
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54 <span class="c"> * @submodule attribute-complex</span> |
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55 <span class="c"> * @for Attribute</span> |
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56 <span class="c"> */</span> |
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57 |
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58 <span class="k">var</span> <span class="nx">O</span> <span class="o">=</span> <span class="nx">Y</span><span class="o">.</span><span class="nb">Object</span><span class="o">,</span> |
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59 <span class="nx">DOT</span> <span class="o">=</span> <span class="s2">"."</span><span class="o">;</span> |
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60 |
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61 <span class="nx">Y</span><span class="o">.</span><span class="nx">Attribute</span><span class="o">.</span><span class="nx">Complex</span> <span class="o">=</span> <span class="k">function</span><span class="o">()</span> <span class="o">{};</span> |
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62 <span class="nx">Y</span><span class="o">.</span><span class="nx">Attribute</span><span class="o">.</span><span class="nx">Complex</span><span class="o">.</span><span class="nx">prototype</span> <span class="o">=</span> <span class="o">{</span> |
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63 |
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64 <span class="c">/**</span> |
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65 <span class="c"> * Utility method to split out simple attribute name/value pairs ("x") </span> |
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66 <span class="c"> * from complex attribute name/value pairs ("x.y.z"), so that complex</span> |
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67 <span class="c"> * attributes can be keyed by the top level attribute name.</span> |
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68 <span class="c"> *</span> |
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69 <span class="c"> * @method _normAttrVals</span> |
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70 <span class="c"> * @param {Object} valueHash An object with attribute name/value pairs</span> |
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71 <span class="c"> *</span> |
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72 <span class="c"> * @return {Object} An object literal with 2 properties - "simple" and "complex",</span> |
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73 <span class="c"> * containing simple and complex attribute values respectively keyed </span> |
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74 <span class="c"> * by the top level attribute name, or null, if valueHash is falsey.</span> |
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75 <span class="c"> *</span> |
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76 <span class="c"> * @private</span> |
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77 <span class="c"> */</span> |
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78 <span class="nx">_normAttrVals</span> <span class="o">:</span> <span class="k">function</span><span class="o">(</span><span class="nx">valueHash</span><span class="o">)</span> <span class="o">{</span> |
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79 <span class="k">var</span> <span class="nx">vals</span> <span class="o">=</span> <span class="o">{},</span> |
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80 <span class="nx">subvals</span> <span class="o">=</span> <span class="o">{},</span> |
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81 <span class="nx">path</span><span class="o">,</span> |
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82 <span class="nx">attr</span><span class="o">,</span> |
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83 <span class="nx">v</span><span class="o">,</span> <span class="nx">k</span><span class="o">;</span> |
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84 |
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85 <span class="k">if</span> <span class="o">(</span><span class="nx">valueHash</span><span class="o">)</span> <span class="o">{</span> |
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86 <span class="k">for</span> <span class="o">(</span><span class="nx">k</span> <span class="k">in</span> <span class="nx">valueHash</span><span class="o">)</span> <span class="o">{</span> |
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87 <span class="k">if</span> <span class="o">(</span><span class="nx">valueHash</span><span class="o">.</span><span class="nx">hasOwnProperty</span><span class="o">(</span><span class="nx">k</span><span class="o">))</span> <span class="o">{</span> |
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88 <span class="k">if</span> <span class="o">(</span><span class="nx">k</span><span class="o">.</span><span class="nx">indexOf</span><span class="o">(</span><span class="nx">DOT</span><span class="o">)</span> <span class="o">!==</span> <span class="o">-</span><span class="m">1</span><span class="o">)</span> <span class="o">{</span> |
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89 <span class="nx">path</span> <span class="o">=</span> <span class="nx">k</span><span class="o">.</span><span class="nx">split</span><span class="o">(</span><span class="nx">DOT</span><span class="o">);</span> |
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90 <span class="nx">attr</span> <span class="o">=</span> <span class="nx">path</span><span class="o">.</span><span class="nx">shift</span><span class="o">();</span> |
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91 <span class="nx">v</span> <span class="o">=</span> <span class="nx">subvals</span><span class="o">[</span><span class="nx">attr</span><span class="o">]</span> <span class="o">=</span> <span class="nx">subvals</span><span class="o">[</span><span class="nx">attr</span><span class="o">]</span> <span class="o">||</span> <span class="o">[];</span> |
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92 <span class="nx">v</span><span class="o">[</span><span class="nx">v</span><span class="o">.</span><span class="nx">length</span><span class="o">]</span> <span class="o">=</span> <span class="o">{</span> |
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93 <span class="nx">path</span> <span class="o">:</span> <span class="nx">path</span><span class="o">,</span> |
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94 <span class="nx">value</span><span class="o">:</span> <span class="nx">valueHash</span><span class="o">[</span><span class="nx">k</span><span class="o">]</span> |
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95 <span class="o">};</span> |
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96 <span class="o">}</span> <span class="k">else</span> <span class="o">{</span> |
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97 <span class="nx">vals</span><span class="o">[</span><span class="nx">k</span><span class="o">]</span> <span class="o">=</span> <span class="nx">valueHash</span><span class="o">[</span><span class="nx">k</span><span class="o">];</span> |
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98 <span class="o">}</span> |
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99 <span class="o">}</span> |
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100 <span class="o">}</span> |
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101 <span class="k">return</span> <span class="o">{</span> <span class="nx">simple</span><span class="o">:</span><span class="nx">vals</span><span class="o">,</span> <span class="nx">complex</span><span class="o">:</span><span class="nx">subvals</span> <span class="o">};</span> |
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102 <span class="o">}</span> <span class="k">else</span> <span class="o">{</span> |
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103 <span class="k">return</span> <span class="kc">null</span><span class="o">;</span> |
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104 <span class="o">}</span> |
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105 <span class="o">},</span> |
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106 |
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107 <span class="c">/**</span> |
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108 <span class="c"> * Returns the initial value of the given attribute from</span> |
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109 <span class="c"> * either the default configuration provided, or the </span> |
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110 <span class="c"> * over-ridden value if it exists in the set of initValues </span> |
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111 <span class="c"> * provided and the attribute is not read-only.</span> |
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112 <span class="c"> *</span> |
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113 <span class="c"> * @param {String} attr The name of the attribute</span> |
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114 <span class="c"> * @param {Object} cfg The attribute configuration object</span> |
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115 <span class="c"> * @param {Object} initValues The object with simple and complex attribute name/value pairs returned from _normAttrVals</span> |
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116 <span class="c"> *</span> |
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117 <span class="c"> * @return {Any} The initial value of the attribute.</span> |
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118 <span class="c"> *</span> |
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119 <span class="c"> * @method _getAttrInitVal</span> |
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120 <span class="c"> * @private</span> |
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121 <span class="c"> */</span> |
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122 <span class="nx">_getAttrInitVal</span> <span class="o">:</span> <span class="k">function</span><span class="o">(</span><span class="nx">attr</span><span class="o">,</span> <span class="nx">cfg</span><span class="o">,</span> <span class="nx">initValues</span><span class="o">)</span> <span class="o">{</span> |
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123 |
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124 <span class="k">var</span> <span class="nx">val</span> <span class="o">=</span> <span class="o">(</span><span class="nx">cfg</span><span class="o">.</span><span class="nx">valueFn</span><span class="o">)</span> <span class="o">?</span> <span class="nx">cfg</span><span class="o">.</span><span class="nx">valueFn</span><span class="o">.</span><span class="nx">call</span><span class="o">(</span><span class="k">this</span><span class="o">)</span> <span class="o">:</span> <span class="nx">cfg</span><span class="o">.</span><span class="nx">value</span><span class="o">,</span> |
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125 <span class="nx">simple</span><span class="o">,</span> |
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126 <span class="nx">complex</span><span class="o">,</span> |
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127 <span class="nx">i</span><span class="o">,</span> |
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128 <span class="nx">l</span><span class="o">,</span> |
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129 <span class="nx">path</span><span class="o">,</span> |
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130 <span class="nx">subval</span><span class="o">,</span> |
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131 <span class="nx">subvals</span><span class="o">;</span> |
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132 |
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133 <span class="k">if</span> <span class="o">(!</span><span class="nx">cfg</span><span class="o">.</span><span class="nx">readOnly</span> <span class="o">&&</span> <span class="nx">initValues</span><span class="o">)</span> <span class="o">{</span> |
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134 |
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135 <span class="c">// Simple Attributes</span> |
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136 <span class="c"></span> <span class="nx">simple</span> <span class="o">=</span> <span class="nx">initValues</span><span class="o">.</span><span class="nx">simple</span><span class="o">;</span> |
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137 <span class="k">if</span> <span class="o">(</span><span class="nx">simple</span> <span class="o">&&</span> <span class="nx">simple</span><span class="o">.</span><span class="nx">hasOwnProperty</span><span class="o">(</span><span class="nx">attr</span><span class="o">))</span> <span class="o">{</span> |
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138 <span class="nx">val</span> <span class="o">=</span> <span class="nx">simple</span><span class="o">[</span><span class="nx">attr</span><span class="o">];</span> |
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139 <span class="o">}</span> |
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140 |
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141 <span class="c">// Complex Attributes (complex values applied, after simple, incase both are set)</span> |
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142 <span class="c"></span> <span class="nx">complex</span> <span class="o">=</span> <span class="nx">initValues</span><span class="o">.</span><span class="nx">complex</span><span class="o">;</span> |
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143 <span class="k">if</span> <span class="o">(</span><span class="nx">complex</span> <span class="o">&&</span> <span class="nx">complex</span><span class="o">.</span><span class="nx">hasOwnProperty</span><span class="o">(</span><span class="nx">attr</span><span class="o">))</span> <span class="o">{</span> |
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144 <span class="nx">subvals</span> <span class="o">=</span> <span class="nx">complex</span><span class="o">[</span><span class="nx">attr</span><span class="o">];</span> |
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145 <span class="k">for</span> <span class="o">(</span><span class="nx">i</span> <span class="o">=</span> <span class="m">0</span><span class="o">,</span> <span class="nx">l</span> <span class="o">=</span> <span class="nx">subvals</span><span class="o">.</span><span class="nx">length</span><span class="o">;</span> <span class="nx">i</span> <span class="o"><</span> <span class="nx">l</span><span class="o">;</span> <span class="o">++</span><span class="nx">i</span><span class="o">)</span> <span class="o">{</span> |
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146 <span class="nx">path</span> <span class="o">=</span> <span class="nx">subvals</span><span class="o">[</span><span class="nx">i</span><span class="o">].</span><span class="nx">path</span><span class="o">;</span> |
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147 <span class="nx">subval</span> <span class="o">=</span> <span class="nx">subvals</span><span class="o">[</span><span class="nx">i</span><span class="o">].</span><span class="nx">value</span><span class="o">;</span> |
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148 <span class="nx">O</span><span class="o">.</span><span class="nx">setValue</span><span class="o">(</span><span class="nx">val</span><span class="o">,</span> <span class="nx">path</span><span class="o">,</span> <span class="nx">subval</span><span class="o">);</span> |
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149 <span class="o">}</span> |
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150 <span class="o">}</span> |
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151 <span class="o">}</span> |
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152 |
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153 <span class="k">return</span> <span class="nx">val</span><span class="o">;</span> |
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154 <span class="o">}</span> |
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155 <span class="o">};</span> |
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156 |
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157 <span class="nx">Y</span><span class="o">.</span><span class="nx">mix</span><span class="o">(</span><span class="nx">Y</span><span class="o">.</span><span class="nx">Attribute</span><span class="o">,</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">Attribute</span><span class="o">.</span><span class="nx">Complex</span><span class="o">,</span> <span class="kc">true</span><span class="o">,</span> <span class="kc">null</span><span class="o">,</span> <span class="m">1</span><span class="o">);</span> |
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158 </pre></div> |
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242 <script type="text/javascript"> |
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