1 | //******************************************************** |
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2 | // Class Select |
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3 | // Display a Select |
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4 | // |
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5 | // obj objParam: {id, [parent], [specificClass], [maxOptionSize], [isDisable], [isDisplayed], [arrayData]} |
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6 | // int objParam.id: id of the dom element |
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7 | // [dom objParam.parent]: in which dom element to draw the button |
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8 | // [str objParam.specificClass] |
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9 | // [int objParam.maxOptionSize]: define a max number of line to display |
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10 | // [int objParam.isDisable]: is the Select disable by default? |
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11 | // [int objParam.isDisplayed]: is the Select opened by default? |
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12 | // [arr objParam.arrayData]: array of data to display |
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13 | // |
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14 | // Public functions |
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15 | // Select.getValue |
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16 | // Select.getName |
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17 | // Select.disable |
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18 | // Select.enable |
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19 | // Select.add |
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20 | // Select.remove |
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21 | // Select.clear |
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22 | // Select.select |
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23 | // Select.selectFirst |
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24 | //******************************************************** |
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25 | |
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26 | var Select = Class.create( { |
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27 | |
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28 | // Public functions ******************************************************** |
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29 | |
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30 | initialize: function( objectParameter ) |
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31 | { |
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32 | // Param |
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33 | this.id = objectParameter.id; |
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34 | this.parent = objectParameter.parent ? objectParameter.parent : document.body; |
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35 | this.isDisplayed = (true == objectParameter.isDisplayed) ? true : false; |
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36 | this.isDisable = (true == objectParameter.isDisable) ? true : false; |
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37 | this.maxOptionSize = objectParameter.maxOptionSize ? objectParameter.maxOptionSize : 0; |
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38 | this.indexOption = 0; |
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39 | this.isHover = false; |
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40 | this.arrayData = objectParameter.arrayData ? objectParameter.arrayData : $A(); |
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41 | this.arrayOptions = $A(); |
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42 | |
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43 | // Select div |
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44 | this.divSelect = document.createElement( "div" ); |
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45 | this.divSelect.id = this.id; |
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46 | this.divSelect.className = "select_container"; |
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47 | |
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48 | this.divSelectLeft = document.createElement( "div" ); |
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49 | this.divSelectLeft.className = "select_selectLeft"; |
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50 | this.divSelect.appendChild( this.divSelectLeft ); |
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51 | |
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52 | this.divSelectMiddle = document.createElement( "div" ); |
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53 | this.divSelectMiddle.className = "select_selectMiddle"; |
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54 | this.divSelect.appendChild( this.divSelectMiddle ); |
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55 | |
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56 | this.divSelectRight = document.createElement( "div" ); |
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57 | this.divSelectRight.className = "select_selectRight"; |
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58 | this.divSelect.appendChild( this.divSelectRight ); |
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59 | |
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60 | this.parent.appendChild( this.divSelect ); |
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61 | |
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62 | // Options div |
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63 | this.divOption = document.createElement( "div" ); |
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64 | this.divSelect.id = this.id; |
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65 | this.divOption.className = "select_choicelist"; |
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66 | this.parent.appendChild( this.divOption ); |
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67 | |
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68 | Event.observe( this.divSelect, "mouseup", this.toggleOption.bindAsEventListener( this ) ); |
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69 | Event.observe( document.body, "mousedown", this.hideOption.bindAsEventListener( this ) ); |
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70 | Event.observe( this.divSelect, 'mouseover', this.onMouseHover.bindAsEventListener( this ) ); |
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71 | Event.observe( this.divSelect, 'mouseout', this.onMouseOut.bindAsEventListener( this ) ); |
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72 | Event.observe( this.divOption, 'mouseover', this.onMouseHover.bindAsEventListener( this ) ); |
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73 | Event.observe( this.divOption, 'mouseout', this.onMouseOut.bindAsEventListener( this ) ); |
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74 | |
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75 | if( this.isDisplayed ) |
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76 | this.showOption(); |
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77 | |
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78 | if( this.isDisable ) |
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79 | this.hideOption(); |
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80 | }, |
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81 | |
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82 | getName: function() |
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83 | { |
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84 | return this.itemName; |
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85 | }, |
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86 | |
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87 | getValue: function() |
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88 | { |
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89 | return this.itemValue; |
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90 | }, |
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91 | |
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92 | // private |
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93 | toggleOption:function() |
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94 | { |
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95 | if( this.isDisplayed ) |
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96 | { |
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97 | this.isHover = false; |
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98 | this.hideOption(); |
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99 | } |
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100 | else |
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101 | this.showOption(); |
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102 | }, |
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103 | |
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104 | // private |
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105 | showOption:function() |
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106 | { |
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107 | if( this.isDisable ) |
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108 | return; |
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109 | |
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110 | this.isDisplayed = true; |
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111 | this.displayOptions(); |
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112 | this.divOption.style.display = "block"; |
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113 | }, |
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114 | |
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115 | // private |
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116 | hideOption: function() |
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117 | { |
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118 | if( this.isHover ) |
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119 | return; |
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120 | |
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121 | this.isDisplayed = false; |
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122 | this.divOption.style.display = "none"; |
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123 | }, |
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124 | |
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125 | // public |
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126 | disable: function() |
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127 | { |
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128 | this.isDisable = true; |
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129 | this.divSelect.addClassName( "disable" ); |
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130 | this.hideOption(); |
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131 | }, |
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132 | |
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133 | // public |
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134 | enable: function() |
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135 | { |
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136 | this.isDisable = false; |
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137 | this.divSelect.removeClassName( "disable" ); |
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138 | }, |
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139 | |
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140 | // public |
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141 | add: function( itemValue, itemName, callback ) |
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142 | { |
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143 | |
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144 | var divOption = document.createElement( "div" ); |
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145 | divOption.className = "select_item_middle"; |
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146 | divOption.innerHTML = itemName; |
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147 | divOption.itemName = itemName; |
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148 | divOption.itemValue = itemValue; |
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149 | divOption.callback = callback; |
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150 | this.divOption.appendChild( divOption ); |
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151 | |
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152 | Event.observe( divOption, 'click', this.onOptionClick.bind( this, divOption ) ); |
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153 | |
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154 | this.arrayOptions.push( divOption ); |
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155 | }, |
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156 | |
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157 | // public |
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158 | remove: function( itemValue ) |
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159 | { |
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160 | this.arrayOptions.each( function( divOption ) |
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161 | { |
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162 | if( divOption.itemValue == itemValue ) |
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163 | { |
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164 | this.divOption.removeChild( divOption ); |
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165 | this.arrayOptions = this.arrayOptions.without( divOption ); |
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166 | throw $break; |
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167 | } |
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168 | }.bind( this ) ); |
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169 | }, |
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170 | |
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171 | // public |
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172 | clear: function() |
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173 | { |
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174 | this.arrayOptions.each( function( divOption ) |
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175 | { |
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176 | this.divOption.removeChild( divOption ); |
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177 | this.arrayOptions = this.arrayOptions.without( divOption ); |
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178 | }.bind( this ) ); |
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179 | }, |
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180 | |
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181 | // public |
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182 | // @itemValue : code of the selected line |
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183 | // @ execute : true / false. Execute the callback. |
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184 | select: function( itemValue, execute ) |
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185 | { |
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186 | this.arrayOptions.each( function( divOption ) |
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187 | { |
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188 | if( divOption.itemValue == itemValue ) |
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189 | { |
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190 | this.selectOption( divOption ); |
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191 | if( execute && undefined != divOption.callback ) |
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192 | divOption.callback( divOption.itemValue ); |
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193 | throw $break; |
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194 | } |
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195 | }.bind( this ) ); |
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196 | }, |
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197 | |
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198 | // public |
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199 | // @ execute : true / false. Execute the callback. |
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200 | selectFirst: function( execute ) |
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201 | { |
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202 | var divOption = this.arrayOptions.first(); |
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203 | if( undefined == divOption ) |
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204 | return; |
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205 | |
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206 | this.selectOption( divOption ); |
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207 | if( execute && undefined != divOption.callback ) |
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208 | divOption.callback( divOption.itemValue ); |
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209 | }, |
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210 | |
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211 | // private |
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212 | selectOption: function( divOption ) |
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213 | { |
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214 | this.itemName = divOption.itemName; |
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215 | this.itemValue = divOption.itemValue; |
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216 | this.divSelectMiddle.innerHTML = divOption.itemName; |
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217 | }, |
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218 | |
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219 | // private |
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220 | onOptionClick: function( divOption ) |
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221 | { |
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222 | this.isHover = false; |
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223 | this.hideOption(); |
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224 | this.select( divOption.itemValue, true ); |
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225 | if( undefined != divOption.callback ) |
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226 | divOption.callback( divOption.itemValue ); |
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227 | }, |
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228 | |
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229 | // private |
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230 | onMouseHover: function() |
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231 | { |
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232 | this.isHover = true; |
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233 | }, |
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234 | |
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235 | // private |
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236 | onMouseOut: function() |
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237 | { |
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238 | this.isHover = false; |
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239 | }, |
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240 | |
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241 | // private |
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242 | displayOptions: function() |
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243 | { |
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244 | var fromOption = this.indexOption; |
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245 | var toOption = this.indexOption + this.maxOptionSize - 1; |
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246 | for( var i = 0; i < this.arrayOptions.size(); i++ ) |
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247 | { |
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248 | if( 0 == this.maxOptionSize ) |
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249 | this.arrayOptions[i].style.display = ""; |
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250 | else if( i >= fromOption && i <= toOption ) |
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251 | this.arrayOptions[i].style.display = ""; |
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252 | else |
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253 | this.arrayOptions[i].style.display = "none"; |
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254 | } |
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255 | } |
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256 | } ); |
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