1 | /* |
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2 | * Move the selected items from selectbox "from" to "to", |
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3 | * where "from" and "to" are the selectbox names. |
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4 | */ |
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5 | function moveOptions(from, to) { |
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6 | fromList = eval('document.forms[0].' + from); |
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7 | toList = eval('document.forms[0].' + to); |
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8 | var sel = false; |
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9 | |
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10 | // walk through "from" list searching the selected items, |
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11 | // copy them to "to" and remove from "from" |
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12 | for (i = fromList.options.length - 1; i >= 0; i--) |
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13 | { |
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14 | var current = fromList.options[i]; |
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15 | if (current.selected) |
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16 | { |
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17 | sel = true; |
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18 | txt = current.text; |
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19 | val = current.value; |
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20 | toList.options[toList.length] = new Option(txt,val); |
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21 | fromList.options[i] = null; |
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22 | } |
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23 | } |
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24 | |
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25 | if (!sel) |
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26 | alert ("Selecione um item!"); |
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27 | |
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28 | // sort selectbox "to" |
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29 | sortOptions(to); |
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30 | } |
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31 | |
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32 | /* |
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33 | * Populate selectbox with the array elements |
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34 | */ |
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35 | function populateSelect(objName, array) { |
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36 | obj = eval('document.forms[0].' + objName); |
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37 | obj.length = 0; |
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38 | |
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39 | // walk through array and add elements to the selectbox |
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40 | for (i = 0; i < array.length; i++) { |
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41 | if( isArray(array[i]) ) { |
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42 | obj.options[obj.length] = new Option(array[i].text, array[i].value); |
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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 | * Populate the selectboxes. |
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49 | * @param objNameL Left selectbox name |
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50 | * @param arrayL Array with the elements of the left selectbox |
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51 | * @param sortL Boolean value to sort the left selectbox |
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52 | * @param objNameR Right selectbox name |
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53 | * @param arrayR Array with the elements of the right selectbox |
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54 | * @param sortR Boolean value to sort the right selectbox |
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55 | * @param execDiff This value indicates the direction of the diff |
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56 | * Values: LEFT - remove the left elements found in the right selectbox |
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57 | * RIGHT - remove the right elements found in the left selectbox |
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58 | * NONE - don't execute diff |
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59 | */ |
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60 | function populateSelects(objNameL, arrayL, sortL, |
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61 | objNameR, arrayR, sortR, |
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62 | execDiff) { |
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63 | if( isArray(arrayL) ) |
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64 | populateSelect(objNameL, arrayL); |
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65 | |
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66 | if( isArray(arrayR) ) |
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67 | populateSelect(objNameR, arrayR); |
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68 | |
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69 | if( sortL ) |
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70 | sortOptions(objNameL); |
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71 | |
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72 | if( sortR ) |
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73 | sortOptions(objNameR); |
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74 | |
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75 | switch(execDiff) { |
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76 | case "LEFT": |
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77 | selectDiff( objNameR, objNameL ); |
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78 | break; |
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79 | case "RIGHT": |
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80 | selectDiff( objNameL, objNameR ); |
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81 | break; |
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82 | default: |
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83 | break; |
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84 | } |
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85 | } |
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86 | |
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87 | /* |
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88 | * Select all items in a selectbox. |
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89 | */ |
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90 | function selectAllOptions( objName ) { |
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91 | obj = eval('document.forms[0].' + objName); |
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92 | |
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93 | for(i = 0; i < obj.length; i++) { |
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94 | obj.options[i].selected = true; |
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95 | } |
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96 | } |
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97 | |
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98 | /* |
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99 | * Check if the parameter is an array. |
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100 | * Return true if it's an array, and false, if it's not. |
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101 | */ |
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102 | function isArray( obj ) { |
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103 | if (typeof obj == 'object') { |
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104 | var criterion = obj.constructor.toString().match(/array/i); |
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105 | return (criterion != null); |
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106 | } |
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107 | return false; |
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108 | } |
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109 | |
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110 | /* |
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111 | * Get the values of a selectbox and return them in an array. |
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112 | */ |
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113 | function select2array(objName) { |
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114 | obj = eval('document.forms[0].' + objName); |
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115 | |
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116 | if(obj){ |
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117 | array = new Array(); |
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118 | |
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119 | for(i = 0; i < obj.length; i++) { |
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120 | array[i] = new Array(2); |
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121 | array[i].text = obj.options[i].text; |
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122 | array[i].value = obj.options[i].value; |
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123 | } |
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124 | |
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125 | return array; |
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126 | } |
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127 | return null; |
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128 | } |
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129 | |
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130 | /* |
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131 | * Copy the values of an array to a selectbox. |
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132 | */ |
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133 | function array2select(array, objName) |
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134 | { |
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135 | obj = eval('document.forms[0].' + objName); |
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136 | |
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137 | /* remove all elements from the selectbox */ |
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138 | for (i = obj.length - 1; i >= 0; i--) |
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139 | obj.options[i] = null; |
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140 | |
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141 | if (isArray(array)) |
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142 | for (i = 0; i < array.length; i++) |
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143 | obj.options[i] = new Option(array[i].text,array[i].value); |
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144 | } |
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145 | |
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146 | /* |
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147 | * Redefine the javascript sort function. |
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148 | * We need to compare the attributes a.text and b.text. |
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149 | */ |
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150 | function sortFunction(a, b) { |
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151 | if(a.text > b.text) |
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152 | return 1; |
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153 | if(a.text < b.text) |
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154 | return -1; |
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155 | return 0; |
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156 | } |
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157 | |
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158 | /* |
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159 | * Sort the elements of a selectbox. |
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160 | */ |
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161 | function sortOptions(objName) { |
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162 | arrTexts = select2array(objName); |
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163 | arrTexts.sort(sortFunction); |
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164 | array2select(arrTexts, objName); |
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165 | } |
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166 | |
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167 | /* |
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168 | * Remove the accents of a string. |
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169 | */ |
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170 | function removeAccents( text ){ |
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171 | var accents = "áàãââÁÀÃÂéêÉÊíÍóõôÓÔÕúüÚÜçÇ"; |
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172 | var traduction = "aaaaaAAAAeeEEiIoooOOOuuUUcC"; |
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173 | var pos, chr; |
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174 | var newTxt = ""; |
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175 | |
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176 | for (var i = 0; i < text.length; i++){ |
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177 | chr = text.charAt(i); |
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178 | pos = accents.indexOf(chr); |
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179 | if (pos > -1) |
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180 | newTxt += traduction.charAt(pos); |
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181 | else |
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182 | newTxt += text.charAt(i); |
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183 | } |
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184 | return newTxt; |
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185 | } |
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186 | |
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187 | function search(array, key) { |
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188 | for (i = 0; i < array.length; i++){ |
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189 | if (key == array[i].text) |
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190 | return i; |
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191 | } |
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192 | return -1; |
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193 | |
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194 | } |
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195 | |
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196 | /* |
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197 | * Binary search in a SORTED ARRAY. |
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198 | * Returns the element position, or -1. |
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199 | */ |
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200 | function binarySearch(array, key) { |
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201 | var i, lo, hi; |
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202 | |
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203 | // get the first and the last positions of the array, |
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204 | lo = 0; |
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205 | hi = array.length - 1; |
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206 | |
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207 | while( lo <= hi ) { |
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208 | // get the middle value |
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209 | var mid = Math.floor((lo + hi) / 2); |
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210 | |
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211 | // if the key is in the 'mid' position, return 'mid' |
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212 | if( key == array[mid].text ) |
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213 | return mid; |
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214 | // if key > 'mid' text, |
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215 | else if( key > array[mid].text) |
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216 | lo = mid + 1; |
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217 | // key < array[mid] |
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218 | else |
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219 | hi = mid - 1; |
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220 | } |
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221 | return -1; |
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222 | } |
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223 | |
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224 | /* |
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225 | * Difference between two selectboxes. Remove the elements of the objName2 |
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226 | * that are found in objName1. |
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227 | */ |
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228 | function selectDiff(objName1, objName2) { |
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229 | array1 = select2array(objName1); |
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230 | |
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231 | obj2 = eval('document.forms[0].' + objName2); |
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232 | |
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233 | for( var i = array1.length - 1; i >= 0; i-- ) { |
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234 | array2 = select2array(objName2); |
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235 | j = search(array2, array1[i].text); |
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236 | if( j != -1 ) |
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237 | obj2.options[j] = null; |
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238 | } |
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239 | } |
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