1 | /* |
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2 | * jQuery Autocomplete plugin 1.1 |
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3 | * |
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4 | * Copyright (c) 2009 Jörn Zaefferer |
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5 | * |
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6 | * Dual licensed under the MIT and GPL licenses: |
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7 | * http://www.opensource.org/licenses/mit-license.php |
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8 | * http://www.gnu.org/licenses/gpl.html |
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9 | * |
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10 | * Revision: $Id: jquery.autocomplete.js 15 2009-08-22 10:30:27Z joern.zaefferer $ |
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11 | */ |
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12 | |
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13 | ;(function($) { |
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14 | |
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15 | $.fn.extend({ |
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16 | autocomplete: function(urlOrData, options) { |
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17 | var isUrl = typeof urlOrData == "string"; |
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18 | options = $.extend({}, $.Autocompleter.defaults, { |
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19 | url: isUrl ? urlOrData : null, |
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20 | data: isUrl ? null : urlOrData, |
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21 | delay: isUrl ? $.Autocompleter.defaults.delay : 10, |
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22 | max: options && !options.scroll ? 10 : 150 |
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23 | }, options); |
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24 | |
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25 | // if highlight is set to false, replace it with a do-nothing function |
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26 | options.highlight = options.highlight || function(value) { return value; }; |
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27 | |
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28 | // if the formatMatch option is not specified, then use formatItem for backwards compatibility |
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29 | options.formatMatch = options.formatMatch || options.formatItem; |
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30 | |
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31 | return this.each(function() { |
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32 | new $.Autocompleter(this, options); |
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33 | }); |
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34 | }, |
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35 | result: function(handler) { |
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36 | return this.bind("result", handler); |
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37 | }, |
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38 | search: function(handler) { |
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39 | return this.trigger("search", [handler]); |
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40 | }, |
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41 | flushCache: function() { |
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42 | return this.trigger("flushCache"); |
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43 | }, |
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44 | setOptions: function(options){ |
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45 | return this.trigger("setOptions", [options]); |
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46 | }, |
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47 | unautocomplete: function() { |
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48 | return this.trigger("unautocomplete"); |
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49 | } |
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50 | }); |
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51 | |
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52 | $.Autocompleter = function(input, options) { |
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53 | |
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54 | var KEY = { |
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55 | UP: 38, |
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56 | DOWN: 40, |
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57 | DEL: 46, |
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58 | TAB: 9, |
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59 | RETURN: 13, |
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60 | ESC: 27, |
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61 | COMMA: 188, |
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62 | PAGEUP: 33, |
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63 | PAGEDOWN: 34, |
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64 | BACKSPACE: 8 |
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65 | }; |
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66 | |
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67 | // Create $ object for input element |
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68 | var $input = $(input).attr("autocomplete", "off").addClass(options.inputClass); |
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69 | |
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70 | var timeout; |
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71 | var previousValue = ""; |
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72 | var cache = $.Autocompleter.Cache(options); |
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73 | var hasFocus = 0; |
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74 | var lastKeyPressCode; |
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75 | var config = { |
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76 | mouseDownOnSelect: false |
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77 | }; |
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78 | var select = $.Autocompleter.Select(options, input, selectCurrent, config); |
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79 | |
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80 | var blockSubmit; |
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81 | |
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82 | // prevent form submit in opera when selecting with return key |
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83 | $.browser.opera && $(input.form).bind("submit.autocomplete", function() { |
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84 | if (blockSubmit) { |
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85 | blockSubmit = false; |
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86 | return false; |
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87 | } |
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88 | }); |
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89 | |
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90 | // only opera doesn't trigger keydown multiple times while pressed, others don't work with keypress at all |
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91 | $input.bind(($.browser.opera ? "keypress" : "keydown") + ".autocomplete", function(event) { |
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92 | // a keypress means the input has focus |
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93 | // avoids issue where input had focus before the autocomplete was applied |
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94 | hasFocus = 1; |
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95 | // track last key pressed |
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96 | lastKeyPressCode = event.keyCode; |
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97 | switch(event.keyCode) { |
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98 | |
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99 | case KEY.UP: |
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100 | event.preventDefault(); |
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101 | if ( select.visible() ) { |
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102 | select.prev(); |
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103 | } else { |
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104 | onChange(0, true); |
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105 | } |
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106 | break; |
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107 | |
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108 | case KEY.DOWN: |
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109 | event.preventDefault(); |
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110 | if ( select.visible() ) { |
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111 | select.next(); |
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112 | } else { |
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113 | onChange(0, true); |
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114 | } |
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115 | break; |
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116 | |
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117 | case KEY.PAGEUP: |
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118 | event.preventDefault(); |
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119 | if ( select.visible() ) { |
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120 | select.pageUp(); |
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121 | } else { |
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122 | onChange(0, true); |
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123 | } |
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124 | break; |
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125 | |
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126 | case KEY.PAGEDOWN: |
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127 | event.preventDefault(); |
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128 | if ( select.visible() ) { |
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129 | select.pageDown(); |
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130 | } else { |
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131 | onChange(0, true); |
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132 | } |
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133 | break; |
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134 | |
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135 | // matches also semicolon |
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136 | case options.multiple && $.trim(options.multipleSeparator) == "," && KEY.COMMA: |
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137 | case KEY.TAB: |
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138 | case KEY.RETURN: |
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139 | if( selectCurrent() ) { |
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140 | // stop default to prevent a form submit, Opera needs special handling |
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141 | event.preventDefault(); |
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142 | blockSubmit = true; |
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143 | return false; |
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144 | } |
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145 | break; |
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146 | |
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147 | case KEY.ESC: |
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148 | select.hide(); |
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149 | break; |
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150 | |
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151 | default: |
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152 | clearTimeout(timeout); |
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153 | timeout = setTimeout(onChange, options.delay); |
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154 | break; |
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155 | } |
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156 | }).focus(function(){ |
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157 | // track whether the field has focus, we shouldn't process any |
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158 | // results if the field no longer has focus |
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159 | hasFocus++; |
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160 | }).blur(function() { |
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161 | hasFocus = 0; |
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162 | if (!config.mouseDownOnSelect) { |
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163 | hideResults(); |
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164 | } |
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165 | }).click(function() { |
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166 | // show select when clicking in a focused field |
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167 | if ( hasFocus++ > 1 && !select.visible() ) { |
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168 | onChange(0, true); |
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169 | } |
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170 | }).bind("search", function() { |
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171 | // TODO why not just specifying both arguments? |
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172 | var fn = (arguments.length > 1) ? arguments[1] : null; |
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173 | function findValueCallback(q, data) { |
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174 | var result; |
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175 | if( data && data.length ) { |
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176 | for (var i=0; i < data.length; i++) { |
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177 | if( data[i].result.toLowerCase() == q.toLowerCase() ) { |
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178 | result = data[i]; |
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179 | break; |
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180 | } |
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181 | } |
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182 | } |
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183 | if( typeof fn == "function" ) fn(result); |
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184 | else $input.trigger("result", result && [result.data, result.value]); |
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185 | } |
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186 | $.each(trimWords($input.val()), function(i, value) { |
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187 | request(value, findValueCallback, findValueCallback); |
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188 | }); |
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189 | }).bind("flushCache", function() { |
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190 | cache.flush(); |
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191 | }).bind("setOptions", function() { |
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192 | $.extend(options, arguments[1]); |
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193 | // if we've updated the data, repopulate |
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194 | if ( "data" in arguments[1] ) |
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195 | cache.populate(); |
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196 | }).bind("unautocomplete", function() { |
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197 | select.unbind(); |
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198 | $input.unbind(); |
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199 | $(input.form).unbind(".autocomplete"); |
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200 | }); |
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201 | |
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202 | |
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203 | function selectCurrent() { |
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204 | var selected = select.selected(); |
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205 | if( !selected ) |
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206 | return false; |
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207 | |
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208 | var v = selected.result; |
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209 | previousValue = v; |
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210 | |
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211 | if ( options.multiple ) { |
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212 | var words = trimWords($input.val()); |
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213 | if ( words.length > 1 ) { |
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214 | var seperator = options.multipleSeparator.length; |
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215 | var cursorAt = $(input).selection().start; |
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216 | var wordAt, progress = 0; |
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217 | $.each(words, function(i, word) { |
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218 | progress += word.length; |
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219 | if (cursorAt <= progress) { |
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220 | wordAt = i; |
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221 | return false; |
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222 | } |
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223 | progress += seperator; |
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224 | }); |
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225 | words[wordAt] = v; |
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226 | // TODO this should set the cursor to the right position, but it gets overriden somewhere |
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227 | //$.Autocompleter.Selection(input, progress + seperator, progress + seperator); |
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228 | v = words.join( options.multipleSeparator ); |
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229 | } |
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230 | v += options.multipleSeparator; |
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231 | } |
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232 | |
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233 | $input.val(v); |
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234 | hideResultsNow(); |
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235 | $input.trigger("result", [selected.data, selected.value]); |
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236 | return true; |
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237 | } |
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238 | |
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239 | function onChange(crap, skipPrevCheck) { |
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240 | if( lastKeyPressCode == KEY.DEL ) { |
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241 | select.hide(); |
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242 | return; |
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243 | } |
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244 | |
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245 | var currentValue = $input.val(); |
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246 | |
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247 | if ( !skipPrevCheck && currentValue == previousValue ) |
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248 | return; |
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249 | |
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250 | previousValue = currentValue; |
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251 | |
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252 | currentValue = lastWord(currentValue); |
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253 | if ( currentValue.length >= options.minChars) { |
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254 | $input.addClass(options.loadingClass); |
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255 | if (!options.matchCase) |
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256 | currentValue = currentValue.toLowerCase(); |
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257 | request(currentValue, receiveData, hideResultsNow); |
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258 | } else { |
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259 | stopLoading(); |
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260 | select.hide(); |
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261 | } |
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262 | }; |
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263 | |
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264 | function trimWords(value) { |
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265 | if (!value) |
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266 | return [""]; |
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267 | if (!options.multiple) |
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268 | return [$.trim(value)]; |
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269 | return $.map(value.split(options.multipleSeparator), function(word) { |
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270 | return $.trim(value).length ? $.trim(word) : null; |
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271 | }); |
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272 | } |
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273 | |
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274 | function lastWord(value) { |
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275 | if ( !options.multiple ) |
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276 | return value; |
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277 | var words = trimWords(value); |
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278 | if (words.length == 1) |
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279 | return words[0]; |
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280 | var cursorAt = $(input).selection().start; |
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281 | if (cursorAt == value.length) { |
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282 | words = trimWords(value) |
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283 | } else { |
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284 | words = trimWords(value.replace(value.substring(cursorAt), "")); |
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285 | } |
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286 | return words[words.length - 1]; |
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287 | } |
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288 | |
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289 | // fills in the input box w/the first match (assumed to be the best match) |
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290 | // q: the term entered |
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291 | // sValue: the first matching result |
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292 | function autoFill(q, sValue){ |
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293 | // autofill in the complete box w/the first match as long as the user hasn't entered in more data |
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294 | // if the last user key pressed was backspace, don't autofill |
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295 | if( options.autoFill && (lastWord($input.val()).toLowerCase() == q.toLowerCase()) && lastKeyPressCode != KEY.BACKSPACE ) { |
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296 | // fill in the value (keep the case the user has typed) |
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297 | $input.val($input.val() + sValue.substring(lastWord(previousValue).length)); |
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298 | // select the portion of the value not typed by the user (so the next character will erase) |
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299 | $(input).selection(previousValue.length, previousValue.length + sValue.length); |
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300 | } |
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301 | }; |
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302 | |
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303 | function hideResults() { |
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304 | clearTimeout(timeout); |
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305 | timeout = setTimeout(hideResultsNow, 200); |
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306 | }; |
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307 | |
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308 | function hideResultsNow() { |
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309 | var wasVisible = select.visible(); |
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310 | select.hide(); |
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311 | clearTimeout(timeout); |
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312 | stopLoading(); |
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313 | if (options.mustMatch) { |
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314 | // call search and run callback |
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315 | $input.search( |
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316 | function (result){ |
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317 | // if no value found, clear the input box |
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318 | if( !result ) { |
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319 | if (options.multiple) { |
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320 | var words = trimWords($input.val()).slice(0, -1); |
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321 | $input.val( words.join(options.multipleSeparator) + (words.length ? options.multipleSeparator : "") ); |
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322 | } |
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323 | else { |
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324 | $input.val( "" ); |
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325 | $input.trigger("result", null); |
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326 | } |
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327 | } |
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328 | } |
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329 | ); |
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330 | } |
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331 | }; |
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332 | |
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333 | function receiveData(q, data) { |
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334 | if ( data && data.length && hasFocus ) { |
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335 | stopLoading(); |
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336 | select.display(data, q); |
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337 | autoFill(q, data[0].value); |
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338 | select.show(); |
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339 | } else { |
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340 | hideResultsNow(); |
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341 | } |
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342 | }; |
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343 | |
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344 | function request(term, success, failure) { |
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345 | if (!options.matchCase) |
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346 | term = term.toLowerCase(); |
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347 | var data = cache.load(term); |
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348 | // recieve the cached data |
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349 | if (data && data.length) { |
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350 | success(term, data); |
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351 | // if an AJAX url has been supplied, try loading the data now |
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352 | } else if( (typeof options.url == "string") && (options.url.length > 0) ){ |
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353 | |
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354 | var extraParams = { |
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355 | timestamp: +new Date() |
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356 | }; |
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357 | $.each(options.extraParams, function(key, param) { |
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358 | extraParams[key] = typeof param == "function" ? param() : param; |
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359 | }); |
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360 | |
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361 | $.ajax({ |
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362 | // try to leverage ajaxQueue plugin to abort previous requests |
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363 | mode: "abort", |
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364 | // limit abortion to this input |
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365 | port: "autocomplete" + input.name, |
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366 | dataType: options.dataType, |
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367 | url: options.url, |
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368 | data: $.extend({ |
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369 | q: lastWord(term), |
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370 | limit: options.max |
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371 | }, extraParams), |
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372 | success: function(data) { |
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373 | var parsed = options.parse && options.parse(data) || parse(data); |
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374 | cache.add(term, parsed); |
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375 | success(term, parsed); |
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376 | } |
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377 | }); |
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378 | } else { |
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379 | // if we have a failure, we need to empty the list -- this prevents the the [TAB] key from selecting the last successful match |
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380 | select.emptyList(); |
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381 | failure(term); |
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382 | } |
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383 | }; |
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384 | |
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385 | function parse(data) { |
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386 | var parsed = []; |
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387 | var rows = data.split("\n"); |
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388 | for (var i=0; i < rows.length; i++) { |
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389 | var row = $.trim(rows[i]); |
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390 | if (row) { |
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391 | row = row.split("|"); |
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392 | parsed[parsed.length] = { |
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393 | data: row, |
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394 | value: row[0], |
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395 | result: options.formatResult && options.formatResult(row, row[0]) || row[0] |
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396 | }; |
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397 | } |
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398 | } |
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399 | return parsed; |
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400 | }; |
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401 | |
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402 | function stopLoading() { |
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403 | $input.removeClass(options.loadingClass); |
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404 | }; |
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405 | |
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406 | }; |
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407 | |
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408 | $.Autocompleter.defaults = { |
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409 | inputClass: "ac_input", |
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410 | resultsClass: "ac_results", |
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411 | loadingClass: "ac_loading", |
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412 | minChars: 1, |
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413 | delay: 400, |
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414 | matchCase: false, |
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415 | matchSubset: true, |
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416 | matchContains: false, |
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417 | cacheLength: 10, |
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418 | max: 100, |
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419 | mustMatch: false, |
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420 | extraParams: {}, |
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421 | selectFirst: true, |
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422 | formatItem: function(row) { return row[0]; }, |
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423 | formatMatch: null, |
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424 | autoFill: false, |
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425 | width: 0, |
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426 | multiple: false, |
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427 | multipleSeparator: ", ", |
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428 | highlight: function(value, term) { |
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429 | return value.replace(new RegExp("(?![^&;]+;)(?!<[^<>]*)(" + term.replace(/([\^\$\(\)\[\]\{\}\*\.\+\?\|\\])/gi, "\\$1") + ")(?![^<>]*>)(?![^&;]+;)", "gi"), "<strong>$1</strong>"); |
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430 | }, |
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431 | scroll: true, |
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432 | scrollHeight: 180 |
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433 | }; |
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434 | |
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435 | $.Autocompleter.Cache = function(options) { |
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436 | |
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437 | var data = {}; |
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438 | var length = 0; |
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439 | |
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440 | function matchSubset(s, sub) { |
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441 | if (!options.matchCase) |
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442 | s = s.toLowerCase(); |
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443 | var i = s.indexOf(sub); |
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444 | if (options.matchContains == "word"){ |
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445 | i = s.toLowerCase().search("\\b" + sub.toLowerCase()); |
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446 | } |
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447 | if (i == -1) return false; |
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448 | return i == 0 || options.matchContains; |
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449 | }; |
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450 | |
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451 | function add(q, value) { |
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452 | if (length > options.cacheLength){ |
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453 | flush(); |
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454 | } |
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455 | if (!data[q]){ |
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456 | length++; |
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457 | } |
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458 | data[q] = value; |
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459 | } |
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460 | |
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461 | function populate(){ |
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462 | if( !options.data ) return false; |
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463 | // track the matches |
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464 | var stMatchSets = {}, |
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465 | nullData = 0; |
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466 | |
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467 | // no url was specified, we need to adjust the cache length to make sure it fits the local data store |
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468 | if( !options.url ) options.cacheLength = 1; |
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469 | |
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470 | // track all options for minChars = 0 |
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471 | stMatchSets[""] = []; |
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472 | |
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473 | // loop through the array and create a lookup structure |
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474 | for ( var i = 0, ol = options.data.length; i < ol; i++ ) { |
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475 | var rawValue = options.data[i]; |
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476 | // if rawValue is a string, make an array otherwise just reference the array |
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477 | rawValue = (typeof rawValue == "string") ? [rawValue] : rawValue; |
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478 | |
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479 | var value = options.formatMatch(rawValue, i+1, options.data.length); |
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480 | if ( value === false ) |
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481 | continue; |
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482 | |
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483 | var firstChar = value.charAt(0).toLowerCase(); |
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484 | // if no lookup array for this character exists, look it up now |
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485 | if( !stMatchSets[firstChar] ) |
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486 | stMatchSets[firstChar] = []; |
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487 | |
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488 | // if the match is a string |
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489 | var row = { |
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490 | value: value, |
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491 | data: rawValue, |
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492 | result: options.formatResult && options.formatResult(rawValue) || value |
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493 | }; |
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494 | |
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495 | // push the current match into the set list |
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496 | stMatchSets[firstChar].push(row); |
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497 | |
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498 | // keep track of minChars zero items |
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499 | if ( nullData++ < options.max ) { |
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500 | stMatchSets[""].push(row); |
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501 | } |
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502 | }; |
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503 | |
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504 | // add the data items to the cache |
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505 | $.each(stMatchSets, function(i, value) { |
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506 | // increase the cache size |
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507 | options.cacheLength++; |
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508 | // add to the cache |
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509 | add(i, value); |
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510 | }); |
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511 | } |
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512 | |
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513 | // populate any existing data |
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514 | setTimeout(populate, 25); |
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515 | |
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516 | function flush(){ |
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517 | data = {}; |
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518 | length = 0; |
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519 | } |
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520 | |
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521 | return { |
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522 | flush: flush, |
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523 | add: add, |
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524 | populate: populate, |
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525 | load: function(q) { |
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526 | if (!options.cacheLength || !length) |
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527 | return null; |
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528 | /* |
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529 | * if dealing w/local data and matchContains than we must make sure |
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530 | * to loop through all the data collections looking for matches |
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531 | */ |
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532 | if( !options.url && options.matchContains ){ |
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533 | // track all matches |
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534 | var csub = []; |
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535 | // loop through all the data grids for matches |
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536 | for( var k in data ){ |
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537 | // don't search through the stMatchSets[""] (minChars: 0) cache |
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538 | // this prevents duplicates |
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539 | if( k.length > 0 ){ |
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540 | var c = data[k]; |
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541 | $.each(c, function(i, x) { |
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542 | // if we've got a match, add it to the array |
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543 | if (matchSubset(x.value, q)) { |
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544 | csub.push(x); |
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545 | } |
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546 | }); |
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547 | } |
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548 | } |
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549 | return csub; |
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550 | } else |
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551 | // if the exact item exists, use it |
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552 | if (data[q]){ |
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553 | return data[q]; |
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554 | } else |
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555 | if (options.matchSubset) { |
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556 | for (var i = q.length - 1; i >= options.minChars; i--) { |
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557 | var c = data[q.substr(0, i)]; |
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558 | if (c) { |
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559 | var csub = []; |
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560 | $.each(c, function(i, x) { |
---|
561 | if (matchSubset(x.value, q)) { |
---|
562 | csub[csub.length] = x; |
---|
563 | } |
---|
564 | }); |
---|
565 | return csub; |
---|
566 | } |
---|
567 | } |
---|
568 | } |
---|
569 | return null; |
---|
570 | } |
---|
571 | }; |
---|
572 | }; |
---|
573 | |
---|
574 | $.Autocompleter.Select = function (options, input, select, config) { |
---|
575 | var CLASSES = { |
---|
576 | ACTIVE: "ac_over" |
---|
577 | }; |
---|
578 | |
---|
579 | var listItems, |
---|
580 | active = -1, |
---|
581 | data, |
---|
582 | term = "", |
---|
583 | needsInit = true, |
---|
584 | element, |
---|
585 | list; |
---|
586 | |
---|
587 | // Create results |
---|
588 | function init() { |
---|
589 | if (!needsInit) |
---|
590 | return; |
---|
591 | element = $("<div/>") |
---|
592 | .hide() |
---|
593 | .addClass(options.resultsClass) |
---|
594 | .css("position", "absolute") |
---|
595 | .appendTo(document.body); |
---|
596 | |
---|
597 | list = $("<ul/>").appendTo(element).mouseover( function(event) { |
---|
598 | if(target(event).nodeName && target(event).nodeName.toUpperCase() == 'LI') { |
---|
599 | active = $("li", list).removeClass(CLASSES.ACTIVE).index(target(event)); |
---|
600 | $(target(event)).addClass(CLASSES.ACTIVE); |
---|
601 | } |
---|
602 | }).click(function(event) { |
---|
603 | $(target(event)).addClass(CLASSES.ACTIVE); |
---|
604 | select(); |
---|
605 | // TODO provide option to avoid setting focus again after selection? useful for cleanup-on-focus |
---|
606 | input.focus(); |
---|
607 | return false; |
---|
608 | }).mousedown(function() { |
---|
609 | config.mouseDownOnSelect = true; |
---|
610 | }).mouseup(function() { |
---|
611 | config.mouseDownOnSelect = false; |
---|
612 | }); |
---|
613 | |
---|
614 | if( options.width > 0 ) |
---|
615 | element.css("width", options.width); |
---|
616 | |
---|
617 | needsInit = false; |
---|
618 | } |
---|
619 | |
---|
620 | function target(event) { |
---|
621 | var element = event.target; |
---|
622 | while(element && element.tagName != "LI") |
---|
623 | element = element.parentNode; |
---|
624 | // more fun with IE, sometimes event.target is empty, just ignore it then |
---|
625 | if(!element) |
---|
626 | return []; |
---|
627 | return element; |
---|
628 | } |
---|
629 | |
---|
630 | function moveSelect(step) { |
---|
631 | listItems.slice(active, active + 1).removeClass(CLASSES.ACTIVE); |
---|
632 | movePosition(step); |
---|
633 | var activeItem = listItems.slice(active, active + 1).addClass(CLASSES.ACTIVE); |
---|
634 | if(options.scroll) { |
---|
635 | var offset = 0; |
---|
636 | listItems.slice(0, active).each(function() { |
---|
637 | offset += this.offsetHeight; |
---|
638 | }); |
---|
639 | if((offset + activeItem[0].offsetHeight - list.scrollTop()) > list[0].clientHeight) { |
---|
640 | list.scrollTop(offset + activeItem[0].offsetHeight - list.innerHeight()); |
---|
641 | } else if(offset < list.scrollTop()) { |
---|
642 | list.scrollTop(offset); |
---|
643 | } |
---|
644 | } |
---|
645 | }; |
---|
646 | |
---|
647 | function movePosition(step) { |
---|
648 | active += step; |
---|
649 | if (active < 0) { |
---|
650 | active = listItems.size() - 1; |
---|
651 | } else if (active >= listItems.size()) { |
---|
652 | active = 0; |
---|
653 | } |
---|
654 | } |
---|
655 | |
---|
656 | function limitNumberOfItems(available) { |
---|
657 | return options.max && options.max < available |
---|
658 | ? options.max |
---|
659 | : available; |
---|
660 | } |
---|
661 | |
---|
662 | function fillList() { |
---|
663 | list.empty(); |
---|
664 | var max = limitNumberOfItems(data.length); |
---|
665 | for (var i=0; i < max; i++) { |
---|
666 | if (!data[i]) |
---|
667 | continue; |
---|
668 | var formatted = options.formatItem(data[i].data, i+1, max, data[i].value, term); |
---|
669 | if ( formatted === false ) |
---|
670 | continue; |
---|
671 | var li = $("<li/>").html( options.highlight(formatted, term) ).addClass(i%2 == 0 ? "ac_even" : "ac_odd").appendTo(list)[0]; |
---|
672 | $.data(li, "ac_data", data[i]); |
---|
673 | } |
---|
674 | listItems = list.find("li"); |
---|
675 | if ( options.selectFirst ) { |
---|
676 | listItems.slice(0, 1).addClass(CLASSES.ACTIVE); |
---|
677 | active = 0; |
---|
678 | } |
---|
679 | // apply bgiframe if available |
---|
680 | if ( $.fn.bgiframe ) |
---|
681 | list.bgiframe(); |
---|
682 | } |
---|
683 | |
---|
684 | return { |
---|
685 | display: function(d, q) { |
---|
686 | init(); |
---|
687 | data = d; |
---|
688 | term = q; |
---|
689 | fillList(); |
---|
690 | }, |
---|
691 | next: function() { |
---|
692 | moveSelect(1); |
---|
693 | }, |
---|
694 | prev: function() { |
---|
695 | moveSelect(-1); |
---|
696 | }, |
---|
697 | pageUp: function() { |
---|
698 | if (active != 0 && active - 8 < 0) { |
---|
699 | moveSelect( -active ); |
---|
700 | } else { |
---|
701 | moveSelect(-8); |
---|
702 | } |
---|
703 | }, |
---|
704 | pageDown: function() { |
---|
705 | if (active != listItems.size() - 1 && active + 8 > listItems.size()) { |
---|
706 | moveSelect( listItems.size() - 1 - active ); |
---|
707 | } else { |
---|
708 | moveSelect(8); |
---|
709 | } |
---|
710 | }, |
---|
711 | hide: function() { |
---|
712 | element && element.hide(); |
---|
713 | listItems && listItems.removeClass(CLASSES.ACTIVE); |
---|
714 | active = -1; |
---|
715 | }, |
---|
716 | visible : function() { |
---|
717 | return element && element.is(":visible"); |
---|
718 | }, |
---|
719 | current: function() { |
---|
720 | return this.visible() && (listItems.filter("." + CLASSES.ACTIVE)[0] || options.selectFirst && listItems[0]); |
---|
721 | }, |
---|
722 | show: function() { |
---|
723 | var offset = $(input).offset(); |
---|
724 | element.css({ |
---|
725 | width: typeof options.width == "string" || options.width > 0 ? options.width : $(input).width(), |
---|
726 | top: offset.top + input.offsetHeight, |
---|
727 | left: offset.left |
---|
728 | }).show(); |
---|
729 | if(options.scroll) { |
---|
730 | list.scrollTop(0); |
---|
731 | list.css({ |
---|
732 | maxHeight: options.scrollHeight, |
---|
733 | overflow: 'auto' |
---|
734 | }); |
---|
735 | |
---|
736 | if($.browser.msie && typeof document.body.style.maxHeight === "undefined") { |
---|
737 | var listHeight = 0; |
---|
738 | listItems.each(function() { |
---|
739 | listHeight += this.offsetHeight; |
---|
740 | }); |
---|
741 | var scrollbarsVisible = listHeight > options.scrollHeight; |
---|
742 | list.css('height', scrollbarsVisible ? options.scrollHeight : listHeight ); |
---|
743 | if (!scrollbarsVisible) { |
---|
744 | // IE doesn't recalculate width when scrollbar disappears |
---|
745 | listItems.width( list.width() - parseInt(listItems.css("padding-left")) - parseInt(listItems.css("padding-right")) ); |
---|
746 | } |
---|
747 | } |
---|
748 | |
---|
749 | } |
---|
750 | }, |
---|
751 | selected: function() { |
---|
752 | var selected = listItems && listItems.filter("." + CLASSES.ACTIVE).removeClass(CLASSES.ACTIVE); |
---|
753 | return selected && selected.length && $.data(selected[0], "ac_data"); |
---|
754 | }, |
---|
755 | emptyList: function (){ |
---|
756 | list && list.empty(); |
---|
757 | }, |
---|
758 | unbind: function() { |
---|
759 | element && element.remove(); |
---|
760 | } |
---|
761 | }; |
---|
762 | }; |
---|
763 | |
---|
764 | $.fn.selection = function(start, end) { |
---|
765 | if (start !== undefined) { |
---|
766 | return this.each(function() { |
---|
767 | if( this.createTextRange ){ |
---|
768 | var selRange = this.createTextRange(); |
---|
769 | if (end === undefined || start == end) { |
---|
770 | selRange.move("character", start); |
---|
771 | selRange.select(); |
---|
772 | } else { |
---|
773 | selRange.collapse(true); |
---|
774 | selRange.moveStart("character", start); |
---|
775 | selRange.moveEnd("character", end); |
---|
776 | selRange.select(); |
---|
777 | } |
---|
778 | } else if( this.setSelectionRange ){ |
---|
779 | this.setSelectionRange(start, end); |
---|
780 | } else if( this.selectionStart ){ |
---|
781 | this.selectionStart = start; |
---|
782 | this.selectionEnd = end; |
---|
783 | } |
---|
784 | }); |
---|
785 | } |
---|
786 | var field = this[0]; |
---|
787 | if ( field.createTextRange ) { |
---|
788 | var range = document.selection.createRange(), |
---|
789 | orig = field.value, |
---|
790 | teststring = "<->", |
---|
791 | textLength = range.text.length; |
---|
792 | range.text = teststring; |
---|
793 | var caretAt = field.value.indexOf(teststring); |
---|
794 | field.value = orig; |
---|
795 | this.selection(caretAt, caretAt + textLength); |
---|
796 | return { |
---|
797 | start: caretAt, |
---|
798 | end: caretAt + textLength |
---|
799 | } |
---|
800 | } else if( field.selectionStart !== undefined ){ |
---|
801 | return { |
---|
802 | start: field.selectionStart, |
---|
803 | end: field.selectionEnd |
---|
804 | } |
---|
805 | } |
---|
806 | }; |
---|
807 | |
---|
808 | })(jQuery); |
---|