1 | /* |
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2 | * jQuery Autocomplete plugin 1.2.3 |
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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 | * With small modifications by Alfonso Gómez-Arzola. |
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11 | * See changelog for details. |
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12 | * |
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13 | */ |
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14 | |
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15 | ;(function($) { |
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16 | |
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17 | $.fn.extend({ |
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18 | autocomplete: function(urlOrData, options) { |
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19 | var isUrl = typeof urlOrData == "string"; |
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20 | options = $.extend({}, $.Autocompleter.defaults, { |
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21 | url: isUrl ? urlOrData : null, |
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22 | data: isUrl ? null : urlOrData, |
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23 | delay: isUrl ? $.Autocompleter.defaults.delay : 10, |
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24 | max: options && !options.scroll ? 10 : 150, |
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25 | noRecord: "No Records." |
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26 | }, options); |
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27 | |
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28 | // if highlight is set to false, replace it with a do-nothing function |
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29 | options.highlight = options.highlight || function(value) { return value; }; |
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30 | |
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31 | // if the formatMatch option is not specified, then use formatItem for backwards compatibility |
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32 | options.formatMatch = options.formatMatch || options.formatItem; |
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33 | |
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34 | return this.each(function() { |
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35 | new $.Autocompleter(this, options); |
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36 | }); |
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37 | }, |
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38 | result: function(handler) { |
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39 | return this.bind("result", handler); |
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40 | }, |
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41 | search: function(handler) { |
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42 | return this.trigger("search", [handler]); |
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43 | }, |
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44 | flushCache: function() { |
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45 | return this.trigger("flushCache"); |
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46 | }, |
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47 | setOptions: function(options){ |
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48 | return this.trigger("setOptions", [options]); |
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49 | }, |
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50 | unautocomplete: function() { |
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51 | return this.trigger("unautocomplete"); |
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52 | } |
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53 | }); |
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54 | |
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55 | $.Autocompleter = function(input, options) { |
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56 | |
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57 | var KEY = { |
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58 | UP: 38, |
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59 | DOWN: 40, |
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60 | DEL: 46, |
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61 | TAB: 9, |
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62 | RETURN: 13, |
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63 | ESC: 27, |
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64 | COMMA: 188, |
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65 | PAGEUP: 33, |
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66 | PAGEDOWN: 34, |
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67 | BACKSPACE: 8 |
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68 | }; |
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69 | |
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70 | var globalFailure = null; |
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71 | if(options.failure != null && typeof options.failure == "function") { |
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72 | globalFailure = options.failure; |
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73 | } |
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74 | |
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75 | // Create $ object for input element |
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76 | var $input = $(input).attr("autocomplete", "off").addClass(options.inputClass); |
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77 | |
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78 | var timeout; |
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79 | var previousValue = ""; |
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80 | var cache = $.Autocompleter.Cache(options); |
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81 | var hasFocus = 0; |
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82 | var lastKeyPressCode; |
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83 | var config = { |
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84 | mouseDownOnSelect: false |
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85 | }; |
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86 | var select = $.Autocompleter.Select(options, input, selectCurrent, config); |
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87 | |
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88 | var blockSubmit; |
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89 | |
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90 | // prevent form submit in opera when selecting with return key |
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91 | navigator.userAgent.indexOf("Opera") != -1 && $(input.form).bind("submit.autocomplete", function() { |
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92 | if (blockSubmit) { |
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93 | blockSubmit = false; |
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94 | return false; |
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95 | } |
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96 | }); |
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97 | |
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98 | // older versions of opera don't trigger keydown multiple times while pressed, others don't work with keypress at all |
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99 | $input.bind((navigator.userAgent.indexOf("Opera") != -1 && !'KeyboardEvent' in window ? "keypress" : "keydown") + ".autocomplete", function(event) { |
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100 | // a keypress means the input has focus |
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101 | // avoids issue where input had focus before the autocomplete was applied |
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102 | hasFocus = 1; |
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103 | // track last key pressed |
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104 | lastKeyPressCode = event.keyCode; |
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105 | switch(event.keyCode) { |
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106 | |
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107 | case KEY.UP: |
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108 | if ( select.visible() ) { |
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109 | event.preventDefault(); |
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110 | select.prev(); |
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111 | } else { |
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112 | onChange(0, true); |
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113 | } |
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114 | break; |
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115 | |
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116 | case KEY.DOWN: |
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117 | if ( select.visible() ) { |
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118 | event.preventDefault(); |
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119 | select.next(); |
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120 | } else { |
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121 | onChange(0, true); |
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122 | } |
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123 | break; |
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124 | |
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125 | case KEY.PAGEUP: |
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126 | if ( select.visible() ) { |
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127 | event.preventDefault(); |
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128 | select.pageUp(); |
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129 | } else { |
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130 | onChange(0, true); |
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131 | } |
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132 | break; |
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133 | |
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134 | case KEY.PAGEDOWN: |
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135 | if ( select.visible() ) { |
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136 | event.preventDefault(); |
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137 | select.pageDown(); |
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138 | } else { |
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139 | onChange(0, true); |
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140 | } |
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141 | break; |
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142 | |
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143 | // matches also semicolon |
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144 | case options.multiple && $.trim(options.multipleSeparator) == "," && KEY.COMMA: |
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145 | case KEY.TAB: |
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146 | case KEY.RETURN: |
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147 | if( selectCurrent() ) { |
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148 | // stop default to prevent a form submit, Opera needs special handling |
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149 | event.preventDefault(); |
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150 | blockSubmit = true; |
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151 | return false; |
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152 | } |
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153 | break; |
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154 | |
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155 | case KEY.ESC: |
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156 | select.hide(); |
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157 | break; |
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158 | |
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159 | default: |
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160 | clearTimeout(timeout); |
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161 | timeout = setTimeout(onChange, options.delay); |
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162 | break; |
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163 | } |
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164 | }).focus(function(){ |
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165 | // track whether the field has focus, we shouldn't process any |
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166 | // results if the field no longer has focus |
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167 | hasFocus++; |
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168 | }).blur(function() { |
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169 | hasFocus = 0; |
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170 | if (!config.mouseDownOnSelect) { |
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171 | hideResults(); |
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172 | } |
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173 | }).click(function() { |
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174 | // show select when clicking in a focused field |
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175 | // but if clickFire is true, don't require field |
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176 | // to be focused to begin with; just show select |
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177 | if( options.clickFire ) { |
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178 | if ( !select.visible() ) { |
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179 | onChange(0, true); |
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180 | } |
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181 | } else { |
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182 | if ( hasFocus++ > 1 && !select.visible() ) { |
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183 | onChange(0, true); |
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184 | } |
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185 | } |
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186 | }).bind("search", function() { |
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187 | // TODO why not just specifying both arguments? |
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188 | var fn = (arguments.length > 1) ? arguments[1] : null; |
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189 | function findValueCallback(q, data) { |
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190 | var result; |
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191 | if( data && data.length ) { |
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192 | for (var i=0; i < data.length; i++) { |
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193 | if( data[i].result.toLowerCase() == q.toLowerCase() ) { |
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194 | result = data[i]; |
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195 | break; |
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196 | } |
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197 | } |
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198 | } |
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199 | if( typeof fn == "function" ) fn(result); |
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200 | else $input.trigger("result", result && [result.data, result.value]); |
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201 | } |
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202 | $.each(trimWords($input.val()), function(i, value) { |
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203 | request(value, findValueCallback, findValueCallback); |
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204 | }); |
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205 | }).bind("flushCache", function() { |
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206 | cache.flush(); |
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207 | }).bind("setOptions", function() { |
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208 | $.extend(true, options, arguments[1]); |
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209 | // if we've updated the data, repopulate |
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210 | if ( "data" in arguments[1] ) |
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211 | cache.populate(); |
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212 | }).bind("unautocomplete", function() { |
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213 | select.unbind(); |
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214 | $input.unbind(); |
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215 | $(input.form).unbind(".autocomplete"); |
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216 | }); |
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217 | |
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218 | |
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219 | function selectCurrent() { |
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220 | var selected = select.selected(); |
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221 | if( !selected ) |
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222 | return false; |
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223 | |
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224 | var v = selected.result; |
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225 | previousValue = v; |
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226 | |
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227 | if ( options.multiple ) { |
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228 | var words = trimWords($input.val()); |
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229 | if ( words.length > 1 ) { |
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230 | var seperator = options.multipleSeparator.length; |
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231 | var cursorAt = $(input).selection().start; |
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232 | var wordAt, progress = 0; |
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233 | $.each(words, function(i, word) { |
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234 | progress += word.length; |
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235 | if (cursorAt <= progress) { |
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236 | wordAt = i; |
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237 | return false; |
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238 | } |
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239 | progress += seperator; |
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240 | }); |
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241 | words[wordAt] = v; |
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242 | // TODO this should set the cursor to the right position, but it gets overriden somewhere |
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243 | //$.Autocompleter.Selection(input, progress + seperator, progress + seperator); |
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244 | v = words.join( options.multipleSeparator ); |
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245 | } |
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246 | v += options.multipleSeparator; |
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247 | } |
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248 | |
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249 | $input.val(v); |
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250 | hideResultsNow(); |
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251 | $input.trigger("result", [selected.data, selected.value]); |
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252 | return true; |
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253 | } |
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254 | |
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255 | function onChange(crap, skipPrevCheck) { |
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256 | if( lastKeyPressCode == KEY.DEL ) { |
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257 | select.hide(); |
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258 | return; |
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259 | } |
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260 | |
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261 | var currentValue = $input.val(); |
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262 | |
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263 | if ( !skipPrevCheck && currentValue == previousValue ) |
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264 | return; |
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265 | |
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266 | previousValue = currentValue; |
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267 | |
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268 | currentValue = lastWord(currentValue); |
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269 | if ( currentValue.length >= options.minChars) { |
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270 | $input.addClass(options.loadingClass); |
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271 | if (!options.matchCase) |
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272 | currentValue = currentValue.toLowerCase(); |
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273 | request(currentValue, receiveData, hideResultsNow); |
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274 | } else { |
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275 | stopLoading(); |
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276 | select.hide(); |
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277 | } |
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278 | }; |
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279 | |
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280 | function trimWords(value) { |
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281 | if (!value) |
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282 | return [""]; |
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283 | if (!options.multiple) |
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284 | return [$.trim(value)]; |
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285 | return $.map(value.split(options.multipleSeparator), function(word) { |
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286 | return $.trim(value).length ? $.trim(word) : null; |
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287 | }); |
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288 | } |
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289 | |
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290 | function lastWord(value) { |
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291 | if ( !options.multiple ) |
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292 | return value; |
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293 | var words = trimWords(value); |
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294 | if (words.length == 1) |
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295 | return words[0]; |
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296 | var cursorAt = $(input).selection().start; |
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297 | if (cursorAt == value.length) { |
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298 | words = trimWords(value) |
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299 | } else { |
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300 | words = trimWords(value.replace(value.substring(cursorAt), "")); |
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301 | } |
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302 | return words[words.length - 1]; |
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303 | } |
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304 | |
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305 | // fills in the input box w/the first match (assumed to be the best match) |
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306 | // q: the term entered |
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307 | // sValue: the first matching result |
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308 | function autoFill(q, sValue){ |
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309 | // autofill in the complete box w/the first match as long as the user hasn't entered in more data |
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310 | // if the last user key pressed was backspace, don't autofill |
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311 | if( options.autoFill && (lastWord($input.val()).toLowerCase() == q.toLowerCase()) && lastKeyPressCode != KEY.BACKSPACE ) { |
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312 | // fill in the value (keep the case the user has typed) |
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313 | $input.val($input.val() + sValue.substring(lastWord(previousValue).length)); |
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314 | // select the portion of the value not typed by the user (so the next character will erase) |
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315 | $(input).selection(previousValue.length, previousValue.length + sValue.length); |
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316 | } |
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317 | }; |
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318 | |
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319 | function hideResults() { |
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320 | clearTimeout(timeout); |
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321 | timeout = setTimeout(hideResultsNow, 200); |
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322 | }; |
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323 | |
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324 | function hideResultsNow() { |
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325 | var wasVisible = select.visible(); |
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326 | select.hide(); |
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327 | clearTimeout(timeout); |
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328 | stopLoading(); |
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329 | if (options.mustMatch) { |
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330 | // call search and run callback |
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331 | $input.search( |
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332 | function (result){ |
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333 | // if no value found, clear the input box |
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334 | if( !result ) { |
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335 | if (options.multiple) { |
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336 | var words = trimWords($input.val()).slice(0, -1); |
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337 | $input.val( words.join(options.multipleSeparator) + (words.length ? options.multipleSeparator : "") ); |
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338 | } |
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339 | else { |
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340 | $input.val( "" ); |
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341 | $input.trigger("result", null); |
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342 | } |
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343 | } |
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344 | } |
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345 | ); |
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346 | } |
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347 | }; |
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348 | |
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349 | function receiveData(q, data) { |
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350 | if ( data && data.length && hasFocus ) { |
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351 | stopLoading(); |
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352 | select.display(data, q); |
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353 | autoFill(q, data[0].value); |
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354 | select.show(); |
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355 | } else { |
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356 | hideResultsNow(); |
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357 | } |
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358 | }; |
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359 | |
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360 | function request(term, success, failure) { |
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361 | if (!options.matchCase) |
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362 | term = term.toLowerCase(); |
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363 | var data = cache.load(term); |
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364 | // recieve the cached data |
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365 | if (data) { |
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366 | if(data.length) { |
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367 | success(term, data); |
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368 | } |
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369 | else{ |
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370 | var parsed = options.parse && options.parse(options.noRecord) || parse(options.noRecord); |
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371 | success(term,parsed); |
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372 | } |
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373 | // if an AJAX url has been supplied, try loading the data now |
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374 | } else if( (typeof options.url == "string") && (options.url.length > 0) ){ |
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375 | |
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376 | var extraParams = { |
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377 | timestamp: +new Date() |
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378 | }; |
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379 | $.each(options.extraParams, function(key, param) { |
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380 | extraParams[key] = typeof param == "function" ? param() : param; |
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381 | }); |
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382 | |
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383 | $.ajax({ |
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384 | // try to leverage ajaxQueue plugin to abort previous requests |
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385 | mode: "abort", |
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386 | // limit abortion to this input |
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387 | port: "autocomplete" + input.name, |
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388 | dataType: options.dataType, |
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389 | url: options.url, |
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390 | data: $.extend({ |
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391 | q: lastWord(term), |
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392 | limit: options.max |
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393 | }, extraParams), |
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394 | success: function(data) { |
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395 | var parsed = options.parse && options.parse(data) || parse(data); |
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396 | cache.add(term, parsed); |
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397 | success(term, parsed); |
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398 | } |
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399 | }); |
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400 | } else { |
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401 | // 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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402 | select.emptyList(); |
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403 | if(globalFailure != null) { |
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404 | globalFailure(); |
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405 | } |
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406 | else { |
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407 | failure(term); |
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408 | } |
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409 | } |
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410 | }; |
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411 | |
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412 | function parse(data) { |
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413 | var parsed = []; |
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414 | var rows = data.split("\n"); |
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415 | for (var i=0; i < rows.length; i++) { |
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416 | var row = $.trim(rows[i]); |
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417 | if (row) { |
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418 | row = row.split("|"); |
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419 | parsed[parsed.length] = { |
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420 | data: row, |
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421 | value: row[0], |
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422 | result: options.formatResult && options.formatResult(row, row[0]) || row[0] |
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423 | }; |
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424 | } |
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425 | } |
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426 | return parsed; |
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427 | }; |
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428 | |
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429 | function stopLoading() { |
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430 | $input.removeClass(options.loadingClass); |
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431 | }; |
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432 | |
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433 | }; |
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434 | |
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435 | $.Autocompleter.defaults = { |
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436 | inputClass: "ac_input", |
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437 | resultsClass: "ac_results", |
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438 | loadingClass: "ac_loading", |
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439 | minChars: 1, |
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440 | delay: 400, |
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441 | matchCase: false, |
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442 | matchSubset: true, |
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443 | matchContains: false, |
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444 | cacheLength: 100, |
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445 | max: 1000, |
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446 | mustMatch: false, |
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447 | extraParams: {}, |
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448 | selectFirst: true, |
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449 | formatItem: function(row) { return row[0]; }, |
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450 | formatMatch: null, |
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451 | autoFill: false, |
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452 | width: 0, |
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453 | multiple: false, |
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454 | multipleSeparator: " ", |
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455 | inputFocus: true, |
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456 | clickFire: false, |
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457 | highlight: function(value, term) { |
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458 | return value.replace(new RegExp("(?![^&;]+;)(?!<[^<>]*)(" + term.replace(/([\^\$\(\)\[\]\{\}\*\.\+\?\|\\])/gi, "\\$1") + ")(?![^<>]*>)(?![^&;]+;)", "gi"), "<strong>$1</strong>"); |
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459 | }, |
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460 | scroll: true, |
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461 | scrollHeight: 180, |
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462 | scrollJumpPosition: true |
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463 | }; |
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464 | |
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465 | $.Autocompleter.Cache = function(options) { |
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466 | |
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467 | var data = {}; |
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468 | var length = 0; |
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469 | |
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470 | function matchSubset(s, sub) { |
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471 | if (!options.matchCase) |
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472 | s = s.toLowerCase(); |
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473 | var i = s.indexOf(sub); |
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474 | if (options.matchContains == "word"){ |
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475 | i = s.toLowerCase().search("\\b" + sub.toLowerCase()); |
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476 | } |
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477 | if (i == -1) return false; |
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478 | return i == 0 || options.matchContains; |
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479 | }; |
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480 | |
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481 | function add(q, value) { |
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482 | if (length > options.cacheLength){ |
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483 | flush(); |
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484 | } |
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485 | if (!data[q]){ |
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486 | length++; |
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487 | } |
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488 | data[q] = value; |
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489 | } |
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490 | |
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491 | function populate(){ |
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492 | if( !options.data ) return false; |
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493 | // track the matches |
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494 | var stMatchSets = {}, |
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495 | nullData = 0; |
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496 | |
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497 | // no url was specified, we need to adjust the cache length to make sure it fits the local data store |
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498 | if( !options.url ) options.cacheLength = 1; |
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499 | |
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500 | // track all options for minChars = 0 |
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501 | stMatchSets[""] = []; |
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502 | |
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503 | // loop through the array and create a lookup structure |
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504 | for ( var i = 0, ol = options.data.length; i < ol; i++ ) { |
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505 | var rawValue = options.data[i]; |
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506 | // if rawValue is a string, make an array otherwise just reference the array |
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507 | rawValue = (typeof rawValue == "string") ? [rawValue] : rawValue; |
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508 | |
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509 | var value = options.formatMatch(rawValue, i+1, options.data.length); |
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510 | if ( typeof(value) === 'undefined' || value === false ) |
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511 | continue; |
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512 | |
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513 | var firstChar = value.charAt(0).toLowerCase(); |
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514 | // if no lookup array for this character exists, look it up now |
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515 | if( !stMatchSets[firstChar] ) |
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516 | stMatchSets[firstChar] = []; |
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517 | |
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518 | // if the match is a string |
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519 | var row = { |
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520 | value: value, |
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521 | data: rawValue, |
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522 | result: options.formatResult && options.formatResult(rawValue) || value |
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523 | }; |
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524 | |
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525 | // push the current match into the set list |
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526 | stMatchSets[firstChar].push(row); |
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527 | |
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528 | // keep track of minChars zero items |
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529 | if ( nullData++ < options.max ) { |
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530 | stMatchSets[""].push(row); |
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531 | } |
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532 | }; |
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533 | |
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534 | // add the data items to the cache |
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535 | $.each(stMatchSets, function(i, value) { |
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536 | // increase the cache size |
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537 | options.cacheLength++; |
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538 | // add to the cache |
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539 | add(i, value); |
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540 | }); |
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541 | } |
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542 | |
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543 | // populate any existing data |
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544 | setTimeout(populate, 25); |
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545 | |
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546 | function flush(){ |
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547 | data = {}; |
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548 | length = 0; |
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549 | } |
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550 | |
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551 | return { |
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552 | flush: flush, |
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553 | add: add, |
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554 | populate: populate, |
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555 | load: function(q) { |
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556 | if (!options.cacheLength || !length) |
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557 | return null; |
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558 | /* |
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559 | * if dealing w/local data and matchContains than we must make sure |
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560 | * to loop through all the data collections looking for matches |
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561 | */ |
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562 | if( !options.url && options.matchContains ){ |
---|
563 | // track all matches |
---|
564 | var csub = []; |
---|
565 | // loop through all the data grids for matches |
---|
566 | for( var k in data ){ |
---|
567 | // don't search through the stMatchSets[""] (minChars: 0) cache |
---|
568 | // this prevents duplicates |
---|
569 | if( k.length > 0 ){ |
---|
570 | var c = data[k]; |
---|
571 | $.each(c, function(i, x) { |
---|
572 | // if we've got a match, add it to the array |
---|
573 | if (matchSubset(x.value, q)) { |
---|
574 | csub.push(x); |
---|
575 | } |
---|
576 | }); |
---|
577 | } |
---|
578 | } |
---|
579 | return csub; |
---|
580 | } else |
---|
581 | // if the exact item exists, use it |
---|
582 | if (data[q]){ |
---|
583 | return data[q]; |
---|
584 | } else |
---|
585 | if (options.matchSubset) { |
---|
586 | for (var i = q.length - 1; i >= options.minChars; i--) { |
---|
587 | var c = data[q.substr(0, i)]; |
---|
588 | if (c) { |
---|
589 | var csub = []; |
---|
590 | $.each(c, function(i, x) { |
---|
591 | if (matchSubset(x.value, q)) { |
---|
592 | csub[csub.length] = x; |
---|
593 | } |
---|
594 | }); |
---|
595 | return csub; |
---|
596 | } |
---|
597 | } |
---|
598 | } |
---|
599 | return null; |
---|
600 | } |
---|
601 | }; |
---|
602 | }; |
---|
603 | |
---|
604 | $.Autocompleter.Select = function (options, input, select, config) { |
---|
605 | var CLASSES = { |
---|
606 | ACTIVE: "ac_over" |
---|
607 | }; |
---|
608 | |
---|
609 | var listItems, |
---|
610 | active = -1, |
---|
611 | data, |
---|
612 | term = "", |
---|
613 | needsInit = true, |
---|
614 | element, |
---|
615 | list; |
---|
616 | |
---|
617 | // Create results |
---|
618 | function init() { |
---|
619 | if (!needsInit) |
---|
620 | return; |
---|
621 | element = $("<div/>") |
---|
622 | .hide() |
---|
623 | .addClass(options.resultsClass) |
---|
624 | .css("position", "absolute") |
---|
625 | .appendTo(document.body) |
---|
626 | .hover(function(event) { |
---|
627 | // Browsers except FF do not fire mouseup event on scrollbars, resulting in mouseDownOnSelect remaining true, and results list not always hiding. |
---|
628 | if($(this).is(":visible")) { |
---|
629 | input.focus(); |
---|
630 | } |
---|
631 | config.mouseDownOnSelect = false; |
---|
632 | }); |
---|
633 | |
---|
634 | list = $("<ul/>").appendTo(element).mouseover( function(event) { |
---|
635 | if(target(event).nodeName && target(event).nodeName.toUpperCase() == 'LI') { |
---|
636 | active = $("li", list).removeClass(CLASSES.ACTIVE).index(target(event)); |
---|
637 | $(target(event)).addClass(CLASSES.ACTIVE); |
---|
638 | } |
---|
639 | }).click(function(event) { |
---|
640 | $(target(event)).addClass(CLASSES.ACTIVE); |
---|
641 | select(); |
---|
642 | if( options.inputFocus ) |
---|
643 | input.focus(); |
---|
644 | return false; |
---|
645 | }).mousedown(function() { |
---|
646 | config.mouseDownOnSelect = true; |
---|
647 | }).mouseup(function() { |
---|
648 | config.mouseDownOnSelect = false; |
---|
649 | }); |
---|
650 | |
---|
651 | if( options.width > 0 ) |
---|
652 | element.css("width", options.width); |
---|
653 | |
---|
654 | needsInit = false; |
---|
655 | } |
---|
656 | |
---|
657 | function target(event) { |
---|
658 | var element = event.target; |
---|
659 | while(element && element.tagName != "LI") |
---|
660 | element = element.parentNode; |
---|
661 | // more fun with IE, sometimes event.target is empty, just ignore it then |
---|
662 | if(!element) |
---|
663 | return []; |
---|
664 | return element; |
---|
665 | } |
---|
666 | |
---|
667 | function moveSelect(step) { |
---|
668 | listItems.slice(active, active + 1).removeClass(CLASSES.ACTIVE); |
---|
669 | movePosition(step); |
---|
670 | var activeItem = listItems.slice(active, active + 1).addClass(CLASSES.ACTIVE); |
---|
671 | if(options.scroll) { |
---|
672 | var offset = 0; |
---|
673 | listItems.slice(0, active).each(function() { |
---|
674 | offset += this.offsetHeight; |
---|
675 | }); |
---|
676 | if((offset + activeItem[0].offsetHeight - list.scrollTop()) > list[0].clientHeight) { |
---|
677 | list.scrollTop(offset + activeItem[0].offsetHeight - list.innerHeight()); |
---|
678 | } else if(offset < list.scrollTop()) { |
---|
679 | list.scrollTop(offset); |
---|
680 | } |
---|
681 | } |
---|
682 | }; |
---|
683 | |
---|
684 | function movePosition(step) { |
---|
685 | if (options.scrollJumpPosition || (!options.scrollJumpPosition && !((step < 0 && active == 0) || (step > 0 && active == listItems.size() - 1)) )) { |
---|
686 | active += step; |
---|
687 | if (active < 0) { |
---|
688 | active = listItems.size() - 1; |
---|
689 | } else if (active >= listItems.size()) { |
---|
690 | active = 0; |
---|
691 | } |
---|
692 | } |
---|
693 | } |
---|
694 | |
---|
695 | |
---|
696 | function limitNumberOfItems(available) { |
---|
697 | return options.max && options.max < available |
---|
698 | ? options.max |
---|
699 | : available; |
---|
700 | } |
---|
701 | |
---|
702 | function fillList() { |
---|
703 | list.empty(); |
---|
704 | var max = limitNumberOfItems(data.length); |
---|
705 | for (var i=0; i < max; i++) { |
---|
706 | if (!data[i]) |
---|
707 | continue; |
---|
708 | var formatted = options.formatItem(data[i].data, i+1, max, data[i].value, term); |
---|
709 | if ( formatted === false ) |
---|
710 | continue; |
---|
711 | var li = $("<li/>").html( options.highlight(formatted, term) ).addClass(i%2 == 0 ? "ac_even" : "ac_odd").appendTo(list)[0]; |
---|
712 | $.data(li, "ac_data", data[i]); |
---|
713 | } |
---|
714 | listItems = list.find("li"); |
---|
715 | if ( options.selectFirst ) { |
---|
716 | listItems.slice(0, 1).addClass(CLASSES.ACTIVE); |
---|
717 | active = 0; |
---|
718 | } |
---|
719 | // apply bgiframe if available |
---|
720 | if ( $.fn.bgiframe ) |
---|
721 | list.bgiframe(); |
---|
722 | } |
---|
723 | |
---|
724 | return { |
---|
725 | display: function(d, q) { |
---|
726 | init(); |
---|
727 | data = d; |
---|
728 | term = q; |
---|
729 | fillList(); |
---|
730 | }, |
---|
731 | next: function() { |
---|
732 | moveSelect(1); |
---|
733 | }, |
---|
734 | prev: function() { |
---|
735 | moveSelect(-1); |
---|
736 | }, |
---|
737 | pageUp: function() { |
---|
738 | if (active != 0 && active - 8 < 0) { |
---|
739 | moveSelect( -active ); |
---|
740 | } else { |
---|
741 | moveSelect(-8); |
---|
742 | } |
---|
743 | }, |
---|
744 | pageDown: function() { |
---|
745 | if (active != listItems.size() - 1 && active + 8 > listItems.size()) { |
---|
746 | moveSelect( listItems.size() - 1 - active ); |
---|
747 | } else { |
---|
748 | moveSelect(8); |
---|
749 | } |
---|
750 | }, |
---|
751 | hide: function() { |
---|
752 | element && element.hide(); |
---|
753 | listItems && listItems.removeClass(CLASSES.ACTIVE); |
---|
754 | active = -1; |
---|
755 | }, |
---|
756 | visible : function() { |
---|
757 | return element && element.is(":visible"); |
---|
758 | }, |
---|
759 | current: function() { |
---|
760 | return this.visible() && (listItems.filter("." + CLASSES.ACTIVE)[0] || options.selectFirst && listItems[0]); |
---|
761 | }, |
---|
762 | show: function() { |
---|
763 | var offset = $(input).offset(); |
---|
764 | element.css({ |
---|
765 | width: typeof options.width == "string" || options.width > 0 ? options.width : $(input).width(), |
---|
766 | top: offset.top + input.offsetHeight, |
---|
767 | left: offset.left |
---|
768 | }).show(); |
---|
769 | if(options.scroll) { |
---|
770 | list.scrollTop(0); |
---|
771 | list.css({ |
---|
772 | maxHeight: options.scrollHeight, |
---|
773 | overflow: 'auto' |
---|
774 | }); |
---|
775 | |
---|
776 | if(navigator.userAgent.indexOf("MSIE") != -1 && typeof document.body.style.maxHeight === "undefined") { |
---|
777 | var listHeight = 0; |
---|
778 | listItems.each(function() { |
---|
779 | listHeight += this.offsetHeight; |
---|
780 | }); |
---|
781 | var scrollbarsVisible = listHeight > options.scrollHeight; |
---|
782 | list.css('height', scrollbarsVisible ? options.scrollHeight : listHeight ); |
---|
783 | if (!scrollbarsVisible) { |
---|
784 | // IE doesn't recalculate width when scrollbar disappears |
---|
785 | listItems.width( list.width() - parseInt(listItems.css("padding-left")) - parseInt(listItems.css("padding-right")) ); |
---|
786 | } |
---|
787 | } |
---|
788 | |
---|
789 | } |
---|
790 | }, |
---|
791 | selected: function() { |
---|
792 | var selected = listItems && listItems.filter("." + CLASSES.ACTIVE).removeClass(CLASSES.ACTIVE); |
---|
793 | return selected && selected.length && $.data(selected[0], "ac_data"); |
---|
794 | }, |
---|
795 | emptyList: function (){ |
---|
796 | list && list.empty(); |
---|
797 | }, |
---|
798 | unbind: function() { |
---|
799 | element && element.remove(); |
---|
800 | } |
---|
801 | }; |
---|
802 | }; |
---|
803 | |
---|
804 | $.fn.selection = function(start, end) { |
---|
805 | if (start !== undefined) { |
---|
806 | return this.each(function() { |
---|
807 | if( this.createTextRange ){ |
---|
808 | var selRange = this.createTextRange(); |
---|
809 | if (end === undefined || start == end) { |
---|
810 | selRange.move("character", start); |
---|
811 | selRange.select(); |
---|
812 | } else { |
---|
813 | selRange.collapse(true); |
---|
814 | selRange.moveStart("character", start); |
---|
815 | selRange.moveEnd("character", end); |
---|
816 | selRange.select(); |
---|
817 | } |
---|
818 | } else if( this.setSelectionRange ){ |
---|
819 | this.setSelectionRange(start, end); |
---|
820 | } else if( this.selectionStart ){ |
---|
821 | this.selectionStart = start; |
---|
822 | this.selectionEnd = end; |
---|
823 | } |
---|
824 | }); |
---|
825 | } |
---|
826 | var field = this[0]; |
---|
827 | if ( field.createTextRange ) { |
---|
828 | var range = document.selection.createRange(), |
---|
829 | orig = field.value, |
---|
830 | teststring = "<->", |
---|
831 | textLength = range.text.length; |
---|
832 | range.text = teststring; |
---|
833 | var caretAt = field.value.indexOf(teststring); |
---|
834 | field.value = orig; |
---|
835 | this.selection(caretAt, caretAt + textLength); |
---|
836 | return { |
---|
837 | start: caretAt, |
---|
838 | end: caretAt + textLength |
---|
839 | } |
---|
840 | } else if( field.selectionStart !== undefined ){ |
---|
841 | return { |
---|
842 | start: field.selectionStart, |
---|
843 | end: field.selectionEnd |
---|
844 | } |
---|
845 | } |
---|
846 | }; |
---|
847 | |
---|
848 | })(jQuery); |
---|