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0
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1 /*
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2 * jQuery UI Autocomplete 1.8.11
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3 *
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4 * Copyright 2011, AUTHORS.txt (http://jqueryui.com/about)
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5 * Dual licensed under the MIT or GPL Version 2 licenses.
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6 * http://jquery.org/license
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7 *
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8 * http://docs.jquery.com/UI/Autocomplete
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9 *
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10 * Depends:
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11 * jquery.ui.core.js
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12 * jquery.ui.widget.js
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13 * jquery.ui.position.js
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14 */
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15 (function( $, undefined ) {
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16
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17 // used to prevent race conditions with remote data sources
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18 var requestIndex = 0;
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19
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20 $.widget( "ui.autocomplete", {
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21 options: {
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22 appendTo: "body",
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23 autoFocus: false,
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24 delay: 300,
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25 minLength: 1,
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26 position: {
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27 my: "left top",
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28 at: "left bottom",
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29 collision: "none"
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30 },
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31 source: null
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32 },
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33
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34 pending: 0,
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35
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36 _create: function() {
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37 var self = this,
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38 doc = this.element[ 0 ].ownerDocument,
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39 suppressKeyPress;
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40
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41 this.element
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42 .addClass( "ui-autocomplete-input" )
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43 .attr( "autocomplete", "off" )
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44 // TODO verify these actually work as intended
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45 .attr({
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46 role: "textbox",
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47 "aria-autocomplete": "list",
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48 "aria-haspopup": "true"
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49 })
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50 .bind( "keydown.autocomplete", function( event ) {
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51 if ( self.options.disabled || self.element.attr( "readonly" ) ) {
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52 return;
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53 }
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54
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55 suppressKeyPress = false;
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56 var keyCode = $.ui.keyCode;
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57 switch( event.keyCode ) {
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58 case keyCode.PAGE_UP:
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59 self._move( "previousPage", event );
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60 break;
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61 case keyCode.PAGE_DOWN:
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62 self._move( "nextPage", event );
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63 break;
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64 case keyCode.UP:
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65 self._move( "previous", event );
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66 // prevent moving cursor to beginning of text field in some browsers
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67 event.preventDefault();
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68 break;
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69 case keyCode.DOWN:
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70 self._move( "next", event );
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71 // prevent moving cursor to end of text field in some browsers
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72 event.preventDefault();
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73 break;
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74 case keyCode.ENTER:
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75 case keyCode.NUMPAD_ENTER:
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76 // when menu is open and has focus
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77 if ( self.menu.active ) {
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78 // #6055 - Opera still allows the keypress to occur
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79 // which causes forms to submit
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80 suppressKeyPress = true;
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81 event.preventDefault();
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82 }
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83 //passthrough - ENTER and TAB both select the current element
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84 case keyCode.TAB:
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85 if ( !self.menu.active ) {
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86 return;
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87 }
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88 self.menu.select( event );
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89 break;
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90 case keyCode.ESCAPE:
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91 self.element.val( self.term );
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92 self.close( event );
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93 break;
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94 default:
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95 // keypress is triggered before the input value is changed
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96 clearTimeout( self.searching );
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97 self.searching = setTimeout(function() {
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98 // only search if the value has changed
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99 if ( self.term != self.element.val() ) {
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100 self.selectedItem = null;
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101 self.search( null, event );
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102 }
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103 }, self.options.delay );
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104 break;
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105 }
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106 })
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107 .bind( "keypress.autocomplete", function( event ) {
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108 if ( suppressKeyPress ) {
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109 suppressKeyPress = false;
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110 event.preventDefault();
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111 }
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112 })
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113 .bind( "focus.autocomplete", function() {
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114 if ( self.options.disabled ) {
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115 return;
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116 }
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117
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118 self.selectedItem = null;
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119 self.previous = self.element.val();
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120 })
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121 .bind( "blur.autocomplete", function( event ) {
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122 if ( self.options.disabled ) {
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123 return;
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124 }
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125
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126 clearTimeout( self.searching );
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127 // clicks on the menu (or a button to trigger a search) will cause a blur event
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128 self.closing = setTimeout(function() {
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129 self.close( event );
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130 self._change( event );
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131 }, 150 );
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132 });
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133 this._initSource();
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134 this.response = function() {
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135 return self._response.apply( self, arguments );
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136 };
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137 this.menu = $( "<ul></ul>" )
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138 .addClass( "ui-autocomplete" )
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139 .appendTo( $( this.options.appendTo || "body", doc )[0] )
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140 // prevent the close-on-blur in case of a "slow" click on the menu (long mousedown)
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141 .mousedown(function( event ) {
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142 // clicking on the scrollbar causes focus to shift to the body
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143 // but we can't detect a mouseup or a click immediately afterward
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144 // so we have to track the next mousedown and close the menu if
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145 // the user clicks somewhere outside of the autocomplete
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146 var menuElement = self.menu.element[ 0 ];
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147 if ( !$( event.target ).closest( ".ui-menu-item" ).length ) {
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148 setTimeout(function() {
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149 $( document ).one( 'mousedown', function( event ) {
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150 if ( event.target !== self.element[ 0 ] &&
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151 event.target !== menuElement &&
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152 !$.ui.contains( menuElement, event.target ) ) {
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153 self.close();
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154 }
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155 });
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156 }, 1 );
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157 }
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158
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159 // use another timeout to make sure the blur-event-handler on the input was already triggered
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160 setTimeout(function() {
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161 clearTimeout( self.closing );
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162 }, 13);
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163 })
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164 .menu({
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165 focus: function( event, ui ) {
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166 var item = ui.item.data( "item.autocomplete" );
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167 if ( false !== self._trigger( "focus", event, { item: item } ) ) {
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168 // use value to match what will end up in the input, if it was a key event
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169 if ( /^key/.test(event.originalEvent.type) ) {
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170 self.element.val( item.value );
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171 }
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172 }
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173 },
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174 selected: function( event, ui ) {
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175 var item = ui.item.data( "item.autocomplete" ),
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176 previous = self.previous;
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177
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178 // only trigger when focus was lost (click on menu)
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179 if ( self.element[0] !== doc.activeElement ) {
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180 self.element.focus();
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181 self.previous = previous;
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182 // #6109 - IE triggers two focus events and the second
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183 // is asynchronous, so we need to reset the previous
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184 // term synchronously and asynchronously :-(
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185 setTimeout(function() {
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186 self.previous = previous;
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187 self.selectedItem = item;
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188 }, 1);
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189 }
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190
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191 if ( false !== self._trigger( "select", event, { item: item } ) ) {
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192 self.element.val( item.value );
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193 }
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194 // reset the term after the select event
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195 // this allows custom select handling to work properly
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196 self.term = self.element.val();
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197
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198 self.close( event );
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199 self.selectedItem = item;
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200 },
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201 blur: function( event, ui ) {
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202 // don't set the value of the text field if it's already correct
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203 // this prevents moving the cursor unnecessarily
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204 if ( self.menu.element.is(":visible") &&
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205 ( self.element.val() !== self.term ) ) {
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206 self.element.val( self.term );
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207 }
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208 }
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209 })
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210 .zIndex( this.element.zIndex() + 1 )
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211 // workaround for jQuery bug #5781 http://dev.jquery.com/ticket/5781
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212 .css({ top: 0, left: 0 })
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213 .hide()
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214 .data( "menu" );
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215 if ( $.fn.bgiframe ) {
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216 this.menu.element.bgiframe();
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217 }
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218 },
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219
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220 destroy: function() {
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221 this.element
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222 .removeClass( "ui-autocomplete-input" )
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223 .removeAttr( "autocomplete" )
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224 .removeAttr( "role" )
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225 .removeAttr( "aria-autocomplete" )
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226 .removeAttr( "aria-haspopup" );
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227 this.menu.element.remove();
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228 $.Widget.prototype.destroy.call( this );
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229 },
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230
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231 _setOption: function( key, value ) {
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232 $.Widget.prototype._setOption.apply( this, arguments );
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233 if ( key === "source" ) {
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234 this._initSource();
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235 }
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236 if ( key === "appendTo" ) {
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237 this.menu.element.appendTo( $( value || "body", this.element[0].ownerDocument )[0] )
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238 }
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239 if ( key === "disabled" && value && this.xhr ) {
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240 this.xhr.abort();
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241 }
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242 },
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243
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244 _initSource: function() {
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245 var self = this,
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246 array,
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247 url;
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248 if ( $.isArray(this.options.source) ) {
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249 array = this.options.source;
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250 this.source = function( request, response ) {
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251 response( $.ui.autocomplete.filter(array, request.term) );
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252 };
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253 } else if ( typeof this.options.source === "string" ) {
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254 url = this.options.source;
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255 this.source = function( request, response ) {
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256 if ( self.xhr ) {
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257 self.xhr.abort();
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258 }
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259 self.xhr = $.ajax({
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260 url: url,
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261 data: request,
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262 dataType: "json",
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263 autocompleteRequest: ++requestIndex,
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264 success: function( data, status ) {
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265 if ( this.autocompleteRequest === requestIndex ) {
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266 response( data );
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267 }
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268 },
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269 error: function() {
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270 if ( this.autocompleteRequest === requestIndex ) {
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271 response( [] );
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272 }
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273 }
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274 });
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275 };
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276 } else {
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277 this.source = this.options.source;
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278 }
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279 },
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280
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281 search: function( value, event ) {
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282 value = value != null ? value : this.element.val();
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283
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284 // always save the actual value, not the one passed as an argument
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285 this.term = this.element.val();
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286
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287 if ( value.length < this.options.minLength ) {
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288 return this.close( event );
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289 }
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290
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291 clearTimeout( this.closing );
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292 if ( this._trigger( "search", event ) === false ) {
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293 return;
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294 }
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295
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296 return this._search( value );
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297 },
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298
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299 _search: function( value ) {
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300 this.pending++;
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301 this.element.addClass( "ui-autocomplete-loading" );
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302
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303 this.source( { term: value }, this.response );
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304 },
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305
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306 _response: function( content ) {
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307 if ( !this.options.disabled && content && content.length ) {
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308 content = this._normalize( content );
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309 this._suggest( content );
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310 this._trigger( "open" );
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311 } else {
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312 this.close();
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313 }
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314 this.pending--;
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315 if ( !this.pending ) {
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316 this.element.removeClass( "ui-autocomplete-loading" );
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317 }
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318 },
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319
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320 close: function( event ) {
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321 clearTimeout( this.closing );
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322 if ( this.menu.element.is(":visible") ) {
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323 this.menu.element.hide();
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324 this.menu.deactivate();
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325 this._trigger( "close", event );
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326 }
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327 },
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328
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329 _change: function( event ) {
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330 if ( this.previous !== this.element.val() ) {
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331 this._trigger( "change", event, { item: this.selectedItem } );
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332 }
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333 },
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334
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335 _normalize: function( items ) {
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336 // assume all items have the right format when the first item is complete
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337 if ( items.length && items[0].label && items[0].value ) {
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338 return items;
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339 }
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340 return $.map( items, function(item) {
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341 if ( typeof item === "string" ) {
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342 return {
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343 label: item,
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344 value: item
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345 };
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346 }
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347 return $.extend({
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348 label: item.label || item.value,
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349 value: item.value || item.label
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350 }, item );
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351 });
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352 },
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353
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354 _suggest: function( items ) {
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355 var ul = this.menu.element
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356 .empty()
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357 .zIndex( this.element.zIndex() + 1 );
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358 this._renderMenu( ul, items );
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359 // TODO refresh should check if the active item is still in the dom, removing the need for a manual deactivate
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360 this.menu.deactivate();
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361 this.menu.refresh();
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362
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363 // size and position menu
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364 ul.show();
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365 this._resizeMenu();
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366 ul.position( $.extend({
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367 of: this.element
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368 }, this.options.position ));
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369
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370 if ( this.options.autoFocus ) {
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371 this.menu.next( new $.Event("mouseover") );
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372 }
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373 },
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374
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375 _resizeMenu: function() {
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376 var ul = this.menu.element;
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377 ul.outerWidth( Math.max(
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378 ul.width( "" ).outerWidth(),
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379 this.element.outerWidth()
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380 ) );
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381 },
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382
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383 _renderMenu: function( ul, items ) {
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384 var self = this;
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385 $.each( items, function( index, item ) {
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386 self._renderItem( ul, item );
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387 });
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388 },
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389
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390 _renderItem: function( ul, item) {
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391 return $( "<li></li>" )
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392 .data( "item.autocomplete", item )
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393 .append( $( "<a></a>" ).text( item.label ) )
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394 .appendTo( ul );
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395 },
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396
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397 _move: function( direction, event ) {
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398 if ( !this.menu.element.is(":visible") ) {
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399 this.search( null, event );
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400 return;
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401 }
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402 if ( this.menu.first() && /^previous/.test(direction) ||
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403 this.menu.last() && /^next/.test(direction) ) {
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404 this.element.val( this.term );
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405 this.menu.deactivate();
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406 return;
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407 }
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408 this.menu[ direction ]( event );
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409 },
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410
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411 widget: function() {
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412 return this.menu.element;
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413 }
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414 });
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415
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416 $.extend( $.ui.autocomplete, {
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417 escapeRegex: function( value ) {
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418 return value.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
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419 },
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420 filter: function(array, term) {
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421 var matcher = new RegExp( $.ui.autocomplete.escapeRegex(term), "i" );
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422 return $.grep( array, function(value) {
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423 return matcher.test( value.label || value.value || value );
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424 });
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425 }
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426 });
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427
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428 }( jQuery ));
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429
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430 /*
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431 * jQuery UI Menu (not officially released)
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432 *
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433 * This widget isn't yet finished and the API is subject to change. We plan to finish
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434 * it for the next release. You're welcome to give it a try anyway and give us feedback,
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435 * as long as you're okay with migrating your code later on. We can help with that, too.
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436 *
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437 * Copyright 2010, AUTHORS.txt (http://jqueryui.com/about)
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438 * Dual licensed under the MIT or GPL Version 2 licenses.
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439 * http://jquery.org/license
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440 *
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441 * http://docs.jquery.com/UI/Menu
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442 *
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443 * Depends:
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444 * jquery.ui.core.js
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445 * jquery.ui.widget.js
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446 */
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447 (function($) {
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448
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449 $.widget("ui.menu", {
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450 _create: function() {
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451 var self = this;
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452 this.element
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453 .addClass("ui-menu ui-widget ui-widget-content ui-corner-all")
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454 .attr({
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455 role: "listbox",
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456 "aria-activedescendant": "ui-active-menuitem"
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457 })
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458 .click(function( event ) {
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459 if ( !$( event.target ).closest( ".ui-menu-item a" ).length ) {
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460 return;
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461 }
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462 // temporary
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463 event.preventDefault();
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464 self.select( event );
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465 });
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466 this.refresh();
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467 },
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468
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469 refresh: function() {
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470 var self = this;
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471
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472 // don't refresh list items that are already adapted
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473 var items = this.element.children("li:not(.ui-menu-item):has(a)")
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474 .addClass("ui-menu-item")
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475 .attr("role", "menuitem");
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476
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477 items.children("a")
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478 .addClass("ui-corner-all")
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479 .attr("tabindex", -1)
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480 // mouseenter doesn't work with event delegation
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481 .mouseenter(function( event ) {
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482 self.activate( event, $(this).parent() );
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483 })
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484 .mouseleave(function() {
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485 self.deactivate();
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486 });
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487 },
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488
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489 activate: function( event, item ) {
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490 this.deactivate();
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491 if (this.hasScroll()) {
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492 var offset = item.offset().top - this.element.offset().top,
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493 scroll = this.element.attr("scrollTop"),
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494 elementHeight = this.element.height();
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495 if (offset < 0) {
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496 this.element.attr("scrollTop", scroll + offset);
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497 } else if (offset >= elementHeight) {
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498 this.element.attr("scrollTop", scroll + offset - elementHeight + item.height());
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499 }
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500 }
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501 this.active = item.eq(0)
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502 .children("a")
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503 .addClass("ui-state-hover")
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504 .attr("id", "ui-active-menuitem")
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505 .end();
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506 this._trigger("focus", event, { item: item });
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507 },
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508
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509 deactivate: function() {
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510 if (!this.active) { return; }
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511
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512 this.active.children("a")
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513 .removeClass("ui-state-hover")
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514 .removeAttr("id");
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515 this._trigger("blur");
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516 this.active = null;
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517 },
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518
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519 next: function(event) {
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520 this.move("next", ".ui-menu-item:first", event);
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521 },
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522
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523 previous: function(event) {
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524 this.move("prev", ".ui-menu-item:last", event);
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525 },
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526
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527 first: function() {
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528 return this.active && !this.active.prevAll(".ui-menu-item").length;
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529 },
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530
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531 last: function() {
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532 return this.active && !this.active.nextAll(".ui-menu-item").length;
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533 },
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534
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535 move: function(direction, edge, event) {
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536 if (!this.active) {
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537 this.activate(event, this.element.children(edge));
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538 return;
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539 }
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540 var next = this.active[direction + "All"](".ui-menu-item").eq(0);
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541 if (next.length) {
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542 this.activate(event, next);
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543 } else {
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544 this.activate(event, this.element.children(edge));
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545 }
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546 },
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547
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548 // TODO merge with previousPage
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549 nextPage: function(event) {
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550 if (this.hasScroll()) {
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551 // TODO merge with no-scroll-else
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552 if (!this.active || this.last()) {
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553 this.activate(event, this.element.children(".ui-menu-item:first"));
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554 return;
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555 }
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556 var base = this.active.offset().top,
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557 height = this.element.height(),
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558 result = this.element.children(".ui-menu-item").filter(function() {
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559 var close = $(this).offset().top - base - height + $(this).height();
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560 // TODO improve approximation
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561 return close < 10 && close > -10;
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562 });
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563
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564 // TODO try to catch this earlier when scrollTop indicates the last page anyway
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565 if (!result.length) {
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566 result = this.element.children(".ui-menu-item:last");
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567 }
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568 this.activate(event, result);
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569 } else {
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570 this.activate(event, this.element.children(".ui-menu-item")
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571 .filter(!this.active || this.last() ? ":first" : ":last"));
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572 }
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573 },
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574
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575 // TODO merge with nextPage
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576 previousPage: function(event) {
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577 if (this.hasScroll()) {
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578 // TODO merge with no-scroll-else
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579 if (!this.active || this.first()) {
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580 this.activate(event, this.element.children(".ui-menu-item:last"));
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581 return;
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582 }
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583
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584 var base = this.active.offset().top,
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585 height = this.element.height();
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586 result = this.element.children(".ui-menu-item").filter(function() {
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587 var close = $(this).offset().top - base + height - $(this).height();
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588 // TODO improve approximation
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589 return close < 10 && close > -10;
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590 });
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591
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592 // TODO try to catch this earlier when scrollTop indicates the last page anyway
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593 if (!result.length) {
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594 result = this.element.children(".ui-menu-item:first");
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595 }
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596 this.activate(event, result);
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597 } else {
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598 this.activate(event, this.element.children(".ui-menu-item")
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599 .filter(!this.active || this.first() ? ":last" : ":first"));
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600 }
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601 },
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602
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603 hasScroll: function() {
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604 return this.element.height() < this.element.attr("scrollHeight");
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605 },
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606
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607 select: function( event ) {
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608 this._trigger("selected", event, { item: this.active });
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609 }
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610 });
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611
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612 }(jQuery));
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