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1 /*!
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2 * jQuery UI Menu 1.10.4
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3 * http://jqueryui.com
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4 *
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5 * Copyright 2014 jQuery Foundation and other contributors
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6 * Released under the MIT license.
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7 * http://jquery.org/license
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8 *
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9 * http://api.jqueryui.com/menu/
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10 *
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11 * Depends:
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12 * jquery.ui.core.js
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13 * jquery.ui.widget.js
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14 * jquery.ui.position.js
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15 */
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16 (function( $, undefined ) {
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17
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18 $.widget( "ui.menu", {
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19 version: "1.10.4",
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20 defaultElement: "<ul>",
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21 delay: 300,
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22 options: {
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23 icons: {
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24 submenu: "ui-icon-carat-1-e"
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25 },
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26 menus: "ul",
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27 position: {
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28 my: "left top",
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29 at: "right top"
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30 },
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31 role: "menu",
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32
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33 // callbacks
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34 blur: null,
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35 focus: null,
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36 select: null
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37 },
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38
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39 _create: function() {
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40 this.activeMenu = this.element;
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41 // flag used to prevent firing of the click handler
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42 // as the event bubbles up through nested menus
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43 this.mouseHandled = false;
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44 this.element
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45 .uniqueId()
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46 .addClass( "ui-menu ui-widget ui-widget-content ui-corner-all" )
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47 .toggleClass( "ui-menu-icons", !!this.element.find( ".ui-icon" ).length )
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48 .attr({
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49 role: this.options.role,
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50 tabIndex: 0
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51 })
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52 // need to catch all clicks on disabled menu
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53 // not possible through _on
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54 .bind( "click" + this.eventNamespace, $.proxy(function( event ) {
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55 if ( this.options.disabled ) {
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56 event.preventDefault();
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57 }
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58 }, this ));
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59
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60 if ( this.options.disabled ) {
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61 this.element
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62 .addClass( "ui-state-disabled" )
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63 .attr( "aria-disabled", "true" );
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64 }
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65
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66 this._on({
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67 // Prevent focus from sticking to links inside menu after clicking
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68 // them (focus should always stay on UL during navigation).
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69 "mousedown .ui-menu-item > a": function( event ) {
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70 event.preventDefault();
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71 },
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72 "click .ui-state-disabled > a": function( event ) {
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73 event.preventDefault();
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74 },
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75 "click .ui-menu-item:has(a)": function( event ) {
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76 var target = $( event.target ).closest( ".ui-menu-item" );
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77 if ( !this.mouseHandled && target.not( ".ui-state-disabled" ).length ) {
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78 this.select( event );
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79
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80 // Only set the mouseHandled flag if the event will bubble, see #9469.
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81 if ( !event.isPropagationStopped() ) {
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82 this.mouseHandled = true;
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83 }
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84
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85 // Open submenu on click
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86 if ( target.has( ".ui-menu" ).length ) {
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87 this.expand( event );
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88 } else if ( !this.element.is( ":focus" ) && $( this.document[ 0 ].activeElement ).closest( ".ui-menu" ).length ) {
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89
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90 // Redirect focus to the menu
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91 this.element.trigger( "focus", [ true ] );
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92
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93 // If the active item is on the top level, let it stay active.
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94 // Otherwise, blur the active item since it is no longer visible.
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95 if ( this.active && this.active.parents( ".ui-menu" ).length === 1 ) {
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96 clearTimeout( this.timer );
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97 }
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98 }
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99 }
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100 },
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101 "mouseenter .ui-menu-item": function( event ) {
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102 var target = $( event.currentTarget );
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103 // Remove ui-state-active class from siblings of the newly focused menu item
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104 // to avoid a jump caused by adjacent elements both having a class with a border
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105 target.siblings().children( ".ui-state-active" ).removeClass( "ui-state-active" );
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106 this.focus( event, target );
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107 },
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108 mouseleave: "collapseAll",
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109 "mouseleave .ui-menu": "collapseAll",
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110 focus: function( event, keepActiveItem ) {
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111 // If there's already an active item, keep it active
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112 // If not, activate the first item
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113 var item = this.active || this.element.children( ".ui-menu-item" ).eq( 0 );
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114
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115 if ( !keepActiveItem ) {
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116 this.focus( event, item );
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117 }
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118 },
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119 blur: function( event ) {
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120 this._delay(function() {
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121 if ( !$.contains( this.element[0], this.document[0].activeElement ) ) {
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122 this.collapseAll( event );
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123 }
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124 });
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125 },
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126 keydown: "_keydown"
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127 });
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128
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129 this.refresh();
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130
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131 // Clicks outside of a menu collapse any open menus
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132 this._on( this.document, {
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133 click: function( event ) {
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134 if ( !$( event.target ).closest( ".ui-menu" ).length ) {
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135 this.collapseAll( event );
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136 }
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137
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138 // Reset the mouseHandled flag
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139 this.mouseHandled = false;
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140 }
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141 });
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142 },
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143
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144 _destroy: function() {
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145 // Destroy (sub)menus
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146 this.element
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147 .removeAttr( "aria-activedescendant" )
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148 .find( ".ui-menu" ).addBack()
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149 .removeClass( "ui-menu ui-widget ui-widget-content ui-corner-all ui-menu-icons" )
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150 .removeAttr( "role" )
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151 .removeAttr( "tabIndex" )
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152 .removeAttr( "aria-labelledby" )
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153 .removeAttr( "aria-expanded" )
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154 .removeAttr( "aria-hidden" )
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155 .removeAttr( "aria-disabled" )
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156 .removeUniqueId()
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157 .show();
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158
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159 // Destroy menu items
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160 this.element.find( ".ui-menu-item" )
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161 .removeClass( "ui-menu-item" )
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162 .removeAttr( "role" )
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163 .removeAttr( "aria-disabled" )
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164 .children( "a" )
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165 .removeUniqueId()
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166 .removeClass( "ui-corner-all ui-state-hover" )
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167 .removeAttr( "tabIndex" )
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168 .removeAttr( "role" )
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169 .removeAttr( "aria-haspopup" )
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170 .children().each( function() {
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171 var elem = $( this );
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172 if ( elem.data( "ui-menu-submenu-carat" ) ) {
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173 elem.remove();
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174 }
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175 });
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176
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177 // Destroy menu dividers
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178 this.element.find( ".ui-menu-divider" ).removeClass( "ui-menu-divider ui-widget-content" );
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179 },
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180
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181 _keydown: function( event ) {
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182 var match, prev, character, skip, regex,
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183 preventDefault = true;
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184
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185 function escape( value ) {
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186 return value.replace( /[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&" );
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187 }
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188
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189 switch ( event.keyCode ) {
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190 case $.ui.keyCode.PAGE_UP:
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191 this.previousPage( event );
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192 break;
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193 case $.ui.keyCode.PAGE_DOWN:
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194 this.nextPage( event );
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195 break;
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196 case $.ui.keyCode.HOME:
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197 this._move( "first", "first", event );
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198 break;
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199 case $.ui.keyCode.END:
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200 this._move( "last", "last", event );
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201 break;
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202 case $.ui.keyCode.UP:
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203 this.previous( event );
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204 break;
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205 case $.ui.keyCode.DOWN:
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206 this.next( event );
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207 break;
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208 case $.ui.keyCode.LEFT:
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209 this.collapse( event );
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210 break;
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211 case $.ui.keyCode.RIGHT:
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212 if ( this.active && !this.active.is( ".ui-state-disabled" ) ) {
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213 this.expand( event );
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214 }
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215 break;
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216 case $.ui.keyCode.ENTER:
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217 case $.ui.keyCode.SPACE:
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218 this._activate( event );
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219 break;
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220 case $.ui.keyCode.ESCAPE:
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221 this.collapse( event );
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222 break;
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223 default:
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224 preventDefault = false;
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225 prev = this.previousFilter || "";
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226 character = String.fromCharCode( event.keyCode );
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227 skip = false;
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228
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229 clearTimeout( this.filterTimer );
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230
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231 if ( character === prev ) {
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232 skip = true;
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233 } else {
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234 character = prev + character;
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235 }
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236
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237 regex = new RegExp( "^" + escape( character ), "i" );
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238 match = this.activeMenu.children( ".ui-menu-item" ).filter(function() {
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239 return regex.test( $( this ).children( "a" ).text() );
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240 });
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241 match = skip && match.index( this.active.next() ) !== -1 ?
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242 this.active.nextAll( ".ui-menu-item" ) :
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243 match;
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244
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245 // If no matches on the current filter, reset to the last character pressed
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246 // to move down the menu to the first item that starts with that character
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247 if ( !match.length ) {
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248 character = String.fromCharCode( event.keyCode );
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249 regex = new RegExp( "^" + escape( character ), "i" );
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250 match = this.activeMenu.children( ".ui-menu-item" ).filter(function() {
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251 return regex.test( $( this ).children( "a" ).text() );
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252 });
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253 }
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254
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255 if ( match.length ) {
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256 this.focus( event, match );
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257 if ( match.length > 1 ) {
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258 this.previousFilter = character;
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259 this.filterTimer = this._delay(function() {
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260 delete this.previousFilter;
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261 }, 1000 );
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262 } else {
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263 delete this.previousFilter;
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264 }
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265 } else {
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266 delete this.previousFilter;
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267 }
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268 }
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269
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270 if ( preventDefault ) {
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271 event.preventDefault();
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272 }
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273 },
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274
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275 _activate: function( event ) {
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276 if ( !this.active.is( ".ui-state-disabled" ) ) {
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277 if ( this.active.children( "a[aria-haspopup='true']" ).length ) {
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278 this.expand( event );
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279 } else {
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280 this.select( event );
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281 }
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282 }
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283 },
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284
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285 refresh: function() {
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286 var menus,
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287 icon = this.options.icons.submenu,
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288 submenus = this.element.find( this.options.menus );
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289
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290 this.element.toggleClass( "ui-menu-icons", !!this.element.find( ".ui-icon" ).length );
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291
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292 // Initialize nested menus
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293 submenus.filter( ":not(.ui-menu)" )
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294 .addClass( "ui-menu ui-widget ui-widget-content ui-corner-all" )
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295 .hide()
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296 .attr({
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297 role: this.options.role,
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298 "aria-hidden": "true",
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299 "aria-expanded": "false"
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300 })
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301 .each(function() {
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302 var menu = $( this ),
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303 item = menu.prev( "a" ),
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304 submenuCarat = $( "<span>" )
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305 .addClass( "ui-menu-icon ui-icon " + icon )
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306 .data( "ui-menu-submenu-carat", true );
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307
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308 item
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309 .attr( "aria-haspopup", "true" )
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310 .prepend( submenuCarat );
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311 menu.attr( "aria-labelledby", item.attr( "id" ) );
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312 });
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313
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314 menus = submenus.add( this.element );
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315
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316 // Don't refresh list items that are already adapted
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317 menus.children( ":not(.ui-menu-item):has(a)" )
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318 .addClass( "ui-menu-item" )
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319 .attr( "role", "presentation" )
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320 .children( "a" )
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321 .uniqueId()
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322 .addClass( "ui-corner-all" )
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323 .attr({
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324 tabIndex: -1,
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325 role: this._itemRole()
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326 });
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327
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328 // Initialize unlinked menu-items containing spaces and/or dashes only as dividers
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329 menus.children( ":not(.ui-menu-item)" ).each(function() {
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330 var item = $( this );
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331 // hyphen, em dash, en dash
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332 if ( !/[^\-\u2014\u2013\s]/.test( item.text() ) ) {
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333 item.addClass( "ui-widget-content ui-menu-divider" );
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334 }
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335 });
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336
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337 // Add aria-disabled attribute to any disabled menu item
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338 menus.children( ".ui-state-disabled" ).attr( "aria-disabled", "true" );
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339
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340 // If the active item has been removed, blur the menu
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341 if ( this.active && !$.contains( this.element[ 0 ], this.active[ 0 ] ) ) {
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342 this.blur();
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343 }
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344 },
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345
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346 _itemRole: function() {
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347 return {
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348 menu: "menuitem",
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349 listbox: "option"
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350 }[ this.options.role ];
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351 },
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352
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353 _setOption: function( key, value ) {
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354 if ( key === "icons" ) {
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355 this.element.find( ".ui-menu-icon" )
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356 .removeClass( this.options.icons.submenu )
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357 .addClass( value.submenu );
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358 }
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359 this._super( key, value );
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360 },
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361
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362 focus: function( event, item ) {
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363 var nested, focused;
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364 this.blur( event, event && event.type === "focus" );
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365
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366 this._scrollIntoView( item );
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367
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368 this.active = item.first();
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369 focused = this.active.children( "a" ).addClass( "ui-state-focus" );
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370 // Only update aria-activedescendant if there's a role
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371 // otherwise we assume focus is managed elsewhere
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372 if ( this.options.role ) {
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373 this.element.attr( "aria-activedescendant", focused.attr( "id" ) );
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374 }
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375
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376 // Highlight active parent menu item, if any
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377 this.active
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378 .parent()
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379 .closest( ".ui-menu-item" )
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380 .children( "a:first" )
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381 .addClass( "ui-state-active" );
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382
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383 if ( event && event.type === "keydown" ) {
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384 this._close();
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385 } else {
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386 this.timer = this._delay(function() {
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387 this._close();
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388 }, this.delay );
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389 }
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390
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391 nested = item.children( ".ui-menu" );
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392 if ( nested.length && event && ( /^mouse/.test( event.type ) ) ) {
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393 this._startOpening(nested);
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394 }
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395 this.activeMenu = item.parent();
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396
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397 this._trigger( "focus", event, { item: item } );
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398 },
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399
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400 _scrollIntoView: function( item ) {
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401 var borderTop, paddingTop, offset, scroll, elementHeight, itemHeight;
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402 if ( this._hasScroll() ) {
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403 borderTop = parseFloat( $.css( this.activeMenu[0], "borderTopWidth" ) ) || 0;
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404 paddingTop = parseFloat( $.css( this.activeMenu[0], "paddingTop" ) ) || 0;
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405 offset = item.offset().top - this.activeMenu.offset().top - borderTop - paddingTop;
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406 scroll = this.activeMenu.scrollTop();
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407 elementHeight = this.activeMenu.height();
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408 itemHeight = item.height();
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409
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410 if ( offset < 0 ) {
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411 this.activeMenu.scrollTop( scroll + offset );
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412 } else if ( offset + itemHeight > elementHeight ) {
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413 this.activeMenu.scrollTop( scroll + offset - elementHeight + itemHeight );
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414 }
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415 }
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416 },
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417
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418 blur: function( event, fromFocus ) {
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419 if ( !fromFocus ) {
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420 clearTimeout( this.timer );
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421 }
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422
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423 if ( !this.active ) {
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424 return;
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425 }
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426
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427 this.active.children( "a" ).removeClass( "ui-state-focus" );
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428 this.active = null;
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429
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430 this._trigger( "blur", event, { item: this.active } );
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431 },
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432
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433 _startOpening: function( submenu ) {
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434 clearTimeout( this.timer );
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435
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436 // Don't open if already open fixes a Firefox bug that caused a .5 pixel
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437 // shift in the submenu position when mousing over the carat icon
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438 if ( submenu.attr( "aria-hidden" ) !== "true" ) {
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439 return;
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440 }
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441
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442 this.timer = this._delay(function() {
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443 this._close();
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444 this._open( submenu );
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445 }, this.delay );
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446 },
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447
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448 _open: function( submenu ) {
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449 var position = $.extend({
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450 of: this.active
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451 }, this.options.position );
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452
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453 clearTimeout( this.timer );
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454 this.element.find( ".ui-menu" ).not( submenu.parents( ".ui-menu" ) )
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455 .hide()
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456 .attr( "aria-hidden", "true" );
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457
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458 submenu
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459 .show()
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460 .removeAttr( "aria-hidden" )
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461 .attr( "aria-expanded", "true" )
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462 .position( position );
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463 },
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464
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465 collapseAll: function( event, all ) {
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466 clearTimeout( this.timer );
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467 this.timer = this._delay(function() {
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468 // If we were passed an event, look for the submenu that contains the event
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469 var currentMenu = all ? this.element :
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470 $( event && event.target ).closest( this.element.find( ".ui-menu" ) );
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471
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472 // If we found no valid submenu ancestor, use the main menu to close all sub menus anyway
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473 if ( !currentMenu.length ) {
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474 currentMenu = this.element;
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475 }
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476
|
|
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477 this._close( currentMenu );
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478
|
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479 this.blur( event );
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|
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480 this.activeMenu = currentMenu;
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481 }, this.delay );
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482 },
|
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483
|
|
|
484 // With no arguments, closes the currently active menu - if nothing is active
|
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485 // it closes all menus. If passed an argument, it will search for menus BELOW
|
|
|
486 _close: function( startMenu ) {
|
|
|
487 if ( !startMenu ) {
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|
|
488 startMenu = this.active ? this.active.parent() : this.element;
|
|
|
489 }
|
|
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490
|
|
|
491 startMenu
|
|
|
492 .find( ".ui-menu" )
|
|
|
493 .hide()
|
|
|
494 .attr( "aria-hidden", "true" )
|
|
|
495 .attr( "aria-expanded", "false" )
|
|
|
496 .end()
|
|
|
497 .find( "a.ui-state-active" )
|
|
|
498 .removeClass( "ui-state-active" );
|
|
|
499 },
|
|
|
500
|
|
|
501 collapse: function( event ) {
|
|
|
502 var newItem = this.active &&
|
|
|
503 this.active.parent().closest( ".ui-menu-item", this.element );
|
|
|
504 if ( newItem && newItem.length ) {
|
|
|
505 this._close();
|
|
|
506 this.focus( event, newItem );
|
|
|
507 }
|
|
|
508 },
|
|
|
509
|
|
|
510 expand: function( event ) {
|
|
|
511 var newItem = this.active &&
|
|
|
512 this.active
|
|
|
513 .children( ".ui-menu " )
|
|
|
514 .children( ".ui-menu-item" )
|
|
|
515 .first();
|
|
|
516
|
|
|
517 if ( newItem && newItem.length ) {
|
|
|
518 this._open( newItem.parent() );
|
|
|
519
|
|
|
520 // Delay so Firefox will not hide activedescendant change in expanding submenu from AT
|
|
|
521 this._delay(function() {
|
|
|
522 this.focus( event, newItem );
|
|
|
523 });
|
|
|
524 }
|
|
|
525 },
|
|
|
526
|
|
|
527 next: function( event ) {
|
|
|
528 this._move( "next", "first", event );
|
|
|
529 },
|
|
|
530
|
|
|
531 previous: function( event ) {
|
|
|
532 this._move( "prev", "last", event );
|
|
|
533 },
|
|
|
534
|
|
|
535 isFirstItem: function() {
|
|
|
536 return this.active && !this.active.prevAll( ".ui-menu-item" ).length;
|
|
|
537 },
|
|
|
538
|
|
|
539 isLastItem: function() {
|
|
|
540 return this.active && !this.active.nextAll( ".ui-menu-item" ).length;
|
|
|
541 },
|
|
|
542
|
|
|
543 _move: function( direction, filter, event ) {
|
|
|
544 var next;
|
|
|
545 if ( this.active ) {
|
|
|
546 if ( direction === "first" || direction === "last" ) {
|
|
|
547 next = this.active
|
|
|
548 [ direction === "first" ? "prevAll" : "nextAll" ]( ".ui-menu-item" )
|
|
|
549 .eq( -1 );
|
|
|
550 } else {
|
|
|
551 next = this.active
|
|
|
552 [ direction + "All" ]( ".ui-menu-item" )
|
|
|
553 .eq( 0 );
|
|
|
554 }
|
|
|
555 }
|
|
|
556 if ( !next || !next.length || !this.active ) {
|
|
|
557 next = this.activeMenu.children( ".ui-menu-item" )[ filter ]();
|
|
|
558 }
|
|
|
559
|
|
|
560 this.focus( event, next );
|
|
|
561 },
|
|
|
562
|
|
|
563 nextPage: function( event ) {
|
|
|
564 var item, base, height;
|
|
|
565
|
|
|
566 if ( !this.active ) {
|
|
|
567 this.next( event );
|
|
|
568 return;
|
|
|
569 }
|
|
|
570 if ( this.isLastItem() ) {
|
|
|
571 return;
|
|
|
572 }
|
|
|
573 if ( this._hasScroll() ) {
|
|
|
574 base = this.active.offset().top;
|
|
|
575 height = this.element.height();
|
|
|
576 this.active.nextAll( ".ui-menu-item" ).each(function() {
|
|
|
577 item = $( this );
|
|
|
578 return item.offset().top - base - height < 0;
|
|
|
579 });
|
|
|
580
|
|
|
581 this.focus( event, item );
|
|
|
582 } else {
|
|
|
583 this.focus( event, this.activeMenu.children( ".ui-menu-item" )
|
|
|
584 [ !this.active ? "first" : "last" ]() );
|
|
|
585 }
|
|
|
586 },
|
|
|
587
|
|
|
588 previousPage: function( event ) {
|
|
|
589 var item, base, height;
|
|
|
590 if ( !this.active ) {
|
|
|
591 this.next( event );
|
|
|
592 return;
|
|
|
593 }
|
|
|
594 if ( this.isFirstItem() ) {
|
|
|
595 return;
|
|
|
596 }
|
|
|
597 if ( this._hasScroll() ) {
|
|
|
598 base = this.active.offset().top;
|
|
|
599 height = this.element.height();
|
|
|
600 this.active.prevAll( ".ui-menu-item" ).each(function() {
|
|
|
601 item = $( this );
|
|
|
602 return item.offset().top - base + height > 0;
|
|
|
603 });
|
|
|
604
|
|
|
605 this.focus( event, item );
|
|
|
606 } else {
|
|
|
607 this.focus( event, this.activeMenu.children( ".ui-menu-item" ).first() );
|
|
|
608 }
|
|
|
609 },
|
|
|
610
|
|
|
611 _hasScroll: function() {
|
|
|
612 return this.element.outerHeight() < this.element.prop( "scrollHeight" );
|
|
|
613 },
|
|
|
614
|
|
|
615 select: function( event ) {
|
|
|
616 // TODO: It should never be possible to not have an active item at this
|
|
|
617 // point, but the tests don't trigger mouseenter before click.
|
|
|
618 this.active = this.active || $( event.target ).closest( ".ui-menu-item" );
|
|
|
619 var ui = { item: this.active };
|
|
|
620 if ( !this.active.has( ".ui-menu" ).length ) {
|
|
|
621 this.collapseAll( event, true );
|
|
|
622 }
|
|
|
623 this._trigger( "select", event, ui );
|
|
|
624 }
|
|
|
625 });
|
|
|
626
|
|
|
627 }( jQuery ));
|
