709 lines
18 KiB
JavaScript
709 lines
18 KiB
JavaScript
/*!
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* jQuery UI Menu 1.13.2
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* http://jqueryui.com
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*
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* Copyright jQuery Foundation and other contributors
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* Released under the MIT license.
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* http://jquery.org/license
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*/
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//>>label: Menu
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//>>group: Widgets
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//>>description: Creates nestable menus.
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//>>docs: http://api.jqueryui.com/menu/
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//>>demos: http://jqueryui.com/menu/
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//>>css.structure: ../../themes/base/core.css
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//>>css.structure: ../../themes/base/menu.css
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//>>css.theme: ../../themes/base/theme.css
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( function( factory ) {
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"use strict";
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if ( typeof define === "function" && define.amd ) {
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// AMD. Register as an anonymous module.
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define( [
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"jquery",
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"./core"
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], factory );
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} else {
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// Browser globals
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factory( jQuery );
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}
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} )( function( $ ) {
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"use strict";
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return $.widget( "ui.menu", {
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version: "1.13.2",
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defaultElement: "<ul>",
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delay: 300,
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options: {
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icons: {
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submenu: "ui-icon-caret-1-e"
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},
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items: "> *",
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menus: "ul",
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position: {
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my: "left top",
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at: "right top"
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},
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role: "menu",
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// Callbacks
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blur: null,
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focus: null,
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select: null
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},
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_create: function() {
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this.activeMenu = this.element;
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// Flag used to prevent firing of the click handler
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// as the event bubbles up through nested menus
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this.mouseHandled = false;
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this.lastMousePosition = { x: null, y: null };
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this.element
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.uniqueId()
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.attr( {
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role: this.options.role,
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tabIndex: 0
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} );
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this._addClass( "ui-menu", "ui-widget ui-widget-content" );
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this._on( {
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// Prevent focus from sticking to links inside menu after clicking
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// them (focus should always stay on UL during navigation).
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"mousedown .ui-menu-item": function( event ) {
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event.preventDefault();
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this._activateItem( event );
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},
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"click .ui-menu-item": function( event ) {
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var target = $( event.target );
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var active = $( $.ui.safeActiveElement( this.document[ 0 ] ) );
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if ( !this.mouseHandled && target.not( ".ui-state-disabled" ).length ) {
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this.select( event );
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// Only set the mouseHandled flag if the event will bubble, see #9469.
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if ( !event.isPropagationStopped() ) {
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this.mouseHandled = true;
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}
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// Open submenu on click
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if ( target.has( ".ui-menu" ).length ) {
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this.expand( event );
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} else if ( !this.element.is( ":focus" ) &&
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active.closest( ".ui-menu" ).length ) {
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// Redirect focus to the menu
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this.element.trigger( "focus", [ true ] );
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// If the active item is on the top level, let it stay active.
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// Otherwise, blur the active item since it is no longer visible.
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if ( this.active && this.active.parents( ".ui-menu" ).length === 1 ) {
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clearTimeout( this.timer );
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}
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}
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}
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},
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"mouseenter .ui-menu-item": "_activateItem",
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"mousemove .ui-menu-item": "_activateItem",
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mouseleave: "collapseAll",
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"mouseleave .ui-menu": "collapseAll",
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focus: function( event, keepActiveItem ) {
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// If there's already an active item, keep it active
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// If not, activate the first item
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var item = this.active || this._menuItems().first();
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if ( !keepActiveItem ) {
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this.focus( event, item );
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}
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},
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blur: function( event ) {
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this._delay( function() {
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var notContained = !$.contains(
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this.element[ 0 ],
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$.ui.safeActiveElement( this.document[ 0 ] )
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);
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if ( notContained ) {
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this.collapseAll( event );
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}
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} );
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},
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keydown: "_keydown"
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} );
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this.refresh();
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// Clicks outside of a menu collapse any open menus
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this._on( this.document, {
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click: function( event ) {
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if ( this._closeOnDocumentClick( event ) ) {
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this.collapseAll( event, true );
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}
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// Reset the mouseHandled flag
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this.mouseHandled = false;
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}
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} );
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},
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_activateItem: function( event ) {
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// Ignore mouse events while typeahead is active, see #10458.
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// Prevents focusing the wrong item when typeahead causes a scroll while the mouse
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// is over an item in the menu
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if ( this.previousFilter ) {
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return;
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}
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// If the mouse didn't actually move, but the page was scrolled, ignore the event (#9356)
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if ( event.clientX === this.lastMousePosition.x &&
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event.clientY === this.lastMousePosition.y ) {
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return;
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}
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this.lastMousePosition = {
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x: event.clientX,
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y: event.clientY
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};
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var actualTarget = $( event.target ).closest( ".ui-menu-item" ),
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target = $( event.currentTarget );
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// Ignore bubbled events on parent items, see #11641
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if ( actualTarget[ 0 ] !== target[ 0 ] ) {
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return;
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}
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// If the item is already active, there's nothing to do
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if ( target.is( ".ui-state-active" ) ) {
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return;
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}
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// Remove ui-state-active class from siblings of the newly focused menu item
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// to avoid a jump caused by adjacent elements both having a class with a border
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this._removeClass( target.siblings().children( ".ui-state-active" ),
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null, "ui-state-active" );
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this.focus( event, target );
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},
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_destroy: function() {
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var items = this.element.find( ".ui-menu-item" )
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.removeAttr( "role aria-disabled" ),
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submenus = items.children( ".ui-menu-item-wrapper" )
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.removeUniqueId()
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.removeAttr( "tabIndex role aria-haspopup" );
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// Destroy (sub)menus
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this.element
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.removeAttr( "aria-activedescendant" )
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.find( ".ui-menu" ).addBack()
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.removeAttr( "role aria-labelledby aria-expanded aria-hidden aria-disabled " +
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"tabIndex" )
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.removeUniqueId()
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.show();
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submenus.children().each( function() {
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var elem = $( this );
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if ( elem.data( "ui-menu-submenu-caret" ) ) {
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elem.remove();
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}
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} );
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},
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_keydown: function( event ) {
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var match, prev, character, skip,
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preventDefault = true;
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switch ( event.keyCode ) {
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case $.ui.keyCode.PAGE_UP:
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this.previousPage( event );
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break;
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case $.ui.keyCode.PAGE_DOWN:
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this.nextPage( event );
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break;
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case $.ui.keyCode.HOME:
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this._move( "first", "first", event );
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break;
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case $.ui.keyCode.END:
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this._move( "last", "last", event );
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break;
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case $.ui.keyCode.UP:
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this.previous( event );
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break;
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case $.ui.keyCode.DOWN:
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this.next( event );
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break;
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case $.ui.keyCode.LEFT:
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this.collapse( event );
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break;
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case $.ui.keyCode.RIGHT:
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if ( this.active && !this.active.is( ".ui-state-disabled" ) ) {
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this.expand( event );
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}
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break;
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case $.ui.keyCode.ENTER:
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case $.ui.keyCode.SPACE:
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this._activate( event );
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break;
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case $.ui.keyCode.ESCAPE:
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this.collapse( event );
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break;
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default:
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preventDefault = false;
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prev = this.previousFilter || "";
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skip = false;
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// Support number pad values
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character = event.keyCode >= 96 && event.keyCode <= 105 ?
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( event.keyCode - 96 ).toString() : String.fromCharCode( event.keyCode );
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clearTimeout( this.filterTimer );
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if ( character === prev ) {
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skip = true;
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} else {
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character = prev + character;
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}
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match = this._filterMenuItems( character );
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match = skip && match.index( this.active.next() ) !== -1 ?
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this.active.nextAll( ".ui-menu-item" ) :
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match;
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// If no matches on the current filter, reset to the last character pressed
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// to move down the menu to the first item that starts with that character
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if ( !match.length ) {
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character = String.fromCharCode( event.keyCode );
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match = this._filterMenuItems( character );
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}
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if ( match.length ) {
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this.focus( event, match );
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this.previousFilter = character;
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this.filterTimer = this._delay( function() {
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delete this.previousFilter;
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}, 1000 );
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} else {
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delete this.previousFilter;
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}
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}
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if ( preventDefault ) {
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event.preventDefault();
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}
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},
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_activate: function( event ) {
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if ( this.active && !this.active.is( ".ui-state-disabled" ) ) {
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if ( this.active.children( "[aria-haspopup='true']" ).length ) {
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this.expand( event );
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} else {
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this.select( event );
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}
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}
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},
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refresh: function() {
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var menus, items, newSubmenus, newItems, newWrappers,
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that = this,
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icon = this.options.icons.submenu,
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submenus = this.element.find( this.options.menus );
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this._toggleClass( "ui-menu-icons", null, !!this.element.find( ".ui-icon" ).length );
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// Initialize nested menus
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newSubmenus = submenus.filter( ":not(.ui-menu)" )
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.hide()
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.attr( {
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role: this.options.role,
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"aria-hidden": "true",
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"aria-expanded": "false"
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} )
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.each( function() {
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var menu = $( this ),
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item = menu.prev(),
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submenuCaret = $( "<span>" ).data( "ui-menu-submenu-caret", true );
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that._addClass( submenuCaret, "ui-menu-icon", "ui-icon " + icon );
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item
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.attr( "aria-haspopup", "true" )
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.prepend( submenuCaret );
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menu.attr( "aria-labelledby", item.attr( "id" ) );
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} );
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this._addClass( newSubmenus, "ui-menu", "ui-widget ui-widget-content ui-front" );
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menus = submenus.add( this.element );
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items = menus.find( this.options.items );
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// Initialize menu-items containing spaces and/or dashes only as dividers
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items.not( ".ui-menu-item" ).each( function() {
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var item = $( this );
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if ( that._isDivider( item ) ) {
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that._addClass( item, "ui-menu-divider", "ui-widget-content" );
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}
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} );
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// Don't refresh list items that are already adapted
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newItems = items.not( ".ui-menu-item, .ui-menu-divider" );
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newWrappers = newItems.children()
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.not( ".ui-menu" )
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.uniqueId()
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.attr( {
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tabIndex: -1,
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role: this._itemRole()
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} );
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this._addClass( newItems, "ui-menu-item" )
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._addClass( newWrappers, "ui-menu-item-wrapper" );
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// Add aria-disabled attribute to any disabled menu item
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items.filter( ".ui-state-disabled" ).attr( "aria-disabled", "true" );
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// If the active item has been removed, blur the menu
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if ( this.active && !$.contains( this.element[ 0 ], this.active[ 0 ] ) ) {
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this.blur();
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}
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},
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_itemRole: function() {
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return {
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menu: "menuitem",
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listbox: "option"
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}[ this.options.role ];
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},
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_setOption: function( key, value ) {
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if ( key === "icons" ) {
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var icons = this.element.find( ".ui-menu-icon" );
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this._removeClass( icons, null, this.options.icons.submenu )
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._addClass( icons, null, value.submenu );
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}
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this._super( key, value );
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},
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_setOptionDisabled: function( value ) {
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this._super( value );
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this.element.attr( "aria-disabled", String( value ) );
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this._toggleClass( null, "ui-state-disabled", !!value );
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},
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focus: function( event, item ) {
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var nested, focused, activeParent;
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this.blur( event, event && event.type === "focus" );
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this._scrollIntoView( item );
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this.active = item.first();
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focused = this.active.children( ".ui-menu-item-wrapper" );
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this._addClass( focused, null, "ui-state-active" );
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// Only update aria-activedescendant if there's a role
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// otherwise we assume focus is managed elsewhere
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if ( this.options.role ) {
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this.element.attr( "aria-activedescendant", focused.attr( "id" ) );
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}
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// Highlight active parent menu item, if any
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activeParent = this.active
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.parent()
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.closest( ".ui-menu-item" )
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.children( ".ui-menu-item-wrapper" );
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this._addClass( activeParent, null, "ui-state-active" );
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if ( event && event.type === "keydown" ) {
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this._close();
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} else {
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this.timer = this._delay( function() {
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this._close();
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}, this.delay );
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}
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nested = item.children( ".ui-menu" );
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if ( nested.length && event && ( /^mouse/.test( event.type ) ) ) {
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this._startOpening( nested );
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}
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this.activeMenu = item.parent();
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this._trigger( "focus", event, { item: item } );
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},
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_scrollIntoView: function( item ) {
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var borderTop, paddingTop, offset, scroll, elementHeight, itemHeight;
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if ( this._hasScroll() ) {
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borderTop = parseFloat( $.css( this.activeMenu[ 0 ], "borderTopWidth" ) ) || 0;
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paddingTop = parseFloat( $.css( this.activeMenu[ 0 ], "paddingTop" ) ) || 0;
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offset = item.offset().top - this.activeMenu.offset().top - borderTop - paddingTop;
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scroll = this.activeMenu.scrollTop();
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elementHeight = this.activeMenu.height();
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itemHeight = item.outerHeight();
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if ( offset < 0 ) {
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this.activeMenu.scrollTop( scroll + offset );
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} else if ( offset + itemHeight > elementHeight ) {
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this.activeMenu.scrollTop( scroll + offset - elementHeight + itemHeight );
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}
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}
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},
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blur: function( event, fromFocus ) {
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if ( !fromFocus ) {
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clearTimeout( this.timer );
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}
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if ( !this.active ) {
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return;
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}
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this._removeClass( this.active.children( ".ui-menu-item-wrapper" ),
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null, "ui-state-active" );
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this._trigger( "blur", event, { item: this.active } );
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this.active = null;
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},
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_startOpening: function( submenu ) {
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clearTimeout( this.timer );
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// Don't open if already open fixes a Firefox bug that caused a .5 pixel
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// shift in the submenu position when mousing over the caret icon
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if ( submenu.attr( "aria-hidden" ) !== "true" ) {
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return;
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}
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this.timer = this._delay( function() {
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this._close();
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this._open( submenu );
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}, this.delay );
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},
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_open: function( submenu ) {
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var position = $.extend( {
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of: this.active
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}, this.options.position );
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clearTimeout( this.timer );
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this.element.find( ".ui-menu" ).not( submenu.parents( ".ui-menu" ) )
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.hide()
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.attr( "aria-hidden", "true" );
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submenu
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.show()
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.removeAttr( "aria-hidden" )
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.attr( "aria-expanded", "true" )
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.position( position );
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},
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collapseAll: function( event, all ) {
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clearTimeout( this.timer );
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this.timer = this._delay( function() {
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// If we were passed an event, look for the submenu that contains the event
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var currentMenu = all ? this.element :
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$( event && event.target ).closest( this.element.find( ".ui-menu" ) );
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// If we found no valid submenu ancestor, use the main menu to close all
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// sub menus anyway
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if ( !currentMenu.length ) {
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currentMenu = this.element;
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}
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this._close( currentMenu );
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this.blur( event );
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// Work around active item staying active after menu is blurred
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this._removeClass( currentMenu.find( ".ui-state-active" ), null, "ui-state-active" );
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this.activeMenu = currentMenu;
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}, all ? 0 : this.delay );
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},
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// With no arguments, closes the currently active menu - if nothing is active
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// it closes all menus. If passed an argument, it will search for menus BELOW
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_close: function( startMenu ) {
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if ( !startMenu ) {
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startMenu = this.active ? this.active.parent() : this.element;
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}
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startMenu.find( ".ui-menu" )
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.hide()
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.attr( "aria-hidden", "true" )
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.attr( "aria-expanded", "false" );
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},
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_closeOnDocumentClick: function( event ) {
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return !$( event.target ).closest( ".ui-menu" ).length;
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},
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_isDivider: function( item ) {
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// Match hyphen, em dash, en dash
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return !/[^\-\u2014\u2013\s]/.test( item.text() );
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},
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collapse: function( event ) {
|
|
var newItem = this.active &&
|
|
this.active.parent().closest( ".ui-menu-item", this.element );
|
|
if ( newItem && newItem.length ) {
|
|
this._close();
|
|
this.focus( event, newItem );
|
|
}
|
|
},
|
|
|
|
expand: function( event ) {
|
|
var newItem = this.active && this._menuItems( this.active.children( ".ui-menu" ) ).first();
|
|
|
|
if ( newItem && newItem.length ) {
|
|
this._open( newItem.parent() );
|
|
|
|
// Delay so Firefox will not hide activedescendant change in expanding submenu from AT
|
|
this._delay( function() {
|
|
this.focus( event, newItem );
|
|
} );
|
|
}
|
|
},
|
|
|
|
next: function( event ) {
|
|
this._move( "next", "first", event );
|
|
},
|
|
|
|
previous: function( event ) {
|
|
this._move( "prev", "last", event );
|
|
},
|
|
|
|
isFirstItem: function() {
|
|
return this.active && !this.active.prevAll( ".ui-menu-item" ).length;
|
|
},
|
|
|
|
isLastItem: function() {
|
|
return this.active && !this.active.nextAll( ".ui-menu-item" ).length;
|
|
},
|
|
|
|
_menuItems: function( menu ) {
|
|
return ( menu || this.element )
|
|
.find( this.options.items )
|
|
.filter( ".ui-menu-item" );
|
|
},
|
|
|
|
_move: function( direction, filter, event ) {
|
|
var next;
|
|
if ( this.active ) {
|
|
if ( direction === "first" || direction === "last" ) {
|
|
next = this.active
|
|
[ direction === "first" ? "prevAll" : "nextAll" ]( ".ui-menu-item" )
|
|
.last();
|
|
} else {
|
|
next = this.active
|
|
[ direction + "All" ]( ".ui-menu-item" )
|
|
.first();
|
|
}
|
|
}
|
|
if ( !next || !next.length || !this.active ) {
|
|
next = this._menuItems( this.activeMenu )[ filter ]();
|
|
}
|
|
|
|
this.focus( event, next );
|
|
},
|
|
|
|
nextPage: function( event ) {
|
|
var item, base, height;
|
|
|
|
if ( !this.active ) {
|
|
this.next( event );
|
|
return;
|
|
}
|
|
if ( this.isLastItem() ) {
|
|
return;
|
|
}
|
|
if ( this._hasScroll() ) {
|
|
base = this.active.offset().top;
|
|
height = this.element.innerHeight();
|
|
|
|
// jQuery 3.2 doesn't include scrollbars in innerHeight, add it back.
|
|
if ( $.fn.jquery.indexOf( "3.2." ) === 0 ) {
|
|
height += this.element[ 0 ].offsetHeight - this.element.outerHeight();
|
|
}
|
|
|
|
this.active.nextAll( ".ui-menu-item" ).each( function() {
|
|
item = $( this );
|
|
return item.offset().top - base - height < 0;
|
|
} );
|
|
|
|
this.focus( event, item );
|
|
} else {
|
|
this.focus( event, this._menuItems( this.activeMenu )
|
|
[ !this.active ? "first" : "last" ]() );
|
|
}
|
|
},
|
|
|
|
previousPage: function( event ) {
|
|
var item, base, height;
|
|
if ( !this.active ) {
|
|
this.next( event );
|
|
return;
|
|
}
|
|
if ( this.isFirstItem() ) {
|
|
return;
|
|
}
|
|
if ( this._hasScroll() ) {
|
|
base = this.active.offset().top;
|
|
height = this.element.innerHeight();
|
|
|
|
// jQuery 3.2 doesn't include scrollbars in innerHeight, add it back.
|
|
if ( $.fn.jquery.indexOf( "3.2." ) === 0 ) {
|
|
height += this.element[ 0 ].offsetHeight - this.element.outerHeight();
|
|
}
|
|
|
|
this.active.prevAll( ".ui-menu-item" ).each( function() {
|
|
item = $( this );
|
|
return item.offset().top - base + height > 0;
|
|
} );
|
|
|
|
this.focus( event, item );
|
|
} else {
|
|
this.focus( event, this._menuItems( this.activeMenu ).first() );
|
|
}
|
|
},
|
|
|
|
_hasScroll: function() {
|
|
return this.element.outerHeight() < this.element.prop( "scrollHeight" );
|
|
},
|
|
|
|
select: function( event ) {
|
|
|
|
// TODO: It should never be possible to not have an active item at this
|
|
// point, but the tests don't trigger mouseenter before click.
|
|
this.active = this.active || $( event.target ).closest( ".ui-menu-item" );
|
|
var ui = { item: this.active };
|
|
if ( !this.active.has( ".ui-menu" ).length ) {
|
|
this.collapseAll( event, true );
|
|
}
|
|
this._trigger( "select", event, ui );
|
|
},
|
|
|
|
_filterMenuItems: function( character ) {
|
|
var escapedCharacter = character.replace( /[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&" ),
|
|
regex = new RegExp( "^" + escapedCharacter, "i" );
|
|
|
|
return this.activeMenu
|
|
.find( this.options.items )
|
|
|
|
// Only match on items, not dividers or other content (#10571)
|
|
.filter( ".ui-menu-item" )
|
|
.filter( function() {
|
|
return regex.test(
|
|
String.prototype.trim.call(
|
|
$( this ).children( ".ui-menu-item-wrapper" ).text() ) );
|
|
} );
|
|
}
|
|
} );
|
|
|
|
} );
|