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555 lines
15 KiB
555 lines
15 KiB
/*
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* jQuery UI Autocomplete 1.8.5
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*
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* Copyright 2010, AUTHORS.txt (http://jqueryui.com/about)
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* Dual licensed under the MIT or GPL Version 2 licenses.
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* http://jquery.org/license
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*
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* http://docs.jquery.com/UI/Autocomplete
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*
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* Depends:
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* jquery.ui.core.js
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* jquery.ui.widget.js
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* jquery.ui.position.js
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*/
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(function( $, undefined ) {
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$.widget( "ui.autocomplete", {
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options: {
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appendTo: "body",
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delay: 300,
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minLength: 1,
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position: {
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my: "left top",
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at: "left bottom",
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collision: "none"
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},
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source: null
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},
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_create: function() {
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var self = this,
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doc = this.element[ 0 ].ownerDocument;
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this.element
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.addClass( "ui-autocomplete-input" )
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.attr( "autocomplete", "off" )
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// TODO verify these actually work as intended
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.attr({
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role: "textbox",
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"aria-autocomplete": "list",
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"aria-haspopup": "true"
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})
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.bind( "keydown.autocomplete", function( event ) {
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if ( self.options.disabled ) {
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return;
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}
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var keyCode = $.ui.keyCode;
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switch( event.keyCode ) {
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case keyCode.PAGE_UP:
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self._move( "previousPage", event );
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break;
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case keyCode.PAGE_DOWN:
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self._move( "nextPage", event );
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break;
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case keyCode.UP:
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self._move( "previous", event );
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// prevent moving cursor to beginning of text field in some browsers
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event.preventDefault();
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break;
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case keyCode.DOWN:
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self._move( "next", event );
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// prevent moving cursor to end of text field in some browsers
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event.preventDefault();
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break;
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case keyCode.ENTER:
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case keyCode.NUMPAD_ENTER:
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// when menu is open or has focus
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if ( self.menu.element.is( ":visible" ) ) {
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event.preventDefault();
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}
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//passthrough - ENTER and TAB both select the current element
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case keyCode.TAB:
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if ( !self.menu.active ) {
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return;
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}
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self.menu.select( event );
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break;
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case keyCode.ESCAPE:
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self.element.val( self.term );
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self.close( event );
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break;
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default:
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// keypress is triggered before the input value is changed
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clearTimeout( self.searching );
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self.searching = setTimeout(function() {
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// only search if the value has changed
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if ( self.term != self.element.val() ) {
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self.selectedItem = null;
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self.search( null, event );
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}
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}, self.options.delay );
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break;
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}
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})
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.bind( "focus.autocomplete", function() {
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if ( self.options.disabled ) {
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return;
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}
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self.selectedItem = null;
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self.previous = self.element.val();
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})
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.bind( "blur.autocomplete", function( event ) {
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if ( self.options.disabled ) {
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return;
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}
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clearTimeout( self.searching );
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// clicks on the menu (or a button to trigger a search) will cause a blur event
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self.closing = setTimeout(function() {
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self.close( event );
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self._change( event );
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}, 150 );
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});
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this._initSource();
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this.response = function() {
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return self._response.apply( self, arguments );
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};
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this.menu = $( "<ul></ul>" )
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.addClass( "ui-autocomplete" )
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.appendTo( $( this.options.appendTo || "body", doc )[0] )
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// prevent the close-on-blur in case of a "slow" click on the menu (long mousedown)
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.mousedown(function( event ) {
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// clicking on the scrollbar causes focus to shift to the body
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// but we can't detect a mouseup or a click immediately afterward
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// so we have to track the next mousedown and close the menu if
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// the user clicks somewhere outside of the autocomplete
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var menuElement = self.menu.element[ 0 ];
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if ( event.target === menuElement ) {
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setTimeout(function() {
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$( document ).one( 'mousedown', function( event ) {
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if ( event.target !== self.element[ 0 ] &&
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event.target !== menuElement &&
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!$.ui.contains( menuElement, event.target ) ) {
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self.close();
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}
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});
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}, 1 );
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}
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// use another timeout to make sure the blur-event-handler on the input was already triggered
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setTimeout(function() {
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clearTimeout( self.closing );
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}, 13);
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})
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.menu({
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focus: function( event, ui ) {
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var item = ui.item.data( "item.autocomplete" );
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if ( false !== self._trigger( "focus", null, { item: item } ) ) {
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// use value to match what will end up in the input, if it was a key event
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if ( /^key/.test(event.originalEvent.type) ) {
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self.element.val( item.value );
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}
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}
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},
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selected: function( event, ui ) {
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var item = ui.item.data( "item.autocomplete" ),
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previous = self.previous;
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// only trigger when focus was lost (click on menu)
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if ( self.element[0] !== doc.activeElement ) {
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self.element.focus();
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self.previous = previous;
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}
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if ( false !== self._trigger( "select", event, { item: item } ) ) {
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self.term = item.value;
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self.element.val( item.value );
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}
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self.close( event );
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self.selectedItem = item;
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},
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blur: function( event, ui ) {
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// don't set the value of the text field if it's already correct
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// this prevents moving the cursor unnecessarily
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if ( self.menu.element.is(":visible") &&
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( self.element.val() !== self.term ) ) {
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self.element.val( self.term );
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}
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}
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})
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.zIndex( this.element.zIndex() + 1 )
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// workaround for jQuery bug #5781 http://dev.jquery.com/ticket/5781
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.css({ top: 0, left: 0 })
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.hide()
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.data( "menu" );
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if ( $.fn.bgiframe ) {
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this.menu.element.bgiframe();
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}
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},
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destroy: function() {
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this.element
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.removeClass( "ui-autocomplete-input" )
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.removeAttr( "autocomplete" )
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.removeAttr( "role" )
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.removeAttr( "aria-autocomplete" )
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.removeAttr( "aria-haspopup" );
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this.menu.element.remove();
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$.Widget.prototype.destroy.call( this );
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},
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_setOption: function( key, value ) {
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$.Widget.prototype._setOption.apply( this, arguments );
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if ( key === "source" ) {
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this._initSource();
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}
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if ( key === "appendTo" ) {
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this.menu.element.appendTo( $( value || "body", this.element[0].ownerDocument )[0] )
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}
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},
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_initSource: function() {
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var self = this,
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array,
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url;
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if ( $.isArray(this.options.source) ) {
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array = this.options.source;
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this.source = function( request, response ) {
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response( $.ui.autocomplete.filter(array, request.term) );
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};
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} else if ( typeof this.options.source === "string" ) {
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url = this.options.source;
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this.source = function( request, response ) {
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if (self.xhr) {
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self.xhr.abort();
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}
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self.xhr = $.getJSON( url, request, function( data, status, xhr ) {
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if ( xhr === self.xhr ) {
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response( data );
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}
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self.xhr = null;
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});
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};
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} else {
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this.source = this.options.source;
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}
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},
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search: function( value, event ) {
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value = value != null ? value : this.element.val();
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// always save the actual value, not the one passed as an argument
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this.term = this.element.val();
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if ( value.length < this.options.minLength ) {
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return this.close( event );
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}
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clearTimeout( this.closing );
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if ( this._trigger("search") === false ) {
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return;
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}
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return this._search( value );
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},
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_search: function( value ) {
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this.element.addClass( "ui-autocomplete-loading" );
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this.source( { term: value }, this.response );
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},
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_response: function( content ) {
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if ( content.length ) {
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content = this._normalize( content );
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this._suggest( content );
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this._trigger( "open" );
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} else {
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this.close();
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}
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this.element.removeClass( "ui-autocomplete-loading" );
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},
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close: function( event ) {
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clearTimeout( this.closing );
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if ( this.menu.element.is(":visible") ) {
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this._trigger( "close", event );
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this.menu.element.hide();
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this.menu.deactivate();
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}
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},
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_change: function( event ) {
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if ( this.previous !== this.element.val() ) {
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this._trigger( "change", event, { item: this.selectedItem } );
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}
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},
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_normalize: function( items ) {
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// assume all items have the right format when the first item is complete
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if ( items.length && items[0].label && items[0].value ) {
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return items;
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}
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return $.map( items, function(item) {
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if ( typeof item === "string" ) {
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return {
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label: item,
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value: item
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};
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}
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return $.extend({
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label: item.label || item.value,
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value: item.value || item.label
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}, item );
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});
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},
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_suggest: function( items ) {
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var ul = this.menu.element
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.empty()
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.zIndex( this.element.zIndex() + 1 ),
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menuWidth,
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textWidth;
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this._renderMenu( ul, items );
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// TODO refresh should check if the active item is still in the dom, removing the need for a manual deactivate
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this.menu.deactivate();
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this.menu.refresh();
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this.menu.element.show().position( $.extend({
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of: this.element
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}, this.options.position ));
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menuWidth = ul.width( "" ).outerWidth();
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textWidth = this.element.outerWidth();
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ul.outerWidth( Math.max( menuWidth, textWidth ) );
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},
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_renderMenu: function( ul, items ) {
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var self = this;
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$.each( items, function( index, item ) {
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self._renderItem( ul, item );
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});
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},
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_renderItem: function( ul, item) {
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return $( "<li></li>" )
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.data( "item.autocomplete", item )
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.append( $( "<a></a>" ).text( item.label ) )
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.appendTo( ul );
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},
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_move: function( direction, event ) {
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if ( !this.menu.element.is(":visible") ) {
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this.search( null, event );
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return;
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}
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if ( this.menu.first() && /^previous/.test(direction) ||
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this.menu.last() && /^next/.test(direction) ) {
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this.element.val( this.term );
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this.menu.deactivate();
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return;
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}
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this.menu[ direction ]( event );
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},
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widget: function() {
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return this.menu.element;
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}
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});
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$.extend( $.ui.autocomplete, {
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escapeRegex: function( value ) {
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return value.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
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},
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filter: function(array, term) {
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var matcher = new RegExp( $.ui.autocomplete.escapeRegex(term), "i" );
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return $.grep( array, function(value) {
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return matcher.test( value.label || value.value || value );
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});
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}
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});
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}( jQuery ));
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/*
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* jQuery UI Menu (not officially released)
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*
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* This widget isn't yet finished and the API is subject to change. We plan to finish
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* it for the next release. You're welcome to give it a try anyway and give us feedback,
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* as long as you're okay with migrating your code later on. We can help with that, too.
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*
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* Copyright 2010, AUTHORS.txt (http://jqueryui.com/about)
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* Dual licensed under the MIT or GPL Version 2 licenses.
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* http://jquery.org/license
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*
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* http://docs.jquery.com/UI/Menu
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*
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* Depends:
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* jquery.ui.core.js
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* jquery.ui.widget.js
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*/
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(function($) {
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$.widget("ui.menu", {
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_create: function() {
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var self = this;
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this.element
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.addClass("ui-menu ui-widget ui-widget-content ui-corner-all")
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.attr({
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role: "listbox",
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"aria-activedescendant": "ui-active-menuitem"
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})
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.click(function( event ) {
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if ( !$( event.target ).closest( ".ui-menu-item a" ).length ) {
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return;
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}
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// temporary
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event.preventDefault();
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self.select( event );
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});
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this.refresh();
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},
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refresh: function() {
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var self = this;
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// don't refresh list items that are already adapted
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var items = this.element.children("li:not(.ui-menu-item):has(a)")
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.addClass("ui-menu-item")
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.attr("role", "menuitem");
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items.children("a")
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.addClass("ui-corner-all")
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.attr("tabindex", -1)
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// mouseenter doesn't work with event delegation
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.mouseenter(function( event ) {
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self.activate( event, $(this).parent() );
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})
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.mouseleave(function() {
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self.deactivate();
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});
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},
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activate: function( event, item ) {
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this.deactivate();
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if (this.hasScroll()) {
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var offset = item.offset().top - this.element.offset().top,
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scroll = this.element.attr("scrollTop"),
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elementHeight = this.element.height();
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if (offset < 0) {
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this.element.attr("scrollTop", scroll + offset);
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} else if (offset >= elementHeight) {
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this.element.attr("scrollTop", scroll + offset - elementHeight + item.height());
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}
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}
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this.active = item.eq(0)
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.children("a")
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.addClass("ui-state-hover")
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.attr("id", "ui-active-menuitem")
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.end();
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this._trigger("focus", event, { item: item });
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},
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deactivate: function() {
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if (!this.active) { return; }
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this.active.children("a")
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.removeClass("ui-state-hover")
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.removeAttr("id");
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this._trigger("blur");
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this.active = null;
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},
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next: function(event) {
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this.move("next", ".ui-menu-item:first", event);
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},
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previous: function(event) {
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this.move("prev", ".ui-menu-item:last", event);
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},
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first: function() {
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return this.active && !this.active.prevAll(".ui-menu-item").length;
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},
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last: function() {
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return this.active && !this.active.nextAll(".ui-menu-item").length;
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},
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move: function(direction, edge, event) {
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if (!this.active) {
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this.activate(event, this.element.children(edge));
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return;
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}
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var next = this.active[direction + "All"](".ui-menu-item").eq(0);
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if (next.length) {
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this.activate(event, next);
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} else {
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this.activate(event, this.element.children(edge));
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}
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},
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// TODO merge with previousPage
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nextPage: function(event) {
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if (this.hasScroll()) {
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// TODO merge with no-scroll-else
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if (!this.active || this.last()) {
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this.activate(event, this.element.children(":first"));
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return;
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}
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var base = this.active.offset().top,
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height = this.element.height(),
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result = this.element.children("li").filter(function() {
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var close = $(this).offset().top - base - height + $(this).height();
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// TODO improve approximation
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return close < 10 && close > -10;
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});
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// TODO try to catch this earlier when scrollTop indicates the last page anyway
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if (!result.length) {
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result = this.element.children(":last");
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}
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this.activate(event, result);
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} else {
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this.activate(event, this.element.children(!this.active || this.last() ? ":first" : ":last"));
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}
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},
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// TODO merge with nextPage
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previousPage: function(event) {
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if (this.hasScroll()) {
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// TODO merge with no-scroll-else
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if (!this.active || this.first()) {
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this.activate(event, this.element.children(":last"));
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return;
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}
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var base = this.active.offset().top,
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height = this.element.height();
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result = this.element.children("li").filter(function() {
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var close = $(this).offset().top - base + height - $(this).height();
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// TODO improve approximation
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return close < 10 && close > -10;
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});
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// TODO try to catch this earlier when scrollTop indicates the last page anyway
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if (!result.length) {
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result = this.element.children(":first");
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}
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this.activate(event, result);
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} else {
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this.activate(event, this.element.children(!this.active || this.first() ? ":last" : ":first"));
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}
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},
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hasScroll: function() {
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return this.element.height() < this.element.attr("scrollHeight");
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},
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|
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select: function( event ) {
|
|
this._trigger("selected", event, { item: this.active });
|
|
}
|
|
});
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|
|
|
}(jQuery));
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|
|