root / drupal7 / sites / all / modules / jquery_update / replace / ui / ui / jquery.ui.autocomplete.js @ 503b3f7b
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/*!
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* jQuery UI Autocomplete 1.10.2
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* http://jqueryui.com
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*
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* Copyright 2013 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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* http://api.jqueryui.com/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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* jquery.ui.menu.js
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*/
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(function( $, undefined ) { |
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// used to prevent race conditions with remote data sources
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var requestIndex = 0; |
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|
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$.widget( "ui.autocomplete", { |
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version: "1.10.2", |
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defaultElement: "<input>", |
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options: {
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appendTo: null, |
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autoFocus: false, |
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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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// callbacks
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change: null, |
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close: null, |
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focus: null, |
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open: null, |
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response: null, |
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search: null, |
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select: null |
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}, |
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pending: 0, |
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_create: function() { |
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// Some browsers only repeat keydown events, not keypress events,
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// so we use the suppressKeyPress flag to determine if we've already
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// handled the keydown event. #7269
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// Unfortunately the code for & in keypress is the same as the up arrow,
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// so we use the suppressKeyPressRepeat flag to avoid handling keypress
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// events when we know the keydown event was used to modify the
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// search term. #7799
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var suppressKeyPress, suppressKeyPressRepeat, suppressInput,
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nodeName = this.element[0].nodeName.toLowerCase(), |
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isTextarea = nodeName === "textarea",
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isInput = nodeName === "input";
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this.isMultiLine =
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// Textareas are always multi-line
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isTextarea ? true :
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// Inputs are always single-line, even if inside a contentEditable element
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// IE also treats inputs as contentEditable
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isInput ? false :
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// All other element types are determined by whether or not they're contentEditable
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this.element.prop( "isContentEditable" ); |
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|
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this.valueMethod = this.element[ isTextarea || isInput ? "val" : "text" ]; |
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this.isNewMenu = true; |
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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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this._on( this.element, { |
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keydown: function( event ) { |
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/*jshint maxcomplexity:15*/
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if ( this.element.prop( "readOnly" ) ) { |
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suppressKeyPress = true;
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suppressInput = true;
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suppressKeyPressRepeat = true;
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return;
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} |
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suppressKeyPress = false;
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suppressInput = false;
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suppressKeyPressRepeat = false;
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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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suppressKeyPress = true;
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this._move( "previousPage", event ); |
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break;
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case keyCode.PAGE_DOWN:
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suppressKeyPress = true;
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this._move( "nextPage", event ); |
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break;
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case keyCode.UP:
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suppressKeyPress = true;
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this._keyEvent( "previous", event ); |
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break;
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case keyCode.DOWN:
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suppressKeyPress = true;
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this._keyEvent( "next", event ); |
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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 and has focus
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if ( this.menu.active ) { |
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// #6055 - Opera still allows the keypress to occur
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// which causes forms to submit
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suppressKeyPress = true;
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event.preventDefault(); |
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this.menu.select( event );
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} |
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break;
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case keyCode.TAB:
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if ( this.menu.active ) { |
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this.menu.select( event );
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} |
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break;
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case keyCode.ESCAPE:
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if ( this.menu.element.is( ":visible" ) ) { |
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this._value( this.term ); |
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this.close( event );
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// Different browsers have different default behavior for escape
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// Single press can mean undo or clear
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// Double press in IE means clear the whole form
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event.preventDefault(); |
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} |
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break;
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default:
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suppressKeyPressRepeat = true;
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// search timeout should be triggered before the input value is changed
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this._searchTimeout( event );
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break;
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} |
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}, |
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keypress: function( event ) { |
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if ( suppressKeyPress ) {
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suppressKeyPress = false;
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event.preventDefault(); |
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return;
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} |
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if ( suppressKeyPressRepeat ) {
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return;
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} |
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// replicate some key handlers to allow them to repeat in Firefox and Opera
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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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this._move( "previousPage", event ); |
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break;
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case keyCode.PAGE_DOWN:
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this._move( "nextPage", event ); |
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break;
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case keyCode.UP:
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this._keyEvent( "previous", event ); |
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break;
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case keyCode.DOWN:
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this._keyEvent( "next", event ); |
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break;
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} |
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}, |
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input: function( event ) { |
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if ( suppressInput ) {
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suppressInput = false;
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event.preventDefault(); |
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return;
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} |
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this._searchTimeout( event );
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}, |
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focus: function() { |
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this.selectedItem = null; |
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this.previous = this._value(); |
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}, |
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blur: function( event ) { |
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if ( this.cancelBlur ) { |
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delete this.cancelBlur; |
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return;
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} |
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clearTimeout( this.searching );
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this.close( event );
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this._change( event );
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} |
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}); |
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this._initSource();
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this.menu = $( "<ul>" ) |
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.addClass( "ui-autocomplete ui-front" )
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.appendTo( this._appendTo() )
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.menu({
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// custom key handling for now
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input: $(), |
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// disable ARIA support, the live region takes care of that
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role: null |
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}) |
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.hide() |
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.data( "ui-menu" );
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this._on( this.menu.element, { |
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mousedown: function( event ) { |
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// prevent moving focus out of the text field
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event.preventDefault(); |
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// IE doesn't prevent moving focus even with event.preventDefault()
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// so we set a flag to know when we should ignore the blur event
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this.cancelBlur = true; |
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this._delay(function() { |
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delete this.cancelBlur; |
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}); |
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// clicking on the scrollbar causes focus to shift to the body
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// but we can't detect a mouseup or a click immediately afterward
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// so we have to track the next mousedown and close the menu if
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// the user clicks somewhere outside of the autocomplete
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var menuElement = this.menu.element[ 0 ]; |
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if ( !$( event.target ).closest( ".ui-menu-item" ).length ) { |
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this._delay(function() { |
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var that = this; |
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this.document.one( "mousedown", function( event ) { |
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if ( event.target !== that.element[ 0 ] && |
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event.target !== menuElement && |
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!$.contains( menuElement, event.target ) ) {
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that.close(); |
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} |
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}); |
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}); |
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} |
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}, |
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menufocus: function( event, ui ) { |
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// support: Firefox
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// Prevent accidental activation of menu items in Firefox (#7024 #9118)
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if ( this.isNewMenu ) { |
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this.isNewMenu = false; |
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if ( event.originalEvent && /^mouse/.test( event.originalEvent.type ) ) { |
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this.menu.blur();
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this.document.one( "mousemove", function() { |
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$( event.target ).trigger( event.originalEvent );
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}); |
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return;
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} |
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} |
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var item = ui.item.data( "ui-autocomplete-item" ); |
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if ( false !== this._trigger( "focus", event, { 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 ( event.originalEvent && /^key/.test( event.originalEvent.type ) ) { |
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this._value( item.value );
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} |
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} else {
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// Normally the input is populated with the item's value as the
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// menu is navigated, causing screen readers to notice a change and
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// announce the item. Since the focus event was canceled, this doesn't
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// happen, so we update the live region so that screen readers can
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// still notice the change and announce it.
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this.liveRegion.text( item.value );
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} |
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}, |
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menuselect: function( event, ui ) { |
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var item = ui.item.data( "ui-autocomplete-item" ), |
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previous = this.previous;
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|
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// only trigger when focus was lost (click on menu)
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if ( this.element[0] !== this.document[0].activeElement ) { |
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this.element.focus();
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this.previous = previous;
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// #6109 - IE triggers two focus events and the second
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// is asynchronous, so we need to reset the previous
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// term synchronously and asynchronously :-(
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this._delay(function() { |
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this.previous = previous;
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this.selectedItem = item;
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}); |
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} |
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|
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if ( false !== this._trigger( "select", event, { item: item } ) ) { |
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this._value( item.value );
|
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} |
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// reset the term after the select event
|
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// this allows custom select handling to work properly
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this.term = this._value(); |
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|
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this.close( event );
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this.selectedItem = item;
|
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} |
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}); |
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|
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this.liveRegion = $( "<span>", { |
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role: "status", |
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"aria-live": "polite" |
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}) |
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.addClass( "ui-helper-hidden-accessible" )
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.insertAfter( this.element );
|
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|
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// turning off autocomplete prevents the browser from remembering the
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// value when navigating through history, so we re-enable autocomplete
|
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// if the page is unloaded before the widget is destroyed. #7790
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this._on( this.window, { |
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beforeunload: function() { |
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this.element.removeAttr( "autocomplete" ); |
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} |
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}); |
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}, |
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|
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_destroy: function() { |
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clearTimeout( this.searching );
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this.element
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.removeClass( "ui-autocomplete-input" )
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.removeAttr( "autocomplete" );
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this.menu.element.remove();
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this.liveRegion.remove();
|
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}, |
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|
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_setOption: function( key, value ) { |
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this._super( key, value );
|
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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( this._appendTo() ); |
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} |
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if ( key === "disabled" && value && this.xhr ) { |
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this.xhr.abort();
|
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} |
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}, |
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|
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_appendTo: function() { |
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var element = this.options.appendTo; |
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|
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if ( element ) {
|
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element = element.jquery || element.nodeType ? |
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$( element ) :
|
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this.document.find( element ).eq( 0 ); |
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} |
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|
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if ( !element ) {
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element = this.element.closest( ".ui-front" ); |
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} |
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|
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if ( !element.length ) {
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element = this.document[0].body; |
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} |
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|
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return element;
|
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}, |
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|
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_initSource: function() { |
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var array, url,
|
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that = this;
|
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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 ( that.xhr ) {
|
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that.xhr.abort(); |
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} |
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that.xhr = $.ajax({
|
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url: url,
|
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data: request,
|
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dataType: "json", |
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success: function( data ) { |
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response( data ); |
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}, |
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error: function() { |
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response( [] ); |
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} |
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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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|
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_searchTimeout: function( event ) { |
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clearTimeout( this.searching );
|
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this.searching = this._delay(function() { |
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// only search if the value has changed
|
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if ( this.term !== this._value() ) { |
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this.selectedItem = null; |
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this.search( null, event ); |
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} |
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}, this.options.delay );
|
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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._value(); |
| 399 |
|
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// always save the actual value, not the one passed as an argument
|
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this.term = this._value(); |
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|
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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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|
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if ( this._trigger( "search", event ) === false ) { |
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return;
|
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} |
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|
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return this._search( value ); |
| 412 |
}, |
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|
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_search: function( value ) { |
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this.pending++;
|
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this.element.addClass( "ui-autocomplete-loading" ); |
| 417 |
this.cancelSearch = false; |
| 418 |
|
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this.source( { term: value }, this._response() ); |
| 420 |
}, |
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|
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_response: function() { |
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var that = this, |
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index = ++requestIndex; |
| 425 |
|
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return function( content ) { |
| 427 |
if ( index === requestIndex ) {
|
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that.__response( content ); |
| 429 |
} |
| 430 |
|
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that.pending--; |
| 432 |
if ( !that.pending ) {
|
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that.element.removeClass( "ui-autocomplete-loading" );
|
| 434 |
} |
| 435 |
}; |
| 436 |
}, |
| 437 |
|
| 438 |
__response: function( content ) { |
| 439 |
if ( content ) {
|
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content = this._normalize( content );
|
| 441 |
} |
| 442 |
this._trigger( "response", null, { content: content } ); |
| 443 |
if ( !this.options.disabled && content && content.length && !this.cancelSearch ) { |
| 444 |
this._suggest( content );
|
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this._trigger( "open" ); |
| 446 |
} else {
|
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// use ._close() instead of .close() so we don't cancel future searches
|
| 448 |
this._close();
|
| 449 |
} |
| 450 |
}, |
| 451 |
|
| 452 |
close: function( event ) { |
| 453 |
this.cancelSearch = true; |
| 454 |
this._close( event );
|
| 455 |
}, |
| 456 |
|
| 457 |
_close: function( event ) { |
| 458 |
if ( this.menu.element.is( ":visible" ) ) { |
| 459 |
this.menu.element.hide();
|
| 460 |
this.menu.blur();
|
| 461 |
this.isNewMenu = true; |
| 462 |
this._trigger( "close", event ); |
| 463 |
} |
| 464 |
}, |
| 465 |
|
| 466 |
_change: function( event ) { |
| 467 |
if ( this.previous !== this._value() ) { |
| 468 |
this._trigger( "change", event, { item: this.selectedItem } ); |
| 469 |
} |
| 470 |
}, |
| 471 |
|
| 472 |
_normalize: function( items ) { |
| 473 |
// assume all items have the right format when the first item is complete
|
| 474 |
if ( items.length && items[0].label && items[0].value ) { |
| 475 |
return items;
|
| 476 |
} |
| 477 |
return $.map( items, function( item ) { |
| 478 |
if ( typeof item === "string" ) { |
| 479 |
return {
|
| 480 |
label: item,
|
| 481 |
value: item
|
| 482 |
}; |
| 483 |
} |
| 484 |
return $.extend({ |
| 485 |
label: item.label || item.value,
|
| 486 |
value: item.value || item.label
|
| 487 |
}, item ); |
| 488 |
}); |
| 489 |
}, |
| 490 |
|
| 491 |
_suggest: function( items ) { |
| 492 |
var ul = this.menu.element.empty(); |
| 493 |
this._renderMenu( ul, items );
|
| 494 |
this.isNewMenu = true; |
| 495 |
this.menu.refresh();
|
| 496 |
|
| 497 |
// size and position menu
|
| 498 |
ul.show(); |
| 499 |
this._resizeMenu();
|
| 500 |
ul.position( $.extend({
|
| 501 |
of: this.element |
| 502 |
}, this.options.position ));
|
| 503 |
|
| 504 |
if ( this.options.autoFocus ) { |
| 505 |
this.menu.next();
|
| 506 |
} |
| 507 |
}, |
| 508 |
|
| 509 |
_resizeMenu: function() { |
| 510 |
var ul = this.menu.element; |
| 511 |
ul.outerWidth( Math.max( |
| 512 |
// Firefox wraps long text (possibly a rounding bug)
|
| 513 |
// so we add 1px to avoid the wrapping (#7513)
|
| 514 |
ul.width( "" ).outerWidth() + 1, |
| 515 |
this.element.outerWidth()
|
| 516 |
) ); |
| 517 |
}, |
| 518 |
|
| 519 |
_renderMenu: function( ul, items ) { |
| 520 |
var that = this; |
| 521 |
$.each( items, function( index, item ) { |
| 522 |
that._renderItemData( ul, item ); |
| 523 |
}); |
| 524 |
}, |
| 525 |
|
| 526 |
_renderItemData: function( ul, item ) { |
| 527 |
return this._renderItem( ul, item ).data( "ui-autocomplete-item", item ); |
| 528 |
}, |
| 529 |
|
| 530 |
_renderItem: function( ul, item ) { |
| 531 |
return $( "<li>" ) |
| 532 |
.append( $( "<a>" ).text( item.label ) ) |
| 533 |
.appendTo( ul ); |
| 534 |
}, |
| 535 |
|
| 536 |
_move: function( direction, event ) { |
| 537 |
if ( !this.menu.element.is( ":visible" ) ) { |
| 538 |
this.search( null, event ); |
| 539 |
return;
|
| 540 |
} |
| 541 |
if ( this.menu.isFirstItem() && /^previous/.test( direction ) || |
| 542 |
this.menu.isLastItem() && /^next/.test( direction ) ) { |
| 543 |
this._value( this.term ); |
| 544 |
this.menu.blur();
|
| 545 |
return;
|
| 546 |
} |
| 547 |
this.menu[ direction ]( event );
|
| 548 |
}, |
| 549 |
|
| 550 |
widget: function() { |
| 551 |
return this.menu.element; |
| 552 |
}, |
| 553 |
|
| 554 |
_value: function() { |
| 555 |
return this.valueMethod.apply( this.element, arguments ); |
| 556 |
}, |
| 557 |
|
| 558 |
_keyEvent: function( keyEvent, event ) { |
| 559 |
if ( !this.isMultiLine || this.menu.element.is( ":visible" ) ) { |
| 560 |
this._move( keyEvent, event );
|
| 561 |
|
| 562 |
// prevents moving cursor to beginning/end of the text field in some browsers
|
| 563 |
event.preventDefault(); |
| 564 |
} |
| 565 |
} |
| 566 |
}); |
| 567 |
|
| 568 |
$.extend( $.ui.autocomplete, { |
| 569 |
escapeRegex: function( value ) { |
| 570 |
return value.replace(/[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&"); |
| 571 |
}, |
| 572 |
filter: function(array, term) { |
| 573 |
var matcher = new RegExp( $.ui.autocomplete.escapeRegex(term), "i" ); |
| 574 |
return $.grep( array, function(value) { |
| 575 |
return matcher.test( value.label || value.value || value );
|
| 576 |
}); |
| 577 |
} |
| 578 |
}); |
| 579 |
|
| 580 |
|
| 581 |
// live region extension, adding a `messages` option
|
| 582 |
// NOTE: This is an experimental API. We are still investigating
|
| 583 |
// a full solution for string manipulation and internationalization.
|
| 584 |
$.widget( "ui.autocomplete", $.ui.autocomplete, { |
| 585 |
options: {
|
| 586 |
messages: {
|
| 587 |
noResults: "No search results.", |
| 588 |
results: function( amount ) { |
| 589 |
return amount + ( amount > 1 ? " results are" : " result is" ) + |
| 590 |
" available, use up and down arrow keys to navigate.";
|
| 591 |
} |
| 592 |
} |
| 593 |
}, |
| 594 |
|
| 595 |
__response: function( content ) { |
| 596 |
var message;
|
| 597 |
this._superApply( arguments ); |
| 598 |
if ( this.options.disabled || this.cancelSearch ) { |
| 599 |
return;
|
| 600 |
} |
| 601 |
if ( content && content.length ) {
|
| 602 |
message = this.options.messages.results( content.length );
|
| 603 |
} else {
|
| 604 |
message = this.options.messages.noResults;
|
| 605 |
} |
| 606 |
this.liveRegion.text( message );
|
| 607 |
} |
| 608 |
}); |
| 609 |
|
| 610 |
}( jQuery )); |