--- /dev/null
+/*!
+ * jQuery UI Autocomplete 1.9.2
+ * http://jqueryui.com
+ *
+ * Copyright 2012 jQuery Foundation and other contributors
+ * Released under the MIT license.
+ * http://jquery.org/license
+ *
+ * http://api.jqueryui.com/autocomplete/
+ *
+ * Depends:
+ * jquery.ui.core.js
+ * jquery.ui.widget.js
+ * jquery.ui.position.js
+ * jquery.ui.menu.js
+ */
+(function( $, undefined ) {
+
+// used to prevent race conditions with remote data sources
+var requestIndex = 0;
+
+$.widget( "ui.autocomplete", {
+ version: "1.9.2",
+ defaultElement: "<input>",
+ options: {
+ appendTo: "body",
+ autoFocus: false,
+ delay: 300,
+ minLength: 1,
+ position: {
+ my: "left top",
+ at: "left bottom",
+ collision: "none"
+ },
+ source: null,
+
+ // callbacks
+ change: null,
+ close: null,
+ focus: null,
+ open: null,
+ response: null,
+ search: null,
+ select: null
+ },
+
+ pending: 0,
+
+ _create: function() {
+ // Some browsers only repeat keydown events, not keypress events,
+ // so we use the suppressKeyPress flag to determine if we've already
+ // handled the keydown event. #7269
+ // Unfortunately the code for & in keypress is the same as the up arrow,
+ // so we use the suppressKeyPressRepeat flag to avoid handling keypress
+ // events when we know the keydown event was used to modify the
+ // search term. #7799
+ var suppressKeyPress, suppressKeyPressRepeat, suppressInput;
+
+ this.isMultiLine = this._isMultiLine();
+ this.valueMethod = this.element[ this.element.is( "input,textarea" ) ? "val" : "text" ];
+ this.isNewMenu = true;
+
+ this.element
+ .addClass( "ui-autocomplete-input" )
+ .attr( "autocomplete", "off" );
+
+ this._on( this.element, {
+ keydown: function( event ) {
+ if ( this.element.prop( "readOnly" ) ) {
+ suppressKeyPress = true;
+ suppressInput = true;
+ suppressKeyPressRepeat = true;
+ return;
+ }
+
+ suppressKeyPress = false;
+ suppressInput = false;
+ suppressKeyPressRepeat = false;
+ var keyCode = $.ui.keyCode;
+ switch( event.keyCode ) {
+ case keyCode.PAGE_UP:
+ suppressKeyPress = true;
+ this._move( "previousPage", event );
+ break;
+ case keyCode.PAGE_DOWN:
+ suppressKeyPress = true;
+ this._move( "nextPage", event );
+ break;
+ case keyCode.UP:
+ suppressKeyPress = true;
+ this._keyEvent( "previous", event );
+ break;
+ case keyCode.DOWN:
+ suppressKeyPress = true;
+ this._keyEvent( "next", event );
+ break;
+ case keyCode.ENTER:
+ case keyCode.NUMPAD_ENTER:
+ // when menu is open and has focus
+ if ( this.menu.active ) {
+ // #6055 - Opera still allows the keypress to occur
+ // which causes forms to submit
+ suppressKeyPress = true;
+ event.preventDefault();
+ this.menu.select( event );
+ }
+ break;
+ case keyCode.TAB:
+ if ( this.menu.active ) {
+ this.menu.select( event );
+ }
+ break;
+ case keyCode.ESCAPE:
+ if ( this.menu.element.is( ":visible" ) ) {
+ this._value( this.term );
+ this.close( event );
+ // Different browsers have different default behavior for escape
+ // Single press can mean undo or clear
+ // Double press in IE means clear the whole form
+ event.preventDefault();
+ }
+ break;
+ default:
+ suppressKeyPressRepeat = true;
+ // search timeout should be triggered before the input value is changed
+ this._searchTimeout( event );
+ break;
+ }
+ },
+ keypress: function( event ) {
+ if ( suppressKeyPress ) {
+ suppressKeyPress = false;
+ event.preventDefault();
+ return;
+ }
+ if ( suppressKeyPressRepeat ) {
+ return;
+ }
+
+ // replicate some key handlers to allow them to repeat in Firefox and Opera
+ var keyCode = $.ui.keyCode;
+ switch( event.keyCode ) {
+ case keyCode.PAGE_UP:
+ this._move( "previousPage", event );
+ break;
+ case keyCode.PAGE_DOWN:
+ this._move( "nextPage", event );
+ break;
+ case keyCode.UP:
+ this._keyEvent( "previous", event );
+ break;
+ case keyCode.DOWN:
+ this._keyEvent( "next", event );
+ break;
+ }
+ },
+ input: function( event ) {
+ if ( suppressInput ) {
+ suppressInput = false;
+ event.preventDefault();
+ return;
+ }
+ this._searchTimeout( event );
+ },
+ focus: function() {
+ this.selectedItem = null;
+ this.previous = this._value();
+ },
+ blur: function( event ) {
+ if ( this.cancelBlur ) {
+ delete this.cancelBlur;
+ return;
+ }
+
+ clearTimeout( this.searching );
+ this.close( event );
+ this._change( event );
+ }
+ });
+
+ this._initSource();
+ this.menu = $( "<ul>" )
+ .addClass( "ui-autocomplete" )
+ .appendTo( this.document.find( this.options.appendTo || "body" )[ 0 ] )
+ .menu({
+ // custom key handling for now
+ input: $(),
+ // disable ARIA support, the live region takes care of that
+ role: null
+ })
+ .zIndex( this.element.zIndex() + 1 )
+ .hide()
+ .data( "menu" );
+
+ this._on( this.menu.element, {
+ mousedown: function( event ) {
+ // prevent moving focus out of the text field
+ event.preventDefault();
+
+ // IE doesn't prevent moving focus even with event.preventDefault()
+ // so we set a flag to know when we should ignore the blur event
+ this.cancelBlur = true;
+ this._delay(function() {
+ delete this.cancelBlur;
+ });
+
+ // clicking on the scrollbar causes focus to shift to the body
+ // but we can't detect a mouseup or a click immediately afterward
+ // so we have to track the next mousedown and close the menu if
+ // the user clicks somewhere outside of the autocomplete
+ var menuElement = this.menu.element[ 0 ];
+ if ( !$( event.target ).closest( ".ui-menu-item" ).length ) {
+ this._delay(function() {
+ var that = this;
+ this.document.one( "mousedown", function( event ) {
+ if ( event.target !== that.element[ 0 ] &&
+ event.target !== menuElement &&
+ !$.contains( menuElement, event.target ) ) {
+ that.close();
+ }
+ });
+ });
+ }
+ },
+ menufocus: function( event, ui ) {
+ // #7024 - Prevent accidental activation of menu items in Firefox
+ if ( this.isNewMenu ) {
+ this.isNewMenu = false;
+ if ( event.originalEvent && /^mouse/.test( event.originalEvent.type ) ) {
+ this.menu.blur();
+
+ this.document.one( "mousemove", function() {
+ $( event.target ).trigger( event.originalEvent );
+ });
+
+ return;
+ }
+ }
+
+ // back compat for _renderItem using item.autocomplete, via #7810
+ // TODO remove the fallback, see #8156
+ var item = ui.item.data( "ui-autocomplete-item" ) || ui.item.data( "item.autocomplete" );
+ if ( false !== this._trigger( "focus", event, { item: item } ) ) {
+ // use value to match what will end up in the input, if it was a key event
+ if ( event.originalEvent && /^key/.test( event.originalEvent.type ) ) {
+ this._value( item.value );
+ }
+ } else {
+ // Normally the input is populated with the item's value as the
+ // menu is navigated, causing screen readers to notice a change and
+ // announce the item. Since the focus event was canceled, this doesn't
+ // happen, so we update the live region so that screen readers can
+ // still notice the change and announce it.
+ this.liveRegion.text( item.value );
+ }
+ },
+ menuselect: function( event, ui ) {
+ // back compat for _renderItem using item.autocomplete, via #7810
+ // TODO remove the fallback, see #8156
+ var item = ui.item.data( "ui-autocomplete-item" ) || ui.item.data( "item.autocomplete" ),
+ previous = this.previous;
+
+ // only trigger when focus was lost (click on menu)
+ if ( this.element[0] !== this.document[0].activeElement ) {
+ this.element.focus();
+ this.previous = previous;
+ // #6109 - IE triggers two focus events and the second
+ // is asynchronous, so we need to reset the previous
+ // term synchronously and asynchronously :-(
+ this._delay(function() {
+ this.previous = previous;
+ this.selectedItem = item;
+ });
+ }
+
+ if ( false !== this._trigger( "select", event, { item: item } ) ) {
+ this._value( item.value );
+ }
+ // reset the term after the select event
+ // this allows custom select handling to work properly
+ this.term = this._value();
+
+ this.close( event );
+ this.selectedItem = item;
+ }
+ });
+
+ this.liveRegion = $( "<span>", {
+ role: "status",
+ "aria-live": "polite"
+ })
+ .addClass( "ui-helper-hidden-accessible" )
+ .insertAfter( this.element );
+
+ if ( $.fn.bgiframe ) {
+ this.menu.element.bgiframe();
+ }
+
+ // turning off autocomplete prevents the browser from remembering the
+ // value when navigating through history, so we re-enable autocomplete
+ // if the page is unloaded before the widget is destroyed. #7790
+ this._on( this.window, {
+ beforeunload: function() {
+ this.element.removeAttr( "autocomplete" );
+ }
+ });
+ },
+
+ _destroy: function() {
+ clearTimeout( this.searching );
+ this.element
+ .removeClass( "ui-autocomplete-input" )
+ .removeAttr( "autocomplete" );
+ this.menu.element.remove();
+ this.liveRegion.remove();
+ },
+
+ _setOption: function( key, value ) {
+ this._super( key, value );
+ if ( key === "source" ) {
+ this._initSource();
+ }
+ if ( key === "appendTo" ) {
+ this.menu.element.appendTo( this.document.find( value || "body" )[0] );
+ }
+ if ( key === "disabled" && value && this.xhr ) {
+ this.xhr.abort();
+ }
+ },
+
+ _isMultiLine: function() {
+ // Textareas are always multi-line
+ if ( this.element.is( "textarea" ) ) {
+ return true;
+ }
+ // Inputs are always single-line, even if inside a contentEditable element
+ // IE also treats inputs as contentEditable
+ if ( this.element.is( "input" ) ) {
+ return false;
+ }
+ // All other element types are determined by whether or not they're contentEditable
+ return this.element.prop( "isContentEditable" );
+ },
+
+ _initSource: function() {
+ var array, url,
+ that = this;
+ if ( $.isArray(this.options.source) ) {
+ array = this.options.source;
+ this.source = function( request, response ) {
+ response( $.ui.autocomplete.filter( array, request.term ) );
+ };
+ } else if ( typeof this.options.source === "string" ) {
+ url = this.options.source;
+ this.source = function( request, response ) {
+ if ( that.xhr ) {
+ that.xhr.abort();
+ }
+ that.xhr = $.ajax({
+ url: url,
+ data: request,
+ dataType: "json",
+ success: function( data ) {
+ response( data );
+ },
+ error: function() {
+ response( [] );
+ }
+ });
+ };
+ } else {
+ this.source = this.options.source;
+ }
+ },
+
+ _searchTimeout: function( event ) {
+ clearTimeout( this.searching );
+ this.searching = this._delay(function() {
+ // only search if the value has changed
+ if ( this.term !== this._value() ) {
+ this.selectedItem = null;
+ this.search( null, event );
+ }
+ }, this.options.delay );
+ },
+
+ search: function( value, event ) {
+ value = value != null ? value : this._value();
+
+ // always save the actual value, not the one passed as an argument
+ this.term = this._value();
+
+ if ( value.length < this.options.minLength ) {
+ return this.close( event );
+ }
+
+ if ( this._trigger( "search", event ) === false ) {
+ return;
+ }
+
+ return this._search( value );
+ },
+
+ _search: function( value ) {
+ this.pending++;
+ this.element.addClass( "ui-autocomplete-loading" );
+ this.cancelSearch = false;
+
+ this.source( { term: value }, this._response() );
+ },
+
+ _response: function() {
+ var that = this,
+ index = ++requestIndex;
+
+ return function( content ) {
+ if ( index === requestIndex ) {
+ that.__response( content );
+ }
+
+ that.pending--;
+ if ( !that.pending ) {
+ that.element.removeClass( "ui-autocomplete-loading" );
+ }
+ };
+ },
+
+ __response: function( content ) {
+ if ( content ) {
+ content = this._normalize( content );
+ }
+ this._trigger( "response", null, { content: content } );
+ if ( !this.options.disabled && content && content.length && !this.cancelSearch ) {
+ this._suggest( content );
+ this._trigger( "open" );
+ } else {
+ // use ._close() instead of .close() so we don't cancel future searches
+ this._close();
+ }
+ },
+
+ close: function( event ) {
+ this.cancelSearch = true;
+ this._close( event );
+ },
+
+ _close: function( event ) {
+ if ( this.menu.element.is( ":visible" ) ) {
+ this.menu.element.hide();
+ this.menu.blur();
+ this.isNewMenu = true;
+ this._trigger( "close", event );
+ }
+ },
+
+ _change: function( event ) {
+ if ( this.previous !== this._value() ) {
+ this._trigger( "change", event, { item: this.selectedItem } );
+ }
+ },
+
+ _normalize: function( items ) {
+ // assume all items have the right format when the first item is complete
+ if ( items.length && items[0].label && items[0].value ) {
+ return items;
+ }
+ return $.map( items, function( item ) {
+ if ( typeof item === "string" ) {
+ return {
+ label: item,
+ value: item
+ };
+ }
+ return $.extend({
+ label: item.label || item.value,
+ value: item.value || item.label
+ }, item );
+ });
+ },
+
+ _suggest: function( items ) {
+ var ul = this.menu.element
+ .empty()
+ .zIndex( this.element.zIndex() + 1 );
+ this._renderMenu( ul, items );
+ this.menu.refresh();
+
+ // size and position menu
+ ul.show();
+ this._resizeMenu();
+ ul.position( $.extend({
+ of: this.element
+ }, this.options.position ));
+
+ if ( this.options.autoFocus ) {
+ this.menu.next();
+ }
+ },
+
+ _resizeMenu: function() {
+ var ul = this.menu.element;
+ ul.outerWidth( Math.max(
+ // Firefox wraps long text (possibly a rounding bug)
+ // so we add 1px to avoid the wrapping (#7513)
+ ul.width( "" ).outerWidth() + 1,
+ this.element.outerWidth()
+ ) );
+ },
+
+ _renderMenu: function( ul, items ) {
+ var that = this;
+ $.each( items, function( index, item ) {
+ that._renderItemData( ul, item );
+ });
+ },
+
+ _renderItemData: function( ul, item ) {
+ return this._renderItem( ul, item ).data( "ui-autocomplete-item", item );
+ },
+
+ _renderItem: function( ul, item ) {
+ return $( "<li>" )
+ .append( $( "<a>" ).text( item.label ) )
+ .appendTo( ul );
+ },
+
+ _move: function( direction, event ) {
+ if ( !this.menu.element.is( ":visible" ) ) {
+ this.search( null, event );
+ return;
+ }
+ if ( this.menu.isFirstItem() && /^previous/.test( direction ) ||
+ this.menu.isLastItem() && /^next/.test( direction ) ) {
+ this._value( this.term );
+ this.menu.blur();
+ return;
+ }
+ this.menu[ direction ]( event );
+ },
+
+ widget: function() {
+ return this.menu.element;
+ },
+
+ _value: function() {
+ return this.valueMethod.apply( this.element, arguments );
+ },
+
+ _keyEvent: function( keyEvent, event ) {
+ if ( !this.isMultiLine || this.menu.element.is( ":visible" ) ) {
+ this._move( keyEvent, event );
+
+ // prevents moving cursor to beginning/end of the text field in some browsers
+ event.preventDefault();
+ }
+ }
+});
+
+$.extend( $.ui.autocomplete, {
+ escapeRegex: function( value ) {
+ return value.replace(/[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&");
+ },
+ filter: function(array, term) {
+ var matcher = new RegExp( $.ui.autocomplete.escapeRegex(term), "i" );
+ return $.grep( array, function(value) {
+ return matcher.test( value.label || value.value || value );
+ });
+ }
+});
+
+
+// live region extension, adding a `messages` option
+// NOTE: This is an experimental API. We are still investigating
+// a full solution for string manipulation and internationalization.
+$.widget( "ui.autocomplete", $.ui.autocomplete, {
+ options: {
+ messages: {
+ noResults: "No search results.",
+ results: function( amount ) {
+ return amount + ( amount > 1 ? " results are" : " result is" ) +
+ " available, use up and down arrow keys to navigate.";
+ }
+ }
+ },
+
+ __response: function( content ) {
+ var message;
+ this._superApply( arguments );
+ if ( this.options.disabled || this.cancelSearch ) {
+ return;
+ }
+ if ( content && content.length ) {
+ message = this.options.messages.results( content.length );
+ } else {
+ message = this.options.messages.noResults;
+ }
+ this.liveRegion.text( message );
+ }
+});
+
+
+}( jQuery ));
scripts.mit.edu / autoinstallsdev / mediawiki.git / blobdiff