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Diffstat (limited to 'resources/lib/jquery.ui/jquery.ui.autocomplete.js')
| -rw-r--r-- | resources/lib/jquery.ui/jquery.ui.autocomplete.js | 602 |
1 files changed, 602 insertions, 0 deletions
diff --git a/resources/lib/jquery.ui/jquery.ui.autocomplete.js b/resources/lib/jquery.ui/jquery.ui.autocomplete.js new file mode 100644 index 00000000..3baed1da --- /dev/null +++ b/resources/lib/jquery.ui/jquery.ui.autocomplete.js @@ -0,0 +1,602 @@ +/*! + * 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 )); |