--- /dev/null
+/**
+ * This plugin provides a generic way to add suggestions to a text box.
+ *
+ * Set options:
+ *
+ * $( '#textbox' ).suggestions( { option1: value1, option2: value2 } );
+ * $( '#textbox' ).suggestions( option, value );
+ *
+ * Get option:
+ *
+ * value = $( '#textbox' ).suggestions( option );
+ *
+ * Initialize:
+ *
+ * $( '#textbox' ).suggestions();
+ *
+ * Uses jQuery.suggestions singleton internally.
+ *
+ * @class jQuery.plugin.suggestions
+ */
+
+/**
+ * @method suggestions
+ * @chainable
+ * @return {jQuery}
+ *
+ * @param {Object} options
+ *
+ * @param {Function} [options.fetch] Callback that should fetch suggestions and set the suggestions
+ * property. Called in context of the text box.
+ * @param {string} options.fetch.query
+ * @param {Function} options.fetch.response Callback to receive the suggestions with
+ * @param {Array} options.fetch.response.suggestions
+ * @param {number} options.fetch.maxRows
+ *
+ * @param {Function} [options.cancel] Callback function to call when any pending asynchronous
+ * suggestions fetches. Called in context of the text box.
+ *
+ * @param {Object} [options.special] Set of callbacks for rendering and selecting.
+ *
+ * @param {Function} options.special.render Called in context of the suggestions-special element.
+ * @param {string} options.special.render.query
+ * @param {Object} options.special.render.context
+ *
+ * @param {Function} options.special.select Called in context of the suggestions-result-current element.
+ * @param {jQuery} options.special.select.$textbox
+ *
+ * @param {Object} [options.result] Set of callbacks for rendering and selecting
+ *
+ * @param {Function} options.result.render Called in context of the suggestions-result element.
+ * @param {string} options.result.render.suggestion
+ * @param {Object} options.result.render.context
+ *
+ * @param {Function} options.result.select Called in context of the suggestions-result-current element.
+ * @param {jQuery} options.result.select.$textbox
+ *
+ * @param {Object} [options.update] Set of callbacks for listening to a change in the text input.
+ *
+ * @param {Function} options.update.before Called right after the user changes the textbox text.
+ * @param {Function} options.update.after Called after results are updated either from the cache or
+ * the API as a result of the user input.
+ *
+ * @param {jQuery} [options.$region=this] The element to place the suggestions below and match width of.
+ *
+ * @param {string[]} [options.suggestions] Array of suggestions to display.
+ *
+ * @param {number} [options.maxRows=10] Maximum number of suggestions to display at one time.
+ * Must be between 1 and 100.
+ *
+ * @param {number} [options.delay=120] Number of milliseconds to wait for the user to stop typing.
+ * Must be between 0 and 1200.
+ *
+ * @param {boolean} [options.cache=false] Whether to cache results from a fetch.
+ *
+ * @param {number} [options.cacheMaxAge=60000] Number of milliseconds to cache results from a fetch.
+ * Must be higher than 1. Defaults to 1 minute.
+ *
+ * @param {boolean} [options.submitOnClick=false] Whether to submit the form containing the textbox
+ * when a suggestion is clicked.
+ *
+ * @param {number} [options.maxExpandFactor=3] Maximum suggestions box width relative to the textbox
+ * width. If set to e.g. 2, the suggestions box will never be grown beyond 2 times the width of
+ * the textbox. Must be higher than 1.
+ *
+ * @param {string} [options.expandFrom=auto] Which direction to offset the suggestion box from.
+ * Values 'start' and 'end' translate to left and right respectively depending on the directionality
+ * of the current document, according to `$( 'html' ).css( 'direction' )`.
+ * Valid values: "left", "right", "start", "end", and "auto".
+ *
+ * @param {boolean} [options.positionFromLeft] Sets `expandFrom=left`, for backwards
+ * compatibility.
+ *
+ * @param {boolean} [options.highlightInput=false] Whether to highlight matched portions of the
+ * input or not.
+ */
+
+( function ( $, mw ) {
+
+ var hasOwn = Object.hasOwnProperty;
+
+ /**
+ * Used by jQuery.plugin.suggestions.
+ *
+ * @class jQuery.suggestions
+ * @singleton
+ * @private
+ */
+ $.suggestions = {
+ /**
+ * Cancel any delayed maybeFetch() call and callback the context so
+ * they can cancel any async fetching if they use AJAX or something.
+ *
+ * @param {Object} context
+ */
+ cancel: function ( context ) {
+ if ( context.data.timerID !== null ) {
+ clearTimeout( context.data.timerID );
+ }
+ if ( $.isFunction( context.config.cancel ) ) {
+ context.config.cancel.call( context.data.$textbox );
+ }
+ },
+
+ /**
+ * Hide the element with suggestions and clean up some state.
+ *
+ * @param {Object} context
+ */
+ hide: function ( context ) {
+ // Remove any highlights, including on "special" items
+ context.data.$container.find( '.suggestions-result-current' ).removeClass( 'suggestions-result-current' );
+ // Hide the container
+ context.data.$container.hide();
+ },
+
+ /**
+ * Restore the text the user originally typed in the textbox, before it
+ * was overwritten by highlight(). This restores the value the currently
+ * displayed suggestions are based on, rather than the value just before
+ * highlight() overwrote it; the former is arguably slightly more sensible.
+ *
+ * @param {Object} context
+ */
+ restore: function ( context ) {
+ context.data.$textbox.val( context.data.prevText );
+ },
+
+ /**
+ * Ask the user-specified callback for new suggestions. Any previous delayed
+ * call to this function still pending will be canceled. If the value in the
+ * textbox is empty or hasn't changed since the last time suggestions were fetched,
+ * this function does nothing.
+ *
+ * @param {Object} context
+ * @param {boolean} delayed Whether or not to delay this by the currently configured amount of time
+ */
+ update: function ( context, delayed ) {
+ function maybeFetch() {
+ var val = context.data.$textbox.val(),
+ cache = context.data.cache,
+ cacheHit;
+
+ if ( typeof context.config.update.before === 'function' ) {
+ context.config.update.before.call( context.data.$textbox );
+ }
+
+ // Only fetch if the value in the textbox changed and is not empty, or if the results were hidden
+ // if the textbox is empty then clear the result div, but leave other settings intouched
+ if ( val.length === 0 ) {
+ $.suggestions.hide( context );
+ context.data.prevText = '';
+ } else if (
+ val !== context.data.prevText ||
+ !context.data.$container.is( ':visible' )
+ ) {
+ context.data.prevText = val;
+ // Try cache first
+ if ( context.config.cache && hasOwn.call( cache, val ) ) {
+ if ( mw.now() - cache[ val ].timestamp < context.config.cacheMaxAge ) {
+ context.data.$textbox.suggestions( 'suggestions', cache[ val ].suggestions );
+ if ( typeof context.config.update.after === 'function' ) {
+ context.config.update.after.call( context.data.$textbox, cache[ val ].metadata );
+ }
+ cacheHit = true;
+ } else {
+ // Cache expired
+ delete cache[ val ];
+ }
+ }
+ if ( !cacheHit && typeof context.config.fetch === 'function' ) {
+ context.config.fetch.call(
+ context.data.$textbox,
+ val,
+ function ( suggestions, metadata ) {
+ suggestions = suggestions.slice( 0, context.config.maxRows );
+ context.data.$textbox.suggestions( 'suggestions', suggestions );
+ if ( typeof context.config.update.after === 'function' ) {
+ context.config.update.after.call( context.data.$textbox, metadata );
+ }
+ if ( context.config.cache ) {
+ cache[ val ] = {
+ suggestions: suggestions,
+ metadata: metadata,
+ timestamp: mw.now()
+ };
+ }
+ },
+ context.config.maxRows
+ );
+ }
+ }
+
+ // Always update special rendering
+ $.suggestions.special( context );
+ }
+
+ // Cancels any delayed maybeFetch call, and invokes context.config.cancel.
+ $.suggestions.cancel( context );
+
+ if ( delayed ) {
+ // To avoid many started/aborted requests while typing, we're gonna take a short
+ // break before trying to fetch data.
+ context.data.timerID = setTimeout( maybeFetch, context.config.delay );
+ } else {
+ maybeFetch();
+ }
+ },
+
+ /**
+ * @param {Object} context
+ */
+ special: function ( context ) {
+ // Allow custom rendering - but otherwise don't do any rendering
+ if ( typeof context.config.special.render === 'function' ) {
+ // Wait for the browser to update the value
+ setTimeout( function () {
+ // Render special
+ var $special = context.data.$container.find( '.suggestions-special' );
+ context.config.special.render.call( $special, context.data.$textbox.val(), context );
+ }, 1 );
+ }
+ },
+
+ /**
+ * Sets the value of a property, and updates the widget accordingly
+ *
+ * @param {Object} context
+ * @param {string} property Name of property
+ * @param {Mixed} value Value to set property with
+ */
+ configure: function ( context, property, value ) {
+ var newCSS,
+ $result, $results, $spanForWidth, childrenWidth,
+ i, expWidth, maxWidth, text;
+
+ // Validate creation using fallback values
+ switch ( property ) {
+ case 'fetch':
+ case 'cancel':
+ case 'special':
+ case 'result':
+ case 'update':
+ case '$region':
+ case 'expandFrom':
+ context.config[ property ] = value;
+ break;
+ case 'suggestions':
+ context.config[ property ] = value;
+ // Update suggestions
+ if ( context.data !== undefined ) {
+ if ( context.data.$textbox.val().length === 0 ) {
+ // Hide the div when no suggestion exist
+ $.suggestions.hide( context );
+ } else {
+ // Rebuild the suggestions list
+ context.data.$container.show();
+ // Update the size and position of the list
+ newCSS = {
+ top: context.config.$region.offset().top + context.config.$region.outerHeight(),
+ bottom: 'auto',
+ width: context.config.$region.outerWidth(),
+ height: 'auto'
+ };
+
+ // Process expandFrom, after this it is set to left or right.
+ context.config.expandFrom = ( function ( expandFrom ) {
+ var regionWidth, docWidth, regionCenter, docCenter,
+ docDir = $( document.documentElement ).css( 'direction' ),
+ $region = context.config.$region;
+
+ // Backwards compatible
+ if ( context.config.positionFromLeft ) {
+ expandFrom = 'left';
+
+ // Catch invalid values, default to 'auto'
+ } else if ( $.inArray( expandFrom, [ 'left', 'right', 'start', 'end', 'auto' ] ) === -1 ) {
+ expandFrom = 'auto';
+ }
+
+ if ( expandFrom === 'auto' ) {
+ if ( $region.data( 'searchsuggest-expand-dir' ) ) {
+ // If the markup explicitly contains a direction, use it.
+ expandFrom = $region.data( 'searchsuggest-expand-dir' );
+ } else {
+ regionWidth = $region.outerWidth();
+ docWidth = $( document ).width();
+ if ( regionWidth > ( 0.85 * docWidth ) ) {
+ // If the input size takes up more than 85% of the document horizontally
+ // expand the suggestions to the writing direction's native end.
+ expandFrom = 'start';
+ } else {
+ // Calculate the center points of the input and document
+ regionCenter = $region.offset().left + regionWidth / 2;
+ docCenter = docWidth / 2;
+ if ( Math.abs( regionCenter - docCenter ) < ( 0.10 * docCenter ) ) {
+ // If the input's center is within 10% of the document center
+ // use the writing direction's native end.
+ expandFrom = 'start';
+ } else {
+ // Otherwise expand the input from the closest side of the page,
+ // towards the side of the page with the most free open space
+ expandFrom = regionCenter > docCenter ? 'right' : 'left';
+ }
+ }
+ }
+ }
+
+ if ( expandFrom === 'start' ) {
+ expandFrom = docDir === 'rtl' ? 'right' : 'left';
+
+ } else if ( expandFrom === 'end' ) {
+ expandFrom = docDir === 'rtl' ? 'left' : 'right';
+ }
+
+ return expandFrom;
+
+ }( context.config.expandFrom ) );
+
+ if ( context.config.expandFrom === 'left' ) {
+ // Expand from left
+ newCSS.left = context.config.$region.offset().left;
+ newCSS.right = 'auto';
+ } else {
+ // Expand from right
+ newCSS.left = 'auto';
+ newCSS.right = $( 'body' ).width() - ( context.config.$region.offset().left + context.config.$region.outerWidth() );
+ }
+
+ context.data.$container.css( newCSS );
+ $results = context.data.$container.children( '.suggestions-results' );
+ $results.empty();
+ expWidth = -1;
+ for ( i = 0; i < context.config.suggestions.length; i++ ) {
+ text = context.config.suggestions[ i ];
+ $result = $( '<div>' )
+ .addClass( 'suggestions-result' )
+ .attr( 'rel', i )
+ .data( 'text', context.config.suggestions[ i ] )
+ .mousemove( function () {
+ context.data.selectedWithMouse = true;
+ $.suggestions.highlight(
+ context,
+ $( this ).closest( '.suggestions-results .suggestions-result' ),
+ false
+ );
+ } )
+ .appendTo( $results );
+ // Allow custom rendering
+ if ( typeof context.config.result.render === 'function' ) {
+ context.config.result.render.call( $result, context.config.suggestions[ i ], context );
+ } else {
+ $result.text( text );
+ }
+
+ if ( context.config.highlightInput ) {
+ $result.highlightText( context.data.prevText, { method: 'prefixHighlight' } );
+ }
+
+ // Widen results box if needed (new width is only calculated here, applied later).
+
+ // The monstrosity below accomplishes two things:
+ // * Wraps the text contents in a DOM element, so that we can know its width. There is
+ // no way to directly access the width of a text node, and we can't use the parent
+ // node width as it has text-overflow: ellipsis; and overflow: hidden; applied to
+ // it, which trims it to a smaller width.
+ // * Temporarily applies position: absolute; to the wrapper to pull it out of normal
+ // document flow. Otherwise the CSS text-overflow: ellipsis; and overflow: hidden;
+ // rules would cause some browsers (at least all versions of IE from 6 to 11) to
+ // still report the "trimmed" width. This should not be done in regular CSS
+ // stylesheets as we don't want this rule to apply to other <span> elements, like
+ // the ones generated by jquery.highlightText.
+ $spanForWidth = $result.wrapInner( '<span>' ).children();
+ childrenWidth = $spanForWidth.css( 'position', 'absolute' ).outerWidth();
+ $spanForWidth.contents().unwrap();
+
+ if ( childrenWidth > $result.width() && childrenWidth > expWidth ) {
+ // factor in any padding, margin, or border space on the parent
+ expWidth = childrenWidth + ( context.data.$container.width() - $result.width() );
+ }
+ }
+
+ // Apply new width for results box, if any
+ if ( expWidth > context.data.$container.width() ) {
+ maxWidth = context.config.maxExpandFactor * context.data.$textbox.width();
+ context.data.$container.width( Math.min( expWidth, maxWidth ) );
+ }
+ }
+ }
+ break;
+ case 'maxRows':
+ context.config[ property ] = Math.max( 1, Math.min( 100, value ) );
+ break;
+ case 'delay':
+ context.config[ property ] = Math.max( 0, Math.min( 1200, value ) );
+ break;
+ case 'cacheMaxAge':
+ context.config[ property ] = Math.max( 1, value );
+ break;
+ case 'maxExpandFactor':
+ context.config[ property ] = Math.max( 1, value );
+ break;
+ case 'cache':
+ case 'submitOnClick':
+ case 'positionFromLeft':
+ case 'highlightInput':
+ context.config[ property ] = !!value;
+ break;
+ }
+ },
+
+ /**
+ * Highlight a result in the results table
+ *
+ * @param {Object} context
+ * @param {jQuery|string} result `<tr>` to highlight, or 'prev' or 'next'
+ * @param {boolean} updateTextbox If true, put the suggestion in the textbox
+ */
+ highlight: function ( context, result, updateTextbox ) {
+ var selected = context.data.$container.find( '.suggestions-result-current' );
+ if ( !result.get || selected.get( 0 ) !== result.get( 0 ) ) {
+ if ( result === 'prev' ) {
+ if ( selected.hasClass( 'suggestions-special' ) ) {
+ result = context.data.$container.find( '.suggestions-result:last' );
+ } else {
+ result = selected.prev();
+ if ( !( result.length && result.hasClass( 'suggestions-result' ) ) ) {
+ // there is something in the DOM between selected element and the wrapper, bypass it
+ result = selected.parents( '.suggestions-results > *' ).prev().find( '.suggestions-result' ).eq( 0 );
+ }
+
+ if ( selected.length === 0 ) {
+ // we are at the beginning, so lets jump to the last item
+ if ( context.data.$container.find( '.suggestions-special' ).html() !== '' ) {
+ result = context.data.$container.find( '.suggestions-special' );
+ } else {
+ result = context.data.$container.find( '.suggestions-results .suggestions-result:last' );
+ }
+ }
+ }
+ } else if ( result === 'next' ) {
+ if ( selected.length === 0 ) {
+ // No item selected, go to the first one
+ result = context.data.$container.find( '.suggestions-results .suggestions-result:first' );
+ if ( result.length === 0 && context.data.$container.find( '.suggestions-special' ).html() !== '' ) {
+ // No suggestion exists, go to the special one directly
+ result = context.data.$container.find( '.suggestions-special' );
+ }
+ } else {
+ result = selected.next();
+ if ( !( result.length && result.hasClass( 'suggestions-result' ) ) ) {
+ // there is something in the DOM between selected element and the wrapper, bypass it
+ result = selected.parents( '.suggestions-results > *' ).next().find( '.suggestions-result' ).eq( 0 );
+ }
+
+ if ( selected.hasClass( 'suggestions-special' ) ) {
+ result = $( [] );
+ } else if (
+ result.length === 0 &&
+ context.data.$container.find( '.suggestions-special' ).html() !== ''
+ ) {
+ // We were at the last item, jump to the specials!
+ result = context.data.$container.find( '.suggestions-special' );
+ }
+ }
+ }
+ selected.removeClass( 'suggestions-result-current' );
+ result.addClass( 'suggestions-result-current' );
+ }
+ if ( updateTextbox ) {
+ if ( result.length === 0 || result.is( '.suggestions-special' ) ) {
+ $.suggestions.restore( context );
+ } else {
+ context.data.$textbox.val( result.data( 'text' ) );
+ // .val() doesn't call any event handlers, so
+ // let the world know what happened
+ context.data.$textbox.change();
+ }
+ context.data.$textbox.trigger( 'change' );
+ }
+ },
+
+ /**
+ * Respond to keypress event
+ *
+ * @param {jQuery.Event} e
+ * @param {Object} context
+ * @param {number} key Code of key pressed
+ */
+ keypress: function ( e, context, key ) {
+ var selected,
+ wasVisible = context.data.$container.is( ':visible' ),
+ preventDefault = false;
+
+ switch ( key ) {
+ // Arrow down
+ case 40:
+ if ( wasVisible ) {
+ $.suggestions.highlight( context, 'next', true );
+ context.data.selectedWithMouse = false;
+ } else {
+ $.suggestions.update( context, false );
+ }
+ preventDefault = true;
+ break;
+ // Arrow up
+ case 38:
+ if ( wasVisible ) {
+ $.suggestions.highlight( context, 'prev', true );
+ context.data.selectedWithMouse = false;
+ }
+ preventDefault = wasVisible;
+ break;
+ // Escape
+ case 27:
+ $.suggestions.hide( context );
+ $.suggestions.restore( context );
+ $.suggestions.cancel( context );
+ context.data.$textbox.trigger( 'change' );
+ preventDefault = wasVisible;
+ break;
+ // Enter
+ case 13:
+ preventDefault = wasVisible;
+ selected = context.data.$container.find( '.suggestions-result-current' );
+ $.suggestions.hide( context );
+ if ( selected.length === 0 || context.data.selectedWithMouse ) {
+ // If nothing is selected or if something was selected with the mouse
+ // cancel any current requests and allow the form to be submitted
+ // (simply don't prevent default behavior).
+ $.suggestions.cancel( context );
+ preventDefault = false;
+ } else if ( selected.is( '.suggestions-special' ) ) {
+ if ( typeof context.config.special.select === 'function' ) {
+ // Allow the callback to decide whether to prevent default or not
+ if ( context.config.special.select.call( selected, context.data.$textbox, 'keyboard' ) === true ) {
+ preventDefault = false;
+ }
+ }
+ } else {
+ if ( typeof context.config.result.select === 'function' ) {
+ // Allow the callback to decide whether to prevent default or not
+ if ( context.config.result.select.call( selected, context.data.$textbox, 'keyboard' ) === true ) {
+ preventDefault = false;
+ }
+ }
+ }
+ break;
+ default:
+ $.suggestions.update( context, true );
+ break;
+ }
+ if ( preventDefault ) {
+ e.preventDefault();
+ e.stopPropagation();
+ }
+ }
+ };
+
+ // See file header for method documentation
+ $.fn.suggestions = function () {
+
+ // Multi-context fields
+ var returnValue,
+ args = arguments;
+
+ $( this ).each( function () {
+ var context, key;
+
+ /* Construction and Loading */
+
+ context = $( this ).data( 'suggestions-context' );
+ if ( context === undefined || context === null ) {
+ context = {
+ config: {
+ fetch: function () {},
+ cancel: function () {},
+ special: {},
+ result: {},
+ update: {},
+ $region: $( this ),
+ suggestions: [],
+ maxRows: 10,
+ delay: 120,
+ cache: false,
+ cacheMaxAge: 60000,
+ submitOnClick: false,
+ maxExpandFactor: 3,
+ expandFrom: 'auto',
+ highlightInput: false
+ }
+ };
+ }
+
+ /* API */
+
+ // Handle various calling styles
+ if ( args.length > 0 ) {
+ if ( typeof args[ 0 ] === 'object' ) {
+ // Apply set of properties
+ for ( key in args[ 0 ] ) {
+ $.suggestions.configure( context, key, args[ 0 ][ key ] );
+ }
+ } else if ( typeof args[ 0 ] === 'string' ) {
+ if ( args.length > 1 ) {
+ // Set property values
+ $.suggestions.configure( context, args[ 0 ], args[ 1 ] );
+ } else if ( returnValue === null || returnValue === undefined ) {
+ // Get property values, but don't give access to internal data - returns only the first
+ returnValue = ( args[ 0 ] in context.config ? undefined : context.config[ args[ 0 ] ] );
+ }
+ }
+ }
+
+ /* Initialization */
+
+ if ( context.data === undefined ) {
+ context.data = {
+ // ID of running timer
+ timerID: null,
+
+ // Text in textbox when suggestions were last fetched
+ prevText: null,
+
+ // Cache of fetched suggestions
+ cache: {},
+
+ // Number of results visible without scrolling
+ visibleResults: 0,
+
+ // Suggestion the last mousedown event occurred on
+ mouseDownOn: $( [] ),
+ $textbox: $( this ),
+ selectedWithMouse: false
+ };
+
+ context.data.$container = $( '<div>' )
+ .css( 'display', 'none' )
+ .addClass( 'suggestions' )
+ .append(
+ $( '<div>' ).addClass( 'suggestions-results' )
+ // Can't use click() because the container div is hidden when the
+ // textbox loses focus. Instead, listen for a mousedown followed
+ // by a mouseup on the same div.
+ .mousedown( function ( e ) {
+ context.data.mouseDownOn = $( e.target ).closest( '.suggestions-results .suggestions-result' );
+ } )
+ .mouseup( function ( e ) {
+ var $result = $( e.target ).closest( '.suggestions-results .suggestions-result' ),
+ $other = context.data.mouseDownOn;
+
+ context.data.mouseDownOn = $( [] );
+ if ( $result.get( 0 ) !== $other.get( 0 ) ) {
+ return;
+ }
+ $.suggestions.highlight( context, $result, true );
+ if ( typeof context.config.result.select === 'function' ) {
+ context.config.result.select.call( $result, context.data.$textbox, 'mouse' );
+ }
+ // Don't interfere with special clicks (e.g. to open in new tab)
+ if ( !( e.which !== 1 || e.altKey || e.ctrlKey || e.shiftKey || e.metaKey ) ) {
+ // This will hide the link we're just clicking on, which causes problems
+ // when done synchronously in at least Firefox 3.6 (T64858).
+ setTimeout( function () {
+ $.suggestions.hide( context );
+ }, 0 );
+ }
+ // Always bring focus to the textbox, as that's probably where the user expects it
+ // if they were just typing.
+ context.data.$textbox.focus();
+ } )
+ )
+ .append(
+ $( '<div>' ).addClass( 'suggestions-special' )
+ // Can't use click() because the container div is hidden when the
+ // textbox loses focus. Instead, listen for a mousedown followed
+ // by a mouseup on the same div.
+ .mousedown( function ( e ) {
+ context.data.mouseDownOn = $( e.target ).closest( '.suggestions-special' );
+ } )
+ .mouseup( function ( e ) {
+ var $special = $( e.target ).closest( '.suggestions-special' ),
+ $other = context.data.mouseDownOn;
+
+ context.data.mouseDownOn = $( [] );
+ if ( $special.get( 0 ) !== $other.get( 0 ) ) {
+ return;
+ }
+ if ( typeof context.config.special.select === 'function' ) {
+ context.config.special.select.call( $special, context.data.$textbox, 'mouse' );
+ }
+ // Don't interfere with special clicks (e.g. to open in new tab)
+ if ( !( e.which !== 1 || e.altKey || e.ctrlKey || e.shiftKey || e.metaKey ) ) {
+ // This will hide the link we're just clicking on, which causes problems
+ // when done synchronously in at least Firefox 3.6 (T64858).
+ setTimeout( function () {
+ $.suggestions.hide( context );
+ }, 0 );
+ }
+ // Always bring focus to the textbox, as that's probably where the user expects it
+ // if they were just typing.
+ context.data.$textbox.focus();
+ } )
+ .mousemove( function ( e ) {
+ context.data.selectedWithMouse = true;
+ $.suggestions.highlight(
+ context, $( e.target ).closest( '.suggestions-special' ), false
+ );
+ } )
+ )
+ .appendTo( $( 'body' ) );
+
+ $( this )
+ // Stop browser autocomplete from interfering
+ .attr( 'autocomplete', 'off' )
+ .keydown( function ( e ) {
+ // Store key pressed to handle later
+ context.data.keypressed = e.which;
+ context.data.keypressedCount = 0;
+ } )
+ .keypress( function ( e ) {
+ context.data.keypressedCount++;
+ $.suggestions.keypress( e, context, context.data.keypressed );
+ } )
+ .keyup( function ( e ) {
+ // The keypress event is fired when a key is pressed down and that key normally
+ // produces a character value. We also want to handle some keys that don't
+ // produce a character value so we also attach to the keydown/keyup events.
+ // List of codes sourced from
+ // https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/keyCode
+ var allowed = [
+ 40, // up arrow
+ 38, // down arrow
+ 27, // escape
+ 13, // enter
+ 46, // delete
+ 8 // backspace
+ ];
+ if ( context.data.keypressedCount === 0 &&
+ e.which === context.data.keypressed &&
+ $.inArray( e.which, allowed ) !== -1
+ ) {
+ $.suggestions.keypress( e, context, context.data.keypressed );
+ }
+ } )
+ .blur( function () {
+ // When losing focus because of a mousedown
+ // on a suggestion, don't hide the suggestions
+ if ( context.data.mouseDownOn.length > 0 ) {
+ return;
+ }
+ $.suggestions.hide( context );
+ $.suggestions.cancel( context );
+ } );
+ }
+
+ // Store the context for next time
+ $( this ).data( 'suggestions-context', context );
+ } );
+ return returnValue !== undefined ? returnValue : $( this );
+ };
+
+ /**
+ * @class jQuery
+ * @mixins jQuery.plugin.suggestions
+ */
+
+}( jQuery, mediaWiki ) );
scripts.mit.edu / autoinstallsdev / mediawiki.git / blobdiff