resources/jquery/jquery.suggestions.js

   1 /**
   2  * This plugin provides a generic way to add suggestions to a text box.
   3  *
   4  * Usage:
   5  *
   6  * Set options:
   7  *              $( '#textbox' ).suggestions( { option1: value1, option2: value2 } );
   8  *              $( '#textbox' ).suggestions( option, value );
   9  * Get option:
  10  *              value = $( '#textbox' ).suggestions( option );
  11  * Initialize:
  12  *              $( '#textbox' ).suggestions();
  13  *
  14  * Options:
  15  *
  16  * fetch(query): Callback that should fetch suggestions and set the suggestions property.
  17  *      Executed in the context of the textbox
  18  *              Type: Function
  19  * cancel: Callback function to call when any pending asynchronous suggestions fetches
  20  *      should be canceled. Executed in the context of the textbox
  21  *              Type: Function
  22  * special: Set of callbacks for rendering and selecting
  23  *              Type: Object of Functions 'render' and 'select'
  24  * result: Set of callbacks for rendering and selecting
  25  *              Type: Object of Functions 'render' and 'select'
  26  * $region: jQuery selection of element to place the suggestions below and match width of
  27  *              Type: jQuery Object, Default: $(this)
  28  * suggestions: Suggestions to display
  29  *              Type: Array of strings
  30  * maxRows: Maximum number of suggestions to display at one time
  31  *              Type: Number, Range: 1 - 100, Default: 7
  32  * delay: Number of ms to wait for the user to stop typing
  33  *              Type: Number, Range: 0 - 1200, Default: 120
  34  * submitOnClick: Whether to submit the form containing the textbox when a suggestion is clicked
  35  *              Type: Boolean, Default: false
  36  * maxExpandFactor: Maximum suggestions box width relative to the textbox width. If set
  37  *      to e.g. 2, the suggestions box will never be grown beyond 2 times the width of the textbox.
  38  *              Type: Number, Range: 1 - infinity, Default: 3
  39  * expandFrom: Which direction to offset the suggestion box from.
  40  *      Values 'start' and 'end' translate to left and right respectively depending on the
  41  *      directionality of the current document, according to $( 'html' ).css( 'direction' ).
  42  *      Type: String, default: 'auto', options: 'left', 'right', 'start', 'end', 'auto'.
  43  * positionFromLeft: Sets expandFrom=left, for backwards compatibility
  44  *              Type: Boolean, Default: true
  45  * highlightInput: Whether to hightlight matched portions of the input or not
  46  *              Type: Boolean, Default: false
  47  */
  48 ( function ( $ ) {
  49
  50 $.suggestions = {
  51         /**
  52          * Cancel any delayed maybeFetch() call and callback the context so
  53          * they can cancel any async fetching if they use AJAX or something.
  54          */
  55         cancel: function ( context ) {
  56                 if ( context.data.timerID !== null ) {
  57                         clearTimeout( context.data.timerID );
  58                 }
  59                 if ( $.isFunction( context.config.cancel ) ) {
  60                         context.config.cancel.call( context.data.$textbox );
  61                 }
  62         },
  63
  64         /**
  65          * Hide the element with suggestions and clean up some state.
  66          */
  67         hide: function ( context ) {
  68                 // Remove any highlights, including on "special" items
  69                 context.data.$container.find( '.suggestions-result-current' ).removeClass( 'suggestions-result-current' );
  70                 // Hide the container
  71                 context.data.$container.hide();
  72         },
  73
  74         /**
  75          * Restore the text the user originally typed in the textbox, before it
  76          * was overwritten by highlight(). This restores the value the currently
  77          * displayed suggestions are based on, rather than the value just before
  78          * highlight() overwrote it; the former is arguably slightly more sensible.
  79          */
  80         restore: function ( context ) {
  81                 context.data.$textbox.val( context.data.prevText );
  82         },
  83
  84         /**
  85          * Ask the user-specified callback for new suggestions. Any previous delayed
  86          * call to this function still pending will be canceled. If the value in the
  87          * textbox is empty or hasn't changed since the last time suggestions were fetched,
  88          * this function does nothing.
  89          * @param {Boolean} delayed Whether or not to delay this by the currently configured amount of time
  90          */
  91         update: function ( context, delayed ) {
  92                 // Only fetch if the value in the textbox changed and is not empty, or if the results were hidden
  93                 // if the textbox is empty then clear the result div, but leave other settings intouched
  94                 function maybeFetch() {
  95                         if ( context.data.$textbox.val().length === 0 ) {
  96                                 $.suggestions.hide( context );
  97                                 context.data.prevText = '';
  98                         } else if (
  99                                 context.data.$textbox.val() !== context.data.prevText ||
 100                                 !context.data.$container.is( ':visible' )
 101                         ) {
 102                                 if ( typeof context.config.fetch === 'function' ) {
 103                                         context.data.prevText = context.data.$textbox.val();
 104                                         context.config.fetch.call( context.data.$textbox, context.data.$textbox.val() );
 105                                 }
 106                         }
 107                 }
 108
 109                 // Cancels any delayed maybeFetch call, and invokes context.config.cancel.
 110                 $.suggestions.cancel( context );
 111
 112                 if ( delayed ) {
 113                         // To avoid many started/aborted requests while typing, we're gonna take a short
 114                         // break before trying to fetch data.
 115                         context.data.timerID = setTimeout( maybeFetch, context.config.delay );
 116                 } else {
 117                         maybeFetch();
 118                 }
 119                 $.suggestions.special( context );
 120         },
 121
 122         special: function ( context ) {
 123                 // Allow custom rendering - but otherwise don't do any rendering
 124                 if ( typeof context.config.special.render === 'function' ) {
 125                         // Wait for the browser to update the value
 126                         setTimeout( function () {
 127                                 // Render special
 128                                 var $special = context.data.$container.find( '.suggestions-special' );
 129                                 context.config.special.render.call( $special, context.data.$textbox.val(), context );
 130                         }, 1 );
 131                 }
 132         },
 133
 134         /**
 135          * Sets the value of a property, and updates the widget accordingly
 136          * @param property String Name of property
 137          * @param value Mixed Value to set property with
 138          */
 139         configure: function ( context, property, value ) {
 140                 var newCSS,
 141                         $result, $results, childrenWidth,
 142                         i, expWidth, maxWidth, text;
 143
 144                 // Validate creation using fallback values
 145                 switch ( property ) {
 146                         case 'fetch':
 147                         case 'cancel':
 148                         case 'special':
 149                         case 'result':
 150                         case '$region':
 151                         case 'expandFrom':
 152                                 context.config[property] = value;
 153                                 break;
 154                         case 'suggestions':
 155                                 context.config[property] = value;
 156                                 // Update suggestions
 157                                 if ( context.data !== undefined ) {
 158                                         if ( context.data.$textbox.val().length === 0 ) {
 159                                                 // Hide the div when no suggestion exist
 160                                                 $.suggestions.hide( context );
 161                                         } else {
 162                                                 // Rebuild the suggestions list
 163                                                 context.data.$container.show();
 164                                                 // Update the size and position of the list
 165                                                 newCSS = {
 166                                                         top: context.config.$region.offset().top + context.config.$region.outerHeight(),
 167                                                         bottom: 'auto',
 168                                                         width: context.config.$region.outerWidth(),
 169                                                         height: 'auto'
 170                                                 };
 171
 172                                                 // Process expandFrom, after this it is set to left or right.
 173                                                 context.config.expandFrom = ( function ( expandFrom ) {
 174                                                         var regionWidth, docWidth, regionCenter, docCenter,
 175                                                                 docDir = $( document.documentElement ).css( 'direction' ),
 176                                                                 $region = context.config.$region;
 177
 178                                                         // Backwards compatible
 179                                                         if ( context.config.positionFromLeft ) {
 180                                                                 expandFrom = 'left';
 181
 182                                                         // Catch invalid values, default to 'auto'
 183                                                         } else if ( $.inArray( expandFrom, ['left', 'right', 'start', 'end', 'auto'] ) === -1 ) {
 184                                                                 expandFrom = 'auto';
 185                                                         }
 186
 187                                                         if ( expandFrom === 'auto' ) {
 188                                                                 if ( $region.data( 'searchsuggest-expand-dir' ) ) {
 189                                                                         // If the markup explicitly contains a direction, use it.
 190                                                                         expandFrom = $region.data( 'searchsuggest-expand-dir' );
 191                                                                 } else {
 192                                                                         regionWidth = $region.outerWidth();
 193                                                                         docWidth = $( document ).width();
 194                                                                         if ( ( regionWidth / docWidth  ) > 0.85 ) {
 195                                                                                 // If the input size takes up more than 85% of the document horizontally
 196                                                                                 // expand the suggestions to the writing direction's native end.
 197                                                                                 expandFrom = 'start';
 198                                                                         } else {
 199                                                                                 // Calculate the center points of the input and document
 200                                                                                 regionCenter = $region.offset().left + regionWidth / 2;
 201                                                                                 docCenter = docWidth / 2;
 202                                                                                 if ( Math.abs( regionCenter - docCenter ) / docCenter < 0.10 ) {
 203                                                                                         // If the input's center is within 10% of the document center
 204                                                                                         // use the writing direction's native end.
 205                                                                                         expandFrom = 'start';
 206                                                                                 } else {
 207                                                                                         // Otherwise expand the input from the closest side of the page,
 208                                                                                         // towards the side of the page with the most free open space
 209                                                                                         expandFrom = regionCenter > docCenter ? 'right' : 'left';
 210                                                                                 }
 211                                                                         }
 212                                                                 }
 213                                                         }
 214
 215                                                         if ( expandFrom === 'start' ) {
 216                                                                 expandFrom = docDir === 'rtl' ? 'right': 'left';
 217
 218                                                         } else if ( expandFrom === 'end' ) {
 219                                                                 expandFrom = docDir === 'rtl' ? 'left': 'right';
 220                                                         }
 221
 222                                                         return expandFrom;
 223
 224                                                 }( context.config.expandFrom ) );
 225
 226                                                 if ( context.config.expandFrom === 'left' ) {
 227                                                         // Expand from left
 228                                                         newCSS.left = context.config.$region.offset().left;
 229                                                         newCSS.right = 'auto';
 230                                                 } else {
 231                                                         // Expand from right
 232                                                         newCSS.left = 'auto';
 233                                                         newCSS.right = $( document ).width() - ( context.config.$region.offset().left + context.config.$region.outerWidth() );
 234                                                 }
 235
 236                                                 context.data.$container.css( newCSS );
 237                                                 $results = context.data.$container.children( '.suggestions-results' );
 238                                                 $results.empty();
 239                                                 expWidth = -1;
 240                                                 for ( i = 0; i < context.config.suggestions.length; i++ ) {
 241                                                         /*jshint loopfunc:true */
 242                                                         text = context.config.suggestions[i];
 243                                                         $result = $( '<div>' )
 244                                                                 .addClass( 'suggestions-result' )
 245                                                                 .attr( 'rel', i )
 246                                                                 .data( 'text', context.config.suggestions[i] )
 247                                                                 .mousemove( function () {
 248                                                                         context.data.selectedWithMouse = true;
 249                                                                         $.suggestions.highlight(
 250                                                                                 context,
 251                                                                                 $(this).closest( '.suggestions-results .suggestions-result' ),
 252                                                                                 false
 253                                                                         );
 254                                                                 } )
 255                                                                 .appendTo( $results );
 256                                                         // Allow custom rendering
 257                                                         if ( typeof context.config.result.render === 'function' ) {
 258                                                                 context.config.result.render.call( $result, context.config.suggestions[i], context );
 259                                                         } else {
 260                                                                 $result.text( text );
 261                                                         }
 262
 263                                                         if ( context.config.highlightInput ) {
 264                                                                 $result.highlightText( context.data.prevText );
 265                                                         }
 266
 267                                                         // Widen results box if needed
 268                                                         // New width is only calculated here, applied later
 269                                                         childrenWidth = $result.children().outerWidth();
 270                                                         if ( childrenWidth > $result.width() && childrenWidth > expWidth ) {
 271                                                                 // factor in any padding, margin, or border space on the parent
 272                                                                 expWidth = childrenWidth + ( context.data.$container.width() - $result.width() );
 273                                                         }
 274                                                 }
 275
 276                                                 // Apply new width for results box, if any
 277                                                 if ( expWidth > context.data.$container.width() ) {
 278                                                         maxWidth = context.config.maxExpandFactor * context.data.$textbox.width();
 279                                                         context.data.$container.width( Math.min( expWidth, maxWidth ) );
 280                                                 }
 281                                         }
 282                                 }
 283                                 break;
 284                         case 'maxRows':
 285                                 context.config[property] = Math.max( 1, Math.min( 100, value ) );
 286                                 break;
 287                         case 'delay':
 288                                 context.config[property] = Math.max( 0, Math.min( 1200, value ) );
 289                                 break;
 290                         case 'maxExpandFactor':
 291                                 context.config[property] = Math.max( 1, value );
 292                                 break;
 293                         case 'submitOnClick':
 294                         case 'positionFromLeft':
 295                         case 'highlightInput':
 296                                 context.config[property] = value ? true : false;
 297                                 break;
 298                 }
 299         },
 300
 301         /**
 302          * Highlight a result in the results table
 303          * @param result <tr> to highlight: jQuery object, or 'prev' or 'next'
 304          * @param updateTextbox If true, put the suggestion in the textbox
 305          */
 306         highlight: function ( context, result, updateTextbox ) {
 307                 var selected = context.data.$container.find( '.suggestions-result-current' );
 308                 if ( !result.get || selected.get( 0 ) !== result.get( 0 ) ) {
 309                         if ( result === 'prev' ) {
 310                                 if( selected.hasClass( 'suggestions-special' ) ) {
 311                                         result = context.data.$container.find( '.suggestions-result:last' );
 312                                 } else {
 313                                         result = selected.prev();
 314                                         if ( !( result.length && result.hasClass( 'suggestions-result' ) ) ) {
 315                                                 // there is something in the DOM between selected element and the wrapper, bypass it
 316                                                 result = selected.parents( '.suggestions-results > *' ).prev().find( '.suggestions-result' ).eq(0);
 317                                         }
 318
 319                                         if ( selected.length === 0 ) {
 320                                                 // we are at the beginning, so lets jump to the last item
 321                                                 if ( context.data.$container.find( '.suggestions-special' ).html() !== '' ) {
 322                                                         result = context.data.$container.find( '.suggestions-special' );
 323                                                 } else {
 324                                                         result = context.data.$container.find( '.suggestions-results .suggestions-result:last' );
 325                                                 }
 326                                         }
 327                                 }
 328                         } else if ( result === 'next' ) {
 329                                 if ( selected.length === 0 ) {
 330                                         // No item selected, go to the first one
 331                                         result = context.data.$container.find( '.suggestions-results .suggestions-result:first' );
 332                                         if ( result.length === 0 && context.data.$container.find( '.suggestions-special' ).html() !== '' ) {
 333                                                 // No suggestion exists, go to the special one directly
 334                                                 result = context.data.$container.find( '.suggestions-special' );
 335                                         }
 336                                 } else {
 337                                         result = selected.next();
 338                                         if ( !( result.length && result.hasClass( 'suggestions-result' ) ) ) {
 339                                                 // there is something in the DOM between selected element and the wrapper, bypass it
 340                                                 result = selected.parents( '.suggestions-results > *' ).next().find( '.suggestions-result' ).eq(0);
 341                                         }
 342
 343                                         if ( selected.hasClass( 'suggestions-special' ) ) {
 344                                                 result = $( [] );
 345                                         } else if (
 346                                                 result.length === 0 &&
 347                                                 context.data.$container.find( '.suggestions-special' ).html() !== ''
 348                                         ) {
 349                                                 // We were at the last item, jump to the specials!
 350                                                 result = context.data.$container.find( '.suggestions-special' );
 351                                         }
 352                                 }
 353                         }
 354                         selected.removeClass( 'suggestions-result-current' );
 355                         result.addClass( 'suggestions-result-current' );
 356                 }
 357                 if ( updateTextbox ) {
 358                         if ( result.length === 0 || result.is( '.suggestions-special' ) ) {
 359                                 $.suggestions.restore( context );
 360                         } else {
 361                                 context.data.$textbox.val( result.data( 'text' ) );
 362                                 // .val() doesn't call any event handlers, so
 363                                 // let the world know what happened
 364                                 context.data.$textbox.change();
 365                         }
 366                         context.data.$textbox.trigger( 'change' );
 367                 }
 368         },
 369
 370         /**
 371          * Respond to keypress event
 372          * @param key Integer Code of key pressed
 373          */
 374         keypress: function ( e, context, key ) {
 375                 var selected,
 376                         wasVisible = context.data.$container.is( ':visible' ),
 377                         preventDefault = false;
 378
 379                 switch ( key ) {
 380                         // Arrow down
 381                         case 40:
 382                                 if ( wasVisible ) {
 383                                         $.suggestions.highlight( context, 'next', true );
 384                                         context.data.selectedWithMouse = false;
 385                                 } else {
 386                                         $.suggestions.update( context, false );
 387                                 }
 388                                 preventDefault = true;
 389                                 break;
 390                         // Arrow up
 391                         case 38:
 392                                 if ( wasVisible ) {
 393                                         $.suggestions.highlight( context, 'prev', true );
 394                                         context.data.selectedWithMouse = false;
 395                                 }
 396                                 preventDefault = wasVisible;
 397                                 break;
 398                         // Escape
 399                         case 27:
 400                                 $.suggestions.hide( context );
 401                                 $.suggestions.restore( context );
 402                                 $.suggestions.cancel( context );
 403                                 context.data.$textbox.trigger( 'change' );
 404                                 preventDefault = wasVisible;
 405                                 break;
 406                         // Enter
 407                         case 13:
 408                                 preventDefault = wasVisible;
 409                                 selected = context.data.$container.find( '.suggestions-result-current' );
 410                                 $.suggestions.hide( context );
 411                                 if ( selected.length === 0 || context.data.selectedWithMouse ) {
 412                                         // If nothing is selected or if something was selected with the mouse
 413                                         // cancel any current requests and allow the form to be submitted
 414                                         // (simply don't prevent default behavior).
 415                                         $.suggestions.cancel( context );
 416                                         preventDefault = false;
 417                                 } else if ( selected.is( '.suggestions-special' ) ) {
 418                                         if ( typeof context.config.special.select === 'function' ) {
 419                                                 // Allow the callback to decide whether to prevent default or not
 420                                                 if ( context.config.special.select.call( selected, context.data.$textbox ) === true ) {
 421                                                         preventDefault = false;
 422                                                 }
 423                                         }
 424                                 } else {
 425                                         $.suggestions.highlight( context, selected, true );
 426
 427                                         if ( typeof context.config.result.select === 'function' ) {
 428                                                 // Allow the callback to decide whether to prevent default or not
 429                                                 if ( context.config.result.select.call( selected, context.data.$textbox ) === true ) {
 430                                                         preventDefault = false;
 431                                                 }
 432                                         }
 433                                 }
 434                                 break;
 435                         default:
 436                                 $.suggestions.update( context, true );
 437                                 break;
 438                 }
 439                 if ( preventDefault ) {
 440                         e.preventDefault();
 441                         e.stopPropagation();
 442                 }
 443         }
 444 };
 445 $.fn.suggestions = function () {
 446
 447         // Multi-context fields
 448         var returnValue,
 449                 args = arguments;
 450
 451         $(this).each( function () {
 452                 var context, key;
 453
 454                 /* Construction / Loading */
 455
 456                 context = $(this).data( 'suggestions-context' );
 457                 if ( context === undefined || context === null ) {
 458                         context = {
 459                                 config: {
 460                                         fetch: function () {},
 461                                         cancel: function () {},
 462                                         special: {},
 463                                         result: {},
 464                                         $region: $(this),
 465                                         suggestions: [],
 466                                         maxRows: 7,
 467                                         delay: 120,
 468                                         submitOnClick: false,
 469                                         maxExpandFactor: 3,
 470                                         expandFrom: 'auto',
 471                                         highlightInput: false
 472                                 }
 473                         };
 474                 }
 475
 476                 /* API */
 477
 478                 // Handle various calling styles
 479                 if ( args.length > 0 ) {
 480                         if ( typeof args[0] === 'object' ) {
 481                                 // Apply set of properties
 482                                 for ( key in args[0] ) {
 483                                         $.suggestions.configure( context, key, args[0][key] );
 484                                 }
 485                         } else if ( typeof args[0] === 'string' ) {
 486                                 if ( args.length > 1 ) {
 487                                         // Set property values
 488                                         $.suggestions.configure( context, args[0], args[1] );
 489                                 } else if ( returnValue === null || returnValue === undefined ) {
 490                                         // Get property values, but don't give access to internal data - returns only the first
 491                                         returnValue = ( args[0] in context.config ? undefined : context.config[args[0]] );
 492                                 }
 493                         }
 494                 }
 495
 496                 /* Initialization */
 497
 498                 if ( context.data === undefined ) {
 499                         context.data = {
 500                                 // ID of running timer
 501                                 timerID: null,
 502
 503                                 // Text in textbox when suggestions were last fetched
 504                                 prevText: null,
 505
 506                                 // Number of results visible without scrolling
 507                                 visibleResults: 0,
 508
 509                                 // Suggestion the last mousedown event occured on
 510                                 mouseDownOn: $( [] ),
 511                                 $textbox: $(this),
 512                                 selectedWithMouse: false
 513                         };
 514
 515                         context.data.$container = $( '<div>' )
 516                                 .css( 'display', 'none' )
 517                                 .addClass( 'suggestions' )
 518                                 .append(
 519                                         $( '<div>' ).addClass( 'suggestions-results' )
 520                                                 // Can't use click() because the container div is hidden when the
 521                                                 // textbox loses focus. Instead, listen for a mousedown followed
 522                                                 // by a mouseup on the same div.
 523                                                 .mousedown( function ( e ) {
 524                                                         context.data.mouseDownOn = $( e.target ).closest( '.suggestions-results .suggestions-result' );
 525                                                 } )
 526                                                 .mouseup( function ( e ) {
 527                                                         var $result = $( e.target ).closest( '.suggestions-results .suggestions-result' ),
 528                                                                 $other = context.data.mouseDownOn;
 529
 530                                                         context.data.mouseDownOn = $( [] );
 531                                                         if ( $result.get( 0 ) !== $other.get( 0 ) ) {
 532                                                                 return;
 533                                                         }
 534                                                         // do not interfere with non-left clicks or if modifier keys are pressed (e.g. ctrl-click)
 535                                                         if ( !( e.which !== 1 || e.altKey || e.ctrlKey || e.shiftKey || e.metaKey ) ) {
 536                                                                 $.suggestions.highlight( context, $result, true );
 537                                                                 $.suggestions.hide( context );
 538                                                                 if ( typeof context.config.result.select === 'function' ) {
 539                                                                         context.config.result.select.call( $result, context.data.$textbox );
 540                                                                 }
 541                                                         }
 542                                                         // but still restore focus to the textbox, so that the suggestions will be hidden properly
 543                                                         context.data.$textbox.focus();
 544                                                 } )
 545                                 )
 546                                 .append(
 547                                         $( '<div>' ).addClass( 'suggestions-special' )
 548                                                 // Can't use click() because the container div is hidden when the
 549                                                 // textbox loses focus. Instead, listen for a mousedown followed
 550                                                 // by a mouseup on the same div.
 551                                                 .mousedown( function ( e ) {
 552                                                         context.data.mouseDownOn = $( e.target ).closest( '.suggestions-special' );
 553                                                 } )
 554                                                 .mouseup( function ( e ) {
 555                                                         var $special = $( e.target ).closest( '.suggestions-special' ),
 556                                                                 $other = context.data.mouseDownOn;
 557
 558                                                         context.data.mouseDownOn = $( [] );
 559                                                         if ( $special.get( 0 ) !== $other.get( 0 ) ) {
 560                                                                 return;
 561                                                         }
 562                                                         // do not interfere with non-left clicks or if modifier keys are pressed (e.g. ctrl-click)
 563                                                         if ( !( e.which !== 1 || e.altKey || e.ctrlKey || e.shiftKey || e.metaKey ) ) {
 564                                                                 $.suggestions.hide( context );
 565                                                                 if ( typeof context.config.special.select === 'function' ) {
 566                                                                         context.config.special.select.call( $special, context.data.$textbox );
 567                                                                 }
 568                                                         }
 569                                                         // but still restore focus to the textbox, so that the suggestions will be hidden properly
 570                                                         context.data.$textbox.focus();
 571                                                 } )
 572                                                 .mousemove( function ( e ) {
 573                                                         context.data.selectedWithMouse = true;
 574                                                         $.suggestions.highlight(
 575                                                                 context, $( e.target ).closest( '.suggestions-special' ), false
 576                                                         );
 577                                                 } )
 578                                 )
 579                                 .appendTo( $( 'body' ) );
 580
 581                         $(this)
 582                                 // Stop browser autocomplete from interfering
 583                                 .attr( 'autocomplete', 'off')
 584                                 .keydown( function ( e ) {
 585                                         // Store key pressed to handle later
 586                                         context.data.keypressed = e.which;
 587                                         context.data.keypressedCount = 0;
 588                                 } )
 589                                 .keypress( function ( e ) {
 590                                         context.data.keypressedCount++;
 591                                         $.suggestions.keypress( e, context, context.data.keypressed );
 592                                 } )
 593                                 .keyup( function ( e ) {
 594                                         // Some browsers won't throw keypress() for arrow keys. If we got a keydown and a keyup without a
 595                                         // keypress in between, solve it
 596                                         if ( context.data.keypressedCount === 0 ) {
 597                                                 $.suggestions.keypress( e, context, context.data.keypressed );
 598                                         }
 599                                 } )
 600                                 .blur( function () {
 601                                         // When losing focus because of a mousedown
 602                                         // on a suggestion, don't hide the suggestions
 603                                         if ( context.data.mouseDownOn.length > 0 ) {
 604                                                 return;
 605                                         }
 606                                         $.suggestions.hide( context );
 607                                         $.suggestions.cancel( context );
 608                                 } );
 609                 }
 610
 611                 // Store the context for next time
 612                 $(this).data( 'suggestions-context', context );
 613         } );
 614         return returnValue !== undefined ? returnValue : $(this);
 615 };
 616
 617 }( jQuery ) );