wp-admin/js/theme.js

   1 /* global _wpThemeSettings, confirm */
   2 window.wp = window.wp || {};
   3
   4 ( function($) {
   5
   6 // Set up our namespace...
   7 var themes, l10n;
   8 themes = wp.themes = wp.themes || {};
   9
  10 // Store the theme data and settings for organized and quick access
  11 // themes.data.settings, themes.data.themes, themes.data.l10n
  12 themes.data = _wpThemeSettings;
  13 l10n = themes.data.l10n;
  14
  15 // Shortcut for isInstall check
  16 themes.isInstall = !! themes.data.settings.isInstall;
  17
  18 // Setup app structure
  19 _.extend( themes, { model: {}, view: {}, routes: {}, router: {}, template: wp.template });
  20
  21 themes.Model = Backbone.Model.extend({
  22         // Adds attributes to the default data coming through the .org themes api
  23         // Map `id` to `slug` for shared code
  24         initialize: function() {
  25                 var description;
  26
  27                 // If theme is already installed, set an attribute.
  28                 if ( _.indexOf( themes.data.installedThemes, this.get( 'slug' ) ) !== -1 ) {
  29                         this.set({ installed: true });
  30                 }
  31
  32                 // Set the attributes
  33                 this.set({
  34                         // slug is for installation, id is for existing.
  35                         id: this.get( 'slug' ) || this.get( 'id' )
  36                 });
  37
  38                 // Map `section.description` to `description`
  39                 // as the API sometimes returns it differently
  40                 if ( this.has( 'sections' ) ) {
  41                         description = this.get( 'sections' ).description;
  42                         this.set({ description: description });
  43                 }
  44         }
  45 });
  46
  47 // Main view controller for themes.php
  48 // Unifies and renders all available views
  49 themes.view.Appearance = wp.Backbone.View.extend({
  50
  51         el: '#wpbody-content .wrap .theme-browser',
  52
  53         window: $( window ),
  54         // Pagination instance
  55         page: 0,
  56
  57         // Sets up a throttler for binding to 'scroll'
  58         initialize: function( options ) {
  59                 // Scroller checks how far the scroll position is
  60                 _.bindAll( this, 'scroller' );
  61
  62                 this.SearchView = options.SearchView ? options.SearchView : themes.view.Search;
  63                 // Bind to the scroll event and throttle
  64                 // the results from this.scroller
  65                 this.window.bind( 'scroll', _.throttle( this.scroller, 300 ) );
  66         },
  67
  68         // Main render control
  69         render: function() {
  70                 // Setup the main theme view
  71                 // with the current theme collection
  72                 this.view = new themes.view.Themes({
  73                         collection: this.collection,
  74                         parent: this
  75                 });
  76
  77                 // Render search form.
  78                 this.search();
  79
  80                 // Render and append
  81                 this.view.render();
  82                 this.$el.empty().append( this.view.el ).addClass('rendered');
  83                 this.$el.append( '<br class="clear"/>' );
  84         },
  85
  86         // Defines search element container
  87         searchContainer: $( '#wpbody h2:first' ),
  88
  89         // Search input and view
  90         // for current theme collection
  91         search: function() {
  92                 var view,
  93                         self = this;
  94
  95                 // Don't render the search if there is only one theme
  96                 if ( themes.data.themes.length === 1 ) {
  97                         return;
  98                 }
  99
 100                 view = new this.SearchView({
 101                         collection: self.collection,
 102                         parent: this
 103                 });
 104
 105                 // Render and append after screen title
 106                 view.render();
 107                 this.searchContainer
 108                         .append( $.parseHTML( '<label class="screen-reader-text" for="wp-filter-search-input">' + l10n.search + '</label>' ) )
 109                         .append( view.el );
 110         },
 111
 112         // Checks when the user gets close to the bottom
 113         // of the mage and triggers a theme:scroll event
 114         scroller: function() {
 115                 var self = this,
 116                         bottom, threshold;
 117
 118                 bottom = this.window.scrollTop() + self.window.height();
 119                 threshold = self.$el.offset().top + self.$el.outerHeight( false ) - self.window.height();
 120                 threshold = Math.round( threshold * 0.9 );
 121
 122                 if ( bottom > threshold ) {
 123                         this.trigger( 'theme:scroll' );
 124                 }
 125         }
 126 });
 127
 128 // Set up the Collection for our theme data
 129 // @has 'id' 'name' 'screenshot' 'author' 'authorURI' 'version' 'active' ...
 130 themes.Collection = Backbone.Collection.extend({
 131
 132         model: themes.Model,
 133
 134         // Search terms
 135         terms: '',
 136
 137         // Controls searching on the current theme collection
 138         // and triggers an update event
 139         doSearch: function( value ) {
 140
 141                 // Don't do anything if we've already done this search
 142                 // Useful because the Search handler fires multiple times per keystroke
 143                 if ( this.terms === value ) {
 144                         return;
 145                 }
 146
 147                 // Updates terms with the value passed
 148                 this.terms = value;
 149
 150                 // If we have terms, run a search...
 151                 if ( this.terms.length > 0 ) {
 152                         this.search( this.terms );
 153                 }
 154
 155                 // If search is blank, show all themes
 156                 // Useful for resetting the views when you clean the input
 157                 if ( this.terms === '' ) {
 158                         this.reset( themes.data.themes );
 159                 }
 160
 161                 // Trigger an 'update' event
 162                 this.trigger( 'update' );
 163         },
 164
 165         // Performs a search within the collection
 166         // @uses RegExp
 167         search: function( term ) {
 168                 var match, results, haystack;
 169
 170                 // Start with a full collection
 171                 this.reset( themes.data.themes, { silent: true } );
 172
 173                 // Escape the term string for RegExp meta characters
 174                 term = term.replace( /[-\/\\^$*+?.()|[\]{}]/g, '\\$&' );
 175
 176                 // Consider spaces as word delimiters and match the whole string
 177                 // so matching terms can be combined
 178                 term = term.replace( / /g, ')(?=.*' );
 179                 match = new RegExp( '^(?=.*' + term + ').+', 'i' );
 180
 181                 // Find results
 182                 // _.filter and .test
 183                 results = this.filter( function( data ) {
 184                         haystack = _.union( data.get( 'name' ), data.get( 'id' ), data.get( 'description' ), data.get( 'author' ), data.get( 'tags' ) );
 185
 186                         if ( match.test( data.get( 'author' ) ) && term.length > 2 ) {
 187                                 data.set( 'displayAuthor', true );
 188                         }
 189
 190                         return match.test( haystack );
 191                 });
 192
 193                 if ( results.length === 0 ) {
 194                         this.trigger( 'query:empty' );
 195                 } else {
 196                         $( 'body' ).removeClass( 'no-results' );
 197                 }
 198
 199                 this.reset( results );
 200         },
 201
 202         // Paginates the collection with a helper method
 203         // that slices the collection
 204         paginate: function( instance ) {
 205                 var collection = this;
 206                 instance = instance || 0;
 207
 208                 // Themes per instance are set at 20
 209                 collection = _( collection.rest( 20 * instance ) );
 210                 collection = _( collection.first( 20 ) );
 211
 212                 return collection;
 213         },
 214
 215         count: false,
 216
 217         // Handles requests for more themes
 218         // and caches results
 219         //
 220         // When we are missing a cache object we fire an apiCall()
 221         // which triggers events of `query:success` or `query:fail`
 222         query: function( request ) {
 223                 /**
 224                  * @static
 225                  * @type Array
 226                  */
 227                 var queries = this.queries,
 228                         self = this,
 229                         query, isPaginated, count;
 230
 231                 // Store current query request args
 232                 // for later use with the event `theme:end`
 233                 this.currentQuery.request = request;
 234
 235                 // Search the query cache for matches.
 236                 query = _.find( queries, function( query ) {
 237                         return _.isEqual( query.request, request );
 238                 });
 239
 240                 // If the request matches the stored currentQuery.request
 241                 // it means we have a paginated request.
 242                 isPaginated = _.has( request, 'page' );
 243
 244                 // Reset the internal api page counter for non paginated queries.
 245                 if ( ! isPaginated ) {
 246                         this.currentQuery.page = 1;
 247                 }
 248
 249                 // Otherwise, send a new API call and add it to the cache.
 250                 if ( ! query && ! isPaginated ) {
 251                         query = this.apiCall( request ).done( function( data ) {
 252
 253                                 // Update the collection with the queried data.
 254                                 if ( data.themes ) {
 255                                         self.reset( data.themes );
 256                                         count = data.info.results;
 257                                         // Store the results and the query request
 258                                         queries.push( { themes: data.themes, request: request, total: count } );
 259                                 }
 260
 261                                 // Trigger a collection refresh event
 262                                 // and a `query:success` event with a `count` argument.
 263                                 self.trigger( 'update' );
 264                                 self.trigger( 'query:success', count );
 265
 266                                 if ( data.themes && data.themes.length === 0 ) {
 267                                         self.trigger( 'query:empty' );
 268                                 }
 269
 270                         }).fail( function() {
 271                                 self.trigger( 'query:fail' );
 272                         });
 273                 } else {
 274                         // If it's a paginated request we need to fetch more themes...
 275                         if ( isPaginated ) {
 276                                 return this.apiCall( request, isPaginated ).done( function( data ) {
 277                                         // Add the new themes to the current collection
 278                                         // @todo update counter
 279                                         self.add( data.themes );
 280                                         self.trigger( 'query:success' );
 281
 282                                         // We are done loading themes for now.
 283                                         self.loadingThemes = false;
 284
 285                                 }).fail( function() {
 286                                         self.trigger( 'query:fail' );
 287                                 });
 288                         }
 289
 290                         if ( query.themes.length === 0 ) {
 291                                 self.trigger( 'query:empty' );
 292                         } else {
 293                                 $( 'body' ).removeClass( 'no-results' );
 294                         }
 295
 296                         // Only trigger an update event since we already have the themes
 297                         // on our cached object
 298                         if ( _.isNumber( query.total ) ) {
 299                                 this.count = query.total;
 300                         }
 301
 302                         this.reset( query.themes );
 303                         if ( ! query.total ) {
 304                                 this.count = this.length;
 305                         }
 306
 307                         this.trigger( 'update' );
 308                         this.trigger( 'query:success', this.count );
 309                 }
 310         },
 311
 312         // Local cache array for API queries
 313         queries: [],
 314
 315         // Keep track of current query so we can handle pagination
 316         currentQuery: {
 317                 page: 1,
 318                 request: {}
 319         },
 320
 321         // Send request to api.wordpress.org/themes
 322         apiCall: function( request, paginated ) {
 323                 return wp.ajax.send( 'query-themes', {
 324                         data: {
 325                         // Request data
 326                                 request: _.extend({
 327                                         per_page: 100,
 328                                         fields: {
 329                                                 description: true,
 330                                                 tested: true,
 331                                                 requires: true,
 332                                                 rating: true,
 333                                                 downloaded: true,
 334                                                 downloadLink: true,
 335                                                 last_updated: true,
 336                                                 homepage: true,
 337                                                 num_ratings: true
 338                                         }
 339                                 }, request)
 340                         },
 341
 342                         beforeSend: function() {
 343                                 if ( ! paginated ) {
 344                                         // Spin it
 345                                         $( 'body' ).addClass( 'loading-content' ).removeClass( 'no-results' );
 346                                 }
 347                         }
 348                 });
 349         },
 350
 351         // Static status controller for when we are loading themes.
 352         loadingThemes: false
 353 });
 354
 355 // This is the view that controls each theme item
 356 // that will be displayed on the screen
 357 themes.view.Theme = wp.Backbone.View.extend({
 358
 359         // Wrap theme data on a div.theme element
 360         className: 'theme',
 361
 362         // Reflects which theme view we have
 363         // 'grid' (default) or 'detail'
 364         state: 'grid',
 365
 366         // The HTML template for each element to be rendered
 367         html: themes.template( 'theme' ),
 368
 369         events: {
 370                 'click': themes.isInstall ? 'preview': 'expand',
 371                 'keydown': themes.isInstall ? 'preview': 'expand',
 372                 'touchend': themes.isInstall ? 'preview': 'expand',
 373                 'keyup': 'addFocus',
 374                 'touchmove': 'preventExpand'
 375         },
 376
 377         touchDrag: false,
 378
 379         render: function() {
 380                 var data = this.model.toJSON();
 381                 // Render themes using the html template
 382                 this.$el.html( this.html( data ) ).attr({
 383                         tabindex: 0,
 384                         'aria-describedby' : data.id + '-action ' + data.id + '-name'
 385                 });
 386
 387                 // Renders active theme styles
 388                 this.activeTheme();
 389
 390                 if ( this.model.get( 'displayAuthor' ) ) {
 391                         this.$el.addClass( 'display-author' );
 392                 }
 393
 394                 if ( this.model.get( 'installed' ) ) {
 395                         this.$el.addClass( 'is-installed' );
 396                 }
 397         },
 398
 399         // Adds a class to the currently active theme
 400         // and to the overlay in detailed view mode
 401         activeTheme: function() {
 402                 if ( this.model.get( 'active' ) ) {
 403                         this.$el.addClass( 'active' );
 404                 }
 405         },
 406
 407         // Add class of focus to the theme we are focused on.
 408         addFocus: function() {
 409                 var $themeToFocus = ( $( ':focus' ).hasClass( 'theme' ) ) ? $( ':focus' ) : $(':focus').parents('.theme');
 410
 411                 $('.theme.focus').removeClass('focus');
 412                 $themeToFocus.addClass('focus');
 413         },
 414
 415         // Single theme overlay screen
 416         // It's shown when clicking a theme
 417         expand: function( event ) {
 418                 var self = this;
 419
 420                 event = event || window.event;
 421
 422                 // 'enter' and 'space' keys expand the details view when a theme is :focused
 423                 if ( event.type === 'keydown' && ( event.which !== 13 && event.which !== 32 ) ) {
 424                         return;
 425                 }
 426
 427                 // Bail if the user scrolled on a touch device
 428                 if ( this.touchDrag === true ) {
 429                         return this.touchDrag = false;
 430                 }
 431
 432                 // Prevent the modal from showing when the user clicks
 433                 // one of the direct action buttons
 434                 if ( $( event.target ).is( '.theme-actions a' ) ) {
 435                         return;
 436                 }
 437
 438                 // Set focused theme to current element
 439                 themes.focusedTheme = this.$el;
 440
 441                 this.trigger( 'theme:expand', self.model.cid );
 442         },
 443
 444         preventExpand: function() {
 445                 this.touchDrag = true;
 446         },
 447
 448         preview: function( event ) {
 449                 var self = this,
 450                         current, preview;
 451
 452                 // Bail if the user scrolled on a touch device
 453                 if ( this.touchDrag === true ) {
 454                         return this.touchDrag = false;
 455                 }
 456
 457                 // Allow direct link path to installing a theme.
 458                 if ( $( event.target ).hasClass( 'button-primary' ) ) {
 459                         return;
 460                 }
 461
 462                 // 'enter' and 'space' keys expand the details view when a theme is :focused
 463                 if ( event.type === 'keydown' && ( event.which !== 13 && event.which !== 32 ) ) {
 464                         return;
 465                 }
 466
 467                 // pressing enter while focused on the buttons shouldn't open the preview
 468                 if ( event.type === 'keydown' && event.which !== 13 && $( ':focus' ).hasClass( 'button' ) ) {
 469                         return;
 470                 }
 471
 472                 event.preventDefault();
 473
 474                 event = event || window.event;
 475
 476                 // Set focus to current theme.
 477                 themes.focusedTheme = this.$el;
 478
 479                 // Construct a new Preview view.
 480                 preview = new themes.view.Preview({
 481                         model: this.model
 482                 });
 483
 484                 // Render the view and append it.
 485                 preview.render();
 486                 this.setNavButtonsState();
 487
 488                 // Hide previous/next navigation if there is only one theme
 489                 if ( this.model.collection.length === 1 ) {
 490                         preview.$el.addClass( 'no-navigation' );
 491                 } else {
 492                         preview.$el.removeClass( 'no-navigation' );
 493                 }
 494
 495                 // Append preview
 496                 $( 'div.wrap' ).append( preview.el );
 497
 498                 // Listen to our preview object
 499                 // for `theme:next` and `theme:previous` events.
 500                 this.listenTo( preview, 'theme:next', function() {
 501
 502                         // Keep local track of current theme model.
 503                         current = self.model;
 504
 505                         // If we have ventured away from current model update the current model position.
 506                         if ( ! _.isUndefined( self.current ) ) {
 507                                 current = self.current;
 508                         }
 509
 510                         // Get next theme model.
 511                         self.current = self.model.collection.at( self.model.collection.indexOf( current ) + 1 );
 512
 513                         // If we have no more themes, bail.
 514                         if ( _.isUndefined( self.current ) ) {
 515                                 self.options.parent.parent.trigger( 'theme:end' );
 516                                 return self.current = current;
 517                         }
 518
 519                         preview.model = self.current;
 520
 521                         // Render and append.
 522                         preview.render();
 523                         this.setNavButtonsState();
 524                         $( '.next-theme' ).focus();
 525                 })
 526                 .listenTo( preview, 'theme:previous', function() {
 527
 528                         // Keep track of current theme model.
 529                         current = self.model;
 530
 531                         // Bail early if we are at the beginning of the collection
 532                         if ( self.model.collection.indexOf( self.current ) === 0 ) {
 533                                 return;
 534                         }
 535
 536                         // If we have ventured away from current model update the current model position.
 537                         if ( ! _.isUndefined( self.current ) ) {
 538                                 current = self.current;
 539                         }
 540
 541                         // Get previous theme model.
 542                         self.current = self.model.collection.at( self.model.collection.indexOf( current ) - 1 );
 543
 544                         // If we have no more themes, bail.
 545                         if ( _.isUndefined( self.current ) ) {
 546                                 return;
 547                         }
 548
 549                         preview.model = self.current;
 550
 551                         // Render and append.
 552                         preview.render();
 553                         this.setNavButtonsState();
 554                         $( '.previous-theme' ).focus();
 555                 });
 556
 557                 this.listenTo( preview, 'preview:close', function() {
 558                         self.current = self.model;
 559                 });
 560         },
 561
 562         // Handles .disabled classes for previous/next buttons in theme installer preview
 563         setNavButtonsState: function() {
 564                 var $themeInstaller = $( '.theme-install-overlay' ),
 565                         current = _.isUndefined( this.current ) ? this.model : this.current;
 566
 567                 // Disable previous at the zero position
 568                 if ( 0 === this.model.collection.indexOf( current ) ) {
 569                         $themeInstaller.find( '.previous-theme' ).addClass( 'disabled' );
 570                 }
 571
 572                 // Disable next if the next model is undefined
 573                 if ( _.isUndefined( this.model.collection.at( this.model.collection.indexOf( current ) + 1 ) ) ) {
 574                         $themeInstaller.find( '.next-theme' ).addClass( 'disabled' );
 575                 }
 576         }
 577 });
 578
 579 // Theme Details view
 580 // Set ups a modal overlay with the expanded theme data
 581 themes.view.Details = wp.Backbone.View.extend({
 582
 583         // Wrap theme data on a div.theme element
 584         className: 'theme-overlay',
 585
 586         events: {
 587                 'click': 'collapse',
 588                 'click .delete-theme': 'deleteTheme',
 589                 'click .left': 'previousTheme',
 590                 'click .right': 'nextTheme'
 591         },
 592
 593         // The HTML template for the theme overlay
 594         html: themes.template( 'theme-single' ),
 595
 596         render: function() {
 597                 var data = this.model.toJSON();
 598                 this.$el.html( this.html( data ) );
 599                 // Renders active theme styles
 600                 this.activeTheme();
 601                 // Set up navigation events
 602                 this.navigation();
 603                 // Checks screenshot size
 604                 this.screenshotCheck( this.$el );
 605                 // Contain "tabbing" inside the overlay
 606                 this.containFocus( this.$el );
 607         },
 608
 609         // Adds a class to the currently active theme
 610         // and to the overlay in detailed view mode
 611         activeTheme: function() {
 612                 // Check the model has the active property
 613                 this.$el.toggleClass( 'active', this.model.get( 'active' ) );
 614         },
 615
 616         // Keeps :focus within the theme details elements
 617         containFocus: function( $el ) {
 618                 var $target;
 619
 620                 // Move focus to the primary action
 621                 _.delay( function() {
 622                         $( '.theme-wrap a.button-primary:visible' ).focus();
 623                 }, 500 );
 624
 625                 $el.on( 'keydown.wp-themes', function( event ) {
 626
 627                         // Tab key
 628                         if ( event.which === 9 ) {
 629                                 $target = $( event.target );
 630
 631                                 // Keep focus within the overlay by making the last link on theme actions
 632                                 // switch focus to button.left on tabbing and vice versa
 633                                 if ( $target.is( 'button.left' ) && event.shiftKey ) {
 634                                         $el.find( '.theme-actions a:last-child' ).focus();
 635                                         event.preventDefault();
 636                                 } else if ( $target.is( '.theme-actions a:last-child' ) ) {
 637                                         $el.find( 'button.left' ).focus();
 638                                         event.preventDefault();
 639                                 }
 640                         }
 641                 });
 642         },
 643
 644         // Single theme overlay screen
 645         // It's shown when clicking a theme
 646         collapse: function( event ) {
 647                 var self = this,
 648                         scroll;
 649
 650                 event = event || window.event;
 651
 652                 // Prevent collapsing detailed view when there is only one theme available
 653                 if ( themes.data.themes.length === 1 ) {
 654                         return;
 655                 }
 656
 657                 // Detect if the click is inside the overlay
 658                 // and don't close it unless the target was
 659                 // the div.back button
 660                 if ( $( event.target ).is( '.theme-backdrop' ) || $( event.target ).is( '.close' ) || event.keyCode === 27 ) {
 661
 662                         // Add a temporary closing class while overlay fades out
 663                         $( 'body' ).addClass( 'closing-overlay' );
 664
 665                         // With a quick fade out animation
 666                         this.$el.fadeOut( 130, function() {
 667                                 // Clicking outside the modal box closes the overlay
 668                                 $( 'body' ).removeClass( 'closing-overlay' );
 669                                 // Handle event cleanup
 670                                 self.closeOverlay();
 671
 672                                 // Get scroll position to avoid jumping to the top
 673                                 scroll = document.body.scrollTop;
 674
 675                                 // Clean the url structure
 676                                 themes.router.navigate( themes.router.baseUrl( '' ) );
 677
 678                                 // Restore scroll position
 679                                 document.body.scrollTop = scroll;
 680
 681                                 // Return focus to the theme div
 682                                 if ( themes.focusedTheme ) {
 683                                         themes.focusedTheme.focus();
 684                                 }
 685                         });
 686                 }
 687         },
 688
 689         // Handles .disabled classes for next/previous buttons
 690         navigation: function() {
 691
 692                 // Disable Left/Right when at the start or end of the collection
 693                 if ( this.model.cid === this.model.collection.at(0).cid ) {
 694                         this.$el.find( '.left' ).addClass( 'disabled' );
 695                 }
 696                 if ( this.model.cid === this.model.collection.at( this.model.collection.length - 1 ).cid ) {
 697                         this.$el.find( '.right' ).addClass( 'disabled' );
 698                 }
 699         },
 700
 701         // Performs the actions to effectively close
 702         // the theme details overlay
 703         closeOverlay: function() {
 704                 $( 'body' ).removeClass( 'modal-open' );
 705                 this.remove();
 706                 this.unbind();
 707                 this.trigger( 'theme:collapse' );
 708         },
 709
 710         // Confirmation dialog for deleting a theme
 711         deleteTheme: function() {
 712                 return confirm( themes.data.settings.confirmDelete );
 713         },
 714
 715         nextTheme: function() {
 716                 var self = this;
 717                 self.trigger( 'theme:next', self.model.cid );
 718                 return false;
 719         },
 720
 721         previousTheme: function() {
 722                 var self = this;
 723                 self.trigger( 'theme:previous', self.model.cid );
 724                 return false;
 725         },
 726
 727         // Checks if the theme screenshot is the old 300px width version
 728         // and adds a corresponding class if it's true
 729         screenshotCheck: function( el ) {
 730                 var screenshot, image;
 731
 732                 screenshot = el.find( '.screenshot img' );
 733                 image = new Image();
 734                 image.src = screenshot.attr( 'src' );
 735
 736                 // Width check
 737                 if ( image.width && image.width <= 300 ) {
 738                         el.addClass( 'small-screenshot' );
 739                 }
 740         }
 741 });
 742
 743 // Theme Preview view
 744 // Set ups a modal overlay with the expanded theme data
 745 themes.view.Preview = themes.view.Details.extend({
 746
 747         className: 'wp-full-overlay expanded',
 748         el: '.theme-install-overlay',
 749
 750         events: {
 751                 'click .close-full-overlay': 'close',
 752                 'click .collapse-sidebar': 'collapse',
 753                 'click .previous-theme': 'previousTheme',
 754                 'click .next-theme': 'nextTheme',
 755                 'keyup': 'keyEvent'
 756         },
 757
 758         // The HTML template for the theme preview
 759         html: themes.template( 'theme-preview' ),
 760
 761         render: function() {
 762                 var data = this.model.toJSON();
 763
 764                 this.$el.html( this.html( data ) );
 765
 766                 themes.router.navigate( themes.router.baseUrl( themes.router.themePath + this.model.get( 'id' ) ), { replace: true } );
 767
 768                 this.$el.fadeIn( 200, function() {
 769                         $( 'body' ).addClass( 'theme-installer-active full-overlay-active' );
 770                         $( '.close-full-overlay' ).focus();
 771                 });
 772         },
 773
 774         close: function() {
 775                 this.$el.fadeOut( 200, function() {
 776                         $( 'body' ).removeClass( 'theme-installer-active full-overlay-active' );
 777
 778                         // Return focus to the theme div
 779                         if ( themes.focusedTheme ) {
 780                                 themes.focusedTheme.focus();
 781                         }
 782                 });
 783
 784                 themes.router.navigate( themes.router.baseUrl( '' ) );
 785                 this.trigger( 'preview:close' );
 786                 this.undelegateEvents();
 787                 this.unbind();
 788                 return false;
 789         },
 790
 791         collapse: function() {
 792
 793                 this.$el.toggleClass( 'collapsed' ).toggleClass( 'expanded' );
 794                 return false;
 795         },
 796
 797         keyEvent: function( event ) {
 798                 // The escape key closes the preview
 799                 if ( event.keyCode === 27 ) {
 800                         this.undelegateEvents();
 801                         this.close();
 802                 }
 803                 // The right arrow key, next theme
 804                 if ( event.keyCode === 39 ) {
 805                         _.once( this.nextTheme() );
 806                 }
 807
 808                 // The left arrow key, previous theme
 809                 if ( event.keyCode === 37 ) {
 810                         this.previousTheme();
 811                 }
 812         }
 813 });
 814
 815 // Controls the rendering of div.themes,
 816 // a wrapper that will hold all the theme elements
 817 themes.view.Themes = wp.Backbone.View.extend({
 818
 819         className: 'themes',
 820         $overlay: $( 'div.theme-overlay' ),
 821
 822         // Number to keep track of scroll position
 823         // while in theme-overlay mode
 824         index: 0,
 825
 826         // The theme count element
 827         count: $( '.wp-filter .theme-count' ),
 828
 829         initialize: function( options ) {
 830                 var self = this;
 831
 832                 // Set up parent
 833                 this.parent = options.parent;
 834
 835                 // Set current view to [grid]
 836                 this.setView( 'grid' );
 837
 838                 // Move the active theme to the beginning of the collection
 839                 self.currentTheme();
 840
 841                 // When the collection is updated by user input...
 842                 this.listenTo( self.collection, 'update', function() {
 843                         self.parent.page = 0;
 844                         self.currentTheme();
 845                         self.render( this );
 846                 });
 847
 848                 // Update theme count to full result set when available.
 849                 this.listenTo( self.collection, 'query:success', function( count ) {
 850                         if ( _.isNumber( count ) ) {
 851                                 self.count.text( count );
 852                         } else {
 853                                 self.count.text( self.collection.length );
 854                         }
 855                 });
 856
 857                 this.listenTo( self.collection, 'query:empty', function() {
 858                         $( 'body' ).addClass( 'no-results' );
 859                 });
 860
 861                 this.listenTo( this.parent, 'theme:scroll', function() {
 862                         self.renderThemes( self.parent.page );
 863                 });
 864
 865                 this.listenTo( this.parent, 'theme:close', function() {
 866                         if ( self.overlay ) {
 867                                 self.overlay.closeOverlay();
 868                         }
 869                 } );
 870
 871                 // Bind keyboard events.
 872                 $( 'body' ).on( 'keyup', function( event ) {
 873                         if ( ! self.overlay ) {
 874                                 return;
 875                         }
 876
 877                         // Pressing the right arrow key fires a theme:next event
 878                         if ( event.keyCode === 39 ) {
 879                                 self.overlay.nextTheme();
 880                         }
 881
 882                         // Pressing the left arrow key fires a theme:previous event
 883                         if ( event.keyCode === 37 ) {
 884                                 self.overlay.previousTheme();
 885                         }
 886
 887                         // Pressing the escape key fires a theme:collapse event
 888                         if ( event.keyCode === 27 ) {
 889                                 self.overlay.collapse( event );
 890                         }
 891                 });
 892         },
 893
 894         // Manages rendering of theme pages
 895         // and keeping theme count in sync
 896         render: function() {
 897                 // Clear the DOM, please
 898                 this.$el.html( '' );
 899
 900                 // If the user doesn't have switch capabilities
 901                 // or there is only one theme in the collection
 902                 // render the detailed view of the active theme
 903                 if ( themes.data.themes.length === 1 ) {
 904
 905                         // Constructs the view
 906                         this.singleTheme = new themes.view.Details({
 907                                 model: this.collection.models[0]
 908                         });
 909
 910                         // Render and apply a 'single-theme' class to our container
 911                         this.singleTheme.render();
 912                         this.$el.addClass( 'single-theme' );
 913                         this.$el.append( this.singleTheme.el );
 914                 }
 915
 916                 // Generate the themes
 917                 // Using page instance
 918                 // While checking the collection has items
 919                 if ( this.options.collection.size() > 0 ) {
 920                         this.renderThemes( this.parent.page );
 921                 }
 922
 923                 // Display a live theme count for the collection
 924                 this.count.text( this.collection.count ? this.collection.count : this.collection.length );
 925         },
 926
 927         // Iterates through each instance of the collection
 928         // and renders each theme module
 929         renderThemes: function( page ) {
 930                 var self = this;
 931
 932                 self.instance = self.collection.paginate( page );
 933
 934                 // If we have no more themes bail
 935                 if ( self.instance.size() === 0 ) {
 936                         // Fire a no-more-themes event.
 937                         this.parent.trigger( 'theme:end' );
 938                         return;
 939                 }
 940
 941                 // Make sure the add-new stays at the end
 942                 if ( page >= 1 ) {
 943                         $( '.add-new-theme' ).remove();
 944                 }
 945
 946                 // Loop through the themes and setup each theme view
 947                 self.instance.each( function( theme ) {
 948                         self.theme = new themes.view.Theme({
 949                                 model: theme,
 950                                 parent: self
 951                         });
 952
 953                         // Render the views...
 954                         self.theme.render();
 955                         // and append them to div.themes
 956                         self.$el.append( self.theme.el );
 957
 958                         // Binds to theme:expand to show the modal box
 959                         // with the theme details
 960                         self.listenTo( self.theme, 'theme:expand', self.expand, self );
 961                 });
 962
 963                 // 'Add new theme' element shown at the end of the grid
 964                 if ( themes.data.settings.canInstall ) {
 965                         this.$el.append( '<div class="theme add-new-theme"><a href="' + themes.data.settings.installURI + '"><div class="theme-screenshot"><span></span></div><h3 class="theme-name">' + l10n.addNew + '</h3></a></div>' );
 966                 }
 967
 968                 this.parent.page++;
 969         },
 970
 971         // Grabs current theme and puts it at the beginning of the collection
 972         currentTheme: function() {
 973                 var self = this,
 974                         current;
 975
 976                 current = self.collection.findWhere({ active: true });
 977
 978                 // Move the active theme to the beginning of the collection
 979                 if ( current ) {
 980                         self.collection.remove( current );
 981                         self.collection.add( current, { at:0 } );
 982                 }
 983         },
 984
 985         // Sets current view
 986         setView: function( view ) {
 987                 return view;
 988         },
 989
 990         // Renders the overlay with the ThemeDetails view
 991         // Uses the current model data
 992         expand: function( id ) {
 993                 var self = this;
 994
 995                 // Set the current theme model
 996                 this.model = self.collection.get( id );
 997
 998                 // Trigger a route update for the current model
 999                 themes.router.navigate( themes.router.baseUrl( themes.router.themePath + this.model.id ) );
1000
1001                 // Sets this.view to 'detail'
1002                 this.setView( 'detail' );
1003                 $( 'body' ).addClass( 'modal-open' );
1004
1005                 // Set up the theme details view
1006                 this.overlay = new themes.view.Details({
1007                         model: self.model
1008                 });
1009
1010                 this.overlay.render();
1011                 this.$overlay.html( this.overlay.el );
1012
1013                 // Bind to theme:next and theme:previous
1014                 // triggered by the arrow keys
1015                 //
1016                 // Keep track of the current model so we
1017                 // can infer an index position
1018                 this.listenTo( this.overlay, 'theme:next', function() {
1019                         // Renders the next theme on the overlay
1020                         self.next( [ self.model.cid ] );
1021
1022                 })
1023                 .listenTo( this.overlay, 'theme:previous', function() {
1024                         // Renders the previous theme on the overlay
1025                         self.previous( [ self.model.cid ] );
1026                 });
1027         },
1028
1029         // This method renders the next theme on the overlay modal
1030         // based on the current position in the collection
1031         // @params [model cid]
1032         next: function( args ) {
1033                 var self = this,
1034                         model, nextModel;
1035
1036                 // Get the current theme
1037                 model = self.collection.get( args[0] );
1038                 // Find the next model within the collection
1039                 nextModel = self.collection.at( self.collection.indexOf( model ) + 1 );
1040
1041                 // Sanity check which also serves as a boundary test
1042                 if ( nextModel !== undefined ) {
1043
1044                         // We have a new theme...
1045                         // Close the overlay
1046                         this.overlay.closeOverlay();
1047
1048                         // Trigger a route update for the current model
1049                         self.theme.trigger( 'theme:expand', nextModel.cid );
1050
1051                 }
1052         },
1053
1054         // This method renders the previous theme on the overlay modal
1055         // based on the current position in the collection
1056         // @params [model cid]
1057         previous: function( args ) {
1058                 var self = this,
1059                         model, previousModel;
1060
1061                 // Get the current theme
1062                 model = self.collection.get( args[0] );
1063                 // Find the previous model within the collection
1064                 previousModel = self.collection.at( self.collection.indexOf( model ) - 1 );
1065
1066                 if ( previousModel !== undefined ) {
1067
1068                         // We have a new theme...
1069                         // Close the overlay
1070                         this.overlay.closeOverlay();
1071
1072                         // Trigger a route update for the current model
1073                         self.theme.trigger( 'theme:expand', previousModel.cid );
1074
1075                 }
1076         }
1077 });
1078
1079 // Search input view controller.
1080 themes.view.Search = wp.Backbone.View.extend({
1081
1082         tagName: 'input',
1083         className: 'wp-filter-search',
1084         id: 'wp-filter-search-input',
1085         searching: false,
1086
1087         attributes: {
1088                 placeholder: l10n.searchPlaceholder,
1089                 type: 'search'
1090         },
1091
1092         events: {
1093                 'input':  'search',
1094                 'keyup':  'search',
1095                 'change': 'search',
1096                 'search': 'search',
1097                 'blur':   'pushState'
1098         },
1099
1100         initialize: function( options ) {
1101
1102                 this.parent = options.parent;
1103
1104                 this.listenTo( this.parent, 'theme:close', function() {
1105                         this.searching = false;
1106                 } );
1107
1108         },
1109
1110         // Runs a search on the theme collection.
1111         search: function( event ) {
1112                 var options = {};
1113
1114                 // Clear on escape.
1115                 if ( event.type === 'keyup' && event.which === 27 ) {
1116                         event.target.value = '';
1117                 }
1118
1119                 // Lose input focus when pressing enter
1120                 if ( event.which === 13 ) {
1121                         this.$el.trigger( 'blur' );
1122                 }
1123
1124                 this.collection.doSearch( event.target.value );
1125
1126                 // if search is initiated and key is not return
1127                 if ( this.searching && event.which !== 13 ) {
1128                         options.replace = true;
1129                 } else {
1130                         this.searching = true;
1131                 }
1132
1133                 // Update the URL hash
1134                 if ( event.target.value ) {
1135                         themes.router.navigate( themes.router.baseUrl( themes.router.searchPath + event.target.value ), options );
1136                 } else {
1137                         themes.router.navigate( themes.router.baseUrl( '' ) );
1138                 }
1139         },
1140
1141         pushState: function( event ) {
1142                 var url = themes.router.baseUrl( '' );
1143
1144                 if ( event.target.value ) {
1145                         url = themes.router.baseUrl( themes.router.searchPath + event.target.value );
1146                 }
1147
1148                 this.searching = false;
1149                 themes.router.navigate( url );
1150
1151         }
1152 });
1153
1154 // Sets up the routes events for relevant url queries
1155 // Listens to [theme] and [search] params
1156 themes.Router = Backbone.Router.extend({
1157
1158         routes: {
1159                 'themes.php?theme=:slug': 'theme',
1160                 'themes.php?search=:query': 'search',
1161                 'themes.php?s=:query': 'search',
1162                 'themes.php': 'themes',
1163                 '': 'themes'
1164         },
1165
1166         baseUrl: function( url ) {
1167                 return 'themes.php' + url;
1168         },
1169
1170         themePath: '?theme=',
1171         searchPath: '?search=',
1172
1173         search: function( query ) {
1174                 $( '.wp-filter-search' ).val( query );
1175         },
1176
1177         themes: function() {
1178                 $( '.wp-filter-search' ).val( '' );
1179         },
1180
1181         navigate: function() {
1182                 if ( Backbone.history._hasPushState ) {
1183                         Backbone.Router.prototype.navigate.apply( this, arguments );
1184                 }
1185         }
1186
1187 });
1188
1189 // Execute and setup the application
1190 themes.Run = {
1191         init: function() {
1192                 // Initializes the blog's theme library view
1193                 // Create a new collection with data
1194                 this.themes = new themes.Collection( themes.data.themes );
1195
1196                 // Set up the view
1197                 this.view = new themes.view.Appearance({
1198                         collection: this.themes
1199                 });
1200
1201                 this.render();
1202         },
1203
1204         render: function() {
1205
1206                 // Render results
1207                 this.view.render();
1208                 this.routes();
1209
1210                 Backbone.history.start({
1211                         root: themes.data.settings.adminUrl,
1212                         pushState: true,
1213                         hashChange: false
1214                 });
1215         },
1216
1217         routes: function() {
1218                 var self = this;
1219                 // Bind to our global thx object
1220                 // so that the object is available to sub-views
1221                 themes.router = new themes.Router();
1222
1223                 // Handles theme details route event
1224                 themes.router.on( 'route:theme', function( slug ) {
1225                         self.view.view.expand( slug );
1226                 });
1227
1228                 themes.router.on( 'route:themes', function() {
1229                         self.themes.doSearch( '' );
1230                         self.view.trigger( 'theme:close' );
1231                 });
1232
1233                 // Handles search route event
1234                 themes.router.on( 'route:search', function() {
1235                         $( '.wp-filter-search' ).trigger( 'keyup' );
1236                 });
1237
1238                 this.extraRoutes();
1239         },
1240
1241         extraRoutes: function() {
1242                 return false;
1243         }
1244 };
1245
1246 // Extend the main Search view
1247 themes.view.InstallerSearch =  themes.view.Search.extend({
1248
1249         events: {
1250                 'keyup': 'search'
1251         },
1252
1253         // Handles Ajax request for searching through themes in public repo
1254         search: function( event ) {
1255
1256                 // Tabbing or reverse tabbing into the search input shouldn't trigger a search
1257                 if ( event.type === 'keyup' && ( event.which === 9 || event.which === 16 ) ) {
1258                         return;
1259                 }
1260
1261                 this.collection = this.options.parent.view.collection;
1262
1263                 // Clear on escape.
1264                 if ( event.type === 'keyup' && event.which === 27 ) {
1265                         event.target.value = '';
1266                 }
1267
1268                 _.debounce( _.bind( this.doSearch, this ), 300 )( event.target.value );
1269         },
1270
1271         doSearch: _.debounce( function( value ) {
1272                 var request = {};
1273
1274                 request.search = value;
1275
1276                 // Intercept an [author] search.
1277                 //
1278                 // If input value starts with `author:` send a request
1279                 // for `author` instead of a regular `search`
1280                 if ( value.substring( 0, 7 ) === 'author:' ) {
1281                         request.search = '';
1282                         request.author = value.slice( 7 );
1283                 }
1284
1285                 // Intercept a [tag] search.
1286                 //
1287                 // If input value starts with `tag:` send a request
1288                 // for `tag` instead of a regular `search`
1289                 if ( value.substring( 0, 4 ) === 'tag:' ) {
1290                         request.search = '';
1291                         request.tag = [ value.slice( 4 ) ];
1292                 }
1293
1294                 $( '.filter-links li > a.current' ).removeClass( 'current' );
1295                 $( 'body' ).removeClass( 'show-filters filters-applied' );
1296
1297                 // Get the themes by sending Ajax POST request to api.wordpress.org/themes
1298                 // or searching the local cache
1299                 this.collection.query( request );
1300
1301                 // Set route
1302                 themes.router.navigate( themes.router.baseUrl( themes.router.searchPath + value ), { replace: true } );
1303         }, 300 )
1304 });
1305
1306 themes.view.Installer = themes.view.Appearance.extend({
1307
1308         el: '#wpbody-content .wrap',
1309
1310         // Register events for sorting and filters in theme-navigation
1311         events: {
1312                 'click .filter-links li > a': 'onSort',
1313                 'click .theme-filter': 'onFilter',
1314                 'click .drawer-toggle': 'moreFilters',
1315                 'click .filter-drawer .apply-filters': 'applyFilters',
1316                 'click .filter-group [type="checkbox"]': 'addFilter',
1317                 'click .filter-drawer .clear-filters': 'clearFilters',
1318                 'click .filtered-by': 'backToFilters'
1319         },
1320
1321         // Initial render method
1322         render: function() {
1323                 var self = this;
1324
1325                 this.search();
1326                 this.uploader();
1327
1328                 this.collection = new themes.Collection();
1329
1330                 // Bump `collection.currentQuery.page` and request more themes if we hit the end of the page.
1331                 this.listenTo( this, 'theme:end', function() {
1332
1333                         // Make sure we are not already loading
1334                         if ( self.collection.loadingThemes ) {
1335                                 return;
1336                         }
1337
1338                         // Set loadingThemes to true and bump page instance of currentQuery.
1339                         self.collection.loadingThemes = true;
1340                         self.collection.currentQuery.page++;
1341
1342                         // Use currentQuery.page to build the themes request.
1343                         _.extend( self.collection.currentQuery.request, { page: self.collection.currentQuery.page } );
1344                         self.collection.query( self.collection.currentQuery.request );
1345                 });
1346
1347                 this.listenTo( this.collection, 'query:success', function() {
1348                         $( 'body' ).removeClass( 'loading-content' );
1349                         $( '.theme-browser' ).find( 'div.error' ).remove();
1350                 });
1351
1352                 this.listenTo( this.collection, 'query:fail', function() {
1353                         $( 'body' ).removeClass( 'loading-content' );
1354                         $( '.theme-browser' ).find( 'div.error' ).remove();
1355                         $( '.theme-browser' ).find( 'div.themes' ).before( '<div class="error"><p>' + l10n.error + '</p></div>' );
1356                 });
1357
1358                 if ( this.view ) {
1359                         this.view.remove();
1360                 }
1361
1362                 // Set ups the view and passes the section argument
1363                 this.view = new themes.view.Themes({
1364                         collection: this.collection,
1365                         parent: this
1366                 });
1367
1368                 // Reset pagination every time the install view handler is run
1369                 this.page = 0;
1370
1371                 // Render and append
1372                 this.$el.find( '.themes' ).remove();
1373                 this.view.render();
1374                 this.$el.find( '.theme-browser' ).append( this.view.el ).addClass( 'rendered' );
1375         },
1376
1377         // Handles all the rendering of the public theme directory
1378         browse: function( section ) {
1379                 // Create a new collection with the proper theme data
1380                 // for each section
1381                 this.collection.query( { browse: section } );
1382         },
1383
1384         // Sorting navigation
1385         onSort: function( event ) {
1386                 var $el = $( event.target ),
1387                         sort = $el.data( 'sort' );
1388
1389                 event.preventDefault();
1390
1391                 $( 'body' ).removeClass( 'filters-applied show-filters' );
1392
1393                 // Bail if this is already active
1394                 if ( $el.hasClass( this.activeClass ) ) {
1395                         return;
1396                 }
1397
1398                 this.sort( sort );
1399
1400                 // Trigger a router.naviagte update
1401                 themes.router.navigate( themes.router.baseUrl( themes.router.browsePath + sort ) );
1402         },
1403
1404         sort: function( sort ) {
1405                 this.clearSearch();
1406
1407                 $( '.filter-links li > a, .theme-filter' ).removeClass( this.activeClass );
1408                 $( '[data-sort="' + sort + '"]' ).addClass( this.activeClass );
1409
1410                 this.browse( sort );
1411         },
1412
1413         // Filters and Tags
1414         onFilter: function( event ) {
1415                 var request,
1416                         $el = $( event.target ),
1417                         filter = $el.data( 'filter' );
1418
1419                 // Bail if this is already active
1420                 if ( $el.hasClass( this.activeClass ) ) {
1421                         return;
1422                 }
1423
1424                 $( '.filter-links li > a, .theme-section' ).removeClass( this.activeClass );
1425                 $el.addClass( this.activeClass );
1426
1427                 if ( ! filter ) {
1428                         return;
1429                 }
1430
1431                 // Construct the filter request
1432                 // using the default values
1433                 filter = _.union( filter, this.filtersChecked() );
1434                 request = { tag: [ filter ] };
1435
1436                 // Get the themes by sending Ajax POST request to api.wordpress.org/themes
1437                 // or searching the local cache
1438                 this.collection.query( request );
1439         },
1440
1441         // Clicking on a checkbox to add another filter to the request
1442         addFilter: function() {
1443                 this.filtersChecked();
1444         },
1445
1446         // Applying filters triggers a tag request
1447         applyFilters: function( event ) {
1448                 var name,
1449                         tags = this.filtersChecked(),
1450                         request = { tag: tags },
1451                         filteringBy = $( '.filtered-by .tags' );
1452
1453                 if ( event ) {
1454                         event.preventDefault();
1455                 }
1456
1457                 $( 'body' ).addClass( 'filters-applied' );
1458                 $( '.filter-links li > a.current' ).removeClass( 'current' );
1459                 filteringBy.empty();
1460
1461                 _.each( tags, function( tag ) {
1462                         name = $( 'label[for="filter-id-' + tag + '"]' ).text();
1463                         filteringBy.append( '<span class="tag">' + name + '</span>' );
1464                 });
1465
1466                 // Get the themes by sending Ajax POST request to api.wordpress.org/themes
1467                 // or searching the local cache
1468                 this.collection.query( request );
1469         },
1470
1471         // Get the checked filters
1472         // @return {array} of tags or false
1473         filtersChecked: function() {
1474                 var items = $( '.filter-group' ).find( ':checkbox' ),
1475                         tags = [];
1476
1477                 _.each( items.filter( ':checked' ), function( item ) {
1478                         tags.push( $( item ).prop( 'value' ) );
1479                 });
1480
1481                 // When no filters are checked, restore initial state and return
1482                 if ( tags.length === 0 ) {
1483                         $( '.filter-drawer .apply-filters' ).find( 'span' ).text( '' );
1484                         $( '.filter-drawer .clear-filters' ).hide();
1485                         $( 'body' ).removeClass( 'filters-applied' );
1486                         return false;
1487                 }
1488
1489                 $( '.filter-drawer .apply-filters' ).find( 'span' ).text( tags.length );
1490                 $( '.filter-drawer .clear-filters' ).css( 'display', 'inline-block' );
1491
1492                 return tags;
1493         },
1494
1495         activeClass: 'current',
1496
1497         // Overwrite search container class to append search
1498         // in new location
1499         searchContainer: $( '.wp-filter .search-form' ),
1500
1501         uploader: function() {
1502                 $( 'a.upload' ).on( 'click', function( event ) {
1503                         event.preventDefault();
1504                         $( 'body' ).addClass( 'show-upload-theme' );
1505                         themes.router.navigate( themes.router.baseUrl( '?upload' ), { replace: true } );
1506                 });
1507                 $( 'a.browse-themes' ).on( 'click', function( event ) {
1508                         event.preventDefault();
1509                         $( 'body' ).removeClass( 'show-upload-theme' );
1510                         themes.router.navigate( themes.router.baseUrl( '' ), { replace: true } );
1511                 });
1512         },
1513
1514         // Toggle the full filters navigation
1515         moreFilters: function( event ) {
1516                 event.preventDefault();
1517
1518                 if ( $( 'body' ).hasClass( 'filters-applied' ) ) {
1519                         return this.backToFilters();
1520                 }
1521
1522                 // If the filters section is opened and filters are checked
1523                 // run the relevant query collapsing to filtered-by state
1524                 if ( $( 'body' ).hasClass( 'show-filters' ) && this.filtersChecked() ) {
1525                         return this.addFilter();
1526                 }
1527
1528                 this.clearSearch();
1529
1530                 themes.router.navigate( themes.router.baseUrl( '' ) );
1531                 $( 'body' ).toggleClass( 'show-filters' );
1532         },
1533
1534         // Clears all the checked filters
1535         // @uses filtersChecked()
1536         clearFilters: function( event ) {
1537                 var items = $( '.filter-group' ).find( ':checkbox' ),
1538                         self = this;
1539
1540                 event.preventDefault();
1541
1542                 _.each( items.filter( ':checked' ), function( item ) {
1543                         $( item ).prop( 'checked', false );
1544                         return self.filtersChecked();
1545                 });
1546         },
1547
1548         backToFilters: function( event ) {
1549                 if ( event ) {
1550                         event.preventDefault();
1551                 }
1552
1553                 $( 'body' ).removeClass( 'filters-applied' );
1554         },
1555
1556         clearSearch: function() {
1557                 $( '#wp-filter-search-input').val( '' );
1558         }
1559 });
1560
1561 themes.InstallerRouter = Backbone.Router.extend({
1562         routes: {
1563                 'theme-install.php?theme=:slug': 'preview',
1564                 'theme-install.php?browse=:sort': 'sort',
1565                 'theme-install.php?upload': 'upload',
1566                 'theme-install.php?search=:query': 'search',
1567                 'theme-install.php': 'sort'
1568         },
1569
1570         baseUrl: function( url ) {
1571                 return 'theme-install.php' + url;
1572         },
1573
1574         themePath: '?theme=',
1575         browsePath: '?browse=',
1576         searchPath: '?search=',
1577
1578         search: function( query ) {
1579                 $( '.wp-filter-search' ).val( query );
1580         },
1581
1582         navigate: function() {
1583                 if ( Backbone.history._hasPushState ) {
1584                         Backbone.Router.prototype.navigate.apply( this, arguments );
1585                 }
1586         }
1587 });
1588
1589
1590 themes.RunInstaller = {
1591
1592         init: function() {
1593                 // Set up the view
1594                 // Passes the default 'section' as an option
1595                 this.view = new themes.view.Installer({
1596                         section: 'featured',
1597                         SearchView: themes.view.InstallerSearch
1598                 });
1599
1600                 // Render results
1601                 this.render();
1602
1603         },
1604
1605         render: function() {
1606
1607                 // Render results
1608                 this.view.render();
1609                 this.routes();
1610
1611                 Backbone.history.start({
1612                         root: themes.data.settings.adminUrl,
1613                         pushState: true,
1614                         hashChange: false
1615                 });
1616         },
1617
1618         routes: function() {
1619                 var self = this,
1620                         request = {};
1621
1622                 // Bind to our global `wp.themes` object
1623                 // so that the router is available to sub-views
1624                 themes.router = new themes.InstallerRouter();
1625
1626                 // Handles `theme` route event
1627                 // Queries the API for the passed theme slug
1628                 themes.router.on( 'route:preview', function( slug ) {
1629                         request.theme = slug;
1630                         self.view.collection.query( request );
1631                 });
1632
1633                 // Handles sorting / browsing routes
1634                 // Also handles the root URL triggering a sort request
1635                 // for `featured`, the default view
1636                 themes.router.on( 'route:sort', function( sort ) {
1637                         if ( ! sort ) {
1638                                 sort = 'featured';
1639                         }
1640                         self.view.sort( sort );
1641                         self.view.trigger( 'theme:close' );
1642                 });
1643
1644                 // Support the `upload` route by going straight to upload section
1645                 themes.router.on( 'route:upload', function() {
1646                         $( 'a.upload' ).trigger( 'click' );
1647                 });
1648
1649                 // The `search` route event. The router populates the input field.
1650                 themes.router.on( 'route:search', function() {
1651                         $( '.wp-filter-search' ).focus().trigger( 'keyup' );
1652                 });
1653
1654                 this.extraRoutes();
1655         },
1656
1657         extraRoutes: function() {
1658                 return false;
1659         }
1660 };
1661
1662 // Ready...
1663 $( document ).ready(function() {
1664         if ( themes.isInstall ) {
1665                 themes.RunInstaller.init();
1666         } else {
1667                 themes.Run.init();
1668         }
1669
1670         $( '.broken-themes .delete-theme' ).on( 'click', function() {
1671                 return confirm( _wpThemeSettings.settings.confirmDelete );
1672         });
1673 });
1674
1675 })( jQuery );
1676
1677 // Align theme browser thickbox
1678 var tb_position;
1679 jQuery(document).ready( function($) {
1680         tb_position = function() {
1681                 var tbWindow = $('#TB_window'),
1682                         width = $(window).width(),
1683                         H = $(window).height(),
1684                         W = ( 1040 < width ) ? 1040 : width,
1685                         adminbar_height = 0;
1686
1687                 if ( $('#wpadminbar').length ) {
1688                         adminbar_height = parseInt( $('#wpadminbar').css('height'), 10 );
1689                 }
1690
1691                 if ( tbWindow.size() ) {
1692                         tbWindow.width( W - 50 ).height( H - 45 - adminbar_height );
1693                         $('#TB_iframeContent').width( W - 50 ).height( H - 75 - adminbar_height );
1694                         tbWindow.css({'margin-left': '-' + parseInt( ( ( W - 50 ) / 2 ), 10 ) + 'px'});
1695                         if ( typeof document.body.style.maxWidth !== 'undefined' ) {
1696                                 tbWindow.css({'top': 20 + adminbar_height + 'px', 'margin-top': '0'});
1697                         }
1698                 }
1699         };
1700
1701         $(window).resize(function(){ tb_position(); });
1702 });