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         },
  84
  85         // Defines search element container
  86         searchContainer: $( '#wpbody h1:first' ),
  87
  88         // Search input and view
  89         // for current theme collection
  90         search: function() {
  91                 var view,
  92                         self = this;
  93
  94                 // Don't render the search if there is only one theme
  95                 if ( themes.data.themes.length === 1 ) {
  96                         return;
  97                 }
  98
  99                 view = new this.SearchView({
 100                         collection: self.collection,
 101                         parent: this
 102                 });
 103
 104                 // Render and append after screen title
 105                 view.render();
 106                 this.searchContainer
 107                         .append( $.parseHTML( '<label class="screen-reader-text" for="wp-filter-search-input">' + l10n.search + '</label>' ) )
 108                         .append( view.el );
 109         },
 110
 111         // Checks when the user gets close to the bottom
 112         // of the mage and triggers a theme:scroll event
 113         scroller: function() {
 114                 var self = this,
 115                         bottom, threshold;
 116
 117                 bottom = this.window.scrollTop() + self.window.height();
 118                 threshold = self.$el.offset().top + self.$el.outerHeight( false ) - self.window.height();
 119                 threshold = Math.round( threshold * 0.9 );
 120
 121                 if ( bottom > threshold ) {
 122                         this.trigger( 'theme:scroll' );
 123                 }
 124         }
 125 });
 126
 127 // Set up the Collection for our theme data
 128 // @has 'id' 'name' 'screenshot' 'author' 'authorURI' 'version' 'active' ...
 129 themes.Collection = Backbone.Collection.extend({
 130
 131         model: themes.Model,
 132
 133         // Search terms
 134         terms: '',
 135
 136         // Controls searching on the current theme collection
 137         // and triggers an update event
 138         doSearch: function( value ) {
 139
 140                 // Don't do anything if we've already done this search
 141                 // Useful because the Search handler fires multiple times per keystroke
 142                 if ( this.terms === value ) {
 143                         return;
 144                 }
 145
 146                 // Updates terms with the value passed
 147                 this.terms = value;
 148
 149                 // If we have terms, run a search...
 150                 if ( this.terms.length > 0 ) {
 151                         this.search( this.terms );
 152                 }
 153
 154                 // If search is blank, show all themes
 155                 // Useful for resetting the views when you clean the input
 156                 if ( this.terms === '' ) {
 157                         this.reset( themes.data.themes );
 158                         $( 'body' ).removeClass( 'no-results' );
 159                 }
 160
 161                 // Trigger a 'themes:update' event
 162                 this.trigger( 'themes:update' );
 163         },
 164
 165         // Performs a search within the collection
 166         // @uses RegExp
 167         search: function( term ) {
 168                 var match, results, haystack, name, description, author;
 169
 170                 // Start with a full collection
 171                 this.reset( themes.data.themes, { silent: true } );
 172
 173                 // Escape the term string for RegExp meta characters
 174                 term = term.replace( /[-\/\\^$*+?.()|[\]{}]/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                         name        = data.get( 'name' ).replace( /(<([^>]+)>)/ig, '' );
 185                         description = data.get( 'description' ).replace( /(<([^>]+)>)/ig, '' );
 186                         author      = data.get( 'author' ).replace( /(<([^>]+)>)/ig, '' );
 187
 188                         haystack = _.union( [ name, data.get( 'id' ), description, author, data.get( 'tags' ) ] );
 189
 190                         if ( match.test( data.get( 'author' ) ) && term.length > 2 ) {
 191                                 data.set( 'displayAuthor', true );
 192                         }
 193
 194                         return match.test( haystack );
 195                 });
 196
 197                 if ( results.length === 0 ) {
 198                         this.trigger( 'query:empty' );
 199                 } else {
 200                         $( 'body' ).removeClass( 'no-results' );
 201                 }
 202
 203                 this.reset( results );
 204         },
 205
 206         // Paginates the collection with a helper method
 207         // that slices the collection
 208         paginate: function( instance ) {
 209                 var collection = this;
 210                 instance = instance || 0;
 211
 212                 // Themes per instance are set at 20
 213                 collection = _( collection.rest( 20 * instance ) );
 214                 collection = _( collection.first( 20 ) );
 215
 216                 return collection;
 217         },
 218
 219         count: false,
 220
 221         // Handles requests for more themes
 222         // and caches results
 223         //
 224         // When we are missing a cache object we fire an apiCall()
 225         // which triggers events of `query:success` or `query:fail`
 226         query: function( request ) {
 227                 /**
 228                  * @static
 229                  * @type Array
 230                  */
 231                 var queries = this.queries,
 232                         self = this,
 233                         query, isPaginated, count;
 234
 235                 // Store current query request args
 236                 // for later use with the event `theme:end`
 237                 this.currentQuery.request = request;
 238
 239                 // Search the query cache for matches.
 240                 query = _.find( queries, function( query ) {
 241                         return _.isEqual( query.request, request );
 242                 });
 243
 244                 // If the request matches the stored currentQuery.request
 245                 // it means we have a paginated request.
 246                 isPaginated = _.has( request, 'page' );
 247
 248                 // Reset the internal api page counter for non paginated queries.
 249                 if ( ! isPaginated ) {
 250                         this.currentQuery.page = 1;
 251                 }
 252
 253                 // Otherwise, send a new API call and add it to the cache.
 254                 if ( ! query && ! isPaginated ) {
 255                         query = this.apiCall( request ).done( function( data ) {
 256
 257                                 // Update the collection with the queried data.
 258                                 if ( data.themes ) {
 259                                         self.reset( data.themes );
 260                                         count = data.info.results;
 261                                         // Store the results and the query request
 262                                         queries.push( { themes: data.themes, request: request, total: count } );
 263                                 }
 264
 265                                 // Trigger a collection refresh event
 266                                 // and a `query:success` event with a `count` argument.
 267                                 self.trigger( 'themes:update' );
 268                                 self.trigger( 'query:success', count );
 269
 270                                 if ( data.themes && data.themes.length === 0 ) {
 271                                         self.trigger( 'query:empty' );
 272                                 }
 273
 274                         }).fail( function() {
 275                                 self.trigger( 'query:fail' );
 276                         });
 277                 } else {
 278                         // If it's a paginated request we need to fetch more themes...
 279                         if ( isPaginated ) {
 280                                 return this.apiCall( request, isPaginated ).done( function( data ) {
 281                                         // Add the new themes to the current collection
 282                                         // @todo update counter
 283                                         self.add( data.themes );
 284                                         self.trigger( 'query:success' );
 285
 286                                         // We are done loading themes for now.
 287                                         self.loadingThemes = false;
 288
 289                                 }).fail( function() {
 290                                         self.trigger( 'query:fail' );
 291                                 });
 292                         }
 293
 294                         if ( query.themes.length === 0 ) {
 295                                 self.trigger( 'query:empty' );
 296                         } else {
 297                                 $( 'body' ).removeClass( 'no-results' );
 298                         }
 299
 300                         // Only trigger an update event since we already have the themes
 301                         // on our cached object
 302                         if ( _.isNumber( query.total ) ) {
 303                                 this.count = query.total;
 304                         }
 305
 306                         this.reset( query.themes );
 307                         if ( ! query.total ) {
 308                                 this.count = this.length;
 309                         }
 310
 311                         this.trigger( 'themes:update' );
 312                         this.trigger( 'query:success', this.count );
 313                 }
 314         },
 315
 316         // Local cache array for API queries
 317         queries: [],
 318
 319         // Keep track of current query so we can handle pagination
 320         currentQuery: {
 321                 page: 1,
 322                 request: {}
 323         },
 324
 325         // Send request to api.wordpress.org/themes
 326         apiCall: function( request, paginated ) {
 327                 return wp.ajax.send( 'query-themes', {
 328                         data: {
 329                         // Request data
 330                                 request: _.extend({
 331                                         per_page: 100,
 332                                         fields: {
 333                                                 description: true,
 334                                                 tested: true,
 335                                                 requires: true,
 336                                                 rating: true,
 337                                                 downloaded: true,
 338                                                 downloadLink: true,
 339                                                 last_updated: true,
 340                                                 homepage: true,
 341                                                 num_ratings: true
 342                                         }
 343                                 }, request)
 344                         },
 345
 346                         beforeSend: function() {
 347                                 if ( ! paginated ) {
 348                                         // Spin it
 349                                         $( 'body' ).addClass( 'loading-content' ).removeClass( 'no-results' );
 350                                 }
 351                         }
 352                 });
 353         },
 354
 355         // Static status controller for when we are loading themes.
 356         loadingThemes: false
 357 });
 358
 359 // This is the view that controls each theme item
 360 // that will be displayed on the screen
 361 themes.view.Theme = wp.Backbone.View.extend({
 362
 363         // Wrap theme data on a div.theme element
 364         className: 'theme',
 365
 366         // Reflects which theme view we have
 367         // 'grid' (default) or 'detail'
 368         state: 'grid',
 369
 370         // The HTML template for each element to be rendered
 371         html: themes.template( 'theme' ),
 372
 373         events: {
 374                 'click': themes.isInstall ? 'preview': 'expand',
 375                 'keydown': themes.isInstall ? 'preview': 'expand',
 376                 'touchend': themes.isInstall ? 'preview': 'expand',
 377                 'keyup': 'addFocus',
 378                 'touchmove': 'preventExpand',
 379                 'click .theme-install': 'installTheme',
 380                 'click .update-message': 'updateTheme'
 381         },
 382
 383         touchDrag: false,
 384
 385         initialize: function() {
 386                 this.model.on( 'change', this.render, this );
 387         },
 388
 389         render: function() {
 390                 var data = this.model.toJSON();
 391
 392                 // Render themes using the html template
 393                 this.$el.html( this.html( data ) ).attr({
 394                         tabindex: 0,
 395                         'aria-describedby' : data.id + '-action ' + data.id + '-name',
 396                         'data-slug': data.id
 397                 });
 398
 399                 // Renders active theme styles
 400                 this.activeTheme();
 401
 402                 if ( this.model.get( 'displayAuthor' ) ) {
 403                         this.$el.addClass( 'display-author' );
 404                 }
 405         },
 406
 407         // Adds a class to the currently active theme
 408         // and to the overlay in detailed view mode
 409         activeTheme: function() {
 410                 if ( this.model.get( 'active' ) ) {
 411                         this.$el.addClass( 'active' );
 412                 }
 413         },
 414
 415         // Add class of focus to the theme we are focused on.
 416         addFocus: function() {
 417                 var $themeToFocus = ( $( ':focus' ).hasClass( 'theme' ) ) ? $( ':focus' ) : $(':focus').parents('.theme');
 418
 419                 $('.theme.focus').removeClass('focus');
 420                 $themeToFocus.addClass('focus');
 421         },
 422
 423         // Single theme overlay screen
 424         // It's shown when clicking a theme
 425         expand: function( event ) {
 426                 var self = this;
 427
 428                 event = event || window.event;
 429
 430                 // 'enter' and 'space' keys expand the details view when a theme is :focused
 431                 if ( event.type === 'keydown' && ( event.which !== 13 && event.which !== 32 ) ) {
 432                         return;
 433                 }
 434
 435                 // Bail if the user scrolled on a touch device
 436                 if ( this.touchDrag === true ) {
 437                         return this.touchDrag = false;
 438                 }
 439
 440                 // Prevent the modal from showing when the user clicks
 441                 // one of the direct action buttons
 442                 if ( $( event.target ).is( '.theme-actions a' ) ) {
 443                         return;
 444                 }
 445
 446                 // Prevent the modal from showing when the user clicks one of the direct action buttons.
 447                 if ( $( event.target ).is( '.theme-actions a, .update-message, .button-link, .notice-dismiss' ) ) {
 448                         return;
 449                 }
 450
 451                 // Set focused theme to current element
 452                 themes.focusedTheme = this.$el;
 453
 454                 this.trigger( 'theme:expand', self.model.cid );
 455         },
 456
 457         preventExpand: function() {
 458                 this.touchDrag = true;
 459         },
 460
 461         preview: function( event ) {
 462                 var self = this,
 463                         current, preview;
 464
 465                 event = event || window.event;
 466
 467                 // Bail if the user scrolled on a touch device
 468                 if ( this.touchDrag === true ) {
 469                         return this.touchDrag = false;
 470                 }
 471
 472                 // Allow direct link path to installing a theme.
 473                 if ( $( event.target ).not( '.install-theme-preview' ).parents( '.theme-actions' ).length ) {
 474                         return;
 475                 }
 476
 477                 // 'enter' and 'space' keys expand the details view when a theme is :focused
 478                 if ( event.type === 'keydown' && ( event.which !== 13 && event.which !== 32 ) ) {
 479                         return;
 480                 }
 481
 482                 // pressing enter while focused on the buttons shouldn't open the preview
 483                 if ( event.type === 'keydown' && event.which !== 13 && $( ':focus' ).hasClass( 'button' ) ) {
 484                         return;
 485                 }
 486
 487                 event.preventDefault();
 488
 489                 event = event || window.event;
 490
 491                 // Set focus to current theme.
 492                 themes.focusedTheme = this.$el;
 493
 494                 // Construct a new Preview view.
 495                 preview = new themes.view.Preview({
 496                         model: this.model
 497                 });
 498
 499                 // Render the view and append it.
 500                 preview.render();
 501                 this.setNavButtonsState();
 502
 503                 // Hide previous/next navigation if there is only one theme
 504                 if ( this.model.collection.length === 1 ) {
 505                         preview.$el.addClass( 'no-navigation' );
 506                 } else {
 507                         preview.$el.removeClass( 'no-navigation' );
 508                 }
 509
 510                 // Append preview
 511                 $( 'div.wrap' ).append( preview.el );
 512
 513                 // Listen to our preview object
 514                 // for `theme:next` and `theme:previous` events.
 515                 this.listenTo( preview, 'theme:next', function() {
 516
 517                         // Keep local track of current theme model.
 518                         current = self.model;
 519
 520                         // If we have ventured away from current model update the current model position.
 521                         if ( ! _.isUndefined( self.current ) ) {
 522                                 current = self.current;
 523                         }
 524
 525                         // Get next theme model.
 526                         self.current = self.model.collection.at( self.model.collection.indexOf( current ) + 1 );
 527
 528                         // If we have no more themes, bail.
 529                         if ( _.isUndefined( self.current ) ) {
 530                                 self.options.parent.parent.trigger( 'theme:end' );
 531                                 return self.current = current;
 532                         }
 533
 534                         preview.model = self.current;
 535
 536                         // Render and append.
 537                         preview.render();
 538                         this.setNavButtonsState();
 539                         $( '.next-theme' ).focus();
 540                 })
 541                 .listenTo( preview, 'theme:previous', function() {
 542
 543                         // Keep track of current theme model.
 544                         current = self.model;
 545
 546                         // Bail early if we are at the beginning of the collection
 547                         if ( self.model.collection.indexOf( self.current ) === 0 ) {
 548                                 return;
 549                         }
 550
 551                         // If we have ventured away from current model update the current model position.
 552                         if ( ! _.isUndefined( self.current ) ) {
 553                                 current = self.current;
 554                         }
 555
 556                         // Get previous theme model.
 557                         self.current = self.model.collection.at( self.model.collection.indexOf( current ) - 1 );
 558
 559                         // If we have no more themes, bail.
 560                         if ( _.isUndefined( self.current ) ) {
 561                                 return;
 562                         }
 563
 564                         preview.model = self.current;
 565
 566                         // Render and append.
 567                         preview.render();
 568                         this.setNavButtonsState();
 569                         $( '.previous-theme' ).focus();
 570                 });
 571
 572                 this.listenTo( preview, 'preview:close', function() {
 573                         self.current = self.model;
 574                 });
 575         },
 576
 577         // Handles .disabled classes for previous/next buttons in theme installer preview
 578         setNavButtonsState: function() {
 579                 var $themeInstaller = $( '.theme-install-overlay' ),
 580                         current = _.isUndefined( this.current ) ? this.model : this.current;
 581
 582                 // Disable previous at the zero position
 583                 if ( 0 === this.model.collection.indexOf( current ) ) {
 584                         $themeInstaller.find( '.previous-theme' ).addClass( 'disabled' );
 585                 }
 586
 587                 // Disable next if the next model is undefined
 588                 if ( _.isUndefined( this.model.collection.at( this.model.collection.indexOf( current ) + 1 ) ) ) {
 589                         $themeInstaller.find( '.next-theme' ).addClass( 'disabled' );
 590                 }
 591         },
 592
 593         installTheme: function( event ) {
 594                 var _this = this;
 595
 596                 event.preventDefault();
 597
 598                 wp.updates.maybeRequestFilesystemCredentials( event );
 599
 600                 $( document ).on( 'wp-theme-install-success', function( event, response ) {
 601                         if ( _this.model.get( 'id' ) === response.slug ) {
 602                                 _this.model.set( { 'installed': true } );
 603                         }
 604                 } );
 605
 606                 wp.updates.installTheme( {
 607                         slug: $( event.target ).data( 'slug' )
 608                 } );
 609         },
 610
 611         updateTheme: function( event ) {
 612                 var _this = this;
 613
 614                 if ( ! this.model.get( 'hasPackage' ) ) {
 615                         return;
 616                 }
 617
 618                 event.preventDefault();
 619
 620                 wp.updates.maybeRequestFilesystemCredentials( event );
 621
 622                 $( document ).on( 'wp-theme-update-success', function( event, response ) {
 623                         _this.model.off( 'change', _this.render, _this );
 624                         if ( _this.model.get( 'id' ) === response.slug ) {
 625                                 _this.model.set( {
 626                                         hasUpdate: false,
 627                                         version: response.newVersion
 628                                 } );
 629                         }
 630                         _this.model.on( 'change', _this.render, _this );
 631                 } );
 632
 633                 wp.updates.updateTheme( {
 634                         slug: $( event.target ).parents( 'div.theme' ).first().data( 'slug' )
 635                 } );
 636         }
 637 });
 638
 639 // Theme Details view
 640 // Set ups a modal overlay with the expanded theme data
 641 themes.view.Details = wp.Backbone.View.extend({
 642
 643         // Wrap theme data on a div.theme element
 644         className: 'theme-overlay',
 645
 646         events: {
 647                 'click': 'collapse',
 648                 'click .delete-theme': 'deleteTheme',
 649                 'click .left': 'previousTheme',
 650                 'click .right': 'nextTheme',
 651                 'click #update-theme': 'updateTheme'
 652         },
 653
 654         // The HTML template for the theme overlay
 655         html: themes.template( 'theme-single' ),
 656
 657         render: function() {
 658                 var data = this.model.toJSON();
 659                 this.$el.html( this.html( data ) );
 660                 // Renders active theme styles
 661                 this.activeTheme();
 662                 // Set up navigation events
 663                 this.navigation();
 664                 // Checks screenshot size
 665                 this.screenshotCheck( this.$el );
 666                 // Contain "tabbing" inside the overlay
 667                 this.containFocus( this.$el );
 668         },
 669
 670         // Adds a class to the currently active theme
 671         // and to the overlay in detailed view mode
 672         activeTheme: function() {
 673                 // Check the model has the active property
 674                 this.$el.toggleClass( 'active', this.model.get( 'active' ) );
 675         },
 676
 677         // Set initial focus and constrain tabbing within the theme browser modal.
 678         containFocus: function( $el ) {
 679
 680                 // Set initial focus on the primary action control.
 681                 _.delay( function() {
 682                         $( '.theme-wrap a.button-primary:visible' ).focus();
 683                 }, 100 );
 684
 685                 // Constrain tabbing within the modal.
 686                 $el.on( 'keydown.wp-themes', function( event ) {
 687                         var $firstFocusable = $el.find( '.theme-header button:not(.disabled)' ).first(),
 688                                 $lastFocusable = $el.find( '.theme-actions a:visible' ).last();
 689
 690                         // Check for the Tab key.
 691                         if ( 9 === event.which ) {
 692                                 if ( $firstFocusable[0] === event.target && event.shiftKey ) {
 693                                         $lastFocusable.focus();
 694                                         event.preventDefault();
 695                                 } else if ( $lastFocusable[0] === event.target && ! event.shiftKey ) {
 696                                         $firstFocusable.focus();
 697                                         event.preventDefault();
 698                                 }
 699                         }
 700                 });
 701         },
 702
 703         // Single theme overlay screen
 704         // It's shown when clicking a theme
 705         collapse: function( event ) {
 706                 var self = this,
 707                         scroll;
 708
 709                 event = event || window.event;
 710
 711                 // Prevent collapsing detailed view when there is only one theme available
 712                 if ( themes.data.themes.length === 1 ) {
 713                         return;
 714                 }
 715
 716                 // Detect if the click is inside the overlay
 717                 // and don't close it unless the target was
 718                 // the div.back button
 719                 if ( $( event.target ).is( '.theme-backdrop' ) || $( event.target ).is( '.close' ) || event.keyCode === 27 ) {
 720
 721                         // Add a temporary closing class while overlay fades out
 722                         $( 'body' ).addClass( 'closing-overlay' );
 723
 724                         // With a quick fade out animation
 725                         this.$el.fadeOut( 130, function() {
 726                                 // Clicking outside the modal box closes the overlay
 727                                 $( 'body' ).removeClass( 'closing-overlay' );
 728                                 // Handle event cleanup
 729                                 self.closeOverlay();
 730
 731                                 // Get scroll position to avoid jumping to the top
 732                                 scroll = document.body.scrollTop;
 733
 734                                 // Clean the url structure
 735                                 themes.router.navigate( themes.router.baseUrl( '' ) );
 736
 737                                 // Restore scroll position
 738                                 document.body.scrollTop = scroll;
 739
 740                                 // Return focus to the theme div
 741                                 if ( themes.focusedTheme ) {
 742                                         themes.focusedTheme.focus();
 743                                 }
 744                         });
 745                 }
 746         },
 747
 748         // Handles .disabled classes for next/previous buttons
 749         navigation: function() {
 750
 751                 // Disable Left/Right when at the start or end of the collection
 752                 if ( this.model.cid === this.model.collection.at(0).cid ) {
 753                         this.$el.find( '.left' )
 754                                 .addClass( 'disabled' )
 755                                 .prop( 'disabled', true );
 756                 }
 757                 if ( this.model.cid === this.model.collection.at( this.model.collection.length - 1 ).cid ) {
 758                         this.$el.find( '.right' )
 759                                 .addClass( 'disabled' )
 760                                 .prop( 'disabled', true );
 761                 }
 762         },
 763
 764         // Performs the actions to effectively close
 765         // the theme details overlay
 766         closeOverlay: function() {
 767                 $( 'body' ).removeClass( 'modal-open' );
 768                 this.remove();
 769                 this.unbind();
 770                 this.trigger( 'theme:collapse' );
 771         },
 772
 773         updateTheme: function( event ) {
 774                 var _this = this;
 775                 event.preventDefault();
 776
 777                 wp.updates.maybeRequestFilesystemCredentials( event );
 778
 779                 $( document ).on( 'wp-theme-update-success', function( event, response ) {
 780                         if ( _this.model.get( 'id' ) === response.slug ) {
 781                                 _this.model.set( {
 782                                         hasUpdate: false,
 783                                         version: response.newVersion
 784                                 } );
 785                         }
 786                         _this.render();
 787                 } );
 788
 789                 wp.updates.updateTheme( {
 790                         slug: $( event.target ).data( 'slug' )
 791                 } );
 792         },
 793
 794         deleteTheme: function( event ) {
 795                 var _this = this,
 796                     _collection = _this.model.collection,
 797                     _themes = themes;
 798                 event.preventDefault();
 799
 800                 // Confirmation dialog for deleting a theme.
 801                 if ( ! window.confirm( wp.themes.data.settings.confirmDelete ) ) {
 802                         return;
 803                 }
 804
 805                 wp.updates.maybeRequestFilesystemCredentials( event );
 806
 807                 $( document ).one( 'wp-theme-delete-success', function( event, response ) {
 808                         _this.$el.find( '.close' ).trigger( 'click' );
 809                         $( '[data-slug="' + response.slug + '"]' ).css( { backgroundColor:'#faafaa' } ).fadeOut( 350, function() {
 810                                 $( this ).remove();
 811                                 _themes.data.themes = _.without( _themes.data.themes, _.findWhere( _themes.data.themes, { id: response.slug } ) );
 812
 813                                 $( '.wp-filter-search' ).val( '' );
 814                                 _collection.doSearch( '' );
 815                                 _collection.remove( _this.model );
 816                                 _collection.trigger( 'themes:update' );
 817                         } );
 818                 } );
 819
 820                 wp.updates.deleteTheme( {
 821                         slug: this.model.get( 'id' )
 822                 } );
 823         },
 824
 825         nextTheme: function() {
 826                 var self = this;
 827                 self.trigger( 'theme:next', self.model.cid );
 828                 return false;
 829         },
 830
 831         previousTheme: function() {
 832                 var self = this;
 833                 self.trigger( 'theme:previous', self.model.cid );
 834                 return false;
 835         },
 836
 837         // Checks if the theme screenshot is the old 300px width version
 838         // and adds a corresponding class if it's true
 839         screenshotCheck: function( el ) {
 840                 var screenshot, image;
 841
 842                 screenshot = el.find( '.screenshot img' );
 843                 image = new Image();
 844                 image.src = screenshot.attr( 'src' );
 845
 846                 // Width check
 847                 if ( image.width && image.width <= 300 ) {
 848                         el.addClass( 'small-screenshot' );
 849                 }
 850         }
 851 });
 852
 853 // Theme Preview view
 854 // Set ups a modal overlay with the expanded theme data
 855 themes.view.Preview = themes.view.Details.extend({
 856
 857         className: 'wp-full-overlay expanded',
 858         el: '.theme-install-overlay',
 859
 860         events: {
 861                 'click .close-full-overlay': 'close',
 862                 'click .collapse-sidebar': 'collapse',
 863                 'click .devices button': 'previewDevice',
 864                 'click .previous-theme': 'previousTheme',
 865                 'click .next-theme': 'nextTheme',
 866                 'keyup': 'keyEvent',
 867                 'click .theme-install': 'installTheme'
 868         },
 869
 870         // The HTML template for the theme preview
 871         html: themes.template( 'theme-preview' ),
 872
 873         render: function() {
 874                 var self = this,
 875                         currentPreviewDevice,
 876                         data = this.model.toJSON(),
 877                         $body = $( document.body );
 878
 879                 $body.attr( 'aria-busy', 'true' );
 880
 881                 this.$el.removeClass( 'iframe-ready' ).html( this.html( data ) );
 882
 883                 currentPreviewDevice = this.$el.data( 'current-preview-device' );
 884                 if ( currentPreviewDevice ) {
 885                         self.tooglePreviewDeviceButtons( currentPreviewDevice );
 886                 }
 887
 888                 themes.router.navigate( themes.router.baseUrl( themes.router.themePath + this.model.get( 'id' ) ), { replace: true } );
 889
 890                 this.$el.fadeIn( 200, function() {
 891                         $body.addClass( 'theme-installer-active full-overlay-active' );
 892                 });
 893
 894                 this.$el.find( 'iframe' ).one( 'load', function() {
 895                         self.iframeLoaded();
 896                 });
 897         },
 898
 899         iframeLoaded: function() {
 900                 this.$el.addClass( 'iframe-ready' );
 901                 $( document.body ).attr( 'aria-busy', 'false' );
 902         },
 903
 904         close: function() {
 905                 this.$el.fadeOut( 200, function() {
 906                         $( 'body' ).removeClass( 'theme-installer-active full-overlay-active' );
 907
 908                         // Return focus to the theme div
 909                         if ( themes.focusedTheme ) {
 910                                 themes.focusedTheme.focus();
 911                         }
 912                 }).removeClass( 'iframe-ready' );
 913
 914                 themes.router.navigate( themes.router.baseUrl( '' ) );
 915                 this.trigger( 'preview:close' );
 916                 this.undelegateEvents();
 917                 this.unbind();
 918                 return false;
 919         },
 920
 921         collapse: function( event ) {
 922                 var $button = $( event.currentTarget );
 923                 if ( 'true' === $button.attr( 'aria-expanded' ) ) {
 924                         $button.attr({ 'aria-expanded': 'false', 'aria-label': l10n.expandSidebar });
 925                 } else {
 926                         $button.attr({ 'aria-expanded': 'true', 'aria-label': l10n.collapseSidebar });
 927                 }
 928
 929                 this.$el.toggleClass( 'collapsed' ).toggleClass( 'expanded' );
 930                 return false;
 931         },
 932
 933         previewDevice: function( event ) {
 934                 var device = $( event.currentTarget ).data( 'device' );
 935
 936                 this.$el
 937                         .removeClass( 'preview-desktop preview-tablet preview-mobile' )
 938                         .addClass( 'preview-' + device )
 939                         .data( 'current-preview-device', device );
 940
 941                 this.tooglePreviewDeviceButtons( device );
 942         },
 943
 944         tooglePreviewDeviceButtons: function( newDevice ) {
 945                 var $devices = $( '.wp-full-overlay-footer .devices' );
 946
 947                 $devices.find( 'button' )
 948                         .removeClass( 'active' )
 949                         .attr( 'aria-pressed', false );
 950
 951                 $devices.find( 'button.preview-' + newDevice )
 952                         .addClass( 'active' )
 953                         .attr( 'aria-pressed', true );
 954         },
 955
 956         keyEvent: function( event ) {
 957                 // The escape key closes the preview
 958                 if ( event.keyCode === 27 ) {
 959                         this.undelegateEvents();
 960                         this.close();
 961                 }
 962                 // The right arrow key, next theme
 963                 if ( event.keyCode === 39 ) {
 964                         _.once( this.nextTheme() );
 965                 }
 966
 967                 // The left arrow key, previous theme
 968                 if ( event.keyCode === 37 ) {
 969                         this.previousTheme();
 970                 }
 971         },
 972
 973         installTheme: function( event ) {
 974                 var _this   = this,
 975                     $target = $( event.target );
 976                 event.preventDefault();
 977
 978                 if ( $target.hasClass( 'disabled' ) ) {
 979                         return;
 980                 }
 981
 982                 wp.updates.maybeRequestFilesystemCredentials( event );
 983
 984                 $( document ).on( 'wp-theme-install-success', function() {
 985                         _this.model.set( { 'installed': true } );
 986                 } );
 987
 988                 wp.updates.installTheme( {
 989                         slug: $target.data( 'slug' )
 990                 } );
 991         }
 992 });
 993
 994 // Controls the rendering of div.themes,
 995 // a wrapper that will hold all the theme elements
 996 themes.view.Themes = wp.Backbone.View.extend({
 997
 998         className: 'themes wp-clearfix',
 999         $overlay: $( 'div.theme-overlay' ),
1000
1001         // Number to keep track of scroll position
1002         // while in theme-overlay mode
1003         index: 0,
1004
1005         // The theme count element
1006         count: $( '.wrap .theme-count' ),
1007
1008         // The live themes count
1009         liveThemeCount: 0,
1010
1011         initialize: function( options ) {
1012                 var self = this;
1013
1014                 // Set up parent
1015                 this.parent = options.parent;
1016
1017                 // Set current view to [grid]
1018                 this.setView( 'grid' );
1019
1020                 // Move the active theme to the beginning of the collection
1021                 self.currentTheme();
1022
1023                 // When the collection is updated by user input...
1024                 this.listenTo( self.collection, 'themes:update', function() {
1025                         self.parent.page = 0;
1026                         self.currentTheme();
1027                         self.render( this );
1028                 } );
1029
1030                 // Update theme count to full result set when available.
1031                 this.listenTo( self.collection, 'query:success', function( count ) {
1032                         if ( _.isNumber( count ) ) {
1033                                 self.count.text( count );
1034                                 self.announceSearchResults( count );
1035                         } else {
1036                                 self.count.text( self.collection.length );
1037                                 self.announceSearchResults( self.collection.length );
1038                         }
1039                 });
1040
1041                 this.listenTo( self.collection, 'query:empty', function() {
1042                         $( 'body' ).addClass( 'no-results' );
1043                 });
1044
1045                 this.listenTo( this.parent, 'theme:scroll', function() {
1046                         self.renderThemes( self.parent.page );
1047                 });
1048
1049                 this.listenTo( this.parent, 'theme:close', function() {
1050                         if ( self.overlay ) {
1051                                 self.overlay.closeOverlay();
1052                         }
1053                 } );
1054
1055                 // Bind keyboard events.
1056                 $( 'body' ).on( 'keyup', function( event ) {
1057                         if ( ! self.overlay ) {
1058                                 return;
1059                         }
1060
1061                         // Bail if the filesystem credentials dialog is shown.
1062                         if ( $( '#request-filesystem-credentials-dialog' ).is( ':visible' ) ) {
1063                                 return;
1064                         }
1065
1066                         // Pressing the right arrow key fires a theme:next event
1067                         if ( event.keyCode === 39 ) {
1068                                 self.overlay.nextTheme();
1069                         }
1070
1071                         // Pressing the left arrow key fires a theme:previous event
1072                         if ( event.keyCode === 37 ) {
1073                                 self.overlay.previousTheme();
1074                         }
1075
1076                         // Pressing the escape key fires a theme:collapse event
1077                         if ( event.keyCode === 27 ) {
1078                                 self.overlay.collapse( event );
1079                         }
1080                 });
1081         },
1082
1083         // Manages rendering of theme pages
1084         // and keeping theme count in sync
1085         render: function() {
1086                 // Clear the DOM, please
1087                 this.$el.empty();
1088
1089                 // If the user doesn't have switch capabilities
1090                 // or there is only one theme in the collection
1091                 // render the detailed view of the active theme
1092                 if ( themes.data.themes.length === 1 ) {
1093
1094                         // Constructs the view
1095                         this.singleTheme = new themes.view.Details({
1096                                 model: this.collection.models[0]
1097                         });
1098
1099                         // Render and apply a 'single-theme' class to our container
1100                         this.singleTheme.render();
1101                         this.$el.addClass( 'single-theme' );
1102                         this.$el.append( this.singleTheme.el );
1103                 }
1104
1105                 // Generate the themes
1106                 // Using page instance
1107                 // While checking the collection has items
1108                 if ( this.options.collection.size() > 0 ) {
1109                         this.renderThemes( this.parent.page );
1110                 }
1111
1112                 // Display a live theme count for the collection
1113                 this.liveThemeCount = this.collection.count ? this.collection.count : this.collection.length;
1114                 this.count.text( this.liveThemeCount );
1115
1116                 /*
1117                  * In the theme installer the themes count is already announced
1118                  * because `announceSearchResults` is called on `query:success`.
1119                  */
1120                 if ( ! themes.isInstall ) {
1121                         this.announceSearchResults( this.liveThemeCount );
1122                 }
1123         },
1124
1125         // Iterates through each instance of the collection
1126         // and renders each theme module
1127         renderThemes: function( page ) {
1128                 var self = this;
1129
1130                 self.instance = self.collection.paginate( page );
1131
1132                 // If we have no more themes bail
1133                 if ( self.instance.size() === 0 ) {
1134                         // Fire a no-more-themes event.
1135                         this.parent.trigger( 'theme:end' );
1136                         return;
1137                 }
1138
1139                 // Make sure the add-new stays at the end
1140                 if ( ! themes.isInstall && page >= 1 ) {
1141                         $( '.add-new-theme' ).remove();
1142                 }
1143
1144                 // Loop through the themes and setup each theme view
1145                 self.instance.each( function( theme ) {
1146                         self.theme = new themes.view.Theme({
1147                                 model: theme,
1148                                 parent: self
1149                         });
1150
1151                         // Render the views...
1152                         self.theme.render();
1153                         // and append them to div.themes
1154                         self.$el.append( self.theme.el );
1155
1156                         // Binds to theme:expand to show the modal box
1157                         // with the theme details
1158                         self.listenTo( self.theme, 'theme:expand', self.expand, self );
1159                 });
1160
1161                 // 'Add new theme' element shown at the end of the grid
1162                 if ( ! themes.isInstall && themes.data.settings.canInstall ) {
1163                         this.$el.append( '<div class="theme add-new-theme"><a href="' + themes.data.settings.installURI + '"><div class="theme-screenshot"><span></span></div><h2 class="theme-name">' + l10n.addNew + '</h2></a></div>' );
1164                 }
1165
1166                 this.parent.page++;
1167         },
1168
1169         // Grabs current theme and puts it at the beginning of the collection
1170         currentTheme: function() {
1171                 var self = this,
1172                         current;
1173
1174                 current = self.collection.findWhere({ active: true });
1175
1176                 // Move the active theme to the beginning of the collection
1177                 if ( current ) {
1178                         self.collection.remove( current );
1179                         self.collection.add( current, { at:0 } );
1180                 }
1181         },
1182
1183         // Sets current view
1184         setView: function( view ) {
1185                 return view;
1186         },
1187
1188         // Renders the overlay with the ThemeDetails view
1189         // Uses the current model data
1190         expand: function( id ) {
1191                 var self = this, $card, $modal;
1192
1193                 // Set the current theme model
1194                 this.model = self.collection.get( id );
1195
1196                 // Trigger a route update for the current model
1197                 themes.router.navigate( themes.router.baseUrl( themes.router.themePath + this.model.id ) );
1198
1199                 // Sets this.view to 'detail'
1200                 this.setView( 'detail' );
1201                 $( 'body' ).addClass( 'modal-open' );
1202
1203                 // Set up the theme details view
1204                 this.overlay = new themes.view.Details({
1205                         model: self.model
1206                 });
1207
1208                 this.overlay.render();
1209
1210                 if ( this.model.get( 'hasUpdate' ) ) {
1211                         $card  = $( '[data-slug="' + this.model.id + '"]' );
1212                         $modal = $( this.overlay.el );
1213
1214                         if ( $card.find( '.updating-message' ).length ) {
1215                                 $modal.find( '.notice-warning h3' ).remove();
1216                                 $modal.find( '.notice-warning' )
1217                                         .removeClass( 'notice-large' )
1218                                         .addClass( 'updating-message' )
1219                                         .find( 'p' ).text( wp.updates.l10n.updating );
1220                         } else if ( $card.find( '.notice-error' ).length ) {
1221                                 $modal.find( '.notice-warning' ).remove();
1222                         }
1223                 }
1224
1225                 this.$overlay.html( this.overlay.el );
1226
1227                 // Bind to theme:next and theme:previous
1228                 // triggered by the arrow keys
1229                 //
1230                 // Keep track of the current model so we
1231                 // can infer an index position
1232                 this.listenTo( this.overlay, 'theme:next', function() {
1233                         // Renders the next theme on the overlay
1234                         self.next( [ self.model.cid ] );
1235
1236                 })
1237                 .listenTo( this.overlay, 'theme:previous', function() {
1238                         // Renders the previous theme on the overlay
1239                         self.previous( [ self.model.cid ] );
1240                 });
1241         },
1242
1243         // This method renders the next theme on the overlay modal
1244         // based on the current position in the collection
1245         // @params [model cid]
1246         next: function( args ) {
1247                 var self = this,
1248                         model, nextModel;
1249
1250                 // Get the current theme
1251                 model = self.collection.get( args[0] );
1252                 // Find the next model within the collection
1253                 nextModel = self.collection.at( self.collection.indexOf( model ) + 1 );
1254
1255                 // Sanity check which also serves as a boundary test
1256                 if ( nextModel !== undefined ) {
1257
1258                         // We have a new theme...
1259                         // Close the overlay
1260                         this.overlay.closeOverlay();
1261
1262                         // Trigger a route update for the current model
1263                         self.theme.trigger( 'theme:expand', nextModel.cid );
1264
1265                 }
1266         },
1267
1268         // This method renders the previous theme on the overlay modal
1269         // based on the current position in the collection
1270         // @params [model cid]
1271         previous: function( args ) {
1272                 var self = this,
1273                         model, previousModel;
1274
1275                 // Get the current theme
1276                 model = self.collection.get( args[0] );
1277                 // Find the previous model within the collection
1278                 previousModel = self.collection.at( self.collection.indexOf( model ) - 1 );
1279
1280                 if ( previousModel !== undefined ) {
1281
1282                         // We have a new theme...
1283                         // Close the overlay
1284                         this.overlay.closeOverlay();
1285
1286                         // Trigger a route update for the current model
1287                         self.theme.trigger( 'theme:expand', previousModel.cid );
1288
1289                 }
1290         },
1291
1292         // Dispatch audible search results feedback message
1293         announceSearchResults: function( count ) {
1294                 if ( 0 === count ) {
1295                         wp.a11y.speak( l10n.noThemesFound );
1296                 } else {
1297                         wp.a11y.speak( l10n.themesFound.replace( '%d', count ) );
1298                 }
1299         }
1300 });
1301
1302 // Search input view controller.
1303 themes.view.Search = wp.Backbone.View.extend({
1304
1305         tagName: 'input',
1306         className: 'wp-filter-search',
1307         id: 'wp-filter-search-input',
1308         searching: false,
1309
1310         attributes: {
1311                 placeholder: l10n.searchPlaceholder,
1312                 type: 'search',
1313                 'aria-describedby': 'live-search-desc'
1314         },
1315
1316         events: {
1317                 'input': 'search',
1318                 'keyup': 'search',
1319                 'blur': 'pushState'
1320         },
1321
1322         initialize: function( options ) {
1323
1324                 this.parent = options.parent;
1325
1326                 this.listenTo( this.parent, 'theme:close', function() {
1327                         this.searching = false;
1328                 } );
1329
1330         },
1331
1332         search: function( event ) {
1333                 // Clear on escape.
1334                 if ( event.type === 'keyup' && event.which === 27 ) {
1335                         event.target.value = '';
1336                 }
1337
1338                 /**
1339                  * Since doSearch is debounced, it will only run when user input comes to a rest
1340                  */
1341                 this.doSearch( event );
1342         },
1343
1344         // Runs a search on the theme collection.
1345         doSearch: _.debounce( function( event ) {
1346                 var options = {};
1347
1348                 this.collection.doSearch( event.target.value );
1349
1350                 // if search is initiated and key is not return
1351                 if ( this.searching && event.which !== 13 ) {
1352                         options.replace = true;
1353                 } else {
1354                         this.searching = true;
1355                 }
1356
1357                 // Update the URL hash
1358                 if ( event.target.value ) {
1359                         themes.router.navigate( themes.router.baseUrl( themes.router.searchPath + event.target.value ), options );
1360                 } else {
1361                         themes.router.navigate( themes.router.baseUrl( '' ) );
1362                 }
1363         }, 500 ),
1364
1365         pushState: function( event ) {
1366                 var url = themes.router.baseUrl( '' );
1367
1368                 if ( event.target.value ) {
1369                         url = themes.router.baseUrl( themes.router.searchPath + event.target.value );
1370                 }
1371
1372                 this.searching = false;
1373                 themes.router.navigate( url );
1374
1375         }
1376 });
1377
1378 // Sets up the routes events for relevant url queries
1379 // Listens to [theme] and [search] params
1380 themes.Router = Backbone.Router.extend({
1381
1382         routes: {
1383                 'themes.php?theme=:slug': 'theme',
1384                 'themes.php?search=:query': 'search',
1385                 'themes.php?s=:query': 'search',
1386                 'themes.php': 'themes',
1387                 '': 'themes'
1388         },
1389
1390         baseUrl: function( url ) {
1391                 return 'themes.php' + url;
1392         },
1393
1394         themePath: '?theme=',
1395         searchPath: '?search=',
1396
1397         search: function( query ) {
1398                 $( '.wp-filter-search' ).val( query );
1399         },
1400
1401         themes: function() {
1402                 $( '.wp-filter-search' ).val( '' );
1403         },
1404
1405         navigate: function() {
1406                 if ( Backbone.history._hasPushState ) {
1407                         Backbone.Router.prototype.navigate.apply( this, arguments );
1408                 }
1409         }
1410
1411 });
1412
1413 // Execute and setup the application
1414 themes.Run = {
1415         init: function() {
1416                 // Initializes the blog's theme library view
1417                 // Create a new collection with data
1418                 this.themes = new themes.Collection( themes.data.themes );
1419
1420                 // Set up the view
1421                 this.view = new themes.view.Appearance({
1422                         collection: this.themes
1423                 });
1424
1425                 this.render();
1426         },
1427
1428         render: function() {
1429
1430                 // Render results
1431                 this.view.render();
1432                 this.routes();
1433
1434                 Backbone.history.start({
1435                         root: themes.data.settings.adminUrl,
1436                         pushState: true,
1437                         hashChange: false
1438                 });
1439         },
1440
1441         routes: function() {
1442                 var self = this;
1443                 // Bind to our global thx object
1444                 // so that the object is available to sub-views
1445                 themes.router = new themes.Router();
1446
1447                 // Handles theme details route event
1448                 themes.router.on( 'route:theme', function( slug ) {
1449                         self.view.view.expand( slug );
1450                 });
1451
1452                 themes.router.on( 'route:themes', function() {
1453                         self.themes.doSearch( '' );
1454                         self.view.trigger( 'theme:close' );
1455                 });
1456
1457                 // Handles search route event
1458                 themes.router.on( 'route:search', function() {
1459                         $( '.wp-filter-search' ).trigger( 'keyup' );
1460                 });
1461
1462                 this.extraRoutes();
1463         },
1464
1465         extraRoutes: function() {
1466                 return false;
1467         }
1468 };
1469
1470 // Extend the main Search view
1471 themes.view.InstallerSearch =  themes.view.Search.extend({
1472
1473         events: {
1474                 'input': 'search',
1475                 'keyup': 'search'
1476         },
1477
1478         terms: '',
1479
1480         // Handles Ajax request for searching through themes in public repo
1481         search: function( event ) {
1482
1483                 // Tabbing or reverse tabbing into the search input shouldn't trigger a search
1484                 if ( event.type === 'keyup' && ( event.which === 9 || event.which === 16 ) ) {
1485                         return;
1486                 }
1487
1488                 this.collection = this.options.parent.view.collection;
1489
1490                 // Clear on escape.
1491                 if ( event.type === 'keyup' && event.which === 27 ) {
1492                         event.target.value = '';
1493                 }
1494
1495                 this.doSearch( event.target.value );
1496         },
1497
1498         doSearch: _.debounce( function( value ) {
1499                 var request = {};
1500
1501                 // Don't do anything if the search terms haven't changed.
1502                 if ( this.terms === value ) {
1503                         return;
1504                 }
1505
1506                 // Updates terms with the value passed.
1507                 this.terms = value;
1508
1509                 request.search = value;
1510
1511                 // Intercept an [author] search.
1512                 //
1513                 // If input value starts with `author:` send a request
1514                 // for `author` instead of a regular `search`
1515                 if ( value.substring( 0, 7 ) === 'author:' ) {
1516                         request.search = '';
1517                         request.author = value.slice( 7 );
1518                 }
1519
1520                 // Intercept a [tag] search.
1521                 //
1522                 // If input value starts with `tag:` send a request
1523                 // for `tag` instead of a regular `search`
1524                 if ( value.substring( 0, 4 ) === 'tag:' ) {
1525                         request.search = '';
1526                         request.tag = [ value.slice( 4 ) ];
1527                 }
1528
1529                 $( '.filter-links li > a.current' ).removeClass( 'current' );
1530                 $( 'body' ).removeClass( 'show-filters filters-applied show-favorites-form' );
1531                 $( '.drawer-toggle' ).attr( 'aria-expanded', 'false' );
1532
1533                 // Get the themes by sending Ajax POST request to api.wordpress.org/themes
1534                 // or searching the local cache
1535                 this.collection.query( request );
1536
1537                 // Set route
1538                 themes.router.navigate( themes.router.baseUrl( themes.router.searchPath + value ), { replace: true } );
1539         }, 500 )
1540 });
1541
1542 themes.view.Installer = themes.view.Appearance.extend({
1543
1544         el: '#wpbody-content .wrap',
1545
1546         // Register events for sorting and filters in theme-navigation
1547         events: {
1548                 'click .filter-links li > a': 'onSort',
1549                 'click .theme-filter': 'onFilter',
1550                 'click .drawer-toggle': 'moreFilters',
1551                 'click .filter-drawer .apply-filters': 'applyFilters',
1552                 'click .filter-group [type="checkbox"]': 'addFilter',
1553                 'click .filter-drawer .clear-filters': 'clearFilters',
1554                 'click .edit-filters': 'backToFilters',
1555                 'click .favorites-form-submit' : 'saveUsername',
1556                 'keyup #wporg-username-input': 'saveUsername'
1557         },
1558
1559         // Initial render method
1560         render: function() {
1561                 var self = this;
1562
1563                 this.search();
1564                 this.uploader();
1565
1566                 this.collection = new themes.Collection();
1567
1568                 // Bump `collection.currentQuery.page` and request more themes if we hit the end of the page.
1569                 this.listenTo( this, 'theme:end', function() {
1570
1571                         // Make sure we are not already loading
1572                         if ( self.collection.loadingThemes ) {
1573                                 return;
1574                         }
1575
1576                         // Set loadingThemes to true and bump page instance of currentQuery.
1577                         self.collection.loadingThemes = true;
1578                         self.collection.currentQuery.page++;
1579
1580                         // Use currentQuery.page to build the themes request.
1581                         _.extend( self.collection.currentQuery.request, { page: self.collection.currentQuery.page } );
1582                         self.collection.query( self.collection.currentQuery.request );
1583                 });
1584
1585                 this.listenTo( this.collection, 'query:success', function() {
1586                         $( 'body' ).removeClass( 'loading-content' );
1587                         $( '.theme-browser' ).find( 'div.error' ).remove();
1588                 });
1589
1590                 this.listenTo( this.collection, 'query:fail', function() {
1591                         $( 'body' ).removeClass( 'loading-content' );
1592                         $( '.theme-browser' ).find( 'div.error' ).remove();
1593                         $( '.theme-browser' ).find( 'div.themes' ).before( '<div class="error"><p>' + l10n.error + '</p></div>' );
1594                 });
1595
1596                 if ( this.view ) {
1597                         this.view.remove();
1598                 }
1599
1600                 // Set ups the view and passes the section argument
1601                 this.view = new themes.view.Themes({
1602                         collection: this.collection,
1603                         parent: this
1604                 });
1605
1606                 // Reset pagination every time the install view handler is run
1607                 this.page = 0;
1608
1609                 // Render and append
1610                 this.$el.find( '.themes' ).remove();
1611                 this.view.render();
1612                 this.$el.find( '.theme-browser' ).append( this.view.el ).addClass( 'rendered' );
1613         },
1614
1615         // Handles all the rendering of the public theme directory
1616         browse: function( section ) {
1617                 // Create a new collection with the proper theme data
1618                 // for each section
1619                 this.collection.query( { browse: section } );
1620         },
1621
1622         // Sorting navigation
1623         onSort: function( event ) {
1624                 var $el = $( event.target ),
1625                         sort = $el.data( 'sort' );
1626
1627                 event.preventDefault();
1628
1629                 $( 'body' ).removeClass( 'filters-applied show-filters' );
1630                 $( '.drawer-toggle' ).attr( 'aria-expanded', 'false' );
1631
1632                 // Bail if this is already active
1633                 if ( $el.hasClass( this.activeClass ) ) {
1634                         return;
1635                 }
1636
1637                 this.sort( sort );
1638
1639                 // Trigger a router.naviagte update
1640                 themes.router.navigate( themes.router.baseUrl( themes.router.browsePath + sort ) );
1641         },
1642
1643         sort: function( sort ) {
1644                 this.clearSearch();
1645
1646                 $( '.filter-links li > a, .theme-filter' ).removeClass( this.activeClass );
1647                 $( '[data-sort="' + sort + '"]' ).addClass( this.activeClass );
1648
1649                 if ( 'favorites' === sort ) {
1650                         $( 'body' ).addClass( 'show-favorites-form' );
1651                 } else {
1652                         $( 'body' ).removeClass( 'show-favorites-form' );
1653                 }
1654
1655                 this.browse( sort );
1656         },
1657
1658         // Filters and Tags
1659         onFilter: function( event ) {
1660                 var request,
1661                         $el = $( event.target ),
1662                         filter = $el.data( 'filter' );
1663
1664                 // Bail if this is already active
1665                 if ( $el.hasClass( this.activeClass ) ) {
1666                         return;
1667                 }
1668
1669                 $( '.filter-links li > a, .theme-section' ).removeClass( this.activeClass );
1670                 $el.addClass( this.activeClass );
1671
1672                 if ( ! filter ) {
1673                         return;
1674                 }
1675
1676                 // Construct the filter request
1677                 // using the default values
1678                 filter = _.union( [ filter, this.filtersChecked() ] );
1679                 request = { tag: [ filter ] };
1680
1681                 // Get the themes by sending Ajax POST request to api.wordpress.org/themes
1682                 // or searching the local cache
1683                 this.collection.query( request );
1684         },
1685
1686         // Clicking on a checkbox to add another filter to the request
1687         addFilter: function() {
1688                 this.filtersChecked();
1689         },
1690
1691         // Applying filters triggers a tag request
1692         applyFilters: function( event ) {
1693                 var name,
1694                         tags = this.filtersChecked(),
1695                         request = { tag: tags },
1696                         filteringBy = $( '.filtered-by .tags' );
1697
1698                 if ( event ) {
1699                         event.preventDefault();
1700                 }
1701
1702                 if ( ! tags ) {
1703                         wp.a11y.speak( l10n.selectFeatureFilter );
1704                         return;
1705                 }
1706
1707                 $( 'body' ).addClass( 'filters-applied' );
1708                 $( '.filter-links li > a.current' ).removeClass( 'current' );
1709                 filteringBy.empty();
1710
1711                 _.each( tags, function( tag ) {
1712                         name = $( 'label[for="filter-id-' + tag + '"]' ).text();
1713                         filteringBy.append( '<span class="tag">' + name + '</span>' );
1714                 });
1715
1716                 // Get the themes by sending Ajax POST request to api.wordpress.org/themes
1717                 // or searching the local cache
1718                 this.collection.query( request );
1719         },
1720
1721         // Save the user's WordPress.org username and get his favorite themes.
1722         saveUsername: function ( event ) {
1723                 var username = $( '#wporg-username-input' ).val(),
1724                         nonce = $( '#wporg-username-nonce' ).val(),
1725                         request = { browse: 'favorites', user: username },
1726                         that = this;
1727
1728                 if ( event ) {
1729                         event.preventDefault();
1730                 }
1731
1732                 // save username on enter
1733                 if ( event.type === 'keyup' && event.which !== 13 ) {
1734                         return;
1735                 }
1736
1737                 return wp.ajax.send( 'save-wporg-username', {
1738                         data: {
1739                                 _wpnonce: nonce,
1740                                 username: username
1741                         },
1742                         success: function () {
1743                                 // Get the themes by sending Ajax POST request to api.wordpress.org/themes
1744                                 // or searching the local cache
1745                                 that.collection.query( request );
1746                         }
1747                 } );
1748         },
1749
1750         // Get the checked filters
1751         // @return {array} of tags or false
1752         filtersChecked: function() {
1753                 var items = $( '.filter-group' ).find( ':checkbox' ),
1754                         tags = [];
1755
1756                 _.each( items.filter( ':checked' ), function( item ) {
1757                         tags.push( $( item ).prop( 'value' ) );
1758                 });
1759
1760                 // When no filters are checked, restore initial state and return
1761                 if ( tags.length === 0 ) {
1762                         $( '.filter-drawer .apply-filters' ).find( 'span' ).text( '' );
1763                         $( '.filter-drawer .clear-filters' ).hide();
1764                         $( 'body' ).removeClass( 'filters-applied' );
1765                         return false;
1766                 }
1767
1768                 $( '.filter-drawer .apply-filters' ).find( 'span' ).text( tags.length );
1769                 $( '.filter-drawer .clear-filters' ).css( 'display', 'inline-block' );
1770
1771                 return tags;
1772         },
1773
1774         activeClass: 'current',
1775
1776         // Overwrite search container class to append search
1777         // in new location
1778         searchContainer: $( '.wp-filter .search-form' ),
1779
1780         /*
1781          * When users press the "Upload Theme" button, show the upload form in place.
1782          */
1783         uploader: function() {
1784                 var uploadViewToggle = $( '.upload-view-toggle' ),
1785                         $body = $( document.body );
1786
1787                 uploadViewToggle.on( 'click', function() {
1788                         // Toggle the upload view.
1789                         $body.toggleClass( 'show-upload-view' );
1790                         // Toggle the `aria-expanded` button attribute.
1791                         uploadViewToggle.attr( 'aria-expanded', $body.hasClass( 'show-upload-view' ) );
1792                 });
1793         },
1794
1795         // Toggle the full filters navigation
1796         moreFilters: function( event ) {
1797                 var $body = $( 'body' ),
1798                         $toggleButton = $( '.drawer-toggle' );
1799
1800                 event.preventDefault();
1801
1802                 if ( $body.hasClass( 'filters-applied' ) ) {
1803                         return this.backToFilters();
1804                 }
1805
1806                 this.clearSearch();
1807
1808                 themes.router.navigate( themes.router.baseUrl( '' ) );
1809                 // Toggle the feature filters view.
1810                 $body.toggleClass( 'show-filters' );
1811                 // Toggle the `aria-expanded` button attribute.
1812                 $toggleButton.attr( 'aria-expanded', $body.hasClass( 'show-filters' ) );
1813         },
1814
1815         // Clears all the checked filters
1816         // @uses filtersChecked()
1817         clearFilters: function( event ) {
1818                 var items = $( '.filter-group' ).find( ':checkbox' ),
1819                         self = this;
1820
1821                 event.preventDefault();
1822
1823                 _.each( items.filter( ':checked' ), function( item ) {
1824                         $( item ).prop( 'checked', false );
1825                         return self.filtersChecked();
1826                 });
1827         },
1828
1829         backToFilters: function( event ) {
1830                 if ( event ) {
1831                         event.preventDefault();
1832                 }
1833
1834                 $( 'body' ).removeClass( 'filters-applied' );
1835         },
1836
1837         clearSearch: function() {
1838                 $( '#wp-filter-search-input').val( '' );
1839         }
1840 });
1841
1842 themes.InstallerRouter = Backbone.Router.extend({
1843         routes: {
1844                 'theme-install.php?theme=:slug': 'preview',
1845                 'theme-install.php?browse=:sort': 'sort',
1846                 'theme-install.php?search=:query': 'search',
1847                 'theme-install.php': 'sort'
1848         },
1849
1850         baseUrl: function( url ) {
1851                 return 'theme-install.php' + url;
1852         },
1853
1854         themePath: '?theme=',
1855         browsePath: '?browse=',
1856         searchPath: '?search=',
1857
1858         search: function( query ) {
1859                 $( '.wp-filter-search' ).val( query );
1860         },
1861
1862         navigate: function() {
1863                 if ( Backbone.history._hasPushState ) {
1864                         Backbone.Router.prototype.navigate.apply( this, arguments );
1865                 }
1866         }
1867 });
1868
1869
1870 themes.RunInstaller = {
1871
1872         init: function() {
1873                 // Set up the view
1874                 // Passes the default 'section' as an option
1875                 this.view = new themes.view.Installer({
1876                         section: 'featured',
1877                         SearchView: themes.view.InstallerSearch
1878                 });
1879
1880                 // Render results
1881                 this.render();
1882
1883         },
1884
1885         render: function() {
1886
1887                 // Render results
1888                 this.view.render();
1889                 this.routes();
1890
1891                 Backbone.history.start({
1892                         root: themes.data.settings.adminUrl,
1893                         pushState: true,
1894                         hashChange: false
1895                 });
1896         },
1897
1898         routes: function() {
1899                 var self = this,
1900                         request = {};
1901
1902                 // Bind to our global `wp.themes` object
1903                 // so that the router is available to sub-views
1904                 themes.router = new themes.InstallerRouter();
1905
1906                 // Handles `theme` route event
1907                 // Queries the API for the passed theme slug
1908                 themes.router.on( 'route:preview', function( slug ) {
1909                         request.theme = slug;
1910                         self.view.collection.query( request );
1911                         self.view.collection.once( 'update', function() {
1912                                 self.view.view.theme.preview();
1913                         });
1914                 });
1915
1916                 // Handles sorting / browsing routes
1917                 // Also handles the root URL triggering a sort request
1918                 // for `featured`, the default view
1919                 themes.router.on( 'route:sort', function( sort ) {
1920                         if ( ! sort ) {
1921                                 sort = 'featured';
1922                         }
1923                         self.view.sort( sort );
1924                         self.view.trigger( 'theme:close' );
1925                 });
1926
1927                 // The `search` route event. The router populates the input field.
1928                 themes.router.on( 'route:search', function() {
1929                         $( '.wp-filter-search' ).focus().trigger( 'keyup' );
1930                 });
1931
1932                 this.extraRoutes();
1933         },
1934
1935         extraRoutes: function() {
1936                 return false;
1937         }
1938 };
1939
1940 // Ready...
1941 $( document ).ready(function() {
1942         if ( themes.isInstall ) {
1943                 themes.RunInstaller.init();
1944         } else {
1945                 themes.Run.init();
1946         }
1947
1948         $( '.broken-themes .delete-theme' ).on( 'click', function() {
1949                 return confirm( _wpThemeSettings.settings.confirmDelete );
1950         });
1951 });
1952
1953 })( jQuery );
1954
1955 // Align theme browser thickbox
1956 var tb_position;
1957 jQuery(document).ready( function($) {
1958         tb_position = function() {
1959                 var tbWindow = $('#TB_window'),
1960                         width = $(window).width(),
1961                         H = $(window).height(),
1962                         W = ( 1040 < width ) ? 1040 : width,
1963                         adminbar_height = 0;
1964
1965                 if ( $('#wpadminbar').length ) {
1966                         adminbar_height = parseInt( $('#wpadminbar').css('height'), 10 );
1967                 }
1968
1969                 if ( tbWindow.size() ) {
1970                         tbWindow.width( W - 50 ).height( H - 45 - adminbar_height );
1971                         $('#TB_iframeContent').width( W - 50 ).height( H - 75 - adminbar_height );
1972                         tbWindow.css({'margin-left': '-' + parseInt( ( ( W - 50 ) / 2 ), 10 ) + 'px'});
1973                         if ( typeof document.body.style.maxWidth !== 'undefined' ) {
1974                                 tbWindow.css({'top': 20 + adminbar_height + 'px', 'margin-top': '0'});
1975                         }
1976                 }
1977         };
1978
1979         $(window).resize(function(){ tb_position(); });
1980 });