wp-admin/js/customize-controls.dev.js

   1 (function( exports, $ ){
   2         var api = wp.customize;
   3
   4         /*
   5          * @param options
   6          * - previewer - The Previewer instance to sync with.
   7          * - transport - The transport to use for previewing. Supports 'refresh' and 'postMessage'.
   8          */
   9         api.Setting = api.Value.extend({
  10                 initialize: function( id, value, options ) {
  11                         var element;
  12
  13                         api.Value.prototype.initialize.call( this, value, options );
  14
  15                         this.id = id;
  16                         this.transport = this.transport || 'refresh';
  17
  18                         this.bind( this.preview );
  19                 },
  20                 preview: function() {
  21                         switch ( this.transport ) {
  22                                 case 'refresh':
  23                                         return this.previewer.refresh();
  24                                 case 'postMessage':
  25                                         return this.previewer.send( 'setting', [ this.id, this() ] );
  26                         }
  27                 }
  28         });
  29
  30         api.Control = api.Class.extend({
  31                 initialize: function( id, options ) {
  32                         var control = this,
  33                                 nodes, radios, settings;
  34
  35                         this.params = {};
  36                         $.extend( this, options || {} );
  37
  38                         this.id = id;
  39                         this.selector = '#customize-control-' + id.replace( ']', '' ).replace( '[', '-' );
  40                         this.container = $( this.selector );
  41
  42                         settings = $.map( this.params.settings, function( value ) {
  43                                 return value;
  44                         });
  45
  46                         api.apply( api, settings.concat( function() {
  47                                 var key;
  48
  49                                 control.settings = {};
  50                                 for ( key in control.params.settings ) {
  51                                         control.settings[ key ] = api( control.params.settings[ key ] );
  52                                 }
  53
  54                                 control.setting = control.settings['default'] || null;
  55                                 control.ready();
  56                         }) );
  57
  58                         control.elements = [];
  59
  60                         nodes  = this.container.find('[data-customize-setting-link]');
  61                         radios = {};
  62
  63                         nodes.each( function() {
  64                                 var node = $(this),
  65                                         name;
  66
  67                                 if ( node.is(':radio') ) {
  68                                         name = node.prop('name');
  69                                         if ( radios[ name ] )
  70                                                 return;
  71
  72                                         radios[ name ] = true;
  73                                         node = nodes.filter( '[name="' + name + '"]' );
  74                                 }
  75
  76                                 api( node.data('customizeSettingLink'), function( setting ) {
  77                                         var element = new api.Element( node );
  78                                         control.elements.push( element );
  79                                         element.sync( setting );
  80                                         element.set( setting() );
  81                                 });
  82                         });
  83                 },
  84
  85                 ready: function() {},
  86
  87                 dropdownInit: function() {
  88                         var control  = this,
  89                                 statuses = this.container.find('.dropdown-status'),
  90                                 params   = this.params,
  91                                 update   = function( to ) {
  92                                         if ( typeof     to === 'string' && params.statuses && params.statuses[ to ] )
  93                                                 statuses.html( params.statuses[ to ] ).show();
  94                                         else
  95                                                 statuses.hide();
  96                                 };
  97
  98                         // Support the .dropdown class to open/close complex elements
  99                         this.container.on( 'click', '.dropdown', function( event ) {
 100                                 event.preventDefault();
 101                                 control.container.toggleClass('open');
 102                         });
 103
 104                         this.setting.bind( update );
 105                         update( this.setting() );
 106                 }
 107         });
 108
 109         api.ColorControl = api.Control.extend({
 110                 ready: function() {
 111                         var control = this,
 112                                 rhex, spot, input, text, update;
 113
 114                         rhex   = /^#([A-Fa-f0-9]{3}){0,2}$/;
 115                         spot   = this.container.find('.dropdown-content');
 116                         input  = new api.Element( this.container.find('.color-picker-hex') );
 117                         update = function( color ) {
 118                                 spot.css( 'background', color );
 119                                 control.farbtastic.setColor( color );
 120                         };
 121
 122                         this.farbtastic = $.farbtastic( this.container.find('.farbtastic-placeholder'), control.setting.set );
 123
 124                         // Only pass through values that are valid hexes/empty.
 125                         input.sync( this.setting ).validate = function( to ) {
 126                                 return rhex.test( to ) ? to : null;
 127                         };
 128
 129                         this.setting.bind( update );
 130                         update( this.setting() );
 131
 132                         this.dropdownInit();
 133                 }
 134         });
 135
 136         api.UploadControl = api.Control.extend({
 137                 ready: function() {
 138                         var control = this;
 139
 140                         this.params.removed = this.params.removed || '';
 141
 142                         this.success = $.proxy( this.success, this );
 143
 144                         this.uploader = $.extend({
 145                                 container: this.container,
 146                                 browser:   this.container.find('.upload'),
 147                                 dropzone:  this.container.find('.upload-dropzone'),
 148                                 success:   this.success
 149                         }, this.uploader || {} );
 150
 151                         if ( this.uploader.supported ) {
 152                                 if ( control.params.context )
 153                                         control.uploader.param( 'post_data[context]', this.params.context );
 154
 155                                 control.uploader.param( 'post_data[theme]', api.settings.theme.stylesheet );
 156                         }
 157
 158                         this.uploader = new wp.Uploader( this.uploader );
 159
 160                         this.remover = this.container.find('.remove');
 161                         this.remover.click( function( event ) {
 162                                 control.setting.set( control.params.removed );
 163                                 event.preventDefault();
 164                         });
 165
 166                         this.removerVisibility = $.proxy( this.removerVisibility, this );
 167                         this.setting.bind( this.removerVisibility );
 168                         this.removerVisibility( this.setting.get() );
 169                 },
 170                 success: function( attachment ) {
 171                         this.setting.set( attachment.url );
 172                 },
 173                 removerVisibility: function( to ) {
 174                         this.remover.toggle( to != this.params.removed );
 175                 }
 176         });
 177
 178         api.ImageControl = api.UploadControl.extend({
 179                 ready: function() {
 180                         var control = this,
 181                                 panels;
 182
 183                         this.uploader = {
 184                                 init: function( up ) {
 185                                         var fallback, button;
 186
 187                                         if ( this.supports.dragdrop )
 188                                                 return;
 189
 190                                         // Maintain references while wrapping the fallback button.
 191                                         fallback = control.container.find( '.upload-fallback' );
 192                                         button   = fallback.children().detach();
 193
 194                                         this.browser.detach().empty().append( button );
 195                                         fallback.append( this.browser ).show();
 196                                 }
 197                         };
 198
 199                         api.UploadControl.prototype.ready.call( this );
 200
 201                         this.thumbnail    = this.container.find('.preview-thumbnail img');
 202                         this.thumbnailSrc = $.proxy( this.thumbnailSrc, this );
 203                         this.setting.bind( this.thumbnailSrc );
 204
 205                         this.library = this.container.find('.library');
 206
 207                         // Generate tab objects
 208                         this.tabs = {};
 209                         panels    = this.library.find('.library-content');
 210
 211                         this.library.children('ul').children('li').each( function() {
 212                                 var link  = $(this),
 213                                         id    = link.data('customizeTab'),
 214                                         panel = panels.filter('[data-customize-tab="' + id + '"]');
 215
 216                                 control.tabs[ id ] = {
 217                                         both:  link.add( panel ),
 218                                         link:  link,
 219                                         panel: panel
 220                                 };
 221                         });
 222
 223                         // Bind tab switch events
 224                         this.library.children('ul').on( 'click', 'li', function( event ) {
 225                                 var id  = $(this).data('customizeTab'),
 226                                         tab = control.tabs[ id ];
 227
 228                                 event.preventDefault();
 229
 230                                 if ( tab.link.hasClass('library-selected') )
 231                                         return;
 232
 233                                 control.selected.both.removeClass('library-selected');
 234                                 control.selected = tab;
 235                                 control.selected.both.addClass('library-selected');
 236                         });
 237
 238                         // Bind events to switch image urls.
 239                         this.library.on( 'click', 'a', function( event ) {
 240                                 var value = $(this).data('customizeImageValue');
 241
 242                                 if ( value ) {
 243                                         control.setting.set( value );
 244                                         event.preventDefault();
 245                                 }
 246                         });
 247
 248                         if ( this.tabs.uploaded ) {
 249                                 this.tabs.uploaded.target = this.library.find('.uploaded-target');
 250                                 if ( ! this.tabs.uploaded.panel.find('.thumbnail').length )
 251                                         this.tabs.uploaded.both.addClass('hidden');
 252                         }
 253
 254                         // Select a tab
 255                         panels.each( function() {
 256                                 var tab = control.tabs[ $(this).data('customizeTab') ];
 257
 258                                 // Select the first visible tab.
 259                                 if ( ! tab.link.hasClass('hidden') ) {
 260                                         control.selected = tab;
 261                                         tab.both.addClass('library-selected');
 262                                         return false;
 263                                 }
 264                         });
 265
 266                         this.dropdownInit();
 267                 },
 268                 success: function( attachment ) {
 269                         api.UploadControl.prototype.success.call( this, attachment );
 270
 271                         // Add the uploaded image to the uploaded tab.
 272                         if ( this.tabs.uploaded && this.tabs.uploaded.target.length ) {
 273                                 this.tabs.uploaded.both.removeClass('hidden');
 274
 275                                 attachment.element = $( '<a href="#" class="thumbnail"></a>' )
 276                                         .data( 'customizeImageValue', attachment.url )
 277                                         .append( '<img src="' +  attachment.url+ '" />' )
 278                                         .appendTo( this.tabs.uploaded.target );
 279                         }
 280                 },
 281                 thumbnailSrc: function( to ) {
 282                         if ( /^(https?:)?\/\//.test( to ) )
 283                                 this.thumbnail.prop( 'src', to ).show();
 284                         else
 285                                 this.thumbnail.hide();
 286                 }
 287         });
 288
 289         // Change objects contained within the main customize object to Settings.
 290         api.defaultConstructor = api.Setting;
 291
 292         // Create the collection of Control objects.
 293         api.control = new api.Values({ defaultConstructor: api.Control });
 294
 295         api.PreviewFrame = api.Messenger.extend({
 296                 sensitivity: 2000,
 297
 298                 initialize: function( params, options ) {
 299                         var deferred = $.Deferred(),
 300                                 self     = this;
 301
 302                         // This is the promise object.
 303                         deferred.promise( this );
 304
 305                         this.container = params.container;
 306                         this.signature = params.signature;
 307
 308                         $.extend( params, { channel: api.PreviewFrame.uuid() });
 309
 310                         api.Messenger.prototype.initialize.call( this, params, options );
 311
 312                         this.add( 'previewUrl', params.previewUrl );
 313
 314                         this.query = $.extend( params.query || {}, { customize_messenger_channel: this.channel() });
 315
 316                         this.run( deferred );
 317                 },
 318
 319                 run: function( deferred ) {
 320                         var self   = this,
 321                                 loaded = false,
 322                                 ready  = false;
 323
 324                         if ( this._ready )
 325                                 this.unbind( 'ready', this._ready );
 326
 327                         this._ready = function() {
 328                                 ready = true;
 329
 330                                 if ( loaded )
 331                                         deferred.resolveWith( self );
 332                         };
 333
 334                         this.bind( 'ready', this._ready );
 335
 336                         this.request = $.ajax( this.previewUrl(), {
 337                                 type: 'POST',
 338                                 data: this.query,
 339                                 xhrFields: {
 340                                         withCredentials: true
 341                                 }
 342                         } );
 343
 344                         this.request.fail( function() {
 345                                 deferred.rejectWith( self, [ 'request failure' ] );
 346                         });
 347
 348                         this.request.done( function( response ) {
 349                                 var location = self.request.getResponseHeader('Location'),
 350                                         signature = self.signature,
 351                                         index;
 352
 353                                 // Check if the location response header differs from the current URL.
 354                                 // If so, the request was redirected; try loading the requested page.
 355                                 if ( location && location != self.previewUrl() ) {
 356                                         deferred.rejectWith( self, [ 'redirect', location ] );
 357                                         return;
 358                                 }
 359
 360                                 // Check if the user is not logged in.
 361                                 if ( '0' === response ) {
 362                                         self.login( deferred );
 363                                         return;
 364                                 }
 365
 366                                 // Check for cheaters.
 367                                 if ( '-1' === response ) {
 368                                         deferred.rejectWith( self, [ 'cheatin' ] );
 369                                         return;
 370                                 }
 371
 372                                 // Check for a signature in the request.
 373                                 index = response.lastIndexOf( signature );
 374                                 if ( -1 === index || index < response.lastIndexOf('</html>') ) {
 375                                         deferred.rejectWith( self, [ 'unsigned' ] );
 376                                         return;
 377                                 }
 378
 379                                 // Strip the signature from the request.
 380                                 response = response.slice( 0, index ) + response.slice( index + signature.length );
 381
 382                                 // Create the iframe and inject the html content.
 383                                 self.iframe = $('<iframe />').appendTo( self.container );
 384
 385                                 // Bind load event after the iframe has been added to the page;
 386                                 // otherwise it will fire when injected into the DOM.
 387                                 self.iframe.one( 'load', function() {
 388                                         loaded = true;
 389
 390                                         if ( ready ) {
 391                                                 deferred.resolveWith( self );
 392                                         } else {
 393                                                 setTimeout( function() {
 394                                                         deferred.rejectWith( self, [ 'ready timeout' ] );
 395                                                 }, self.sensitivity );
 396                                         }
 397                                 });
 398
 399                                 self.targetWindow( self.iframe[0].contentWindow );
 400
 401                                 self.targetWindow().document.open();
 402                                 self.targetWindow().document.write( response );
 403                                 self.targetWindow().document.close();
 404                         });
 405                 },
 406
 407                 login: function( deferred ) {
 408                         var self = this,
 409                                 reject;
 410
 411                         reject = function() {
 412                                 deferred.rejectWith( self, [ 'logged out' ] );
 413                         };
 414
 415                         if ( this.triedLogin )
 416                                 return reject();
 417
 418                         // Check if we have an admin cookie.
 419                         $.get( api.settings.url.ajax, {
 420                                 action: 'logged-in'
 421                         }).fail( reject ).done( function( response ) {
 422                                 var iframe;
 423
 424                                 if ( '1' !== response )
 425                                         reject();
 426
 427                                 iframe = $('<iframe src="' + self.previewUrl() + '" />').hide();
 428                                 iframe.appendTo( self.container );
 429                                 iframe.load( function() {
 430                                         self.triedLogin = true;
 431
 432                                         iframe.remove();
 433                                         self.run( deferred );
 434                                 });
 435                         });
 436                 },
 437
 438                 destroy: function() {
 439                         api.Messenger.prototype.destroy.call( this );
 440                         this.request.abort();
 441
 442                         if ( this.iframe )
 443                                 this.iframe.remove();
 444
 445                         delete this.request;
 446                         delete this.iframe;
 447                         delete this.targetWindow;
 448                 }
 449         });
 450
 451         (function(){
 452                 var uuid = 0;
 453                 api.PreviewFrame.uuid = function() {
 454                         return 'preview-' + uuid++;
 455                 };
 456         }());
 457
 458         api.Previewer = api.Messenger.extend({
 459                 refreshBuffer: 250,
 460
 461                 /**
 462                  * Requires params:
 463                  *  - container  - a selector or jQuery element
 464                  *  - previewUrl - the URL of preview frame
 465                  */
 466                 initialize: function( params, options ) {
 467                         var self = this,
 468                                 rscheme = /^https?/,
 469                                 url;
 470
 471                         $.extend( this, options || {} );
 472
 473                         /*
 474                          * Wrap this.refresh to prevent it from hammering the servers:
 475                          *
 476                          * If refresh is called once and no other refresh requests are
 477                          * loading, trigger the request immediately.
 478                          *
 479                          * If refresh is called while another refresh request is loading,
 480                          * debounce the refresh requests:
 481                          * 1. Stop the loading request (as it is instantly outdated).
 482                          * 2. Trigger the new request once refresh hasn't been called for
 483                          *    self.refreshBuffer milliseconds.
 484                          */
 485                         this.refresh = (function( self ) {
 486                                 var refresh  = self.refresh,
 487                                         callback = function() {
 488                                                 timeout = null;
 489                                                 refresh.call( self );
 490                                         },
 491                                         timeout;
 492
 493                                 return function() {
 494                                         if ( typeof timeout !== 'number' ) {
 495                                                 if ( self.loading ) {
 496                                                         self.abort();
 497                                                 } else {
 498                                                         return callback();
 499                                                 }
 500                                         }
 501
 502                                         clearTimeout( timeout );
 503                                         timeout = setTimeout( callback, self.refreshBuffer );
 504                                 };
 505                         })( this );
 506
 507                         this.container   = api.ensure( params.container );
 508                         this.allowedUrls = params.allowedUrls;
 509                         this.signature   = params.signature;
 510
 511                         params.url = window.location.href;
 512
 513                         api.Messenger.prototype.initialize.call( this, params );
 514
 515                         this.add( 'scheme', this.origin() ).link( this.origin ).setter( function( to ) {
 516                                 var match = to.match( rscheme );
 517                                 return match ? match[0] : '';
 518                         });
 519
 520                         // Limit the URL to internal, front-end links.
 521                         //
 522                         // If the frontend and the admin are served from the same domain, load the
 523                         // preview over ssl if the customizer is being loaded over ssl. This avoids
 524                         // insecure content warnings. This is not attempted if the admin and frontend
 525                         // are on different domains to avoid the case where the frontend doesn't have
 526                         // ssl certs.
 527
 528                         this.add( 'previewUrl', params.previewUrl ).setter( function( to ) {
 529                                 var result;
 530
 531                                 // Check for URLs that include "/wp-admin/" or end in "/wp-admin".
 532                                 // Strip hashes and query strings before testing.
 533                                 if ( /\/wp-admin(\/|$)/.test( to.replace(/[#?].*$/, '') ) )
 534                                         return null;
 535
 536                                 // Attempt to match the URL to the control frame's scheme
 537                                 // and check if it's allowed. If not, try the original URL.
 538                                 $.each([ to.replace( rscheme, self.scheme() ), to ], function( i, url ) {
 539                                         $.each( self.allowedUrls, function( i, allowed ) {
 540                                                 if ( 0 === url.indexOf( allowed ) ) {
 541                                                         result = url;
 542                                                         return false;
 543                                                 }
 544                                         });
 545                                         if ( result )
 546                                                 return false;
 547                                 });
 548
 549                                 // If we found a matching result, return it. If not, bail.
 550                                 return result ? result : null;
 551                         });
 552
 553                         // Refresh the preview when the URL is changed (but not yet).
 554                         this.previewUrl.bind( this.refresh );
 555
 556                         this.scroll = 0;
 557                         this.bind( 'scroll', function( distance ) {
 558                                 this.scroll = distance;
 559                         });
 560
 561                         // Update the URL when the iframe sends a URL message.
 562                         this.bind( 'url', this.previewUrl );
 563                 },
 564
 565                 query: function() {},
 566
 567                 abort: function() {
 568                         if ( this.loading ) {
 569                                 this.loading.destroy();
 570                                 delete this.loading;
 571                         }
 572                 },
 573
 574                 refresh: function() {
 575                         var self = this;
 576
 577                         this.abort();
 578
 579                         this.loading = new api.PreviewFrame({
 580                                 url:        this.url(),
 581                                 previewUrl: this.previewUrl(),
 582                                 query:      this.query() || {},
 583                                 container:  this.container,
 584                                 signature:  this.signature
 585                         });
 586
 587                         this.loading.done( function() {
 588                                 // 'this' is the loading frame
 589                                 this.bind( 'synced', function() {
 590                                         if ( self.preview )
 591                                                 self.preview.destroy();
 592                                         self.preview = this;
 593                                         delete self.loading;
 594
 595                                         self.targetWindow( this.targetWindow() );
 596                                         self.channel( this.channel() );
 597
 598                                         self.send( 'active' );
 599                                 });
 600
 601                                 this.send( 'sync', {
 602                                         scroll:   self.scroll,
 603                                         settings: api.get()
 604                                 });
 605                         });
 606
 607                         this.loading.fail( function( reason, location ) {
 608                                 if ( 'redirect' === reason && location )
 609                                         self.previewUrl( location );
 610
 611                                 if ( 'logged out' === reason ) {
 612                                         if ( self.preview ) {
 613                                                 self.preview.destroy();
 614                                                 delete self.preview;
 615                                         }
 616
 617                                         self.login().done( self.refresh );
 618                                 }
 619
 620                                 if ( 'cheatin' === reason )
 621                                         self.cheatin();
 622                         });
 623                 },
 624
 625                 login: function() {
 626                         var previewer = this,
 627                                 deferred, messenger, iframe;
 628
 629                         if ( this._login )
 630                                 return this._login;
 631
 632                         deferred = $.Deferred();
 633                         this._login = deferred.promise();
 634
 635                         messenger = new api.Messenger({
 636                                 channel: 'login',
 637                                 url:     api.settings.url.login
 638                         });
 639
 640                         iframe = $('<iframe src="' + api.settings.url.login + '" />').appendTo( this.container );
 641
 642                         messenger.targetWindow( iframe[0].contentWindow );
 643
 644                         messenger.bind( 'login', function() {
 645                                 iframe.remove();
 646                                 messenger.destroy();
 647                                 delete previewer._login;
 648                                 deferred.resolve();
 649                         });
 650
 651                         return this._login;
 652                 },
 653
 654                 cheatin: function() {
 655                         $( document.body ).empty().addClass('cheatin').append( '<p>' + api.l10n.cheatin + '</p>' );
 656                 }
 657         });
 658
 659         /* =====================================================================
 660          * Ready.
 661          * ===================================================================== */
 662
 663         api.controlConstructor = {
 664                 color:  api.ColorControl,
 665                 upload: api.UploadControl,
 666                 image:  api.ImageControl
 667         };
 668
 669         $( function() {
 670                 api.settings = window._wpCustomizeSettings;
 671                 api.l10n = window._wpCustomizeControlsL10n;
 672
 673                 // Check if we can run the customizer.
 674                 if ( ! api.settings )
 675                         return;
 676
 677                 // Redirect to the fallback preview if any incompatibilities are found.
 678                 if ( ! $.support.postMessage || ( ! $.support.cors && api.settings.isCrossDomain ) )
 679                         return window.location = api.settings.url.fallback;
 680
 681                 var body = $( document.body ),
 682                         overlay = body.children('.wp-full-overlay'),
 683                         query, previewer, parent;
 684
 685                 // Prevent the form from saving when enter is pressed.
 686                 $('#customize-controls').on( 'keydown', function( e ) {
 687                         if ( $( e.target ).is('textarea') )
 688                                 return;
 689
 690                         if ( 13 === e.which ) // Enter
 691                                 e.preventDefault();
 692                 });
 693
 694                 // Initialize Previewer
 695                 previewer = new api.Previewer({
 696                         container:   '#customize-preview',
 697                         form:        '#customize-controls',
 698                         previewUrl:  api.settings.url.preview,
 699                         allowedUrls: api.settings.url.allowed,
 700                         signature:   'WP_CUSTOMIZER_SIGNATURE'
 701                 }, {
 702
 703                         nonce: api.settings.nonce,
 704
 705                         query: function() {
 706                                 return {
 707                                         wp_customize: 'on',
 708                                         theme:        api.settings.theme.stylesheet,
 709                                         customized:   JSON.stringify( api.get() ),
 710                                         nonce:        this.nonce.preview
 711                                 };
 712                         },
 713
 714                         save: function() {
 715                                 var self  = this,
 716                                         query = $.extend( this.query(), {
 717                                                 action: 'customize_save',
 718                                                 nonce:  this.nonce.save
 719                                         }),
 720                                         request = $.post( api.settings.url.ajax, query );
 721
 722                                 api.trigger( 'save', request );
 723
 724                                 body.addClass('saving');
 725
 726                                 request.always( function() {
 727                                         body.removeClass('saving');
 728                                 });
 729
 730                                 request.done( function( response ) {
 731                                         // Check if the user is logged out.
 732                                         if ( '0' === response ) {
 733                                                 self.preview.iframe.hide();
 734                                                 self.login().done( function() {
 735                                                         self.save();
 736                                                         self.preview.iframe.show();
 737                                                 });
 738                                                 return;
 739                                         }
 740
 741                                         // Check for cheaters.
 742                                         if ( '-1' === response ) {
 743                                                 self.cheatin();
 744                                                 return;
 745                                         }
 746
 747                                         api.trigger( 'saved' );
 748                                 });
 749                         }
 750                 });
 751
 752                 // Refresh the nonces if the preview sends updated nonces over.
 753                 previewer.bind( 'nonce', function( nonce ) {
 754                         $.extend( this.nonce, nonce );
 755                 });
 756
 757                 $.each( api.settings.settings, function( id, data ) {
 758                         api.create( id, id, data.value, {
 759                                 transport: data.transport,
 760                                 previewer: previewer
 761                         } );
 762                 });
 763
 764                 $.each( api.settings.controls, function( id, data ) {
 765                         var constructor = api.controlConstructor[ data.type ] || api.Control,
 766                                 control;
 767
 768                         control = api.control.add( id, new constructor( id, {
 769                                 params: data,
 770                                 previewer: previewer
 771                         } ) );
 772                 });
 773
 774                 // Check if preview url is valid and load the preview frame.
 775                 if ( previewer.previewUrl() )
 776                         previewer.refresh();
 777                 else
 778                         previewer.previewUrl( api.settings.url.home );
 779
 780                 // Save and activated states
 781                 (function() {
 782                         var state = new api.Values(),
 783                                 saved = state.create('saved'),
 784                                 activated = state.create('activated');
 785
 786                         state.bind( 'change', function() {
 787                                 var save = $('#save'),
 788                                         back = $('.back');
 789
 790                                 if ( ! activated() ) {
 791                                         save.val( api.l10n.activate ).prop( 'disabled', false );
 792                                         back.text( api.l10n.cancel );
 793
 794                                 } else if ( saved() ) {
 795                                         save.val( api.l10n.saved ).prop( 'disabled', true );
 796                                         back.text( api.l10n.close );
 797
 798                                 } else {
 799                                         save.val( api.l10n.save ).prop( 'disabled', false );
 800                                         back.text( api.l10n.cancel );
 801                                 }
 802                         });
 803
 804                         // Set default states.
 805                         saved( true );
 806                         activated( api.settings.theme.active );
 807
 808                         api.bind( 'change', function() {
 809                                 state('saved').set( false );
 810                         });
 811
 812                         api.bind( 'saved', function() {
 813                                 state('saved').set( true );
 814                                 state('activated').set( true );
 815                         });
 816
 817                         activated.bind( function( to ) {
 818                                 if ( to )
 819                                         api.trigger( 'activated' );
 820                         });
 821
 822                         // Expose states to the API.
 823                         api.state = state;
 824                 }());
 825
 826                 // Temporary accordion code.
 827                 $('.customize-section-title').click( function( event ) {
 828                         var clicked = $( this ).parents( '.customize-section' );
 829
 830                         if ( clicked.hasClass('cannot-expand') )
 831                                 return;
 832
 833                         $( '.customize-section' ).not( clicked ).removeClass( 'open' );
 834                         clicked.toggleClass( 'open' );
 835                         event.preventDefault();
 836                 });
 837
 838                 // Button bindings.
 839                 $('#save').click( function( event ) {
 840                         previewer.save();
 841                         event.preventDefault();
 842                 });
 843
 844                 $('.collapse-sidebar').click( function( event ) {
 845                         overlay.toggleClass( 'collapsed' ).toggleClass( 'expanded' );
 846                         event.preventDefault();
 847                 });
 848
 849                 // Create a potential postMessage connection with the parent frame.
 850                 parent = new api.Messenger({
 851                         url: api.settings.url.parent,
 852                         channel: 'loader'
 853                 });
 854
 855                 // If we receive a 'back' event, we're inside an iframe.
 856                 // Send any clicks to the 'Return' link to the parent page.
 857                 parent.bind( 'back', function() {
 858                         $('.back').on( 'click.back', function( event ) {
 859                                 event.preventDefault();
 860                                 parent.send( 'close' );
 861                         });
 862                 });
 863
 864                 // Pass events through to the parent.
 865                 api.bind( 'saved', function() {
 866                         parent.send( 'saved' );
 867                 });
 868
 869                 // When activated, let the loader handle redirecting the page.
 870                 // If no loader exists, redirect the page ourselves (if a url exists).
 871                 api.bind( 'activated', function() {
 872                         if ( parent.targetWindow() )
 873                                 parent.send( 'activated', api.settings.url.activated );
 874                         else if ( api.settings.url.activated )
 875                                 window.location = api.settings.url.activated;
 876                 });
 877
 878                 // Initialize the connection with the parent frame.
 879                 parent.send( 'ready' );
 880
 881                 // Control visibility for default controls
 882                 $.each({
 883                         'background_image': {
 884                                 controls: [ 'background_repeat', 'background_position_x', 'background_attachment' ],
 885                                 callback: function( to ) { return !! to }
 886                         },
 887                         'show_on_front': {
 888                                 controls: [ 'page_on_front', 'page_for_posts' ],
 889                                 callback: function( to ) { return 'page' === to }
 890                         },
 891                         'header_textcolor': {
 892                                 controls: [ 'header_textcolor' ],
 893                                 callback: function( to ) { return 'blank' !== to }
 894                         }
 895                 }, function( settingId, o ) {
 896                         api( settingId, function( setting ) {
 897                                 $.each( o.controls, function( i, controlId ) {
 898                                         api.control( controlId, function( control ) {
 899                                                 var visibility = function( to ) {
 900                                                         control.container.toggle( o.callback( to ) );
 901                                                 };
 902
 903                                                 visibility( setting.get() );
 904                                                 setting.bind( visibility );
 905                                         });
 906                                 });
 907                         });
 908                 });
 909
 910                 // Juggle the two controls that use header_textcolor
 911                 api.control( 'display_header_text', function( control ) {
 912                         var last = '';
 913
 914                         control.elements[0].unsync( api( 'header_textcolor' ) );
 915
 916                         control.element = new api.Element( control.container.find('input') );
 917                         control.element.set( 'blank' !== control.setting() );
 918
 919                         control.element.bind( function( to ) {
 920                                 if ( ! to )
 921                                         last = api( 'header_textcolor' ).get();
 922
 923                                 control.setting.set( to ? last : 'blank' );
 924                         });
 925
 926                         control.setting.bind( function( to ) {
 927                                 control.element.set( 'blank' !== to );
 928                         });
 929                 });
 930
 931                 // Handle header image data
 932                 api.control( 'header_image', function( control ) {
 933                         control.setting.bind( function( to ) {
 934                                 if ( to === control.params.removed )
 935                                         control.settings.data.set( false );
 936                         });
 937
 938                         control.library.on( 'click', 'a', function( event ) {
 939                                 control.settings.data.set( $(this).data('customizeHeaderImageData') );
 940                         });
 941
 942                         control.uploader.success = function( attachment ) {
 943                                 var data;
 944
 945                                 api.ImageControl.prototype.success.call( control, attachment );
 946
 947                                 data = {
 948                                         attachment_id: attachment.id,
 949                                         url:           attachment.url,
 950                                         thumbnail_url: attachment.url,
 951                                         height:        attachment.meta.height,
 952                                         width:         attachment.meta.width
 953                                 };
 954
 955                                 attachment.element.data( 'customizeHeaderImageData', data );
 956                                 control.settings.data.set( data );
 957                         }
 958                 });
 959
 960                 api.trigger( 'ready' );
 961         });
 962
 963 })( wp, jQuery );