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                         // Select a tab
 224                         this.selected = this.tabs[ panels.first().data('customizeTab') ];
 225                         this.selected.both.addClass('library-selected');
 226
 227                         // Bind tab switch events
 228                         this.library.children('ul').on( 'click', 'li', function( event ) {
 229                                 var id  = $(this).data('customizeTab'),
 230                                         tab = control.tabs[ id ];
 231
 232                                 event.preventDefault();
 233
 234                                 if ( tab.link.hasClass('library-selected') )
 235                                         return;
 236
 237                                 control.selected.both.removeClass('library-selected');
 238                                 control.selected = tab;
 239                                 control.selected.both.addClass('library-selected');
 240                         });
 241
 242                         // Bind events to switch image urls.
 243                         this.library.on( 'click', 'a', function( event ) {
 244                                 var value = $(this).data('customizeImageValue');
 245
 246                                 if ( value ) {
 247                                         control.setting.set( value );
 248                                         event.preventDefault();
 249                                 }
 250                         });
 251
 252                         if ( this.tabs.uploaded ) {
 253                                 this.tabs.uploaded.target = this.library.find('.uploaded-target');
 254                                 if ( ! this.tabs.uploaded.panel.find('.thumbnail').length )
 255                                         this.tabs.uploaded.both.addClass('hidden');
 256                         }
 257
 258                         this.dropdownInit();
 259                 },
 260                 success: function( attachment ) {
 261                         api.UploadControl.prototype.success.call( this, attachment );
 262
 263                         // Add the uploaded image to the uploaded tab.
 264                         if ( this.tabs.uploaded && this.tabs.uploaded.target.length ) {
 265                                 this.tabs.uploaded.both.removeClass('hidden');
 266
 267                                 attachment.element = $( '<a href="#" class="thumbnail"></a>' )
 268                                         .data( 'customizeImageValue', attachment.url )
 269                                         .append( '<img src="' +  attachment.url+ '" />' )
 270                                         .appendTo( this.tabs.uploaded.target );
 271                         }
 272                 },
 273                 thumbnailSrc: function( to ) {
 274                         if ( /^(https?:)?\/\//.test( to ) )
 275                                 this.thumbnail.prop( 'src', to ).show();
 276                         else
 277                                 this.thumbnail.hide();
 278                 }
 279         });
 280
 281         // Change objects contained within the main customize object to Settings.
 282         api.defaultConstructor = api.Setting;
 283
 284         // Create the collection of Control objects.
 285         api.control = new api.Values({ defaultConstructor: api.Control });
 286
 287         api.PreviewFrame = api.Messenger.extend({
 288                 sensitivity: 2000,
 289
 290                 initialize: function( params, options ) {
 291                         var deferred = $.Deferred(),
 292                                 self     = this;
 293
 294                         // This is the promise object.
 295                         deferred.promise( this );
 296
 297                         this.previewer = params.previewer;
 298
 299                         $.extend( params, { channel: api.PreviewFrame.uuid() });
 300
 301                         api.Messenger.prototype.initialize.call( this, params, options );
 302
 303                         this.add( 'previewUrl', params.previewUrl );
 304
 305                         this.query = $.extend( params.query || {}, { customize_messenger_channel: this.channel() });
 306
 307                         this.run( deferred );
 308                 },
 309
 310                 run: function( deferred ) {
 311                         var self   = this,
 312                                 loaded = false,
 313                                 ready  = false;
 314
 315                         if ( this._ready )
 316                                 this.unbind( 'ready', this._ready );
 317
 318                         this._ready = function() {
 319                                 ready = true;
 320
 321                                 if ( loaded )
 322                                         deferred.resolveWith( self );
 323                         };
 324
 325                         this.bind( 'ready', this._ready );
 326
 327                         this.request = $.ajax( this.previewUrl(), {
 328                                 type: 'POST',
 329                                 data: this.query,
 330                                 xhrFields: {
 331                                         withCredentials: true
 332                                 }
 333                         } );
 334
 335                         this.request.fail( function() {
 336                                 deferred.rejectWith( self, [ 'request failure' ] );
 337                         });
 338
 339                         this.request.done( function( response ) {
 340                                 var location = self.request.getResponseHeader('Location'),
 341                                         signature = 'WP_CUSTOMIZER_SIGNATURE',
 342                                         index;
 343
 344                                 // Check if the location response header differs from the current URL.
 345                                 // If so, the request was redirected; try loading the requested page.
 346                                 if ( location && location != self.previewUrl() ) {
 347                                         deferred.rejectWith( self, [ 'redirect', location ] );
 348                                         return;
 349                                 }
 350
 351                                 // Check if the user is not logged in.
 352                                 if ( '0' === response ) {
 353                                         self.login( deferred );
 354                                         return;
 355                                 }
 356
 357                                 // Check for cheaters.
 358                                 if ( '-1' === response ) {
 359                                         deferred.rejectWith( self, [ 'cheatin' ] );
 360                                         return;
 361                                 }
 362
 363                                 // Check for a signature in the request.
 364                                 index = response.lastIndexOf( signature );
 365                                 if ( -1 === index || index < response.lastIndexOf('</html>') ) {
 366                                         deferred.rejectWith( self, [ 'unsigned' ] );
 367                                         return;
 368                                 }
 369
 370                                 // Strip the signature from the request.
 371                                 response = response.slice( 0, index ) + response.slice( index + signature.length );
 372
 373                                 // Create the iframe and inject the html content.
 374                                 self.iframe = $('<iframe />').appendTo( self.previewer.container );
 375
 376                                 // Bind load event after the iframe has been added to the page;
 377                                 // otherwise it will fire when injected into the DOM.
 378                                 self.iframe.one( 'load', function() {
 379                                         loaded = true;
 380
 381                                         if ( ready ) {
 382                                                 deferred.resolveWith( self );
 383                                         } else {
 384                                                 setTimeout( function() {
 385                                                         deferred.rejectWith( self, [ 'ready timeout' ] );
 386                                                 }, self.sensitivity );
 387                                         }
 388                                 });
 389
 390                                 self.targetWindow( self.iframe[0].contentWindow );
 391
 392                                 self.targetWindow().document.open();
 393                                 self.targetWindow().document.write( response );
 394                                 self.targetWindow().document.close();
 395                         });
 396                 },
 397
 398                 login: function( deferred ) {
 399                         var self = this,
 400                                 reject;
 401
 402                         reject = function() {
 403                                 deferred.rejectWith( self, [ 'logged out' ] );
 404                         };
 405
 406                         if ( this.triedLogin )
 407                                 return reject();
 408
 409                         // Check if we have an admin cookie.
 410                         $.get( api.settings.url.ajax, {
 411                                 action: 'logged-in'
 412                         }).fail( reject ).done( function( response ) {
 413                                 var iframe;
 414
 415                                 if ( '1' !== response )
 416                                         reject();
 417
 418                                 iframe = $('<iframe src="' + self.previewUrl() + '" />').hide();
 419                                 iframe.appendTo( self.previewer.container );
 420                                 iframe.load( function() {
 421                                         self.triedLogin = true;
 422
 423                                         iframe.remove();
 424                                         self.run( deferred );
 425                                 });
 426                         });
 427                 },
 428
 429                 destroy: function() {
 430                         api.Messenger.prototype.destroy.call( this );
 431                         this.request.abort();
 432
 433                         if ( this.iframe )
 434                                 this.iframe.remove();
 435
 436                         delete this.request;
 437                         delete this.iframe;
 438                         delete this.targetWindow;
 439                 }
 440         });
 441
 442         (function(){
 443                 var uuid = 0;
 444                 api.PreviewFrame.uuid = function() {
 445                         return 'preview-' + uuid++;
 446                 };
 447         }());
 448
 449         api.Previewer = api.Messenger.extend({
 450                 refreshBuffer: 250,
 451
 452                 /**
 453                  * Requires params:
 454                  *  - container  - a selector or jQuery element
 455                  *  - previewUrl - the URL of preview frame
 456                  */
 457                 initialize: function( params, options ) {
 458                         var self = this,
 459                                 rscheme = /^https?/,
 460                                 url;
 461
 462                         $.extend( this, options || {} );
 463
 464                         /*
 465                          * Wrap this.refresh to prevent it from hammering the servers:
 466                          *
 467                          * If refresh is called once and no other refresh requests are
 468                          * loading, trigger the request immediately.
 469                          *
 470                          * If refresh is called while another refresh request is loading,
 471                          * debounce the refresh requests:
 472                          * 1. Stop the loading request (as it is instantly outdated).
 473                          * 2. Trigger the new request once refresh hasn't been called for
 474                          *    self.refreshBuffer milliseconds.
 475                          */
 476                         this.refresh = (function( self ) {
 477                                 var refresh  = self.refresh,
 478                                         callback = function() {
 479                                                 timeout = null;
 480                                                 refresh.call( self );
 481                                         },
 482                                         timeout;
 483
 484                                 return function() {
 485                                         if ( typeof timeout !== 'number' ) {
 486                                                 if ( self.loading ) {
 487                                                         self.abort();
 488                                                 } else {
 489                                                         return callback();
 490                                                 }
 491                                         }
 492
 493                                         clearTimeout( timeout );
 494                                         timeout = setTimeout( callback, self.refreshBuffer );
 495                                 };
 496                         })( this );
 497
 498                         this.container   = api.ensure( params.container );
 499                         this.allowedUrls = params.allowedUrls;
 500
 501                         params.url = window.location.href;
 502
 503                         api.Messenger.prototype.initialize.call( this, params );
 504
 505                         this.add( 'scheme', this.origin() ).link( this.origin ).setter( function( to ) {
 506                                 var match = to.match( rscheme );
 507                                 return match ? match[0] : '';
 508                         });
 509
 510                         // Limit the URL to internal, front-end links.
 511                         //
 512                         // If the frontend and the admin are served from the same domain, load the
 513                         // preview over ssl if the customizer is being loaded over ssl. This avoids
 514                         // insecure content warnings. This is not attempted if the admin and frontend
 515                         // are on different domains to avoid the case where the frontend doesn't have
 516                         // ssl certs.
 517
 518                         this.add( 'previewUrl', params.previewUrl ).setter( function( to ) {
 519                                 var result;
 520
 521                                 // Check for URLs that include "/wp-admin/" or end in "/wp-admin".
 522                                 // Strip hashes and query strings before testing.
 523                                 if ( /\/wp-admin(\/|$)/.test( to.replace(/[#?].*$/, '') ) )
 524                                         return null;
 525
 526                                 // Attempt to match the URL to the control frame's scheme
 527                                 // and check if it's allowed. If not, try the original URL.
 528                                 $.each([ to.replace( rscheme, self.scheme() ), to ], function( i, url ) {
 529                                         $.each( self.allowedUrls, function( i, allowed ) {
 530                                                 if ( 0 === url.indexOf( allowed ) ) {
 531                                                         result = url;
 532                                                         return false;
 533                                                 }
 534                                         });
 535                                         if ( result )
 536                                                 return false;
 537                                 });
 538
 539                                 // If we found a matching result, return it. If not, bail.
 540                                 return result ? result : null;
 541                         });
 542
 543                         // Refresh the preview when the URL is changed (but not yet).
 544                         this.previewUrl.bind( this.refresh );
 545
 546                         this.scroll = 0;
 547                         this.bind( 'scroll', function( distance ) {
 548                                 this.scroll = distance;
 549                         });
 550
 551                         // Update the URL when the iframe sends a URL message.
 552                         this.bind( 'url', this.previewUrl );
 553                 },
 554
 555                 query: function() {},
 556
 557                 abort: function() {
 558                         if ( this.loading ) {
 559                                 this.loading.destroy();
 560                                 delete this.loading;
 561                         }
 562                 },
 563
 564                 refresh: function() {
 565                         var self = this;
 566
 567                         this.abort();
 568
 569                         this.loading = new api.PreviewFrame({
 570                                 url:        this.url(),
 571                                 previewUrl: this.previewUrl(),
 572                                 query:      this.query() || {},
 573                                 previewer:  this
 574                         });
 575
 576                         this.loading.done( function() {
 577                                 // 'this' is the loading frame
 578                                 this.bind( 'synced', function() {
 579                                         if ( self.preview )
 580                                                 self.preview.destroy();
 581                                         self.preview = this;
 582                                         delete self.loading;
 583
 584                                         self.targetWindow( this.targetWindow() );
 585                                         self.channel( this.channel() );
 586                                 });
 587
 588                                 this.send( 'sync', {
 589                                         scroll:   self.scroll,
 590                                         settings: api.get()
 591                                 });
 592                         });
 593
 594                         this.loading.fail( function( reason, location ) {
 595                                 if ( 'redirect' === reason && location )
 596                                         self.previewUrl( location );
 597
 598                                 if ( 'logged out' === reason ) {
 599                                         if ( self.preview ) {
 600                                                 self.preview.destroy();
 601                                                 delete self.preview;
 602                                         }
 603
 604                                         self.login().done( self.refresh );
 605                                 }
 606
 607                                 if ( 'cheatin' === reason )
 608                                         self.cheatin();
 609                         });
 610                 },
 611
 612                 login: function() {
 613                         var previewer = this,
 614                                 deferred, messenger, iframe;
 615
 616                         if ( this._login )
 617                                 return this._login;
 618
 619                         deferred = $.Deferred();
 620                         this._login = deferred.promise();
 621
 622                         messenger = new api.Messenger({
 623                                 channel: 'login',
 624                                 url:     api.settings.url.login
 625                         });
 626
 627                         iframe = $('<iframe src="' + api.settings.url.login + '" />').appendTo( this.container );
 628
 629                         messenger.targetWindow( iframe[0].contentWindow );
 630
 631                         messenger.bind( 'login', function() {
 632                                 iframe.remove();
 633                                 messenger.destroy();
 634                                 delete previewer._login;
 635                                 deferred.resolve();
 636                         });
 637
 638                         return this._login;
 639                 },
 640
 641                 cheatin: function() {
 642                         $( document.body ).empty().addClass('cheatin').append( '<p>' + api.l10n.cheatin + '</p>' );
 643                 }
 644         });
 645
 646         /* =====================================================================
 647          * Ready.
 648          * ===================================================================== */
 649
 650         api.controlConstructor = {
 651                 color:  api.ColorControl,
 652                 upload: api.UploadControl,
 653                 image:  api.ImageControl
 654         };
 655
 656         $( function() {
 657                 api.settings = window._wpCustomizeSettings;
 658                 api.l10n = window._wpCustomizeControlsL10n;
 659
 660                 // Check if we can run the customizer.
 661                 if ( ! api.settings )
 662                         return;
 663
 664                 // Redirect to the fallback preview if any incompatibilities are found.
 665                 if ( ! $.support.postMessage || ( ! $.support.cors && api.settings.isCrossDomain ) )
 666                         return window.location = api.settings.url.fallback;
 667
 668                 var body = $( document.body ),
 669                         overlay = body.children('.wp-full-overlay'),
 670                         query, previewer, parent;
 671
 672                 // Prevent the form from saving when enter is pressed.
 673                 $('#customize-controls').on( 'keydown', function( e ) {
 674                         if ( $( e.target ).is('textarea') )
 675                                 return;
 676
 677                         if ( 13 === e.which ) // Enter
 678                                 e.preventDefault();
 679                 });
 680
 681                 // Initialize Previewer
 682                 previewer = new api.Previewer({
 683                         container:   '#customize-preview',
 684                         form:        '#customize-controls',
 685                         previewUrl:  api.settings.url.preview,
 686                         allowedUrls: api.settings.url.allowed
 687                 }, {
 688                         query: function() {
 689                                 return {
 690                                         wp_customize: 'on',
 691                                         theme:        api.settings.theme.stylesheet,
 692                                         customized:   JSON.stringify( api.get() )
 693                                 };
 694                         },
 695
 696                         nonce: $('#_wpnonce').val(),
 697
 698                         save: function() {
 699                                 var self  = this,
 700                                         query = $.extend( this.query(), {
 701                                                 action: 'customize_save',
 702                                                 nonce:  this.nonce
 703                                         }),
 704                                         request = $.post( api.settings.url.ajax, query );
 705
 706                                 api.trigger( 'save', request );
 707
 708                                 body.addClass('saving');
 709
 710                                 request.always( function() {
 711                                         body.removeClass('saving');
 712                                 });
 713
 714                                 request.done( function( response ) {
 715                                         // Check if the user is logged out.
 716                                         if ( '0' === response ) {
 717                                                 self.preview.iframe.hide();
 718                                                 self.login().done( function() {
 719                                                         self.save();
 720                                                         self.preview.iframe.show();
 721                                                 });
 722                                                 return;
 723                                         }
 724
 725                                         // Check for cheaters.
 726                                         if ( '-1' === response ) {
 727                                                 self.cheatin();
 728                                                 return;
 729                                         }
 730
 731                                         api.trigger( 'saved' );
 732                                 });
 733                         }
 734                 });
 735
 736                 $.each( api.settings.settings, function( id, data ) {
 737                         api.create( id, id, data.value, {
 738                                 transport: data.transport,
 739                                 previewer: previewer
 740                         } );
 741                 });
 742
 743                 $.each( api.settings.controls, function( id, data ) {
 744                         var constructor = api.controlConstructor[ data.type ] || api.Control,
 745                                 control;
 746
 747                         control = api.control.add( id, new constructor( id, {
 748                                 params: data,
 749                                 previewer: previewer
 750                         } ) );
 751                 });
 752
 753                 // Check if preview url is valid and load the preview frame.
 754                 if ( previewer.previewUrl() )
 755                         previewer.refresh();
 756                 else
 757                         previewer.previewUrl( api.settings.url.home );
 758
 759                 // Save and activated states
 760                 (function() {
 761                         var state = new api.Values(),
 762                                 saved = state.create('saved'),
 763                                 activated = state.create('activated');
 764
 765                         state.bind( 'change', function() {
 766                                 var save = $('#save'),
 767                                         back = $('.back');
 768
 769                                 if ( ! activated() ) {
 770                                         save.val( api.l10n.activate ).prop( 'disabled', false );
 771                                         back.text( api.l10n.cancel );
 772
 773                                 } else if ( saved() ) {
 774                                         save.val( api.l10n.saved ).prop( 'disabled', true );
 775                                         back.text( api.l10n.close );
 776
 777                                 } else {
 778                                         save.val( api.l10n.save ).prop( 'disabled', false );
 779                                         back.text( api.l10n.cancel );
 780                                 }
 781                         });
 782
 783                         // Set default states.
 784                         saved( true );
 785                         activated( api.settings.theme.active );
 786
 787                         api.bind( 'change', function() {
 788                                 state('saved').set( false );
 789                         });
 790
 791                         api.bind( 'saved', function() {
 792                                 state('saved').set( true );
 793                                 state('activated').set( true );
 794                         });
 795
 796                         activated.bind( function( to ) {
 797                                 if ( to )
 798                                         api.trigger( 'activated' );
 799                         });
 800
 801                         // Expose states to the API.
 802                         api.state = state;
 803                 }());
 804
 805                 // Temporary accordion code.
 806                 $('.customize-section-title').click( function( event ) {
 807                         var clicked = $( this ).parents( '.customize-section' );
 808
 809                         if ( clicked.hasClass('cannot-expand') )
 810                                 return;
 811
 812                         $( '.customize-section' ).not( clicked ).removeClass( 'open' );
 813                         clicked.toggleClass( 'open' );
 814                         event.preventDefault();
 815                 });
 816
 817                 // Button bindings.
 818                 $('#save').click( function( event ) {
 819                         previewer.save();
 820                         event.preventDefault();
 821                 });
 822
 823                 $('.collapse-sidebar').click( function( event ) {
 824                         overlay.toggleClass( 'collapsed' ).toggleClass( 'expanded' );
 825                         event.preventDefault();
 826                 });
 827
 828                 // Create a potential postMessage connection with the parent frame.
 829                 parent = new api.Messenger({
 830                         url: api.settings.url.parent,
 831                         channel: 'loader'
 832                 });
 833
 834                 // If we receive a 'back' event, we're inside an iframe.
 835                 // Send any clicks to the 'Return' link to the parent page.
 836                 parent.bind( 'back', function() {
 837                         $('.back').on( 'click.back', function( event ) {
 838                                 event.preventDefault();
 839                                 parent.send( 'close' );
 840                         });
 841                 });
 842
 843                 // Pass events through to the parent.
 844                 api.bind( 'saved', function() {
 845                         parent.send( 'saved' );
 846                 });
 847
 848                 // When activated, let the loader handle redirecting the page.
 849                 // If no loader exists, redirect the page ourselves (if a url exists).
 850                 api.bind( 'activated', function() {
 851                         if ( parent.targetWindow() )
 852                                 parent.send( 'activated', api.settings.url.activated );
 853                         else if ( api.settings.url.activated )
 854                                 window.location = api.settings.url.activated;
 855                 });
 856
 857                 // Initialize the connection with the parent frame.
 858                 parent.send( 'ready' );
 859
 860                 // Control visibility for default controls
 861                 $.each({
 862                         'background_image': {
 863                                 controls: [ 'background_repeat', 'background_position_x', 'background_attachment' ],
 864                                 callback: function( to ) { return !! to }
 865                         },
 866                         'show_on_front': {
 867                                 controls: [ 'page_on_front', 'page_for_posts' ],
 868                                 callback: function( to ) { return 'page' === to }
 869                         },
 870                         'header_textcolor': {
 871                                 controls: [ 'header_textcolor' ],
 872                                 callback: function( to ) { return 'blank' !== to }
 873                         }
 874                 }, function( settingId, o ) {
 875                         api( settingId, function( setting ) {
 876                                 $.each( o.controls, function( i, controlId ) {
 877                                         api.control( controlId, function( control ) {
 878                                                 var visibility = function( to ) {
 879                                                         control.container.toggle( o.callback( to ) );
 880                                                 };
 881
 882                                                 visibility( setting.get() );
 883                                                 setting.bind( visibility );
 884                                         });
 885                                 });
 886                         });
 887                 });
 888
 889                 // Juggle the two controls that use header_textcolor
 890                 api.control( 'display_header_text', function( control ) {
 891                         var last = '';
 892
 893                         control.elements[0].unsync( api( 'header_textcolor' ) );
 894
 895                         control.element = new api.Element( control.container.find('input') );
 896                         control.element.set( 'blank' !== control.setting() );
 897
 898                         control.element.bind( function( to ) {
 899                                 if ( ! to )
 900                                         last = api( 'header_textcolor' ).get();
 901
 902                                 control.setting.set( to ? last : 'blank' );
 903                         });
 904
 905                         control.setting.bind( function( to ) {
 906                                 control.element.set( 'blank' !== to );
 907                         });
 908                 });
 909
 910                 // Handle header image data
 911                 api.control( 'header_image', function( control ) {
 912                         control.setting.bind( function( to ) {
 913                                 if ( to === control.params.removed )
 914                                         control.settings.data.set( false );
 915                         });
 916
 917                         control.library.on( 'click', 'a', function( event ) {
 918                                 control.settings.data.set( $(this).data('customizeHeaderImageData') );
 919                         });
 920
 921                         control.uploader.success = function( attachment ) {
 922                                 var data;
 923
 924                                 api.ImageControl.prototype.success.call( control, attachment );
 925
 926                                 data = {
 927                                         attachment_id: attachment.id,
 928                                         url:           attachment.url,
 929                                         thumbnail_url: attachment.url,
 930                                         height:        attachment.meta.height,
 931                                         width:         attachment.meta.width
 932                                 };
 933
 934                                 attachment.element.data( 'customizeHeaderImageData', data );
 935                                 control.settings.data.set( data );
 936                         }
 937                 });
 938
 939                 api.trigger( 'ready' );
 940         });
 941
 942 })( wp, jQuery );