wp-includes/js/customize-loader.dev.js

   1 if ( typeof wp === 'undefined' )
   2         var wp = {};
   3
   4 (function( exports, $ ){
   5         var api = wp.customize,
   6                 Loader;
   7
   8         $.extend( $.support, {
   9                 history: !! ( window.history && history.pushState ),
  10                 hashchange: ('onhashchange' in window) && (document.documentMode === undefined || document.documentMode > 7)
  11         });
  12
  13         Loader = $.extend( {}, api.Events, {
  14                 initialize: function() {
  15                         this.body = $( document.body );
  16
  17                         // Ensure the loader is supported.
  18                         // Check for settings, postMessage support, and whether we require CORS support.
  19                         if ( ! Loader.settings || ! $.support.postMessage || ( ! $.support.cors && Loader.settings.isCrossDomain ) ) {
  20                                 return;
  21                         }
  22
  23                         this.window  = $( window );
  24                         this.element = $( '<div id="customize-container" />' ).appendTo( this.body );
  25
  26                         this.bind( 'open', this.overlay.show );
  27                         this.bind( 'close', this.overlay.hide );
  28
  29                         $('#wpbody').on( 'click', '.load-customize', function( event ) {
  30                                 event.preventDefault();
  31
  32                                 // Load the theme.
  33                                 Loader.open( $(this).attr('href') );
  34                         });
  35
  36                         // Add navigation listeners.
  37                         if ( $.support.history )
  38                                 this.window.on( 'popstate', Loader.popstate );
  39
  40                         if ( $.support.hashchange ) {
  41                                 this.window.on( 'hashchange', Loader.hashchange );
  42                                 this.window.triggerHandler( 'hashchange' );
  43                         }
  44                 },
  45
  46                 popstate: function( e ) {
  47                         var state = e.originalEvent.state;
  48                         if ( state && state.customize )
  49                                 Loader.open( state.customize );
  50                         else if ( Loader.active )
  51                                 Loader.close();
  52                 },
  53
  54                 hashchange: function( e ) {
  55                         var hash = window.location.toString().split('#')[1];
  56
  57                         if ( hash && 0 === hash.indexOf( 'wp_customize=on' ) )
  58                                 Loader.open( Loader.settings.url + '?' + hash );
  59
  60                         if ( ! hash && ! $.support.history )
  61                                 Loader.close();
  62                 },
  63
  64                 open: function( src ) {
  65                         var hash;
  66
  67                         if ( this.active )
  68                                 return;
  69
  70                         // Load the full page on mobile devices.
  71                         if ( Loader.settings.browser.mobile )
  72                                 return window.location = src;
  73
  74                         this.active = true;
  75                         this.body.addClass('customize-loading');
  76
  77                         this.iframe = $( '<iframe />', { src: src }).appendTo( this.element );
  78                         this.iframe.one( 'load', this.loaded );
  79
  80                         // Create a postMessage connection with the iframe.
  81                         this.messenger = new api.Messenger({
  82                                 url: src,
  83                                 channel: 'loader',
  84                                 targetWindow: this.iframe[0].contentWindow
  85                         });
  86
  87                         // Wait for the connection from the iframe before sending any postMessage events.
  88                         this.messenger.bind( 'ready', function() {
  89                                 Loader.messenger.send( 'back' );
  90                         });
  91
  92                         this.messenger.bind( 'close', function() {
  93                                 if ( $.support.history )
  94                                         history.back();
  95                                 else if ( $.support.hashchange )
  96                                         window.location.hash = '';
  97                                 else
  98                                         Loader.close();
  99                         });
 100
 101                         this.messenger.bind( 'activated', function( location ) {
 102                                 if ( location )
 103                                         window.location = location;
 104                         });
 105
 106                         hash = src.split('?')[1];
 107
 108                         // Ensure we don't call pushState if the user hit the forward button.
 109                         if ( $.support.history && window.location.href !== src )
 110                                 history.pushState( { customize: src }, '', src );
 111                         else if ( ! $.support.history && $.support.hashchange && hash )
 112                                 window.location.hash = 'wp_customize=on&' + hash;
 113
 114                         this.trigger( 'open' );
 115                 },
 116
 117                 opened: function() {
 118                         Loader.body.addClass( 'customize-active full-overlay-active' );
 119                 },
 120
 121                 close: function() {
 122                         if ( ! this.active )
 123                                 return;
 124                         this.active = false;
 125
 126                         this.trigger( 'close' );
 127                 },
 128
 129                 closed: function() {
 130                         Loader.iframe.remove();
 131                         Loader.messenger.destroy();
 132                         Loader.iframe    = null;
 133                         Loader.messenger = null;
 134                         Loader.body.removeClass( 'customize-active full-overlay-active' ).removeClass( 'customize-loading' );
 135                 },
 136
 137                 loaded: function() {
 138                         Loader.body.removeClass('customize-loading');
 139                 },
 140
 141                 overlay: {
 142                         show: function() {
 143                                 this.element.fadeIn( 200, Loader.opened );
 144                         },
 145
 146                         hide: function() {
 147                                 this.element.fadeOut( 200, Loader.closed );
 148                         }
 149                 }
 150         });
 151
 152         $( function() {
 153                 Loader.settings = _wpCustomizeLoaderSettings;
 154                 Loader.initialize();
 155         });
 156
 157         // Expose the API to the world.
 158         api.Loader = Loader;
 159 })( wp, jQuery );