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

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if ( typeof wp === 'undefined' )
var wp = {};
(function( exports, $ ){
var api = wp.customize,
Loader;
Loader = {
supports: {
history: !! ( window.history && history.pushState ),
hashchange: ('onhashchange' in window) && (document.documentMode === undefined || document.documentMode > 7)
},
initialize: function() {
this.body = $( document.body ).addClass('customize-support');
this.window = $( window );
this.element = $( '<div id="customize-container" class="wp-full-overlay" />' ).appendTo( this.body );
$('#wpbody').on( 'click', '.load-customize', function( event ) {
event.preventDefault();
// Load the theme.
Loader.open( $(this).attr('href') );
});
// Add navigation listeners.
if ( this.supports.history )
this.window.on( 'popstate', Loader.popstate );
if ( this.supports.hashchange )
this.window.on( 'hashchange', Loader.hashchange );
},
popstate: function( e ) {
var state = e.originalEvent.state;
if ( state && state.customize )
Loader.open( state.customize );
else if ( Loader.active )
Loader.close();
},
hashchange: function( e ) {
var hash = window.location.toString().split('#')[1];
if ( hash && 0 === hash.indexOf( 'customize=on' ) )
Loader.open( wpCustomizeLoaderL10n.url + '?' + hash );
if ( ! hash && ! Loader.supports.history )
Loader.close();
},
open: function( src ) {
if ( this.active )
return;
this.active = true;
this.iframe = $( '<iframe />', { src: src }).appendTo( this.element );
// Create a postMessage connection with the iframe.
this.messenger = new api.Messenger( src, this.iframe[0].contentWindow );
// Wait for the connection from the iframe before sending any postMessage events.
this.messenger.bind( 'ready', function() {
Loader.messenger.send( 'back', wpCustomizeLoaderL10n.back );
});
this.messenger.bind( 'close', function() {
if ( Loader.supports.history )
history.back();
else if ( Loader.supports.hashchange )
window.location.hash = '';
else
Loader.close();
});
this.element.fadeIn( 200, function() {
var hash = src.split('?')[1];
Loader.body.addClass( 'customize-active full-overlay-active' );
// Ensure we don't call pushState if the user hit the forward button.
if ( Loader.supports.history && window.location.href !== src )
history.pushState( { customize: src }, '', src );
else if ( ! Loader.supports.history && Loader.supports.hashchange && hash )
window.location.hash = hash;
});
},
close: function() {
if ( ! this.active )
return;
this.active = false;
this.element.fadeOut( 200, function() {
Loader.iframe.remove();
Loader.messenger.destroy();
Loader.iframe = null;
Loader.messenger = null;
Loader.body.removeClass( 'customize-active full-overlay-active' );
});
}
};
$( function() {
if ( window.postMessage )
Loader.initialize();
});
// Expose the API to the world.
api.Loader = Loader;
})( wp, jQuery );