From 8f323ecf9aa4419e97a8a033581c6ae7c9e064c8 Mon Sep 17 00:00:00 2001
From: "Dominik Schilling (ocean90)" <ocean90@git.wordpress.org>
Date: Tue, 16 Dec 2014 11:52:38 +0000
Subject: [PATCH] Customizer: Export Preview instance to
 `wp.customize.preview`.

see #30409, #30726.

git-svn-id: https://develop.svn.wordpress.org/trunk@30891 602fd350-edb4-49c9-b593-d223f7449a82
---
 src/wp-includes/js/customize-preview.js | 26 +++++++++++++------------
 1 file changed, 14 insertions(+), 12 deletions(-)

diff --git a/src/wp-includes/js/customize-preview.js b/src/wp-includes/js/customize-preview.js
index ea9b4b364e..82f7bb862d 100644
--- a/src/wp-includes/js/customize-preview.js
+++ b/src/wp-includes/js/customize-preview.js
@@ -67,14 +67,14 @@
 		if ( ! api.settings )
 			return;
 
-		var preview, bg;
+		var bg;
 
-		preview = new api.Preview({
+		api.preview = new api.Preview({
 			url: window.location.href,
 			channel: api.settings.channel
 		});
 
-		preview.bind( 'settings', function( values ) {
+		api.preview.bind( 'settings', function( values ) {
 			$.each( values, function( id, value ) {
 				if ( api.has( id ) )
 					api( id ).set( value );
@@ -83,9 +83,9 @@
 			});
 		});
 
-		preview.trigger( 'settings', api.settings.values );
+		api.preview.trigger( 'settings', api.settings.values );
 
-		preview.bind( 'setting', function( args ) {
+		api.preview.bind( 'setting', function( args ) {
 			var value;
 
 			args = args.slice();
@@ -94,22 +94,22 @@
 				value.set.apply( value, args );
 		});
 
-		preview.bind( 'sync', function( events ) {
+		api.preview.bind( 'sync', function( events ) {
 			$.each( events, function( event, args ) {
-				preview.trigger( event, args );
+				api.preview.trigger( event, args );
 			});
-			preview.send( 'synced' );
+			api.preview.send( 'synced' );
 		});
 
-		preview.bind( 'active', function() {
+		api.preview.bind( 'active', function() {
 			if ( api.settings.nonce ) {
-				preview.send( 'nonce', api.settings.nonce );
+				api.preview.send( 'nonce', api.settings.nonce );
 			}
 
-			preview.send( 'documentTitle', document.title );
+			api.preview.send( 'documentTitle', document.title );
 		});
 
-		preview.send( 'ready', {
+		api.preview.send( 'ready', {
 			activePanels: api.settings.activePanels,
 			activeSections: api.settings.activeSections,
 			activeControls: api.settings.activeControls
@@ -154,6 +154,8 @@
 				this.bind( update );
 			});
 		});
+
+		api.trigger( 'preview-ready' );
 	});
 
 })( wp, jQuery );