Customize: Fix image cropping when doing live preview of theme switches.

Ensure that the Customizer gets bootstrapped with the pre-activated `theme` supplied in the `custom-header-crop` admin ajax requests.

Props faishal, rittesh.patel.
Fixes #32783.

Built from https://develop.svn.wordpress.org/trunk@36866


git-svn-id: http://core.svn.wordpress.org/trunk@36833 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/js/customize-controls.js

@@ -2346,6 +2346,10 @@
 				api.HeaderTool.UploadsList,
 				api.HeaderTool.DefaultsList
 			]);
+
+			// Ensure custom-header-crop Ajax requests bootstrap the Customizer to activate the previewed theme.
+			wp.media.controller.Cropper.prototype.defaults.doCropArgs.wp_customize = 'on';
+			wp.media.controller.Cropper.prototype.defaults.doCropArgs.theme = api.settings.theme.stylesheet;
 		},
 
 		/**

wp-includes/js/media-views.js

@@ -282,8 +282,10 @@ Cropper = wp.media.controller.State.extend({
 		toolbar:     'crop',
 		content:     'crop',
 		router:      false,
+		canSkipCrop: false,
 
-		canSkipCrop: false
+		// Default doCrop Ajax arguments to allow the Customizer (for example) to inject state.
+		doCropArgs: {}
 	},
 
 	activate: function() {
@@ -367,11 +369,15 @@ Cropper = wp.media.controller.State.extend({
 	},
 
 	doCrop: function( attachment ) {
-		return wp.ajax.post( 'custom-header-crop', {
+		return wp.ajax.post( 'custom-header-crop', _.extend(
+			{},
+			this.defaults.doCropArgs,
+			{
 				nonce: attachment.get( 'nonces' ).edit,
 				id: attachment.get( 'id' ),
 				cropDetails: attachment.get( 'cropDetails' )
-		} );
+			}
+		) );
 	}
 });
 

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.5-beta2-36865';
+$wp_version = '4.5-beta2-36866';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.