Ticket #30677: 30677.3.diff

src/wp-admin/js/customize-controls.js

@@ -3219 +3219 @@
                         topFocus.focus();
                 }, 200);
 
+                // Change the preview URL for static pages
+                $.each( [ 'page_on_front', 'page_for_posts' ], function ( i, controlId ) {
+                        api( controlId, function( control ) {
+                                control.bind( function( to ) {
+                                        if ( isNaN( to ) ) {
+                                                return false;
+                                        }
+                                        var x = parseFloat( to );
+                                        if ( (x | 0) === x && 0 < to ) {
+                                                var request = wp.ajax.post( 'customize_' + controlId, {
+                                                        nonce: window._wpCustomizeControls.getPreviewUrlNonce,
+                                                        wp_customize: 'on',
+                                                        url: api.previewer.previewUrl(),
+                                                        id: to
+                                                } );
+                                                request.done( function( data ) {
+                                                        api.previewer.previewUrl( data.url );
+                                                });
+                                        }
+                                });
+                        });
+                });
+
         });
 
 })( wp, jQuery );

src/wp-includes/class-wp-customize-manager.php

@@ -134 +134 @@
 
                 add_action( 'wp_ajax_customize_save',           array( $this, 'save' ) );
                 add_action( 'wp_ajax_customize_refresh_nonces', array( $this, 'refresh_nonces' ) );
+                add_action( 'wp_ajax_customize_page_on_front',  array( $this, 'page_on_front' ) );
+                add_action( 'wp_ajax_customize_page_for_posts', array( $this, 'page_for_posts' ) );
 
                 add_action( 'customize_register',                 array( $this, 'register_controls' ) );
                 add_action( 'customize_register',                 array( $this, 'register_dynamic_settings' ), 11 ); // allow code to create settings first
@@ -852 +854 @@
         }
 
         /**
+         * Customizer AJAX response for page_on_front.
+         *
+         * @since 4.3.0
+         */
+        public function page_on_front() {
+                $this->_send_preview_url( true );
+        }
+
+        /**
+         * Customizer AJAX response for page_for_posts.
+         *
+         * @since 4.3.0
+         */
+        public function page_for_posts() {
+                $this->_send_preview_url( false );
+        }
+        
+        /**
+         * Sends a JSON object back to the Customizer.
+         *
+         * Contains a success message with a preview URL, or an error message when it fails.
+         *
+         * @since 4.3.0
+         *
+         * @param bool $front True for the front page, false otherwise.
+         */
+        protected function _send_preview_url( $front = true ) {
+                if ( ! $this->is_preview() ) {
+                        wp_send_json_error( 'not_preview' );
+                }
+
+                if ( ! check_ajax_referer( 'get-preview-url', 'nonce', false ) ) {
+                        wp_send_json_error( 'invalid_nonce' );
+                }
+
+                $id = absint( $_POST['id'] );
+                if ( 1 > $id ) {
+                        wp_send_json_error( 'invalid_id' );
+                }
+
+                $current_url = esc_url( $_POST[ 'url' ] );
+                $preview_url = esc_url( true === $front ? home_url( '/' ) : get_permalink( $id ) );
+
+                if ( $current_url === $preview_url ) {
+                        wp_send_json_error( 'same_url' );
+                }
+
+                wp_send_json_success( array( 'url' => $preview_url ) );
+        }
+
+        /**
          * Add a customize setting.
          *
          * @since 3.4.0

src/wp-includes/script-loader.php

@@ -402 +402 @@
                 // Used for overriding the file types allowed in plupload.
                 'allowedFiles' => __( 'Allowed Files' ),
         ) );
+        did_action( 'init' ) && $scripts->localize( 'customize-controls', '_wpCustomizeControls', array(
+                'getPreviewUrlNonce' => wp_create_nonce( 'get-preview-url' ),
+        ) );
 
         $scripts->add( 'customize-widgets', "/wp-admin/js/customize-widgets$suffix.js", array( 'jquery', 'jquery-ui-sortable', 'jquery-ui-droppable', 'wp-backbone', 'customize-controls' ), false, 1 );
         $scripts->add( 'customize-preview-widgets', "/wp-includes/js/customize-preview-widgets$suffix.js", array( 'jquery', 'wp-util', 'customize-preview' ), false, 1 );