Customize: Implement customized state persistence with changesets.

Includes infrastructure developed in the Customize Snapshots feature plugin.

See https://make.wordpress.org/core/2016/10/12/customize-changesets-technical-design-decisions/

Props westonruter, valendesigns, utkarshpatel, stubgo, lgedeon, ocean90, ryankienstra, mihai2u, dlh, aaroncampbell, jonathanbardo, jorbin.
See #28721.
See #31089.
Fixes #30937.
Fixes #31517.
Fixes #30028.
Fixes #23225.
Fixes #34142.
Fixes #36485.


git-svn-id: https://develop.svn.wordpress.org/trunk@38810 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Weston Ruter
2016-10-18 20:04:36 +00:00
parent 2ba32a2d48
commit 83b059aa19
32 changed files with 4186 additions and 539 deletions

View File

@@ -2066,9 +2066,9 @@ function check_theme_switched() {
* Includes and instantiates the WP_Customize_Manager class.
*
* Loads the Customizer at plugins_loaded when accessing the customize.php admin
* page or when any request includes a wp_customize=on param, either as a GET
* query var or as POST data. This param is a signal for whether to bootstrap
* the Customizer when WordPress is loading, especially in the Customizer preview
* page or when any request includes a wp_customize=on param or a customize_changeset
* param (a UUID). This param is a signal for whether to bootstrap the Customizer when
* WordPress is loading, especially in the Customizer preview
* or when making Customizer Ajax requests for widgets or menus.
*
* @since 3.4.0
@@ -2076,14 +2076,140 @@ function check_theme_switched() {
* @global WP_Customize_Manager $wp_customize
*/
function _wp_customize_include() {
if ( ! ( ( isset( $_REQUEST['wp_customize'] ) && 'on' == $_REQUEST['wp_customize'] )
|| ( is_admin() && 'customize.php' == basename( $_SERVER['PHP_SELF'] ) )
) ) {
$is_customize_admin_page = ( is_admin() && 'customize.php' == basename( $_SERVER['PHP_SELF'] ) );
$should_include = (
$is_customize_admin_page
||
( isset( $_REQUEST['wp_customize'] ) && 'on' == $_REQUEST['wp_customize'] )
||
( ! empty( $_GET['customize_changeset_uuid'] ) || ! empty( $_POST['customize_changeset_uuid'] ) )
);
if ( ! $should_include ) {
return;
}
require_once ABSPATH . WPINC . '/class-wp-customize-manager.php';
$GLOBALS['wp_customize'] = new WP_Customize_Manager();
/*
* Note that wp_unslash() is not being used on the input vars because it is
* called before wp_magic_quotes() gets called. Besides this fact, none of
* the values should contain any characters needing slashes anyway.
*/
$keys = array( 'changeset_uuid', 'customize_changeset_uuid', 'customize_theme', 'theme', 'customize_messenger_channel' );
$input_vars = array_merge(
wp_array_slice_assoc( $_GET, $keys ),
wp_array_slice_assoc( $_POST, $keys )
);
$theme = null;
$changeset_uuid = null;
$messenger_channel = null;
if ( $is_customize_admin_page && isset( $input_vars['changeset_uuid'] ) ) {
$changeset_uuid = sanitize_key( $input_vars['changeset_uuid'] );
} elseif ( ! empty( $input_vars['customize_changeset_uuid'] ) ) {
$changeset_uuid = sanitize_key( $input_vars['customize_changeset_uuid'] );
}
// Note that theme will be sanitized via WP_Theme.
if ( $is_customize_admin_page && isset( $input_vars['theme'] ) ) {
$theme = $input_vars['theme'];
} elseif ( isset( $input_vars['customize_theme'] ) ) {
$theme = $input_vars['customize_theme'];
}
if ( isset( $input_vars['customize_messenger_channel'] ) ) {
$messenger_channel = sanitize_key( $input_vars['customize_messenger_channel'] );
}
require_once ABSPATH . WPINC . '/class-wp-customize-manager.php';
$GLOBALS['wp_customize'] = new WP_Customize_Manager( compact( 'changeset_uuid', 'theme', 'messenger_channel' ) );
}
/**
* Publish a snapshot's changes.
*
* @param string $new_status New post status.
* @param string $old_status Old post status.
* @param WP_Post $changeset_post Changeset post object.
*/
function _wp_customize_publish_changeset( $new_status, $old_status, $changeset_post ) {
global $wp_customize;
$is_publishing_changeset = (
'customize_changeset' === $changeset_post->post_type
&&
'publish' === $new_status
&&
'publish' !== $old_status
);
if ( ! $is_publishing_changeset ) {
return;
}
if ( empty( $wp_customize ) ) {
require_once ABSPATH . WPINC . '/class-wp-customize-manager.php';
$wp_customize = new WP_Customize_Manager( $changeset_post->post_name );
}
if ( ! did_action( 'customize_register' ) ) {
/*
* When running from CLI or Cron, the customize_register action will need
* to be triggered in order for core, themes, and plugins to register their
* settings. Normally core will add_action( 'customize_register' ) at
* priority 10 to register the core settings, and if any themes/plugins
* also add_action( 'customize_register' ) at the same priority, they
* will have a $wp_customize with those settings registered since they
* call add_action() afterward, normally. However, when manually doing
* the customize_register action after the setup_theme, then the order
* will be reversed for two actions added at priority 10, resulting in
* the core settings no longer being available as expected to themes/plugins.
* So the following manually calls the method that registers the core
* settings up front before doing the action.
*/
remove_action( 'customize_register', array( $wp_customize, 'register_controls' ) );
$wp_customize->register_controls();
/** This filter is documented in /wp-includes/class-wp-customize-manager.php */
do_action( 'customize_register', $wp_customize );
}
$wp_customize->_publish_changeset_values( $changeset_post->ID ) ;
/*
* Trash the changeset post if revisions are not enabled. Unpublished
* changesets by default get garbage collected due to the auto-draft status.
* When a changeset post is published, however, it would no longer get cleaned
* out. Ths is a problem when the changeset posts are never displayed anywhere,
* since they would just be endlessly piling up. So here we use the revisions
* feature to indicate whether or not a published changeset should get trashed
* and thus garbage collected.
*/
if ( ! wp_revisions_enabled( $changeset_post ) ) {
wp_trash_post( $changeset_post->ID );
}
}
/**
* Filters changeset post data upon insert to ensure post_name is intact.
*
* This is needed to prevent the post_name from being dropped when the post is
* transitioned into pending status by a contributor.
*
* @since 4.7.0
* @see wp_insert_post()
*
* @param array $post_data An array of slashed post data.
* @param array $supplied_post_data An array of sanitized, but otherwise unmodified post data.
* @returns array Filtered data.
*/
function _wp_customize_changeset_filter_insert_post_data( $post_data, $supplied_post_data ) {
if ( isset( $post_data['post_type'] ) && 'customize_changeset' === $post_data['post_type'] ) {
// Prevent post_name from being dropped, such as when contributor saves a changeset post as pending.
if ( empty( $post_data['post_name'] ) && ! empty( $supplied_post_data['post_name'] ) ) {
$post_data['post_name'] = $supplied_post_data['post_name'];
}
}
return $post_data;
}
/**