Theme Customizer: Migrate to an ajax-based solution for refreshing the preview and saving. see #20507, #19910.
* Use ajax-based saving, add saving indicator. * Use ajax-based refreshing instead of form targets. * Instead of using hidden inputs with prefixed names to track the canonical data, use the values stored in wp.customize. Encode the values as JSON before sending to avoid bugs with ids that contain square brackets (PHP mangles POST values with nested brackets). * Use wp.customize.Previewer solely for the purpose of previewing; move the postMessage connection with the parent frame and other unrelated code snippets into the 'ready' handler. git-svn-id: http://svn.automattic.com/wordpress/trunk@20645 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
koopersmith
parent
17ee4064b1
commit
2f2cb0926f
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@ -21,9 +21,6 @@ class WP_Customize_Setting {
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protected $id_data = array();
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private $_post_value; // Cached, sanitized $_POST value.
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// Prefix for $_POST values to prevent naming conflicts.
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const name_prefix = 'customize_';
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/**
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* Constructor.
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*
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@ -121,16 +118,8 @@ class WP_Customize_Setting {
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if ( isset( $this->_post_value ) )
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return $this->_post_value;
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$base = self::name_prefix . $this->id_data[ 'base' ];
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$result = $this->manager->post_value( $this );
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if ( ! isset( $_POST[ $base ] ) )
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return $default;
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$result = $this->multidimensional_get( $_POST[ $base ], $this->id_data[ 'keys' ] );
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if ( ! isset( $result ) )
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return $default;
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$result = $this->sanitize( $result );
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if ( isset( $result ) )
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return $this->_post_value = $result;
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else
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@ -17,6 +17,10 @@ final class WP_Customize {
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protected $sections = array();
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protected $controls = array();
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protected $customized;
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private $_post_values;
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/**
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* Constructor.
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*
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@ -31,6 +35,8 @@ final class WP_Customize {
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add_action( 'admin_init', array( $this, 'admin_init' ) );
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add_action( 'wp_loaded', array( $this, 'wp_loaded' ) );
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add_action( 'wp_ajax_customize_save', array( $this, 'save' ) );
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add_action( 'customize_register', array( $this, 'register_controls' ) );
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add_action( 'customize_controls_init', array( $this, 'prepare_controls' ) );
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add_action( 'customize_controls_enqueue_scripts', array( $this, 'enqueue_control_scripts' ) );
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@ -148,6 +154,24 @@ final class WP_Customize {
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$this->customize_preview_init();
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}
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/**
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* Decode the $_POST attribute used to override the WP_Customize_Setting values.
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*
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* @since 3.4.0
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*/
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public function post_value( $setting ) {
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if ( ! isset( $this->_post_values ) ) {
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if ( isset( $_POST['customized'] ) )
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$this->_post_values = json_decode( stripslashes( $_POST['customized'] ), true );
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else
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$this->_post_values = false;
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}
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if ( isset( $this->_post_values[ $setting->id ] ) )
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return $setting->sanitize( $this->_post_values[ $setting->id ] );
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}
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/**
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* Print javascript settings.
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*
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@ -267,9 +291,6 @@ final class WP_Customize {
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* @since 3.4.0
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*/
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public function admin_init() {
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if ( isset( $_REQUEST['save_customize_controls'] ) )
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$this->save();
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if ( ( defined( 'DOING_AJAX' ) && DOING_AJAX ) )
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return;
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@ -297,14 +318,14 @@ final class WP_Customize {
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*/
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public function save() {
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if ( ! $this->is_preview() )
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return;
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die;
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check_admin_referer( 'customize_controls' );
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check_ajax_referer( 'customize_controls', 'nonce' );
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// Do we have to switch themes?
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if ( $this->get_stylesheet() != $this->original_stylesheet ) {
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if ( ! current_user_can( 'switch_themes' ) )
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return;
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die;
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// Temporarily stop previewing the theme to allow switch_themes()
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// to operate properly.
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@ -320,6 +341,8 @@ final class WP_Customize {
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}
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add_action( 'admin_notices', array( $this, '_save_feedback' ) );
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die;
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}
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/**
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@ -128,6 +128,16 @@ body {
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margin: 0;
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}
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#customize-footer-actions img {
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display: none;
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position: absolute;
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top: 18px;
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margin-left: 4px;
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}
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.saving #customize-footer-actions img {
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display: inline;
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}
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.customize-control {
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float: left;
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clear: both;
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@ -41,10 +41,8 @@ do_action( 'customize_controls_print_scripts' );
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?>
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</head>
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<body class="wp-full-overlay">
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<form id="customize-controls" method="post" class="wrap wp-full-overlay-sidebar" target="_parent" action="<?php echo esc_url( add_query_arg( 'save_customize_controls', '1', admin_url( 'themes.php' ) ) ); ?>">
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<form id="customize-controls" class="wrap wp-full-overlay-sidebar">
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<?php wp_nonce_field( 'customize_controls' ); ?>
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<input type="hidden" name="customize" value="on" />
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<input type="hidden" name="theme" value="<?php echo esc_attr( $this->get_stylesheet() ); ?>" />
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<div id="customize-header-actions" class="customize-section wp-full-overlay-header">
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<a class="back" href="<?php echo esc_url( admin_url( 'themes.php' ) ); ?>">
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<?php printf( __( '← Return to %s' ), __('Manage Themes') ); ?>
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@ -79,15 +77,15 @@ do_action( 'customize_controls_print_scripts' );
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$save_text = $this->get_stylesheet() == $this->original_stylesheet ? __('Save') : __('Save and Activate');
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submit_button( $save_text, 'primary', 'save', false );
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?>
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<img src="<?php echo esc_url( admin_url( 'images/wpspin_light.gif' ) ); ?>" />
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<a href="#" class="collapse-sidebar button-secondary" title="<?php esc_attr_e('Collapse Sidebar'); ?>">
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<span class="collapse-sidebar-label"><?php _e('Collapse'); ?></span>
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<span class="collapse-sidebar-arrow"></span>
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</a>
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</div>
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</form>
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<div id="customize-preview" class="wp-full-overlay-main">
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<iframe name="customize-target"></iframe>
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</div>
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<div id="customize-preview" class="wp-full-overlay-main"></div>
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<?php
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do_action( 'customize_controls_print_footer_scripts' );
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@ -95,11 +93,12 @@ do_action( 'customize_controls_print_scripts' );
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// Check current scheme and load the preview with the same scheme
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$scheme = is_ssl() ? 'https' : 'http';
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$settings = array(
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'theme' => $this->get_stylesheet(),
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'preview' => esc_url( home_url( '/', $scheme ) ),
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'settings' => array(),
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'controls' => array(),
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'prefix' => WP_Customize_Setting::name_prefix,
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'parent' => esc_url( admin_url() ),
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'ajax' => esc_url( admin_url( 'admin-ajax.php', 'relative' ) ),
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);
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foreach ( $this->settings as $id => $setting ) {
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@ -265,6 +265,18 @@ if ( typeof wp === 'undefined' )
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return this._value[ id ];
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},
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get: function() {
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var result = {};
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if ( arguments.length )
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return this.pass( 'get', arguments );
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$.each( this._value, function( key, obj ) {
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result[ key ] = obj.get();
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} );
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return result;
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},
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set: function( id ) {
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if ( this.has( id ) )
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return this.pass( 'set', arguments );
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@ -326,7 +338,7 @@ if ( typeof wp === 'undefined' )
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}
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});
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$.each( [ 'get', 'bind', 'unbind', 'link', 'unlink', 'sync', 'unsync', 'setter', 'resetSetter' ], function( i, method ) {
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$.each( [ 'bind', 'unbind', 'link', 'unlink', 'sync', 'unsync', 'setter', 'resetSetter' ], function( i, method ) {
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api.Values.prototype[ method ] = function() {
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return this.pass( method, arguments );
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};
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@ -15,16 +15,6 @@
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this.id = id;
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this.transport = this.transport || 'refresh';
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element = $( '<input />', {
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type: 'hidden',
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value: this.get(),
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name: api.settings.prefix + id
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});
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element.appendTo( this.previewer.form );
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this.element = new api.Element( element );
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this.sync( this.element );
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this.bind( this.preview );
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},
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preview: function() {
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@ -271,9 +261,8 @@
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/**
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* Requires params:
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* - iframe - a selector or jQuery element
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* - form - a selector or jQuery element
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* - url - the URL of preview frame
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* - container - a selector or jQuery element
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* - url - the URL of preview frame
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*/
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initialize: function( params, options ) {
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var self = this;
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@ -282,8 +271,6 @@
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this.loaded = $.proxy( this.loaded, this );
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this.loaderUuid = 0;
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/*
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* Wrap this.refresh to prevent it from hammering the servers:
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*
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@ -320,82 +307,51 @@
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};
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})( this );
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this.iframe = api.ensure( params.iframe );
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this.form = api.ensure( params.form );
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this.name = this.iframe.prop('name');
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this.container = api.ensure( params.container );
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this.container = this.iframe.parent();
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api.Messenger.prototype.initialize.call( this, params.url, this.iframe[0].contentWindow );
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this._formOriginalProps = {
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target: this.form.prop('target'),
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action: this.form.prop('action')
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};
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api.Messenger.prototype.initialize.call( this, params.url );
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this.bind( 'url', function( url ) {
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// Bail if we're navigating to the current url, to a different origin, or wp-admin.
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if ( this.url() == url || 0 !== url.indexOf( this.origin() + '/' ) || -1 !== url.indexOf( 'wp-admin' ) )
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if ( this.url() == url || 0 !== url.indexOf( this.origin() + '/' ) || -1 !== url.indexOf( 'wp-admin' ) )
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return;
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this.url( url );
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this.refresh();
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});
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this.refresh();
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// Prevent the form from saving when enter is pressed.
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this.form.on( 'keydown', function( e ) {
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if ( 13 === e.which ) // Enter
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e.preventDefault();
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});
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// Create a potential postMessage connection with the parent frame.
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this.parent = new api.Messenger( api.settings.parent );
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// If we receive a 'back' event, we're inside an iframe.
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// Send any clicks to the 'Return' link to the parent page.
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this.parent.bind( 'back', function( text ) {
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self.form.find('.back').text( text ).click( function( event ) {
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event.preventDefault();
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self.parent.send( 'close' );
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});
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});
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// Initialize the connection with the parent frame.
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this.parent.send( 'ready' );
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},
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loader: function() {
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if ( this.loading )
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return this.loading;
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this.loading = $('<iframe />', {
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name: this.name + '-loading-' + this.loaderUuid++
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}).appendTo( this.container );
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this.loading = $('<iframe />').appendTo( this.container );
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return this.loading;
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},
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loaded: function() {
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this.iframe.remove();
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if ( this.iframe )
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this.iframe.remove();
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this.iframe = this.loading;
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delete this.loading;
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this.iframe.prop( 'name', this.name );
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this.targetWindow( this.iframe[0].contentWindow );
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},
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query: function() {},
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refresh: function() {
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this.loader().one( 'load', this.loaded );
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var self = this;
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this.submit({
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target: this.loader().prop('name'),
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action: this.url()
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if ( this.request )
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this.request.abort();
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this.request = $.post( this.url(), this.query() || {}, function( response ) {
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var iframe = self.loader()[0].contentWindow;
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self.loader().one( 'load', self.loaded );
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iframe.document.open();
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iframe.document.write( response );
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iframe.document.close();
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});
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},
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submit: function( props ) {
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if ( props )
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this.form.prop( props );
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this.form.submit();
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if ( props )
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this.form.prop( this._formOriginalProps );
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}
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});
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@ -415,11 +371,42 @@
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// Initialize Previewer
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var body = $( document.body ),
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previewer = new api.Previewer({
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iframe: '#customize-preview iframe',
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form: '#customize-controls',
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url: api.settings.preview
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});
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query, previewer, parent;
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// Prevent the form from saving when enter is pressed.
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$('#customize-controls').on( 'keydown', function( e ) {
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if ( 13 === e.which ) // Enter
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e.preventDefault();
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});
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previewer = new api.Previewer({
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container: '#customize-preview',
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form: '#customize-controls',
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url: api.settings.preview
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}, {
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query: function() {
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return {
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customize: 'on',
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theme: api.settings.theme,
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customized: JSON.stringify( api.get() )
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};
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},
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nonce: $('#_wpnonce').val(),
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save: function() {
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var query = $.extend( this.query(), {
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action: 'customize_save',
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nonce: this.nonce
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}),
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request = $.post( api.settings.ajax, query );
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body.addClass('saving');
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request.always( function() {
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body.removeClass('saving');
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});
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}
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});
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$.each( api.settings.settings, function( id, data ) {
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api.set( id, id, data.value, {
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@ -438,6 +425,9 @@
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} ) );
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});
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// Load the preview frame.
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previewer.refresh();
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// Temporary accordion code.
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$('.customize-section-title').click( function() {
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$( this ).parents('.customize-section').toggleClass( 'open' );
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@ -446,7 +436,7 @@
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// Button bindings.
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$('#save').click( function( event ) {
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previewer.submit();
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previewer.save();
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event.preventDefault();
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});
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@ -455,6 +445,21 @@
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event.preventDefault();
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});
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// Create a potential postMessage connection with the parent frame.
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parent = new api.Messenger( api.settings.parent );
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// If we receive a 'back' event, we're inside an iframe.
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// Send any clicks to the 'Return' link to the parent page.
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parent.bind( 'back', function( text ) {
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$('.back').text( text ).click( function( event ) {
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event.preventDefault();
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parent.send( 'close' );
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});
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});
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// Initialize the connection with the parent frame.
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parent.send( 'ready' );
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// Control visibility for default controls
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$.each({
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'background_image': {
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