Customizer: Add loading indicators for the Customizer preview.
props Fab1en, westonruter. fixes #31196. git-svn-id: https://develop.svn.wordpress.org/trunk@31697 602fd350-edb4-49c9-b593-d223f7449a82
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@ -1352,6 +1352,16 @@ body.full-overlay-active {
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height: 100%;
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}
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#customize-preview.wp-full-overlay-main {
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background: url(../images/spinner.gif) no-repeat center center;
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-webkit-background-size: 20px 20px;
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background-size: 20px 20px;
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}
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#customize-preview.wp-full-overlay-main.iframe-ready {
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background: none;
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}
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.wp-full-overlay-sidebar .wp-full-overlay-header {
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position: absolute;
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left: 0;
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@ -1710,6 +1720,7 @@ body.full-overlay-active {
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background-size: 15px 123px;
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}
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#customize-preview.wp-full-overlay-main,
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.customize-loading #customize-container,
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.theme-install-overlay .wp-full-overlay-main {
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background-image: url(../images/spinner-2x.gif);
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@ -1914,6 +1914,9 @@
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this.bind( 'ready', this._ready );
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this.bind( 'ready', function ( data ) {
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this.container.addClass( 'iframe-ready' );
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if ( ! data ) {
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return;
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}
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@ -2217,6 +2220,9 @@
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refresh: function() {
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var self = this;
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// Display loading indicator
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this.send( 'loading-initiated' );
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this.abort();
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this.loading = new api.PreviewFrame({
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@ -2249,8 +2255,10 @@
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});
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this.loading.fail( function( reason, location ) {
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if ( 'redirect' === reason && location )
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self.send( 'loading-failed' );
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if ( 'redirect' === reason && location ) {
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self.previewUrl( location );
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}
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if ( 'logged out' === reason ) {
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if ( self.preview ) {
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@ -2261,8 +2269,9 @@
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self.login().done( self.refresh );
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}
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if ( 'cheatin' === reason )
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if ( 'cheatin' === reason ) {
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self.cheatin();
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}
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});
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},
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@ -501,6 +501,7 @@ final class WP_Customize_Manager {
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add_action( 'wp', array( $this, 'customize_preview_override_404_status' ) );
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add_action( 'wp_head', array( $this, 'customize_preview_base' ) );
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add_action( 'wp_head', array( $this, 'customize_preview_html5' ) );
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add_action( 'wp_head', array( $this, 'customize_preview_loading_style' ) );
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add_action( 'wp_footer', array( $this, 'customize_preview_settings' ), 20 );
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add_action( 'shutdown', array( $this, 'customize_preview_signature' ), 1000 );
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add_filter( 'wp_die_handler', array( $this, 'remove_preview_signature' ) );
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@ -543,7 +544,7 @@ final class WP_Customize_Manager {
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}
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/**
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* Print a workaround to handle HTML5 tags in IE < 9
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* Print a workaround to handle HTML5 tags in IE < 9.
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*
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* @since 3.4.0
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*/
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@ -560,6 +561,25 @@ final class WP_Customize_Manager {
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<![endif]--><?php
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}
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/**
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* Print CSS for loading indicators for the Customizer preview.
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*
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* @since 4.2.0
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*/
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public function customize_preview_loading_style() {
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?><style>
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body.wp-customizer-unloading {
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opacity: 0.25;
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cursor: progress !important;
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-webkit-transition: opacity 0.5s;
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transition: opacity 0.5s;
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}
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body.wp-customizer-unloading * {
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pointer-events: none !important;
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}
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</style><?php
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}
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/**
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* Print JavaScript settings for preview frame.
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*
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@ -572,6 +592,9 @@ final class WP_Customize_Manager {
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'activePanels' => array(),
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'activeSections' => array(),
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'activeControls' => array(),
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'l10n' => array(
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'loading' => __( 'Loading ...' ),
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),
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);
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if ( 2 == $this->nonce_tick ) {
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@ -115,6 +115,16 @@
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activeControls: api.settings.activeControls
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} );
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// Display a loading indicator when preview is reloading, and remove on failure.
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api.preview.bind( 'loading-initiated', function () {
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$( 'body' ).addClass( 'wp-customizer-unloading' );
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$( 'html' ).prop( 'title', api.settings.l10n.loading );
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});
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api.preview.bind( 'loading-failed', function () {
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$( 'body' ).removeClass( 'wp-customizer-unloading' );
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$( 'html' ).prop( 'title', '' );
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});
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/* Custom Backgrounds */
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bg = $.map(['color', 'image', 'position_x', 'repeat', 'attachment'], function( prop ) {
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return 'background_' + prop;
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