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<title>[60003] trunk/src/wp-includes: Editor: Support site preview mode for the Site Editor.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/60003">60003</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/60003","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>joemcgill</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2025-03-17 13:01:24 +0000 (Mon, 17 Mar 2025)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Editor: Support site preview mode for the Site Editor.
This allows the Site Editor to load a preview of the site as an `IFRAME_REQUEST` by checking for a `wp_site_preview` query param. By setting the `IFRAME_REQUEST` constant when loading the preview, the site's admin bar and some third party plugin overlays will not be shown in the preview.
Props wildworks, joemcgill, peterwilsoncc, presstoke, mamaduka, johnbillion, faisal03.
Fixes <a href="https://core.trac.wordpress.org/ticket/63076">#63076</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesblockeditorphp">trunk/src/wp-includes/block-editor.php</a></li>
<li><a href="#trunksrcwpincludesdefaultfiltersphp">trunk/src/wp-includes/default-filters.php</a></li>
</ul>
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<h3>Diff</h3>
<a id="trunksrcwpincludesblockeditorphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/block-editor.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/block-editor.php 2025-03-16 23:01:50 UTC (rev 60002)
+++ trunk/src/wp-includes/block-editor.php 2025-03-17 13:01:24 UTC (rev 60003)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -856,3 +856,21 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> return $theme_settings;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+/**
+ * Initialize site preview.
+ *
+ * This function sets IFRAME_REQUEST to true if the site preview parameter is set.
+ *
+ * @since 6.8.0
+ */
+function wp_initialize_site_preview_hooks() {
+ if (
+ ! defined( 'IFRAME_REQUEST' ) &&
+ isset( $_GET['wp_site_preview'] ) &&
+ 1 === (int) $_GET['wp_site_preview'] &&
+ current_user_can( 'edit_theme_options' )
+ ) {
+ define( 'IFRAME_REQUEST', true );
+ }
+}
</ins></span></pre></div>
<a id="trunksrcwpincludesdefaultfiltersphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/default-filters.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/default-filters.php 2025-03-16 23:01:50 UTC (rev 60002)
+++ trunk/src/wp-includes/default-filters.php 2025-03-17 13:01:24 UTC (rev 60003)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -551,6 +551,9 @@
</span><span class="cx" style="display: block; padding: 0 10px"> // Block Theme Previews.
</span><span class="cx" style="display: block; padding: 0 10px"> add_action( 'plugins_loaded', 'wp_initialize_theme_preview_hooks', 1 );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+// Site preview for Classic Theme.
+add_action( 'init', 'wp_initialize_site_preview_hooks', 1 );
+
</ins><span class="cx" style="display: block; padding: 0 10px"> // Calendar widget cache.
</span><span class="cx" style="display: block; padding: 0 10px"> add_action( 'save_post', 'delete_get_calendar_cache' );
</span><span class="cx" style="display: block; padding: 0 10px"> add_action( 'delete_post', 'delete_get_calendar_cache' );
</span></span></pre>
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