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<title>[56809] trunk/src: Administration: Remove deprecated `unload` event handlers and use `pagehide` (and `pageshow`) when appropriate.</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/56809">56809</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/56809","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>westonruter</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2023-10-09 21:29:42 +0000 (Mon, 09 Oct 2023)</dd>
</dl>
<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Administration: Remove deprecated `unload` event handlers and use `pagehide` (and `pageshow`) when appropriate.
Use `pagehide` event instead of `unload` in the following cases:
* For classic editor to release the post lock.
* In Text widget to rebuild editor after dragging widget to new location in classic widgets interface.
* To clear out the `window.name` when navigating away from a post preview.
* To suspend heartbeat, while also using `pageshow` event to resume as if it had been a focused tab in case page restored from bfcache.
Also:
* Remove obsolete mobile cleanup code in `js/_enqueues/lib/gallery.js` (introduced in <a href="https://core.trac.wordpress.org/changeset/9894">[9894]</a>). Do same for `src/js/_enqueues/wp/media/models.js` (introduced in <a href="https://core.trac.wordpress.org/changeset/22872">[22872]</a>). See <a href="https://core.trac.wordpress.org/ticket/22552">#22552</a>.
* Remove obsolete Firefox-specific workaround in `js/_enqueues/wp/mce-view.js` from <a href="https://core.trac.wordpress.org/changeset/39282">[39282]</a>. See <a href="https://core.trac.wordpress.org/ticket/38511">#38511</a>.
Fixes <a href="https://core.trac.wordpress.org/ticket/55491">#55491</a>.
Props spenserhale, westonruter, adamsilverstein, azaozz, shawfactor, peterwilsoncc, swissspidy.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcjs_enqueuesadminpostjs">trunk/src/js/_enqueues/admin/post.js</a></li>
<li><a href="#trunksrcjs_enqueueslibgalleryjs">trunk/src/js/_enqueues/lib/gallery.js</a></li>
<li><a href="#trunksrcjs_enqueueswpheartbeatjs">trunk/src/js/_enqueues/wp/heartbeat.js</a></li>
<li><a href="#trunksrcjs_enqueueswpmceviewjs">trunk/src/js/_enqueues/wp/mce-view.js</a></li>
<li><a href="#trunksrcjs_enqueueswpmediamodelsjs">trunk/src/js/_enqueues/wp/media/models.js</a></li>
<li><a href="#trunksrcjs_enqueueswpwidgetstextjs">trunk/src/js/_enqueues/wp/widgets/text.js</a></li>
<li><a href="#trunksrcwpincludesfunctionsphp">trunk/src/wp-includes/functions.php</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcjs_enqueuesadminpostjs"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/js/_enqueues/admin/post.js</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/js/_enqueues/admin/post.js 2023-10-09 17:21:30 UTC (rev 56808)
+++ trunk/src/js/_enqueues/admin/post.js 2023-10-09 21:29:42 UTC (rev 56809)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -511,7 +511,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> // See https://developer.mozilla.org/en-US/docs/Web/API/Window/beforeunload_event.
</span><span class="cx" style="display: block; padding: 0 10px"> return __( 'The changes you made will be lost if you navigate away from this page.' );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- }).on( 'unload.edit-post', function( event ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ }).on( 'pagehide.edit-post', function( event ) {
</ins><span class="cx" style="display: block; padding: 0 10px"> if ( ! releaseLock ) {
</span><span class="cx" style="display: block; padding: 0 10px"> return;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span></span></pre></div>
<a id="trunksrcjs_enqueueslibgalleryjs"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/js/_enqueues/lib/gallery.js</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/js/_enqueues/lib/gallery.js 2023-10-09 17:21:30 UTC (rev 56808)
+++ trunk/src/js/_enqueues/lib/gallery.js 2023-10-09 21:29:42 UTC (rev 56809)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -88,8 +88,6 @@
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> });
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-jQuery(window).on( 'unload', function () { window.tinymce = window.tinyMCE = window.wpgallery = null; } ); // Cleanup.
-
</del><span class="cx" style="display: block; padding: 0 10px"> /* gallery settings */
</span><span class="cx" style="display: block; padding: 0 10px"> window.tinymce = null;
</span><span class="cx" style="display: block; padding: 0 10px">
</span></span></pre></div>
<a id="trunksrcjs_enqueueswpheartbeatjs"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/js/_enqueues/wp/heartbeat.js</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/js/_enqueues/wp/heartbeat.js 2023-10-09 17:21:30 UTC (rev 56808)
+++ trunk/src/js/_enqueues/wp/heartbeat.js 2023-10-09 21:29:42 UTC (rev 56809)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -223,9 +223,9 @@
</span><span class="cx" style="display: block; padding: 0 10px"> settings.checkFocusTimer = window.setInterval( checkFocus, 10000 );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $(window).on( 'unload.wp-heartbeat', function() {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $(window).on( 'pagehide.wp-heartbeat', function() {
</ins><span class="cx" style="display: block; padding: 0 10px"> // Don't connect anymore.
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- settings.suspend = true;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ suspend();
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // Abort the last request if not completed.
</span><span class="cx" style="display: block; padding: 0 10px"> if ( settings.xhr && settings.xhr.readyState !== 4 ) {
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -233,6 +233,25 @@
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> });
</span><span class="cx" style="display: block; padding: 0 10px">
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $(window).on(
+ 'pageshow.wp-heartbeat',
+ /**
+ * Handles pageshow event, specifically when page navigation is restored from back/forward cache.
+ *
+ * @param {jQuery.Event} event
+ * @param {PageTransitionEvent} event.originalEvent
+ */
+ function ( event ) {
+ if ( event.originalEvent.persisted ) {
+ /*
+ * When page navigation is stored via bfcache (Back/Forward Cache), consider this the same as
+ * if the user had just switched to the tab since the behavior is similar.
+ */
+ focused();
+ }
+ }
+ );
+
</ins><span class="cx" style="display: block; padding: 0 10px"> // Check for user activity every 30 seconds.
</span><span class="cx" style="display: block; padding: 0 10px"> window.setInterval( checkUserActivity, 30000 );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -541,7 +560,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> settings.userActivity = time();
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // Resume if suspended.
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- settings.suspend = false;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ resume();
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> if ( ! settings.hasFocus ) {
</span><span class="cx" style="display: block; padding: 0 10px"> settings.hasFocus = true;
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -550,6 +569,20 @@
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> /**
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * Suspends connecting.
+ */
+ function suspend() {
+ settings.suspend = true;
+ }
+
+ /**
+ * Resumes connecting.
+ */
+ function resume() {
+ settings.suspend = false;
+ }
+
+ /**
</ins><span class="cx" style="display: block; padding: 0 10px"> * Runs when the user becomes active after a period of inactivity.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 3.6.0
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -593,7 +626,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> // Suspend after 10 minutes of inactivity when suspending is enabled.
</span><span class="cx" style="display: block; padding: 0 10px"> // Always suspend after 60 minutes of inactivity. This will release the post lock, etc.
</span><span class="cx" style="display: block; padding: 0 10px"> if ( ( settings.suspendEnabled && lastActive > 600000 ) || lastActive > 3600000 ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- settings.suspend = true;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ suspend();
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> if ( ! settings.userActivityEvents ) {
</span></span></pre></div>
<a id="trunksrcjs_enqueueswpmceviewjs"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/js/_enqueues/wp/mce-view.js</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/js/_enqueues/wp/mce-view.js 2023-10-09 17:21:30 UTC (rev 56808)
+++ trunk/src/js/_enqueues/wp/mce-view.js 2023-10-09 21:29:42 UTC (rev 56809)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -643,16 +643,6 @@
</span><span class="cx" style="display: block; padding: 0 10px"> }, 3000 );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- function reload() {
- if ( ! editor.isHidden() ) {
- $( node ).data( 'rendered', null );
-
- setTimeout( function() {
- wp.mce.views.render();
- } );
- }
- }
-
</del><span class="cx" style="display: block; padding: 0 10px"> function addObserver() {
</span><span class="cx" style="display: block; padding: 0 10px"> observer = new MutationObserver( _.debounce( resize, 100 ) );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -663,7 +653,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> } );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $( iframeWin ).on( 'load', resize ).on( 'unload', reload );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $( iframeWin ).on( 'load', resize );
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> MutationObserver = iframeWin.MutationObserver || iframeWin.WebKitMutationObserver || iframeWin.MozMutationObserver;
</span><span class="cx" style="display: block; padding: 0 10px">
</span></span></pre></div>
<a id="trunksrcjs_enqueueswpmediamodelsjs"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/js/_enqueues/wp/media/models.js</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/js/_enqueues/wp/media/models.js 2023-10-09 17:21:30 UTC (rev 56808)
+++ trunk/src/js/_enqueues/wp/media/models.js 2023-10-09 21:29:42 UTC (rev 56809)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -2,8 +2,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * @output wp-includes/js/media-models.js
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-var $ = jQuery,
- Attachment, Attachments, l10n, media;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+var Attachment, Attachments, l10n, media;
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> /** @namespace wp */
</span><span class="cx" style="display: block; padding: 0 10px"> window.wp = window.wp || {};
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -237,8 +236,3 @@
</span><span class="cx" style="display: block; padding: 0 10px"> props: _.extend( _.defaults( props || {}, { orderby: 'date' } ), { query: true } )
</span><span class="cx" style="display: block; padding: 0 10px"> });
</span><span class="cx" style="display: block; padding: 0 10px"> };
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-
-// Clean up. Prevents mobile browsers caching.
-$(window).on('unload', function(){
- window.wp = null;
-});
</del></span></pre></div>
<a id="trunksrcjs_enqueueswpwidgetstextjs"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/js/_enqueues/wp/widgets/text.js</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/js/_enqueues/wp/widgets/text.js 2023-10-09 17:21:30 UTC (rev 56808)
+++ trunk/src/js/_enqueues/wp/widgets/text.js 2023-10-09 21:29:42 UTC (rev 56809)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -291,7 +291,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> onInit = function() {
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // When a widget is moved in the DOM the dynamically-created TinyMCE iframe will be destroyed and has to be re-built.
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $( editor.getWin() ).on( 'unload', function() {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $( editor.getWin() ).on( 'pagehide', function() {
</ins><span class="cx" style="display: block; padding: 0 10px"> _.defer( buildEditor );
</span><span class="cx" style="display: block; padding: 0 10px"> });
</span><span class="cx" style="display: block; padding: 0 10px">
</span></span></pre></div>
<a id="trunksrcwpincludesfunctionsphp"></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/functions.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/functions.php 2023-10-09 17:21:30 UTC (rev 56808)
+++ trunk/src/wp-includes/functions.php 2023-10-09 21:29:42 UTC (rev 56809)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -7585,7 +7585,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> /**
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * Outputs a small JS snippet on preview tabs/windows to remove `window.name` on unload.
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * Outputs a small JS snippet on preview tabs/windows to remove `window.name` when a user is navigating to another page.
</ins><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * This prevents reusing the same tab for a preview when the user has navigated away.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -7614,7 +7614,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> if ( window.addEventListener ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- window.addEventListener( 'unload', function() { window.name = ''; }, false );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ window.addEventListener( 'pagehide', function() { window.name = ''; } );
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> }());
</span><span class="cx" style="display: block; padding: 0 10px"> </script>
</span></span></pre>
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