desktop-mode / includes / render / chromeless-bridge.php

chromeless-bridge.php in OpenStation: Desktop Windows, Dock & Virtual Desktops for WP Admin 1.1.2, at includes/render/chromeless-bridge.php

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1	<?php
2	/**
3	* OpenStation — Chromeless iframe bridge.
4	*
5	* Two cooperative pieces emitted into chromeless admin pages:
6	*
7	* - `openstation_chromeless_offset_neutralizer_script()` —
8	* runs on `admin_head @ 1` and rewrites positioned-element
9	* `top` values that match common admin-bar offsets (32px /
10	* 46px) to 0 inside chromeless iframes. Catches plugins that
11	* hardcode the admin-bar height instead of using the WP CSS
12	* custom property.
13	*
14	* - `openstation_chromeless_bridge_script()` — runs on
15	* `admin_footer` and emits the chromeless ↔ shell bridge
16	* script that handles screen-meta detection, command-palette
17	* harvesting, plugin-changed payloads, etc. The biggest
18	* hook in the original render.php (~1,950 LOC) — the bulk is
19	* the inline JS string the iframe runs.
20	*
21	* Extracted from `render.php` during the architecture-0.8.1 PHP
22	* slicing (phase 6).
23	*
24	* @package OpenStation
25	*/
26
27	defined( 'ABSPATH' ) \|\| exit;
28
29
30	/**
31	* Neutralizes hardcoded admin-bar offsets on positioned elements
32	* inside chromeless iframes.
33	*
34	* Many plugins compile their CSS with the admin-bar height baked in
35	* as a literal pixel value rather than referencing
36	* `var(--wp-admin--admin-bar--height)`. WooCommerce's
37	* `.woocommerce-layout__header` is the canonical case — it ships as
38	* `top: 32px` (or `46px` on small screens) because the SCSS source
39	* uses build-time interpolation (`#{$header-height + $adminbar-height-mobile}`).
40	* A CSS-variable rebind cannot reach these rules because the rules
41	* never read the variable.
42	*
43	* The only generic mitigation is a runtime DOM pass:
44	*
45	* 1. Walk every positioned element (`fixed \| sticky \| absolute`).
46	* 2. Compare its computed `top` against the set of values that
47	* reserve admin-bar height (defaults: `32px`, `46px`).
48	* 3. If it matches, override `top` to `0` inline with `!important`.
49	*
50	* The match is exact-pixel — we deliberately don't catch e.g.
51	* `top: 33px` (which is almost certainly intentional and unrelated
52	* to admin-bar geometry). False positives are possible but
53	* unlikely; a plugin would have to use `top: 32px` for a reason
54	* unrelated to the admin bar AND need that exact value to remain
55	* inside chromeless. We've never seen one in the wild, and if a
56	* site hits it, the filter below lets them narrow the scan.
57	*
58	* Scoped via the `os-chromeless` body class. Runs ONE
59	* full walk at DOMContentLoaded, then watches for late additions
60	* with a `MutationObserver` so React-mounted components are
61	* corrected as they appear instead of via a second full-DOM walk
62	* at `load`. The observer only inspects added nodes, not the
63	* whole document.
64	*
65	* The observer callback itself does NO style reads: it only
66	* enqueues added elements and schedules one idle flush
67	* (`requestIdleCallback`, 500 ms timeout backstop; plain
68	* `setTimeout` fallback). Every `getComputedStyle()` read forces
69	* a synchronous style recalculation, and a MutationObserver
70	* callback runs as a microtask BEFORE the next paint — so reading
71	* computed style in the callback puts a forced style flush on the
72	* exact path Gutenberg hammers hardest while the user types
73	* (block toolbar mounts, popovers, autocompleters; hundreds of
74	* descendants per batch). Deferring the walk to idle time takes
75	* the neutralizer off the typing path entirely; a late-mounted
76	* plugin header is corrected a frame or two later, which is
77	* imperceptible for elements that only just appeared.
78	*
79	* Fallback for very old browsers without `MutationObserver`:
80	* keep the second walk at `load`. The current minimum (IE 11+)
81	* already ships MO, so the fallback only fires on extreme
82	* outliers — but it's free insurance.
83	*/
84	function openstation_chromeless_offset_neutralizer_script() {
85	if ( ! openstation_is_chromeless_request() ) {
86	return;
87	}
88
89	/**
90	* Filters the set of `top` pixel values that mark a positioned
91	* element as an admin-bar offset clone.
92	*
93	* Defaults match the two admin-bar heights Core ships: `32px`
94	* for desktop, `46px` for the mobile breakpoint. Sites that
95	* customize the admin bar height (some accessibility themes
96	* raise it to 50px) can extend the list.
97	*
98	* @param string[] $values Default `[ '32px', '46px' ]`.
99	*/
100	$top_values = apply_filters(
101	'openstation_chromeless_admin_bar_top_values',
102	array( '32px', '46px' )
103	);
104
105	$config = wp_json_encode(
106	array(
107	'tops' => array_values( array_filter( array_map( 'strval', (array) $top_values ) ) ),
108	)
109	);
110	if ( false === $config ) {
111	return;
112	}
113
114	// Build the inline JS as a concatenated single-quoted string —
115	// Plugin Check disallows heredoc syntax (PluginCheck.CodeAnalysis.
116	// Heredoc.NotAllowed), so the source is uglier than the original
117	// `<<<JS … JS;` block but functionally identical. The trailing
118	// `$config` JSON is appended at the end so the whole body is a
119	// closure receiving a `{tops: [...]}` argument.
120	$js = '(function(C){';
121	$js .= 'var TOPS={};';
122	$js .= 'for(var t=0;t<C.tops.length;t++){TOPS[C.tops[t]]=1;}';
123	$js .= 'function fixOne(el){';
124	$js .= 'if(!el\|\|el.nodeType!==1)return;';
125	$js .= 'var cs;';
126	$js .= 'try{cs=getComputedStyle(el);}catch(_e){return;}';
127	$js .= "if(cs.position==='static')return;";
128	$js .= "if(TOPS[cs.top]){el.style.setProperty('top','0px','important');}";
129	$js .= '}';
130	$js .= 'function walkSubtree(root){';
131	$js .= 'if(!root)return;';
132	$js .= 'if(root.nodeType===1){fixOne(root);}';
133	$js .= "var els=root.querySelectorAll?root.querySelectorAll('*'):[];";
134	$js .= 'for(var i=0;i<els.length;i++){fixOne(els[i]);}';
135	$js .= '}';
136	// Added nodes are queued and walked in ONE idle-time flush. The
137	// observer callback must never read computed style itself — it
138	// runs before the next paint, so a style read there is a forced
139	// synchronous recalc on the editor's typing path.
140	$js .= 'var queue=[];';
141	$js .= 'var scheduled=false;';
142	$js .= 'function flush(){';
143	$js .= 'scheduled=false;';
144	$js .= 'var batch=queue;';
145	$js .= 'queue=[];';
146	$js .= 'for(var i=0;i<batch.length;i++){';
147	// Skip nodes detached between enqueue and flush (transient
148	// popovers, React unmounts) — nothing visible to correct, and
149	// getComputedStyle on a detached tree is wasted work.
150	$js .= 'if(batch[i].isConnected===false)continue;';
151	$js .= 'walkSubtree(batch[i]);';
152	$js .= '}';
153	$js .= '}';
154	$js .= 'function schedule(){';
155	$js .= 'if(scheduled)return;';
156	$js .= 'scheduled=true;';
157	$js .= 'if(window.requestIdleCallback){window.requestIdleCallback(flush,{timeout:500});}';
158	$js .= 'else{window.setTimeout(flush,200);}';
159	$js .= '}';
160	$js .= 'var started=false;';
161	$js .= 'function start(){';
162	$js .= 'if(started)return;';
163	$js .= "if(!document.body\|\|!document.body.classList.contains('os-chromeless'))return;";
164	$js .= 'started=true;';
165	$js .= 'var MO=window.MutationObserver;';
166	$js .= 'if(MO){';
167	$js .= 'var observer=new MO(function(records){';
168	$js .= 'var found=false;';
169	$js .= 'for(var r=0;r<records.length;r++){';
170	$js .= 'var rec=records[r];';
171	$js .= "if(rec.type!=='childList')continue;";
172	$js .= 'var added=rec.addedNodes;';
173	$js .= 'for(var n=0;n<added.length;n++){';
174	// Element nodes only — rich-text edits insert text nodes by the
175	// dozen, and those can never carry a positioned offset.
176	$js .= 'if(added[n].nodeType===1){queue.push(added[n]);found=true;}';
177	$js .= '}';
178	$js .= '}';
179	$js .= 'if(found){schedule();}';
180	$js .= '});';
181	$js .= 'observer.observe(document.body,{childList:true,subtree:true});';
182	$js .= '}';
183	$js .= 'walkSubtree(document.body);';
184	// Defense in depth — pre-MutationObserver browsers fall back to the
185	// original double-walk so React-mounted components added between
186	// DOMContentLoaded and load still get neutralized.
187	$js .= 'if(!MO){';
188	$js .= "window.addEventListener('load',function(){walkSubtree(document.body);},{once:true});";
189	$js .= '}';
190	$js .= '}';
191	$js .= "if(document.readyState==='loading'){";
192	$js .= "document.addEventListener('DOMContentLoaded',start,{once:true});";
193	$js .= '}else{';
194	$js .= 'start();';
195	$js .= '}';
196	$js .= '})(' . $config . ');';
197
198	wp_print_inline_script_tag( $js );
199	}
200	add_action( 'admin_head', 'openstation_chromeless_offset_neutralizer_script', 1 );
201
202	/**
203	* Short-circuit `admin.php?openstation_menu_refresh=1` requests with
204	* a tiny inline-script response that postMessages the current menu
205	* payload to the parent shell.
206	*
207	* The full chromeless bridge is hooked on `admin_footer`, which Core
208	* only fires from `admin-header.php` / `admin-footer.php`. Plain
209	* `admin.php` without `?page=` (or one of the other dispatch paths
210	* in admin.php) never includes the footer — the file just runs the
211	* `load-{$pagenow}` hook in the `else` branch and exits. The full
212	* bridge therefore never emits its payload, and the parent's
213	* `wp.os.refreshMenu()` waits out its 8-second timeout for a
214	* message that's never coming. That's the source of "deactivating a
215	* plugin leaves its dock icons behind" — the hidden probe iframe
216	* the shell spawns to harvest the post-mutation menu lands on a
217	* page that doesn't fire admin_footer.
218	*
219	* Hooking here on `admin_init @ 99` runs AFTER `wp-admin/menu.php`
220	* has loaded (which fires `admin_menu` and populates `$menu`) but
221	* BEFORE admin.php's per-page dispatch. We can emit the payload
222	* straight away and short-circuit the rest of admin.php so the probe
223	* resolves in milliseconds instead of timing out.
224	*
225	* No admin-header / admin-footer means no `#adminmenu` DOM, so the
226	* full bridge's CSS-icon harvest doesn't run here. That's an
227	* acceptable trade-off: items whose icons live in `$menu[$i][6]`
228	* (the vast majority) still ship correctly; items that rely on a
229	* CSS `::before` on `#adminmenu .menu-icon-<slug>` fall back to the
230	* default gear icon on a live refresh until the next full page load
231	* — strictly better than today's "dock doesn't update at all."
232	*/
233	function openstation_emit_menu_refresh_probe() {
234	// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- read-only payload harvest; capability-gated by chromeless gate below.
235	if ( empty( $_GET['openstation_menu_refresh'] ) ) {
236	return;
237	}
238	if ( ! openstation_is_chromeless_request() ) {
239	return;
240	}
241	// Only short-circuit the bare `admin.php` probe — for any real
242	// admin page (plugins.php, edit.php, etc.) we still want the full
243	// admin-footer-hosted bridge to fire so the icon harvest runs.
244	$pagenow = isset( $GLOBALS['pagenow'] ) ? (string) $GLOBALS['pagenow'] : '';
245	if ( 'admin.php' !== $pagenow ) {
246	return;
247	}
248
249	$payload = openstation_build_menu_payload();
250	$encoded = wp_json_encode( $payload );
251	if ( false === $encoded ) {
252	return;
253	}
254
255	nocache_headers();
256	header( 'Content-Type: text/html; charset=utf-8' );
257
258	// Mirror the full bridge's message shape so the same shell-side
259	// listener consumes both.
260	echo '<!doctype html><html><head><meta charset="utf-8"><title></title></head><body>';
261	echo '<script>';
262	echo '(function(){try{if(window.parent&&window.parent!==window){window.parent.postMessage({type:"os-plugins-changed",payload:';
263	echo $encoded; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- wp_json_encode produces JSON-safe output.
264	echo '},window.location.origin);}}catch(e){}})();';
265	echo '</script>';
266	echo '</body></html>';
267	exit;
268	}
269	add_action( 'admin_init', 'openstation_emit_menu_refresh_probe', 99 );
270
271	/**
272	* Outputs the chromeless screen-meta bridge script.
273	*
274	* Detects Screen Options / Help panels in the iframed page and relays
275	* their availability + open/closed state to the parent desktop shell
276	* via postMessage. The parent shell uses this to render matching
277	* buttons in the window title bar.
278	*/
279	function openstation_chromeless_bridge_script() {
280	if ( ! openstation_is_chromeless_request() ) {
281	return;
282	}
283
284	/**
285	* Fires after chromeless content in OpenStation.
286	*
287	* @param string $hook_suffix The current admin page hook suffix.
288	*/
289	do_action( 'openstation_chromeless_after', isset( $GLOBALS['hook_suffix'] ) ? $GLOBALS['hook_suffix'] : '' );
290
291	// Menu payload — built from the LIVE $menu / $submenu globals
292	// populated by real admin-context bootstrapping. We capture it here
293	// rather than making the parent refetch via REST because many
294	// plugins evaluate `is_admin()` at plugin-file-load time and only
295	// register their `admin_menu` hook when it returns true; in a REST
296	// context `WP_ADMIN` isn't defined at load, so those plugins never
297	// hook in and their menu entries are missing from any endpoint we
298	// could expose. Here we're INSIDE an admin request (plugins.php,
299	// plugin-install.php, update.php, themes.php) where every plugin's
300	// menu registered normally, so `$menu` carries the authoritative
301	// post-activation state.
302	//
303	// Narrowed to the set of pages whose completion commonly mutates
304	// the admin menu (activation / deactivation / install / theme
305	// switch), plus the explicit `openstation_menu_refresh=1` signal
306	// the shell sets when `wp.os.refreshMenu()` spawns a hidden
307	// iframe to harvest a fresh payload from real admin context.
308	// Navigating to edit.php or similar doesn't change the menu so we
309	// don't bother sending a payload otherwise — the debounce +
310	// idempotent replaceItems on the parent side would still make it
311	// safe, just wasteful.
312	$menu_payload_json = 'null';
313	$pagenow = isset( $GLOBALS['pagenow'] ) ? (string) $GLOBALS['pagenow'] : '';
314	$is_refresh_probe = ! empty( $_GET['openstation_menu_refresh'] ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- read-only payload harvest, capability-gated by the host admin page.
315	if (
316	$is_refresh_probe
317	\|\| in_array(
318	$pagenow,
319	array( 'plugins.php', 'plugin-install.php', 'update.php', 'themes.php' ),
320	true
321	)
322	) {
323	$encoded = wp_json_encode( openstation_build_menu_payload() );
324	if ( false !== $encoded ) {
325	$menu_payload_json = $encoded;
326	}
327	}
328
329	// Content identity — which object this admin page shows ("comment 45
330	// of post 123"). Built here, in real admin context, because the URL
331	// alone can't resolve relations like comment → parent post. Always
332	// emitted (including `null`) so navigating an iframe from an
333	// identified page to an unidentified one clears the stale identity
334	// in the parent's relations engine.
335	$content_identity_json = wp_json_encode( openstation_build_content_identity() );
336	if ( false === $content_identity_json ) {
337	$content_identity_json = 'null';
338	}
339
340	// Emit via wp_print_inline_script_tag so CSP nonces and `<script>`
341	// attribute hygiene go through Core rather than being hand-rolled.
342	$js = <<<'JS'
343	//# sourceURL=os-chromeless-bridge.js
344	( function() {
345	// Escape hatch: a chromeless page is normally only meant to live
346	// inside a openstation window iframe. If the top window IS this
347	// page, the user usually ended up here by accident — bookmarked
348	// it, followed a stale link, or got stranded by a bad portal
349	// redirect. Without an admin bar there's no toggle to turn
350	// OpenStation off, so strip the chromeless flag and reload as
351	// classic admin. That puts the admin bar back and lets the user
352	// decide what to do.
353	//
354	// Unless something is deliberately HOSTING this page top-level.
355	// `window.openStationChromelessHost` is how an embedder says "this
356	// is not an accident, and I provide the way out" — the native
357	// desktop host sets it on windows a user set free, where closing
358	// the OS window is the way back. Rescuing those would strip the
359	// flag, reload as classic, bounce through the portal, and leave a
360	// whole second desktop inside a window that was meant to hold one
361	// screen.
362	//
363	// It has to be a JS global rather than a query flag: a query flag
364	// is lost on the first in-page navigation, and the host would stop
365	// recognising its own window the moment the user clicked a link.
366	if ( ! window.parent \|\| window.parent === window ) {
367	if ( ! window.openStationChromelessHost ) {
368	try {
369	var here = new URL( window.location.href );
370	if ( here.searchParams.has( 'openstation_chromeless' ) ) {
371	here.searchParams.delete( 'openstation_chromeless' );
372	here.searchParams.delete( 'desktop_mode_portal' );
373	window.location.replace( here.toString() );
374	}
375	} catch ( err ) {
376	/* URL parse failure — let the broken state stand rather than
377	* navigate somewhere worse. */
378	}
379	}
380	// Either way the rest of the bridge is skipped: every feature
381	// below posts to `window.parent`, and there isn't one.
382	return;
383	}
384
385	/*
386	* Content-identity announcement. The server resolved which object
387	* this page shows (post / comment / attachment, plus the root post
388	* a child belongs to) while it still had real admin context; hand
389	* it to the parent's relations engine. Deliberately posted even
390	* when the identity is null — a full-page navigation away from an
391	* identified screen must CLEAR the stale identity, and every
392	* navigation re-runs admin_footer, so this doubles as the
393	* re-announce-on-navigate path.
394	*
395	* Posted FIRST, right after the top-frame escape hatch, because it
396	* depends on nothing else in this script: a page-specific runtime
397	* failure in any of the feature blocks below (screen-meta harvest,
398	* command scan, link interceptor, …) must not cost the shell its
399	* window relations. The `os-ready` signal intentionally
400	* stays LAST — it means "every listener below is wired".
401	*/
402	try {
403	window.parent.postMessage(
404	{
405	type: 'os-content-identity',
406	identity: /__OPENSTATION_CONTENT_IDENTITY__/
407	},
408	window.location.origin
409	);
410	} catch ( _err ) { /* parent gone or cross-origin */ }
411
412	/*
413	* Editor save-watcher — keeps the identity fresh across block-editor
414	* saves. Gutenberg saves over REST without a page navigation, so the
415	* announcement above (rebuilt only on admin_footer) goes stale the
416	* moment the user adds a category, links a post, or sets a featured
417	* image — the parent's Related menu and window ties would show the
418	* pre-save state until a manual reload. After every real
419	* (non-autosave) save completes, refetch a server-recomputed
420	* identity from `desktop-mode/v1/content-identity` and re-announce
421	* it; the parent engine diffs and repaints. The classic editor
422	* reloads the page on save, which re-runs the announcement
423	* naturally — this block never engages there (no `core/editor`
424	* store on the page).
425	*/
426	window.addEventListener( 'load', function () {
427	try {
428	var wpg = window.wp;
429	if ( ! wpg \|\| ! wpg.data \|\| ! wpg.apiFetch \|\| typeof wpg.data.select !== 'function' ) {
430	return;
431	}
432	var editor = wpg.data.select( 'core/editor' );
433	if (
434	! editor \|\|
435	typeof editor.isSavingPost !== 'function' \|\|
436	typeof editor.getCurrentPostId !== 'function'
437	) {
438	return;
439	}
440	var wasSaving = false;
441	var wasNew = false;
442	var inFlight = false;
443	wpg.data.subscribe( function () {
444	var saving =
445	editor.isSavingPost() &&
446	! ( editor.isAutosavingPost && editor.isAutosavingPost() );
447	if ( saving && ! wasSaving ) {
448	// Capture "is this the first real save?" on the tick
449	// where saving STARTS — after the save completes the
450	// post is no longer new and the flag reads false.
451	wasNew = !! (
452	editor.isEditedPostNew && editor.isEditedPostNew()
453	);
454	}
455	var finished = wasSaving && ! saving;
456	wasSaving = saving;
457	if ( ! finished \|\| inFlight ) {
458	return;
459	}
460	if (
461	editor.didPostSaveRequestSucceed &&
462	! editor.didPostSaveRequestSucceed()
463	) {
464	return;
465	}
466	var postId = editor.getCurrentPostId();
467	if ( ! postId ) {
468	return;
469	}
470
471	/*
472	* Announce the save as a cross-window content-change
473	* broadcast. Gutenberg saves over REST with no
474	* navigation, so the server-side chromeless-footer
475	* emitter (includes/content-changes.php) never runs
476	* here — this is the only instant path for block-editor
477	* saves. The parent's broadcast receiver fans it out;
478	* list windows showing this post type refresh.
479	*/
480	if ( editor.getCurrentPostType ) {
481	try {
482	window.parent.postMessage(
483	{
484	type: 'os-broadcast',
485	topic:
486	'os.' +
487	editor.getCurrentPostType() +
488	'.changed',
489	payload: {
490	source: 'editor',
491	action: wasNew ? 'created' : 'updated',
492	ids: [ postId ],
493	},
494	},
495	window.location.origin
496	);
497	} catch ( _err ) { /* parent gone */ }
498	}
499	inFlight = true;
500	wpg
501	.apiFetch( {
502	path: '/desktop-mode/v1/content-identity?post=' + postId,
503	} )
504	.then( function ( res ) {
505	if ( res && res.identity ) {
506	window.parent.postMessage(
507	{
508	type: 'os-content-identity',
509	identity: res.identity,
510	},
511	window.location.origin
512	);
513	}
514	} )
515	.catch( function () {
516	/* Transient — the next save retries. */
517	} )
518	.finally( function () {
519	inFlight = false;
520	} );
521	} );
522	} catch ( _err ) {
523	/* Editor stores absent or shaped differently — nothing to watch. */
524	}
525	} );
526
527	/*
528	* Observability — iframe error + network capture.
529	*
530	* Everything admin-interesting (REST failures from Gutenberg,
531	* admin-ajax 500s, plugin console warnings) fires INSIDE the
532	* iframe whose parent is the desktop shell. Without relaying
533	* those events to the shell, monitor / debug widgets would only
534	* ever see the shell's own errors — the smallest, least-
535	* interesting surface in the whole admin.
536	*
537	* Two listeners and two wrappers land here:
538	*
539	* - `error` + `unhandledrejection` on window → postMessage
540	* `os-iframe-error`. Parent dispatches `HOOKS.
541	* IFRAME_ERROR`.
542	* - `fetch` + `XMLHttpRequest` are wrapped so every completed
543	* request (including failures) posts
544	* `os-iframe-network` with `{ method, url, status,
545	* duration, failed }`. Parent dispatches `HOOKS.
546	* IFRAME_NETWORK_COMPLETED`.
547	*
548	* Privacy: request / response bodies are NEVER captured — only
549	* method, URL, status, duration. Monitor widgets that want the
550	* full payload must ship their own deeper wrapper (at which
551	* point they own the consent conversation).
552	*/
553	try {
554	window.addEventListener( 'error', function ( e ) {
555	try {
556	window.parent.postMessage( {
557	type: 'os-iframe-error',
558	kind: 'error',
559	message: e && e.message ? String( e.message ) : '',
560	filename: e && e.filename ? String( e.filename ) : null,
561	lineno: e && typeof e.lineno === 'number' ? e.lineno : null,
562	colno: e && typeof e.colno === 'number' ? e.colno : null,
563	stack: e && e.error && e.error.stack ? String( e.error.stack ) : null
564	}, window.location.origin );
565	} catch ( _err ) { /* swallow: don't let the relay compound the error */ }
566	} );
567
568	window.addEventListener( 'unhandledrejection', function ( e ) {
569	try {
570	var reason = e && 'reason' in e ? e.reason : null;
571	var message = '';
572	var stack = null;
573	if ( reason instanceof Error ) {
574	message = reason.message;
575	stack = reason.stack \|\| null;
576	} else if ( reason !== null && reason !== undefined ) {
577	try { message = String( reason ); } catch ( _s ) { message = '[unstringifiable]'; }
578	}
579	window.parent.postMessage( {
580	type: 'os-iframe-error',
581	kind: 'unhandledrejection',
582	message: message,
583	filename: null,
584	lineno: null,
585	colno: null,
586	stack: stack
587	}, window.location.origin );
588	} catch ( _err ) { /* swallow */ }
589	} );
590
591	// Devtools instrumentation slot — populated by
592	// `os-instrument-set` messages from the parent shell.
593	// Mutable: parent overwrites the whole object on every change
594	// (header add/remove, observe toggle).
595	//
596	// Headers: { name: 'value' } — already pre-merged by the parent
597	// (RFC 7230 §3.2.2 join applied there).
598	// Observe: when true, network reports include request +
599	// response headers; otherwise only the privacy-conscious
600	// summary travels parent-bound.
601	window.__wpdInstrument = window.__wpdInstrument \|\| { headers: {}, observe: false };
602	try {
603	window.addEventListener( 'message', function ( ev ) {
604	if ( ev.origin !== window.location.origin \|\| ev.source !== window.parent ) {
605	return;
606	}
607	var d = ev && ev.data;
608	if ( ! d \|\| typeof d !== 'object' \|\| d.type !== 'os-instrument-set' ) {
609	return;
610	}
611	window.__wpdInstrument = {
612	headers: d.headers && typeof d.headers === 'object' ? d.headers : {},
613	observe: !! d.observe
614	};
615	} );
616	} catch ( _err ) { /* swallow — instrumentation is best-effort */ }
617
618	var osReportNetwork = function ( method, url, status, duration, failed, extra ) {
619	try {
620	var msg = {
621	type: 'os-iframe-network',
622	method: String( method \|\| 'GET' ).toUpperCase(),
623	url: String( url \|\| '' ),
624	status: typeof status === 'number' ? status : 0,
625	duration: typeof duration === 'number' ? duration : 0,
626	failed: !! failed
627	};
628	if ( extra && window.__wpdInstrument && window.__wpdInstrument.observe ) {
629	if ( extra.requestHeaders ) {
630	msg.requestHeaders = extra.requestHeaders;
631	}
632	if ( extra.responseHeaders ) {
633	msg.responseHeaders = extra.responseHeaders;
634	}
635	}
636	window.parent.postMessage( msg, window.location.origin );
637	} catch ( _err ) { /* swallow */ }
638	};
639
640	// Activity reporting — the window's status ring.
641	//
642	// `os-iframe-network` above fires on COMPLETION only, which is
643	// enough for the devtools panel and useless for an indicator:
644	// a ring that can only be told "it finished" never shows the
645	// part the user is waiting through. These two messages bracket
646	// the request instead, and the parent reference-counts them
647	// the same way `wp.os.fetch` does for native windows.
648	//
649	// Reads do NOT count. The ring answers one question — "did my
650	// change go through?" — and a GET has no "through": nothing was
651	// changed, so nothing can have failed to change. In an admin
652	// page most GETs are the page's own housekeeping (list-table
653	// refreshes, dashboard widgets, autosave checks, media queries)
654	// that the user never asked about and shouldn't be made to
655	// watch. Mutations are the requests with a question attached.
656	//
657	// HEAD and OPTIONS go with GET: a probe and a preflight are
658	// even further from a change than a read is.
659	//
660	// QUERY too, and it is the one that needs saying out loud: it
661	// carries a BODY, so every "does it have a payload?" heuristic
662	// mistakes it for a write. It is a safe, idempotent read — a
663	// GET whose parameters wouldn't fit in a URL — so it belongs
664	// here with the rest of them. Listed ahead of the spec landing
665	// on purpose: a method the shell has never heard of arriving in
666	// a Core release should not start lighting rings.
667	var osIsReadRequest = function ( method ) {
668	var m = String( method \|\| 'GET' ).toUpperCase();
669	return 'GET' === m \|\| 'HEAD' === m \|\| 'OPTIONS' === m \|\| 'QUERY' === m;
670	};
671
672	var osIsBackgroundRequest = function ( url, body ) {
673	// WordPress Heartbeat is a poll the user did not initiate,
674	// on a timer, forever. Reporting it would light the ring
675	// on every open window every 15 seconds and flash a
676	// "Saved" check for a save nobody made — the framework's
677	// own background pings pass `silent: true` for exactly
678	// this reason. The action rides in the POST body, not the
679	// URL, so both are checked.
680	try {
681	if ( String( url \|\| '' ).indexOf( 'action=heartbeat' ) !== -1 ) {
682	return true;
683	}
684	if ( typeof body === 'string' && body.indexOf( 'action=heartbeat' ) !== -1 ) {
685	return true;
686	}
687	if ( body && typeof body.get === 'function' && body.get( 'action' ) === 'heartbeat' ) {
688	return true;
689	}
690	} catch ( _bgErr ) { /* unreadable body — treat as foreground */ }
691	return false;
692	};
693
694	var osActivityBegin = function ( method, url, body ) {
695	if ( osIsReadRequest( method ) \|\| osIsBackgroundRequest( url, body ) ) {
696	return false;
697	}
698	try {
699	window.parent.postMessage(
700	{ type: 'os-iframe-activity', phase: 'start' },
701	window.location.origin
702	);
703	} catch ( _sErr ) { /* swallow — instrumentation is best-effort */ }
704	return true;
705	};
706
707	// `tracked` is the value `osActivityBegin` returned, so a
708	// request that was never counted can never decrement — an
709	// unbalanced end would settle the ring while other requests
710	// are still in flight.
711	var osActivityEnd = function ( tracked, failed, status ) {
712	if ( ! tracked ) {
713	return;
714	}
715	try {
716	window.parent.postMessage(
717	{
718	type: 'os-iframe-activity',
719	phase: 'end',
720	failed: !! failed,
721	status: typeof status === 'number' ? status : 0
722	},
723	window.location.origin
724	);
725	} catch ( _eErr ) { /* swallow */ }
726	};
727
728	// Helper — when an admin-side request returns 401/403 the
729	// session is most likely toast. Don't wait up to 60s for the
730	// next heartbeat tick to surface core's auth-check modal —
731	// force an immediate tick. `wp.heartbeat.connectNow()` is
732	// safe to call repeatedly; we still debounce to avoid storms
733	// when many requests fail at once. Same-origin gate keeps us
734	// out of third-party 403s. The URL gate avoids looping on
735	// heartbeat itself (heartbeat shouldn't 403 — but if it does
736	// the recursive connectNow would not help anyway).
737	var osAuthCheckCooldownUntil = 0;
738	var osMaybeForceAuthCheck = function ( status, url ) {
739	if ( status !== 401 && status !== 403 ) {
740	return;
741	}
742	var urlStr = String( url \|\| '' );
743	if ( ! urlStr ) {
744	return;
745	}
746	// Cross-origin URLs aren't ours to interpret.
747	try {
748	var resolved = new URL( urlStr, window.location.href );
749	if ( resolved.origin !== window.location.origin ) {
750	return;
751	}
752	// Skip heartbeat to avoid recursion. Skip wp-login
753	// because the login iframe itself returns 4xx during
754	// the auth handshake and we don't want to retrigger.
755	if (
756	resolved.pathname.indexOf( '/wp-admin/admin-ajax.php' ) !== -1
757	&& /(?:^\|&\|\?)action=heartbeat(?:&\|$)/.test( resolved.search )
758	) {
759	return;
760	}
761	if ( resolved.pathname.indexOf( '/wp-login.php' ) !== -1 ) {
762	return;
763	}
764	} catch ( _err ) {
765	return;
766	}
767	var now = Date.now();
768	if ( now < osAuthCheckCooldownUntil ) {
769	return;
770	}
771	osAuthCheckCooldownUntil = now + 5000;
772	try {
773	if (
774	window.wp
775	&& window.wp.heartbeat
776	&& typeof window.wp.heartbeat.connectNow === 'function'
777	) {
778	window.wp.heartbeat.connectNow();
779	}
780	} catch ( _err ) { /* swallow */ }
781	};
782
783	// Helper — convert an arbitrary `init.headers` shape into a
784	// plain `{ name: value }` map so the instrument layer can
785	// merge contributed headers without caring whether the caller
786	// passed a Headers, an array of pairs, or a plain object.
787	var osHeadersToObject = function ( h ) {
788	var out = {};
789	if ( ! h ) {
790	return out;
791	}
792	if ( typeof Headers !== 'undefined' && h instanceof Headers ) {
793	try {
794	h.forEach( function ( v, k ) { out[ k ] = v; } );
795	} catch ( _e ) { /* swallow */ }
796	return out;
797	}
798	if ( Array.isArray( h ) ) {
799	for ( var i = 0; i < h.length; i++ ) {
800	if ( h[ i ] && h[ i ].length >= 2 ) {
801	out[ h[ i ][ 0 ] ] = h[ i ][ 1 ];
802	}
803	}
804	return out;
805	}
806	if ( typeof h === 'object' ) {
807	for ( var k in h ) {
808	if ( Object.prototype.hasOwnProperty.call( h, k ) ) {
809	out[ k ] = h[ k ];
810	}
811	}
812	}
813	return out;
814	};
815
816	// Helper — snapshot the contributed-header set at request time.
817	// Header values can theoretically come and go between requests
818	// (parent ref-counts contributions) so we read fresh on every
819	// call rather than caching at wrap time.
820	var osContributedHeaders = function () {
821	var inst = window.__wpdInstrument \|\| {};
822	var headers = inst.headers \|\| {};
823	var out = {};
824	for ( var k in headers ) {
825	if ( Object.prototype.hasOwnProperty.call( headers, k ) && typeof headers[ k ] === 'string' ) {
826	out[ k ] = headers[ k ];
827	}
828	}
829	return out;
830	};
831
832	// Wrap fetch. Called AFTER `admin_footer` runs — plugin code
833	// using fetch during synchronous page boot (rare in wp-admin)
834	// bypasses this, but lazy calls (the common case) are captured.
835	//
836	// Two layers of behavior:
837	//
838	// - Always: timing + status reporting (the original
839	// observability contract).
840	// - When `__wpdInstrument.headers` is non-empty: merge those
841	// headers into the request before dispatch so devtools can
842	// tag every outgoing call without each plugin reinventing
843	// a fetch wrapper.
844	// - When `__wpdInstrument.observe`: also relay request +
845	// response headers in the parent-bound network message.
846	if ( typeof window.fetch === 'function' ) {
847	var osOrigFetch = window.fetch;
848	window.fetch = function ( input, init ) {
849	var start = ( typeof performance !== 'undefined' && performance.now )
850	? performance.now()
851	: Date.now();
852	var method = 'GET';
853	var url = '';
854	if ( typeof input === 'string' ) {
855	url = input;
856	if ( init && typeof init.method === 'string' ) {
857	method = init.method;
858	}
859	} else if ( input && typeof input === 'object' ) {
860	url = input.url \|\| '';
861	method = ( input.method \|\| ( init && init.method ) \|\| 'GET' );
862	}
863
864	// Header contribution + capture. Build a single
865	// `Headers` instance so contributed values overwrite /
866	// stack predictably regardless of the caller's input
867	// shape, then re-attach to a cloned init.
868	var contributed = osContributedHeaders();
869	var observe = window.__wpdInstrument && window.__wpdInstrument.observe;
870	var requestHeaders = null;
871	var hasContributed = false;
872	for ( var ck in contributed ) {
873	if ( Object.prototype.hasOwnProperty.call( contributed, ck ) ) {
874	hasContributed = true;
875	break;
876	}
877	}
878	if ( hasContributed \|\| observe ) {
879	var existing = osHeadersToObject( init && init.headers );
880	if ( input && typeof input === 'object' && input.headers ) {
881	var fromReq = osHeadersToObject( input.headers );
882	for ( var rk in fromReq ) {
883	if ( Object.prototype.hasOwnProperty.call( fromReq, rk ) && ! ( rk in existing ) ) {
884	existing[ rk ] = fromReq[ rk ];
885	}
886	}
887	}
888	for ( var ck2 in contributed ) {
889	if ( Object.prototype.hasOwnProperty.call( contributed, ck2 ) ) {
890	existing[ ck2 ] = contributed[ ck2 ];
891	}
892	}
893	if ( hasContributed ) {
894	init = init ? Object.assign( {}, init ) : {};
895	init.headers = existing;
896	arguments[ 1 ] = init;
897	}
898	if ( observe ) {
899	requestHeaders = existing;
900	}
901	}
902
903	var tracked = osActivityBegin( method, url, ( init && init.body ) \|\| ( input && input.body ) );
904
905	var promise;
906	try {
907	promise = osOrigFetch.apply( this, arguments );
908	} catch ( sync ) {
909	osReportNetwork( method, url, 0, 0, true, requestHeaders ? { requestHeaders: requestHeaders } : null );
910	osActivityEnd( tracked, true, 0 );
911	throw sync;
912	}
913	return promise.then(
914	function ( res ) {
915	var dur = ( ( typeof performance !== 'undefined' && performance.now )
916	? performance.now()
917	: Date.now() ) - start;
918	var extra = null;
919	if ( requestHeaders ) {
920	extra = { requestHeaders: requestHeaders };
921	try {
922	var rh = {};
923	if ( res && res.headers && typeof res.headers.forEach === 'function' ) {
924	res.headers.forEach( function ( v, k ) { rh[ k ] = v; } );
925	}
926	extra.responseHeaders = rh;
927	} catch ( _hErr ) { /* swallow */ }
928	}
929	osReportNetwork( method, url, res.status, Math.round( dur ), ! res.ok, extra );
930	// `fetch` resolves for 4xx / 5xx, so the ring
931	// settles on `res.ok` and not on the promise.
932	osActivityEnd( tracked, ! res.ok, res.status );
933	osMaybeForceAuthCheck( res.status, url );
934	return res;
935	},
936	function ( err ) {
937	var dur = ( ( typeof performance !== 'undefined' && performance.now )
938	? performance.now()
939	: Date.now() ) - start;
940	osReportNetwork( method, url, 0, Math.round( dur ), true, requestHeaders ? { requestHeaders: requestHeaders } : null );
941	osActivityEnd( tracked, true, 0 );
942	throw err;
943	}
944	);
945	};
946	}
947
948	// Wrap XHR — admin-ajax runs through jQuery which runs through
949	// XHR, so fetch-only instrumentation would miss most of the
950	// legacy admin surface. Record method + URL on open; fire on
951	// loadend regardless of success / failure.
952	//
953	// Header contribution layer: `setRequestHeader` after open() but
954	// before send() — that's the only window the spec allows. The
955	// caller's own headers are tracked so observation can include
956	// them alongside the contributed ones.
957	if ( typeof XMLHttpRequest !== 'undefined' ) {
958	var osOrigOpen = XMLHttpRequest.prototype.open;
959	var osOrigSend = XMLHttpRequest.prototype.send;
960	var osOrigSetHeader = XMLHttpRequest.prototype.setRequestHeader;
961	XMLHttpRequest.prototype.open = function ( method, url ) {
962	try {
963	this.__wpdMethod = method;
964	this.__wpdUrl = url;
965	this.__wpdReqHeaders = {};
966	} catch ( _err ) { /* frozen instance — skip */ }
967	return osOrigOpen.apply( this, arguments );
968	};
969	XMLHttpRequest.prototype.setRequestHeader = function ( name, value ) {
970	try {
971	if ( ! this.__wpdReqHeaders ) {
972	this.__wpdReqHeaders = {};
973	}
974	this.__wpdReqHeaders[ name ] = value;
975	} catch ( _err ) { /* swallow */ }
976	return osOrigSetHeader.apply( this, arguments );
977	};
978	XMLHttpRequest.prototype.send = function ( body ) {
979	var xhr = this;
980	var start = ( typeof performance !== 'undefined' && performance.now )
981	? performance.now()
982	: Date.now();
983	// The body is where an admin-ajax action name lives,
984	// and the action name is how Heartbeat is recognised.
985	var tracked = osActivityBegin( xhr.__wpdMethod, xhr.__wpdUrl, body );
986
987	// Apply contributed headers right before send. Doing it
988	// here rather than in open() means contributions added
989	// after open() (e.g. in async-built request flows) still
990	// land on the wire.
991	var contributed = osContributedHeaders();
992	var observe = window.__wpdInstrument && window.__wpdInstrument.observe;
993	for ( var hk in contributed ) {
994	if ( Object.prototype.hasOwnProperty.call( contributed, hk ) ) {
995	try {
996	osOrigSetHeader.call( xhr, hk, contributed[ hk ] );
997	if ( ! xhr.__wpdReqHeaders ) {
998	xhr.__wpdReqHeaders = {};
999	}
1000	xhr.__wpdReqHeaders[ hk ] = contributed[ hk ];
1001	} catch ( _hErr ) { /* `setRequestHeader` rejects forbidden names — skip */ }
1002	}
1003	}
1004
1005	var fire = function () {
1006	var dur = ( ( typeof performance !== 'undefined' && performance.now )
1007	? performance.now()
1008	: Date.now() ) - start;
1009	var extra = null;
1010	if ( observe ) {
1011	extra = {
1012	requestHeaders: xhr.__wpdReqHeaders \|\| {}
1013	};
1014	try {
1015	var raw = xhr.getAllResponseHeaders ? xhr.getAllResponseHeaders() : '';
1016	var resHeaders = {};
1017	if ( raw && typeof raw === 'string' ) {
1018	var lines = raw.trim().split( /[\r\n]+/ );
1019	for ( var li = 0; li < lines.length; li++ ) {
1020	var idx = lines[ li ].indexOf( ':' );
1021	if ( idx > 0 ) {
1022	resHeaders[ lines[ li ].slice( 0, idx ).trim() ] = lines[ li ].slice( idx + 1 ).trim();
1023	}
1024	}
1025	}
1026	extra.responseHeaders = resHeaders;
1027	} catch ( _rErr ) { /* swallow */ }
1028	}
1029	var failed = xhr.status === 0 \|\| xhr.status >= 400;
1030	osReportNetwork(
1031	xhr.__wpdMethod,
1032	xhr.__wpdUrl,
1033	xhr.status,
1034	Math.round( dur ),
1035	failed,
1036	extra
1037	);
1038	osActivityEnd( tracked, failed, xhr.status );
1039	osMaybeForceAuthCheck( xhr.status, xhr.__wpdUrl );
1040	};
1041	try {
1042	xhr.addEventListener( 'loadend', fire );
1043	} catch ( _err ) { /* swallow */ }
1044	return osOrigSend.apply( this, arguments );
1045	};
1046	}
1047
1048	// Wrap sendBeacon — used by analytics + telemetry. The Beacon
1049	// API doesn't accept headers (the entire point of beacons is
1050	// minimal payload + best-effort delivery). When devtools have
1051	// contributed headers we silently fall back to fetch with
1052	// `keepalive: true`, which is the closest semantic match —
1053	// guaranteed POST + same fire-and-forget intent + custom headers
1054	// allowed. Without contributions we just relay the call.
1055	if ( typeof navigator !== 'undefined' && typeof navigator.sendBeacon === 'function' ) {
1056	var osOrigBeacon = navigator.sendBeacon.bind( navigator );
1057	navigator.sendBeacon = function ( url, data ) {
1058	var contributed = osContributedHeaders();
1059	var hasContributed = false;
1060	for ( var ck in contributed ) {
1061	if ( Object.prototype.hasOwnProperty.call( contributed, ck ) ) {
1062	hasContributed = true;
1063	break;
1064	}
1065	}
1066	var start = ( typeof performance !== 'undefined' && performance.now )
1067	? performance.now()
1068	: Date.now();
1069	if ( ! hasContributed ) {
1070	var ok = false;
1071	try { ok = !! osOrigBeacon( url, data ); } catch ( _e ) { ok = false; }
1072	osReportNetwork( 'POST', url, ok ? 200 : 0, 0, ! ok );
1073	return ok;
1074	}
1075	try {
1076	var observe = window.__wpdInstrument && window.__wpdInstrument.observe;
1077	var headers = {};
1078	for ( var hk2 in contributed ) {
1079	if ( Object.prototype.hasOwnProperty.call( contributed, hk2 ) ) {
1080	headers[ hk2 ] = contributed[ hk2 ];
1081	}
1082	}
1083	window.fetch( url, {
1084	method: 'POST',
1085	body: data,
1086	keepalive: true,
1087	credentials: 'same-origin',
1088	headers: headers
1089	} ).then(
1090	function ( res ) {
1091	var dur = ( ( typeof performance !== 'undefined' && performance.now )
1092	? performance.now()
1093	: Date.now() ) - start;
1094	osReportNetwork( 'POST', url, res.status, Math.round( dur ), ! res.ok, observe ? { requestHeaders: headers } : null );
1095	},
1096	function () {
1097	var dur = ( ( typeof performance !== 'undefined' && performance.now )
1098	? performance.now()
1099	: Date.now() ) - start;
1100	osReportNetwork( 'POST', url, 0, Math.round( dur ), true, observe ? { requestHeaders: headers } : null );
1101	}
1102	);
1103	return true;
1104	} catch ( _bErr ) {
1105	return false;
1106	}
1107	};
1108	}
1109	} catch ( _err ) {
1110	/* Whole observability block is best-effort. If something in
1111	* the environment disagrees (frozen prototypes, CSP blocking
1112	* postMessage, etc.) we don't want to tank the rest of the
1113	* chromeless bridge. */
1114	}
1115
1116	/*
1117	* Menu-changed signal.
1118	*
1119	* The shell's dock is built from `$menu` at page-load time and
1120	* then frozen — the iframe reload that follows plugin
1121	* activation / deactivation / installation doesn't tell the
1122	* parent the admin menu just mutated. This handler fires inside
1123	* the iframe that JUST LOADED plugins.php (or a sibling menu-
1124	* affecting page) and hands the parent a fresh payload the PHP
1125	* side built server-side from the live $menu globals.
1126	*
1127	* Why not a REST roundtrip: plugins commonly gate their
1128	* `admin_menu` registration on `is_admin()` evaluated AT PLUGIN
1129	* LOAD. REST requests don't define `WP_ADMIN` at plugin-load
1130	* time, so those plugins never register and a REST-context
1131	* bootstrap can't retroactively make them. By capturing the
1132	* payload here, inside a real admin context, we get the
1133	* authoritative post-activation state that any REST endpoint
1134	* would miss.
1135	*
1136	* Covered pages:
1137	* - plugins.php — activate, deactivate, bulk, delete.
1138	* - plugin-install.php — install new, install-and-activate.
1139	* - update.php — update / install handler (install-
1140	* plugin + upload-plugin actions).
1141	* - themes.php — theme switch (rare but can add menus).
1142	*/
1143	var __OPENSTATION_MENU_PAYLOAD__ = /__OPENSTATION_MENU_PAYLOAD__/;
1144	var __OPENSTATION_MENU_SIG__ = /__OPENSTATION_MENU_SIG__/;
1145	/*
1146	* Icon harvest from the iframe's authoritative #adminmenu.
1147	*
1148	* The server-side payload only knows what the plugin set on
1149	* $menu[$i][6]. Plugins that register their icon with 'none' /
1150	* 'div' and paint it via a CSS rule on `#adminmenu .menu-icon-X`
1151	* (All in One WP Migration, plus a long tail of older plugins)
1152	* end up serialized with the gear fallback.
1153	*
1154	* On a regular page load the parent shell's resolveIcon() falls
1155	* back to the parent's hidden #adminmenu DOM and reads the icon
1156	* from there — but on a live activation the parent's #adminmenu
1157	* is stale (it was rendered before the plugin existed). This
1158	* iframe just rendered plugins.php in real admin context, so its
1159	* own #adminmenu DOM IS authoritative; harvest each menu item's
1160	* resolved icon here and patch the dockItems before postMessage.
1161	*/
1162	try {
1163	if (
1164	__OPENSTATION_MENU_PAYLOAD__
1165	&& Array.isArray( __OPENSTATION_MENU_PAYLOAD__.dockItems )
1166	) {
1167	var __wpdAdminMenu = document.getElementById( 'adminmenu' );
1168	if ( __wpdAdminMenu ) {
1169	var __wpdHarvest = {};
1170	var __wpdLinks = __wpdAdminMenu.querySelectorAll( 'li.menu-top > a' );
1171	for ( var __wpdLi = 0; __wpdLi < __wpdLinks.length; __wpdLi++ ) {
1172	var __wpdLink = __wpdLinks[ __wpdLi ];
1173	var __wpdKey;
1174	try {
1175	var __wpdU = new URL( __wpdLink.href \|\| '', window.location.href );
1176	__wpdKey = ( __wpdU.pathname.split( '/' ).pop() \|\| '' ) + __wpdU.search;
1177	} catch ( __wpdE1 ) { continue; }
1178	if ( ! __wpdKey ) { continue; }
1179	var __wpdImgWrap = __wpdLink.querySelector( '.wp-menu-image' );
1180	if ( ! __wpdImgWrap ) { continue; }
1181
1182	/* (a) <img src> nested inside .wp-menu-image */
1183	var __wpdImg = __wpdImgWrap.querySelector( 'img' );
1184	if ( __wpdImg && __wpdImg.src ) {
1185	__wpdHarvest[ __wpdKey ] = __wpdImg.src;
1186	continue;
1187	}
1188
1189	/* (b) dashicon class on the wrap div itself */
1190	var __wpdDash = ( __wpdImgWrap.className \|\| '' ).match( /\bdashicons-[\w-]+\b/ );
1191	if (
1192	__wpdDash
1193	&& __wpdDash[ 0 ] !== 'dashicons-before'
1194	&& __wpdDash[ 0 ] !== 'dashicons-admin-generic'
1195	) {
1196	__wpdHarvest[ __wpdKey ] = __wpdDash[ 0 ];
1197	continue;
1198	}
1199
1200	/* (c) ::before background-image — pass the raw
1201	* `url(...)` CSS value through; the parent's
1202	* resolveIcon can hand it straight to _makeSvgIcon
1203	* regardless of whether it's base64-encoded SVG,
1204	* URL-encoded SVG, or a plain http(s) URL. */
1205	try {
1206	var __wpdBefore = window.getComputedStyle( __wpdImgWrap, '::before' );
1207	var __wpdBg = __wpdBefore && __wpdBefore.backgroundImage;
1208	if ( __wpdBg && __wpdBg !== 'none' && __wpdBg.indexOf( 'url("")' ) === -1 ) {
1209	__wpdHarvest[ __wpdKey ] = __wpdBg;
1210	continue;
1211	}
1212	/* (d) background on the wrap itself */
1213	var __wpdWrapBg = window.getComputedStyle( __wpdImgWrap ).backgroundImage;
1214	if ( __wpdWrapBg && __wpdWrapBg !== 'none' && __wpdWrapBg.indexOf( 'url("")' ) === -1 ) {
1215	__wpdHarvest[ __wpdKey ] = __wpdWrapBg;
1216	}
1217	} catch ( __wpdE2 ) { /* getComputedStyle may throw on detached nodes */ }
1218	}
1219
1220	var __wpdItems = __OPENSTATION_MENU_PAYLOAD__.dockItems;
1221	for ( var __wpdDi = 0; __wpdDi < __wpdItems.length; __wpdDi++ ) {
1222	var __wpdItem = __wpdItems[ __wpdDi ];
1223	if ( ! __wpdItem \|\| __wpdItem.icon !== 'dashicons-admin-generic' ) { continue; }
1224	if ( typeof __wpdItem.url !== 'string' \|\| ! __wpdItem.url ) { continue; }
1225	try {
1226	var __wpdItemU = new URL( __wpdItem.url, window.location.href );
1227	var __wpdItemKey = ( __wpdItemU.pathname.split( '/' ).pop() \|\| '' ) + __wpdItemU.search;
1228	if ( __wpdHarvest[ __wpdItemKey ] ) {
1229	__wpdItem.icon = __wpdHarvest[ __wpdItemKey ];
1230	}
1231	} catch ( __wpdE3 ) { /* malformed url — leave icon alone */ }
1232	}
1233	}
1234	}
1235	} catch ( __wpdHarvestErr ) {
1236	/* Harvest is best-effort; on any failure we still ship the
1237	* server-built payload, which is exactly the pre-fix behavior. */
1238	}
1239	/*
1240	* Menu payload / signature target: the SHELL, i.e. the top window —
1241	* not the immediate parent. For a normal window iframe the two are
1242	* the same frame, but the bulk updater nests: update-core.php (the
1243	* window iframe) hosts a progress iframe of `update.php?action=
1244	* update-selected`, whose `iframe_footer()` fires `admin_footer`
1245	* AFTER the upgrades ran — exactly the fresh payload the shell
1246	* wants. Posting that to `window.parent` hands it to the
1247	* update-core.php page, which has no listener, and the dock badge
1248	* stays stale (GH#296). `window.top` reaches the shell from any
1249	* nesting depth; the targetOrigin pin means a cross-origin top
1250	* (foreign page iframing wp-admin) simply never receives it.
1251	*/
1252	try {
1253	var __wpdShell = window.top \|\| window.parent;
1254	if ( __OPENSTATION_MENU_PAYLOAD__ ) {
1255	__wpdShell.postMessage(
1256	{
1257	type: 'os-plugins-changed',
1258	payload: __OPENSTATION_MENU_PAYLOAD__
1259	},
1260	window.location.origin
1261	);
1262	} else if ( __OPENSTATION_MENU_SIG__ ) {
1263	/*
1264	* No full payload on this page — but we still ship the cheap
1265	* menu signature so the shell can notice a menu change that
1266	* happened somewhere off the plugins/themes/update path (a
1267	* CPT registered via a settings tool, a plugin that adds a
1268	* menu on save, …) and spend a refresh probe only then.
1269	* GH#325.
1270	*/
1271	__wpdShell.postMessage(
1272	{
1273	type: 'os-menu-signature',
1274	sig: __OPENSTATION_MENU_SIG__
1275	},
1276	window.location.origin
1277	);
1278	}
1279	} catch ( err ) {
1280	/* postMessage throws only on structured-clone failures, which
1281	* this static payload won't hit. Swallow defensively so a
1282	* wayward extension wrapping window.parent can't break the
1283	* rest of the bridge. */
1284	}
1285
1286	/*
1287	* Link & form interceptor.
1288	*
1289	* Every same-origin wp-admin <a> href and <form> action gets the
1290	* `openstation_chromeless=1` flag appended so navigation inside the iframe stays
1291	* chromeless. Without this, a stray link to /wp-admin/edit.php (see
1292	* Gutenberg's fullscreen close button, help-tab links, "Return to
1293	* posts" affordances, etc.) re-renders the full classic admin inside
1294	* our window.
1295	*
1296	* Excluded from rewriting:
1297	* - modifier clicks (cmd/ctrl/shift/alt) — user wants to open a
1298	* new tab/window, respect that
1299	* - target="_blank" / target="_top" / target="_parent"
1300	* - download attribute
1301	* - in-page anchors (#)
1302	* - mailto:, tel:, javascript: schemes
1303	* - cross-origin URLs
1304	* - URLs that already carry openstation_chromeless=
1305	*/
1306	function rewriteAdminUrl( href, base ) {
1307	if ( ! href \|\| href.charAt( 0 ) === '#' ) {
1308	return null;
1309	}
1310	if ( /^(mailto:\|tel:\|javascript:\|data:)/i.test( href ) ) {
1311	return null;
1312	}
1313	var url;
1314	try {
1315	url = new URL( href, base );
1316	} catch ( err ) {
1317	return null;
1318	}
1319	if ( url.origin !== window.location.origin ) {
1320	return null;
1321	}
1322	if ( url.pathname.indexOf( '/wp-admin/' ) === -1 ) {
1323	return null;
1324	}
1325	if ( url.searchParams.has( 'openstation_chromeless' ) ) {
1326	return null;
1327	}
1328	url.searchParams.set( 'openstation_chromeless', '1' );
1329	return url.toString();
1330	}
1331
1332	/*
1333	* Classify a link so we know whether to rewrite it (admin),
1334	* escalate it to the parent shell (external / non-admin), or let
1335	* the browser navigate naturally (mailto, anchor, download, etc.).
1336	*
1337	* 'admin' — same-origin /wp-admin/ URL we rewrite in place.
1338	* 'external' — http(s) URL we want the parent shell to open
1339	* as a sub-tab instead of navigating the iframe
1340	* out of wp-admin. Covers both cross-origin
1341	* links (plugin author sites, external docs) AND
1342	* same-origin non-admin links (the site's own
1343	* front-end pages).
1344	* 'passthrough' — anything else (mailto, tel, javascript, data,
1345	* anchors, unparseable). The browser handles it.
1346	*/
1347	function classifyLink( href, base ) {
1348	if ( ! href \|\| href.charAt( 0 ) === '#' ) {
1349	return 'passthrough';
1350	}
1351	if ( /^(mailto:\|tel:\|javascript:\|data:)/i.test( href ) ) {
1352	return 'passthrough';
1353	}
1354	var url;
1355	try {
1356	url = new URL( href, base );
1357	} catch ( err ) {
1358	return 'passthrough';
1359	}
1360	if ( url.protocol !== 'http:' && url.protocol !== 'https:' ) {
1361	return 'passthrough';
1362	}
1363	if (
1364	url.origin === window.location.origin &&
1365	url.pathname.indexOf( '/wp-admin/' ) !== -1
1366	) {
1367	return 'admin';
1368	}
1369	return 'external';
1370	}
1371
1372	/*
1373	* Rewrite a link's href to carry `_wp_http_referer=<this page>`.
1374	*
1375	* The iframe-side twin of `stampSourceReferer()` in
1376	* `src/window/iframe-bridge.ts`, for links the interceptor yields
1377	* on: the parent never sees the click, so it can't stamp them.
1378	* `wp_get_referer()` reads `$_REQUEST['_wp_http_referer']` ahead
1379	* of the raw header, so the param survives any `Referrer-Policy`.
1380	*
1381	* Same three guards as the parent, for the same reasons: never
1382	* overwrite a referer the markup already supplied, stay
1383	* same-origin (a mis-attributed referer is worse than none), and
1384	* strip the chromeless flag from the hint so it doesn't loop into
1385	* whatever redirect WP builds out of it.
1386	*/
1387	function stampSourceRefererOnLink( link ) {
1388	try {
1389	var target = new URL( link.getAttribute( 'href' ), window.location.href );
1390	if ( target.origin !== window.location.origin ) {
1391	return;
1392	}
1393	if ( target.searchParams.has( '_wp_http_referer' ) ) {
1394	return;
1395	}
1396	var source = new URL( window.location.href );
1397	source.searchParams.delete( 'openstation_chromeless' );
1398	target.searchParams.set(
1399	'_wp_http_referer',
1400	source.pathname + ( source.search ? source.search : '' )
1401	);
1402	link.setAttribute( 'href', target.toString() );
1403	} catch ( err ) {
1404	/* Unparseable href, so leave the link exactly as it was. */
1405	}
1406	}
1407
1408	/*
1409	* The text a link actually SHOWS, for use as a window title.
1410	*
1411	* `textContent` is the wrong source on its own. WP Core routinely
1412	* pairs a terse visible label with a longer screen-reader one
1413	* inside the same anchor, and reads back as both at once. Drop the
1414	* screen-reader half (`.screen-reader-text` is Core's own class for
1415	* it, `.hidden` covers the markup that toggles) and collapse the
1416	* indentation whitespace the templates leave behind.
1417	*
1418	* The parent treats a label harvested this way as provisional and
1419	* upgrades it to the destination page's own title once the iframe
1420	* loads — see `titleFromPage` in `src/types.ts`.
1421	*/
1422	/*
1423	* The wp-admin filename a URL points at (`revision.php`), or an
1424	* empty string when it can't be read. Used to tell "a different
1425	* admin screen" from "another view of this one" without needing
1426	* the shell's window-slug rules.
1427	*/
1428	function adminFileOf( url ) {
1429	try {
1430	return new URL( url, window.location.href ).pathname.split( '/' ).pop();
1431	} catch ( err ) {
1432	return '';
1433	}
1434	}
1435
1436	function visibleLinkText( link ) {
1437	var clone = link.cloneNode( true );
1438	var muted = clone.querySelectorAll( '.screen-reader-text, .hidden' );
1439	for ( var i = 0; i < muted.length; i++ ) {
1440	if ( muted[ i ].parentNode ) {
1441	muted[ i ].parentNode.removeChild( muted[ i ] );
1442	}
1443	}
1444	return ( clone.textContent \|\| '' ).replace( /\s+/g, ' ' ).trim();
1445	}
1446
1447	document.addEventListener( 'click', function ( e ) {
1448	if ( e.defaultPrevented ) {
1449	return;
1450	}
1451	if ( e.button !== 0 \|\| e.metaKey \|\| e.ctrlKey \|\| e.shiftKey \|\| e.altKey ) {
1452	return;
1453	}
1454	var link = e.target && e.target.closest ? e.target.closest( 'a[href]' ) : null;
1455	if ( ! link ) {
1456	return;
1457	}
1458	/*
1459	* A link that names another browsing context.
1460	*
1461	* `_blank` on a /wp-admin/ URL means "open this admin screen
1462	* without losing the one I am on", and inside the shell that
1463	* is another window rather than a browser tab that drops the
1464	* user out of the desktop. Claimed only when the destination
1465	* is a DIFFERENT wp-admin file: whether two URLs on one file
1466	* are the same "page" depends on the shell's window-slug
1467	* rules, which the iframe can't see, and guessing wrong makes
1468	* the parent navigate the window the link was clicked in.
1469	*
1470	* Every other target yields. `_top` / `_parent` are a
1471	* deliberate "replace the whole shell" and a page's only
1472	* escape hatch; a named target (`wp-preview-4`) reuses one
1473	* specific tab across clicks, which a window cannot honour;
1474	* and any target on a non-admin URL has no window to open
1475	* into.
1476	*/
1477	var newContext = false;
1478	var linkTarget = link.target \|\| '';
1479	if ( linkTarget !== '' && linkTarget !== '_self' ) {
1480	var claimable =
1481	linkTarget === '_blank' &&
1482	classifyLink( link.getAttribute( 'href' ), window.location.href ) === 'admin' &&
1483	adminFileOf( link.getAttribute( 'href' ) ) !== '' &&
1484	adminFileOf( link.getAttribute( 'href' ) ) !== adminFileOf( window.location.href );
1485	if ( ! claimable ) {
1486	return;
1487	}
1488	newContext = true;
1489	}
1490	if ( link.hasAttribute( 'download' ) ) {
1491	return;
1492	}
1493	/*
1494	* Activity-footprint launcher. A "View activity footprint" row
1495	* action (added to the Users list table by
1496	* `openstation_user_footprint_row_action`) carries the target
1497	* user id in `data-os-footprint`. The iframe has no
1498	* shell API of its own, so we escalate the click to the parent
1499	* shell, which opens the My WordPress window on that user's
1500	* footprint. Checked BEFORE classifyLink so the link's real
1501	* href — a graceful profile-edit fallback for no-JS — is never
1502	* followed inside the shell. Modifier-key / middle clicks are
1503	* already filtered above, so cmd/ctrl-click still opens that
1504	* fallback in a new browser tab.
1505	*/
1506	var footprintAttr = link.getAttribute( 'data-os-footprint' );
1507	if ( footprintAttr ) {
1508	var footprintUid = parseInt( footprintAttr, 10 );
1509	if ( footprintUid > 0 ) {
1510	e.preventDefault();
1511	try {
1512	window.parent.postMessage(
1513	{
1514	type: 'os-open-user-footprint',
1515	userId: footprintUid,
1516	userName: link.getAttribute( 'data-os-footprint-name' ) \|\| ''
1517	},
1518	window.location.origin
1519	);
1520	} catch ( footprintErr ) {
1521	/* Same-origin postMessage can only fail in a sandbox
1522	* we don't support — swallow rather than block the
1523	* click. */
1524	}
1525	return;
1526	}
1527	}
1528	/*
1529	* `aria-button-if-js` is WP core's own marker for "this anchor
1530	* is really an in-page button; the href is only the no-JS
1531	* fallback". Core stamps `role="button"` on every one of them
1532	* (`wp-admin/js/common.js`), and the owning script binds a
1533	* bubble-phase handler that calls preventDefault: media-grid.js
1534	* for the Media Library's uploader toggle, wp-lists for the
1535	* comment row actions, tags.js for term Delete, updates.js
1536	* for the auto-update toggles.
1537	*
1538	* Our capture-phase handler runs first, so hijacking these
1539	* substitutes the fallback URL for the in-page action the user
1540	* actually asked for. On the Media Library grid that showed up as
1541	* two uploaders at once: the shell opened a window for
1542	* `media-new.php` (the fallback) while media-grid.js's
1543	* `addNewClickHandler` still expanded the inline drop zone in the
1544	* Media window behind it, and closing the window left the drop
1545	* zone stranded above the grid.
1546	*
1547	* The class does NOT promise a handler, though. The Media list
1548	* table stamps it on Trash / Restore / Delete Permanently
1549	* (`.submitdelete`, `class-wp-media-list-table.php`) and binds
1550	* nothing: the href really is the navigation. Yielding is still
1551	* right for those (the inline `onclick` confirm runs, and
1552	* cancelling actually cancels, which it did not when we
1553	* preventDefaulted in capture ahead of it), but the parent's
1554	* destructive-action path used to stamp `_wp_http_referer` on
1555	* them, and a raw navigation loses that. See `stampSourceReferer`
1556	* in `src/window/iframe-bridge.ts` for the full rationale; the
1557	* short version is that a `Referrer-Policy` of `strict-origin` or
1558	* tighter downgrades the `Referer` header to the bare origin,
1559	* which `post.php` matches against neither `post.php` nor
1560	* `post-new.php`, so `$sendback` stays the origin and the window
1561	* lands on the site front page instead of back on the list.
1562	*
1563	* So stamp the hint ourselves before yielding. In here the
1564	* source page IS `window.location`, which makes this the same
1565	* value the parent would have computed, minus the round trip.
1566	*/
1567	if ( link.classList.contains( 'aria-button-if-js' ) ) {
1568	if ( link.classList.contains( 'submitdelete' ) ) {
1569	stampSourceRefererOnLink( link );
1570	}
1571	return;
1572	}
1573	/*
1574	* Same story as `aria-button-if-js` above, minus the marker
1575	* class: `plugin-install.php`'s "Upload Plugin" href is a
1576	* no-JS fallback, and plugin-install.js binds a bubble-phase
1577	* handler that opens the drop zone in place above the plugin
1578	* cards. Our capture handler used to win and navigate to
1579	* `?tab=upload`, which shows the uploader with no cards.
1580	*
1581	* On that page core skips the binding on purpose ("let the
1582	* link behave like a link"), flagged by
1583	* `plugin-install-tab-upload` on the wrap. There the href is
1584	* the real navigation, so we route it as usual.
1585	*
1586	* `theme-install.php`'s Upload Theme is a `<button>`, so it
1587	* never reaches this handler.
1588	*/
1589	if ( link.classList.contains( 'upload-view-toggle' ) ) {
1590	var uploadWrap = link.closest( '.wrap' );
1591	if (
1592	! uploadWrap \|\|
1593	! uploadWrap.classList.contains( 'plugin-install-tab-upload' )
1594	) {
1595	return;
1596	}
1597	}
1598	/*
1599	* Same shape as the toggles above: dashboard.js binds the
1600	* dismiss on the anchor and preventDefaults, so our capture
1601	* handler gets there first and routes `?welcome=0` (a dead
1602	* no-JS fallback) into a second Dashboard window titled
1603	* "Dismiss". Scoped like core's own selector, so a
1604	* `welcome-panel-close` elsewhere still routes.
1605	*/
1606	if (
1607	link.closest( '#welcome-panel' ) &&
1608	( link.classList.contains( 'welcome-panel-close' ) \|\|
1609	link.closest( '.welcome-panel-dismiss' ) )
1610	) {
1611	return;
1612	}
1613	/*
1614	* WordPress core's wp-admin/js/updates.js owns the click on these
1615	* AJAX-driven plugin/theme management buttons — it binds in bubble
1616	* phase and calls preventDefault to take over with an in-place
1617	* AJAX install / update / delete (with its own progress spinner
1618	* and inline success/failure UX). Our capture-phase handler would
1619	* preempt it: preventDefault here fires BEFORE updates.js's own,
1620	* the AJAX call never starts, and the postMessage below diverts
1621	* the user to the link's no-JS fallback URL (update.php?action=
1622	* install-plugin&...) opened as a freshly spawned desktop window.
1623	* That fallback technically completes the install server-side,
1624	* but it's a long blocking page-load with no in-place feedback —
1625	* which is what users perceive as "Install Now keeps loading and
1626	* opens a new tab". Skip these classes so updates.js's bubble
1627	* handler runs as core intended.
1628	*
1629	* The plugins-list-table row action "Delete" is the same story
1630	* with a different marker: a bare `a.delete` inside a
1631	* `tr[data-plugin]` (updates.js binds `[data-plugin] a.delete`;
1632	* the network themes list is `.themes-php.network-admin
1633	* a.delete`) — it never carries the `delete-plugin` /
1634	* `delete-theme` classes of the card-style buttons above.
1635	* Hijacking it navigated the iframe to the link's no-JS
1636	* bulk-delete fallback WHILE updates.js's AJAX delete was
1637	* already running: `wp.updates.beforeunload` raised a native
1638	* "Leave site?" prompt, and leaving landed on a delete
1639	* confirmation screen for a plugin whose files the AJAX call
1640	* had just removed — an empty "You are about to remove:" list.
1641	*/
1642	if (
1643	link.classList.contains( 'install-now' ) \|\|
1644	link.classList.contains( 'update-link' ) \|\|
1645	link.classList.contains( 'update-now' ) \|\|
1646	link.classList.contains( 'delete-plugin' ) \|\|
1647	link.classList.contains( 'delete-theme' ) \|\|
1648	link.classList.contains( 'install-theme' ) \|\|
1649	( link.classList.contains( 'delete' ) &&
1650	( link.closest( '[data-plugin]' ) \|\|
1651	( document.body.classList.contains( 'themes-php' ) &&
1652	document.body.classList.contains( 'network-admin' ) ) ) )
1653	) {
1654	return;
1655	}
1656	var href = link.getAttribute( 'href' );
1657	var kind = classifyLink( href, window.location.href );
1658	if ( kind === 'admin' ) {
1659	var rewritten = rewriteAdminUrl( href, window.location.href );
1660	if ( rewritten ) {
1661	link.setAttribute( 'href', rewritten );
1662	}
1663	/*
1664	* Hand admin-internal navigation to the parent shell.
1665	*
1666	* The parent decides what to do with each click:
1667	*
1668	* - Native-window remap hits (e.g. `edit.php` while the
1669	* user has the native Posts opt-in on) → parent opens
1670	* the native window and closes THIS iframe.
1671	* - Same-page nav (pagination, filtering on the same
1672	* `edit.php?post_type=page` screen, etc.) → parent
1673	* drives the iframe's `location.assign()` so the
1674	* in-place navigation matches the user's intent.
1675	* - Cross-page nav (e.g. clicking "Posts" from inside
1676	* the Pages window) → parent opens a new window for
1677	* the destination and leaves THIS iframe untouched,
1678	* so the user keeps both contexts.
1679	*
1680	* We `preventDefault()` so the iframe never starts a
1681	* navigation the parent might want to suppress; otherwise
1682	* cross-page clicks would trash the source window before
1683	* the parent had a chance to react. Modifier-key clicks
1684	* (cmd/ctrl/shift/alt, middle-click) are already filtered
1685	* upstream so the browser's native "open in new tab" path
1686	* still works.
1687	*/
1688	e.preventDefault();
1689	try {
1690	var absolute = new URL( rewritten \|\| href, window.location.href ).toString();
1691	/*
1692	* Ship the link's visible text along with the URL so
1693	* the parent can title a freshly-opened window with
1694	* something the user recognises ("Scheduler") instead
1695	* of the URL slug ("tools-php-page-scheduler") when
1696	* the destination has no dock tile to copy a title
1697	* from. The iframe itself never auto-emits a
1698	* title-change, so without this hint the slug-as-
1699	* title fallback would persist for the lifetime of
1700	* the new window.
1701	*/
1702	var adminLabel = visibleLinkText( link ) \|\|
1703	link.getAttribute( 'title' ) \|\|
1704	link.getAttribute( 'aria-label' ) \|\|
1705	'';
1706	window.parent.postMessage(
1707	{
1708	type: 'os-iframe-admin-link',
1709	url: absolute,
1710	label: adminLabel.slice( 0, 80 ),
1711	/*
1712	* The link asked for a new browsing context, so
1713	* the parent must give the destination its own
1714	* window rather than driving this one. Without
1715	* the flag it would still be free to pick an
1716	* in-place branch — the destructive-action one
1717	* fires on slug mismatch, which is exactly the
1718	* shape a `_blank` reaches us with.
1719	*/
1720	newContext: newContext
1721	},
1722	window.location.origin
1723	);
1724	} catch ( bridgeErr ) {
1725	/* Same-origin postMessage to the same window can only fail in
1726	* a sandbox we don't support — swallow rather than block the
1727	* click. */
1728	}
1729	return;
1730	}
1731	if ( kind === 'external' ) {
1732	/*
1733	* External navigation inside an admin iframe would leave
1734	* the user stranded in a chrome-free version of whatever
1735	* site the link points at. Escalate to the parent shell
1736	* so it opens the URL as a closeable sub-tab (with a
1737	* detach button) alongside the admin tab — the user
1738	* stays inside the desktop shell.
1739	*
1740	* Resolving the href against the document base gives the
1741	* parent an absolute URL it doesn't have to re-resolve.
1742	*/
1743	e.preventDefault();
1744	var absolute;
1745	try {
1746	absolute = new URL( href, window.location.href ).toString();
1747	} catch ( err ) {
1748	return;
1749	}
1750	var label = visibleLinkText( link ) \|\|
1751	link.getAttribute( 'title' ) \|\|
1752	absolute;
1753	window.parent.postMessage(
1754	{
1755	type: 'os-external-link',
1756	url: absolute,
1757	label: label.slice( 0, 80 )
1758	},
1759	window.location.origin
1760	);
1761	}
1762	}, true );
1763
1764	document.addEventListener( 'submit', function ( e ) {
1765	var form = e.target;
1766	if ( ! form \|\| form.tagName !== 'FORM' ) {
1767	return;
1768	}
1769	var action = form.getAttribute( 'action' );
1770	var rewritten = rewriteAdminUrl( action \|\| window.location.href, window.location.href );
1771	if ( rewritten ) {
1772	form.setAttribute( 'action', rewritten );
1773	}
1774	}, true );
1775
1776	/*
1777	* Focus-request bridge.
1778	*
1779	* Clicks inside an iframe don't cross the browsing-context
1780	* boundary — the parent shell's pointerdown / focusin listeners
1781	* never see them, so without this hook the only way to focus an
1782	* iframe window would be clicking its title bar chrome. Post a
1783	* `os-focus-request` message on every pointerdown; the
1784	* parent Window class treats it as an onFocusRequest. Capture
1785	* phase so the signal fires before any stopPropagation inside
1786	* a page's own handlers.
1787	*/
1788	function postFocusRequest() {
1789	try {
1790	window.parent.postMessage(
1791	{ type: 'os-focus-request' },
1792	window.location.origin
1793	);
1794	} catch ( err ) {
1795	/* cross-origin parent (shouldn't happen for chromeless
1796	* pages, but don't let a throw break the bridge) */
1797	}
1798	}
1799
1800	document.addEventListener( 'pointerdown', postFocusRequest, true );
1801
1802	/*
1803	* Nested-frame focus escalation.
1804	*
1805	* The document-level listener above never hears clicks inside
1806	* NESTED iframes: Gutenberg renders the post canvas in one
1807	* (`editor-canvas`, srcdoc → same-origin), and TinyMCE's visual
1808	* mode uses `#content_ifr`. Without this hook, clicking into the
1809	* canvas of an unfocused editor window is swallowed — only the
1810	* toolbar/sidebar (outer document) would focus the window.
1811	* Attach the same escalation inside every same-origin nested
1812	* frame: on load (each navigation creates a fresh document) and
1813	* as frames mount (Gutenberg creates the canvas asynchronously
1814	* and re-creates it, e.g. on device-preview switches).
1815	*
1816	* The observer walks only each record's `addedNodes` — the same
1817	* shape as the component-sniffer observer at the top of this
1818	* file, and for the same reason. Re-querying the whole document
1819	* per mutation batch would put an O(DOM) tree walk on Gutenberg's
1820	* typing path, which is precisely when the editor mutates hardest
1821	* (and precisely when the editor-preview pairing is live). A
1822	* frame that was never inserted cannot need hooking, so the
1823	* narrow sweep loses nothing. The WeakSets keep it idempotent
1824	* when a subtree is moved rather than created.
1825	*/
1826	var hookedFrameDocs = new WeakSet();
1827	var hookedFrameEls = new WeakSet();
1828
1829	function hookNestedFrameDoc( frame ) {
1830	var doc;
1831	try {
1832	doc = frame.contentDocument;
1833	} catch ( err ) {
1834	return; /* cross-origin frame — unreachable, skip */
1835	}
1836	if ( ! doc \|\| hookedFrameDocs.has( doc ) ) {
1837	return;
1838	}
1839	hookedFrameDocs.add( doc );
1840	doc.addEventListener( 'pointerdown', postFocusRequest, true );
1841	}
1842
1843	function hookNestedFrame( frame ) {
1844	if ( ! hookedFrameEls.has( frame ) ) {
1845	hookedFrameEls.add( frame );
1846	frame.addEventListener( 'load', function ( ev ) {
1847	hookNestedFrameDoc( ev.target );
1848	} );
1849	}
1850	hookNestedFrameDoc( frame );
1851	}
1852
1853	/*
1854	* Hook every iframe at or below `root`. `root` is the document on
1855	* the initial sweep and a freshly-added node thereafter, so the
1856	* walk stays proportional to what actually changed.
1857	*/
1858	function hookNestedFrames( root ) {
1859	if ( ! root \|\| ( 1 !== root.nodeType && 9 !== root.nodeType ) ) {
1860	return; /* text / comment node — nothing to walk */
1861	}
1862	if ( 'IFRAME' === root.nodeName ) {
1863	hookNestedFrame( root );
1864	}
1865	var frames = root.querySelectorAll( 'iframe' );
1866	for ( var i = 0; i < frames.length; i++ ) {
1867	hookNestedFrame( frames[ i ] );
1868	}
1869	}
1870
1871	hookNestedFrames( document );
1872	if ( window.MutationObserver ) {
1873	new MutationObserver( function ( records ) {
1874	for ( var r = 0; r < records.length; r++ ) {
1875	var added = records[ r ].addedNodes;
1876	for ( var n = 0; n < added.length; n++ ) {
1877	hookNestedFrames( added[ n ] );
1878	}
1879	}
1880	} ).observe(
1881	document.documentElement,
1882	{ childList: true, subtree: true }
1883	);
1884	}
1885
1886	/*
1887	* OS-file drop forwarder. When the user drags a file from the
1888	* host OS into a chromeless admin iframe, intercept the drop
1889	* before the browser's default "navigate the iframe to the
1890	* file" handler fires, and `postMessage` the raw `File[]` up
1891	* to the parent shell so the OS-file drop manager
1892	* (`src/os-file-drop/manager.ts`) can show the upload dialog.
1893	*
1894	* Same-origin postMessage preserves `File` identity — the
1895	* parent receives real `File` objects, no base64 round-trip.
1896	*
1897	* We only intercept drops whose `DataTransfer.types` includes
1898	* `'Files'`. In-page DnD (Gutenberg block reorders, media
1899	* library drags) carries non-`Files` types and passes through
1900	* untouched.
1901	*/
1902	function bridgeHasFiles( ev ) {
1903	var t = ev && ev.dataTransfer && ev.dataTransfer.types;
1904	if ( ! t ) {
1905	return false;
1906	}
1907	if ( typeof t.includes === 'function' ) {
1908	return t.includes( 'Files' );
1909	}
1910	if ( typeof t.contains === 'function' ) {
1911	return t.contains( 'Files' );
1912	}
1913	for ( var i = 0; i < t.length; i++ ) {
1914	if ( t[ i ] === 'Files' ) {
1915	return true;
1916	}
1917	}
1918	return false;
1919	}
1920	/*
1921	* Selectors of in-iframe drop receivers we leave alone —
1922	* Gutenberg's drop zone, the legacy media uploader, any
1923	* element a plugin marks with `data-drop-zone`. The whole
1924	* point: file drops onto Gutenberg blocks keep firing
1925	* Gutenberg's handler; only drops on the empty page
1926	* background escalate to the shell.
1927	*/
1928	var bridgeDropPassthroughSelectors = [
1929	'.components-drop-zone',
1930	'[data-drop-zone]',
1931	'.uploader-window',
1932	'.media-frame-content'
1933	];
1934	function bridgeDropTargetWantsFile( target ) {
1935	if ( ! target \|\| ! target.closest ) {
1936	return false;
1937	}
1938	for ( var s = 0; s < bridgeDropPassthroughSelectors.length; s++ ) {
1939	if ( target.closest( bridgeDropPassthroughSelectors[ s ] ) ) {
1940	return true;
1941	}
1942	}
1943	return false;
1944	}
1945	/*
1946	* Bubble phase (not capture): the inner-most handler — Gutenberg's
1947	* drop zone, the legacy media uploader, or a third-party plugin
1948	* like "Administrador de archivos WP" — runs FIRST and gets the
1949	* chance to call `preventDefault()` to claim the drop. Our
1950	* forwarder then runs LAST at the document level and yields to
1951	* anyone who already took ownership.
1952	*
1953	* Two bail conditions, in order:
1954	* 1. `bridgeDropTargetWantsFile()` — the curated allowlist
1955	* (Gutenberg, wp.media, anything tagged `[data-drop-zone]`).
1956	* Kept as the primary check so the well-known core surfaces
1957	* behave identically to before, even if some edge case skips
1958	* the `preventDefault()` step.
1959	* 2. `ev.defaultPrevented` — the universal HTML5 contract: any
1960	* drop zone willing to receive a file calls `preventDefault()`
1961	* on `dragover` (mandatory per spec) and `drop` (to suppress
1962	* the browser's default navigate-to-file). When that's true,
1963	* some inner handler has taken the drop — yield so plugins
1964	* outside the allowlist (WP File Manager, Yoast, etc.) keep
1965	* their native UX.
1966	*/
1967	document.addEventListener( 'dragover', function ( ev ) {
1968	if ( ! bridgeHasFiles( ev ) ) {
1969	return;
1970	}
1971	if ( bridgeDropTargetWantsFile( ev.target ) ) {
1972	return;
1973	}
1974	if ( ev.defaultPrevented ) {
1975	return;
1976	}
1977	ev.preventDefault();
1978	if ( ev.dataTransfer ) {
1979	ev.dataTransfer.dropEffect = 'copy';
1980	}
1981	}, false );
1982	document.addEventListener( 'drop', function ( ev ) {
1983	if ( ! bridgeHasFiles( ev ) ) {
1984	return;
1985	}
1986	if ( bridgeDropTargetWantsFile( ev.target ) ) {
1987	return;
1988	}
1989	if ( ev.defaultPrevented ) {
1990	return;
1991	}
1992	ev.preventDefault();
1993	ev.stopPropagation();
1994	var files = [];
1995	if ( ev.dataTransfer && ev.dataTransfer.files ) {
1996	for ( var i = 0; i < ev.dataTransfer.files.length; i++ ) {
1997	files.push( ev.dataTransfer.files[ i ] );
1998	}
1999	}
2000	if ( files.length === 0 ) {
2001	return;
2002	}
2003	try {
2004	window.parent.postMessage(
2005	{
2006	type: 'os-file-drop',
2007	files: files,
2008	x: ev.clientX,
2009	y: ev.clientY,
2010	},
2011	window.location.origin
2012	);
2013	} catch ( err ) { /* cross-origin parent; swallow */ }
2014	}, false );
2015
2016	/*
2017	* Drag-hover forwarder. Native drag events don't cross iframe
2018	* boundaries, so when the user holds ANY drag (an OS file, an
2019	* image lifted off another admin page, a text selection) over
2020	* this window, the parent shell has no idea the window is being
2021	* hovered. Forward a throttled, payload-free heartbeat so the
2022	* shell's focus-on-drag-hover module
2023	* (`src/drag/focus-window-on-drag-hover.ts`) can raise this
2024	* window after its dwell. Purely observational — no
2025	* `preventDefault()`, no interference with in-page drop zones.
2026	* The parent identifies the hovered window from the message
2027	* source, so no coordinates travel.
2028	*
2029	* Sentinel-guarded: the standalone bridge bundle
2030	* (`iframe-bridge-standalone.ts`) installs the same forwarder,
2031	* and unlike the drop forwarder above there is no
2032	* `defaultPrevented` handshake to dedupe a double install.
2033	*/
2034	if ( ! window.__openStationDragHoverForwarderInstalled ) {
2035	window.__openStationDragHoverForwarderInstalled = true;
2036	var dragHoverLastSent = 0;
2037	document.addEventListener( 'dragover', function ( ev ) {
2038	var now = Date.now();
2039	if ( now - dragHoverLastSent < 150 ) {
2040	return;
2041	}
2042	dragHoverLastSent = now;
2043	try {
2044	window.parent.postMessage(
2045	{
2046	type: 'os-drag-hover',
2047	payloadType: bridgeHasFiles( ev ) ? 'os-file' : 'external',
2048	},
2049	window.location.origin
2050	);
2051	} catch ( err ) { /* cross-origin parent; swallow */ }
2052	}, true );
2053	}
2054
2055	/*
2056	* Pointer forwarder — OPT-IN, off by default.
2057	*
2058	* Pointer events don't cross iframe boundaries, so the parent
2059	* shell goes blind to the cursor the moment it enters a window.
2060	* Anything in the shell that needs to know where the mouse
2061	* actually is while it's over window content — today, the
2062	* Mio's gaze (`src/mio/pointer.ts`) — gets a throttled
2063	* stream of this frame's client coordinates and rebases them
2064	* through the iframe element's own rect.
2065	*
2066	* Strictly opt-in: the parent posts
2067	* `os-pointer-track { enabled: true }` when a consumer
2068	* starts, and `{ enabled: false }` when the last one stops. A
2069	* shell with no consumer never turns this on and pays nothing.
2070	* `os-bridge-ready` (emitted at the end of this script,
2071	* i.e. on every navigation) is the parent's cue to re-arm a
2072	* freshly-loaded frame.
2073	*
2074	* Coordinates only — no target element, no event object, nothing
2075	* about the page content. Purely observational: passive listener,
2076	* no `preventDefault()`.
2077	*
2078	* Sentinel-guarded: the standalone bridge bundle
2079	* (`iframe-bridge-standalone.ts`) installs the same forwarder.
2080	*/
2081	if ( ! window.__openStationPointerForwarderInstalled ) {
2082	window.__openStationPointerForwarderInstalled = true;
2083	var pointerTrackOn = false;
2084	var pointerLastSent = 0;
2085	window.addEventListener( 'message', function ( e ) {
2086	if ( e.origin !== window.location.origin ) return;
2087	if ( ! e.data \|\| e.data.type !== 'os-pointer-track' ) return;
2088	pointerTrackOn = !! e.data.enabled;
2089	} );
2090	document.addEventListener( 'pointermove', function ( ev ) {
2091	if ( ! pointerTrackOn ) return;
2092	var now = Date.now();
2093	// ~25 Hz. The consumer interpolates; a faster stream buys
2094	// nothing visible and costs a postMessage per mouse move.
2095	if ( now - pointerLastSent < 40 ) return;
2096	pointerLastSent = now;
2097	try {
2098	window.parent.postMessage(
2099	{
2100	type: 'os-pointer-move',
2101	x: ev.clientX,
2102	y: ev.clientY
2103	},
2104	window.location.origin
2105	);
2106	} catch ( err ) { /* cross-origin parent; swallow */ }
2107	}, { capture: true, passive: true } );
2108	}
2109
2110	/*
2111	* Cmd+K / Ctrl+K forwarder — single-press, unconditional.
2112	*
2113	* Native keydown events don't cross iframe boundaries. Inside a
2114	* chromeless admin page we want exactly ONE command palette: the
2115	* desktop shell's. WordPress's own `core/commands` palette is
2116	* harvested by `__wpdHarvestCommands` below and re-surfaced in the
2117	* shell palette, so there's no reason to ever let the in-page palette
2118	* take the keystroke.
2119	*
2120	* Capture phase + `stopImmediatePropagation` so we win the race
2121	* against Gutenberg / TinyMCE / plugin handlers bound to the same
2122	* shortcut. Shift/Alt modifiers pass through so user shortcuts using
2123	* those combos keep working.
2124	*/
2125	document.addEventListener( 'keydown', function ( e ) {
2126	if ( ! ( e.metaKey \|\| e.ctrlKey ) ) return;
2127	if ( e.key !== 'k' && e.key !== 'K' ) return;
2128	if ( e.shiftKey \|\| e.altKey ) return;
2129
2130	e.preventDefault();
2131	e.stopImmediatePropagation();
2132
2133	try {
2134	window.parent.postMessage(
2135	{ type: 'os-palette-cycle' },
2136	window.location.origin
2137	);
2138	} catch ( err ) { /* cross-origin parent; swallow */ }
2139	}, true );
2140
2141	/*
2142	* Command harvester — bridges `wp.data.select('core/commands')` to
2143	* the parent shell.
2144	*
2145	* On `os-commands-subscribe` from the parent, subscribe to
2146	* the `core/commands` store and post `os-commands-list` on
2147	* every change (de-duplicated). On `os-commands-invoke`, run
2148	* the original callback inside this iframe — the parent fires this
2149	* when the user selects a proxied command from the shell palette.
2150	*
2151	* Commands are classified by dry-invoking their callback inside a
2152	* `window.location`-intercept sandbox: pure-navigation callbacks
2153	* are flagged `navigate` (with the captured URL) so the parent can
2154	* open a new desktop window instead of navigating this iframe out
2155	* of chromeless mode. Everything else is `action` and proxies back
2156	* into this iframe on user selection.
2157	*/
2158	var __wpdCommandsSubscribed = false;
2159	var __wpdCommandsLastPayload = '';
2160	var __wpdCommandsDebounceId = null;
2161	var __wpdCommandsOrigin = window.location.origin;
2162	// Cache per command name so the `window.location`-intercept
2163	// sandbox only runs once per command. Re-classifying on every
2164	// store tick would repeatedly fire side-effectful action
2165	// callbacks (preference toggles, modal opens) — unacceptable.
2166	// Keyed by name; value is the frozen classification minus the
2167	// live `label` / `icon` (which we always re-read in case the
2168	// command updated its own metadata).
2169	var __wpdCommandsKindCache = Object.create( null );
2170
2171	function __wpdRenderIconElement( icon ) {
2172	if ( ! icon ) return '';
2173	if ( typeof icon === 'string' ) return '';
2174	if ( ! window.wp \|\| ! window.wp.element \|\| typeof window.wp.element.renderToString !== 'function' ) {
2175	return '';
2176	}
2177	try {
2178	var rendered = window.wp.element.renderToString( icon );
2179	// `@wordpress/icons` entries render as a complete `<svg>`
2180	// tag. Anything else (wrapped components, empty fragments,
2181	// strings) falls back to dashicons in the palette — we only
2182	// accept markup we can inject straight into the icon slot.
2183	if ( typeof rendered === 'string' && rendered.toLowerCase().indexOf( '<svg' ) === 0 ) {
2184	return rendered;
2185	}
2186	} catch ( _err ) { /* swallow */ }
2187	return '';
2188	}
2189
2190	function __wpdClassifyCommand( cmd ) {
2191	// Defensive defaults — a broken registry should not tank the bridge.
2192	var out = {
2193	name: String( cmd && cmd.name ? cmd.name : '' ),
2194	label: String( cmd && cmd.label ? cmd.label : '' ),
2195	icon: cmd && cmd.icon && typeof cmd.icon === 'string' ? cmd.icon : undefined,
2196	iconSvg: undefined,
2197	context: cmd && cmd.context ? String( cmd.context ) : undefined,
2198	kind: 'action',
2199	url: undefined
2200	};
2201	if ( ! cmd \|\| typeof cmd.callback !== 'function' ) {
2202	return out;
2203	}
2204
2205	// Short-circuit on cached classifications — `renderToString` on
2206	// the React icon is expensive, and the static URL regex scan
2207	// on `callback.toString()` is pure CPU we've already paid once.
2208	var cached = __wpdCommandsKindCache[ out.name ];
2209	if ( cached ) {
2210	out.kind = cached.kind;
2211	out.url = cached.url;
2212	out.iconSvg = cached.iconSvg;
2213	return out;
2214	}
2215
2216	// Render the React icon once per command name — Gutenberg
2217	// commands ship `icon` as a `@wordpress/icons` React element
2218	// the postMessage bridge can't serialize, so we flatten it to
2219	// a static SVG string here.
2220	if ( cmd.icon && typeof cmd.icon !== 'string' ) {
2221	out.iconSvg = __wpdRenderIconElement( cmd.icon );
2222	}
2223
2224	// STATIC classification — read the callback's source text and
2225	// look for a string-literal navigation target. We deliberately
2226	// do NOT execute the callback. An earlier iteration tried a
2227	// dry-run with a `window.location` intercept sandbox, but
2228	// `Location.prototype.href` is non-configurable: the shim
2229	// silently failed, every nav callback actually navigated the
2230	// iframe, the new page re-harvested, and the cascade opened
2231	// windows forever.
2232	//
2233	// Cases caught (WP's @wordpress/core-commands callbacks are
2234	// all of this shape):
2235	// document.location.href = 'url'
2236	// window.location.href = "url"
2237	// location.href = `url`
2238	// location.assign( 'url' )
2239	// location.replace( 'url' )
2240	//
2241	// Computed URLs (template-literal interpolation, addQueryArgs
2242	// calls, variables) fall back to `action` — the user picking
2243	// them will still run the real callback inside the iframe,
2244	// which is the safe default.
2245	var src = '';
2246	try { src = Function.prototype.toString.call( cmd.callback ); } catch ( _err ) { src = ''; }
2247	var navRe = /(?:document\.location\.href\|window\.location\.href\|location\.href)\s=\s['"]([^'"$]+?)['"]/;
2248	var asgRe = /location\.(?:assign\|replace)\s$\s['"]([^'"$]+?)['"]\s*$/;
2249	var mm = src.match( navRe ) \|\| src.match( asgRe );
2250	if ( mm && mm[ 1 ] ) {
2251	try {
2252	out.url = new URL( mm[ 1 ], window.location.href ).toString();
2253	out.kind = 'navigate';
2254	} catch ( _err ) {
2255	out.kind = 'action';
2256	}
2257	}
2258	__wpdCommandsKindCache[ out.name ] = { kind: out.kind, url: out.url, iconSvg: out.iconSvg };
2259	return out;
2260	}
2261
2262	// Harvested commands accumulate here. The React harvester writes
2263	// the full list each render; `__wpdPostCommandsList` reads + posts.
2264	var __wpdLastRawCommands = [];
2265	// Name → live `callback` reference. Loader-returned commands are
2266	// NOT in `wp.data.select('core/commands').getCommands()` — the
2267	// store only exposes statically-registered entries. Without a
2268	// private cache keyed off the React harvester's most recent render,
2269	// invoking a loader command from the parent palette ("Duplicate
2270	// block", "Transform to...", pattern commands) would silently fall
2271	// through to the `getCommands()` lookup and no-op.
2272	var __wpdCommandCallbacks = Object.create( null );
2273
2274	function __wpdFinalizeCommands( raw ) {
2275	var seen = Object.create( null );
2276	var out = [];
2277	var skipped = { missing: 0, disabled: 0, dup: 0 };
2278	for ( var i = 0; i < raw.length; i++ ) {
2279	var cmd = raw[ i ];
2280	if ( ! cmd \|\| ! cmd.name \|\| ! cmd.label ) { skipped.missing++; continue; }
2281	if ( cmd.disabled ) { skipped.disabled++; continue; }
2282	if ( seen[ cmd.name ] ) { skipped.dup++; continue; }
2283	seen[ cmd.name ] = true;
2284	out.push( __wpdClassifyCommand( cmd ) );
2285	}
2286	return out;
2287	}
2288
2289	function __wpdHarvestCommands() {
2290	return __wpdFinalizeCommands( __wpdLastRawCommands );
2291	}
2292
2293	// React-mounted harvester. Block-level / editor-contextual commands
2294	// (tier 3 loaders like `core/block-editor/selected-block-commands`,
2295	// `core/edit-post/pattern-commands`) are React hooks — they call
2296	// `useSelect` internally, which only works inside a function-
2297	// component render. So we mount an invisible React tree whose
2298	// children invoke each loader's hook at render time. On every
2299	// re-render (block selection changes, entity edits, welcome guide
2300	// toggled) the effect re-posts the fresh command list to the
2301	// parent. One component per loader keeps the rules-of-hooks
2302	// contract — the hook count inside each `LoaderSlot` is fixed at
2303	// one call (plus the constant `useEffect`), so React's reconciler
2304	// is happy.
2305	var __wpdReactMounted = false;
2306	// Stashed so `__wpdUnsubscribeCommands` can tear the harvester
2307	// down when focus leaves the window — otherwise the component
2308	// keeps re-rendering on every store tick, calling `mergeAndPost`,
2309	// and posting command lists the parent drops on the floor.
2310	var __wpdReactRoot = null;
2311	var __wpdReactHost = null;
2312
2313	function __wpdMountReactHarvester() {
2314	if ( __wpdReactMounted ) return;
2315	if ( ! window.wp \|\| ! window.wp.element \|\| ! window.wp.data ) {
2316	return;
2317	}
2318	var el = window.wp.element;
2319	var createEl = el.createElement;
2320	var useEffect = el.useEffect;
2321	var useRef = el.useRef;
2322	var useMemo = el.useMemo;
2323	var useSelect = ( window.wp.data && window.wp.data.useSelect ) \|\| null;
2324	if ( ! createEl \|\| ! useSelect \|\| ! el.createRoot \|\| ! useRef ) {
2325	return;
2326	}
2327	__wpdReactMounted = true;
2328
2329	// Hidden mount point. Positioned off-screen + `aria-hidden` so
2330	// nothing the harvester renders (it renders null anyway) can
2331	// leak into the accessibility tree or the visible document.
2332	var host = document.createElement( 'div' );
2333	host.setAttribute( 'aria-hidden', 'true' );
2334	host.style.cssText = 'position:absolute;width:0;height:0;overflow:hidden;pointer-events:none;left:-9999px;top:-9999px;';
2335	( document.body \|\| document.documentElement ).appendChild( host );
2336	__wpdReactHost = host;
2337
2338	// Shared mutable bucket — ref-based aggregation to avoid the
2339	// classic setState-inside-useEffect loop. A `setState` here
2340	// would fire a parent re-render, which would fire the loader
2341	// hook again, which returns a fresh commands array with a new
2342	// reference even when the contents are identical, which would
2343	// re-fire the effect and setState again → Maximum update
2344	// depth exceeded. Refs don't trigger renders, so the loop is
2345	// broken even when hooks churn references.
2346	var resultsBucket = { perLoader: {}, statics: [], loadersList: [] };
2347
2348	function commandsFingerprint( cmds ) {
2349	if ( ! Array.isArray( cmds ) \|\| cmds.length === 0 ) return '';
2350	// Cheap identity — name count is enough to decide whether
2351	// to re-post. Accepts some false negatives (two different
2352	// commands sharing a name) we'll never hit in practice.
2353	var keys = new Array( cmds.length );
2354	for ( var i = 0; i < cmds.length; i++ ) {
2355	var c = cmds[ i ];
2356	keys[ i ] = c && c.name ? c.name : '';
2357	}
2358	return keys.join( '\|' );
2359	}
2360
2361	function mergeAndPost() {
2362	var merged = [];
2363	var loadersList = resultsBucket.loadersList;
2364	if ( Array.isArray( loadersList ) ) {
2365	for ( var i = 0; i < loadersList.length; i++ ) {
2366	var bucket = resultsBucket.perLoader[ loadersList[ i ] ];
2367	if ( Array.isArray( bucket ) ) merged = merged.concat( bucket );
2368	}
2369	}
2370	if ( Array.isArray( resultsBucket.statics ) ) {
2371	merged = merged.concat( resultsBucket.statics );
2372	}
2373	// Refresh the callback cache off the SAME snapshot we're
2374	// about to post. Loader-returned commands close over React
2375	// state (selected block, edited entity, etc.) that's only
2376	// valid for this render pass, so rebuilding from scratch
2377	// every merge keeps invoke-from-parent honest instead of
2378	// calling a stale closure.
2379	__wpdCommandCallbacks = Object.create( null );
2380	for ( var j = 0; j < merged.length; j++ ) {
2381	var cc = merged[ j ];
2382	if ( cc && cc.name && typeof cc.callback === 'function' ) {
2383	__wpdCommandCallbacks[ cc.name ] = cc.callback;
2384	}
2385	}
2386	__wpdLastRawCommands = merged;
2387	__wpdSchedulePost();
2388	}
2389
2390	// One slot per loader. Calls the loader's hook at render time;
2391	// an effect keyed on the commands' name-fingerprint writes the
2392	// fresh list into the shared bucket and posts. Ref-based, no
2393	// setState → no re-render cascade.
2394	function LoaderSlot( props ) {
2395	var loader = props.loader;
2396	var result = null;
2397	try {
2398	result = loader.hook( { search: '' } );
2399	} catch ( _err ) {
2400	/* swallow — a buggy loader hook shouldn't take the harvester down */
2401	}
2402	var cmds = ( result && Array.isArray( result.commands ) ) ? result.commands : [];
2403	var key = useMemo( function () { return commandsFingerprint( cmds ); }, [ cmds ] );
2404
2405	useEffect( function () {
2406	resultsBucket.perLoader[ loader.name ] = cmds;
2407	mergeAndPost();
2408	}, [ key ] );
2409
2410	useEffect( function () {
2411	return function () {
2412	delete resultsBucket.perLoader[ loader.name ];
2413	mergeAndPost();
2414	};
2415	}, [] );
2416
2417	return null;
2418	}
2419
2420	function Harvester() {
2421	var loaders = useSelect( function ( s ) {
2422	var ss = s( 'core/commands' );
2423	return ( ss && typeof ss.getCommandLoaders === 'function' )
2424	? ss.getCommandLoaders( true )
2425	: [];
2426	}, [] );
2427	var staticCmds = useSelect( function ( s ) {
2428	var ss = s( 'core/commands' );
2429	return ( ss && typeof ss.getCommands === 'function' )
2430	? ss.getCommands( true )
2431	: [];
2432	}, [] );
2433
2434	// Track the loader-name ordering so `mergeAndPost` can emit
2435	// tier-3 in a deterministic order (React reconciliation
2436	// order = registration order = the order the user sees).
2437	var loadersNames = useMemo( function () {
2438	if ( ! Array.isArray( loaders ) ) return [];
2439	return loaders.map( function ( l ) { return l ? l.name : ''; } );
2440	}, [ loaders ] );
2441	var loadersKey = loadersNames.join( '\|' );
2442	useEffect( function () {
2443	resultsBucket.loadersList = loadersNames;
2444	mergeAndPost();
2445	}, [ loadersKey ] );
2446
2447	var staticKey = useMemo( function () { return commandsFingerprint( staticCmds ); }, [ staticCmds ] );
2448	useEffect( function () {
2449	resultsBucket.statics = Array.isArray( staticCmds ) ? staticCmds : [];
2450	mergeAndPost();
2451	}, [ staticKey ] );
2452
2453	if ( ! Array.isArray( loaders ) \|\| loaders.length === 0 ) {
2454	return null;
2455	}
2456	var children = [];
2457	for ( var i = 0; i < loaders.length; i++ ) {
2458	var loader = loaders[ i ];
2459	if ( ! loader \|\| typeof loader.hook !== 'function' ) continue;
2460	children.push( createEl( LoaderSlot, {
2461	key: loader.name,
2462	loader: loader
2463	} ) );
2464	}
2465	return createEl( el.Fragment \|\| 'div', null, children );
2466	}
2467
2468	try {
2469	var root = el.createRoot( host );
2470	__wpdReactRoot = root;
2471	root.render( createEl( Harvester ) );
2472	} catch ( err ) {
2473	__wpdReactMounted = false;
2474	__wpdReactRoot = null;
2475	if ( __wpdReactHost && __wpdReactHost.parentNode ) {
2476	__wpdReactHost.parentNode.removeChild( __wpdReactHost );
2477	}
2478	__wpdReactHost = null;
2479	}
2480	}
2481
2482	function __wpdUnmountReactHarvester() {
2483	if ( __wpdReactRoot ) {
2484	try { __wpdReactRoot.unmount(); } catch ( _err ) { /* swallow */ }
2485	}
2486	__wpdReactRoot = null;
2487	if ( __wpdReactHost && __wpdReactHost.parentNode ) {
2488	__wpdReactHost.parentNode.removeChild( __wpdReactHost );
2489	}
2490	__wpdReactHost = null;
2491	__wpdReactMounted = false;
2492	__wpdLastRawCommands = [];
2493	__wpdCommandCallbacks = Object.create( null );
2494	}
2495
2496	function __wpdPostCommandsList() {
2497	var list = __wpdHarvestCommands();
2498	// Cheap de-dupe — the store fires on every unrelated preference
2499	// change too, and shipping an identical payload is pure noise.
2500	// Fingerprint on `name\|kind\|url` keeps us sensitive to the
2501	// visible surface (name changes, navigate-vs-action flips,
2502	// destination URL changes) while skipping `JSON.stringify` of
2503	// the entire payload — label/icon churn inside a single command
2504	// is rare and re-shipping on it is harmless noise vs. a hot
2505	// path allocation cost.
2506	var key = '';
2507	for ( var k = 0; k < list.length; k++ ) {
2508	var lc = list[ k ];
2509	key += ( lc && lc.name ? lc.name : '' ) + '\|'
2510	+ ( lc && lc.kind ? lc.kind : '' ) + '\|'
2511	+ ( lc && lc.url ? lc.url : '' ) + '\n';
2512	}
2513	if ( key === __wpdCommandsLastPayload ) {
2514	return;
2515	}
2516	__wpdCommandsLastPayload = key;
2517	try {
2518	window.parent.postMessage(
2519	{ type: 'os-commands-list', commands: list },
2520	__wpdCommandsOrigin
2521	);
2522	} catch ( _err ) {
2523	/* cross-origin parent (shouldn't happen for chromeless pages, but
2524	* don't let a throw break the bridge) */
2525	}
2526	}
2527
2528	function __wpdSchedulePost() {
2529	if ( __wpdCommandsDebounceId !== null ) return;
2530	__wpdCommandsDebounceId = window.setTimeout( function () {
2531	__wpdCommandsDebounceId = null;
2532	__wpdPostCommandsList();
2533	}, 60 );
2534	}
2535
2536	function __wpdSubscribeCommands() {
2537	__wpdCommandsSubscribed = true;
2538
2539	// If the React harvester is already running (focus left and
2540	// came back), the bucket still holds the latest merged list.
2541	// Reset the dedupe key so the next post actually ships, then
2542	// schedule it. The harvester itself won't re-fire its effects
2543	// just because the parent re-subscribed — React only reacts to
2544	// store changes, and the store hasn't changed. We have to
2545	// push from here.
2546	if ( __wpdReactMounted ) {
2547	__wpdCommandsLastPayload = '';
2548	__wpdSchedulePost();
2549	return;
2550	}
2551
2552	var attempts = 0;
2553	function tryBind() {
2554	if ( ! __wpdCommandsSubscribed ) return;
2555	if ( ! window.wp \|\| ! window.wp.data \|\| typeof window.wp.data.subscribe !== 'function' ) {
2556	if ( attempts++ < 40 ) {
2557	window.setTimeout( tryBind, 150 );
2558	}
2559	return;
2560	}
2561	// Mount the React harvester — tier 3 loaders are hooks and
2562	// need a legal render context to execute. On every re-render
2563	// the component's effect calls `__wpdSchedulePost` with the
2564	// fresh merged list, so we don't need a separate
2565	// `wp.data.subscribe` callback.
2566	__wpdMountReactHarvester();
2567	}
2568	tryBind();
2569	}
2570
2571	function __wpdUnsubscribeCommands() {
2572	__wpdCommandsSubscribed = false;
2573	__wpdCommandsLastPayload = '';
2574	if ( __wpdCommandsDebounceId !== null ) {
2575	try { window.clearTimeout( __wpdCommandsDebounceId ); } catch ( _err ) { /* swallow */ }
2576	__wpdCommandsDebounceId = null;
2577	}
2578	// Fully tear down the React harvester. Keeping it mounted in
2579	// the background wastes CPU: every store tick re-renders the
2580	// loader hooks, which rebuild the callback cache and post to
2581	// the parent (who drops the message because this window isn't
2582	// the subscribed one). On re-subscribe we remount from scratch.
2583	__wpdUnmountReactHarvester();
2584	}
2585
2586	function __wpdInvokeCommand( name ) {
2587	// Primary lookup — the React harvester's latest snapshot. This
2588	// covers loader-returned commands (Duplicate block, Transform
2589	// to, pattern commands) that never appear in the static
2590	// `getCommands()` list.
2591	var cb = __wpdCommandCallbacks[ name ];
2592	if ( typeof cb === 'function' ) {
2593	try {
2594	cb( { close: function () {} } );
2595	} catch ( _err ) {
2596	/* swallow — a plugin command callback that throws shouldn't break the bridge */
2597	}
2598	return;
2599	}
2600	// Fallback — statically registered commands that never passed
2601	// through the harvester (registered after the last render).
2602	if ( ! window.wp \|\| ! window.wp.data ) {
2603	return;
2604	}
2605	var sel = null;
2606	try { sel = window.wp.data.select( 'core/commands' ); } catch ( _err ) { return; }
2607	if ( ! sel \|\| typeof sel.getCommands !== 'function' ) return;
2608	var raw;
2609	try { raw = sel.getCommands(); } catch ( _err ) { return; }
2610	if ( ! raw ) return;
2611	for ( var i = 0; i < raw.length; i++ ) {
2612	if ( raw[ i ] && raw[ i ].name === name && typeof raw[ i ].callback === 'function' ) {
2613	try {
2614	raw[ i ].callback( { close: function () {} } );
2615	} catch ( _err ) {
2616	/* swallow — see note in primary path above */
2617	}
2618	return;
2619	}
2620	}
2621	}
2622
2623	// Attach the listener BEFORE the bridge-ready ping so a subscribe
2624	// posted synchronously in response is guaranteed to land.
2625	window.addEventListener( 'message', function ( e ) {
2626	if ( e.origin !== __wpdCommandsOrigin ) return;
2627	if ( ! e.data \|\| typeof e.data.type !== 'string' ) return;
2628	if ( e.data.type === 'os-commands-subscribe' ) {
2629	__wpdSubscribeCommands();
2630	} else if ( e.data.type === 'os-commands-unsubscribe' ) {
2631	__wpdUnsubscribeCommands();
2632	} else if ( e.data.type === 'os-commands-invoke' && typeof e.data.name === 'string' ) {
2633	__wpdInvokeCommand( e.data.name );
2634	}
2635	} );
2636
2637	// Handshake: tell the parent we're ready so it can (re)send any
2638	// subscribe that was dispatched before this listener attached.
2639	// Without this ping, a subscribe posted during iframe navigation
2640	// arrives at a context whose message listener isn't installed yet
2641	// and is silently dropped — the symptom is an empty palette even
2642	// though `wp.data.select('core/commands')` is perfectly happy.
2643	try {
2644	window.parent.postMessage(
2645	{ type: 'os-bridge-ready' },
2646	__wpdCommandsOrigin
2647	);
2648	} catch ( _err ) {
2649	/* parent gone or cross-origin — bridge handshake will retry on next load */
2650	}
2651
2652	/*
2653	* Background heartbeat throttle.
2654	*
2655	* Every chromeless iframe is a complete wp-admin page running
2656	* Core's Heartbeat — 15 s in the post editor (post locking). A
2657	* desktop with several windows open therefore fires several
2658	* admin-ajax heartbeats a minute from windows the user isn't even
2659	* looking at, and every one of them boots the whole plugin stack
2660	* server-side. Core only slows Heartbeat when the browser TAB is
2661	* hidden; a background desktop window is still a visible iframe,
2662	* so that built-in backoff never engages.
2663	*
2664	* The parent shell posts `os-window-active` on window focus and
2665	* blur (`src/window-activity-notifier.ts`). On blur we stretch the
2666	* interval to Heartbeat's 120 s maximum; on focus we restore the
2667	* saved cadence. Post locks stay safe: Core's lock window is 150 s,
2668	* above the slowed interval. Two guards keep this conservative:
2669	*
2670	* - Never slow an interval below 15 s — a 5 s cadence means
2671	* something urgent (auth-check retry) is in flight.
2672	* - Only restore when the interval is still the 120 s we set —
2673	* if page code re-tuned Heartbeat while backgrounded, the
2674	* throttle keeps its hands off.
2675	*/
2676	( function () {
2677	var savedInterval = null;
2678
2679	window.addEventListener( 'message', function ( e ) {
2680	if ( e.origin !== window.location.origin \|\| e.source !== window.parent ) return;
2681	var d = e && e.data;
2682	if ( ! d \|\| typeof d !== 'object' \|\| d.type !== 'os-window-active' ) return;
2683	var hb = window.wp && window.wp.heartbeat;
2684	if ( ! hb \|\| typeof hb.interval !== 'function' ) return;
2685	try {
2686	if ( d.active === false ) {
2687	var current = hb.interval();
2688	if (
2689	savedInterval === null &&
2690	typeof current === 'number' &&
2691	current >= 15 &&
2692	current < 120
2693	) {
2694	savedInterval = current;
2695	hb.interval( 120 );
2696	}
2697	} else if ( d.active === true && savedInterval !== null ) {
2698	if ( hb.interval() === 120 ) {
2699	hb.interval( savedInterval );
2700	}
2701	savedInterval = null;
2702	}
2703	} catch ( _err ) {
2704	/* heartbeat internals changed shape — leave it alone */
2705	}
2706	} );
2707	} () );
2708
2709	/*
2710	* ` / Shift+` forwarder — window switcher.
2711	*
2712	* Bare backtick with no modifier. Must skip when focus is in a
2713	* text-entry element, otherwise typing ` into a block, a text
2714	* field, or TinyMCE would steal the keystroke. Non-text inputs
2715	* (checkbox, button, select) don't accept character input, so
2716	* cycling on those is fine.
2717	*
2718	* Same iframe-crossing rationale as the Cmd+K forwarder above:
2719	* native keydown doesn't reach the parent, so we postMessage.
2720	*/
2721	document.addEventListener( 'keydown', function ( e ) {
2722	if ( e.ctrlKey \|\| e.metaKey \|\| e.altKey ) return;
2723	if ( e.code !== 'Backquote' ) return;
2724
2725	// IFRAME case catches Gutenberg: the block canvas is a nested
2726	// iframe, and Gutenberg re-dispatches cloned keydowns up to
2727	// this document for its shortcut system. Without this branch
2728	// typing ` in a block would cycle windows. Any other nested
2729	// iframe owning keyboard handling gets the same treatment.
2730	var el = document.activeElement;
2731	if ( el ) {
2732	var tag = el.tagName;
2733	if ( tag === 'IFRAME' ) return;
2734	if ( tag === 'TEXTAREA' ) return;
2735	if ( tag === 'INPUT' ) {
2736	var type = ( el.type \|\| '' ).toLowerCase();
2737	var textTypes = [
2738	'text', 'search', 'url', 'email', 'password',
2739	'tel', 'number', 'date', 'datetime-local',
2740	'month', 'week', 'time'
2741	];
2742	if ( textTypes.indexOf( type ) !== -1 ) return;
2743	}
2744	if ( el.isContentEditable ) return;
2745	}
2746
2747	e.preventDefault();
2748	e.stopImmediatePropagation();
2749
2750	try {
2751	window.parent.postMessage(
2752	{
2753	type: 'os-window-switch',
2754	direction: e.shiftKey ? 'prev' : 'next'
2755	},
2756	window.location.origin
2757	);
2758	} catch ( err ) { /* cross-origin parent; swallow */ }
2759	}, true );
2760
2761	// Skip if the standalone iframe-bridge bundle already wired
2762	// screen-meta hoisting on this page. Two bridges racing to read
2763	// `aria-expanded` and reflect state would double-fire the
2764	// `os-screen-meta-state` message and flicker the
2765	// title-bar buttons.
2766	if ( window.__openStationScreenMetaInstalled ) {
2767	return;
2768	}
2769	window.__openStationScreenMetaInstalled = true;
2770
2771	// Real screen options render form controls (column toggles, a
2772	// per-page input, custom settings). An empty wrap should not
2773	// surface a dead gear button.
2774	function hasScreenOptionsContent() {
2775	var wrap = document.getElementById( 'screen-options-wrap' );
2776	// WP always renders a nonce hidden input and an "Apply" submit
2777	// inside the wrap, so match only interactive option controls
2778	// (toggles, per-page, radios, selects) — never that always-
2779	// present scaffolding — or an empty panel reads as non-empty.
2780	return !! wrap && !! wrap.querySelector( 'input:not([type="hidden"]):not([type="submit"]):not([type="button"]):not([type="reset"]), select, textarea' );
2781	}
2782	// A help tab registered with empty content + no callback still
2783	// produces #contextual-help-link but an empty panel. Require some
2784	// non-whitespace tab/sidebar text before announcing the button.
2785	function hasHelpContent() {
2786	var wrap = document.getElementById( 'contextual-help-wrap' );
2787	if ( ! wrap ) {
2788	return false;
2789	}
2790	var panelEls = wrap.querySelectorAll( '.help-tab-content, .contextual-help-sidebar' );
2791	for ( var i = 0; i < panelEls.length; i++ ) {
2792	if ( ( panelEls[ i ].textContent \|\| '' ).trim() !== '' ) {
2793	return true;
2794	}
2795	}
2796	return false;
2797	}
2798
2799	var links = document.getElementById( 'screen-meta-links' );
2800	var screenOptionsBtn = links ? document.getElementById( 'show-settings-link' ) : null;
2801	var helpBtn = links ? document.getElementById( 'contextual-help-link' ) : null;
2802	var panels = [];
2803	if ( screenOptionsBtn && hasScreenOptionsContent() ) {
2804	panels.push( 'screen-options' );
2805	}
2806	if ( helpBtn && hasHelpContent() ) {
2807	panels.push( 'help' );
2808	}
2809
2810	var origin = window.location.origin;
2811
2812	// ALWAYS announce — including an empty array — so the parent removes
2813	// stale gear/Help buttons when this page (e.g. after an in-place
2814	// same-slug navigation) has no screen meta. addScreenMetaButtons()
2815	// clears then repopulates, so an empty array removes everything.
2816	window.parent.postMessage( {
2817	type: 'os-screen-meta',
2818	panels: panels
2819	}, origin );
2820
2821	if ( panels.length === 0 ) {
2822	return;
2823	}
2824
2825	function getOpenPanel() {
2826	if ( screenOptionsBtn && screenOptionsBtn.getAttribute( 'aria-expanded' ) === 'true' ) {
2827	return 'screen-options';
2828	}
2829	if ( helpBtn && helpBtn.getAttribute( 'aria-expanded' ) === 'true' ) {
2830	return 'help';
2831	}
2832	return null;
2833	}
2834
2835	function reportState() {
2836	window.parent.postMessage( {
2837	type: 'os-screen-meta-state',
2838	open: getOpenPanel()
2839	}, origin );
2840	}
2841
2842	reportState();
2843
2844	var observer = new MutationObserver( reportState );
2845	if ( screenOptionsBtn ) {
2846	observer.observe( screenOptionsBtn, { attributes: true, attributeFilter: [ 'aria-expanded' ] } );
2847	}
2848	if ( helpBtn ) {
2849	observer.observe( helpBtn, { attributes: true, attributeFilter: [ 'aria-expanded' ] } );
2850	}
2851
2852	// WP's close() animates and shares #screen-meta between both panels,
2853	// so racing two animated clicks hides the panel that just opened.
2854	// Jump the other panel to its closed end state synchronously instead.
2855	function forceClose( button ) {
2856	if ( ! button \|\| button.getAttribute( 'aria-expanded' ) !== 'true' ) {
2857	return;
2858	}
2859	var panelId = button.getAttribute( 'aria-controls' );
2860	var panel = panelId ? document.getElementById( panelId ) : null;
2861	if ( ! panel ) {
2862	return;
2863	}
2864	if ( window.jQuery ) {
2865	window.jQuery( panel ).stop( true, false );
2866	}
2867	panel.style.display = 'none';
2868	panel.classList.add( 'hidden' );
2869	if ( panel.parentNode instanceof HTMLElement ) {
2870	panel.parentNode.style.display = 'none';
2871	}
2872	button.classList.remove( 'screen-meta-active' );
2873	button.setAttribute( 'aria-expanded', 'false' );
2874	var toggles = document.querySelectorAll( '.screen-meta-toggle' );
2875	for ( var i = 0; i < toggles.length; i++ ) {
2876	toggles[ i ].style.visibility = '';
2877	}
2878	}
2879
2880	/* -----------------------------------------------------------------
2881	* Broadcast receiver — iframe side.
2882	*
2883	* The parent shell publishes broadcasts via
2884	* `wp.os.broadcast(topic, payload)` (see `src/broadcast.ts`).
2885	* It posts `{ type: 'os-broadcast', topic, payload }` to
2886	* every open iframe. Here we re-dispatch that as a CustomEvent
2887	* on the iframe's own document so admin pages can subscribe with
2888	* plain `document.addEventListener( 'os-broadcast', cb )`
2889	* — no extra script handle required.
2890	*
2891	* Iframe-side admin code can also publish UPSTREAM by posting
2892	* the same shape to `window.parent`; the parent's
2893	* `installBroadcastReceiver()` re-broadcasts to every other
2894	* iframe + native window.
2895	* ----------------------------------------------------------------- */
2896	window.addEventListener( 'message', function ( e ) {
2897	if ( e.origin !== origin ) {
2898	return;
2899	}
2900	if ( ! e.data \|\| e.data.type !== 'os-broadcast' ) {
2901	return;
2902	}
2903	try {
2904	document.dispatchEvent( new CustomEvent( 'os-broadcast', {
2905	detail: { topic: e.data.topic, payload: e.data.payload }
2906	} ) );
2907	} catch ( _err ) { /* old browser without CustomEvent ctor — ignore */ }
2908	} );
2909
2910	/* -----------------------------------------------------------------
2911	* Soft-reload — iframe-side default handler.
2912	*
2913	* When a `os.<post_type>.changed` broadcast fires AND the
2914	* current iframe is on a known list page for that post type, we
2915	* fetch the current URL and replace the iframe's `#wpbody-content`
2916	* in place. The user sees the new state of the list — restored
2917	* post appears, deleted media disappears — without the WP loading
2918	* spinner that `location.reload()` would show.
2919	*
2920	* Single-edit pages (`post.php`, `post-new.php`, the HPOS order
2921	* editor) are deliberately NOT matched: replacing their body would
2922	* destroy any unsaved Gutenberg/classic-editor state. Plugins that
2923	* want specific behaviour for those pages can subscribe to the
2924	* same topic on `document` and handle it themselves.
2925	*
2926	* Matching is generic: the current page's "list type" is derived
2927	* from the URL (`edit.php` → its `post_type` param or `post`,
2928	* `upload.php` → `attachment`, `edit-comments.php` → `comment`)
2929	* and compared against the `<type>` captured from any
2930	* `os.<type>.changed` topic — so every custom post
2931	* type's `edit.php?post_type=X` screen participates with zero
2932	* per-type code. Non-`edit.php` list screens (e.g. WooCommerce's
2933	* HPOS `admin.php?page=wc-orders`) are covered by declarative
2934	* extra rules, filterable server-side via
2935	* `openstation_soft_reload_rules`.
2936	*
2937	* The fetch carries a custom header so a later phase can serve a
2938	* minimal partial response if we want to optimise; for now WP
2939	* returns the full admin page and we just pluck the body.
2940	*
2941	* Most WP list-table JS delegates on `document`/`body` and
2942	* survives the swap. The inline editors don't, so
2943	* `_openstationReinitListTables()` below re-runs Core's init
2944	* entry points afterwards. A page needing more than that should
2945	* listen for `os-soft-reloaded`, which fires after that re-init.
2946	* ----------------------------------------------------------------- */
2947	var OPENSTATION_SOFT_RELOAD_EXTRAS = /__OPENSTATION_SOFT_RELOAD_EXTRAS__/;
2948
2949	function _openstationEndsWith( s, suffix ) { return s.lastIndexOf( suffix ) === s.length - suffix.length; }
2950
2951	function _openstationListType() {
2952	if ( _openstationEndsWith( location.pathname, '/wp-admin/edit.php' ) ) {
2953	return new URLSearchParams( location.search ).get( 'post_type' ) \|\| 'post';
2954	}
2955	if ( _openstationEndsWith( location.pathname, '/wp-admin/upload.php' ) ) {
2956	return 'attachment';
2957	}
2958	if ( _openstationEndsWith( location.pathname, '/wp-admin/edit-comments.php' ) ) {
2959	return 'comment';
2960	}
2961	if ( _openstationEndsWith( location.pathname, '/wp-admin/plugins.php' ) ) {
2962	return 'plugin';
2963	}
2964	// plugin-install.php is intentionally not a soft-reload target.
2965	// Reloading that page mid-session would discard the user's search
2966	// results or reset an in-progress install. The page still emits
2967	// plugin.changed (via notifyPluginInstall below); it just doesn't
2968	// reload itself in response to one.
2969	return null;
2970	}
2971
2972	function _openstationMatchesExtraRule( rule ) {
2973	if ( ! rule \|\| ! rule.path ) {
2974	return false;
2975	}
2976	if ( ! _openstationEndsWith( location.pathname, '/wp-admin/' + rule.path ) ) {
2977	return false;
2978	}
2979	var params = new URLSearchParams( location.search );
2980	if ( rule.query ) {
2981	for ( var key in rule.query ) {
2982	if ( ! Object.prototype.hasOwnProperty.call( rule.query, key ) ) {
2983	continue;
2984	}
2985	if ( params.get( key ) !== String( rule.query[ key ] ) ) {
2986	return false;
2987	}
2988	}
2989	}
2990	if ( rule.queryAbsent ) {
2991	for ( var i = 0; i < rule.queryAbsent.length; i++ ) {
2992	if ( params.has( rule.queryAbsent[ i ] ) ) {
2993	return false;
2994	}
2995	}
2996	}
2997	return true;
2998	}
2999
3000	function _openstationSoftReloadTopicMatches( topic ) {
3001	var m = /^os\.(.+)\.changed$/.exec( topic );
3002	if ( m && m[ 1 ] === _openstationListType() ) {
3003	return true;
3004	}
3005	for ( var i = 0; i < OPENSTATION_SOFT_RELOAD_EXTRAS.length; i++ ) {
3006	var rule = OPENSTATION_SOFT_RELOAD_EXTRAS[ i ];
3007	if ( rule && rule.topic === topic && _openstationMatchesExtraRule( rule ) ) {
3008	return true;
3009	}
3010	}
3011	return false;
3012	}
3013
3014	var _openstationSoftReloadInFlight = false;
3015	var _openstationSoftReloadQueued = false;
3016
3017	/*
3018	* Re-init Core's list-table editors after a soft reload.
3019	*
3020	* Core's inline editors bind to elements inside `#wpbody-content`
3021	* instead of delegating on `document`: `#the-list` for Quick Edit
3022	* (inline-edit-post.js, inline-edit-tax.js), `#doaction` for Bulk
3023	* Edit, `#the-comment-list` for the comment inline editors. The
3024	* swap above throws those elements away, so the buttons keep
3025	* rendering and stop working.
3026	*
3027	* Only re-run an init whose every binding lands inside the
3028	* replaced subtree — then the fresh DOM gets it exactly once and
3029	* nothing accumulates. `setCommentsList()` fails that test and is
3030	* NOT called here: it re-runs `wpList`, whose `process()` binds on
3031	* `document` (which survives), so each call stacks another set of
3032	* comment row-action handlers and one Approve click ends up firing
3033	* N moderation requests. Those handlers were never broken by the
3034	* swap; only the closure state behind them goes stale, which costs
3035	* a stale total count until the next reload.
3036	*
3037	* Also left alone: `common.js`'s empty-bulk-action guard and
3038	* search-box mousedown, and `$.table_hotkeys` (comment moderation
3039	* shortcuts stop navigating; re-running it would double-register).
3040	* All degraded rather than dead, and each would mean copying
3041	* dozens of lines of Core in here.
3042	*/
3043	function _openstationReinitListTables() {
3044	var $ = window.jQuery;
3045	if ( ! $ ) {
3046	return;
3047	}
3048
3049	/*
3050	* Mobile row expander. `common.js` binds it per-`tbody`, all
3051	* of which we just replaced. Narrow windows are the norm in
3052	* the shell, so it is often the only row affordance on screen.
3053	*
3054	* Per-`tbody` on purpose. Delegating on the now-surviving
3055	* `#wpbody-content` would stack with Core's own binding on
3056	* first load and toggle the row twice, back to closed.
3057	*/
3058	$( '#wpbody-content tbody' ).on( 'click', '.toggle-row', function () {
3059	$( this ).closest( 'tr' ).toggleClass( 'is-expanded' );
3060	} );
3061
3062	if ( document.getElementById( 'the-list' ) ) {
3063	try {
3064	if ( window.inlineEditPost && typeof window.inlineEditPost.init === 'function' ) {
3065	window.inlineEditPost.init();
3066	}
3067	} catch ( err ) { _openstationWarnReinit( 'inline-edit-post', err ); }
3068	try {
3069	if ( window.inlineEditTax && typeof window.inlineEditTax.init === 'function' ) {
3070	window.inlineEditTax.init();
3071	}
3072	} catch ( err ) { _openstationWarnReinit( 'inline-edit-tax', err ); }
3073	}
3074
3075	if ( document.getElementById( 'the-comment-list' ) && window.commentReply ) {
3076	try {
3077	if ( typeof window.commentReply.init === 'function' ) {
3078	window.commentReply.init();
3079	}
3080	} catch ( err ) { _openstationWarnReinit( 'comment-reply', err ); }
3081	try {
3082	/*
3083	* Quick Edit / Reply / Edit on a comment row.
3084	* edit-comments.js binds this in its own doc-ready
3085	* rather than in `commentReply.init`, so there is
3086	* nothing to re-call. Mirror Core's handler.
3087	*/
3088	$( '#the-comment-list' ).on( 'click', '.comment-inline', function () {
3089	var $el = $( this ),
3090	action = 'replyto';
3091
3092	if ( 'undefined' !== typeof $el.data( 'action' ) ) {
3093	action = $el.data( 'action' );
3094	}
3095
3096	$( this ).attr( 'aria-expanded', 'true' );
3097	window.commentReply.open( $el.data( 'commentId' ), $el.data( 'postId' ), action );
3098	} );
3099	} catch ( err ) { _openstationWarnReinit( 'comment-inline', err ); }
3100	}
3101	}
3102
3103	/*
3104	* One failing re-init must not take the others, or the
3105	* `os-soft-reloaded` listeners after them, down with it. Warn
3106	* rather than swallow: a silent catch here looks exactly like the
3107	* bug this function exists to fix.
3108	*/
3109	function _openstationWarnReinit( which, err ) {
3110	if ( window.console && window.console.warn ) {
3111	window.console.warn( '[openstation] soft-reload re-init failed for ' + which + ':', err );
3112	}
3113	}
3114
3115	function _openstationSoftReload() {
3116	if ( _openstationSoftReloadInFlight ) {
3117	_openstationSoftReloadQueued = true;
3118	return;
3119	}
3120	_openstationSoftReloadInFlight = true;
3121	fetch( location.href, {
3122	credentials: 'same-origin',
3123	cache: 'no-cache',
3124	headers: { 'X-WP-Desktop-Soft-Reload': '1' }
3125	} ).then( function ( r ) {
3126	if ( ! r.ok ) throw new Error( 'soft-reload fetch failed: ' + r.status );
3127	return r.text();
3128	} ).then( function ( html ) {
3129	var doc = new DOMParser().parseFromString( html, 'text/html' );
3130	var fresh = doc.querySelector( '#wpbody-content' );
3131	var live = document.querySelector( '#wpbody-content' );
3132	if ( ! fresh \|\| ! live ) {
3133	/* Markup we expected isn't there — admin pages we
3134	* don't recognise (or core changes the structure).
3135	* Don't reload; let the iframe stay as it is rather
3136	* than show a spinner the user told us not to. */
3137	return;
3138	}
3139	/*
3140	* Swap the CONTENTS of `#wpbody-content`, keeping the
3141	* node. Keeping it preserves handlers delegated on it,
3142	* which is where `common.js` puts the row-actions focus
3143	* reveal. Core emits the container as a bare
3144	* `<div id="wpbody-content">`, so the only thing this
3145	* discards is any attribute a plugin added to `fresh`.
3146	*/
3147	live.replaceChildren.apply( live, Array.prototype.slice.call( fresh.childNodes ) );
3148	_openstationReinitListTables();
3149	try {
3150	document.dispatchEvent( new CustomEvent( 'os-soft-reloaded' ) );
3151	} catch ( _err ) {}
3152	/* Some WP scripts re-init on DOMContentLoaded only — let
3153	* pages opt-in to a re-init by listening to the event
3154	* above. We intentionally do NOT re-fire DOMContentLoaded;
3155	* that's almost always wrong (double-init of jQuery/WP). */
3156	} ).catch( function ( err ) {
3157	/* Network error — leave the iframe untouched. The user's
3158	* next manual interaction will refresh state, and the
3159	* next broadcast will retry. */
3160	if ( window.console && window.console.warn ) {
3161	window.console.warn( '[openstation] soft-reload skipped:', err );
3162	}
3163	} ).then( function () {
3164	_openstationSoftReloadInFlight = false;
3165	if ( _openstationSoftReloadQueued ) {
3166	_openstationSoftReloadQueued = false;
3167	_openstationSoftReload();
3168	}
3169	} );
3170	}
3171
3172	document.addEventListener( 'os-broadcast', function ( e ) {
3173	var detail = e.detail \|\| {};
3174	var topic = detail.topic;
3175	if ( ! topic ) return;
3176	if ( _openstationSoftReloadTopicMatches( topic ) ) {
3177	_openstationSoftReload();
3178	}
3179	} );
3180
3181	window.addEventListener( 'message', function( e ) {
3182	if ( e.origin !== origin ) {
3183	return;
3184	}
3185	if ( ! e.data \|\| e.data.type !== 'os-toggle-panel' ) {
3186	return;
3187	}
3188	var target = null;
3189	if ( e.data.panel === 'screen-options' && screenOptionsBtn ) {
3190	target = screenOptionsBtn;
3191	} else if ( e.data.panel === 'help' && helpBtn ) {
3192	target = helpBtn;
3193	}
3194	if ( ! target ) {
3195	return;
3196	}
3197	if ( target.getAttribute( 'aria-expanded' ) !== 'true' ) {
3198	var other = target === screenOptionsBtn ? helpBtn : screenOptionsBtn;
3199	forceClose( other );
3200	}
3201	target.click();
3202	} );
3203
3204	/* -----------------------------------------------------------------
3205	* Connection bridge — iframe side.
3206	*
3207	* Plugins call `wp.os.iframe.publish(topic, payload)` /
3208	* `subscribe(topic, cb)` / `onConnection(cb)` to talk to a parent-
3209	* side `wp.os.connect()` caller. The shell only routes;
3210	* topic semantics are plugin-defined.
3211	*
3212	* Connections are tracked locally so `onConnection` can fire when
3213	* the parent opens a new channel (typical use: start emitting
3214	* heavy events only after at least one consumer subscribed). Each
3215	* connection carries a topic-allowlist negotiated at handshake
3216	* time — wildcard ('*') subscribers see everything.
3217	* ----------------------------------------------------------------- */
3218	var _wpdConnections = {};
3219	var _wpdConnectionListeners = [];
3220	var _wpdSubs = {}; // topic → [cb, ...]
3221	var _wpdChannelSubs = {}; // channel → [cb, ...] (window-channel API)
3222	var _wpdParentOrigin = window.location.origin;
3223	var _wpdWindowId = null; // host window id, from the handshake
3224	var _wpdWindowIdWaiters = []; // pending whenWindowId() resolvers
3225
3226	/* Stash the host window's id (the parent's handshake carries
3227	* `targetWindowId`) and flush any `whenWindowId()` waiters. Same
3228	* contract as `assets/js/iframe-bridge.js`. */
3229	function _wpdSetWindowId( id ) {
3230	if ( ! id \|\| _wpdWindowId === id ) {
3231	return;
3232	}
3233	_wpdWindowId = id;
3234	var waiters = _wpdWindowIdWaiters.splice( 0 );
3235	for ( var i = 0; i < waiters.length; i++ ) {
3236	try {
3237	waiters[ i ]( id );
3238	} catch ( _err ) { /* swallow */ }
3239	}
3240	}
3241
3242	function _wpdEmitToParent( connectionId, topic, payload ) {
3243	try {
3244	window.parent.postMessage( {
3245	type: 'os-bridge-publish',
3246	connectionId: connectionId,
3247	topic: topic,
3248	payload: payload
3249	}, _wpdParentOrigin );
3250	} catch ( _err ) { /* parent gone */ }
3251	}
3252
3253	window.addEventListener( 'message', function ( ev ) {
3254	if ( ev.origin !== _wpdParentOrigin ) {
3255	return;
3256	}
3257	var data = ev && ev.data;
3258	if ( ! data \|\| typeof data !== 'object' \|\| typeof data.type !== 'string' ) {
3259	return;
3260	}
3261
3262	if ( data.type === 'os-bridge-beforeunload-query' ) {
3263	var prevent = false;
3264	var msg = '';
3265
3266	function shimReturnValue( ev ) {
3267	Object.defineProperty( ev, 'returnValue', {
3268	get: function() { return this._returnValue \|\| ''; },
3269	set: function( v ) { this._returnValue = v; }
3270	} );
3271	}
3272
3273	function checkPrevent( ev, result ) {
3274	var hasRes = typeof result === 'string' && result !== '';
3275	var hasRetVal = typeof ev.returnValue === 'string' && ev.returnValue !== '';
3276	if ( ev.defaultPrevented \|\| hasRes \|\| hasRetVal ) {
3277	prevent = true;
3278	if ( hasRes ) {
3279	msg = result;
3280	} else if ( hasRetVal ) {
3281	msg = ev.returnValue;
3282	}
3283	}
3284	}
3285
3286	var unloadEvent;
3287	try {
3288	unloadEvent = new Event( 'beforeunload', { cancelable: true } );
3289	} catch ( _err ) {
3290	unloadEvent = document.createEvent( 'Event' );
3291	unloadEvent.initEvent( 'beforeunload', false, true );
3292	}
3293	shimReturnValue( unloadEvent );
3294
3295	if ( typeof window.onbeforeunload === 'function' ) {
3296	var res = window.onbeforeunload( unloadEvent );
3297	checkPrevent( unloadEvent, res );
3298	}
3299	if ( ! prevent ) {
3300	var dispatchEvent;
3301	try {
3302	dispatchEvent = new Event( 'beforeunload', { cancelable: true } );
3303	} catch ( _err ) {
3304	dispatchEvent = document.createEvent( 'Event' );
3305	dispatchEvent.initEvent( 'beforeunload', false, true );
3306	}
3307	shimReturnValue( dispatchEvent );
3308	window.dispatchEvent( dispatchEvent );
3309	checkPrevent( dispatchEvent, null );
3310	}
3311
3312	try {
3313	window.parent.postMessage( {
3314	type: 'os-bridge-beforeunload-response',
3315	prevent: prevent,
3316	message: msg
3317	}, _wpdParentOrigin );
3318	} catch ( _err ) { /* swallow */ }
3319	return;
3320	}
3321
3322	if ( data.type === 'os-bridge-handshake' && typeof data.connectionId === 'string' ) {
3323	/* The parent's handshake carries the host window id —
3324	* stash it so `wp.os.iframe.windowId` and
3325	* `whenWindowId()` can serve callers that need to know
3326	* which native window opened this iframe. */
3327	if ( typeof data.targetWindowId === 'string' && data.targetWindowId !== '' ) {
3328	_wpdSetWindowId( data.targetWindowId );
3329	}
3330	if ( _wpdConnections[ data.connectionId ] ) {
3331	/* Re-handshake on iframe-ready re-arm — no-op besides
3332	* acking again so the parent can resume. */
3333	try {
3334	window.parent.postMessage( {
3335	type: 'os-bridge-handshake-ack',
3336	connectionId: data.connectionId
3337	}, _wpdParentOrigin );
3338	} catch ( _err ) { /* swallow */ }
3339	return;
3340	}
3341	var conn = {
3342	id: data.connectionId,
3343	topics: Array.isArray( data.topics ) ? data.topics.slice() : []
3344	};
3345	_wpdConnections[ conn.id ] = conn;
3346	try {
3347	window.parent.postMessage( {
3348	type: 'os-bridge-handshake-ack',
3349	connectionId: conn.id
3350	}, _wpdParentOrigin );
3351	} catch ( _err ) { /* swallow */ }
3352	for ( var i = 0; i < _wpdConnectionListeners.length; i++ ) {
3353	try {
3354	_wpdConnectionListeners[ i ]( {
3355	id: conn.id,
3356	topics: conn.topics.slice()
3357	} );
3358	} catch ( _err ) { /* swallow listener */ }
3359	}
3360	return;
3361	}
3362
3363	if ( data.type === 'os-bridge-publish' && typeof data.topic === 'string' ) {
3364	var bucket = _wpdSubs[ data.topic ];
3365	if ( bucket ) {
3366	for ( var j = 0; j < bucket.length; j++ ) {
3367	try {
3368	bucket[ j ]( data.payload, { topic: data.topic, connectionId: data.connectionId } );
3369	} catch ( _err ) { /* swallow subscriber */ }
3370	}
3371	}
3372	var wildcard = _wpdSubs[ '*' ];
3373	if ( wildcard ) {
3374	for ( var k = 0; k < wildcard.length; k++ ) {
3375	try {
3376	wildcard[ k ]( data.payload, { topic: data.topic, connectionId: data.connectionId } );
3377	} catch ( _err ) { /* swallow */ }
3378	}
3379	}
3380	return;
3381	}
3382
3383	if ( data.type === 'os-bridge-disconnect' && typeof data.connectionId === 'string' ) {
3384	delete _wpdConnections[ data.connectionId ];
3385	return;
3386	}
3387
3388	/* Unified window-channel delivery from the parent. Fires
3389	* every `wp.os.on( channel, cb )` subscriber for the
3390	* matching channel — same protocol as
3391	* `assets/js/iframe-bridge.js`. */
3392	if ( data.type === 'os-window-send' && typeof data.channel === 'string' && data.channel !== '' ) {
3393	var meta = { channel: data.channel };
3394	var cBucket = _wpdChannelSubs[ data.channel ];
3395	if ( cBucket ) {
3396	var cBucketSnap = cBucket.slice();
3397	for ( var ci = 0; ci < cBucketSnap.length; ci++ ) {
3398	try {
3399	cBucketSnap[ ci ]( data.payload, meta );
3400	} catch ( _err ) { /* swallow */ }
3401	}
3402	}
3403	var cWildcard = _wpdChannelSubs[ '*' ];
3404	if ( cWildcard ) {
3405	var cWildcardSnap = cWildcard.slice();
3406	for ( var cw = 0; cw < cWildcardSnap.length; cw++ ) {
3407	try {
3408	cWildcardSnap[ cw ]( data.payload, meta );
3409	} catch ( _err ) { /* swallow */ }
3410	}
3411	}
3412	return;
3413	}
3414	} );
3415
3416	var iframeApi = {
3417	/**
3418	* Publish a payload under a topic. Sent to every connection
3419	* — typical case is one connection per parent caller, but
3420	* a debug console may have several at once.
3421	*/
3422	publish: function ( topic, payload ) {
3423	if ( typeof topic !== 'string' \|\| topic === '' ) {
3424	return;
3425	}
3426	var ids = Object.keys( _wpdConnections );
3427	for ( var i = 0; i < ids.length; i++ ) {
3428	_wpdEmitToParent( ids[ i ], topic, payload );
3429	}
3430	},
3431	/**
3432	* Subscribe to a topic. Returns an unsubscribe function.
3433	* Use `'*'` to receive every published payload (debugging).
3434	*/
3435	subscribe: function ( topic, cb ) {
3436	if ( typeof topic !== 'string' \|\| topic === '' \|\| typeof cb !== 'function' ) {
3437	return function () {};
3438	}
3439	var bucket = _wpdSubs[ topic ];
3440	if ( ! bucket ) {
3441	bucket = [];
3442	_wpdSubs[ topic ] = bucket;
3443	}
3444	bucket.push( cb );
3445	return function () {
3446	var i = bucket.indexOf( cb );
3447	if ( i >= 0 ) {
3448	bucket.splice( i, 1 );
3449	}
3450	};
3451	},
3452	/**
3453	* Notified whenever a parent caller opens a connection. Use
3454	* to start emitting heavy publish events only when somebody
3455	* is listening.
3456	*/
3457	onConnection: function ( cb ) {
3458	if ( typeof cb !== 'function' ) {
3459	return function () {};
3460	}
3461	_wpdConnectionListeners.push( cb );
3462	/* Replay current connections — late subscribers still
3463	* see who's already there. */
3464	var ids = Object.keys( _wpdConnections );
3465	for ( var i = 0; i < ids.length; i++ ) {
3466	try {
3467	cb( {
3468	id: _wpdConnections[ ids[ i ] ].id,
3469	topics: _wpdConnections[ ids[ i ] ].topics.slice()
3470	} );
3471	} catch ( _err ) { /* swallow */ }
3472	}
3473	return function () {
3474	var i = _wpdConnectionListeners.indexOf( cb );
3475	if ( i >= 0 ) {
3476	_wpdConnectionListeners.splice( i, 1 );
3477	}
3478	};
3479	},
3480	/**
3481	* Iframe-initiated connection request. See
3482	* `assets/js/iframe-bridge.js` — same shape, same protocol.
3483	*/
3484	requestConnection: function ( opts ) {
3485	opts = opts \|\| {};
3486	var topics = Array.isArray( opts.topics ) ? opts.topics.slice() : [];
3487	var requestId = 'wpdir-' + Math.random().toString( 36 ).slice( 2, 10 );
3488
3489	return new Promise( function ( resolve, reject ) {
3490	var settled = false;
3491	var timeoutMs = typeof opts.timeoutMs === 'number'
3492	? opts.timeoutMs
3493	: 5000;
3494
3495	function settle( ok, value ) {
3496	if ( settled ) {
3497	return;
3498	}
3499	settled = true;
3500	window.removeEventListener( 'message', onAck );
3501	clearTimeout( timer );
3502	if ( ok ) {
3503	resolve( value );
3504	} else {
3505	reject( value );
3506	}
3507	}
3508
3509	function onAck( ev ) {
3510	if ( ev.origin !== _wpdParentOrigin ) {
3511	return;
3512	}
3513	var d = ev && ev.data;
3514	if (
3515	! d \|\|
3516	typeof d !== 'object' \|\|
3517	d.type !== 'os-bridge-connection-ack' \|\|
3518	d.requestId !== requestId
3519	) {
3520	return;
3521	}
3522	if ( d.accepted ) {
3523	var summary = {
3524	id: typeof d.connectionId === 'string' ? d.connectionId : '',
3525	topics: topics.slice()
3526	};
3527	if ( typeof opts.onOpen === 'function' ) {
3528	try { opts.onOpen( summary ); } catch ( _err ) { /* swallow */ }
3529	}
3530	settle( true, summary );
3531	} else {
3532	settle( false, new Error( d.reason \|\| 'rejected' ) );
3533	}
3534	}
3535	window.addEventListener( 'message', onAck );
3536
3537	var timer = setTimeout( function () {
3538	settle( false, new Error( 'timeout' ) );
3539	}, timeoutMs );
3540
3541	try {
3542	window.parent.postMessage( {
3543	type: 'os-bridge-connection-request',
3544	requestId: requestId,
3545	topics: topics
3546	}, _wpdParentOrigin );
3547	} catch ( err ) {
3548	settle( false, err );
3549	}
3550	} );
3551	},
3552	/**
3553	* Window-chrome helpers. See `assets/js/iframe-bridge.js` —
3554	* same shape, same protocol. `setSlot` is HTML-only
3555	* (sandboxed via `textContent` on the parent side).
3556	*/
3557	chrome: {
3558	setTheme: function ( tokens ) {
3559	try {
3560	window.parent.postMessage( {
3561	type: 'os-chrome-theme',
3562	tokens: tokens \|\| {}
3563	}, _wpdParentOrigin );
3564	} catch ( _err ) { /* parent gone */ }
3565	},
3566	setControls: function ( config ) {
3567	try {
3568	window.parent.postMessage( {
3569	type: 'os-chrome-controls',
3570	config: config === undefined ? null : config
3571	}, _wpdParentOrigin );
3572	} catch ( _err ) { /* parent gone */ }
3573	},
3574	setSlot: function ( name, html ) {
3575	if ( typeof name !== 'string' \|\| name === '' ) {
3576	return;
3577	}
3578	try {
3579	window.parent.postMessage( {
3580	type: 'os-chrome-slot',
3581	slot: name,
3582	html: typeof html === 'string' ? html : ''
3583	}, _wpdParentOrigin );
3584	} catch ( _err ) { /* parent gone */ }
3585	}
3586	},
3587	/**
3588	* The id of the window the parent shell opened to host this
3589	* iframe. Populated by the first connection handshake (the
3590	* parent's handshake carries `targetWindowId`). `null` until
3591	* then.
3592	*/
3593	get windowId() {
3594	return _wpdWindowId;
3595	},
3596	/**
3597	* Resolve once `windowId` is populated by the first handshake.
3598	* Resolves immediately if already known. Never rejects — guard
3599	* with `isParentReachable()` first.
3600	*/
3601	whenWindowId: function () {
3602	if ( _wpdWindowId !== null ) {
3603	return Promise.resolve( _wpdWindowId );
3604	}
3605	return new Promise( function ( resolve ) {
3606	_wpdWindowIdWaiters.push( resolve );
3607	} );
3608	},
3609	/**
3610	* Whether the parent frame is same-origin and reachable. All
3611	* bridge messages hard-filter on origin — a cross-origin
3612	* parent silently drops everything we post. Use this predicate
3613	* to fail fast instead of debugging vanishing messages.
3614	*/
3615	isParentReachable: function () {
3616	if ( ! window.parent \|\| window.parent === window ) {
3617	return false;
3618	}
3619	try {
3620	/* Cross-origin parents throw on `.location.origin`
3621	* access; same-origin parents return a string we can
3622	* compare to our own origin. */
3623	return window.parent.location.origin === _wpdParentOrigin;
3624	} catch ( _err ) {
3625	return false;
3626	}
3627	}
3628	};
3629
3630	if ( ! window.wp ) { window.wp = {}; }
3631	if ( ! window.wp.os ) { window.wp.os = {}; }
3632	window.wp.os.iframe = iframeApi;
3633
3634	/* Unified window-channel API. Mirror of the equivalent block
3635	* in `assets/js/iframe-bridge.js` — keep both in sync. The
3636	* parent shell posts `os-window-send` on
3637	* `Window.send( channel, payload )`; iframe-side handlers
3638	* register via `wp.os.on( channel, cb )`. Sending the
3639	* other way (`wp.os.send`) posts up to the parent where
3640	* `Window.on( channel, cb )` subscribers fire. */
3641	if ( typeof window.wp.os.send !== 'function' ) {
3642	window.wp.os.send = function ( channel, payload ) {
3643	if ( typeof channel !== 'string' \|\| channel === '' ) {
3644	return;
3645	}
3646	try {
3647	window.parent.postMessage( {
3648	type: 'os-window-publish',
3649	channel: channel,
3650	payload: payload
3651	}, _wpdParentOrigin );
3652	} catch ( _err ) { /* parent gone */ }
3653	};
3654	}
3655	if ( typeof window.wp.os.on !== 'function' ) {
3656	window.wp.os.on = function ( channel, cb ) {
3657	if ( typeof channel !== 'string' \|\| channel === '' \|\| typeof cb !== 'function' ) {
3658	return function () {};
3659	}
3660	var bucket = _wpdChannelSubs[ channel ];
3661	if ( ! bucket ) {
3662	bucket = [];
3663	_wpdChannelSubs[ channel ] = bucket;
3664	}
3665	bucket.push( cb );
3666	return function () {
3667	var i = bucket.indexOf( cb );
3668	if ( i >= 0 ) {
3669	bucket.splice( i, 1 );
3670	}
3671	};
3672	};
3673	}
3674
3675	/* -----------------------------------------------------------------
3676	* Stale-nonce recovery after a session-expiry re-login.
3677	*
3678	* When the user's session expires while a chromeless window is
3679	* open, this iframe does NOT show core's `wp-auth-check` login
3680	* modal — `openstation_chromeless_suppress_auth_check()` keeps
3681	* the modal assets out of chromeless requests so the parent
3682	* shell owns the single prompt for the whole desktop. Detection
3683	* still works without the modal JS: core attaches the
3684	* `wp-auth-check` boolean to every heartbeat response
3685	* server-side, and this iframe's own heartbeat keeps ticking.
3686	*
3687	* After re-auth the auth cookie is fresh — but every per-page
3688	* nonce cached in JS globals (`_wpUpdatesSettings.ajax_nonce`,
3689	* `commonL10n.nonce`, Gutenberg's `wpApiSettings.nonce`, etc.)
3690	* was minted under the OLD session and is now rejected by
3691	* `check_ajax_referer`. WP reports that as "Cookie check
3692	* failed" on the next plugin Install / Activate / Update click,
3693	* which is misleading: the cookie is fine; the nonce is stale.
3694	*
3695	* Fix: watch jQuery's `heartbeat-tick`. If we ever see
3696	* `wp-auth-check: false` and then later see the same field flip
3697	* back to `true`, the user re-authed mid-session and every
3698	* cached nonce in this iframe is stale — reload so they
3699	* regenerate from the fresh session. The parent is nudged
3700	* first (`os-reauth-detected`) so its own recovery
3701	* (`src/auth-recovery/index.ts`: in-place nonce refresh + a
3702	* reload sweep over sibling iframes that haven't ticked yet)
3703	* starts immediately instead of waiting for the parent's
3704	* heartbeat schedule.
3705	*
3706	* If jQuery never loads on this page (rare — most admin screens
3707	* pull it for heartbeat already), this block is a no-op.
3708	* ----------------------------------------------------------------- */
3709	( function _wpdInstallAuthCheckRecovery() {
3710	var attached = false;
3711	var sawLoggedOut = false;
3712	function attach() {
3713	if ( attached \|\| ! window.jQuery ) {
3714	return;
3715	}
3716	attached = true;
3717	window.jQuery( document ).on( 'heartbeat-tick.osAuthRecover', function ( ev, data ) {
3718	if ( ! data \|\| typeof data !== 'object' \|\| ! ( 'wp-auth-check' in data ) ) {
3719	return;
3720	}
3721	if ( data[ 'wp-auth-check' ] === false ) {
3722	sawLoggedOut = true;
3723	return;
3724	}
3725	if ( sawLoggedOut && data[ 'wp-auth-check' ] === true ) {
3726	sawLoggedOut = false;
3727	// Tell the parent shell BEFORE we reload so it
3728	// doesn't have to wait for its own heartbeat
3729	// tick (up to 60s on an idle shell) to discover
3730	// the cookie is fresh. Parent runs its full
3731	// recovery path on receipt — overlay teardown,
3732	// iframe reload sweep, then a hard reload.
3733	try {
3734	if ( window.parent && window.parent !== window ) {
3735	window.parent.postMessage(
3736	{ type: 'os-reauth-detected' },
3737	window.location.origin
3738	);
3739	}
3740	} catch ( _err ) { /* parent gone */ }
3741	try { window.location.reload(); } catch ( _err ) { /* swallow */ }
3742	}
3743	} );
3744	}
3745	attach();
3746	if ( document.readyState === 'loading' ) {
3747	document.addEventListener( 'DOMContentLoaded', attach, { once: true } );
3748	}
3749	window.addEventListener( 'load', attach, { once: true } );
3750	} )();
3751
3752	/* -----------------------------------------------------------------
3753	* Shiny-update watcher (GH#296).
3754	*
3755	* Core's updates.js applies plugin/theme updates and deletes over
3756	* AJAX — no navigation, so the load-time payload emit above never
3757	* re-fires and the shell's update notifiers (admin-bar circle-arrows
3758	* count, dock Plugins badge) keep showing the pre-update numbers
3759	* until a hard refresh. Watch the jQuery events updates.js triggers
3760	* on `document` after each job and nudge the shell to spend one
3761	* `refreshMenu()` probe, whose payload carries fresh counts.
3762	*
3763	* Error events are included deliberately: `wp_ajax_update_plugin`
3764	* calls `wp_update_plugins()` up front, which can mutate the
3765	* update transient even when the upgrade itself fails.
3766	*
3767	* When updates.js is processing a queue (bulk-selected shiny
3768	* updates), per-job events fire while later jobs are still
3769	* pending — skip those and let the final job's event send the one
3770	* nudge. The shell debounces on its side too, so this is purely
3771	* an optimization, not a correctness gate.
3772	*
3773	* If jQuery never loads on this page this block is a no-op — and
3774	* so is updates.js, which requires it.
3775	* ----------------------------------------------------------------- */
3776	( function _wpdInstallShinyUpdateWatcher() {
3777	var attached = false;
3778	function notify() {
3779	try {
3780	var queue = window.wp && window.wp.updates && window.wp.updates.queue;
3781	if ( queue && queue.length > 0 ) {
3782	return;
3783	}
3784	} catch ( _err ) { /* queue introspection is best-effort */ }
3785	try {
3786	var shell = window.top \|\| window.parent;
3787	if ( shell && shell !== window ) {
3788	shell.postMessage(
3789	{ type: 'os-updates-changed' },
3790	window.location.origin
3791	);
3792	}
3793	} catch ( _err ) { /* shell gone or cross-origin */ }
3794	}
3795	function notifyPluginInstall() {
3796	// `wp-plugin-install-success` fires after an AJAX install on
3797	// plugin-install.php with no page navigation. The PHP
3798	// `upgrader_process_complete` hook records the change correctly,
3799	// but `openstation_content_changes_emit_footer` only runs on
3800	// chromeless page requests — admin-ajax.php is not in the
3801	// chromeless allowlist, so there's no in-band emit from that
3802	// request. The Heartbeat buffer will eventually deliver it, but
3803	// posting directly here lets the Installed tab refresh
3804	// immediately. The later Heartbeat tick will produce a second
3805	// broadcast; consumers handle no-op refreshes gracefully.
3806	try {
3807	var shell = window.top \|\| window.parent;
3808	if ( shell && shell !== window ) {
3809	shell.postMessage(
3810	{
3811	type: 'os-broadcast',
3812	topic: 'os.plugin.changed',
3813	payload: { source: 'chromeless-bridge', action: 'install' }
3814	},
3815	window.location.origin
3816	);
3817	}
3818	} catch ( _err ) { /* shell gone or cross-origin */ }
3819	}
3820	function attach() {
3821	if ( attached \|\| ! window.jQuery ) {
3822	return;
3823	}
3824	attached = true;
3825	window.jQuery( document ).on(
3826	[
3827	'wp-plugin-update-success.osUpdates',
3828	'wp-plugin-update-error.osUpdates',
3829	'wp-plugin-delete-success.osUpdates',
3830	'wp-theme-update-success.osUpdates',
3831	'wp-theme-update-error.osUpdates',
3832	'wp-theme-delete-success.osUpdates'
3833	].join( ' ' ),
3834	notify
3835	);
3836	window.jQuery( document ).on( 'wp-plugin-install-success.osUpdates', notifyPluginInstall );
3837	}
3838	attach();
3839	if ( document.readyState === 'loading' ) {
3840	document.addEventListener( 'DOMContentLoaded', attach, { once: true } );
3841	}
3842	window.addEventListener( 'load', attach, { once: true } );
3843	} )();
3844
3845	/*
3846	* Bridge-ready signal. Every listener installed by this script
3847	* is now wired; let the parent shell know so it can fire
3848	* `HOOKS.IFRAME_READY` and re-arm any connection handshakes
3849	* (`src/connection/index.ts#onIframeReady`) that arrived before
3850	* we were listening. Without this, every consumer of
3851	* `HOOKS.IFRAME_READY` (devtools replay, connection rearm)
3852	* stays silent for the lifetime of the iframe — documented
3853	* surface that never actually fires.
3854	*
3855	* Posted to the parent's own origin only. Wrapped in try/catch
3856	* because cross-origin parents (top-level admin opened outside
3857	* the shell) would throw on the postMessage and we don't want a
3858	* single failed dispatch to wedge anything else above.
3859	*/
3860	try {
3861	if ( window.parent && window.parent !== window ) {
3862	window.parent.postMessage(
3863	{ type: 'os-ready' },
3864	window.location.origin
3865	);
3866	}
3867	} catch ( _err ) { /* parent gone or cross-origin */ }
3868	} )();
3869	JS;
3870
3871	// On pages that don't carry a full payload, ship the lightweight
3872	// menu signature so the shell can detect an off-allowlist menu
3873	// change (e.g. a CPT registered via a settings tool) and refresh
3874	// only then. The full payload already embeds its own `menuSig`, so
3875	// there's no point recomputing it when one is being sent. GH#325.
3876	$menu_sig_json = 'null';
3877	if ( 'null' === $menu_payload_json ) {
3878	$menu_sig = openstation_menu_signature();
3879	if ( '' !== $menu_sig ) {
3880	$encoded_sig = wp_json_encode( $menu_sig );
3881	if ( false !== $encoded_sig ) {
3882	$menu_sig_json = $encoded_sig;
3883	}
3884	}
3885	}
3886
3887	// Declarative soft-reload rules for list screens that are NOT a
3888	// standard `edit.php?post_type=<type>` / `upload.php` /
3889	// `edit-comments.php` page (those are matched generically in the
3890	// bridge script). Rule shape:
3891	// - `topic` — the `os.<type>.changed` topic.
3892	// - `path` — wp-admin filename (`admin.php`).
3893	// - `query` — required query params (exact match).
3894	// - `queryAbsent` — params that must NOT be present.
3895	//
3896	// The default rule covers WooCommerce's HPOS orders list.
3897	// `queryAbsent: [ 'action' ]` is load-bearing: with `&action=edit`
3898	// the same path is the single-order EDITOR, which must keep the
3899	// single-edit exclusion (a soft reload would destroy unsaved
3900	// order state). Shipped unconditionally — when WooCommerce is
3901	// absent the URL never renders and the rule is inert.
3902	$soft_reload_rules = array(
3903	array(
3904	'topic' => 'os.shop_order.changed',
3905	'path' => 'admin.php',
3906	'query' => array( 'page' => 'wc-orders' ),
3907	'queryAbsent' => array( 'action' ),
3908	),
3909	);
3910
3911	/**
3912	* Filters the declarative soft-reload rules injected into every
3913	* chromeless iframe.
3914	*
3915	* Lets a plugin whose list screen lives on a custom admin URL
3916	* participate in cross-window refresh: pair a rule here with
3917	* `openstation_content_changes_record()` calls (or your own
3918	* `os.<type>.changed` broadcasts) on the publish side.
3919	*
3920	* @param array $soft_reload_rules Rule arrays with keys `topic`,
3921	* `path`, `query`, `queryAbsent`.
3922	*/
3923	$soft_reload_rules = (array) apply_filters( 'openstation_soft_reload_rules', $soft_reload_rules );
3924	$soft_reload_json = wp_json_encode( array_values( $soft_reload_rules ) );
3925	if ( ! $soft_reload_json ) {
3926	$soft_reload_json = '[]';
3927	}
3928
3929	// Substitute the server-built menu payload into the bridge
3930	// script. `wp_json_encode` guarantees safe JSON output — no need
3931	// for an additional escape pass. When the page isn't on our
3932	// menu-altering allowlist the placeholder resolves to `null` and
3933	// the bridge skips the postMessage.
3934	$js = str_replace( '/__OPENSTATION_MENU_PAYLOAD__/', $menu_payload_json, $js );
3935	$js = str_replace( '/__OPENSTATION_MENU_SIG__/', $menu_sig_json, $js );
3936	$js = str_replace( '/__OPENSTATION_CONTENT_IDENTITY__/', $content_identity_json, $js );
3937	$js = str_replace( '/__OPENSTATION_SOFT_RELOAD_EXTRAS__/', $soft_reload_json, $js );
3938
3939	wp_print_inline_script_tag( $js );
3940	}
3941	add_action( 'admin_footer', 'openstation_chromeless_bridge_script' );
3942