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

chromeless-bridge.php in OpenStation: Desktop Windows, Dock & Virtual Desktops for WP Admin 1.0.1, 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, which is roughly two orders of magnitude
64	* cheaper than the old double-walk on a busy Gutenberg or
65	* WooCommerce admin page (~2,000+ `getComputedStyle()` calls
66	* collapsed into a one-time initial walk plus per-addition
67	* checks).
68	*
69	* Fallback for very old browsers without `MutationObserver`:
70	* keep the second walk at `load`. The current minimum (IE 11+)
71	* already ships MO, so the fallback only fires on extreme
72	* outliers — but it's free insurance.
73	*/
74	function openstation_chromeless_offset_neutralizer_script() {
75	if ( ! openstation_is_chromeless_request() ) {
76	return;
77	}
78
79	/**
80	* Filters the set of `top` pixel values that mark a positioned
81	* element as an admin-bar offset clone.
82	*
83	* Defaults match the two admin-bar heights Core ships: `32px`
84	* for desktop, `46px` for the mobile breakpoint. Sites that
85	* customize the admin bar height (some accessibility themes
86	* raise it to 50px) can extend the list.
87	*
88	* @param string[] $values Default `[ '32px', '46px' ]`.
89	*/
90	$top_values = apply_filters(
91	'openstation_chromeless_admin_bar_top_values',
92	array( '32px', '46px' )
93	);
94
95	$config = wp_json_encode(
96	array(
97	'tops' => array_values( array_filter( array_map( 'strval', (array) $top_values ) ) ),
98	)
99	);
100	if ( false === $config ) {
101	return;
102	}
103
104	// Build the inline JS as a concatenated single-quoted string —
105	// Plugin Check disallows heredoc syntax (PluginCheck.CodeAnalysis.
106	// Heredoc.NotAllowed), so the source is uglier than the original
107	// `<<<JS … JS;` block but functionally identical. The trailing
108	// `$config` JSON is appended at the end so the whole body is a
109	// closure receiving a `{tops: [...]}` argument.
110	$js = '(function(C){';
111	$js .= 'var TOPS={};';
112	$js .= 'for(var t=0;t<C.tops.length;t++){TOPS[C.tops[t]]=1;}';
113	$js .= 'function fixOne(el){';
114	$js .= 'if(!el\|\|el.nodeType!==1)return;';
115	$js .= 'var cs;';
116	$js .= 'try{cs=getComputedStyle(el);}catch(_e){return;}';
117	$js .= "if(cs.position==='static')return;";
118	$js .= "if(TOPS[cs.top]){el.style.setProperty('top','0px','important');}";
119	$js .= '}';
120	$js .= 'function walkSubtree(root){';
121	$js .= 'if(!root)return;';
122	$js .= 'if(root.nodeType===1){fixOne(root);}';
123	$js .= "var els=root.querySelectorAll?root.querySelectorAll('*'):[];";
124	$js .= 'for(var i=0;i<els.length;i++){fixOne(els[i]);}';
125	$js .= '}';
126	$js .= 'var started=false;';
127	$js .= 'function start(){';
128	$js .= 'if(started)return;';
129	$js .= "if(!document.body\|\|!document.body.classList.contains('os-chromeless'))return;";
130	$js .= 'started=true;';
131	$js .= 'var MO=window.MutationObserver;';
132	$js .= 'if(MO){';
133	$js .= 'var observer=new MO(function(records){';
134	$js .= 'for(var r=0;r<records.length;r++){';
135	$js .= 'var rec=records[r];';
136	$js .= "if(rec.type!=='childList')continue;";
137	$js .= 'var added=rec.addedNodes;';
138	$js .= 'for(var n=0;n<added.length;n++){walkSubtree(added[n]);}';
139	$js .= '}';
140	$js .= '});';
141	$js .= 'observer.observe(document.body,{childList:true,subtree:true});';
142	$js .= '}';
143	$js .= 'walkSubtree(document.body);';
144	// Defense in depth — pre-MutationObserver browsers fall back to the
145	// original double-walk so React-mounted components added between
146	// DOMContentLoaded and load still get neutralized.
147	$js .= 'if(!MO){';
148	$js .= "window.addEventListener('load',function(){walkSubtree(document.body);},{once:true});";
149	$js .= '}';
150	$js .= '}';
151	$js .= "if(document.readyState==='loading'){";
152	$js .= "document.addEventListener('DOMContentLoaded',start,{once:true});";
153	$js .= '}else{';
154	$js .= 'start();';
155	$js .= '}';
156	$js .= '})(' . $config . ');';
157
158	wp_print_inline_script_tag( $js );
159	}
160	add_action( 'admin_head', 'openstation_chromeless_offset_neutralizer_script', 1 );
161
162	/**
163	* Short-circuit `admin.php?openstation_menu_refresh=1` requests with
164	* a tiny inline-script response that postMessages the current menu
165	* payload to the parent shell.
166	*
167	* The full chromeless bridge is hooked on `admin_footer`, which Core
168	* only fires from `admin-header.php` / `admin-footer.php`. Plain
169	* `admin.php` without `?page=` (or one of the other dispatch paths
170	* in admin.php) never includes the footer — the file just runs the
171	* `load-{$pagenow}` hook in the `else` branch and exits. The full
172	* bridge therefore never emits its payload, and the parent's
173	* `wp.os.refreshMenu()` waits out its 8-second timeout for a
174	* message that's never coming. That's the source of "deactivating a
175	* plugin leaves its dock icons behind" — the hidden probe iframe
176	* the shell spawns to harvest the post-mutation menu lands on a
177	* page that doesn't fire admin_footer.
178	*
179	* Hooking here on `admin_init @ 99` runs AFTER `wp-admin/menu.php`
180	* has loaded (which fires `admin_menu` and populates `$menu`) but
181	* BEFORE admin.php's per-page dispatch. We can emit the payload
182	* straight away and short-circuit the rest of admin.php so the probe
183	* resolves in milliseconds instead of timing out.
184	*
185	* No admin-header / admin-footer means no `#adminmenu` DOM, so the
186	* full bridge's CSS-icon harvest doesn't run here. That's an
187	* acceptable trade-off: items whose icons live in `$menu[$i][6]`
188	* (the vast majority) still ship correctly; items that rely on a
189	* CSS `::before` on `#adminmenu .menu-icon-<slug>` fall back to the
190	* default gear icon on a live refresh until the next full page load
191	* — strictly better than today's "dock doesn't update at all."
192	*/
193	function openstation_emit_menu_refresh_probe() {
194	// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- read-only payload harvest; capability-gated by chromeless gate below.
195	if ( empty( $_GET['openstation_menu_refresh'] ) ) {
196	return;
197	}
198	if ( ! openstation_is_chromeless_request() ) {
199	return;
200	}
201	// Only short-circuit the bare `admin.php` probe — for any real
202	// admin page (plugins.php, edit.php, etc.) we still want the full
203	// admin-footer-hosted bridge to fire so the icon harvest runs.
204	$pagenow = isset( $GLOBALS['pagenow'] ) ? (string) $GLOBALS['pagenow'] : '';
205	if ( 'admin.php' !== $pagenow ) {
206	return;
207	}
208
209	$payload = openstation_build_menu_payload();
210	$encoded = wp_json_encode( $payload );
211	if ( false === $encoded ) {
212	return;
213	}
214
215	nocache_headers();
216	header( 'Content-Type: text/html; charset=utf-8' );
217
218	// Mirror the full bridge's message shape so the same shell-side
219	// listener consumes both.
220	echo '<!doctype html><html><head><meta charset="utf-8"><title></title></head><body>';
221	echo '<script>';
222	echo '(function(){try{if(window.parent&&window.parent!==window){window.parent.postMessage({type:"os-plugins-changed",payload:';
223	echo $encoded; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- wp_json_encode produces JSON-safe output.
224	echo '},window.location.origin);}}catch(e){}})();';
225	echo '</script>';
226	echo '</body></html>';
227	exit;
228	}
229	add_action( 'admin_init', 'openstation_emit_menu_refresh_probe', 99 );
230
231	/**
232	* Outputs the chromeless screen-meta bridge script.
233	*
234	* Detects Screen Options / Help panels in the iframed page and relays
235	* their availability + open/closed state to the parent desktop shell
236	* via postMessage. The parent shell uses this to render matching
237	* buttons in the window title bar.
238	*/
239	function openstation_chromeless_bridge_script() {
240	if ( ! openstation_is_chromeless_request() ) {
241	return;
242	}
243
244	/**
245	* Fires after chromeless content in OpenStation.
246	*
247	* @param string $hook_suffix The current admin page hook suffix.
248	*/
249	do_action( 'openstation_chromeless_after', isset( $GLOBALS['hook_suffix'] ) ? $GLOBALS['hook_suffix'] : '' );
250
251	// Menu payload — built from the LIVE $menu / $submenu globals
252	// populated by real admin-context bootstrapping. We capture it here
253	// rather than making the parent refetch via REST because many
254	// plugins evaluate `is_admin()` at plugin-file-load time and only
255	// register their `admin_menu` hook when it returns true; in a REST
256	// context `WP_ADMIN` isn't defined at load, so those plugins never
257	// hook in and their menu entries are missing from any endpoint we
258	// could expose. Here we're INSIDE an admin request (plugins.php,
259	// plugin-install.php, update.php, themes.php) where every plugin's
260	// menu registered normally, so `$menu` carries the authoritative
261	// post-activation state.
262	//
263	// Narrowed to the set of pages whose completion commonly mutates
264	// the admin menu (activation / deactivation / install / theme
265	// switch), plus the explicit `openstation_menu_refresh=1` signal
266	// the shell sets when `wp.os.refreshMenu()` spawns a hidden
267	// iframe to harvest a fresh payload from real admin context.
268	// Navigating to edit.php or similar doesn't change the menu so we
269	// don't bother sending a payload otherwise — the debounce +
270	// idempotent replaceItems on the parent side would still make it
271	// safe, just wasteful.
272	$menu_payload_json = 'null';
273	$pagenow = isset( $GLOBALS['pagenow'] ) ? (string) $GLOBALS['pagenow'] : '';
274	$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.
275	if (
276	$is_refresh_probe
277	\|\| in_array(
278	$pagenow,
279	array( 'plugins.php', 'plugin-install.php', 'update.php', 'themes.php' ),
280	true
281	)
282	) {
283	$encoded = wp_json_encode( openstation_build_menu_payload() );
284	if ( false !== $encoded ) {
285	$menu_payload_json = $encoded;
286	}
287	}
288
289	// Content identity — which object this admin page shows ("comment 45
290	// of post 123"). Built here, in real admin context, because the URL
291	// alone can't resolve relations like comment → parent post. Always
292	// emitted (including `null`) so navigating an iframe from an
293	// identified page to an unidentified one clears the stale identity
294	// in the parent's relations engine.
295	$content_identity_json = wp_json_encode( openstation_build_content_identity() );
296	if ( false === $content_identity_json ) {
297	$content_identity_json = 'null';
298	}
299
300	// Emit via wp_print_inline_script_tag so CSP nonces and `<script>`
301	// attribute hygiene go through Core rather than being hand-rolled.
302	$js = <<<'JS'
303	//# sourceURL=os-chromeless-bridge.js
304	( function() {
305	// Escape hatch: a chromeless page is normally only meant to live
306	// inside a openstation window iframe. If the top window IS this
307	// page, the user usually ended up here by accident — bookmarked
308	// it, followed a stale link, or got stranded by a bad portal
309	// redirect. Without an admin bar there's no toggle to turn
310	// OpenStation off, so strip the chromeless flag and reload as
311	// classic admin. That puts the admin bar back and lets the user
312	// decide what to do.
313	//
314	// Unless something is deliberately HOSTING this page top-level.
315	// `window.openStationChromelessHost` is how an embedder says "this
316	// is not an accident, and I provide the way out" — the native
317	// desktop host sets it on windows a user set free, where closing
318	// the OS window is the way back. Rescuing those would strip the
319	// flag, reload as classic, bounce through the portal, and leave a
320	// whole second desktop inside a window that was meant to hold one
321	// screen.
322	//
323	// It has to be a JS global rather than a query flag: a query flag
324	// is lost on the first in-page navigation, and the host would stop
325	// recognising its own window the moment the user clicked a link.
326	if ( ! window.parent \|\| window.parent === window ) {
327	if ( ! window.openStationChromelessHost ) {
328	try {
329	var here = new URL( window.location.href );
330	if ( here.searchParams.has( 'openstation_chromeless' ) ) {
331	here.searchParams.delete( 'openstation_chromeless' );
332	here.searchParams.delete( 'desktop_mode_portal' );
333	window.location.replace( here.toString() );
334	}
335	} catch ( err ) {
336	/* URL parse failure — let the broken state stand rather than
337	* navigate somewhere worse. */
338	}
339	}
340	// Either way the rest of the bridge is skipped: every feature
341	// below posts to `window.parent`, and there isn't one.
342	return;
343	}
344
345	/*
346	* Content-identity announcement. The server resolved which object
347	* this page shows (post / comment / attachment, plus the root post
348	* a child belongs to) while it still had real admin context; hand
349	* it to the parent's relations engine. Deliberately posted even
350	* when the identity is null — a full-page navigation away from an
351	* identified screen must CLEAR the stale identity, and every
352	* navigation re-runs admin_footer, so this doubles as the
353	* re-announce-on-navigate path.
354	*
355	* Posted FIRST, right after the top-frame escape hatch, because it
356	* depends on nothing else in this script: a page-specific runtime
357	* failure in any of the feature blocks below (screen-meta harvest,
358	* command scan, link interceptor, …) must not cost the shell its
359	* window relations. The `os-ready` signal intentionally
360	* stays LAST — it means "every listener below is wired".
361	*/
362	try {
363	window.parent.postMessage(
364	{
365	type: 'os-content-identity',
366	identity: /__OPENSTATION_CONTENT_IDENTITY__/
367	},
368	window.location.origin
369	);
370	} catch ( _err ) { /* parent gone or cross-origin */ }
371
372	/*
373	* Editor save-watcher — keeps the identity fresh across block-editor
374	* saves. Gutenberg saves over REST without a page navigation, so the
375	* announcement above (rebuilt only on admin_footer) goes stale the
376	* moment the user adds a category, links a post, or sets a featured
377	* image — the parent's Related menu and window ties would show the
378	* pre-save state until a manual reload. After every real
379	* (non-autosave) save completes, refetch a server-recomputed
380	* identity from `desktop-mode/v1/content-identity` and re-announce
381	* it; the parent engine diffs and repaints. The classic editor
382	* reloads the page on save, which re-runs the announcement
383	* naturally — this block never engages there (no `core/editor`
384	* store on the page).
385	*/
386	window.addEventListener( 'load', function () {
387	try {
388	var wpg = window.wp;
389	if ( ! wpg \|\| ! wpg.data \|\| ! wpg.apiFetch \|\| typeof wpg.data.select !== 'function' ) {
390	return;
391	}
392	var editor = wpg.data.select( 'core/editor' );
393	if (
394	! editor \|\|
395	typeof editor.isSavingPost !== 'function' \|\|
396	typeof editor.getCurrentPostId !== 'function'
397	) {
398	return;
399	}
400	var wasSaving = false;
401	var wasNew = false;
402	var inFlight = false;
403	wpg.data.subscribe( function () {
404	var saving =
405	editor.isSavingPost() &&
406	! ( editor.isAutosavingPost && editor.isAutosavingPost() );
407	if ( saving && ! wasSaving ) {
408	// Capture "is this the first real save?" on the tick
409	// where saving STARTS — after the save completes the
410	// post is no longer new and the flag reads false.
411	wasNew = !! (
412	editor.isEditedPostNew && editor.isEditedPostNew()
413	);
414	}
415	var finished = wasSaving && ! saving;
416	wasSaving = saving;
417	if ( ! finished \|\| inFlight ) {
418	return;
419	}
420	if (
421	editor.didPostSaveRequestSucceed &&
422	! editor.didPostSaveRequestSucceed()
423	) {
424	return;
425	}
426	var postId = editor.getCurrentPostId();
427	if ( ! postId ) {
428	return;
429	}
430
431	/*
432	* Announce the save as a cross-window content-change
433	* broadcast. Gutenberg saves over REST with no
434	* navigation, so the server-side chromeless-footer
435	* emitter (includes/content-changes.php) never runs
436	* here — this is the only instant path for block-editor
437	* saves. The parent's broadcast receiver fans it out;
438	* list windows showing this post type refresh.
439	*/
440	if ( editor.getCurrentPostType ) {
441	try {
442	window.parent.postMessage(
443	{
444	type: 'os-broadcast',
445	topic:
446	'os.' +
447	editor.getCurrentPostType() +
448	'.changed',
449	payload: {
450	source: 'editor',
451	action: wasNew ? 'created' : 'updated',
452	ids: [ postId ],
453	},
454	},
455	window.location.origin
456	);
457	} catch ( _err ) { /* parent gone */ }
458	}
459	inFlight = true;
460	wpg
461	.apiFetch( {
462	path: '/desktop-mode/v1/content-identity?post=' + postId,
463	} )
464	.then( function ( res ) {
465	if ( res && res.identity ) {
466	window.parent.postMessage(
467	{
468	type: 'os-content-identity',
469	identity: res.identity,
470	},
471	window.location.origin
472	);
473	}
474	} )
475	.catch( function () {
476	/* Transient — the next save retries. */
477	} )
478	.finally( function () {
479	inFlight = false;
480	} );
481	} );
482	} catch ( _err ) {
483	/* Editor stores absent or shaped differently — nothing to watch. */
484	}
485	} );
486
487	/*
488	* Observability — iframe error + network capture.
489	*
490	* Everything admin-interesting (REST failures from Gutenberg,
491	* admin-ajax 500s, plugin console warnings) fires INSIDE the
492	* iframe whose parent is the desktop shell. Without relaying
493	* those events to the shell, monitor / debug widgets would only
494	* ever see the shell's own errors — the smallest, least-
495	* interesting surface in the whole admin.
496	*
497	* Two listeners and two wrappers land here:
498	*
499	* - `error` + `unhandledrejection` on window → postMessage
500	* `os-iframe-error`. Parent dispatches `HOOKS.
501	* IFRAME_ERROR`.
502	* - `fetch` + `XMLHttpRequest` are wrapped so every completed
503	* request (including failures) posts
504	* `os-iframe-network` with `{ method, url, status,
505	* duration, failed }`. Parent dispatches `HOOKS.
506	* IFRAME_NETWORK_COMPLETED`.
507	*
508	* Privacy: request / response bodies are NEVER captured — only
509	* method, URL, status, duration. Monitor widgets that want the
510	* full payload must ship their own deeper wrapper (at which
511	* point they own the consent conversation).
512	*/
513	try {
514	window.addEventListener( 'error', function ( e ) {
515	try {
516	window.parent.postMessage( {
517	type: 'os-iframe-error',
518	kind: 'error',
519	message: e && e.message ? String( e.message ) : '',
520	filename: e && e.filename ? String( e.filename ) : null,
521	lineno: e && typeof e.lineno === 'number' ? e.lineno : null,
522	colno: e && typeof e.colno === 'number' ? e.colno : null,
523	stack: e && e.error && e.error.stack ? String( e.error.stack ) : null
524	}, window.location.origin );
525	} catch ( _err ) { /* swallow: don't let the relay compound the error */ }
526	} );
527
528	window.addEventListener( 'unhandledrejection', function ( e ) {
529	try {
530	var reason = e && 'reason' in e ? e.reason : null;
531	var message = '';
532	var stack = null;
533	if ( reason instanceof Error ) {
534	message = reason.message;
535	stack = reason.stack \|\| null;
536	} else if ( reason !== null && reason !== undefined ) {
537	try { message = String( reason ); } catch ( _s ) { message = '[unstringifiable]'; }
538	}
539	window.parent.postMessage( {
540	type: 'os-iframe-error',
541	kind: 'unhandledrejection',
542	message: message,
543	filename: null,
544	lineno: null,
545	colno: null,
546	stack: stack
547	}, window.location.origin );
548	} catch ( _err ) { /* swallow */ }
549	} );
550
551	// Devtools instrumentation slot — populated by
552	// `os-instrument-set` messages from the parent shell.
553	// Mutable: parent overwrites the whole object on every change
554	// (header add/remove, observe toggle).
555	//
556	// Headers: { name: 'value' } — already pre-merged by the parent
557	// (RFC 7230 §3.2.2 join applied there).
558	// Observe: when true, network reports include request +
559	// response headers; otherwise only the privacy-conscious
560	// summary travels parent-bound.
561	window.__wpdInstrument = window.__wpdInstrument \|\| { headers: {}, observe: false };
562	try {
563	window.addEventListener( 'message', function ( ev ) {
564	if ( ev.origin !== window.location.origin \|\| ev.source !== window.parent ) {
565	return;
566	}
567	var d = ev && ev.data;
568	if ( ! d \|\| typeof d !== 'object' \|\| d.type !== 'os-instrument-set' ) {
569	return;
570	}
571	window.__wpdInstrument = {
572	headers: d.headers && typeof d.headers === 'object' ? d.headers : {},
573	observe: !! d.observe
574	};
575	} );
576	} catch ( _err ) { /* swallow — instrumentation is best-effort */ }
577
578	var osReportNetwork = function ( method, url, status, duration, failed, extra ) {
579	try {
580	var msg = {
581	type: 'os-iframe-network',
582	method: String( method \|\| 'GET' ).toUpperCase(),
583	url: String( url \|\| '' ),
584	status: typeof status === 'number' ? status : 0,
585	duration: typeof duration === 'number' ? duration : 0,
586	failed: !! failed
587	};
588	if ( extra && window.__wpdInstrument && window.__wpdInstrument.observe ) {
589	if ( extra.requestHeaders ) {
590	msg.requestHeaders = extra.requestHeaders;
591	}
592	if ( extra.responseHeaders ) {
593	msg.responseHeaders = extra.responseHeaders;
594	}
595	}
596	window.parent.postMessage( msg, window.location.origin );
597	} catch ( _err ) { /* swallow */ }
598	};
599
600	// Helper — when an admin-side request returns 401/403 the
601	// session is most likely toast. Don't wait up to 60s for the
602	// next heartbeat tick to surface core's auth-check modal —
603	// force an immediate tick. `wp.heartbeat.connectNow()` is
604	// safe to call repeatedly; we still debounce to avoid storms
605	// when many requests fail at once. Same-origin gate keeps us
606	// out of third-party 403s. The URL gate avoids looping on
607	// heartbeat itself (heartbeat shouldn't 403 — but if it does
608	// the recursive connectNow would not help anyway).
609	var osAuthCheckCooldownUntil = 0;
610	var osMaybeForceAuthCheck = function ( status, url ) {
611	if ( status !== 401 && status !== 403 ) {
612	return;
613	}
614	var urlStr = String( url \|\| '' );
615	if ( ! urlStr ) {
616	return;
617	}
618	// Cross-origin URLs aren't ours to interpret.
619	try {
620	var resolved = new URL( urlStr, window.location.href );
621	if ( resolved.origin !== window.location.origin ) {
622	return;
623	}
624	// Skip heartbeat to avoid recursion. Skip wp-login
625	// because the login iframe itself returns 4xx during
626	// the auth handshake and we don't want to retrigger.
627	if (
628	resolved.pathname.indexOf( '/wp-admin/admin-ajax.php' ) !== -1
629	&& /(?:^\|&\|\?)action=heartbeat(?:&\|$)/.test( resolved.search )
630	) {
631	return;
632	}
633	if ( resolved.pathname.indexOf( '/wp-login.php' ) !== -1 ) {
634	return;
635	}
636	} catch ( _err ) {
637	return;
638	}
639	var now = Date.now();
640	if ( now < osAuthCheckCooldownUntil ) {
641	return;
642	}
643	osAuthCheckCooldownUntil = now + 5000;
644	try {
645	if (
646	window.wp
647	&& window.wp.heartbeat
648	&& typeof window.wp.heartbeat.connectNow === 'function'
649	) {
650	window.wp.heartbeat.connectNow();
651	}
652	} catch ( _err ) { /* swallow */ }
653	};
654
655	// Helper — convert an arbitrary `init.headers` shape into a
656	// plain `{ name: value }` map so the instrument layer can
657	// merge contributed headers without caring whether the caller
658	// passed a Headers, an array of pairs, or a plain object.
659	var osHeadersToObject = function ( h ) {
660	var out = {};
661	if ( ! h ) {
662	return out;
663	}
664	if ( typeof Headers !== 'undefined' && h instanceof Headers ) {
665	try {
666	h.forEach( function ( v, k ) { out[ k ] = v; } );
667	} catch ( _e ) { /* swallow */ }
668	return out;
669	}
670	if ( Array.isArray( h ) ) {
671	for ( var i = 0; i < h.length; i++ ) {
672	if ( h[ i ] && h[ i ].length >= 2 ) {
673	out[ h[ i ][ 0 ] ] = h[ i ][ 1 ];
674	}
675	}
676	return out;
677	}
678	if ( typeof h === 'object' ) {
679	for ( var k in h ) {
680	if ( Object.prototype.hasOwnProperty.call( h, k ) ) {
681	out[ k ] = h[ k ];
682	}
683	}
684	}
685	return out;
686	};
687
688	// Helper — snapshot the contributed-header set at request time.
689	// Header values can theoretically come and go between requests
690	// (parent ref-counts contributions) so we read fresh on every
691	// call rather than caching at wrap time.
692	var osContributedHeaders = function () {
693	var inst = window.__wpdInstrument \|\| {};
694	var headers = inst.headers \|\| {};
695	var out = {};
696	for ( var k in headers ) {
697	if ( Object.prototype.hasOwnProperty.call( headers, k ) && typeof headers[ k ] === 'string' ) {
698	out[ k ] = headers[ k ];
699	}
700	}
701	return out;
702	};
703
704	// Wrap fetch. Called AFTER `admin_footer` runs — plugin code
705	// using fetch during synchronous page boot (rare in wp-admin)
706	// bypasses this, but lazy calls (the common case) are captured.
707	//
708	// Two layers of behavior:
709	//
710	// - Always: timing + status reporting (the original
711	// observability contract).
712	// - When `__wpdInstrument.headers` is non-empty: merge those
713	// headers into the request before dispatch so devtools can
714	// tag every outgoing call without each plugin reinventing
715	// a fetch wrapper.
716	// - When `__wpdInstrument.observe`: also relay request +
717	// response headers in the parent-bound network message.
718	if ( typeof window.fetch === 'function' ) {
719	var osOrigFetch = window.fetch;
720	window.fetch = function ( input, init ) {
721	var start = ( typeof performance !== 'undefined' && performance.now )
722	? performance.now()
723	: Date.now();
724	var method = 'GET';
725	var url = '';
726	if ( typeof input === 'string' ) {
727	url = input;
728	if ( init && typeof init.method === 'string' ) {
729	method = init.method;
730	}
731	} else if ( input && typeof input === 'object' ) {
732	url = input.url \|\| '';
733	method = ( input.method \|\| ( init && init.method ) \|\| 'GET' );
734	}
735
736	// Header contribution + capture. Build a single
737	// `Headers` instance so contributed values overwrite /
738	// stack predictably regardless of the caller's input
739	// shape, then re-attach to a cloned init.
740	var contributed = osContributedHeaders();
741	var observe = window.__wpdInstrument && window.__wpdInstrument.observe;
742	var requestHeaders = null;
743	var hasContributed = false;
744	for ( var ck in contributed ) {
745	if ( Object.prototype.hasOwnProperty.call( contributed, ck ) ) {
746	hasContributed = true;
747	break;
748	}
749	}
750	if ( hasContributed \|\| observe ) {
751	var existing = osHeadersToObject( init && init.headers );
752	if ( input && typeof input === 'object' && input.headers ) {
753	var fromReq = osHeadersToObject( input.headers );
754	for ( var rk in fromReq ) {
755	if ( Object.prototype.hasOwnProperty.call( fromReq, rk ) && ! ( rk in existing ) ) {
756	existing[ rk ] = fromReq[ rk ];
757	}
758	}
759	}
760	for ( var ck2 in contributed ) {
761	if ( Object.prototype.hasOwnProperty.call( contributed, ck2 ) ) {
762	existing[ ck2 ] = contributed[ ck2 ];
763	}
764	}
765	if ( hasContributed ) {
766	init = init ? Object.assign( {}, init ) : {};
767	init.headers = existing;
768	arguments[ 1 ] = init;
769	}
770	if ( observe ) {
771	requestHeaders = existing;
772	}
773	}
774
775	var promise;
776	try {
777	promise = osOrigFetch.apply( this, arguments );
778	} catch ( sync ) {
779	osReportNetwork( method, url, 0, 0, true, requestHeaders ? { requestHeaders: requestHeaders } : null );
780	throw sync;
781	}
782	return promise.then(
783	function ( res ) {
784	var dur = ( ( typeof performance !== 'undefined' && performance.now )
785	? performance.now()
786	: Date.now() ) - start;
787	var extra = null;
788	if ( requestHeaders ) {
789	extra = { requestHeaders: requestHeaders };
790	try {
791	var rh = {};
792	if ( res && res.headers && typeof res.headers.forEach === 'function' ) {
793	res.headers.forEach( function ( v, k ) { rh[ k ] = v; } );
794	}
795	extra.responseHeaders = rh;
796	} catch ( _hErr ) { /* swallow */ }
797	}
798	osReportNetwork( method, url, res.status, Math.round( dur ), ! res.ok, extra );
799	osMaybeForceAuthCheck( res.status, url );
800	return res;
801	},
802	function ( err ) {
803	var dur = ( ( typeof performance !== 'undefined' && performance.now )
804	? performance.now()
805	: Date.now() ) - start;
806	osReportNetwork( method, url, 0, Math.round( dur ), true, requestHeaders ? { requestHeaders: requestHeaders } : null );
807	throw err;
808	}
809	);
810	};
811	}
812
813	// Wrap XHR — admin-ajax runs through jQuery which runs through
814	// XHR, so fetch-only instrumentation would miss most of the
815	// legacy admin surface. Record method + URL on open; fire on
816	// loadend regardless of success / failure.
817	//
818	// Header contribution layer: `setRequestHeader` after open() but
819	// before send() — that's the only window the spec allows. The
820	// caller's own headers are tracked so observation can include
821	// them alongside the contributed ones.
822	if ( typeof XMLHttpRequest !== 'undefined' ) {
823	var osOrigOpen = XMLHttpRequest.prototype.open;
824	var osOrigSend = XMLHttpRequest.prototype.send;
825	var osOrigSetHeader = XMLHttpRequest.prototype.setRequestHeader;
826	XMLHttpRequest.prototype.open = function ( method, url ) {
827	try {
828	this.__wpdMethod = method;
829	this.__wpdUrl = url;
830	this.__wpdReqHeaders = {};
831	} catch ( _err ) { /* frozen instance — skip */ }
832	return osOrigOpen.apply( this, arguments );
833	};
834	XMLHttpRequest.prototype.setRequestHeader = function ( name, value ) {
835	try {
836	if ( ! this.__wpdReqHeaders ) {
837	this.__wpdReqHeaders = {};
838	}
839	this.__wpdReqHeaders[ name ] = value;
840	} catch ( _err ) { /* swallow */ }
841	return osOrigSetHeader.apply( this, arguments );
842	};
843	XMLHttpRequest.prototype.send = function () {
844	var xhr = this;
845	var start = ( typeof performance !== 'undefined' && performance.now )
846	? performance.now()
847	: Date.now();
848
849	// Apply contributed headers right before send. Doing it
850	// here rather than in open() means contributions added
851	// after open() (e.g. in async-built request flows) still
852	// land on the wire.
853	var contributed = osContributedHeaders();
854	var observe = window.__wpdInstrument && window.__wpdInstrument.observe;
855	for ( var hk in contributed ) {
856	if ( Object.prototype.hasOwnProperty.call( contributed, hk ) ) {
857	try {
858	osOrigSetHeader.call( xhr, hk, contributed[ hk ] );
859	if ( ! xhr.__wpdReqHeaders ) {
860	xhr.__wpdReqHeaders = {};
861	}
862	xhr.__wpdReqHeaders[ hk ] = contributed[ hk ];
863	} catch ( _hErr ) { /* `setRequestHeader` rejects forbidden names — skip */ }
864	}
865	}
866
867	var fire = function () {
868	var dur = ( ( typeof performance !== 'undefined' && performance.now )
869	? performance.now()
870	: Date.now() ) - start;
871	var extra = null;
872	if ( observe ) {
873	extra = {
874	requestHeaders: xhr.__wpdReqHeaders \|\| {}
875	};
876	try {
877	var raw = xhr.getAllResponseHeaders ? xhr.getAllResponseHeaders() : '';
878	var resHeaders = {};
879	if ( raw && typeof raw === 'string' ) {
880	var lines = raw.trim().split( /[\r\n]+/ );
881	for ( var li = 0; li < lines.length; li++ ) {
882	var idx = lines[ li ].indexOf( ':' );
883	if ( idx > 0 ) {
884	resHeaders[ lines[ li ].slice( 0, idx ).trim() ] = lines[ li ].slice( idx + 1 ).trim();
885	}
886	}
887	}
888	extra.responseHeaders = resHeaders;
889	} catch ( _rErr ) { /* swallow */ }
890	}
891	osReportNetwork(
892	xhr.__wpdMethod,
893	xhr.__wpdUrl,
894	xhr.status,
895	Math.round( dur ),
896	xhr.status === 0 \|\| xhr.status >= 400,
897	extra
898	);
899	osMaybeForceAuthCheck( xhr.status, xhr.__wpdUrl );
900	};
901	try {
902	xhr.addEventListener( 'loadend', fire );
903	} catch ( _err ) { /* swallow */ }
904	return osOrigSend.apply( this, arguments );
905	};
906	}
907
908	// Wrap sendBeacon — used by analytics + telemetry. The Beacon
909	// API doesn't accept headers (the entire point of beacons is
910	// minimal payload + best-effort delivery). When devtools have
911	// contributed headers we silently fall back to fetch with
912	// `keepalive: true`, which is the closest semantic match —
913	// guaranteed POST + same fire-and-forget intent + custom headers
914	// allowed. Without contributions we just relay the call.
915	if ( typeof navigator !== 'undefined' && typeof navigator.sendBeacon === 'function' ) {
916	var osOrigBeacon = navigator.sendBeacon.bind( navigator );
917	navigator.sendBeacon = function ( url, data ) {
918	var contributed = osContributedHeaders();
919	var hasContributed = false;
920	for ( var ck in contributed ) {
921	if ( Object.prototype.hasOwnProperty.call( contributed, ck ) ) {
922	hasContributed = true;
923	break;
924	}
925	}
926	var start = ( typeof performance !== 'undefined' && performance.now )
927	? performance.now()
928	: Date.now();
929	if ( ! hasContributed ) {
930	var ok = false;
931	try { ok = !! osOrigBeacon( url, data ); } catch ( _e ) { ok = false; }
932	osReportNetwork( 'POST', url, ok ? 200 : 0, 0, ! ok );
933	return ok;
934	}
935	try {
936	var observe = window.__wpdInstrument && window.__wpdInstrument.observe;
937	var headers = {};
938	for ( var hk2 in contributed ) {
939	if ( Object.prototype.hasOwnProperty.call( contributed, hk2 ) ) {
940	headers[ hk2 ] = contributed[ hk2 ];
941	}
942	}
943	window.fetch( url, {
944	method: 'POST',
945	body: data,
946	keepalive: true,
947	credentials: 'same-origin',
948	headers: headers
949	} ).then(
950	function ( res ) {
951	var dur = ( ( typeof performance !== 'undefined' && performance.now )
952	? performance.now()
953	: Date.now() ) - start;
954	osReportNetwork( 'POST', url, res.status, Math.round( dur ), ! res.ok, observe ? { requestHeaders: headers } : null );
955	},
956	function () {
957	var dur = ( ( typeof performance !== 'undefined' && performance.now )
958	? performance.now()
959	: Date.now() ) - start;
960	osReportNetwork( 'POST', url, 0, Math.round( dur ), true, observe ? { requestHeaders: headers } : null );
961	}
962	);
963	return true;
964	} catch ( _bErr ) {
965	return false;
966	}
967	};
968	}
969	} catch ( _err ) {
970	/* Whole observability block is best-effort. If something in
971	* the environment disagrees (frozen prototypes, CSP blocking
972	* postMessage, etc.) we don't want to tank the rest of the
973	* chromeless bridge. */
974	}
975
976	/*
977	* Menu-changed signal.
978	*
979	* The shell's dock is built from `$menu` at page-load time and
980	* then frozen — the iframe reload that follows plugin
981	* activation / deactivation / installation doesn't tell the
982	* parent the admin menu just mutated. This handler fires inside
983	* the iframe that JUST LOADED plugins.php (or a sibling menu-
984	* affecting page) and hands the parent a fresh payload the PHP
985	* side built server-side from the live $menu globals.
986	*
987	* Why not a REST roundtrip: plugins commonly gate their
988	* `admin_menu` registration on `is_admin()` evaluated AT PLUGIN
989	* LOAD. REST requests don't define `WP_ADMIN` at plugin-load
990	* time, so those plugins never register and a REST-context
991	* bootstrap can't retroactively make them. By capturing the
992	* payload here, inside a real admin context, we get the
993	* authoritative post-activation state that any REST endpoint
994	* would miss.
995	*
996	* Covered pages:
997	* - plugins.php — activate, deactivate, bulk, delete.
998	* - plugin-install.php — install new, install-and-activate.
999	* - update.php — update / install handler (install-
1000	* plugin + upload-plugin actions).
1001	* - themes.php — theme switch (rare but can add menus).
1002	*/
1003	var __OPENSTATION_MENU_PAYLOAD__ = /__OPENSTATION_MENU_PAYLOAD__/;
1004	var __OPENSTATION_MENU_SIG__ = /__OPENSTATION_MENU_SIG__/;
1005	/*
1006	* Icon harvest from the iframe's authoritative #adminmenu.
1007	*
1008	* The server-side payload only knows what the plugin set on
1009	* $menu[$i][6]. Plugins that register their icon with 'none' /
1010	* 'div' and paint it via a CSS rule on `#adminmenu .menu-icon-X`
1011	* (All in One WP Migration, plus a long tail of older plugins)
1012	* end up serialized with the gear fallback.
1013	*
1014	* On a regular page load the parent shell's resolveIcon() falls
1015	* back to the parent's hidden #adminmenu DOM and reads the icon
1016	* from there — but on a live activation the parent's #adminmenu
1017	* is stale (it was rendered before the plugin existed). This
1018	* iframe just rendered plugins.php in real admin context, so its
1019	* own #adminmenu DOM IS authoritative; harvest each menu item's
1020	* resolved icon here and patch the dockItems before postMessage.
1021	*/
1022	try {
1023	if (
1024	__OPENSTATION_MENU_PAYLOAD__
1025	&& Array.isArray( __OPENSTATION_MENU_PAYLOAD__.dockItems )
1026	) {
1027	var __wpdAdminMenu = document.getElementById( 'adminmenu' );
1028	if ( __wpdAdminMenu ) {
1029	var __wpdHarvest = {};
1030	var __wpdLinks = __wpdAdminMenu.querySelectorAll( 'li.menu-top > a' );
1031	for ( var __wpdLi = 0; __wpdLi < __wpdLinks.length; __wpdLi++ ) {
1032	var __wpdLink = __wpdLinks[ __wpdLi ];
1033	var __wpdKey;
1034	try {
1035	var __wpdU = new URL( __wpdLink.href \|\| '', window.location.href );
1036	__wpdKey = ( __wpdU.pathname.split( '/' ).pop() \|\| '' ) + __wpdU.search;
1037	} catch ( __wpdE1 ) { continue; }
1038	if ( ! __wpdKey ) { continue; }
1039	var __wpdImgWrap = __wpdLink.querySelector( '.wp-menu-image' );
1040	if ( ! __wpdImgWrap ) { continue; }
1041
1042	/* (a) <img src> nested inside .wp-menu-image */
1043	var __wpdImg = __wpdImgWrap.querySelector( 'img' );
1044	if ( __wpdImg && __wpdImg.src ) {
1045	__wpdHarvest[ __wpdKey ] = __wpdImg.src;
1046	continue;
1047	}
1048
1049	/* (b) dashicon class on the wrap div itself */
1050	var __wpdDash = ( __wpdImgWrap.className \|\| '' ).match( /\bdashicons-[\w-]+\b/ );
1051	if (
1052	__wpdDash
1053	&& __wpdDash[ 0 ] !== 'dashicons-before'
1054	&& __wpdDash[ 0 ] !== 'dashicons-admin-generic'
1055	) {
1056	__wpdHarvest[ __wpdKey ] = __wpdDash[ 0 ];
1057	continue;
1058	}
1059
1060	/* (c) ::before background-image — pass the raw
1061	* `url(...)` CSS value through; the parent's
1062	* resolveIcon can hand it straight to _makeSvgIcon
1063	* regardless of whether it's base64-encoded SVG,
1064	* URL-encoded SVG, or a plain http(s) URL. */
1065	try {
1066	var __wpdBefore = window.getComputedStyle( __wpdImgWrap, '::before' );
1067	var __wpdBg = __wpdBefore && __wpdBefore.backgroundImage;
1068	if ( __wpdBg && __wpdBg !== 'none' && __wpdBg.indexOf( 'url("")' ) === -1 ) {
1069	__wpdHarvest[ __wpdKey ] = __wpdBg;
1070	continue;
1071	}
1072	/* (d) background on the wrap itself */
1073	var __wpdWrapBg = window.getComputedStyle( __wpdImgWrap ).backgroundImage;
1074	if ( __wpdWrapBg && __wpdWrapBg !== 'none' && __wpdWrapBg.indexOf( 'url("")' ) === -1 ) {
1075	__wpdHarvest[ __wpdKey ] = __wpdWrapBg;
1076	}
1077	} catch ( __wpdE2 ) { /* getComputedStyle may throw on detached nodes */ }
1078	}
1079
1080	var __wpdItems = __OPENSTATION_MENU_PAYLOAD__.dockItems;
1081	for ( var __wpdDi = 0; __wpdDi < __wpdItems.length; __wpdDi++ ) {
1082	var __wpdItem = __wpdItems[ __wpdDi ];
1083	if ( ! __wpdItem \|\| __wpdItem.icon !== 'dashicons-admin-generic' ) { continue; }
1084	if ( typeof __wpdItem.url !== 'string' \|\| ! __wpdItem.url ) { continue; }
1085	try {
1086	var __wpdItemU = new URL( __wpdItem.url, window.location.href );
1087	var __wpdItemKey = ( __wpdItemU.pathname.split( '/' ).pop() \|\| '' ) + __wpdItemU.search;
1088	if ( __wpdHarvest[ __wpdItemKey ] ) {
1089	__wpdItem.icon = __wpdHarvest[ __wpdItemKey ];
1090	}
1091	} catch ( __wpdE3 ) { /* malformed url — leave icon alone */ }
1092	}
1093	}
1094	}
1095	} catch ( __wpdHarvestErr ) {
1096	/* Harvest is best-effort; on any failure we still ship the
1097	* server-built payload, which is exactly the pre-fix behavior. */
1098	}
1099	/*
1100	* Menu payload / signature target: the SHELL, i.e. the top window —
1101	* not the immediate parent. For a normal window iframe the two are
1102	* the same frame, but the bulk updater nests: update-core.php (the
1103	* window iframe) hosts a progress iframe of `update.php?action=
1104	* update-selected`, whose `iframe_footer()` fires `admin_footer`
1105	* AFTER the upgrades ran — exactly the fresh payload the shell
1106	* wants. Posting that to `window.parent` hands it to the
1107	* update-core.php page, which has no listener, and the dock badge
1108	* stays stale (GH#296). `window.top` reaches the shell from any
1109	* nesting depth; the targetOrigin pin means a cross-origin top
1110	* (foreign page iframing wp-admin) simply never receives it.
1111	*/
1112	try {
1113	var __wpdShell = window.top \|\| window.parent;
1114	if ( __OPENSTATION_MENU_PAYLOAD__ ) {
1115	__wpdShell.postMessage(
1116	{
1117	type: 'os-plugins-changed',
1118	payload: __OPENSTATION_MENU_PAYLOAD__
1119	},
1120	window.location.origin
1121	);
1122	} else if ( __OPENSTATION_MENU_SIG__ ) {
1123	/*
1124	* No full payload on this page — but we still ship the cheap
1125	* menu signature so the shell can notice a menu change that
1126	* happened somewhere off the plugins/themes/update path (a
1127	* CPT registered via a settings tool, a plugin that adds a
1128	* menu on save, …) and spend a refresh probe only then.
1129	* GH#325.
1130	*/
1131	__wpdShell.postMessage(
1132	{
1133	type: 'os-menu-signature',
1134	sig: __OPENSTATION_MENU_SIG__
1135	},
1136	window.location.origin
1137	);
1138	}
1139	} catch ( err ) {
1140	/* postMessage throws only on structured-clone failures, which
1141	* this static payload won't hit. Swallow defensively so a
1142	* wayward extension wrapping window.parent can't break the
1143	* rest of the bridge. */
1144	}
1145
1146	/*
1147	* Link & form interceptor.
1148	*
1149	* Every same-origin wp-admin <a> href and <form> action gets the
1150	* `openstation_chromeless=1` flag appended so navigation inside the iframe stays
1151	* chromeless. Without this, a stray link to /wp-admin/edit.php (see
1152	* Gutenberg's fullscreen close button, help-tab links, "Return to
1153	* posts" affordances, etc.) re-renders the full classic admin inside
1154	* our window.
1155	*
1156	* Excluded from rewriting:
1157	* - modifier clicks (cmd/ctrl/shift/alt) — user wants to open a
1158	* new tab/window, respect that
1159	* - target="_blank" / target="_top" / target="_parent"
1160	* - download attribute
1161	* - in-page anchors (#)
1162	* - mailto:, tel:, javascript: schemes
1163	* - cross-origin URLs
1164	* - URLs that already carry openstation_chromeless=
1165	*/
1166	function rewriteAdminUrl( href, base ) {
1167	if ( ! href \|\| href.charAt( 0 ) === '#' ) {
1168	return null;
1169	}
1170	if ( /^(mailto:\|tel:\|javascript:\|data:)/i.test( href ) ) {
1171	return null;
1172	}
1173	var url;
1174	try {
1175	url = new URL( href, base );
1176	} catch ( err ) {
1177	return null;
1178	}
1179	if ( url.origin !== window.location.origin ) {
1180	return null;
1181	}
1182	if ( url.pathname.indexOf( '/wp-admin/' ) === -1 ) {
1183	return null;
1184	}
1185	if ( url.searchParams.has( 'openstation_chromeless' ) ) {
1186	return null;
1187	}
1188	url.searchParams.set( 'openstation_chromeless', '1' );
1189	return url.toString();
1190	}
1191
1192	/*
1193	* Classify a link so we know whether to rewrite it (admin),
1194	* escalate it to the parent shell (external / non-admin), or let
1195	* the browser navigate naturally (mailto, anchor, download, etc.).
1196	*
1197	* 'admin' — same-origin /wp-admin/ URL we rewrite in place.
1198	* 'external' — http(s) URL we want the parent shell to open
1199	* as a sub-tab instead of navigating the iframe
1200	* out of wp-admin. Covers both cross-origin
1201	* links (plugin author sites, external docs) AND
1202	* same-origin non-admin links (the site's own
1203	* front-end pages).
1204	* 'passthrough' — anything else (mailto, tel, javascript, data,
1205	* anchors, unparseable). The browser handles it.
1206	*/
1207	function classifyLink( href, base ) {
1208	if ( ! href \|\| href.charAt( 0 ) === '#' ) {
1209	return 'passthrough';
1210	}
1211	if ( /^(mailto:\|tel:\|javascript:\|data:)/i.test( href ) ) {
1212	return 'passthrough';
1213	}
1214	var url;
1215	try {
1216	url = new URL( href, base );
1217	} catch ( err ) {
1218	return 'passthrough';
1219	}
1220	if ( url.protocol !== 'http:' && url.protocol !== 'https:' ) {
1221	return 'passthrough';
1222	}
1223	if (
1224	url.origin === window.location.origin &&
1225	url.pathname.indexOf( '/wp-admin/' ) !== -1
1226	) {
1227	return 'admin';
1228	}
1229	return 'external';
1230	}
1231
1232	/*
1233	* Rewrite a link's href to carry `_wp_http_referer=<this page>`.
1234	*
1235	* The iframe-side twin of `stampSourceReferer()` in
1236	* `src/window/iframe-bridge.ts`, for links the interceptor yields
1237	* on: the parent never sees the click, so it can't stamp them.
1238	* `wp_get_referer()` reads `$_REQUEST['_wp_http_referer']` ahead
1239	* of the raw header, so the param survives any `Referrer-Policy`.
1240	*
1241	* Same three guards as the parent, for the same reasons: never
1242	* overwrite a referer the markup already supplied, stay
1243	* same-origin (a mis-attributed referer is worse than none), and
1244	* strip the chromeless flag from the hint so it doesn't loop into
1245	* whatever redirect WP builds out of it.
1246	*/
1247	function stampSourceRefererOnLink( link ) {
1248	try {
1249	var target = new URL( link.getAttribute( 'href' ), window.location.href );
1250	if ( target.origin !== window.location.origin ) {
1251	return;
1252	}
1253	if ( target.searchParams.has( '_wp_http_referer' ) ) {
1254	return;
1255	}
1256	var source = new URL( window.location.href );
1257	source.searchParams.delete( 'openstation_chromeless' );
1258	target.searchParams.set(
1259	'_wp_http_referer',
1260	source.pathname + ( source.search ? source.search : '' )
1261	);
1262	link.setAttribute( 'href', target.toString() );
1263	} catch ( err ) {
1264	/* Unparseable href, so leave the link exactly as it was. */
1265	}
1266	}
1267
1268	/*
1269	* The text a link actually SHOWS, for use as a window title.
1270	*
1271	* `textContent` is the wrong source on its own. WP Core routinely
1272	* pairs a terse visible label with a longer screen-reader one
1273	* inside the same anchor, and reads back as both at once. Drop the
1274	* screen-reader half (`.screen-reader-text` is Core's own class for
1275	* it, `.hidden` covers the markup that toggles) and collapse the
1276	* indentation whitespace the templates leave behind.
1277	*
1278	* The parent treats a label harvested this way as provisional and
1279	* upgrades it to the destination page's own title once the iframe
1280	* loads — see `titleFromPage` in `src/types.ts`.
1281	*/
1282	/*
1283	* The wp-admin filename a URL points at (`revision.php`), or an
1284	* empty string when it can't be read. Used to tell "a different
1285	* admin screen" from "another view of this one" without needing
1286	* the shell's window-slug rules.
1287	*/
1288	function adminFileOf( url ) {
1289	try {
1290	return new URL( url, window.location.href ).pathname.split( '/' ).pop();
1291	} catch ( err ) {
1292	return '';
1293	}
1294	}
1295
1296	function visibleLinkText( link ) {
1297	var clone = link.cloneNode( true );
1298	var muted = clone.querySelectorAll( '.screen-reader-text, .hidden' );
1299	for ( var i = 0; i < muted.length; i++ ) {
1300	if ( muted[ i ].parentNode ) {
1301	muted[ i ].parentNode.removeChild( muted[ i ] );
1302	}
1303	}
1304	return ( clone.textContent \|\| '' ).replace( /\s+/g, ' ' ).trim();
1305	}
1306
1307	document.addEventListener( 'click', function ( e ) {
1308	if ( e.defaultPrevented ) {
1309	return;
1310	}
1311	if ( e.button !== 0 \|\| e.metaKey \|\| e.ctrlKey \|\| e.shiftKey \|\| e.altKey ) {
1312	return;
1313	}
1314	var link = e.target && e.target.closest ? e.target.closest( 'a[href]' ) : null;
1315	if ( ! link ) {
1316	return;
1317	}
1318	/*
1319	* A link that names another browsing context.
1320	*
1321	* `_blank` on a /wp-admin/ URL means "open this admin screen
1322	* without losing the one I am on", and inside the shell that
1323	* is another window rather than a browser tab that drops the
1324	* user out of the desktop. Claimed only when the destination
1325	* is a DIFFERENT wp-admin file: whether two URLs on one file
1326	* are the same "page" depends on the shell's window-slug
1327	* rules, which the iframe can't see, and guessing wrong makes
1328	* the parent navigate the window the link was clicked in.
1329	*
1330	* Every other target yields. `_top` / `_parent` are a
1331	* deliberate "replace the whole shell" and a page's only
1332	* escape hatch; a named target (`wp-preview-4`) reuses one
1333	* specific tab across clicks, which a window cannot honour;
1334	* and any target on a non-admin URL has no window to open
1335	* into.
1336	*/
1337	var newContext = false;
1338	var linkTarget = link.target \|\| '';
1339	if ( linkTarget !== '' && linkTarget !== '_self' ) {
1340	var claimable =
1341	linkTarget === '_blank' &&
1342	classifyLink( link.getAttribute( 'href' ), window.location.href ) === 'admin' &&
1343	adminFileOf( link.getAttribute( 'href' ) ) !== '' &&
1344	adminFileOf( link.getAttribute( 'href' ) ) !== adminFileOf( window.location.href );
1345	if ( ! claimable ) {
1346	return;
1347	}
1348	newContext = true;
1349	}
1350	if ( link.hasAttribute( 'download' ) ) {
1351	return;
1352	}
1353	/*
1354	* Activity-footprint launcher. A "View activity footprint" row
1355	* action (added to the Users list table by
1356	* `openstation_user_footprint_row_action`) carries the target
1357	* user id in `data-os-footprint`. The iframe has no
1358	* shell API of its own, so we escalate the click to the parent
1359	* shell, which opens the My WordPress window on that user's
1360	* footprint. Checked BEFORE classifyLink so the link's real
1361	* href — a graceful profile-edit fallback for no-JS — is never
1362	* followed inside the shell. Modifier-key / middle clicks are
1363	* already filtered above, so cmd/ctrl-click still opens that
1364	* fallback in a new browser tab.
1365	*/
1366	var footprintAttr = link.getAttribute( 'data-os-footprint' );
1367	if ( footprintAttr ) {
1368	var footprintUid = parseInt( footprintAttr, 10 );
1369	if ( footprintUid > 0 ) {
1370	e.preventDefault();
1371	try {
1372	window.parent.postMessage(
1373	{
1374	type: 'os-open-user-footprint',
1375	userId: footprintUid,
1376	userName: link.getAttribute( 'data-os-footprint-name' ) \|\| ''
1377	},
1378	window.location.origin
1379	);
1380	} catch ( footprintErr ) {
1381	/* Same-origin postMessage can only fail in a sandbox
1382	* we don't support — swallow rather than block the
1383	* click. */
1384	}
1385	return;
1386	}
1387	}
1388	/*
1389	* `aria-button-if-js` is WP core's own marker for "this anchor
1390	* is really an in-page button; the href is only the no-JS
1391	* fallback". Core stamps `role="button"` on every one of them
1392	* (`wp-admin/js/common.js`), and the owning script binds a
1393	* bubble-phase handler that calls preventDefault: media-grid.js
1394	* for the Media Library's uploader toggle, wp-lists for the
1395	* comment row actions, tags.js for term Delete, updates.js
1396	* for the auto-update toggles.
1397	*
1398	* Our capture-phase handler runs first, so hijacking these
1399	* substitutes the fallback URL for the in-page action the user
1400	* actually asked for. On the Media Library grid that showed up as
1401	* two uploaders at once: the shell opened a window for
1402	* `media-new.php` (the fallback) while media-grid.js's
1403	* `addNewClickHandler` still expanded the inline drop zone in the
1404	* Media window behind it, and closing the window left the drop
1405	* zone stranded above the grid.
1406	*
1407	* The class does NOT promise a handler, though. The Media list
1408	* table stamps it on Trash / Restore / Delete Permanently
1409	* (`.submitdelete`, `class-wp-media-list-table.php`) and binds
1410	* nothing: the href really is the navigation. Yielding is still
1411	* right for those (the inline `onclick` confirm runs, and
1412	* cancelling actually cancels, which it did not when we
1413	* preventDefaulted in capture ahead of it), but the parent's
1414	* destructive-action path used to stamp `_wp_http_referer` on
1415	* them, and a raw navigation loses that. See `stampSourceReferer`
1416	* in `src/window/iframe-bridge.ts` for the full rationale; the
1417	* short version is that a `Referrer-Policy` of `strict-origin` or
1418	* tighter downgrades the `Referer` header to the bare origin,
1419	* which `post.php` matches against neither `post.php` nor
1420	* `post-new.php`, so `$sendback` stays the origin and the window
1421	* lands on the site front page instead of back on the list.
1422	*
1423	* So stamp the hint ourselves before yielding. In here the
1424	* source page IS `window.location`, which makes this the same
1425	* value the parent would have computed, minus the round trip.
1426	*/
1427	if ( link.classList.contains( 'aria-button-if-js' ) ) {
1428	if ( link.classList.contains( 'submitdelete' ) ) {
1429	stampSourceRefererOnLink( link );
1430	}
1431	return;
1432	}
1433	/*
1434	* Same story as `aria-button-if-js` above, minus the marker
1435	* class: `plugin-install.php`'s "Upload Plugin" href is a
1436	* no-JS fallback, and plugin-install.js binds a bubble-phase
1437	* handler that opens the drop zone in place above the plugin
1438	* cards. Our capture handler used to win and navigate to
1439	* `?tab=upload`, which shows the uploader with no cards.
1440	*
1441	* On that page core skips the binding on purpose ("let the
1442	* link behave like a link"), flagged by
1443	* `plugin-install-tab-upload` on the wrap. There the href is
1444	* the real navigation, so we route it as usual.
1445	*
1446	* `theme-install.php`'s Upload Theme is a `<button>`, so it
1447	* never reaches this handler.
1448	*/
1449	if ( link.classList.contains( 'upload-view-toggle' ) ) {
1450	var uploadWrap = link.closest( '.wrap' );
1451	if (
1452	! uploadWrap \|\|
1453	! uploadWrap.classList.contains( 'plugin-install-tab-upload' )
1454	) {
1455	return;
1456	}
1457	}
1458	/*
1459	* WordPress core's wp-admin/js/updates.js owns the click on these
1460	* AJAX-driven plugin/theme management buttons — it binds in bubble
1461	* phase and calls preventDefault to take over with an in-place
1462	* AJAX install / update / delete (with its own progress spinner
1463	* and inline success/failure UX). Our capture-phase handler would
1464	* preempt it: preventDefault here fires BEFORE updates.js's own,
1465	* the AJAX call never starts, and the postMessage below diverts
1466	* the user to the link's no-JS fallback URL (update.php?action=
1467	* install-plugin&...) opened as a freshly spawned desktop window.
1468	* That fallback technically completes the install server-side,
1469	* but it's a long blocking page-load with no in-place feedback —
1470	* which is what users perceive as "Install Now keeps loading and
1471	* opens a new tab". Skip these classes so updates.js's bubble
1472	* handler runs as core intended.
1473	*
1474	* The plugins-list-table row action "Delete" is the same story
1475	* with a different marker: a bare `a.delete` inside a
1476	* `tr[data-plugin]` (updates.js binds `[data-plugin] a.delete`;
1477	* the network themes list is `.themes-php.network-admin
1478	* a.delete`) — it never carries the `delete-plugin` /
1479	* `delete-theme` classes of the card-style buttons above.
1480	* Hijacking it navigated the iframe to the link's no-JS
1481	* bulk-delete fallback WHILE updates.js's AJAX delete was
1482	* already running: `wp.updates.beforeunload` raised a native
1483	* "Leave site?" prompt, and leaving landed on a delete
1484	* confirmation screen for a plugin whose files the AJAX call
1485	* had just removed — an empty "You are about to remove:" list.
1486	*/
1487	if (
1488	link.classList.contains( 'install-now' ) \|\|
1489	link.classList.contains( 'update-link' ) \|\|
1490	link.classList.contains( 'update-now' ) \|\|
1491	link.classList.contains( 'delete-plugin' ) \|\|
1492	link.classList.contains( 'delete-theme' ) \|\|
1493	link.classList.contains( 'install-theme' ) \|\|
1494	( link.classList.contains( 'delete' ) &&
1495	( link.closest( '[data-plugin]' ) \|\|
1496	( document.body.classList.contains( 'themes-php' ) &&
1497	document.body.classList.contains( 'network-admin' ) ) ) )
1498	) {
1499	return;
1500	}
1501	var href = link.getAttribute( 'href' );
1502	var kind = classifyLink( href, window.location.href );
1503	if ( kind === 'admin' ) {
1504	var rewritten = rewriteAdminUrl( href, window.location.href );
1505	if ( rewritten ) {
1506	link.setAttribute( 'href', rewritten );
1507	}
1508	/*
1509	* Hand admin-internal navigation to the parent shell.
1510	*
1511	* The parent decides what to do with each click:
1512	*
1513	* - Native-window remap hits (e.g. `edit.php` while the
1514	* user has the native Posts opt-in on) → parent opens
1515	* the native window and closes THIS iframe.
1516	* - Same-page nav (pagination, filtering on the same
1517	* `edit.php?post_type=page` screen, etc.) → parent
1518	* drives the iframe's `location.assign()` so the
1519	* in-place navigation matches the user's intent.
1520	* - Cross-page nav (e.g. clicking "Posts" from inside
1521	* the Pages window) → parent opens a new window for
1522	* the destination and leaves THIS iframe untouched,
1523	* so the user keeps both contexts.
1524	*
1525	* We `preventDefault()` so the iframe never starts a
1526	* navigation the parent might want to suppress; otherwise
1527	* cross-page clicks would trash the source window before
1528	* the parent had a chance to react. Modifier-key clicks
1529	* (cmd/ctrl/shift/alt, middle-click) are already filtered
1530	* upstream so the browser's native "open in new tab" path
1531	* still works.
1532	*/
1533	e.preventDefault();
1534	try {
1535	var absolute = new URL( rewritten \|\| href, window.location.href ).toString();
1536	/*
1537	* Ship the link's visible text along with the URL so
1538	* the parent can title a freshly-opened window with
1539	* something the user recognises ("Scheduler") instead
1540	* of the URL slug ("tools-php-page-scheduler") when
1541	* the destination has no dock tile to copy a title
1542	* from. The iframe itself never auto-emits a
1543	* title-change, so without this hint the slug-as-
1544	* title fallback would persist for the lifetime of
1545	* the new window.
1546	*/
1547	var adminLabel = visibleLinkText( link ) \|\|
1548	link.getAttribute( 'title' ) \|\|
1549	link.getAttribute( 'aria-label' ) \|\|
1550	'';
1551	window.parent.postMessage(
1552	{
1553	type: 'os-iframe-admin-link',
1554	url: absolute,
1555	label: adminLabel.slice( 0, 80 ),
1556	/*
1557	* The link asked for a new browsing context, so
1558	* the parent must give the destination its own
1559	* window rather than driving this one. Without
1560	* the flag it would still be free to pick an
1561	* in-place branch — the destructive-action one
1562	* fires on slug mismatch, which is exactly the
1563	* shape a `_blank` reaches us with.
1564	*/
1565	newContext: newContext
1566	},
1567	window.location.origin
1568	);
1569	} catch ( bridgeErr ) {
1570	/* Same-origin postMessage to the same window can only fail in
1571	* a sandbox we don't support — swallow rather than block the
1572	* click. */
1573	}
1574	return;
1575	}
1576	if ( kind === 'external' ) {
1577	/*
1578	* External navigation inside an admin iframe would leave
1579	* the user stranded in a chrome-free version of whatever
1580	* site the link points at. Escalate to the parent shell
1581	* so it opens the URL as a closeable sub-tab (with a
1582	* detach button) alongside the admin tab — the user
1583	* stays inside the desktop shell.
1584	*
1585	* Resolving the href against the document base gives the
1586	* parent an absolute URL it doesn't have to re-resolve.
1587	*/
1588	e.preventDefault();
1589	var absolute;
1590	try {
1591	absolute = new URL( href, window.location.href ).toString();
1592	} catch ( err ) {
1593	return;
1594	}
1595	var label = visibleLinkText( link ) \|\|
1596	link.getAttribute( 'title' ) \|\|
1597	absolute;
1598	window.parent.postMessage(
1599	{
1600	type: 'os-external-link',
1601	url: absolute,
1602	label: label.slice( 0, 80 )
1603	},
1604	window.location.origin
1605	);
1606	}
1607	}, true );
1608
1609	document.addEventListener( 'submit', function ( e ) {
1610	var form = e.target;
1611	if ( ! form \|\| form.tagName !== 'FORM' ) {
1612	return;
1613	}
1614	var action = form.getAttribute( 'action' );
1615	var rewritten = rewriteAdminUrl( action \|\| window.location.href, window.location.href );
1616	if ( rewritten ) {
1617	form.setAttribute( 'action', rewritten );
1618	}
1619	}, true );
1620
1621	/*
1622	* Focus-request bridge.
1623	*
1624	* Clicks inside an iframe don't cross the browsing-context
1625	* boundary — the parent shell's pointerdown / focusin listeners
1626	* never see them, so without this hook the only way to focus an
1627	* iframe window would be clicking its title bar chrome. Post a
1628	* `os-focus-request` message on every pointerdown; the
1629	* parent Window class treats it as an onFocusRequest. Capture
1630	* phase so the signal fires before any stopPropagation inside
1631	* a page's own handlers.
1632	*/
1633	function postFocusRequest() {
1634	try {
1635	window.parent.postMessage(
1636	{ type: 'os-focus-request' },
1637	window.location.origin
1638	);
1639	} catch ( err ) {
1640	/* cross-origin parent (shouldn't happen for chromeless
1641	* pages, but don't let a throw break the bridge) */
1642	}
1643	}
1644
1645	document.addEventListener( 'pointerdown', postFocusRequest, true );
1646
1647	/*
1648	* Nested-frame focus escalation.
1649	*
1650	* The document-level listener above never hears clicks inside
1651	* NESTED iframes: Gutenberg renders the post canvas in one
1652	* (`editor-canvas`, srcdoc → same-origin), and TinyMCE's visual
1653	* mode uses `#content_ifr`. Without this hook, clicking into the
1654	* canvas of an unfocused editor window is swallowed — only the
1655	* toolbar/sidebar (outer document) would focus the window.
1656	* Attach the same escalation inside every same-origin nested
1657	* frame: on load (each navigation creates a fresh document) and
1658	* as frames mount (Gutenberg creates the canvas asynchronously
1659	* and re-creates it, e.g. on device-preview switches).
1660	*
1661	* The observer walks only each record's `addedNodes` — the same
1662	* shape as the component-sniffer observer at the top of this
1663	* file, and for the same reason. Re-querying the whole document
1664	* per mutation batch would put an O(DOM) tree walk on Gutenberg's
1665	* typing path, which is precisely when the editor mutates hardest
1666	* (and precisely when the editor-preview pairing is live). A
1667	* frame that was never inserted cannot need hooking, so the
1668	* narrow sweep loses nothing. The WeakSets keep it idempotent
1669	* when a subtree is moved rather than created.
1670	*/
1671	var hookedFrameDocs = new WeakSet();
1672	var hookedFrameEls = new WeakSet();
1673
1674	function hookNestedFrameDoc( frame ) {
1675	var doc;
1676	try {
1677	doc = frame.contentDocument;
1678	} catch ( err ) {
1679	return; /* cross-origin frame — unreachable, skip */
1680	}
1681	if ( ! doc \|\| hookedFrameDocs.has( doc ) ) {
1682	return;
1683	}
1684	hookedFrameDocs.add( doc );
1685	doc.addEventListener( 'pointerdown', postFocusRequest, true );
1686	}
1687
1688	function hookNestedFrame( frame ) {
1689	if ( ! hookedFrameEls.has( frame ) ) {
1690	hookedFrameEls.add( frame );
1691	frame.addEventListener( 'load', function ( ev ) {
1692	hookNestedFrameDoc( ev.target );
1693	} );
1694	}
1695	hookNestedFrameDoc( frame );
1696	}
1697
1698	/*
1699	* Hook every iframe at or below `root`. `root` is the document on
1700	* the initial sweep and a freshly-added node thereafter, so the
1701	* walk stays proportional to what actually changed.
1702	*/
1703	function hookNestedFrames( root ) {
1704	if ( ! root \|\| ( 1 !== root.nodeType && 9 !== root.nodeType ) ) {
1705	return; /* text / comment node — nothing to walk */
1706	}
1707	if ( 'IFRAME' === root.nodeName ) {
1708	hookNestedFrame( root );
1709	}
1710	var frames = root.querySelectorAll( 'iframe' );
1711	for ( var i = 0; i < frames.length; i++ ) {
1712	hookNestedFrame( frames[ i ] );
1713	}
1714	}
1715
1716	hookNestedFrames( document );
1717	if ( window.MutationObserver ) {
1718	new MutationObserver( function ( records ) {
1719	for ( var r = 0; r < records.length; r++ ) {
1720	var added = records[ r ].addedNodes;
1721	for ( var n = 0; n < added.length; n++ ) {
1722	hookNestedFrames( added[ n ] );
1723	}
1724	}
1725	} ).observe(
1726	document.documentElement,
1727	{ childList: true, subtree: true }
1728	);
1729	}
1730
1731	/*
1732	* OS-file drop forwarder. When the user drags a file from the
1733	* host OS into a chromeless admin iframe, intercept the drop
1734	* before the browser's default "navigate the iframe to the
1735	* file" handler fires, and `postMessage` the raw `File[]` up
1736	* to the parent shell so the OS-file drop manager
1737	* (`src/os-file-drop/manager.ts`) can show the upload dialog.
1738	*
1739	* Same-origin postMessage preserves `File` identity — the
1740	* parent receives real `File` objects, no base64 round-trip.
1741	*
1742	* We only intercept drops whose `DataTransfer.types` includes
1743	* `'Files'`. In-page DnD (Gutenberg block reorders, media
1744	* library drags) carries non-`Files` types and passes through
1745	* untouched.
1746	*/
1747	function bridgeHasFiles( ev ) {
1748	var t = ev && ev.dataTransfer && ev.dataTransfer.types;
1749	if ( ! t ) {
1750	return false;
1751	}
1752	if ( typeof t.includes === 'function' ) {
1753	return t.includes( 'Files' );
1754	}
1755	if ( typeof t.contains === 'function' ) {
1756	return t.contains( 'Files' );
1757	}
1758	for ( var i = 0; i < t.length; i++ ) {
1759	if ( t[ i ] === 'Files' ) {
1760	return true;
1761	}
1762	}
1763	return false;
1764	}
1765	/*
1766	* Selectors of in-iframe drop receivers we leave alone —
1767	* Gutenberg's drop zone, the legacy media uploader, any
1768	* element a plugin marks with `data-drop-zone`. The whole
1769	* point: file drops onto Gutenberg blocks keep firing
1770	* Gutenberg's handler; only drops on the empty page
1771	* background escalate to the shell.
1772	*/
1773	var bridgeDropPassthroughSelectors = [
1774	'.components-drop-zone',
1775	'[data-drop-zone]',
1776	'.uploader-window',
1777	'.media-frame-content'
1778	];
1779	function bridgeDropTargetWantsFile( target ) {
1780	if ( ! target \|\| ! target.closest ) {
1781	return false;
1782	}
1783	for ( var s = 0; s < bridgeDropPassthroughSelectors.length; s++ ) {
1784	if ( target.closest( bridgeDropPassthroughSelectors[ s ] ) ) {
1785	return true;
1786	}
1787	}
1788	return false;
1789	}
1790	/*
1791	* Bubble phase (not capture): the inner-most handler — Gutenberg's
1792	* drop zone, the legacy media uploader, or a third-party plugin
1793	* like "Administrador de archivos WP" — runs FIRST and gets the
1794	* chance to call `preventDefault()` to claim the drop. Our
1795	* forwarder then runs LAST at the document level and yields to
1796	* anyone who already took ownership.
1797	*
1798	* Two bail conditions, in order:
1799	* 1. `bridgeDropTargetWantsFile()` — the curated allowlist
1800	* (Gutenberg, wp.media, anything tagged `[data-drop-zone]`).
1801	* Kept as the primary check so the well-known core surfaces
1802	* behave identically to before, even if some edge case skips
1803	* the `preventDefault()` step.
1804	* 2. `ev.defaultPrevented` — the universal HTML5 contract: any
1805	* drop zone willing to receive a file calls `preventDefault()`
1806	* on `dragover` (mandatory per spec) and `drop` (to suppress
1807	* the browser's default navigate-to-file). When that's true,
1808	* some inner handler has taken the drop — yield so plugins
1809	* outside the allowlist (WP File Manager, Yoast, etc.) keep
1810	* their native UX.
1811	*/
1812	document.addEventListener( 'dragover', function ( ev ) {
1813	if ( ! bridgeHasFiles( ev ) ) {
1814	return;
1815	}
1816	if ( bridgeDropTargetWantsFile( ev.target ) ) {
1817	return;
1818	}
1819	if ( ev.defaultPrevented ) {
1820	return;
1821	}
1822	ev.preventDefault();
1823	if ( ev.dataTransfer ) {
1824	ev.dataTransfer.dropEffect = 'copy';
1825	}
1826	}, false );
1827	document.addEventListener( 'drop', function ( ev ) {
1828	if ( ! bridgeHasFiles( ev ) ) {
1829	return;
1830	}
1831	if ( bridgeDropTargetWantsFile( ev.target ) ) {
1832	return;
1833	}
1834	if ( ev.defaultPrevented ) {
1835	return;
1836	}
1837	ev.preventDefault();
1838	ev.stopPropagation();
1839	var files = [];
1840	if ( ev.dataTransfer && ev.dataTransfer.files ) {
1841	for ( var i = 0; i < ev.dataTransfer.files.length; i++ ) {
1842	files.push( ev.dataTransfer.files[ i ] );
1843	}
1844	}
1845	if ( files.length === 0 ) {
1846	return;
1847	}
1848	try {
1849	window.parent.postMessage(
1850	{
1851	type: 'os-file-drop',
1852	files: files,
1853	x: ev.clientX,
1854	y: ev.clientY,
1855	},
1856	window.location.origin
1857	);
1858	} catch ( err ) { /* cross-origin parent; swallow */ }
1859	}, false );
1860
1861	/*
1862	* Drag-hover forwarder. Native drag events don't cross iframe
1863	* boundaries, so when the user holds ANY drag (an OS file, an
1864	* image lifted off another admin page, a text selection) over
1865	* this window, the parent shell has no idea the window is being
1866	* hovered. Forward a throttled, payload-free heartbeat so the
1867	* shell's focus-on-drag-hover module
1868	* (`src/drag/focus-window-on-drag-hover.ts`) can raise this
1869	* window after its dwell. Purely observational — no
1870	* `preventDefault()`, no interference with in-page drop zones.
1871	* The parent identifies the hovered window from the message
1872	* source, so no coordinates travel.
1873	*
1874	* Sentinel-guarded: the standalone bridge bundle
1875	* (`iframe-bridge-standalone.ts`) installs the same forwarder,
1876	* and unlike the drop forwarder above there is no
1877	* `defaultPrevented` handshake to dedupe a double install.
1878	*/
1879	if ( ! window.__openStationDragHoverForwarderInstalled ) {
1880	window.__openStationDragHoverForwarderInstalled = true;
1881	var dragHoverLastSent = 0;
1882	document.addEventListener( 'dragover', function ( ev ) {
1883	var now = Date.now();
1884	if ( now - dragHoverLastSent < 150 ) {
1885	return;
1886	}
1887	dragHoverLastSent = now;
1888	try {
1889	window.parent.postMessage(
1890	{
1891	type: 'os-drag-hover',
1892	payloadType: bridgeHasFiles( ev ) ? 'os-file' : 'external',
1893	},
1894	window.location.origin
1895	);
1896	} catch ( err ) { /* cross-origin parent; swallow */ }
1897	}, true );
1898	}
1899
1900	/*
1901	* Pointer forwarder — OPT-IN, off by default.
1902	*
1903	* Pointer events don't cross iframe boundaries, so the parent
1904	* shell goes blind to the cursor the moment it enters a window.
1905	* Anything in the shell that needs to know where the mouse
1906	* actually is while it's over window content — today, the
1907	* Mio's gaze (`src/mio/pointer.ts`) — gets a throttled
1908	* stream of this frame's client coordinates and rebases them
1909	* through the iframe element's own rect.
1910	*
1911	* Strictly opt-in: the parent posts
1912	* `os-pointer-track { enabled: true }` when a consumer
1913	* starts, and `{ enabled: false }` when the last one stops. A
1914	* shell with no consumer never turns this on and pays nothing.
1915	* `os-bridge-ready` (emitted at the end of this script,
1916	* i.e. on every navigation) is the parent's cue to re-arm a
1917	* freshly-loaded frame.
1918	*
1919	* Coordinates only — no target element, no event object, nothing
1920	* about the page content. Purely observational: passive listener,
1921	* no `preventDefault()`.
1922	*
1923	* Sentinel-guarded: the standalone bridge bundle
1924	* (`iframe-bridge-standalone.ts`) installs the same forwarder.
1925	*/
1926	if ( ! window.__openStationPointerForwarderInstalled ) {
1927	window.__openStationPointerForwarderInstalled = true;
1928	var pointerTrackOn = false;
1929	var pointerLastSent = 0;
1930	window.addEventListener( 'message', function ( e ) {
1931	if ( e.origin !== window.location.origin ) return;
1932	if ( ! e.data \|\| e.data.type !== 'os-pointer-track' ) return;
1933	pointerTrackOn = !! e.data.enabled;
1934	} );
1935	document.addEventListener( 'pointermove', function ( ev ) {
1936	if ( ! pointerTrackOn ) return;
1937	var now = Date.now();
1938	// ~25 Hz. The consumer interpolates; a faster stream buys
1939	// nothing visible and costs a postMessage per mouse move.
1940	if ( now - pointerLastSent < 40 ) return;
1941	pointerLastSent = now;
1942	try {
1943	window.parent.postMessage(
1944	{
1945	type: 'os-pointer-move',
1946	x: ev.clientX,
1947	y: ev.clientY
1948	},
1949	window.location.origin
1950	);
1951	} catch ( err ) { /* cross-origin parent; swallow */ }
1952	}, { capture: true, passive: true } );
1953	}
1954
1955	/*
1956	* Cmd+K / Ctrl+K forwarder — single-press, unconditional.
1957	*
1958	* Native keydown events don't cross iframe boundaries. Inside a
1959	* chromeless admin page we want exactly ONE command palette: the
1960	* desktop shell's. WordPress's own `core/commands` palette is
1961	* harvested by `__wpdHarvestCommands` below and re-surfaced in the
1962	* shell palette, so there's no reason to ever let the in-page palette
1963	* take the keystroke.
1964	*
1965	* Capture phase + `stopImmediatePropagation` so we win the race
1966	* against Gutenberg / TinyMCE / plugin handlers bound to the same
1967	* shortcut. Shift/Alt modifiers pass through so user shortcuts using
1968	* those combos keep working.
1969	*/
1970	document.addEventListener( 'keydown', function ( e ) {
1971	if ( ! ( e.metaKey \|\| e.ctrlKey ) ) return;
1972	if ( e.key !== 'k' && e.key !== 'K' ) return;
1973	if ( e.shiftKey \|\| e.altKey ) return;
1974
1975	e.preventDefault();
1976	e.stopImmediatePropagation();
1977
1978	try {
1979	window.parent.postMessage(
1980	{ type: 'os-palette-cycle' },
1981	window.location.origin
1982	);
1983	} catch ( err ) { /* cross-origin parent; swallow */ }
1984	}, true );
1985
1986	/*
1987	* Command harvester — bridges `wp.data.select('core/commands')` to
1988	* the parent shell.
1989	*
1990	* On `os-commands-subscribe` from the parent, subscribe to
1991	* the `core/commands` store and post `os-commands-list` on
1992	* every change (de-duplicated). On `os-commands-invoke`, run
1993	* the original callback inside this iframe — the parent fires this
1994	* when the user selects a proxied command from the shell palette.
1995	*
1996	* Commands are classified by dry-invoking their callback inside a
1997	* `window.location`-intercept sandbox: pure-navigation callbacks
1998	* are flagged `navigate` (with the captured URL) so the parent can
1999	* open a new desktop window instead of navigating this iframe out
2000	* of chromeless mode. Everything else is `action` and proxies back
2001	* into this iframe on user selection.
2002	*/
2003	var __wpdCommandsSubscribed = false;
2004	var __wpdCommandsLastPayload = '';
2005	var __wpdCommandsDebounceId = null;
2006	var __wpdCommandsOrigin = window.location.origin;
2007	// Cache per command name so the `window.location`-intercept
2008	// sandbox only runs once per command. Re-classifying on every
2009	// store tick would repeatedly fire side-effectful action
2010	// callbacks (preference toggles, modal opens) — unacceptable.
2011	// Keyed by name; value is the frozen classification minus the
2012	// live `label` / `icon` (which we always re-read in case the
2013	// command updated its own metadata).
2014	var __wpdCommandsKindCache = Object.create( null );
2015
2016	function __wpdRenderIconElement( icon ) {
2017	if ( ! icon ) return '';
2018	if ( typeof icon === 'string' ) return '';
2019	if ( ! window.wp \|\| ! window.wp.element \|\| typeof window.wp.element.renderToString !== 'function' ) {
2020	return '';
2021	}
2022	try {
2023	var rendered = window.wp.element.renderToString( icon );
2024	// `@wordpress/icons` entries render as a complete `<svg>`
2025	// tag. Anything else (wrapped components, empty fragments,
2026	// strings) falls back to dashicons in the palette — we only
2027	// accept markup we can inject straight into the icon slot.
2028	if ( typeof rendered === 'string' && rendered.toLowerCase().indexOf( '<svg' ) === 0 ) {
2029	return rendered;
2030	}
2031	} catch ( _err ) { /* swallow */ }
2032	return '';
2033	}
2034
2035	function __wpdClassifyCommand( cmd ) {
2036	// Defensive defaults — a broken registry should not tank the bridge.
2037	var out = {
2038	name: String( cmd && cmd.name ? cmd.name : '' ),
2039	label: String( cmd && cmd.label ? cmd.label : '' ),
2040	icon: cmd && cmd.icon && typeof cmd.icon === 'string' ? cmd.icon : undefined,
2041	iconSvg: undefined,
2042	context: cmd && cmd.context ? String( cmd.context ) : undefined,
2043	kind: 'action',
2044	url: undefined
2045	};
2046	if ( ! cmd \|\| typeof cmd.callback !== 'function' ) {
2047	return out;
2048	}
2049
2050	// Short-circuit on cached classifications — `renderToString` on
2051	// the React icon is expensive, and the static URL regex scan
2052	// on `callback.toString()` is pure CPU we've already paid once.
2053	var cached = __wpdCommandsKindCache[ out.name ];
2054	if ( cached ) {
2055	out.kind = cached.kind;
2056	out.url = cached.url;
2057	out.iconSvg = cached.iconSvg;
2058	return out;
2059	}
2060
2061	// Render the React icon once per command name — Gutenberg
2062	// commands ship `icon` as a `@wordpress/icons` React element
2063	// the postMessage bridge can't serialize, so we flatten it to
2064	// a static SVG string here.
2065	if ( cmd.icon && typeof cmd.icon !== 'string' ) {
2066	out.iconSvg = __wpdRenderIconElement( cmd.icon );
2067	}
2068
2069	// STATIC classification — read the callback's source text and
2070	// look for a string-literal navigation target. We deliberately
2071	// do NOT execute the callback. An earlier iteration tried a
2072	// dry-run with a `window.location` intercept sandbox, but
2073	// `Location.prototype.href` is non-configurable: the shim
2074	// silently failed, every nav callback actually navigated the
2075	// iframe, the new page re-harvested, and the cascade opened
2076	// windows forever.
2077	//
2078	// Cases caught (WP's @wordpress/core-commands callbacks are
2079	// all of this shape):
2080	// document.location.href = 'url'
2081	// window.location.href = "url"
2082	// location.href = `url`
2083	// location.assign( 'url' )
2084	// location.replace( 'url' )
2085	//
2086	// Computed URLs (template-literal interpolation, addQueryArgs
2087	// calls, variables) fall back to `action` — the user picking
2088	// them will still run the real callback inside the iframe,
2089	// which is the safe default.
2090	var src = '';
2091	try { src = Function.prototype.toString.call( cmd.callback ); } catch ( _err ) { src = ''; }
2092	var navRe = /(?:document\.location\.href\|window\.location\.href\|location\.href)\s=\s['"]([^'"$]+?)['"]/;
2093	var asgRe = /location\.(?:assign\|replace)\s$\s['"]([^'"$]+?)['"]\s*$/;
2094	var mm = src.match( navRe ) \|\| src.match( asgRe );
2095	if ( mm && mm[ 1 ] ) {
2096	try {
2097	out.url = new URL( mm[ 1 ], window.location.href ).toString();
2098	out.kind = 'navigate';
2099	} catch ( _err ) {
2100	out.kind = 'action';
2101	}
2102	}
2103	__wpdCommandsKindCache[ out.name ] = { kind: out.kind, url: out.url, iconSvg: out.iconSvg };
2104	return out;
2105	}
2106
2107	// Harvested commands accumulate here. The React harvester writes
2108	// the full list each render; `__wpdPostCommandsList` reads + posts.
2109	var __wpdLastRawCommands = [];
2110	// Name → live `callback` reference. Loader-returned commands are
2111	// NOT in `wp.data.select('core/commands').getCommands()` — the
2112	// store only exposes statically-registered entries. Without a
2113	// private cache keyed off the React harvester's most recent render,
2114	// invoking a loader command from the parent palette ("Duplicate
2115	// block", "Transform to...", pattern commands) would silently fall
2116	// through to the `getCommands()` lookup and no-op.
2117	var __wpdCommandCallbacks = Object.create( null );
2118
2119	function __wpdFinalizeCommands( raw ) {
2120	var seen = Object.create( null );
2121	var out = [];
2122	var skipped = { missing: 0, disabled: 0, dup: 0 };
2123	for ( var i = 0; i < raw.length; i++ ) {
2124	var cmd = raw[ i ];
2125	if ( ! cmd \|\| ! cmd.name \|\| ! cmd.label ) { skipped.missing++; continue; }
2126	if ( cmd.disabled ) { skipped.disabled++; continue; }
2127	if ( seen[ cmd.name ] ) { skipped.dup++; continue; }
2128	seen[ cmd.name ] = true;
2129	out.push( __wpdClassifyCommand( cmd ) );
2130	}
2131	return out;
2132	}
2133
2134	function __wpdHarvestCommands() {
2135	return __wpdFinalizeCommands( __wpdLastRawCommands );
2136	}
2137
2138	// React-mounted harvester. Block-level / editor-contextual commands
2139	// (tier 3 loaders like `core/block-editor/selected-block-commands`,
2140	// `core/edit-post/pattern-commands`) are React hooks — they call
2141	// `useSelect` internally, which only works inside a function-
2142	// component render. So we mount an invisible React tree whose
2143	// children invoke each loader's hook at render time. On every
2144	// re-render (block selection changes, entity edits, welcome guide
2145	// toggled) the effect re-posts the fresh command list to the
2146	// parent. One component per loader keeps the rules-of-hooks
2147	// contract — the hook count inside each `LoaderSlot` is fixed at
2148	// one call (plus the constant `useEffect`), so React's reconciler
2149	// is happy.
2150	var __wpdReactMounted = false;
2151	// Stashed so `__wpdUnsubscribeCommands` can tear the harvester
2152	// down when focus leaves the window — otherwise the component
2153	// keeps re-rendering on every store tick, calling `mergeAndPost`,
2154	// and posting command lists the parent drops on the floor.
2155	var __wpdReactRoot = null;
2156	var __wpdReactHost = null;
2157
2158	function __wpdMountReactHarvester() {
2159	if ( __wpdReactMounted ) return;
2160	if ( ! window.wp \|\| ! window.wp.element \|\| ! window.wp.data ) {
2161	return;
2162	}
2163	var el = window.wp.element;
2164	var createEl = el.createElement;
2165	var useEffect = el.useEffect;
2166	var useRef = el.useRef;
2167	var useMemo = el.useMemo;
2168	var useSelect = ( window.wp.data && window.wp.data.useSelect ) \|\| null;
2169	if ( ! createEl \|\| ! useSelect \|\| ! el.createRoot \|\| ! useRef ) {
2170	return;
2171	}
2172	__wpdReactMounted = true;
2173
2174	// Hidden mount point. Positioned off-screen + `aria-hidden` so
2175	// nothing the harvester renders (it renders null anyway) can
2176	// leak into the accessibility tree or the visible document.
2177	var host = document.createElement( 'div' );
2178	host.setAttribute( 'aria-hidden', 'true' );
2179	host.style.cssText = 'position:absolute;width:0;height:0;overflow:hidden;pointer-events:none;left:-9999px;top:-9999px;';
2180	( document.body \|\| document.documentElement ).appendChild( host );
2181	__wpdReactHost = host;
2182
2183	// Shared mutable bucket — ref-based aggregation to avoid the
2184	// classic setState-inside-useEffect loop. A `setState` here
2185	// would fire a parent re-render, which would fire the loader
2186	// hook again, which returns a fresh commands array with a new
2187	// reference even when the contents are identical, which would
2188	// re-fire the effect and setState again → Maximum update
2189	// depth exceeded. Refs don't trigger renders, so the loop is
2190	// broken even when hooks churn references.
2191	var resultsBucket = { perLoader: {}, statics: [], loadersList: [] };
2192
2193	function commandsFingerprint( cmds ) {
2194	if ( ! Array.isArray( cmds ) \|\| cmds.length === 0 ) return '';
2195	// Cheap identity — name count is enough to decide whether
2196	// to re-post. Accepts some false negatives (two different
2197	// commands sharing a name) we'll never hit in practice.
2198	var keys = new Array( cmds.length );
2199	for ( var i = 0; i < cmds.length; i++ ) {
2200	var c = cmds[ i ];
2201	keys[ i ] = c && c.name ? c.name : '';
2202	}
2203	return keys.join( '\|' );
2204	}
2205
2206	function mergeAndPost() {
2207	var merged = [];
2208	var loadersList = resultsBucket.loadersList;
2209	if ( Array.isArray( loadersList ) ) {
2210	for ( var i = 0; i < loadersList.length; i++ ) {
2211	var bucket = resultsBucket.perLoader[ loadersList[ i ] ];
2212	if ( Array.isArray( bucket ) ) merged = merged.concat( bucket );
2213	}
2214	}
2215	if ( Array.isArray( resultsBucket.statics ) ) {
2216	merged = merged.concat( resultsBucket.statics );
2217	}
2218	// Refresh the callback cache off the SAME snapshot we're
2219	// about to post. Loader-returned commands close over React
2220	// state (selected block, edited entity, etc.) that's only
2221	// valid for this render pass, so rebuilding from scratch
2222	// every merge keeps invoke-from-parent honest instead of
2223	// calling a stale closure.
2224	__wpdCommandCallbacks = Object.create( null );
2225	for ( var j = 0; j < merged.length; j++ ) {
2226	var cc = merged[ j ];
2227	if ( cc && cc.name && typeof cc.callback === 'function' ) {
2228	__wpdCommandCallbacks[ cc.name ] = cc.callback;
2229	}
2230	}
2231	__wpdLastRawCommands = merged;
2232	__wpdSchedulePost();
2233	}
2234
2235	// One slot per loader. Calls the loader's hook at render time;
2236	// an effect keyed on the commands' name-fingerprint writes the
2237	// fresh list into the shared bucket and posts. Ref-based, no
2238	// setState → no re-render cascade.
2239	function LoaderSlot( props ) {
2240	var loader = props.loader;
2241	var result = null;
2242	try {
2243	result = loader.hook( { search: '' } );
2244	} catch ( _err ) {
2245	/* swallow — a buggy loader hook shouldn't take the harvester down */
2246	}
2247	var cmds = ( result && Array.isArray( result.commands ) ) ? result.commands : [];
2248	var key = useMemo( function () { return commandsFingerprint( cmds ); }, [ cmds ] );
2249
2250	useEffect( function () {
2251	resultsBucket.perLoader[ loader.name ] = cmds;
2252	mergeAndPost();
2253	}, [ key ] );
2254
2255	useEffect( function () {
2256	return function () {
2257	delete resultsBucket.perLoader[ loader.name ];
2258	mergeAndPost();
2259	};
2260	}, [] );
2261
2262	return null;
2263	}
2264
2265	function Harvester() {
2266	var loaders = useSelect( function ( s ) {
2267	var ss = s( 'core/commands' );
2268	return ( ss && typeof ss.getCommandLoaders === 'function' )
2269	? ss.getCommandLoaders( true )
2270	: [];
2271	}, [] );
2272	var staticCmds = useSelect( function ( s ) {
2273	var ss = s( 'core/commands' );
2274	return ( ss && typeof ss.getCommands === 'function' )
2275	? ss.getCommands( true )
2276	: [];
2277	}, [] );
2278
2279	// Track the loader-name ordering so `mergeAndPost` can emit
2280	// tier-3 in a deterministic order (React reconciliation
2281	// order = registration order = the order the user sees).
2282	var loadersNames = useMemo( function () {
2283	if ( ! Array.isArray( loaders ) ) return [];
2284	return loaders.map( function ( l ) { return l ? l.name : ''; } );
2285	}, [ loaders ] );
2286	var loadersKey = loadersNames.join( '\|' );
2287	useEffect( function () {
2288	resultsBucket.loadersList = loadersNames;
2289	mergeAndPost();
2290	}, [ loadersKey ] );
2291
2292	var staticKey = useMemo( function () { return commandsFingerprint( staticCmds ); }, [ staticCmds ] );
2293	useEffect( function () {
2294	resultsBucket.statics = Array.isArray( staticCmds ) ? staticCmds : [];
2295	mergeAndPost();
2296	}, [ staticKey ] );
2297
2298	if ( ! Array.isArray( loaders ) \|\| loaders.length === 0 ) {
2299	return null;
2300	}
2301	var children = [];
2302	for ( var i = 0; i < loaders.length; i++ ) {
2303	var loader = loaders[ i ];
2304	if ( ! loader \|\| typeof loader.hook !== 'function' ) continue;
2305	children.push( createEl( LoaderSlot, {
2306	key: loader.name,
2307	loader: loader
2308	} ) );
2309	}
2310	return createEl( el.Fragment \|\| 'div', null, children );
2311	}
2312
2313	try {
2314	var root = el.createRoot( host );
2315	__wpdReactRoot = root;
2316	root.render( createEl( Harvester ) );
2317	} catch ( err ) {
2318	__wpdReactMounted = false;
2319	__wpdReactRoot = null;
2320	if ( __wpdReactHost && __wpdReactHost.parentNode ) {
2321	__wpdReactHost.parentNode.removeChild( __wpdReactHost );
2322	}
2323	__wpdReactHost = null;
2324	}
2325	}
2326
2327	function __wpdUnmountReactHarvester() {
2328	if ( __wpdReactRoot ) {
2329	try { __wpdReactRoot.unmount(); } catch ( _err ) { /* swallow */ }
2330	}
2331	__wpdReactRoot = null;
2332	if ( __wpdReactHost && __wpdReactHost.parentNode ) {
2333	__wpdReactHost.parentNode.removeChild( __wpdReactHost );
2334	}
2335	__wpdReactHost = null;
2336	__wpdReactMounted = false;
2337	__wpdLastRawCommands = [];
2338	__wpdCommandCallbacks = Object.create( null );
2339	}
2340
2341	function __wpdPostCommandsList() {
2342	var list = __wpdHarvestCommands();
2343	// Cheap de-dupe — the store fires on every unrelated preference
2344	// change too, and shipping an identical payload is pure noise.
2345	// Fingerprint on `name\|kind\|url` keeps us sensitive to the
2346	// visible surface (name changes, navigate-vs-action flips,
2347	// destination URL changes) while skipping `JSON.stringify` of
2348	// the entire payload — label/icon churn inside a single command
2349	// is rare and re-shipping on it is harmless noise vs. a hot
2350	// path allocation cost.
2351	var key = '';
2352	for ( var k = 0; k < list.length; k++ ) {
2353	var lc = list[ k ];
2354	key += ( lc && lc.name ? lc.name : '' ) + '\|'
2355	+ ( lc && lc.kind ? lc.kind : '' ) + '\|'
2356	+ ( lc && lc.url ? lc.url : '' ) + '\n';
2357	}
2358	if ( key === __wpdCommandsLastPayload ) {
2359	return;
2360	}
2361	__wpdCommandsLastPayload = key;
2362	try {
2363	window.parent.postMessage(
2364	{ type: 'os-commands-list', commands: list },
2365	__wpdCommandsOrigin
2366	);
2367	} catch ( _err ) {
2368	/* cross-origin parent (shouldn't happen for chromeless pages, but
2369	* don't let a throw break the bridge) */
2370	}
2371	}
2372
2373	function __wpdSchedulePost() {
2374	if ( __wpdCommandsDebounceId !== null ) return;
2375	__wpdCommandsDebounceId = window.setTimeout( function () {
2376	__wpdCommandsDebounceId = null;
2377	__wpdPostCommandsList();
2378	}, 60 );
2379	}
2380
2381	function __wpdSubscribeCommands() {
2382	__wpdCommandsSubscribed = true;
2383
2384	// If the React harvester is already running (focus left and
2385	// came back), the bucket still holds the latest merged list.
2386	// Reset the dedupe key so the next post actually ships, then
2387	// schedule it. The harvester itself won't re-fire its effects
2388	// just because the parent re-subscribed — React only reacts to
2389	// store changes, and the store hasn't changed. We have to
2390	// push from here.
2391	if ( __wpdReactMounted ) {
2392	__wpdCommandsLastPayload = '';
2393	__wpdSchedulePost();
2394	return;
2395	}
2396
2397	var attempts = 0;
2398	function tryBind() {
2399	if ( ! __wpdCommandsSubscribed ) return;
2400	if ( ! window.wp \|\| ! window.wp.data \|\| typeof window.wp.data.subscribe !== 'function' ) {
2401	if ( attempts++ < 40 ) {
2402	window.setTimeout( tryBind, 150 );
2403	}
2404	return;
2405	}
2406	// Mount the React harvester — tier 3 loaders are hooks and
2407	// need a legal render context to execute. On every re-render
2408	// the component's effect calls `__wpdSchedulePost` with the
2409	// fresh merged list, so we don't need a separate
2410	// `wp.data.subscribe` callback.
2411	__wpdMountReactHarvester();
2412	}
2413	tryBind();
2414	}
2415
2416	function __wpdUnsubscribeCommands() {
2417	__wpdCommandsSubscribed = false;
2418	__wpdCommandsLastPayload = '';
2419	if ( __wpdCommandsDebounceId !== null ) {
2420	try { window.clearTimeout( __wpdCommandsDebounceId ); } catch ( _err ) { /* swallow */ }
2421	__wpdCommandsDebounceId = null;
2422	}
2423	// Fully tear down the React harvester. Keeping it mounted in
2424	// the background wastes CPU: every store tick re-renders the
2425	// loader hooks, which rebuild the callback cache and post to
2426	// the parent (who drops the message because this window isn't
2427	// the subscribed one). On re-subscribe we remount from scratch.
2428	__wpdUnmountReactHarvester();
2429	}
2430
2431	function __wpdInvokeCommand( name ) {
2432	// Primary lookup — the React harvester's latest snapshot. This
2433	// covers loader-returned commands (Duplicate block, Transform
2434	// to, pattern commands) that never appear in the static
2435	// `getCommands()` list.
2436	var cb = __wpdCommandCallbacks[ name ];
2437	if ( typeof cb === 'function' ) {
2438	try {
2439	cb( { close: function () {} } );
2440	} catch ( _err ) {
2441	/* swallow — a plugin command callback that throws shouldn't break the bridge */
2442	}
2443	return;
2444	}
2445	// Fallback — statically registered commands that never passed
2446	// through the harvester (registered after the last render).
2447	if ( ! window.wp \|\| ! window.wp.data ) {
2448	return;
2449	}
2450	var sel = null;
2451	try { sel = window.wp.data.select( 'core/commands' ); } catch ( _err ) { return; }
2452	if ( ! sel \|\| typeof sel.getCommands !== 'function' ) return;
2453	var raw;
2454	try { raw = sel.getCommands(); } catch ( _err ) { return; }
2455	if ( ! raw ) return;
2456	for ( var i = 0; i < raw.length; i++ ) {
2457	if ( raw[ i ] && raw[ i ].name === name && typeof raw[ i ].callback === 'function' ) {
2458	try {
2459	raw[ i ].callback( { close: function () {} } );
2460	} catch ( _err ) {
2461	/* swallow — see note in primary path above */
2462	}
2463	return;
2464	}
2465	}
2466	}
2467
2468	// Attach the listener BEFORE the bridge-ready ping so a subscribe
2469	// posted synchronously in response is guaranteed to land.
2470	window.addEventListener( 'message', function ( e ) {
2471	if ( e.origin !== __wpdCommandsOrigin ) return;
2472	if ( ! e.data \|\| typeof e.data.type !== 'string' ) return;
2473	if ( e.data.type === 'os-commands-subscribe' ) {
2474	__wpdSubscribeCommands();
2475	} else if ( e.data.type === 'os-commands-unsubscribe' ) {
2476	__wpdUnsubscribeCommands();
2477	} else if ( e.data.type === 'os-commands-invoke' && typeof e.data.name === 'string' ) {
2478	__wpdInvokeCommand( e.data.name );
2479	}
2480	} );
2481
2482	// Handshake: tell the parent we're ready so it can (re)send any
2483	// subscribe that was dispatched before this listener attached.
2484	// Without this ping, a subscribe posted during iframe navigation
2485	// arrives at a context whose message listener isn't installed yet
2486	// and is silently dropped — the symptom is an empty palette even
2487	// though `wp.data.select('core/commands')` is perfectly happy.
2488	try {
2489	window.parent.postMessage(
2490	{ type: 'os-bridge-ready' },
2491	__wpdCommandsOrigin
2492	);
2493	} catch ( _err ) {
2494	/* parent gone or cross-origin — bridge handshake will retry on next load */
2495	}
2496
2497	/*
2498	* ` / Shift+` forwarder — window switcher.
2499	*
2500	* Bare backtick with no modifier. Must skip when focus is in a
2501	* text-entry element, otherwise typing ` into a block, a text
2502	* field, or TinyMCE would steal the keystroke. Non-text inputs
2503	* (checkbox, button, select) don't accept character input, so
2504	* cycling on those is fine.
2505	*
2506	* Same iframe-crossing rationale as the Cmd+K forwarder above:
2507	* native keydown doesn't reach the parent, so we postMessage.
2508	*/
2509	document.addEventListener( 'keydown', function ( e ) {
2510	if ( e.ctrlKey \|\| e.metaKey \|\| e.altKey ) return;
2511	if ( e.code !== 'Backquote' ) return;
2512
2513	// IFRAME case catches Gutenberg: the block canvas is a nested
2514	// iframe, and Gutenberg re-dispatches cloned keydowns up to
2515	// this document for its shortcut system. Without this branch
2516	// typing ` in a block would cycle windows. Any other nested
2517	// iframe owning keyboard handling gets the same treatment.
2518	var el = document.activeElement;
2519	if ( el ) {
2520	var tag = el.tagName;
2521	if ( tag === 'IFRAME' ) return;
2522	if ( tag === 'TEXTAREA' ) return;
2523	if ( tag === 'INPUT' ) {
2524	var type = ( el.type \|\| '' ).toLowerCase();
2525	var textTypes = [
2526	'text', 'search', 'url', 'email', 'password',
2527	'tel', 'number', 'date', 'datetime-local',
2528	'month', 'week', 'time'
2529	];
2530	if ( textTypes.indexOf( type ) !== -1 ) return;
2531	}
2532	if ( el.isContentEditable ) return;
2533	}
2534
2535	e.preventDefault();
2536	e.stopImmediatePropagation();
2537
2538	try {
2539	window.parent.postMessage(
2540	{
2541	type: 'os-window-switch',
2542	direction: e.shiftKey ? 'prev' : 'next'
2543	},
2544	window.location.origin
2545	);
2546	} catch ( err ) { /* cross-origin parent; swallow */ }
2547	}, true );
2548
2549	// Skip if the standalone iframe-bridge bundle already wired
2550	// screen-meta hoisting on this page. Two bridges racing to read
2551	// `aria-expanded` and reflect state would double-fire the
2552	// `os-screen-meta-state` message and flicker the
2553	// title-bar buttons.
2554	if ( window.__openStationScreenMetaInstalled ) {
2555	return;
2556	}
2557	window.__openStationScreenMetaInstalled = true;
2558
2559	// Real screen options render form controls (column toggles, a
2560	// per-page input, custom settings). An empty wrap should not
2561	// surface a dead gear button.
2562	function hasScreenOptionsContent() {
2563	var wrap = document.getElementById( 'screen-options-wrap' );
2564	// WP always renders a nonce hidden input and an "Apply" submit
2565	// inside the wrap, so match only interactive option controls
2566	// (toggles, per-page, radios, selects) — never that always-
2567	// present scaffolding — or an empty panel reads as non-empty.
2568	return !! wrap && !! wrap.querySelector( 'input:not([type="hidden"]):not([type="submit"]):not([type="button"]):not([type="reset"]), select, textarea' );
2569	}
2570	// A help tab registered with empty content + no callback still
2571	// produces #contextual-help-link but an empty panel. Require some
2572	// non-whitespace tab/sidebar text before announcing the button.
2573	function hasHelpContent() {
2574	var wrap = document.getElementById( 'contextual-help-wrap' );
2575	if ( ! wrap ) {
2576	return false;
2577	}
2578	var panelEls = wrap.querySelectorAll( '.help-tab-content, .contextual-help-sidebar' );
2579	for ( var i = 0; i < panelEls.length; i++ ) {
2580	if ( ( panelEls[ i ].textContent \|\| '' ).trim() !== '' ) {
2581	return true;
2582	}
2583	}
2584	return false;
2585	}
2586
2587	var links = document.getElementById( 'screen-meta-links' );
2588	var screenOptionsBtn = links ? document.getElementById( 'show-settings-link' ) : null;
2589	var helpBtn = links ? document.getElementById( 'contextual-help-link' ) : null;
2590	var panels = [];
2591	if ( screenOptionsBtn && hasScreenOptionsContent() ) {
2592	panels.push( 'screen-options' );
2593	}
2594	if ( helpBtn && hasHelpContent() ) {
2595	panels.push( 'help' );
2596	}
2597
2598	var origin = window.location.origin;
2599
2600	// ALWAYS announce — including an empty array — so the parent removes
2601	// stale gear/Help buttons when this page (e.g. after an in-place
2602	// same-slug navigation) has no screen meta. addScreenMetaButtons()
2603	// clears then repopulates, so an empty array removes everything.
2604	window.parent.postMessage( {
2605	type: 'os-screen-meta',
2606	panels: panels
2607	}, origin );
2608
2609	if ( panels.length === 0 ) {
2610	return;
2611	}
2612
2613	function getOpenPanel() {
2614	if ( screenOptionsBtn && screenOptionsBtn.getAttribute( 'aria-expanded' ) === 'true' ) {
2615	return 'screen-options';
2616	}
2617	if ( helpBtn && helpBtn.getAttribute( 'aria-expanded' ) === 'true' ) {
2618	return 'help';
2619	}
2620	return null;
2621	}
2622
2623	function reportState() {
2624	window.parent.postMessage( {
2625	type: 'os-screen-meta-state',
2626	open: getOpenPanel()
2627	}, origin );
2628	}
2629
2630	reportState();
2631
2632	var observer = new MutationObserver( reportState );
2633	if ( screenOptionsBtn ) {
2634	observer.observe( screenOptionsBtn, { attributes: true, attributeFilter: [ 'aria-expanded' ] } );
2635	}
2636	if ( helpBtn ) {
2637	observer.observe( helpBtn, { attributes: true, attributeFilter: [ 'aria-expanded' ] } );
2638	}
2639
2640	// WP's close() animates and shares #screen-meta between both panels,
2641	// so racing two animated clicks hides the panel that just opened.
2642	// Jump the other panel to its closed end state synchronously instead.
2643	function forceClose( button ) {
2644	if ( ! button \|\| button.getAttribute( 'aria-expanded' ) !== 'true' ) {
2645	return;
2646	}
2647	var panelId = button.getAttribute( 'aria-controls' );
2648	var panel = panelId ? document.getElementById( panelId ) : null;
2649	if ( ! panel ) {
2650	return;
2651	}
2652	if ( window.jQuery ) {
2653	window.jQuery( panel ).stop( true, false );
2654	}
2655	panel.style.display = 'none';
2656	panel.classList.add( 'hidden' );
2657	if ( panel.parentNode instanceof HTMLElement ) {
2658	panel.parentNode.style.display = 'none';
2659	}
2660	button.classList.remove( 'screen-meta-active' );
2661	button.setAttribute( 'aria-expanded', 'false' );
2662	var toggles = document.querySelectorAll( '.screen-meta-toggle' );
2663	for ( var i = 0; i < toggles.length; i++ ) {
2664	toggles[ i ].style.visibility = '';
2665	}
2666	}
2667
2668	/* -----------------------------------------------------------------
2669	* Broadcast receiver — iframe side.
2670	*
2671	* The parent shell publishes broadcasts via
2672	* `wp.os.broadcast(topic, payload)` (see `src/broadcast.ts`).
2673	* It posts `{ type: 'os-broadcast', topic, payload }` to
2674	* every open iframe. Here we re-dispatch that as a CustomEvent
2675	* on the iframe's own document so admin pages can subscribe with
2676	* plain `document.addEventListener( 'os-broadcast', cb )`
2677	* — no extra script handle required.
2678	*
2679	* Iframe-side admin code can also publish UPSTREAM by posting
2680	* the same shape to `window.parent`; the parent's
2681	* `installBroadcastReceiver()` re-broadcasts to every other
2682	* iframe + native window.
2683	* ----------------------------------------------------------------- */
2684	window.addEventListener( 'message', function ( e ) {
2685	if ( e.origin !== origin ) {
2686	return;
2687	}
2688	if ( ! e.data \|\| e.data.type !== 'os-broadcast' ) {
2689	return;
2690	}
2691	try {
2692	document.dispatchEvent( new CustomEvent( 'os-broadcast', {
2693	detail: { topic: e.data.topic, payload: e.data.payload }
2694	} ) );
2695	} catch ( _err ) { /* old browser without CustomEvent ctor — ignore */ }
2696	} );
2697
2698	/* -----------------------------------------------------------------
2699	* Soft-reload — iframe-side default handler.
2700	*
2701	* When a `os.<post_type>.changed` broadcast fires AND the
2702	* current iframe is on a known list page for that post type, we
2703	* fetch the current URL and replace the iframe's `#wpbody-content`
2704	* in place. The user sees the new state of the list — restored
2705	* post appears, deleted media disappears — without the WP loading
2706	* spinner that `location.reload()` would show.
2707	*
2708	* Single-edit pages (`post.php`, `post-new.php`, the HPOS order
2709	* editor) are deliberately NOT matched: replacing their body would
2710	* destroy any unsaved Gutenberg/classic-editor state. Plugins that
2711	* want specific behaviour for those pages can subscribe to the
2712	* same topic on `document` and handle it themselves.
2713	*
2714	* Matching is generic: the current page's "list type" is derived
2715	* from the URL (`edit.php` → its `post_type` param or `post`,
2716	* `upload.php` → `attachment`, `edit-comments.php` → `comment`)
2717	* and compared against the `<type>` captured from any
2718	* `os.<type>.changed` topic — so every custom post
2719	* type's `edit.php?post_type=X` screen participates with zero
2720	* per-type code. Non-`edit.php` list screens (e.g. WooCommerce's
2721	* HPOS `admin.php?page=wc-orders`) are covered by declarative
2722	* extra rules, filterable server-side via
2723	* `openstation_soft_reload_rules`.
2724	*
2725	* The fetch carries a custom header so a later phase can serve a
2726	* minimal partial response if we want to optimise; for now WP
2727	* returns the full admin page and we just pluck the body.
2728	*
2729	* Most WP list-table JS delegates on `document`/`body` and
2730	* survives the swap. The inline editors don't, so
2731	* `_openstationReinitListTables()` below re-runs Core's init
2732	* entry points afterwards. A page needing more than that should
2733	* listen for `os-soft-reloaded`, which fires after that re-init.
2734	* ----------------------------------------------------------------- */
2735	var OPENSTATION_SOFT_RELOAD_EXTRAS = /__OPENSTATION_SOFT_RELOAD_EXTRAS__/;
2736
2737	function _openstationEndsWith( s, suffix ) { return s.lastIndexOf( suffix ) === s.length - suffix.length; }
2738
2739	function _openstationListType() {
2740	if ( _openstationEndsWith( location.pathname, '/wp-admin/edit.php' ) ) {
2741	return new URLSearchParams( location.search ).get( 'post_type' ) \|\| 'post';
2742	}
2743	if ( _openstationEndsWith( location.pathname, '/wp-admin/upload.php' ) ) {
2744	return 'attachment';
2745	}
2746	if ( _openstationEndsWith( location.pathname, '/wp-admin/edit-comments.php' ) ) {
2747	return 'comment';
2748	}
2749	if ( _openstationEndsWith( location.pathname, '/wp-admin/plugins.php' ) ) {
2750	return 'plugin';
2751	}
2752	// plugin-install.php is intentionally not a soft-reload target.
2753	// Reloading that page mid-session would discard the user's search
2754	// results or reset an in-progress install. The page still emits
2755	// plugin.changed (via notifyPluginInstall below); it just doesn't
2756	// reload itself in response to one.
2757	return null;
2758	}
2759
2760	function _openstationMatchesExtraRule( rule ) {
2761	if ( ! rule \|\| ! rule.path ) {
2762	return false;
2763	}
2764	if ( ! _openstationEndsWith( location.pathname, '/wp-admin/' + rule.path ) ) {
2765	return false;
2766	}
2767	var params = new URLSearchParams( location.search );
2768	if ( rule.query ) {
2769	for ( var key in rule.query ) {
2770	if ( ! Object.prototype.hasOwnProperty.call( rule.query, key ) ) {
2771	continue;
2772	}
2773	if ( params.get( key ) !== String( rule.query[ key ] ) ) {
2774	return false;
2775	}
2776	}
2777	}
2778	if ( rule.queryAbsent ) {
2779	for ( var i = 0; i < rule.queryAbsent.length; i++ ) {
2780	if ( params.has( rule.queryAbsent[ i ] ) ) {
2781	return false;
2782	}
2783	}
2784	}
2785	return true;
2786	}
2787
2788	function _openstationSoftReloadTopicMatches( topic ) {
2789	var m = /^os\.(.+)\.changed$/.exec( topic );
2790	if ( m && m[ 1 ] === _openstationListType() ) {
2791	return true;
2792	}
2793	for ( var i = 0; i < OPENSTATION_SOFT_RELOAD_EXTRAS.length; i++ ) {
2794	var rule = OPENSTATION_SOFT_RELOAD_EXTRAS[ i ];
2795	if ( rule && rule.topic === topic && _openstationMatchesExtraRule( rule ) ) {
2796	return true;
2797	}
2798	}
2799	return false;
2800	}
2801
2802	var _openstationSoftReloadInFlight = false;
2803	var _openstationSoftReloadQueued = false;
2804
2805	/*
2806	* Re-init Core's list-table editors after a soft reload.
2807	*
2808	* Core's inline editors bind to elements inside `#wpbody-content`
2809	* instead of delegating on `document`: `#the-list` for Quick Edit
2810	* (inline-edit-post.js, inline-edit-tax.js), `#doaction` for Bulk
2811	* Edit, `#the-comment-list` for the comment inline editors. The
2812	* swap above throws those elements away, so the buttons keep
2813	* rendering and stop working.
2814	*
2815	* Only re-run an init whose every binding lands inside the
2816	* replaced subtree — then the fresh DOM gets it exactly once and
2817	* nothing accumulates. `setCommentsList()` fails that test and is
2818	* NOT called here: it re-runs `wpList`, whose `process()` binds on
2819	* `document` (which survives), so each call stacks another set of
2820	* comment row-action handlers and one Approve click ends up firing
2821	* N moderation requests. Those handlers were never broken by the
2822	* swap; only the closure state behind them goes stale, which costs
2823	* a stale total count until the next reload.
2824	*
2825	* Also left alone: `common.js`'s empty-bulk-action guard and
2826	* search-box mousedown, and `$.table_hotkeys` (comment moderation
2827	* shortcuts stop navigating; re-running it would double-register).
2828	* All degraded rather than dead, and each would mean copying
2829	* dozens of lines of Core in here.
2830	*/
2831	function _openstationReinitListTables() {
2832	var $ = window.jQuery;
2833	if ( ! $ ) {
2834	return;
2835	}
2836
2837	/*
2838	* Mobile row expander. `common.js` binds it per-`tbody`, all
2839	* of which we just replaced. Narrow windows are the norm in
2840	* the shell, so it is often the only row affordance on screen.
2841	*
2842	* Per-`tbody` on purpose. Delegating on the now-surviving
2843	* `#wpbody-content` would stack with Core's own binding on
2844	* first load and toggle the row twice, back to closed.
2845	*/
2846	$( '#wpbody-content tbody' ).on( 'click', '.toggle-row', function () {
2847	$( this ).closest( 'tr' ).toggleClass( 'is-expanded' );
2848	} );
2849
2850	if ( document.getElementById( 'the-list' ) ) {
2851	try {
2852	if ( window.inlineEditPost && typeof window.inlineEditPost.init === 'function' ) {
2853	window.inlineEditPost.init();
2854	}
2855	} catch ( err ) { _openstationWarnReinit( 'inline-edit-post', err ); }
2856	try {
2857	if ( window.inlineEditTax && typeof window.inlineEditTax.init === 'function' ) {
2858	window.inlineEditTax.init();
2859	}
2860	} catch ( err ) { _openstationWarnReinit( 'inline-edit-tax', err ); }
2861	}
2862
2863	if ( document.getElementById( 'the-comment-list' ) && window.commentReply ) {
2864	try {
2865	if ( typeof window.commentReply.init === 'function' ) {
2866	window.commentReply.init();
2867	}
2868	} catch ( err ) { _openstationWarnReinit( 'comment-reply', err ); }
2869	try {
2870	/*
2871	* Quick Edit / Reply / Edit on a comment row.
2872	* edit-comments.js binds this in its own doc-ready
2873	* rather than in `commentReply.init`, so there is
2874	* nothing to re-call. Mirror Core's handler.
2875	*/
2876	$( '#the-comment-list' ).on( 'click', '.comment-inline', function () {
2877	var $el = $( this ),
2878	action = 'replyto';
2879
2880	if ( 'undefined' !== typeof $el.data( 'action' ) ) {
2881	action = $el.data( 'action' );
2882	}
2883
2884	$( this ).attr( 'aria-expanded', 'true' );
2885	window.commentReply.open( $el.data( 'commentId' ), $el.data( 'postId' ), action );
2886	} );
2887	} catch ( err ) { _openstationWarnReinit( 'comment-inline', err ); }
2888	}
2889	}
2890
2891	/*
2892	* One failing re-init must not take the others, or the
2893	* `os-soft-reloaded` listeners after them, down with it. Warn
2894	* rather than swallow: a silent catch here looks exactly like the
2895	* bug this function exists to fix.
2896	*/
2897	function _openstationWarnReinit( which, err ) {
2898	if ( window.console && window.console.warn ) {
2899	window.console.warn( '[openstation] soft-reload re-init failed for ' + which + ':', err );
2900	}
2901	}
2902
2903	function _openstationSoftReload() {
2904	if ( _openstationSoftReloadInFlight ) {
2905	_openstationSoftReloadQueued = true;
2906	return;
2907	}
2908	_openstationSoftReloadInFlight = true;
2909	fetch( location.href, {
2910	credentials: 'same-origin',
2911	cache: 'no-cache',
2912	headers: { 'X-WP-Desktop-Soft-Reload': '1' }
2913	} ).then( function ( r ) {
2914	if ( ! r.ok ) throw new Error( 'soft-reload fetch failed: ' + r.status );
2915	return r.text();
2916	} ).then( function ( html ) {
2917	var doc = new DOMParser().parseFromString( html, 'text/html' );
2918	var fresh = doc.querySelector( '#wpbody-content' );
2919	var live = document.querySelector( '#wpbody-content' );
2920	if ( ! fresh \|\| ! live ) {
2921	/* Markup we expected isn't there — admin pages we
2922	* don't recognise (or core changes the structure).
2923	* Don't reload; let the iframe stay as it is rather
2924	* than show a spinner the user told us not to. */
2925	return;
2926	}
2927	/*
2928	* Swap the CONTENTS of `#wpbody-content`, keeping the
2929	* node. Keeping it preserves handlers delegated on it,
2930	* which is where `common.js` puts the row-actions focus
2931	* reveal. Core emits the container as a bare
2932	* `<div id="wpbody-content">`, so the only thing this
2933	* discards is any attribute a plugin added to `fresh`.
2934	*/
2935	live.replaceChildren.apply( live, Array.prototype.slice.call( fresh.childNodes ) );
2936	_openstationReinitListTables();
2937	try {
2938	document.dispatchEvent( new CustomEvent( 'os-soft-reloaded' ) );
2939	} catch ( _err ) {}
2940	/* Some WP scripts re-init on DOMContentLoaded only — let
2941	* pages opt-in to a re-init by listening to the event
2942	* above. We intentionally do NOT re-fire DOMContentLoaded;
2943	* that's almost always wrong (double-init of jQuery/WP). */
2944	} ).catch( function ( err ) {
2945	/* Network error — leave the iframe untouched. The user's
2946	* next manual interaction will refresh state, and the
2947	* next broadcast will retry. */
2948	if ( window.console && window.console.warn ) {
2949	window.console.warn( '[openstation] soft-reload skipped:', err );
2950	}
2951	} ).then( function () {
2952	_openstationSoftReloadInFlight = false;
2953	if ( _openstationSoftReloadQueued ) {
2954	_openstationSoftReloadQueued = false;
2955	_openstationSoftReload();
2956	}
2957	} );
2958	}
2959
2960	document.addEventListener( 'os-broadcast', function ( e ) {
2961	var detail = e.detail \|\| {};
2962	var topic = detail.topic;
2963	if ( ! topic ) return;
2964	if ( _openstationSoftReloadTopicMatches( topic ) ) {
2965	_openstationSoftReload();
2966	}
2967	} );
2968
2969	window.addEventListener( 'message', function( e ) {
2970	if ( e.origin !== origin ) {
2971	return;
2972	}
2973	if ( ! e.data \|\| e.data.type !== 'os-toggle-panel' ) {
2974	return;
2975	}
2976	var target = null;
2977	if ( e.data.panel === 'screen-options' && screenOptionsBtn ) {
2978	target = screenOptionsBtn;
2979	} else if ( e.data.panel === 'help' && helpBtn ) {
2980	target = helpBtn;
2981	}
2982	if ( ! target ) {
2983	return;
2984	}
2985	if ( target.getAttribute( 'aria-expanded' ) !== 'true' ) {
2986	var other = target === screenOptionsBtn ? helpBtn : screenOptionsBtn;
2987	forceClose( other );
2988	}
2989	target.click();
2990	} );
2991
2992	/* -----------------------------------------------------------------
2993	* Connection bridge — iframe side.
2994	*
2995	* Plugins call `wp.os.iframe.publish(topic, payload)` /
2996	* `subscribe(topic, cb)` / `onConnection(cb)` to talk to a parent-
2997	* side `wp.os.connect()` caller. The shell only routes;
2998	* topic semantics are plugin-defined.
2999	*
3000	* Connections are tracked locally so `onConnection` can fire when
3001	* the parent opens a new channel (typical use: start emitting
3002	* heavy events only after at least one consumer subscribed). Each
3003	* connection carries a topic-allowlist negotiated at handshake
3004	* time — wildcard ('*') subscribers see everything.
3005	* ----------------------------------------------------------------- */
3006	var _wpdConnections = {};
3007	var _wpdConnectionListeners = [];
3008	var _wpdSubs = {}; // topic → [cb, ...]
3009	var _wpdChannelSubs = {}; // channel → [cb, ...] (window-channel API)
3010	var _wpdParentOrigin = window.location.origin;
3011	var _wpdWindowId = null; // host window id, from the handshake
3012	var _wpdWindowIdWaiters = []; // pending whenWindowId() resolvers
3013
3014	/* Stash the host window's id (the parent's handshake carries
3015	* `targetWindowId`) and flush any `whenWindowId()` waiters. Same
3016	* contract as `assets/js/iframe-bridge.js`. */
3017	function _wpdSetWindowId( id ) {
3018	if ( ! id \|\| _wpdWindowId === id ) {
3019	return;
3020	}
3021	_wpdWindowId = id;
3022	var waiters = _wpdWindowIdWaiters.splice( 0 );
3023	for ( var i = 0; i < waiters.length; i++ ) {
3024	try {
3025	waiters[ i ]( id );
3026	} catch ( _err ) { /* swallow */ }
3027	}
3028	}
3029
3030	function _wpdEmitToParent( connectionId, topic, payload ) {
3031	try {
3032	window.parent.postMessage( {
3033	type: 'os-bridge-publish',
3034	connectionId: connectionId,
3035	topic: topic,
3036	payload: payload
3037	}, _wpdParentOrigin );
3038	} catch ( _err ) { /* parent gone */ }
3039	}
3040
3041	window.addEventListener( 'message', function ( ev ) {
3042	if ( ev.origin !== _wpdParentOrigin ) {
3043	return;
3044	}
3045	var data = ev && ev.data;
3046	if ( ! data \|\| typeof data !== 'object' \|\| typeof data.type !== 'string' ) {
3047	return;
3048	}
3049
3050	if ( data.type === 'os-bridge-beforeunload-query' ) {
3051	var prevent = false;
3052	var msg = '';
3053
3054	function shimReturnValue( ev ) {
3055	Object.defineProperty( ev, 'returnValue', {
3056	get: function() { return this._returnValue \|\| ''; },
3057	set: function( v ) { this._returnValue = v; }
3058	} );
3059	}
3060
3061	function checkPrevent( ev, result ) {
3062	var hasRes = typeof result === 'string' && result !== '';
3063	var hasRetVal = typeof ev.returnValue === 'string' && ev.returnValue !== '';
3064	if ( ev.defaultPrevented \|\| hasRes \|\| hasRetVal ) {
3065	prevent = true;
3066	if ( hasRes ) {
3067	msg = result;
3068	} else if ( hasRetVal ) {
3069	msg = ev.returnValue;
3070	}
3071	}
3072	}
3073
3074	var unloadEvent;
3075	try {
3076	unloadEvent = new Event( 'beforeunload', { cancelable: true } );
3077	} catch ( _err ) {
3078	unloadEvent = document.createEvent( 'Event' );
3079	unloadEvent.initEvent( 'beforeunload', false, true );
3080	}
3081	shimReturnValue( unloadEvent );
3082
3083	if ( typeof window.onbeforeunload === 'function' ) {
3084	var res = window.onbeforeunload( unloadEvent );
3085	checkPrevent( unloadEvent, res );
3086	}
3087	if ( ! prevent ) {
3088	var dispatchEvent;
3089	try {
3090	dispatchEvent = new Event( 'beforeunload', { cancelable: true } );
3091	} catch ( _err ) {
3092	dispatchEvent = document.createEvent( 'Event' );
3093	dispatchEvent.initEvent( 'beforeunload', false, true );
3094	}
3095	shimReturnValue( dispatchEvent );
3096	window.dispatchEvent( dispatchEvent );
3097	checkPrevent( dispatchEvent, null );
3098	}
3099
3100	try {
3101	window.parent.postMessage( {
3102	type: 'os-bridge-beforeunload-response',
3103	prevent: prevent,
3104	message: msg
3105	}, _wpdParentOrigin );
3106	} catch ( _err ) { /* swallow */ }
3107	return;
3108	}
3109
3110	if ( data.type === 'os-bridge-handshake' && typeof data.connectionId === 'string' ) {
3111	/* The parent's handshake carries the host window id —
3112	* stash it so `wp.os.iframe.windowId` and
3113	* `whenWindowId()` can serve callers that need to know
3114	* which native window opened this iframe. */
3115	if ( typeof data.targetWindowId === 'string' && data.targetWindowId !== '' ) {
3116	_wpdSetWindowId( data.targetWindowId );
3117	}
3118	if ( _wpdConnections[ data.connectionId ] ) {
3119	/* Re-handshake on iframe-ready re-arm — no-op besides
3120	* acking again so the parent can resume. */
3121	try {
3122	window.parent.postMessage( {
3123	type: 'os-bridge-handshake-ack',
3124	connectionId: data.connectionId
3125	}, _wpdParentOrigin );
3126	} catch ( _err ) { /* swallow */ }
3127	return;
3128	}
3129	var conn = {
3130	id: data.connectionId,
3131	topics: Array.isArray( data.topics ) ? data.topics.slice() : []
3132	};
3133	_wpdConnections[ conn.id ] = conn;
3134	try {
3135	window.parent.postMessage( {
3136	type: 'os-bridge-handshake-ack',
3137	connectionId: conn.id
3138	}, _wpdParentOrigin );
3139	} catch ( _err ) { /* swallow */ }
3140	for ( var i = 0; i < _wpdConnectionListeners.length; i++ ) {
3141	try {
3142	_wpdConnectionListeners[ i ]( {
3143	id: conn.id,
3144	topics: conn.topics.slice()
3145	} );
3146	} catch ( _err ) { /* swallow listener */ }
3147	}
3148	return;
3149	}
3150
3151	if ( data.type === 'os-bridge-publish' && typeof data.topic === 'string' ) {
3152	var bucket = _wpdSubs[ data.topic ];
3153	if ( bucket ) {
3154	for ( var j = 0; j < bucket.length; j++ ) {
3155	try {
3156	bucket[ j ]( data.payload, { topic: data.topic, connectionId: data.connectionId } );
3157	} catch ( _err ) { /* swallow subscriber */ }
3158	}
3159	}
3160	var wildcard = _wpdSubs[ '*' ];
3161	if ( wildcard ) {
3162	for ( var k = 0; k < wildcard.length; k++ ) {
3163	try {
3164	wildcard[ k ]( data.payload, { topic: data.topic, connectionId: data.connectionId } );
3165	} catch ( _err ) { /* swallow */ }
3166	}
3167	}
3168	return;
3169	}
3170
3171	if ( data.type === 'os-bridge-disconnect' && typeof data.connectionId === 'string' ) {
3172	delete _wpdConnections[ data.connectionId ];
3173	return;
3174	}
3175
3176	/* Unified window-channel delivery from the parent. Fires
3177	* every `wp.os.on( channel, cb )` subscriber for the
3178	* matching channel — same protocol as
3179	* `assets/js/iframe-bridge.js`. */
3180	if ( data.type === 'os-window-send' && typeof data.channel === 'string' && data.channel !== '' ) {
3181	var meta = { channel: data.channel };
3182	var cBucket = _wpdChannelSubs[ data.channel ];
3183	if ( cBucket ) {
3184	var cBucketSnap = cBucket.slice();
3185	for ( var ci = 0; ci < cBucketSnap.length; ci++ ) {
3186	try {
3187	cBucketSnap[ ci ]( data.payload, meta );
3188	} catch ( _err ) { /* swallow */ }
3189	}
3190	}
3191	var cWildcard = _wpdChannelSubs[ '*' ];
3192	if ( cWildcard ) {
3193	var cWildcardSnap = cWildcard.slice();
3194	for ( var cw = 0; cw < cWildcardSnap.length; cw++ ) {
3195	try {
3196	cWildcardSnap[ cw ]( data.payload, meta );
3197	} catch ( _err ) { /* swallow */ }
3198	}
3199	}
3200	return;
3201	}
3202	} );
3203
3204	var iframeApi = {
3205	/**
3206	* Publish a payload under a topic. Sent to every connection
3207	* — typical case is one connection per parent caller, but
3208	* a debug console may have several at once.
3209	*/
3210	publish: function ( topic, payload ) {
3211	if ( typeof topic !== 'string' \|\| topic === '' ) {
3212	return;
3213	}
3214	var ids = Object.keys( _wpdConnections );
3215	for ( var i = 0; i < ids.length; i++ ) {
3216	_wpdEmitToParent( ids[ i ], topic, payload );
3217	}
3218	},
3219	/**
3220	* Subscribe to a topic. Returns an unsubscribe function.
3221	* Use `'*'` to receive every published payload (debugging).
3222	*/
3223	subscribe: function ( topic, cb ) {
3224	if ( typeof topic !== 'string' \|\| topic === '' \|\| typeof cb !== 'function' ) {
3225	return function () {};
3226	}
3227	var bucket = _wpdSubs[ topic ];
3228	if ( ! bucket ) {
3229	bucket = [];
3230	_wpdSubs[ topic ] = bucket;
3231	}
3232	bucket.push( cb );
3233	return function () {
3234	var i = bucket.indexOf( cb );
3235	if ( i >= 0 ) {
3236	bucket.splice( i, 1 );
3237	}
3238	};
3239	},
3240	/**
3241	* Notified whenever a parent caller opens a connection. Use
3242	* to start emitting heavy publish events only when somebody
3243	* is listening.
3244	*/
3245	onConnection: function ( cb ) {
3246	if ( typeof cb !== 'function' ) {
3247	return function () {};
3248	}
3249	_wpdConnectionListeners.push( cb );
3250	/* Replay current connections — late subscribers still
3251	* see who's already there. */
3252	var ids = Object.keys( _wpdConnections );
3253	for ( var i = 0; i < ids.length; i++ ) {
3254	try {
3255	cb( {
3256	id: _wpdConnections[ ids[ i ] ].id,
3257	topics: _wpdConnections[ ids[ i ] ].topics.slice()
3258	} );
3259	} catch ( _err ) { /* swallow */ }
3260	}
3261	return function () {
3262	var i = _wpdConnectionListeners.indexOf( cb );
3263	if ( i >= 0 ) {
3264	_wpdConnectionListeners.splice( i, 1 );
3265	}
3266	};
3267	},
3268	/**
3269	* Iframe-initiated connection request. See
3270	* `assets/js/iframe-bridge.js` — same shape, same protocol.
3271	*/
3272	requestConnection: function ( opts ) {
3273	opts = opts \|\| {};
3274	var topics = Array.isArray( opts.topics ) ? opts.topics.slice() : [];
3275	var requestId = 'wpdir-' + Math.random().toString( 36 ).slice( 2, 10 );
3276
3277	return new Promise( function ( resolve, reject ) {
3278	var settled = false;
3279	var timeoutMs = typeof opts.timeoutMs === 'number'
3280	? opts.timeoutMs
3281	: 5000;
3282
3283	function settle( ok, value ) {
3284	if ( settled ) {
3285	return;
3286	}
3287	settled = true;
3288	window.removeEventListener( 'message', onAck );
3289	clearTimeout( timer );
3290	if ( ok ) {
3291	resolve( value );
3292	} else {
3293	reject( value );
3294	}
3295	}
3296
3297	function onAck( ev ) {
3298	if ( ev.origin !== _wpdParentOrigin ) {
3299	return;
3300	}
3301	var d = ev && ev.data;
3302	if (
3303	! d \|\|
3304	typeof d !== 'object' \|\|
3305	d.type !== 'os-bridge-connection-ack' \|\|
3306	d.requestId !== requestId
3307	) {
3308	return;
3309	}
3310	if ( d.accepted ) {
3311	var summary = {
3312	id: typeof d.connectionId === 'string' ? d.connectionId : '',
3313	topics: topics.slice()
3314	};
3315	if ( typeof opts.onOpen === 'function' ) {
3316	try { opts.onOpen( summary ); } catch ( _err ) { /* swallow */ }
3317	}
3318	settle( true, summary );
3319	} else {
3320	settle( false, new Error( d.reason \|\| 'rejected' ) );
3321	}
3322	}
3323	window.addEventListener( 'message', onAck );
3324
3325	var timer = setTimeout( function () {
3326	settle( false, new Error( 'timeout' ) );
3327	}, timeoutMs );
3328
3329	try {
3330	window.parent.postMessage( {
3331	type: 'os-bridge-connection-request',
3332	requestId: requestId,
3333	topics: topics
3334	}, _wpdParentOrigin );
3335	} catch ( err ) {
3336	settle( false, err );
3337	}
3338	} );
3339	},
3340	/**
3341	* Window-chrome helpers. See `assets/js/iframe-bridge.js` —
3342	* same shape, same protocol. `setSlot` is HTML-only
3343	* (sandboxed via `textContent` on the parent side).
3344	*/
3345	chrome: {
3346	setTheme: function ( tokens ) {
3347	try {
3348	window.parent.postMessage( {
3349	type: 'os-chrome-theme',
3350	tokens: tokens \|\| {}
3351	}, _wpdParentOrigin );
3352	} catch ( _err ) { /* parent gone */ }
3353	},
3354	setControls: function ( config ) {
3355	try {
3356	window.parent.postMessage( {
3357	type: 'os-chrome-controls',
3358	config: config === undefined ? null : config
3359	}, _wpdParentOrigin );
3360	} catch ( _err ) { /* parent gone */ }
3361	},
3362	setSlot: function ( name, html ) {
3363	if ( typeof name !== 'string' \|\| name === '' ) {
3364	return;
3365	}
3366	try {
3367	window.parent.postMessage( {
3368	type: 'os-chrome-slot',
3369	slot: name,
3370	html: typeof html === 'string' ? html : ''
3371	}, _wpdParentOrigin );
3372	} catch ( _err ) { /* parent gone */ }
3373	}
3374	},
3375	/**
3376	* The id of the window the parent shell opened to host this
3377	* iframe. Populated by the first connection handshake (the
3378	* parent's handshake carries `targetWindowId`). `null` until
3379	* then.
3380	*/
3381	get windowId() {
3382	return _wpdWindowId;
3383	},
3384	/**
3385	* Resolve once `windowId` is populated by the first handshake.
3386	* Resolves immediately if already known. Never rejects — guard
3387	* with `isParentReachable()` first.
3388	*/
3389	whenWindowId: function () {
3390	if ( _wpdWindowId !== null ) {
3391	return Promise.resolve( _wpdWindowId );
3392	}
3393	return new Promise( function ( resolve ) {
3394	_wpdWindowIdWaiters.push( resolve );
3395	} );
3396	},
3397	/**
3398	* Whether the parent frame is same-origin and reachable. All
3399	* bridge messages hard-filter on origin — a cross-origin
3400	* parent silently drops everything we post. Use this predicate
3401	* to fail fast instead of debugging vanishing messages.
3402	*/
3403	isParentReachable: function () {
3404	if ( ! window.parent \|\| window.parent === window ) {
3405	return false;
3406	}
3407	try {
3408	/* Cross-origin parents throw on `.location.origin`
3409	* access; same-origin parents return a string we can
3410	* compare to our own origin. */
3411	return window.parent.location.origin === _wpdParentOrigin;
3412	} catch ( _err ) {
3413	return false;
3414	}
3415	}
3416	};
3417
3418	if ( ! window.wp ) { window.wp = {}; }
3419	if ( ! window.wp.os ) { window.wp.os = {}; }
3420	window.wp.os.iframe = iframeApi;
3421
3422	/* Unified window-channel API. Mirror of the equivalent block
3423	* in `assets/js/iframe-bridge.js` — keep both in sync. The
3424	* parent shell posts `os-window-send` on
3425	* `Window.send( channel, payload )`; iframe-side handlers
3426	* register via `wp.os.on( channel, cb )`. Sending the
3427	* other way (`wp.os.send`) posts up to the parent where
3428	* `Window.on( channel, cb )` subscribers fire. */
3429	if ( typeof window.wp.os.send !== 'function' ) {
3430	window.wp.os.send = function ( channel, payload ) {
3431	if ( typeof channel !== 'string' \|\| channel === '' ) {
3432	return;
3433	}
3434	try {
3435	window.parent.postMessage( {
3436	type: 'os-window-publish',
3437	channel: channel,
3438	payload: payload
3439	}, _wpdParentOrigin );
3440	} catch ( _err ) { /* parent gone */ }
3441	};
3442	}
3443	if ( typeof window.wp.os.on !== 'function' ) {
3444	window.wp.os.on = function ( channel, cb ) {
3445	if ( typeof channel !== 'string' \|\| channel === '' \|\| typeof cb !== 'function' ) {
3446	return function () {};
3447	}
3448	var bucket = _wpdChannelSubs[ channel ];
3449	if ( ! bucket ) {
3450	bucket = [];
3451	_wpdChannelSubs[ channel ] = bucket;
3452	}
3453	bucket.push( cb );
3454	return function () {
3455	var i = bucket.indexOf( cb );
3456	if ( i >= 0 ) {
3457	bucket.splice( i, 1 );
3458	}
3459	};
3460	};
3461	}
3462
3463	/* -----------------------------------------------------------------
3464	* Stale-nonce recovery after a session-expiry re-login.
3465	*
3466	* When the user's session expires while a chromeless window is
3467	* open, this iframe does NOT show core's `wp-auth-check` login
3468	* modal — `openstation_chromeless_suppress_auth_check()` keeps
3469	* the modal assets out of chromeless requests so the parent
3470	* shell owns the single prompt for the whole desktop. Detection
3471	* still works without the modal JS: core attaches the
3472	* `wp-auth-check` boolean to every heartbeat response
3473	* server-side, and this iframe's own heartbeat keeps ticking.
3474	*
3475	* After re-auth the auth cookie is fresh — but every per-page
3476	* nonce cached in JS globals (`_wpUpdatesSettings.ajax_nonce`,
3477	* `commonL10n.nonce`, Gutenberg's `wpApiSettings.nonce`, etc.)
3478	* was minted under the OLD session and is now rejected by
3479	* `check_ajax_referer`. WP reports that as "Cookie check
3480	* failed" on the next plugin Install / Activate / Update click,
3481	* which is misleading: the cookie is fine; the nonce is stale.
3482	*
3483	* Fix: watch jQuery's `heartbeat-tick`. If we ever see
3484	* `wp-auth-check: false` and then later see the same field flip
3485	* back to `true`, the user re-authed mid-session and every
3486	* cached nonce in this iframe is stale — reload so they
3487	* regenerate from the fresh session. The parent is nudged
3488	* first (`os-reauth-detected`) so its own recovery
3489	* (`src/auth-recovery/index.ts`: in-place nonce refresh + a
3490	* reload sweep over sibling iframes that haven't ticked yet)
3491	* starts immediately instead of waiting for the parent's
3492	* heartbeat schedule.
3493	*
3494	* If jQuery never loads on this page (rare — most admin screens
3495	* pull it for heartbeat already), this block is a no-op.
3496	* ----------------------------------------------------------------- */
3497	( function _wpdInstallAuthCheckRecovery() {
3498	var attached = false;
3499	var sawLoggedOut = false;
3500	function attach() {
3501	if ( attached \|\| ! window.jQuery ) {
3502	return;
3503	}
3504	attached = true;
3505	window.jQuery( document ).on( 'heartbeat-tick.osAuthRecover', function ( ev, data ) {
3506	if ( ! data \|\| typeof data !== 'object' \|\| ! ( 'wp-auth-check' in data ) ) {
3507	return;
3508	}
3509	if ( data[ 'wp-auth-check' ] === false ) {
3510	sawLoggedOut = true;
3511	return;
3512	}
3513	if ( sawLoggedOut && data[ 'wp-auth-check' ] === true ) {
3514	sawLoggedOut = false;
3515	// Tell the parent shell BEFORE we reload so it
3516	// doesn't have to wait for its own heartbeat
3517	// tick (up to 60s on an idle shell) to discover
3518	// the cookie is fresh. Parent runs its full
3519	// recovery path on receipt — overlay teardown,
3520	// iframe reload sweep, then a hard reload.
3521	try {
3522	if ( window.parent && window.parent !== window ) {
3523	window.parent.postMessage(
3524	{ type: 'os-reauth-detected' },
3525	window.location.origin
3526	);
3527	}
3528	} catch ( _err ) { /* parent gone */ }
3529	try { window.location.reload(); } catch ( _err ) { /* swallow */ }
3530	}
3531	} );
3532	}
3533	attach();
3534	if ( document.readyState === 'loading' ) {
3535	document.addEventListener( 'DOMContentLoaded', attach, { once: true } );
3536	}
3537	window.addEventListener( 'load', attach, { once: true } );
3538	} )();
3539
3540	/* -----------------------------------------------------------------
3541	* Shiny-update watcher (GH#296).
3542	*
3543	* Core's updates.js applies plugin/theme updates and deletes over
3544	* AJAX — no navigation, so the load-time payload emit above never
3545	* re-fires and the shell's update notifiers (admin-bar circle-arrows
3546	* count, dock Plugins badge) keep showing the pre-update numbers
3547	* until a hard refresh. Watch the jQuery events updates.js triggers
3548	* on `document` after each job and nudge the shell to spend one
3549	* `refreshMenu()` probe, whose payload carries fresh counts.
3550	*
3551	* Error events are included deliberately: `wp_ajax_update_plugin`
3552	* calls `wp_update_plugins()` up front, which can mutate the
3553	* update transient even when the upgrade itself fails.
3554	*
3555	* When updates.js is processing a queue (bulk-selected shiny
3556	* updates), per-job events fire while later jobs are still
3557	* pending — skip those and let the final job's event send the one
3558	* nudge. The shell debounces on its side too, so this is purely
3559	* an optimization, not a correctness gate.
3560	*
3561	* If jQuery never loads on this page this block is a no-op — and
3562	* so is updates.js, which requires it.
3563	* ----------------------------------------------------------------- */
3564	( function _wpdInstallShinyUpdateWatcher() {
3565	var attached = false;
3566	function notify() {
3567	try {
3568	var queue = window.wp && window.wp.updates && window.wp.updates.queue;
3569	if ( queue && queue.length > 0 ) {
3570	return;
3571	}
3572	} catch ( _err ) { /* queue introspection is best-effort */ }
3573	try {
3574	var shell = window.top \|\| window.parent;
3575	if ( shell && shell !== window ) {
3576	shell.postMessage(
3577	{ type: 'os-updates-changed' },
3578	window.location.origin
3579	);
3580	}
3581	} catch ( _err ) { /* shell gone or cross-origin */ }
3582	}
3583	function notifyPluginInstall() {
3584	// `wp-plugin-install-success` fires after an AJAX install on
3585	// plugin-install.php with no page navigation. The PHP
3586	// `upgrader_process_complete` hook records the change correctly,
3587	// but `openstation_content_changes_emit_footer` only runs on
3588	// chromeless page requests — admin-ajax.php is not in the
3589	// chromeless allowlist, so there's no in-band emit from that
3590	// request. The Heartbeat buffer will eventually deliver it, but
3591	// posting directly here lets the Installed tab refresh
3592	// immediately. The later Heartbeat tick will produce a second
3593	// broadcast; consumers handle no-op refreshes gracefully.
3594	try {
3595	var shell = window.top \|\| window.parent;
3596	if ( shell && shell !== window ) {
3597	shell.postMessage(
3598	{
3599	type: 'os-broadcast',
3600	topic: 'os.plugin.changed',
3601	payload: { source: 'chromeless-bridge', action: 'install' }
3602	},
3603	window.location.origin
3604	);
3605	}
3606	} catch ( _err ) { /* shell gone or cross-origin */ }
3607	}
3608	function attach() {
3609	if ( attached \|\| ! window.jQuery ) {
3610	return;
3611	}
3612	attached = true;
3613	window.jQuery( document ).on(
3614	[
3615	'wp-plugin-update-success.osUpdates',
3616	'wp-plugin-update-error.osUpdates',
3617	'wp-plugin-delete-success.osUpdates',
3618	'wp-theme-update-success.osUpdates',
3619	'wp-theme-update-error.osUpdates',
3620	'wp-theme-delete-success.osUpdates'
3621	].join( ' ' ),
3622	notify
3623	);
3624	window.jQuery( document ).on( 'wp-plugin-install-success.osUpdates', notifyPluginInstall );
3625	}
3626	attach();
3627	if ( document.readyState === 'loading' ) {
3628	document.addEventListener( 'DOMContentLoaded', attach, { once: true } );
3629	}
3630	window.addEventListener( 'load', attach, { once: true } );
3631	} )();
3632
3633	/*
3634	* Bridge-ready signal. Every listener installed by this script
3635	* is now wired; let the parent shell know so it can fire
3636	* `HOOKS.IFRAME_READY` and re-arm any connection handshakes
3637	* (`src/connection/index.ts#onIframeReady`) that arrived before
3638	* we were listening. Without this, every consumer of
3639	* `HOOKS.IFRAME_READY` (devtools replay, connection rearm)
3640	* stays silent for the lifetime of the iframe — documented
3641	* surface that never actually fires.
3642	*
3643	* Posted to the parent's own origin only. Wrapped in try/catch
3644	* because cross-origin parents (top-level admin opened outside
3645	* the shell) would throw on the postMessage and we don't want a
3646	* single failed dispatch to wedge anything else above.
3647	*/
3648	try {
3649	if ( window.parent && window.parent !== window ) {
3650	window.parent.postMessage(
3651	{ type: 'os-ready' },
3652	window.location.origin
3653	);
3654	}
3655	} catch ( _err ) { /* parent gone or cross-origin */ }
3656	} )();
3657	JS;
3658
3659	// On pages that don't carry a full payload, ship the lightweight
3660	// menu signature so the shell can detect an off-allowlist menu
3661	// change (e.g. a CPT registered via a settings tool) and refresh
3662	// only then. The full payload already embeds its own `menuSig`, so
3663	// there's no point recomputing it when one is being sent. GH#325.
3664	$menu_sig_json = 'null';
3665	if ( 'null' === $menu_payload_json ) {
3666	$menu_sig = openstation_menu_signature();
3667	if ( '' !== $menu_sig ) {
3668	$encoded_sig = wp_json_encode( $menu_sig );
3669	if ( false !== $encoded_sig ) {
3670	$menu_sig_json = $encoded_sig;
3671	}
3672	}
3673	}
3674
3675	// Declarative soft-reload rules for list screens that are NOT a
3676	// standard `edit.php?post_type=<type>` / `upload.php` /
3677	// `edit-comments.php` page (those are matched generically in the
3678	// bridge script). Rule shape:
3679	// - `topic` — the `os.<type>.changed` topic.
3680	// - `path` — wp-admin filename (`admin.php`).
3681	// - `query` — required query params (exact match).
3682	// - `queryAbsent` — params that must NOT be present.
3683	//
3684	// The default rule covers WooCommerce's HPOS orders list.
3685	// `queryAbsent: [ 'action' ]` is load-bearing: with `&action=edit`
3686	// the same path is the single-order EDITOR, which must keep the
3687	// single-edit exclusion (a soft reload would destroy unsaved
3688	// order state). Shipped unconditionally — when WooCommerce is
3689	// absent the URL never renders and the rule is inert.
3690	$soft_reload_rules = array(
3691	array(
3692	'topic' => 'os.shop_order.changed',
3693	'path' => 'admin.php',
3694	'query' => array( 'page' => 'wc-orders' ),
3695	'queryAbsent' => array( 'action' ),
3696	),
3697	);
3698
3699	/**
3700	* Filters the declarative soft-reload rules injected into every
3701	* chromeless iframe.
3702	*
3703	* Lets a plugin whose list screen lives on a custom admin URL
3704	* participate in cross-window refresh: pair a rule here with
3705	* `openstation_content_changes_record()` calls (or your own
3706	* `os.<type>.changed` broadcasts) on the publish side.
3707	*
3708	* @param array $soft_reload_rules Rule arrays with keys `topic`,
3709	* `path`, `query`, `queryAbsent`.
3710	*/
3711	$soft_reload_rules = (array) apply_filters( 'openstation_soft_reload_rules', $soft_reload_rules );
3712	$soft_reload_json = wp_json_encode( array_values( $soft_reload_rules ) );
3713	if ( ! $soft_reload_json ) {
3714	$soft_reload_json = '[]';
3715	}
3716
3717	// Substitute the server-built menu payload into the bridge
3718	// script. `wp_json_encode` guarantees safe JSON output — no need
3719	// for an additional escape pass. When the page isn't on our
3720	// menu-altering allowlist the placeholder resolves to `null` and
3721	// the bridge skips the postMessage.
3722	$js = str_replace( '/__OPENSTATION_MENU_PAYLOAD__/', $menu_payload_json, $js );
3723	$js = str_replace( '/__OPENSTATION_MENU_SIG__/', $menu_sig_json, $js );
3724	$js = str_replace( '/__OPENSTATION_CONTENT_IDENTITY__/', $content_identity_json, $js );
3725	$js = str_replace( '/__OPENSTATION_SOFT_RELOAD_EXTRAS__/', $soft_reload_json, $js );
3726
3727	wp_print_inline_script_tag( $js );
3728	}
3729	add_action( 'admin_footer', 'openstation_chromeless_bridge_script' );
3730