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

chromeless-bridge.php in OpenStation: Desktop Windows, Dock & Virtual Desktops for WP Admin 1.0.0, 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 only meant to live inside a
306	// openstation window iframe. If the top window IS this page, the
307	// user ended up here directly — either bookmarked it, followed a
308	// stale link, or got stranded by a bad portal redirect. Without
309	// an admin bar there's no toggle to turn OpenStation off, so
310	// strip the chromeless flag and reload as classic admin. That
311	// puts the admin bar back and lets the user decide what to do.
312	if ( ! window.parent \|\| window.parent === window ) {
313	try {
314	var here = new URL( window.location.href );
315	if ( here.searchParams.has( 'openstation_chromeless' ) ) {
316	here.searchParams.delete( 'openstation_chromeless' );
317	here.searchParams.delete( 'desktop_mode_portal' );
318	window.location.replace( here.toString() );
319	}
320	} catch ( err ) {
321	/* URL parse failure — let the broken state stand rather than
322	* navigate somewhere worse. */
323	}
324	return;
325	}
326
327	/*
328	* Content-identity announcement. The server resolved which object
329	* this page shows (post / comment / attachment, plus the root post
330	* a child belongs to) while it still had real admin context; hand
331	* it to the parent's relations engine. Deliberately posted even
332	* when the identity is null — a full-page navigation away from an
333	* identified screen must CLEAR the stale identity, and every
334	* navigation re-runs admin_footer, so this doubles as the
335	* re-announce-on-navigate path.
336	*
337	* Posted FIRST, right after the top-frame escape hatch, because it
338	* depends on nothing else in this script: a page-specific runtime
339	* failure in any of the feature blocks below (screen-meta harvest,
340	* command scan, link interceptor, …) must not cost the shell its
341	* window relations. The `os-ready` signal intentionally
342	* stays LAST — it means "every listener below is wired".
343	*/
344	try {
345	window.parent.postMessage(
346	{
347	type: 'os-content-identity',
348	identity: /__OPENSTATION_CONTENT_IDENTITY__/
349	},
350	window.location.origin
351	);
352	} catch ( _err ) { /* parent gone or cross-origin */ }
353
354	/*
355	* Editor save-watcher — keeps the identity fresh across block-editor
356	* saves. Gutenberg saves over REST without a page navigation, so the
357	* announcement above (rebuilt only on admin_footer) goes stale the
358	* moment the user adds a category, links a post, or sets a featured
359	* image — the parent's Related menu and window ties would show the
360	* pre-save state until a manual reload. After every real
361	* (non-autosave) save completes, refetch a server-recomputed
362	* identity from `desktop-mode/v1/content-identity` and re-announce
363	* it; the parent engine diffs and repaints. The classic editor
364	* reloads the page on save, which re-runs the announcement
365	* naturally — this block never engages there (no `core/editor`
366	* store on the page).
367	*/
368	window.addEventListener( 'load', function () {
369	try {
370	var wpg = window.wp;
371	if ( ! wpg \|\| ! wpg.data \|\| ! wpg.apiFetch \|\| typeof wpg.data.select !== 'function' ) {
372	return;
373	}
374	var editor = wpg.data.select( 'core/editor' );
375	if (
376	! editor \|\|
377	typeof editor.isSavingPost !== 'function' \|\|
378	typeof editor.getCurrentPostId !== 'function'
379	) {
380	return;
381	}
382	var wasSaving = false;
383	var wasNew = false;
384	var inFlight = false;
385	wpg.data.subscribe( function () {
386	var saving =
387	editor.isSavingPost() &&
388	! ( editor.isAutosavingPost && editor.isAutosavingPost() );
389	if ( saving && ! wasSaving ) {
390	// Capture "is this the first real save?" on the tick
391	// where saving STARTS — after the save completes the
392	// post is no longer new and the flag reads false.
393	wasNew = !! (
394	editor.isEditedPostNew && editor.isEditedPostNew()
395	);
396	}
397	var finished = wasSaving && ! saving;
398	wasSaving = saving;
399	if ( ! finished \|\| inFlight ) {
400	return;
401	}
402	if (
403	editor.didPostSaveRequestSucceed &&
404	! editor.didPostSaveRequestSucceed()
405	) {
406	return;
407	}
408	var postId = editor.getCurrentPostId();
409	if ( ! postId ) {
410	return;
411	}
412
413	/*
414	* Announce the save as a cross-window content-change
415	* broadcast. Gutenberg saves over REST with no
416	* navigation, so the server-side chromeless-footer
417	* emitter (includes/content-changes.php) never runs
418	* here — this is the only instant path for block-editor
419	* saves. The parent's broadcast receiver fans it out;
420	* list windows showing this post type refresh.
421	*/
422	if ( editor.getCurrentPostType ) {
423	try {
424	window.parent.postMessage(
425	{
426	type: 'os-broadcast',
427	topic:
428	'os.' +
429	editor.getCurrentPostType() +
430	'.changed',
431	payload: {
432	source: 'editor',
433	action: wasNew ? 'created' : 'updated',
434	ids: [ postId ],
435	},
436	},
437	window.location.origin
438	);
439	} catch ( _err ) { /* parent gone */ }
440	}
441	inFlight = true;
442	wpg
443	.apiFetch( {
444	path: '/desktop-mode/v1/content-identity?post=' + postId,
445	} )
446	.then( function ( res ) {
447	if ( res && res.identity ) {
448	window.parent.postMessage(
449	{
450	type: 'os-content-identity',
451	identity: res.identity,
452	},
453	window.location.origin
454	);
455	}
456	} )
457	.catch( function () {
458	/* Transient — the next save retries. */
459	} )
460	.finally( function () {
461	inFlight = false;
462	} );
463	} );
464	} catch ( _err ) {
465	/* Editor stores absent or shaped differently — nothing to watch. */
466	}
467	} );
468
469	/*
470	* Observability — iframe error + network capture.
471	*
472	* Everything admin-interesting (REST failures from Gutenberg,
473	* admin-ajax 500s, plugin console warnings) fires INSIDE the
474	* iframe whose parent is the desktop shell. Without relaying
475	* those events to the shell, monitor / debug widgets would only
476	* ever see the shell's own errors — the smallest, least-
477	* interesting surface in the whole admin.
478	*
479	* Two listeners and two wrappers land here:
480	*
481	* - `error` + `unhandledrejection` on window → postMessage
482	* `os-iframe-error`. Parent dispatches `HOOKS.
483	* IFRAME_ERROR`.
484	* - `fetch` + `XMLHttpRequest` are wrapped so every completed
485	* request (including failures) posts
486	* `os-iframe-network` with `{ method, url, status,
487	* duration, failed }`. Parent dispatches `HOOKS.
488	* IFRAME_NETWORK_COMPLETED`.
489	*
490	* Privacy: request / response bodies are NEVER captured — only
491	* method, URL, status, duration. Monitor widgets that want the
492	* full payload must ship their own deeper wrapper (at which
493	* point they own the consent conversation).
494	*/
495	try {
496	window.addEventListener( 'error', function ( e ) {
497	try {
498	window.parent.postMessage( {
499	type: 'os-iframe-error',
500	kind: 'error',
501	message: e && e.message ? String( e.message ) : '',
502	filename: e && e.filename ? String( e.filename ) : null,
503	lineno: e && typeof e.lineno === 'number' ? e.lineno : null,
504	colno: e && typeof e.colno === 'number' ? e.colno : null,
505	stack: e && e.error && e.error.stack ? String( e.error.stack ) : null
506	}, window.location.origin );
507	} catch ( _err ) { /* swallow: don't let the relay compound the error */ }
508	} );
509
510	window.addEventListener( 'unhandledrejection', function ( e ) {
511	try {
512	var reason = e && 'reason' in e ? e.reason : null;
513	var message = '';
514	var stack = null;
515	if ( reason instanceof Error ) {
516	message = reason.message;
517	stack = reason.stack \|\| null;
518	} else if ( reason !== null && reason !== undefined ) {
519	try { message = String( reason ); } catch ( _s ) { message = '[unstringifiable]'; }
520	}
521	window.parent.postMessage( {
522	type: 'os-iframe-error',
523	kind: 'unhandledrejection',
524	message: message,
525	filename: null,
526	lineno: null,
527	colno: null,
528	stack: stack
529	}, window.location.origin );
530	} catch ( _err ) { /* swallow */ }
531	} );
532
533	// Devtools instrumentation slot — populated by
534	// `os-instrument-set` messages from the parent shell.
535	// Mutable: parent overwrites the whole object on every change
536	// (header add/remove, observe toggle).
537	//
538	// Headers: { name: 'value' } — already pre-merged by the parent
539	// (RFC 7230 §3.2.2 join applied there).
540	// Observe: when true, network reports include request +
541	// response headers; otherwise only the privacy-conscious
542	// summary travels parent-bound.
543	window.__wpdInstrument = window.__wpdInstrument \|\| { headers: {}, observe: false };
544	try {
545	window.addEventListener( 'message', function ( ev ) {
546	if ( ev.origin !== window.location.origin \|\| ev.source !== window.parent ) {
547	return;
548	}
549	var d = ev && ev.data;
550	if ( ! d \|\| typeof d !== 'object' \|\| d.type !== 'os-instrument-set' ) {
551	return;
552	}
553	window.__wpdInstrument = {
554	headers: d.headers && typeof d.headers === 'object' ? d.headers : {},
555	observe: !! d.observe
556	};
557	} );
558	} catch ( _err ) { /* swallow — instrumentation is best-effort */ }
559
560	var osReportNetwork = function ( method, url, status, duration, failed, extra ) {
561	try {
562	var msg = {
563	type: 'os-iframe-network',
564	method: String( method \|\| 'GET' ).toUpperCase(),
565	url: String( url \|\| '' ),
566	status: typeof status === 'number' ? status : 0,
567	duration: typeof duration === 'number' ? duration : 0,
568	failed: !! failed
569	};
570	if ( extra && window.__wpdInstrument && window.__wpdInstrument.observe ) {
571	if ( extra.requestHeaders ) {
572	msg.requestHeaders = extra.requestHeaders;
573	}
574	if ( extra.responseHeaders ) {
575	msg.responseHeaders = extra.responseHeaders;
576	}
577	}
578	window.parent.postMessage( msg, window.location.origin );
579	} catch ( _err ) { /* swallow */ }
580	};
581
582	// Helper — when an admin-side request returns 401/403 the
583	// session is most likely toast. Don't wait up to 60s for the
584	// next heartbeat tick to surface core's auth-check modal —
585	// force an immediate tick. `wp.heartbeat.connectNow()` is
586	// safe to call repeatedly; we still debounce to avoid storms
587	// when many requests fail at once. Same-origin gate keeps us
588	// out of third-party 403s. The URL gate avoids looping on
589	// heartbeat itself (heartbeat shouldn't 403 — but if it does
590	// the recursive connectNow would not help anyway).
591	var osAuthCheckCooldownUntil = 0;
592	var osMaybeForceAuthCheck = function ( status, url ) {
593	if ( status !== 401 && status !== 403 ) {
594	return;
595	}
596	var urlStr = String( url \|\| '' );
597	if ( ! urlStr ) {
598	return;
599	}
600	// Cross-origin URLs aren't ours to interpret.
601	try {
602	var resolved = new URL( urlStr, window.location.href );
603	if ( resolved.origin !== window.location.origin ) {
604	return;
605	}
606	// Skip heartbeat to avoid recursion. Skip wp-login
607	// because the login iframe itself returns 4xx during
608	// the auth handshake and we don't want to retrigger.
609	if (
610	resolved.pathname.indexOf( '/wp-admin/admin-ajax.php' ) !== -1
611	&& /(?:^\|&\|\?)action=heartbeat(?:&\|$)/.test( resolved.search )
612	) {
613	return;
614	}
615	if ( resolved.pathname.indexOf( '/wp-login.php' ) !== -1 ) {
616	return;
617	}
618	} catch ( _err ) {
619	return;
620	}
621	var now = Date.now();
622	if ( now < osAuthCheckCooldownUntil ) {
623	return;
624	}
625	osAuthCheckCooldownUntil = now + 5000;
626	try {
627	if (
628	window.wp
629	&& window.wp.heartbeat
630	&& typeof window.wp.heartbeat.connectNow === 'function'
631	) {
632	window.wp.heartbeat.connectNow();
633	}
634	} catch ( _err ) { /* swallow */ }
635	};
636
637	// Helper — convert an arbitrary `init.headers` shape into a
638	// plain `{ name: value }` map so the instrument layer can
639	// merge contributed headers without caring whether the caller
640	// passed a Headers, an array of pairs, or a plain object.
641	var osHeadersToObject = function ( h ) {
642	var out = {};
643	if ( ! h ) {
644	return out;
645	}
646	if ( typeof Headers !== 'undefined' && h instanceof Headers ) {
647	try {
648	h.forEach( function ( v, k ) { out[ k ] = v; } );
649	} catch ( _e ) { /* swallow */ }
650	return out;
651	}
652	if ( Array.isArray( h ) ) {
653	for ( var i = 0; i < h.length; i++ ) {
654	if ( h[ i ] && h[ i ].length >= 2 ) {
655	out[ h[ i ][ 0 ] ] = h[ i ][ 1 ];
656	}
657	}
658	return out;
659	}
660	if ( typeof h === 'object' ) {
661	for ( var k in h ) {
662	if ( Object.prototype.hasOwnProperty.call( h, k ) ) {
663	out[ k ] = h[ k ];
664	}
665	}
666	}
667	return out;
668	};
669
670	// Helper — snapshot the contributed-header set at request time.
671	// Header values can theoretically come and go between requests
672	// (parent ref-counts contributions) so we read fresh on every
673	// call rather than caching at wrap time.
674	var osContributedHeaders = function () {
675	var inst = window.__wpdInstrument \|\| {};
676	var headers = inst.headers \|\| {};
677	var out = {};
678	for ( var k in headers ) {
679	if ( Object.prototype.hasOwnProperty.call( headers, k ) && typeof headers[ k ] === 'string' ) {
680	out[ k ] = headers[ k ];
681	}
682	}
683	return out;
684	};
685
686	// Wrap fetch. Called AFTER `admin_footer` runs — plugin code
687	// using fetch during synchronous page boot (rare in wp-admin)
688	// bypasses this, but lazy calls (the common case) are captured.
689	//
690	// Two layers of behavior:
691	//
692	// - Always: timing + status reporting (the original
693	// observability contract).
694	// - When `__wpdInstrument.headers` is non-empty: merge those
695	// headers into the request before dispatch so devtools can
696	// tag every outgoing call without each plugin reinventing
697	// a fetch wrapper.
698	// - When `__wpdInstrument.observe`: also relay request +
699	// response headers in the parent-bound network message.
700	if ( typeof window.fetch === 'function' ) {
701	var osOrigFetch = window.fetch;
702	window.fetch = function ( input, init ) {
703	var start = ( typeof performance !== 'undefined' && performance.now )
704	? performance.now()
705	: Date.now();
706	var method = 'GET';
707	var url = '';
708	if ( typeof input === 'string' ) {
709	url = input;
710	if ( init && typeof init.method === 'string' ) {
711	method = init.method;
712	}
713	} else if ( input && typeof input === 'object' ) {
714	url = input.url \|\| '';
715	method = ( input.method \|\| ( init && init.method ) \|\| 'GET' );
716	}
717
718	// Header contribution + capture. Build a single
719	// `Headers` instance so contributed values overwrite /
720	// stack predictably regardless of the caller's input
721	// shape, then re-attach to a cloned init.
722	var contributed = osContributedHeaders();
723	var observe = window.__wpdInstrument && window.__wpdInstrument.observe;
724	var requestHeaders = null;
725	var hasContributed = false;
726	for ( var ck in contributed ) {
727	if ( Object.prototype.hasOwnProperty.call( contributed, ck ) ) {
728	hasContributed = true;
729	break;
730	}
731	}
732	if ( hasContributed \|\| observe ) {
733	var existing = osHeadersToObject( init && init.headers );
734	if ( input && typeof input === 'object' && input.headers ) {
735	var fromReq = osHeadersToObject( input.headers );
736	for ( var rk in fromReq ) {
737	if ( Object.prototype.hasOwnProperty.call( fromReq, rk ) && ! ( rk in existing ) ) {
738	existing[ rk ] = fromReq[ rk ];
739	}
740	}
741	}
742	for ( var ck2 in contributed ) {
743	if ( Object.prototype.hasOwnProperty.call( contributed, ck2 ) ) {
744	existing[ ck2 ] = contributed[ ck2 ];
745	}
746	}
747	if ( hasContributed ) {
748	init = init ? Object.assign( {}, init ) : {};
749	init.headers = existing;
750	arguments[ 1 ] = init;
751	}
752	if ( observe ) {
753	requestHeaders = existing;
754	}
755	}
756
757	var promise;
758	try {
759	promise = osOrigFetch.apply( this, arguments );
760	} catch ( sync ) {
761	osReportNetwork( method, url, 0, 0, true, requestHeaders ? { requestHeaders: requestHeaders } : null );
762	throw sync;
763	}
764	return promise.then(
765	function ( res ) {
766	var dur = ( ( typeof performance !== 'undefined' && performance.now )
767	? performance.now()
768	: Date.now() ) - start;
769	var extra = null;
770	if ( requestHeaders ) {
771	extra = { requestHeaders: requestHeaders };
772	try {
773	var rh = {};
774	if ( res && res.headers && typeof res.headers.forEach === 'function' ) {
775	res.headers.forEach( function ( v, k ) { rh[ k ] = v; } );
776	}
777	extra.responseHeaders = rh;
778	} catch ( _hErr ) { /* swallow */ }
779	}
780	osReportNetwork( method, url, res.status, Math.round( dur ), ! res.ok, extra );
781	osMaybeForceAuthCheck( res.status, url );
782	return res;
783	},
784	function ( err ) {
785	var dur = ( ( typeof performance !== 'undefined' && performance.now )
786	? performance.now()
787	: Date.now() ) - start;
788	osReportNetwork( method, url, 0, Math.round( dur ), true, requestHeaders ? { requestHeaders: requestHeaders } : null );
789	throw err;
790	}
791	);
792	};
793	}
794
795	// Wrap XHR — admin-ajax runs through jQuery which runs through
796	// XHR, so fetch-only instrumentation would miss most of the
797	// legacy admin surface. Record method + URL on open; fire on
798	// loadend regardless of success / failure.
799	//
800	// Header contribution layer: `setRequestHeader` after open() but
801	// before send() — that's the only window the spec allows. The
802	// caller's own headers are tracked so observation can include
803	// them alongside the contributed ones.
804	if ( typeof XMLHttpRequest !== 'undefined' ) {
805	var osOrigOpen = XMLHttpRequest.prototype.open;
806	var osOrigSend = XMLHttpRequest.prototype.send;
807	var osOrigSetHeader = XMLHttpRequest.prototype.setRequestHeader;
808	XMLHttpRequest.prototype.open = function ( method, url ) {
809	try {
810	this.__wpdMethod = method;
811	this.__wpdUrl = url;
812	this.__wpdReqHeaders = {};
813	} catch ( _err ) { /* frozen instance — skip */ }
814	return osOrigOpen.apply( this, arguments );
815	};
816	XMLHttpRequest.prototype.setRequestHeader = function ( name, value ) {
817	try {
818	if ( ! this.__wpdReqHeaders ) {
819	this.__wpdReqHeaders = {};
820	}
821	this.__wpdReqHeaders[ name ] = value;
822	} catch ( _err ) { /* swallow */ }
823	return osOrigSetHeader.apply( this, arguments );
824	};
825	XMLHttpRequest.prototype.send = function () {
826	var xhr = this;
827	var start = ( typeof performance !== 'undefined' && performance.now )
828	? performance.now()
829	: Date.now();
830
831	// Apply contributed headers right before send. Doing it
832	// here rather than in open() means contributions added
833	// after open() (e.g. in async-built request flows) still
834	// land on the wire.
835	var contributed = osContributedHeaders();
836	var observe = window.__wpdInstrument && window.__wpdInstrument.observe;
837	for ( var hk in contributed ) {
838	if ( Object.prototype.hasOwnProperty.call( contributed, hk ) ) {
839	try {
840	osOrigSetHeader.call( xhr, hk, contributed[ hk ] );
841	if ( ! xhr.__wpdReqHeaders ) {
842	xhr.__wpdReqHeaders = {};
843	}
844	xhr.__wpdReqHeaders[ hk ] = contributed[ hk ];
845	} catch ( _hErr ) { /* `setRequestHeader` rejects forbidden names — skip */ }
846	}
847	}
848
849	var fire = function () {
850	var dur = ( ( typeof performance !== 'undefined' && performance.now )
851	? performance.now()
852	: Date.now() ) - start;
853	var extra = null;
854	if ( observe ) {
855	extra = {
856	requestHeaders: xhr.__wpdReqHeaders \|\| {}
857	};
858	try {
859	var raw = xhr.getAllResponseHeaders ? xhr.getAllResponseHeaders() : '';
860	var resHeaders = {};
861	if ( raw && typeof raw === 'string' ) {
862	var lines = raw.trim().split( /[\r\n]+/ );
863	for ( var li = 0; li < lines.length; li++ ) {
864	var idx = lines[ li ].indexOf( ':' );
865	if ( idx > 0 ) {
866	resHeaders[ lines[ li ].slice( 0, idx ).trim() ] = lines[ li ].slice( idx + 1 ).trim();
867	}
868	}
869	}
870	extra.responseHeaders = resHeaders;
871	} catch ( _rErr ) { /* swallow */ }
872	}
873	osReportNetwork(
874	xhr.__wpdMethod,
875	xhr.__wpdUrl,
876	xhr.status,
877	Math.round( dur ),
878	xhr.status === 0 \|\| xhr.status >= 400,
879	extra
880	);
881	osMaybeForceAuthCheck( xhr.status, xhr.__wpdUrl );
882	};
883	try {
884	xhr.addEventListener( 'loadend', fire );
885	} catch ( _err ) { /* swallow */ }
886	return osOrigSend.apply( this, arguments );
887	};
888	}
889
890	// Wrap sendBeacon — used by analytics + telemetry. The Beacon
891	// API doesn't accept headers (the entire point of beacons is
892	// minimal payload + best-effort delivery). When devtools have
893	// contributed headers we silently fall back to fetch with
894	// `keepalive: true`, which is the closest semantic match —
895	// guaranteed POST + same fire-and-forget intent + custom headers
896	// allowed. Without contributions we just relay the call.
897	if ( typeof navigator !== 'undefined' && typeof navigator.sendBeacon === 'function' ) {
898	var osOrigBeacon = navigator.sendBeacon.bind( navigator );
899	navigator.sendBeacon = function ( url, data ) {
900	var contributed = osContributedHeaders();
901	var hasContributed = false;
902	for ( var ck in contributed ) {
903	if ( Object.prototype.hasOwnProperty.call( contributed, ck ) ) {
904	hasContributed = true;
905	break;
906	}
907	}
908	var start = ( typeof performance !== 'undefined' && performance.now )
909	? performance.now()
910	: Date.now();
911	if ( ! hasContributed ) {
912	var ok = false;
913	try { ok = !! osOrigBeacon( url, data ); } catch ( _e ) { ok = false; }
914	osReportNetwork( 'POST', url, ok ? 200 : 0, 0, ! ok );
915	return ok;
916	}
917	try {
918	var observe = window.__wpdInstrument && window.__wpdInstrument.observe;
919	var headers = {};
920	for ( var hk2 in contributed ) {
921	if ( Object.prototype.hasOwnProperty.call( contributed, hk2 ) ) {
922	headers[ hk2 ] = contributed[ hk2 ];
923	}
924	}
925	window.fetch( url, {
926	method: 'POST',
927	body: data,
928	keepalive: true,
929	credentials: 'same-origin',
930	headers: headers
931	} ).then(
932	function ( res ) {
933	var dur = ( ( typeof performance !== 'undefined' && performance.now )
934	? performance.now()
935	: Date.now() ) - start;
936	osReportNetwork( 'POST', url, res.status, Math.round( dur ), ! res.ok, observe ? { requestHeaders: headers } : null );
937	},
938	function () {
939	var dur = ( ( typeof performance !== 'undefined' && performance.now )
940	? performance.now()
941	: Date.now() ) - start;
942	osReportNetwork( 'POST', url, 0, Math.round( dur ), true, observe ? { requestHeaders: headers } : null );
943	}
944	);
945	return true;
946	} catch ( _bErr ) {
947	return false;
948	}
949	};
950	}
951	} catch ( _err ) {
952	/* Whole observability block is best-effort. If something in
953	* the environment disagrees (frozen prototypes, CSP blocking
954	* postMessage, etc.) we don't want to tank the rest of the
955	* chromeless bridge. */
956	}
957
958	/*
959	* Menu-changed signal.
960	*
961	* The shell's dock is built from `$menu` at page-load time and
962	* then frozen — the iframe reload that follows plugin
963	* activation / deactivation / installation doesn't tell the
964	* parent the admin menu just mutated. This handler fires inside
965	* the iframe that JUST LOADED plugins.php (or a sibling menu-
966	* affecting page) and hands the parent a fresh payload the PHP
967	* side built server-side from the live $menu globals.
968	*
969	* Why not a REST roundtrip: plugins commonly gate their
970	* `admin_menu` registration on `is_admin()` evaluated AT PLUGIN
971	* LOAD. REST requests don't define `WP_ADMIN` at plugin-load
972	* time, so those plugins never register and a REST-context
973	* bootstrap can't retroactively make them. By capturing the
974	* payload here, inside a real admin context, we get the
975	* authoritative post-activation state that any REST endpoint
976	* would miss.
977	*
978	* Covered pages:
979	* - plugins.php — activate, deactivate, bulk, delete.
980	* - plugin-install.php — install new, install-and-activate.
981	* - update.php — update / install handler (install-
982	* plugin + upload-plugin actions).
983	* - themes.php — theme switch (rare but can add menus).
984	*/
985	var __OPENSTATION_MENU_PAYLOAD__ = /__OPENSTATION_MENU_PAYLOAD__/;
986	var __OPENSTATION_MENU_SIG__ = /__OPENSTATION_MENU_SIG__/;
987	/*
988	* Icon harvest from the iframe's authoritative #adminmenu.
989	*
990	* The server-side payload only knows what the plugin set on
991	* $menu[$i][6]. Plugins that register their icon with 'none' /
992	* 'div' and paint it via a CSS rule on `#adminmenu .menu-icon-X`
993	* (All in One WP Migration, plus a long tail of older plugins)
994	* end up serialized with the gear fallback.
995	*
996	* On a regular page load the parent shell's resolveIcon() falls
997	* back to the parent's hidden #adminmenu DOM and reads the icon
998	* from there — but on a live activation the parent's #adminmenu
999	* is stale (it was rendered before the plugin existed). This
1000	* iframe just rendered plugins.php in real admin context, so its
1001	* own #adminmenu DOM IS authoritative; harvest each menu item's
1002	* resolved icon here and patch the dockItems before postMessage.
1003	*/
1004	try {
1005	if (
1006	__OPENSTATION_MENU_PAYLOAD__
1007	&& Array.isArray( __OPENSTATION_MENU_PAYLOAD__.dockItems )
1008	) {
1009	var __wpdAdminMenu = document.getElementById( 'adminmenu' );
1010	if ( __wpdAdminMenu ) {
1011	var __wpdHarvest = {};
1012	var __wpdLinks = __wpdAdminMenu.querySelectorAll( 'li.menu-top > a' );
1013	for ( var __wpdLi = 0; __wpdLi < __wpdLinks.length; __wpdLi++ ) {
1014	var __wpdLink = __wpdLinks[ __wpdLi ];
1015	var __wpdKey;
1016	try {
1017	var __wpdU = new URL( __wpdLink.href \|\| '', window.location.href );
1018	__wpdKey = ( __wpdU.pathname.split( '/' ).pop() \|\| '' ) + __wpdU.search;
1019	} catch ( __wpdE1 ) { continue; }
1020	if ( ! __wpdKey ) { continue; }
1021	var __wpdImgWrap = __wpdLink.querySelector( '.wp-menu-image' );
1022	if ( ! __wpdImgWrap ) { continue; }
1023
1024	/* (a) <img src> nested inside .wp-menu-image */
1025	var __wpdImg = __wpdImgWrap.querySelector( 'img' );
1026	if ( __wpdImg && __wpdImg.src ) {
1027	__wpdHarvest[ __wpdKey ] = __wpdImg.src;
1028	continue;
1029	}
1030
1031	/* (b) dashicon class on the wrap div itself */
1032	var __wpdDash = ( __wpdImgWrap.className \|\| '' ).match( /\bdashicons-[\w-]+\b/ );
1033	if (
1034	__wpdDash
1035	&& __wpdDash[ 0 ] !== 'dashicons-before'
1036	&& __wpdDash[ 0 ] !== 'dashicons-admin-generic'
1037	) {
1038	__wpdHarvest[ __wpdKey ] = __wpdDash[ 0 ];
1039	continue;
1040	}
1041
1042	/* (c) ::before background-image — pass the raw
1043	* `url(...)` CSS value through; the parent's
1044	* resolveIcon can hand it straight to _makeSvgIcon
1045	* regardless of whether it's base64-encoded SVG,
1046	* URL-encoded SVG, or a plain http(s) URL. */
1047	try {
1048	var __wpdBefore = window.getComputedStyle( __wpdImgWrap, '::before' );
1049	var __wpdBg = __wpdBefore && __wpdBefore.backgroundImage;
1050	if ( __wpdBg && __wpdBg !== 'none' && __wpdBg.indexOf( 'url("")' ) === -1 ) {
1051	__wpdHarvest[ __wpdKey ] = __wpdBg;
1052	continue;
1053	}
1054	/* (d) background on the wrap itself */
1055	var __wpdWrapBg = window.getComputedStyle( __wpdImgWrap ).backgroundImage;
1056	if ( __wpdWrapBg && __wpdWrapBg !== 'none' && __wpdWrapBg.indexOf( 'url("")' ) === -1 ) {
1057	__wpdHarvest[ __wpdKey ] = __wpdWrapBg;
1058	}
1059	} catch ( __wpdE2 ) { /* getComputedStyle may throw on detached nodes */ }
1060	}
1061
1062	var __wpdItems = __OPENSTATION_MENU_PAYLOAD__.dockItems;
1063	for ( var __wpdDi = 0; __wpdDi < __wpdItems.length; __wpdDi++ ) {
1064	var __wpdItem = __wpdItems[ __wpdDi ];
1065	if ( ! __wpdItem \|\| __wpdItem.icon !== 'dashicons-admin-generic' ) { continue; }
1066	if ( typeof __wpdItem.url !== 'string' \|\| ! __wpdItem.url ) { continue; }
1067	try {
1068	var __wpdItemU = new URL( __wpdItem.url, window.location.href );
1069	var __wpdItemKey = ( __wpdItemU.pathname.split( '/' ).pop() \|\| '' ) + __wpdItemU.search;
1070	if ( __wpdHarvest[ __wpdItemKey ] ) {
1071	__wpdItem.icon = __wpdHarvest[ __wpdItemKey ];
1072	}
1073	} catch ( __wpdE3 ) { /* malformed url — leave icon alone */ }
1074	}
1075	}
1076	}
1077	} catch ( __wpdHarvestErr ) {
1078	/* Harvest is best-effort; on any failure we still ship the
1079	* server-built payload, which is exactly the pre-fix behavior. */
1080	}
1081	/*
1082	* Menu payload / signature target: the SHELL, i.e. the top window —
1083	* not the immediate parent. For a normal window iframe the two are
1084	* the same frame, but the bulk updater nests: update-core.php (the
1085	* window iframe) hosts a progress iframe of `update.php?action=
1086	* update-selected`, whose `iframe_footer()` fires `admin_footer`
1087	* AFTER the upgrades ran — exactly the fresh payload the shell
1088	* wants. Posting that to `window.parent` hands it to the
1089	* update-core.php page, which has no listener, and the dock badge
1090	* stays stale (GH#296). `window.top` reaches the shell from any
1091	* nesting depth; the targetOrigin pin means a cross-origin top
1092	* (foreign page iframing wp-admin) simply never receives it.
1093	*/
1094	try {
1095	var __wpdShell = window.top \|\| window.parent;
1096	if ( __OPENSTATION_MENU_PAYLOAD__ ) {
1097	__wpdShell.postMessage(
1098	{
1099	type: 'os-plugins-changed',
1100	payload: __OPENSTATION_MENU_PAYLOAD__
1101	},
1102	window.location.origin
1103	);
1104	} else if ( __OPENSTATION_MENU_SIG__ ) {
1105	/*
1106	* No full payload on this page — but we still ship the cheap
1107	* menu signature so the shell can notice a menu change that
1108	* happened somewhere off the plugins/themes/update path (a
1109	* CPT registered via a settings tool, a plugin that adds a
1110	* menu on save, …) and spend a refresh probe only then.
1111	* GH#325.
1112	*/
1113	__wpdShell.postMessage(
1114	{
1115	type: 'os-menu-signature',
1116	sig: __OPENSTATION_MENU_SIG__
1117	},
1118	window.location.origin
1119	);
1120	}
1121	} catch ( err ) {
1122	/* postMessage throws only on structured-clone failures, which
1123	* this static payload won't hit. Swallow defensively so a
1124	* wayward extension wrapping window.parent can't break the
1125	* rest of the bridge. */
1126	}
1127
1128	/*
1129	* Link & form interceptor.
1130	*
1131	* Every same-origin wp-admin <a> href and <form> action gets the
1132	* `openstation_chromeless=1` flag appended so navigation inside the iframe stays
1133	* chromeless. Without this, a stray link to /wp-admin/edit.php (see
1134	* Gutenberg's fullscreen close button, help-tab links, "Return to
1135	* posts" affordances, etc.) re-renders the full classic admin inside
1136	* our window.
1137	*
1138	* Excluded from rewriting:
1139	* - modifier clicks (cmd/ctrl/shift/alt) — user wants to open a
1140	* new tab/window, respect that
1141	* - target="_blank" / target="_top" / target="_parent"
1142	* - download attribute
1143	* - in-page anchors (#)
1144	* - mailto:, tel:, javascript: schemes
1145	* - cross-origin URLs
1146	* - URLs that already carry openstation_chromeless=
1147	*/
1148	function rewriteAdminUrl( href, base ) {
1149	if ( ! href \|\| href.charAt( 0 ) === '#' ) {
1150	return null;
1151	}
1152	if ( /^(mailto:\|tel:\|javascript:\|data:)/i.test( href ) ) {
1153	return null;
1154	}
1155	var url;
1156	try {
1157	url = new URL( href, base );
1158	} catch ( err ) {
1159	return null;
1160	}
1161	if ( url.origin !== window.location.origin ) {
1162	return null;
1163	}
1164	if ( url.pathname.indexOf( '/wp-admin/' ) === -1 ) {
1165	return null;
1166	}
1167	if ( url.searchParams.has( 'openstation_chromeless' ) ) {
1168	return null;
1169	}
1170	url.searchParams.set( 'openstation_chromeless', '1' );
1171	return url.toString();
1172	}
1173
1174	/*
1175	* Classify a link so we know whether to rewrite it (admin),
1176	* escalate it to the parent shell (external / non-admin), or let
1177	* the browser navigate naturally (mailto, anchor, download, etc.).
1178	*
1179	* 'admin' — same-origin /wp-admin/ URL we rewrite in place.
1180	* 'external' — http(s) URL we want the parent shell to open
1181	* as a sub-tab instead of navigating the iframe
1182	* out of wp-admin. Covers both cross-origin
1183	* links (plugin author sites, external docs) AND
1184	* same-origin non-admin links (the site's own
1185	* front-end pages).
1186	* 'passthrough' — anything else (mailto, tel, javascript, data,
1187	* anchors, unparseable). The browser handles it.
1188	*/
1189	function classifyLink( href, base ) {
1190	if ( ! href \|\| href.charAt( 0 ) === '#' ) {
1191	return 'passthrough';
1192	}
1193	if ( /^(mailto:\|tel:\|javascript:\|data:)/i.test( href ) ) {
1194	return 'passthrough';
1195	}
1196	var url;
1197	try {
1198	url = new URL( href, base );
1199	} catch ( err ) {
1200	return 'passthrough';
1201	}
1202	if ( url.protocol !== 'http:' && url.protocol !== 'https:' ) {
1203	return 'passthrough';
1204	}
1205	if (
1206	url.origin === window.location.origin &&
1207	url.pathname.indexOf( '/wp-admin/' ) !== -1
1208	) {
1209	return 'admin';
1210	}
1211	return 'external';
1212	}
1213
1214	/*
1215	* Rewrite a link's href to carry `_wp_http_referer=<this page>`.
1216	*
1217	* The iframe-side twin of `stampSourceReferer()` in
1218	* `src/window/iframe-bridge.ts`, for links the interceptor yields
1219	* on: the parent never sees the click, so it can't stamp them.
1220	* `wp_get_referer()` reads `$_REQUEST['_wp_http_referer']` ahead
1221	* of the raw header, so the param survives any `Referrer-Policy`.
1222	*
1223	* Same three guards as the parent, for the same reasons: never
1224	* overwrite a referer the markup already supplied, stay
1225	* same-origin (a mis-attributed referer is worse than none), and
1226	* strip the chromeless flag from the hint so it doesn't loop into
1227	* whatever redirect WP builds out of it.
1228	*/
1229	function stampSourceRefererOnLink( link ) {
1230	try {
1231	var target = new URL( link.getAttribute( 'href' ), window.location.href );
1232	if ( target.origin !== window.location.origin ) {
1233	return;
1234	}
1235	if ( target.searchParams.has( '_wp_http_referer' ) ) {
1236	return;
1237	}
1238	var source = new URL( window.location.href );
1239	source.searchParams.delete( 'openstation_chromeless' );
1240	target.searchParams.set(
1241	'_wp_http_referer',
1242	source.pathname + ( source.search ? source.search : '' )
1243	);
1244	link.setAttribute( 'href', target.toString() );
1245	} catch ( err ) {
1246	/* Unparseable href, so leave the link exactly as it was. */
1247	}
1248	}
1249
1250	/*
1251	* The text a link actually SHOWS, for use as a window title.
1252	*
1253	* `textContent` is the wrong source on its own. WP Core routinely
1254	* pairs a terse visible label with a longer screen-reader one
1255	* inside the same anchor, and reads back as both at once. Drop the
1256	* screen-reader half (`.screen-reader-text` is Core's own class for
1257	* it, `.hidden` covers the markup that toggles) and collapse the
1258	* indentation whitespace the templates leave behind.
1259	*
1260	* The parent treats a label harvested this way as provisional and
1261	* upgrades it to the destination page's own title once the iframe
1262	* loads — see `titleFromPage` in `src/types.ts`.
1263	*/
1264	/*
1265	* The wp-admin filename a URL points at (`revision.php`), or an
1266	* empty string when it can't be read. Used to tell "a different
1267	* admin screen" from "another view of this one" without needing
1268	* the shell's window-slug rules.
1269	*/
1270	function adminFileOf( url ) {
1271	try {
1272	return new URL( url, window.location.href ).pathname.split( '/' ).pop();
1273	} catch ( err ) {
1274	return '';
1275	}
1276	}
1277
1278	function visibleLinkText( link ) {
1279	var clone = link.cloneNode( true );
1280	var muted = clone.querySelectorAll( '.screen-reader-text, .hidden' );
1281	for ( var i = 0; i < muted.length; i++ ) {
1282	if ( muted[ i ].parentNode ) {
1283	muted[ i ].parentNode.removeChild( muted[ i ] );
1284	}
1285	}
1286	return ( clone.textContent \|\| '' ).replace( /\s+/g, ' ' ).trim();
1287	}
1288
1289	document.addEventListener( 'click', function ( e ) {
1290	if ( e.defaultPrevented ) {
1291	return;
1292	}
1293	if ( e.button !== 0 \|\| e.metaKey \|\| e.ctrlKey \|\| e.shiftKey \|\| e.altKey ) {
1294	return;
1295	}
1296	var link = e.target && e.target.closest ? e.target.closest( 'a[href]' ) : null;
1297	if ( ! link ) {
1298	return;
1299	}
1300	/*
1301	* A link that names another browsing context.
1302	*
1303	* `_blank` on a /wp-admin/ URL means "open this admin screen
1304	* without losing the one I am on", and inside the shell that
1305	* is another window rather than a browser tab that drops the
1306	* user out of the desktop. Claimed only when the destination
1307	* is a DIFFERENT wp-admin file: whether two URLs on one file
1308	* are the same "page" depends on the shell's window-slug
1309	* rules, which the iframe can't see, and guessing wrong makes
1310	* the parent navigate the window the link was clicked in.
1311	*
1312	* Every other target yields. `_top` / `_parent` are a
1313	* deliberate "replace the whole shell" and a page's only
1314	* escape hatch; a named target (`wp-preview-4`) reuses one
1315	* specific tab across clicks, which a window cannot honour;
1316	* and any target on a non-admin URL has no window to open
1317	* into.
1318	*/
1319	var newContext = false;
1320	var linkTarget = link.target \|\| '';
1321	if ( linkTarget !== '' && linkTarget !== '_self' ) {
1322	var claimable =
1323	linkTarget === '_blank' &&
1324	classifyLink( link.getAttribute( 'href' ), window.location.href ) === 'admin' &&
1325	adminFileOf( link.getAttribute( 'href' ) ) !== '' &&
1326	adminFileOf( link.getAttribute( 'href' ) ) !== adminFileOf( window.location.href );
1327	if ( ! claimable ) {
1328	return;
1329	}
1330	newContext = true;
1331	}
1332	if ( link.hasAttribute( 'download' ) ) {
1333	return;
1334	}
1335	/*
1336	* Activity-footprint launcher. A "View activity footprint" row
1337	* action (added to the Users list table by
1338	* `openstation_user_footprint_row_action`) carries the target
1339	* user id in `data-os-footprint`. The iframe has no
1340	* shell API of its own, so we escalate the click to the parent
1341	* shell, which opens the My WordPress window on that user's
1342	* footprint. Checked BEFORE classifyLink so the link's real
1343	* href — a graceful profile-edit fallback for no-JS — is never
1344	* followed inside the shell. Modifier-key / middle clicks are
1345	* already filtered above, so cmd/ctrl-click still opens that
1346	* fallback in a new browser tab.
1347	*/
1348	var footprintAttr = link.getAttribute( 'data-os-footprint' );
1349	if ( footprintAttr ) {
1350	var footprintUid = parseInt( footprintAttr, 10 );
1351	if ( footprintUid > 0 ) {
1352	e.preventDefault();
1353	try {
1354	window.parent.postMessage(
1355	{
1356	type: 'os-open-user-footprint',
1357	userId: footprintUid,
1358	userName: link.getAttribute( 'data-os-footprint-name' ) \|\| ''
1359	},
1360	window.location.origin
1361	);
1362	} catch ( footprintErr ) {
1363	/* Same-origin postMessage can only fail in a sandbox
1364	* we don't support — swallow rather than block the
1365	* click. */
1366	}
1367	return;
1368	}
1369	}
1370	/*
1371	* `aria-button-if-js` is WP core's own marker for "this anchor
1372	* is really an in-page button; the href is only the no-JS
1373	* fallback". Core stamps `role="button"` on every one of them
1374	* (`wp-admin/js/common.js`), and the owning script binds a
1375	* bubble-phase handler that calls preventDefault: media-grid.js
1376	* for the Media Library's uploader toggle, wp-lists for the
1377	* comment row actions, tags.js for term Delete, updates.js
1378	* for the auto-update toggles.
1379	*
1380	* Our capture-phase handler runs first, so hijacking these
1381	* substitutes the fallback URL for the in-page action the user
1382	* actually asked for. On the Media Library grid that showed up as
1383	* two uploaders at once: the shell opened a window for
1384	* `media-new.php` (the fallback) while media-grid.js's
1385	* `addNewClickHandler` still expanded the inline drop zone in the
1386	* Media window behind it, and closing the window left the drop
1387	* zone stranded above the grid.
1388	*
1389	* The class does NOT promise a handler, though. The Media list
1390	* table stamps it on Trash / Restore / Delete Permanently
1391	* (`.submitdelete`, `class-wp-media-list-table.php`) and binds
1392	* nothing: the href really is the navigation. Yielding is still
1393	* right for those (the inline `onclick` confirm runs, and
1394	* cancelling actually cancels, which it did not when we
1395	* preventDefaulted in capture ahead of it), but the parent's
1396	* destructive-action path used to stamp `_wp_http_referer` on
1397	* them, and a raw navigation loses that. See `stampSourceReferer`
1398	* in `src/window/iframe-bridge.ts` for the full rationale; the
1399	* short version is that a `Referrer-Policy` of `strict-origin` or
1400	* tighter downgrades the `Referer` header to the bare origin,
1401	* which `post.php` matches against neither `post.php` nor
1402	* `post-new.php`, so `$sendback` stays the origin and the window
1403	* lands on the site front page instead of back on the list.
1404	*
1405	* So stamp the hint ourselves before yielding. In here the
1406	* source page IS `window.location`, which makes this the same
1407	* value the parent would have computed, minus the round trip.
1408	*/
1409	if ( link.classList.contains( 'aria-button-if-js' ) ) {
1410	if ( link.classList.contains( 'submitdelete' ) ) {
1411	stampSourceRefererOnLink( link );
1412	}
1413	return;
1414	}
1415	/*
1416	* Same story as `aria-button-if-js` above, minus the marker
1417	* class: `plugin-install.php`'s "Upload Plugin" href is a
1418	* no-JS fallback, and plugin-install.js binds a bubble-phase
1419	* handler that opens the drop zone in place above the plugin
1420	* cards. Our capture handler used to win and navigate to
1421	* `?tab=upload`, which shows the uploader with no cards.
1422	*
1423	* On that page core skips the binding on purpose ("let the
1424	* link behave like a link"), flagged by
1425	* `plugin-install-tab-upload` on the wrap. There the href is
1426	* the real navigation, so we route it as usual.
1427	*
1428	* `theme-install.php`'s Upload Theme is a `<button>`, so it
1429	* never reaches this handler.
1430	*/
1431	if ( link.classList.contains( 'upload-view-toggle' ) ) {
1432	var uploadWrap = link.closest( '.wrap' );
1433	if (
1434	! uploadWrap \|\|
1435	! uploadWrap.classList.contains( 'plugin-install-tab-upload' )
1436	) {
1437	return;
1438	}
1439	}
1440	/*
1441	* WordPress core's wp-admin/js/updates.js owns the click on these
1442	* AJAX-driven plugin/theme management buttons — it binds in bubble
1443	* phase and calls preventDefault to take over with an in-place
1444	* AJAX install / update / delete (with its own progress spinner
1445	* and inline success/failure UX). Our capture-phase handler would
1446	* preempt it: preventDefault here fires BEFORE updates.js's own,
1447	* the AJAX call never starts, and the postMessage below diverts
1448	* the user to the link's no-JS fallback URL (update.php?action=
1449	* install-plugin&...) opened as a freshly spawned desktop window.
1450	* That fallback technically completes the install server-side,
1451	* but it's a long blocking page-load with no in-place feedback —
1452	* which is what users perceive as "Install Now keeps loading and
1453	* opens a new tab". Skip these classes so updates.js's bubble
1454	* handler runs as core intended.
1455	*
1456	* The plugins-list-table row action "Delete" is the same story
1457	* with a different marker: a bare `a.delete` inside a
1458	* `tr[data-plugin]` (updates.js binds `[data-plugin] a.delete`;
1459	* the network themes list is `.themes-php.network-admin
1460	* a.delete`) — it never carries the `delete-plugin` /
1461	* `delete-theme` classes of the card-style buttons above.
1462	* Hijacking it navigated the iframe to the link's no-JS
1463	* bulk-delete fallback WHILE updates.js's AJAX delete was
1464	* already running: `wp.updates.beforeunload` raised a native
1465	* "Leave site?" prompt, and leaving landed on a delete
1466	* confirmation screen for a plugin whose files the AJAX call
1467	* had just removed — an empty "You are about to remove:" list.
1468	*/
1469	if (
1470	link.classList.contains( 'install-now' ) \|\|
1471	link.classList.contains( 'update-link' ) \|\|
1472	link.classList.contains( 'update-now' ) \|\|
1473	link.classList.contains( 'delete-plugin' ) \|\|
1474	link.classList.contains( 'delete-theme' ) \|\|
1475	link.classList.contains( 'install-theme' ) \|\|
1476	( link.classList.contains( 'delete' ) &&
1477	( link.closest( '[data-plugin]' ) \|\|
1478	( document.body.classList.contains( 'themes-php' ) &&
1479	document.body.classList.contains( 'network-admin' ) ) ) )
1480	) {
1481	return;
1482	}
1483	var href = link.getAttribute( 'href' );
1484	var kind = classifyLink( href, window.location.href );
1485	if ( kind === 'admin' ) {
1486	var rewritten = rewriteAdminUrl( href, window.location.href );
1487	if ( rewritten ) {
1488	link.setAttribute( 'href', rewritten );
1489	}
1490	/*
1491	* Hand admin-internal navigation to the parent shell.
1492	*
1493	* The parent decides what to do with each click:
1494	*
1495	* - Native-window remap hits (e.g. `edit.php` while the
1496	* user has the native Posts opt-in on) → parent opens
1497	* the native window and closes THIS iframe.
1498	* - Same-page nav (pagination, filtering on the same
1499	* `edit.php?post_type=page` screen, etc.) → parent
1500	* drives the iframe's `location.assign()` so the
1501	* in-place navigation matches the user's intent.
1502	* - Cross-page nav (e.g. clicking "Posts" from inside
1503	* the Pages window) → parent opens a new window for
1504	* the destination and leaves THIS iframe untouched,
1505	* so the user keeps both contexts.
1506	*
1507	* We `preventDefault()` so the iframe never starts a
1508	* navigation the parent might want to suppress; otherwise
1509	* cross-page clicks would trash the source window before
1510	* the parent had a chance to react. Modifier-key clicks
1511	* (cmd/ctrl/shift/alt, middle-click) are already filtered
1512	* upstream so the browser's native "open in new tab" path
1513	* still works.
1514	*/
1515	e.preventDefault();
1516	try {
1517	var absolute = new URL( rewritten \|\| href, window.location.href ).toString();
1518	/*
1519	* Ship the link's visible text along with the URL so
1520	* the parent can title a freshly-opened window with
1521	* something the user recognises ("Scheduler") instead
1522	* of the URL slug ("tools-php-page-scheduler") when
1523	* the destination has no dock tile to copy a title
1524	* from. The iframe itself never auto-emits a
1525	* title-change, so without this hint the slug-as-
1526	* title fallback would persist for the lifetime of
1527	* the new window.
1528	*/
1529	var adminLabel = visibleLinkText( link ) \|\|
1530	link.getAttribute( 'title' ) \|\|
1531	link.getAttribute( 'aria-label' ) \|\|
1532	'';
1533	window.parent.postMessage(
1534	{
1535	type: 'os-iframe-admin-link',
1536	url: absolute,
1537	label: adminLabel.slice( 0, 80 ),
1538	/*
1539	* The link asked for a new browsing context, so
1540	* the parent must give the destination its own
1541	* window rather than driving this one. Without
1542	* the flag it would still be free to pick an
1543	* in-place branch — the destructive-action one
1544	* fires on slug mismatch, which is exactly the
1545	* shape a `_blank` reaches us with.
1546	*/
1547	newContext: newContext
1548	},
1549	window.location.origin
1550	);
1551	} catch ( bridgeErr ) {
1552	/* Same-origin postMessage to the same window can only fail in
1553	* a sandbox we don't support — swallow rather than block the
1554	* click. */
1555	}
1556	return;
1557	}
1558	if ( kind === 'external' ) {
1559	/*
1560	* External navigation inside an admin iframe would leave
1561	* the user stranded in a chrome-free version of whatever
1562	* site the link points at. Escalate to the parent shell
1563	* so it opens the URL as a closeable sub-tab (with a
1564	* detach button) alongside the admin tab — the user
1565	* stays inside the desktop shell.
1566	*
1567	* Resolving the href against the document base gives the
1568	* parent an absolute URL it doesn't have to re-resolve.
1569	*/
1570	e.preventDefault();
1571	var absolute;
1572	try {
1573	absolute = new URL( href, window.location.href ).toString();
1574	} catch ( err ) {
1575	return;
1576	}
1577	var label = visibleLinkText( link ) \|\|
1578	link.getAttribute( 'title' ) \|\|
1579	absolute;
1580	window.parent.postMessage(
1581	{
1582	type: 'os-external-link',
1583	url: absolute,
1584	label: label.slice( 0, 80 )
1585	},
1586	window.location.origin
1587	);
1588	}
1589	}, true );
1590
1591	document.addEventListener( 'submit', function ( e ) {
1592	var form = e.target;
1593	if ( ! form \|\| form.tagName !== 'FORM' ) {
1594	return;
1595	}
1596	var action = form.getAttribute( 'action' );
1597	var rewritten = rewriteAdminUrl( action \|\| window.location.href, window.location.href );
1598	if ( rewritten ) {
1599	form.setAttribute( 'action', rewritten );
1600	}
1601	}, true );
1602
1603	/*
1604	* Focus-request bridge.
1605	*
1606	* Clicks inside an iframe don't cross the browsing-context
1607	* boundary — the parent shell's pointerdown / focusin listeners
1608	* never see them, so without this hook the only way to focus an
1609	* iframe window would be clicking its title bar chrome. Post a
1610	* `os-focus-request` message on every pointerdown; the
1611	* parent Window class treats it as an onFocusRequest. Capture
1612	* phase so the signal fires before any stopPropagation inside
1613	* a page's own handlers.
1614	*/
1615	function postFocusRequest() {
1616	try {
1617	window.parent.postMessage(
1618	{ type: 'os-focus-request' },
1619	window.location.origin
1620	);
1621	} catch ( err ) {
1622	/* cross-origin parent (shouldn't happen for chromeless
1623	* pages, but don't let a throw break the bridge) */
1624	}
1625	}
1626
1627	document.addEventListener( 'pointerdown', postFocusRequest, true );
1628
1629	/*
1630	* Nested-frame focus escalation.
1631	*
1632	* The document-level listener above never hears clicks inside
1633	* NESTED iframes: Gutenberg renders the post canvas in one
1634	* (`editor-canvas`, srcdoc → same-origin), and TinyMCE's visual
1635	* mode uses `#content_ifr`. Without this hook, clicking into the
1636	* canvas of an unfocused editor window is swallowed — only the
1637	* toolbar/sidebar (outer document) would focus the window.
1638	* Attach the same escalation inside every same-origin nested
1639	* frame: on load (each navigation creates a fresh document) and
1640	* as frames mount (Gutenberg creates the canvas asynchronously
1641	* and re-creates it, e.g. on device-preview switches).
1642	*
1643	* The observer walks only each record's `addedNodes` — the same
1644	* shape as the component-sniffer observer at the top of this
1645	* file, and for the same reason. Re-querying the whole document
1646	* per mutation batch would put an O(DOM) tree walk on Gutenberg's
1647	* typing path, which is precisely when the editor mutates hardest
1648	* (and precisely when the editor-preview pairing is live). A
1649	* frame that was never inserted cannot need hooking, so the
1650	* narrow sweep loses nothing. The WeakSets keep it idempotent
1651	* when a subtree is moved rather than created.
1652	*/
1653	var hookedFrameDocs = new WeakSet();
1654	var hookedFrameEls = new WeakSet();
1655
1656	function hookNestedFrameDoc( frame ) {
1657	var doc;
1658	try {
1659	doc = frame.contentDocument;
1660	} catch ( err ) {
1661	return; /* cross-origin frame — unreachable, skip */
1662	}
1663	if ( ! doc \|\| hookedFrameDocs.has( doc ) ) {
1664	return;
1665	}
1666	hookedFrameDocs.add( doc );
1667	doc.addEventListener( 'pointerdown', postFocusRequest, true );
1668	}
1669
1670	function hookNestedFrame( frame ) {
1671	if ( ! hookedFrameEls.has( frame ) ) {
1672	hookedFrameEls.add( frame );
1673	frame.addEventListener( 'load', function ( ev ) {
1674	hookNestedFrameDoc( ev.target );
1675	} );
1676	}
1677	hookNestedFrameDoc( frame );
1678	}
1679
1680	/*
1681	* Hook every iframe at or below `root`. `root` is the document on
1682	* the initial sweep and a freshly-added node thereafter, so the
1683	* walk stays proportional to what actually changed.
1684	*/
1685	function hookNestedFrames( root ) {
1686	if ( ! root \|\| ( 1 !== root.nodeType && 9 !== root.nodeType ) ) {
1687	return; /* text / comment node — nothing to walk */
1688	}
1689	if ( 'IFRAME' === root.nodeName ) {
1690	hookNestedFrame( root );
1691	}
1692	var frames = root.querySelectorAll( 'iframe' );
1693	for ( var i = 0; i < frames.length; i++ ) {
1694	hookNestedFrame( frames[ i ] );
1695	}
1696	}
1697
1698	hookNestedFrames( document );
1699	if ( window.MutationObserver ) {
1700	new MutationObserver( function ( records ) {
1701	for ( var r = 0; r < records.length; r++ ) {
1702	var added = records[ r ].addedNodes;
1703	for ( var n = 0; n < added.length; n++ ) {
1704	hookNestedFrames( added[ n ] );
1705	}
1706	}
1707	} ).observe(
1708	document.documentElement,
1709	{ childList: true, subtree: true }
1710	);
1711	}
1712
1713	/*
1714	* OS-file drop forwarder. When the user drags a file from the
1715	* host OS into a chromeless admin iframe, intercept the drop
1716	* before the browser's default "navigate the iframe to the
1717	* file" handler fires, and `postMessage` the raw `File[]` up
1718	* to the parent shell so the OS-file drop manager
1719	* (`src/os-file-drop/manager.ts`) can show the upload dialog.
1720	*
1721	* Same-origin postMessage preserves `File` identity — the
1722	* parent receives real `File` objects, no base64 round-trip.
1723	*
1724	* We only intercept drops whose `DataTransfer.types` includes
1725	* `'Files'`. In-page DnD (Gutenberg block reorders, media
1726	* library drags) carries non-`Files` types and passes through
1727	* untouched.
1728	*/
1729	function bridgeHasFiles( ev ) {
1730	var t = ev && ev.dataTransfer && ev.dataTransfer.types;
1731	if ( ! t ) {
1732	return false;
1733	}
1734	if ( typeof t.includes === 'function' ) {
1735	return t.includes( 'Files' );
1736	}
1737	if ( typeof t.contains === 'function' ) {
1738	return t.contains( 'Files' );
1739	}
1740	for ( var i = 0; i < t.length; i++ ) {
1741	if ( t[ i ] === 'Files' ) {
1742	return true;
1743	}
1744	}
1745	return false;
1746	}
1747	/*
1748	* Selectors of in-iframe drop receivers we leave alone —
1749	* Gutenberg's drop zone, the legacy media uploader, any
1750	* element a plugin marks with `data-drop-zone`. The whole
1751	* point: file drops onto Gutenberg blocks keep firing
1752	* Gutenberg's handler; only drops on the empty page
1753	* background escalate to the shell.
1754	*/
1755	var bridgeDropPassthroughSelectors = [
1756	'.components-drop-zone',
1757	'[data-drop-zone]',
1758	'.uploader-window',
1759	'.media-frame-content'
1760	];
1761	function bridgeDropTargetWantsFile( target ) {
1762	if ( ! target \|\| ! target.closest ) {
1763	return false;
1764	}
1765	for ( var s = 0; s < bridgeDropPassthroughSelectors.length; s++ ) {
1766	if ( target.closest( bridgeDropPassthroughSelectors[ s ] ) ) {
1767	return true;
1768	}
1769	}
1770	return false;
1771	}
1772	/*
1773	* Bubble phase (not capture): the inner-most handler — Gutenberg's
1774	* drop zone, the legacy media uploader, or a third-party plugin
1775	* like "Administrador de archivos WP" — runs FIRST and gets the
1776	* chance to call `preventDefault()` to claim the drop. Our
1777	* forwarder then runs LAST at the document level and yields to
1778	* anyone who already took ownership.
1779	*
1780	* Two bail conditions, in order:
1781	* 1. `bridgeDropTargetWantsFile()` — the curated allowlist
1782	* (Gutenberg, wp.media, anything tagged `[data-drop-zone]`).
1783	* Kept as the primary check so the well-known core surfaces
1784	* behave identically to before, even if some edge case skips
1785	* the `preventDefault()` step.
1786	* 2. `ev.defaultPrevented` — the universal HTML5 contract: any
1787	* drop zone willing to receive a file calls `preventDefault()`
1788	* on `dragover` (mandatory per spec) and `drop` (to suppress
1789	* the browser's default navigate-to-file). When that's true,
1790	* some inner handler has taken the drop — yield so plugins
1791	* outside the allowlist (WP File Manager, Yoast, etc.) keep
1792	* their native UX.
1793	*/
1794	document.addEventListener( 'dragover', function ( ev ) {
1795	if ( ! bridgeHasFiles( ev ) ) {
1796	return;
1797	}
1798	if ( bridgeDropTargetWantsFile( ev.target ) ) {
1799	return;
1800	}
1801	if ( ev.defaultPrevented ) {
1802	return;
1803	}
1804	ev.preventDefault();
1805	if ( ev.dataTransfer ) {
1806	ev.dataTransfer.dropEffect = 'copy';
1807	}
1808	}, false );
1809	document.addEventListener( 'drop', function ( ev ) {
1810	if ( ! bridgeHasFiles( ev ) ) {
1811	return;
1812	}
1813	if ( bridgeDropTargetWantsFile( ev.target ) ) {
1814	return;
1815	}
1816	if ( ev.defaultPrevented ) {
1817	return;
1818	}
1819	ev.preventDefault();
1820	ev.stopPropagation();
1821	var files = [];
1822	if ( ev.dataTransfer && ev.dataTransfer.files ) {
1823	for ( var i = 0; i < ev.dataTransfer.files.length; i++ ) {
1824	files.push( ev.dataTransfer.files[ i ] );
1825	}
1826	}
1827	if ( files.length === 0 ) {
1828	return;
1829	}
1830	try {
1831	window.parent.postMessage(
1832	{
1833	type: 'os-file-drop',
1834	files: files,
1835	x: ev.clientX,
1836	y: ev.clientY,
1837	},
1838	window.location.origin
1839	);
1840	} catch ( err ) { /* cross-origin parent; swallow */ }
1841	}, false );
1842
1843	/*
1844	* Drag-hover forwarder. Native drag events don't cross iframe
1845	* boundaries, so when the user holds ANY drag (an OS file, an
1846	* image lifted off another admin page, a text selection) over
1847	* this window, the parent shell has no idea the window is being
1848	* hovered. Forward a throttled, payload-free heartbeat so the
1849	* shell's focus-on-drag-hover module
1850	* (`src/drag/focus-window-on-drag-hover.ts`) can raise this
1851	* window after its dwell. Purely observational — no
1852	* `preventDefault()`, no interference with in-page drop zones.
1853	* The parent identifies the hovered window from the message
1854	* source, so no coordinates travel.
1855	*
1856	* Sentinel-guarded: the standalone bridge bundle
1857	* (`iframe-bridge-standalone.ts`) installs the same forwarder,
1858	* and unlike the drop forwarder above there is no
1859	* `defaultPrevented` handshake to dedupe a double install.
1860	*/
1861	if ( ! window.__openStationDragHoverForwarderInstalled ) {
1862	window.__openStationDragHoverForwarderInstalled = true;
1863	var dragHoverLastSent = 0;
1864	document.addEventListener( 'dragover', function ( ev ) {
1865	var now = Date.now();
1866	if ( now - dragHoverLastSent < 150 ) {
1867	return;
1868	}
1869	dragHoverLastSent = now;
1870	try {
1871	window.parent.postMessage(
1872	{
1873	type: 'os-drag-hover',
1874	payloadType: bridgeHasFiles( ev ) ? 'os-file' : 'external',
1875	},
1876	window.location.origin
1877	);
1878	} catch ( err ) { /* cross-origin parent; swallow */ }
1879	}, true );
1880	}
1881
1882	/*
1883	* Pointer forwarder — OPT-IN, off by default.
1884	*
1885	* Pointer events don't cross iframe boundaries, so the parent
1886	* shell goes blind to the cursor the moment it enters a window.
1887	* Anything in the shell that needs to know where the mouse
1888	* actually is while it's over window content — today, the
1889	* Mio's gaze (`src/mio/pointer.ts`) — gets a throttled
1890	* stream of this frame's client coordinates and rebases them
1891	* through the iframe element's own rect.
1892	*
1893	* Strictly opt-in: the parent posts
1894	* `os-pointer-track { enabled: true }` when a consumer
1895	* starts, and `{ enabled: false }` when the last one stops. A
1896	* shell with no consumer never turns this on and pays nothing.
1897	* `os-bridge-ready` (emitted at the end of this script,
1898	* i.e. on every navigation) is the parent's cue to re-arm a
1899	* freshly-loaded frame.
1900	*
1901	* Coordinates only — no target element, no event object, nothing
1902	* about the page content. Purely observational: passive listener,
1903	* no `preventDefault()`.
1904	*
1905	* Sentinel-guarded: the standalone bridge bundle
1906	* (`iframe-bridge-standalone.ts`) installs the same forwarder.
1907	*/
1908	if ( ! window.__openStationPointerForwarderInstalled ) {
1909	window.__openStationPointerForwarderInstalled = true;
1910	var pointerTrackOn = false;
1911	var pointerLastSent = 0;
1912	window.addEventListener( 'message', function ( e ) {
1913	if ( e.origin !== window.location.origin ) return;
1914	if ( ! e.data \|\| e.data.type !== 'os-pointer-track' ) return;
1915	pointerTrackOn = !! e.data.enabled;
1916	} );
1917	document.addEventListener( 'pointermove', function ( ev ) {
1918	if ( ! pointerTrackOn ) return;
1919	var now = Date.now();
1920	// ~25 Hz. The consumer interpolates; a faster stream buys
1921	// nothing visible and costs a postMessage per mouse move.
1922	if ( now - pointerLastSent < 40 ) return;
1923	pointerLastSent = now;
1924	try {
1925	window.parent.postMessage(
1926	{
1927	type: 'os-pointer-move',
1928	x: ev.clientX,
1929	y: ev.clientY
1930	},
1931	window.location.origin
1932	);
1933	} catch ( err ) { /* cross-origin parent; swallow */ }
1934	}, { capture: true, passive: true } );
1935	}
1936
1937	/*
1938	* Cmd+K / Ctrl+K forwarder — single-press, unconditional.
1939	*
1940	* Native keydown events don't cross iframe boundaries. Inside a
1941	* chromeless admin page we want exactly ONE command palette: the
1942	* desktop shell's. WordPress's own `core/commands` palette is
1943	* harvested by `__wpdHarvestCommands` below and re-surfaced in the
1944	* shell palette, so there's no reason to ever let the in-page palette
1945	* take the keystroke.
1946	*
1947	* Capture phase + `stopImmediatePropagation` so we win the race
1948	* against Gutenberg / TinyMCE / plugin handlers bound to the same
1949	* shortcut. Shift/Alt modifiers pass through so user shortcuts using
1950	* those combos keep working.
1951	*/
1952	document.addEventListener( 'keydown', function ( e ) {
1953	if ( ! ( e.metaKey \|\| e.ctrlKey ) ) return;
1954	if ( e.key !== 'k' && e.key !== 'K' ) return;
1955	if ( e.shiftKey \|\| e.altKey ) return;
1956
1957	e.preventDefault();
1958	e.stopImmediatePropagation();
1959
1960	try {
1961	window.parent.postMessage(
1962	{ type: 'os-palette-cycle' },
1963	window.location.origin
1964	);
1965	} catch ( err ) { /* cross-origin parent; swallow */ }
1966	}, true );
1967
1968	/*
1969	* Command harvester — bridges `wp.data.select('core/commands')` to
1970	* the parent shell.
1971	*
1972	* On `os-commands-subscribe` from the parent, subscribe to
1973	* the `core/commands` store and post `os-commands-list` on
1974	* every change (de-duplicated). On `os-commands-invoke`, run
1975	* the original callback inside this iframe — the parent fires this
1976	* when the user selects a proxied command from the shell palette.
1977	*
1978	* Commands are classified by dry-invoking their callback inside a
1979	* `window.location`-intercept sandbox: pure-navigation callbacks
1980	* are flagged `navigate` (with the captured URL) so the parent can
1981	* open a new desktop window instead of navigating this iframe out
1982	* of chromeless mode. Everything else is `action` and proxies back
1983	* into this iframe on user selection.
1984	*/
1985	var __wpdCommandsSubscribed = false;
1986	var __wpdCommandsLastPayload = '';
1987	var __wpdCommandsDebounceId = null;
1988	var __wpdCommandsOrigin = window.location.origin;
1989	// Cache per command name so the `window.location`-intercept
1990	// sandbox only runs once per command. Re-classifying on every
1991	// store tick would repeatedly fire side-effectful action
1992	// callbacks (preference toggles, modal opens) — unacceptable.
1993	// Keyed by name; value is the frozen classification minus the
1994	// live `label` / `icon` (which we always re-read in case the
1995	// command updated its own metadata).
1996	var __wpdCommandsKindCache = Object.create( null );
1997
1998	function __wpdRenderIconElement( icon ) {
1999	if ( ! icon ) return '';
2000	if ( typeof icon === 'string' ) return '';
2001	if ( ! window.wp \|\| ! window.wp.element \|\| typeof window.wp.element.renderToString !== 'function' ) {
2002	return '';
2003	}
2004	try {
2005	var rendered = window.wp.element.renderToString( icon );
2006	// `@wordpress/icons` entries render as a complete `<svg>`
2007	// tag. Anything else (wrapped components, empty fragments,
2008	// strings) falls back to dashicons in the palette — we only
2009	// accept markup we can inject straight into the icon slot.
2010	if ( typeof rendered === 'string' && rendered.toLowerCase().indexOf( '<svg' ) === 0 ) {
2011	return rendered;
2012	}
2013	} catch ( _err ) { /* swallow */ }
2014	return '';
2015	}
2016
2017	function __wpdClassifyCommand( cmd ) {
2018	// Defensive defaults — a broken registry should not tank the bridge.
2019	var out = {
2020	name: String( cmd && cmd.name ? cmd.name : '' ),
2021	label: String( cmd && cmd.label ? cmd.label : '' ),
2022	icon: cmd && cmd.icon && typeof cmd.icon === 'string' ? cmd.icon : undefined,
2023	iconSvg: undefined,
2024	context: cmd && cmd.context ? String( cmd.context ) : undefined,
2025	kind: 'action',
2026	url: undefined
2027	};
2028	if ( ! cmd \|\| typeof cmd.callback !== 'function' ) {
2029	return out;
2030	}
2031
2032	// Short-circuit on cached classifications — `renderToString` on
2033	// the React icon is expensive, and the static URL regex scan
2034	// on `callback.toString()` is pure CPU we've already paid once.
2035	var cached = __wpdCommandsKindCache[ out.name ];
2036	if ( cached ) {
2037	out.kind = cached.kind;
2038	out.url = cached.url;
2039	out.iconSvg = cached.iconSvg;
2040	return out;
2041	}
2042
2043	// Render the React icon once per command name — Gutenberg
2044	// commands ship `icon` as a `@wordpress/icons` React element
2045	// the postMessage bridge can't serialize, so we flatten it to
2046	// a static SVG string here.
2047	if ( cmd.icon && typeof cmd.icon !== 'string' ) {
2048	out.iconSvg = __wpdRenderIconElement( cmd.icon );
2049	}
2050
2051	// STATIC classification — read the callback's source text and
2052	// look for a string-literal navigation target. We deliberately
2053	// do NOT execute the callback. An earlier iteration tried a
2054	// dry-run with a `window.location` intercept sandbox, but
2055	// `Location.prototype.href` is non-configurable: the shim
2056	// silently failed, every nav callback actually navigated the
2057	// iframe, the new page re-harvested, and the cascade opened
2058	// windows forever.
2059	//
2060	// Cases caught (WP's @wordpress/core-commands callbacks are
2061	// all of this shape):
2062	// document.location.href = 'url'
2063	// window.location.href = "url"
2064	// location.href = `url`
2065	// location.assign( 'url' )
2066	// location.replace( 'url' )
2067	//
2068	// Computed URLs (template-literal interpolation, addQueryArgs
2069	// calls, variables) fall back to `action` — the user picking
2070	// them will still run the real callback inside the iframe,
2071	// which is the safe default.
2072	var src = '';
2073	try { src = Function.prototype.toString.call( cmd.callback ); } catch ( _err ) { src = ''; }
2074	var navRe = /(?:document\.location\.href\|window\.location\.href\|location\.href)\s=\s['"]([^'"$]+?)['"]/;
2075	var asgRe = /location\.(?:assign\|replace)\s$\s['"]([^'"$]+?)['"]\s*$/;
2076	var mm = src.match( navRe ) \|\| src.match( asgRe );
2077	if ( mm && mm[ 1 ] ) {
2078	try {
2079	out.url = new URL( mm[ 1 ], window.location.href ).toString();
2080	out.kind = 'navigate';
2081	} catch ( _err ) {
2082	out.kind = 'action';
2083	}
2084	}
2085	__wpdCommandsKindCache[ out.name ] = { kind: out.kind, url: out.url, iconSvg: out.iconSvg };
2086	return out;
2087	}
2088
2089	// Harvested commands accumulate here. The React harvester writes
2090	// the full list each render; `__wpdPostCommandsList` reads + posts.
2091	var __wpdLastRawCommands = [];
2092	// Name → live `callback` reference. Loader-returned commands are
2093	// NOT in `wp.data.select('core/commands').getCommands()` — the
2094	// store only exposes statically-registered entries. Without a
2095	// private cache keyed off the React harvester's most recent render,
2096	// invoking a loader command from the parent palette ("Duplicate
2097	// block", "Transform to...", pattern commands) would silently fall
2098	// through to the `getCommands()` lookup and no-op.
2099	var __wpdCommandCallbacks = Object.create( null );
2100
2101	function __wpdFinalizeCommands( raw ) {
2102	var seen = Object.create( null );
2103	var out = [];
2104	var skipped = { missing: 0, disabled: 0, dup: 0 };
2105	for ( var i = 0; i < raw.length; i++ ) {
2106	var cmd = raw[ i ];
2107	if ( ! cmd \|\| ! cmd.name \|\| ! cmd.label ) { skipped.missing++; continue; }
2108	if ( cmd.disabled ) { skipped.disabled++; continue; }
2109	if ( seen[ cmd.name ] ) { skipped.dup++; continue; }
2110	seen[ cmd.name ] = true;
2111	out.push( __wpdClassifyCommand( cmd ) );
2112	}
2113	return out;
2114	}
2115
2116	function __wpdHarvestCommands() {
2117	return __wpdFinalizeCommands( __wpdLastRawCommands );
2118	}
2119
2120	// React-mounted harvester. Block-level / editor-contextual commands
2121	// (tier 3 loaders like `core/block-editor/selected-block-commands`,
2122	// `core/edit-post/pattern-commands`) are React hooks — they call
2123	// `useSelect` internally, which only works inside a function-
2124	// component render. So we mount an invisible React tree whose
2125	// children invoke each loader's hook at render time. On every
2126	// re-render (block selection changes, entity edits, welcome guide
2127	// toggled) the effect re-posts the fresh command list to the
2128	// parent. One component per loader keeps the rules-of-hooks
2129	// contract — the hook count inside each `LoaderSlot` is fixed at
2130	// one call (plus the constant `useEffect`), so React's reconciler
2131	// is happy.
2132	var __wpdReactMounted = false;
2133	// Stashed so `__wpdUnsubscribeCommands` can tear the harvester
2134	// down when focus leaves the window — otherwise the component
2135	// keeps re-rendering on every store tick, calling `mergeAndPost`,
2136	// and posting command lists the parent drops on the floor.
2137	var __wpdReactRoot = null;
2138	var __wpdReactHost = null;
2139
2140	function __wpdMountReactHarvester() {
2141	if ( __wpdReactMounted ) return;
2142	if ( ! window.wp \|\| ! window.wp.element \|\| ! window.wp.data ) {
2143	return;
2144	}
2145	var el = window.wp.element;
2146	var createEl = el.createElement;
2147	var useEffect = el.useEffect;
2148	var useRef = el.useRef;
2149	var useMemo = el.useMemo;
2150	var useSelect = ( window.wp.data && window.wp.data.useSelect ) \|\| null;
2151	if ( ! createEl \|\| ! useSelect \|\| ! el.createRoot \|\| ! useRef ) {
2152	return;
2153	}
2154	__wpdReactMounted = true;
2155
2156	// Hidden mount point. Positioned off-screen + `aria-hidden` so
2157	// nothing the harvester renders (it renders null anyway) can
2158	// leak into the accessibility tree or the visible document.
2159	var host = document.createElement( 'div' );
2160	host.setAttribute( 'aria-hidden', 'true' );
2161	host.style.cssText = 'position:absolute;width:0;height:0;overflow:hidden;pointer-events:none;left:-9999px;top:-9999px;';
2162	( document.body \|\| document.documentElement ).appendChild( host );
2163	__wpdReactHost = host;
2164
2165	// Shared mutable bucket — ref-based aggregation to avoid the
2166	// classic setState-inside-useEffect loop. A `setState` here
2167	// would fire a parent re-render, which would fire the loader
2168	// hook again, which returns a fresh commands array with a new
2169	// reference even when the contents are identical, which would
2170	// re-fire the effect and setState again → Maximum update
2171	// depth exceeded. Refs don't trigger renders, so the loop is
2172	// broken even when hooks churn references.
2173	var resultsBucket = { perLoader: {}, statics: [], loadersList: [] };
2174
2175	function commandsFingerprint( cmds ) {
2176	if ( ! Array.isArray( cmds ) \|\| cmds.length === 0 ) return '';
2177	// Cheap identity — name count is enough to decide whether
2178	// to re-post. Accepts some false negatives (two different
2179	// commands sharing a name) we'll never hit in practice.
2180	var keys = new Array( cmds.length );
2181	for ( var i = 0; i < cmds.length; i++ ) {
2182	var c = cmds[ i ];
2183	keys[ i ] = c && c.name ? c.name : '';
2184	}
2185	return keys.join( '\|' );
2186	}
2187
2188	function mergeAndPost() {
2189	var merged = [];
2190	var loadersList = resultsBucket.loadersList;
2191	if ( Array.isArray( loadersList ) ) {
2192	for ( var i = 0; i < loadersList.length; i++ ) {
2193	var bucket = resultsBucket.perLoader[ loadersList[ i ] ];
2194	if ( Array.isArray( bucket ) ) merged = merged.concat( bucket );
2195	}
2196	}
2197	if ( Array.isArray( resultsBucket.statics ) ) {
2198	merged = merged.concat( resultsBucket.statics );
2199	}
2200	// Refresh the callback cache off the SAME snapshot we're
2201	// about to post. Loader-returned commands close over React
2202	// state (selected block, edited entity, etc.) that's only
2203	// valid for this render pass, so rebuilding from scratch
2204	// every merge keeps invoke-from-parent honest instead of
2205	// calling a stale closure.
2206	__wpdCommandCallbacks = Object.create( null );
2207	for ( var j = 0; j < merged.length; j++ ) {
2208	var cc = merged[ j ];
2209	if ( cc && cc.name && typeof cc.callback === 'function' ) {
2210	__wpdCommandCallbacks[ cc.name ] = cc.callback;
2211	}
2212	}
2213	__wpdLastRawCommands = merged;
2214	__wpdSchedulePost();
2215	}
2216
2217	// One slot per loader. Calls the loader's hook at render time;
2218	// an effect keyed on the commands' name-fingerprint writes the
2219	// fresh list into the shared bucket and posts. Ref-based, no
2220	// setState → no re-render cascade.
2221	function LoaderSlot( props ) {
2222	var loader = props.loader;
2223	var result = null;
2224	try {
2225	result = loader.hook( { search: '' } );
2226	} catch ( _err ) {
2227	/* swallow — a buggy loader hook shouldn't take the harvester down */
2228	}
2229	var cmds = ( result && Array.isArray( result.commands ) ) ? result.commands : [];
2230	var key = useMemo( function () { return commandsFingerprint( cmds ); }, [ cmds ] );
2231
2232	useEffect( function () {
2233	resultsBucket.perLoader[ loader.name ] = cmds;
2234	mergeAndPost();
2235	}, [ key ] );
2236
2237	useEffect( function () {
2238	return function () {
2239	delete resultsBucket.perLoader[ loader.name ];
2240	mergeAndPost();
2241	};
2242	}, [] );
2243
2244	return null;
2245	}
2246
2247	function Harvester() {
2248	var loaders = useSelect( function ( s ) {
2249	var ss = s( 'core/commands' );
2250	return ( ss && typeof ss.getCommandLoaders === 'function' )
2251	? ss.getCommandLoaders( true )
2252	: [];
2253	}, [] );
2254	var staticCmds = useSelect( function ( s ) {
2255	var ss = s( 'core/commands' );
2256	return ( ss && typeof ss.getCommands === 'function' )
2257	? ss.getCommands( true )
2258	: [];
2259	}, [] );
2260
2261	// Track the loader-name ordering so `mergeAndPost` can emit
2262	// tier-3 in a deterministic order (React reconciliation
2263	// order = registration order = the order the user sees).
2264	var loadersNames = useMemo( function () {
2265	if ( ! Array.isArray( loaders ) ) return [];
2266	return loaders.map( function ( l ) { return l ? l.name : ''; } );
2267	}, [ loaders ] );
2268	var loadersKey = loadersNames.join( '\|' );
2269	useEffect( function () {
2270	resultsBucket.loadersList = loadersNames;
2271	mergeAndPost();
2272	}, [ loadersKey ] );
2273
2274	var staticKey = useMemo( function () { return commandsFingerprint( staticCmds ); }, [ staticCmds ] );
2275	useEffect( function () {
2276	resultsBucket.statics = Array.isArray( staticCmds ) ? staticCmds : [];
2277	mergeAndPost();
2278	}, [ staticKey ] );
2279
2280	if ( ! Array.isArray( loaders ) \|\| loaders.length === 0 ) {
2281	return null;
2282	}
2283	var children = [];
2284	for ( var i = 0; i < loaders.length; i++ ) {
2285	var loader = loaders[ i ];
2286	if ( ! loader \|\| typeof loader.hook !== 'function' ) continue;
2287	children.push( createEl( LoaderSlot, {
2288	key: loader.name,
2289	loader: loader
2290	} ) );
2291	}
2292	return createEl( el.Fragment \|\| 'div', null, children );
2293	}
2294
2295	try {
2296	var root = el.createRoot( host );
2297	__wpdReactRoot = root;
2298	root.render( createEl( Harvester ) );
2299	} catch ( err ) {
2300	__wpdReactMounted = false;
2301	__wpdReactRoot = null;
2302	if ( __wpdReactHost && __wpdReactHost.parentNode ) {
2303	__wpdReactHost.parentNode.removeChild( __wpdReactHost );
2304	}
2305	__wpdReactHost = null;
2306	}
2307	}
2308
2309	function __wpdUnmountReactHarvester() {
2310	if ( __wpdReactRoot ) {
2311	try { __wpdReactRoot.unmount(); } catch ( _err ) { /* swallow */ }
2312	}
2313	__wpdReactRoot = null;
2314	if ( __wpdReactHost && __wpdReactHost.parentNode ) {
2315	__wpdReactHost.parentNode.removeChild( __wpdReactHost );
2316	}
2317	__wpdReactHost = null;
2318	__wpdReactMounted = false;
2319	__wpdLastRawCommands = [];
2320	__wpdCommandCallbacks = Object.create( null );
2321	}
2322
2323	function __wpdPostCommandsList() {
2324	var list = __wpdHarvestCommands();
2325	// Cheap de-dupe — the store fires on every unrelated preference
2326	// change too, and shipping an identical payload is pure noise.
2327	// Fingerprint on `name\|kind\|url` keeps us sensitive to the
2328	// visible surface (name changes, navigate-vs-action flips,
2329	// destination URL changes) while skipping `JSON.stringify` of
2330	// the entire payload — label/icon churn inside a single command
2331	// is rare and re-shipping on it is harmless noise vs. a hot
2332	// path allocation cost.
2333	var key = '';
2334	for ( var k = 0; k < list.length; k++ ) {
2335	var lc = list[ k ];
2336	key += ( lc && lc.name ? lc.name : '' ) + '\|'
2337	+ ( lc && lc.kind ? lc.kind : '' ) + '\|'
2338	+ ( lc && lc.url ? lc.url : '' ) + '\n';
2339	}
2340	if ( key === __wpdCommandsLastPayload ) {
2341	return;
2342	}
2343	__wpdCommandsLastPayload = key;
2344	try {
2345	window.parent.postMessage(
2346	{ type: 'os-commands-list', commands: list },
2347	__wpdCommandsOrigin
2348	);
2349	} catch ( _err ) {
2350	/* cross-origin parent (shouldn't happen for chromeless pages, but
2351	* don't let a throw break the bridge) */
2352	}
2353	}
2354
2355	function __wpdSchedulePost() {
2356	if ( __wpdCommandsDebounceId !== null ) return;
2357	__wpdCommandsDebounceId = window.setTimeout( function () {
2358	__wpdCommandsDebounceId = null;
2359	__wpdPostCommandsList();
2360	}, 60 );
2361	}
2362
2363	function __wpdSubscribeCommands() {
2364	__wpdCommandsSubscribed = true;
2365
2366	// If the React harvester is already running (focus left and
2367	// came back), the bucket still holds the latest merged list.
2368	// Reset the dedupe key so the next post actually ships, then
2369	// schedule it. The harvester itself won't re-fire its effects
2370	// just because the parent re-subscribed — React only reacts to
2371	// store changes, and the store hasn't changed. We have to
2372	// push from here.
2373	if ( __wpdReactMounted ) {
2374	__wpdCommandsLastPayload = '';
2375	__wpdSchedulePost();
2376	return;
2377	}
2378
2379	var attempts = 0;
2380	function tryBind() {
2381	if ( ! __wpdCommandsSubscribed ) return;
2382	if ( ! window.wp \|\| ! window.wp.data \|\| typeof window.wp.data.subscribe !== 'function' ) {
2383	if ( attempts++ < 40 ) {
2384	window.setTimeout( tryBind, 150 );
2385	}
2386	return;
2387	}
2388	// Mount the React harvester — tier 3 loaders are hooks and
2389	// need a legal render context to execute. On every re-render
2390	// the component's effect calls `__wpdSchedulePost` with the
2391	// fresh merged list, so we don't need a separate
2392	// `wp.data.subscribe` callback.
2393	__wpdMountReactHarvester();
2394	}
2395	tryBind();
2396	}
2397
2398	function __wpdUnsubscribeCommands() {
2399	__wpdCommandsSubscribed = false;
2400	__wpdCommandsLastPayload = '';
2401	if ( __wpdCommandsDebounceId !== null ) {
2402	try { window.clearTimeout( __wpdCommandsDebounceId ); } catch ( _err ) { /* swallow */ }
2403	__wpdCommandsDebounceId = null;
2404	}
2405	// Fully tear down the React harvester. Keeping it mounted in
2406	// the background wastes CPU: every store tick re-renders the
2407	// loader hooks, which rebuild the callback cache and post to
2408	// the parent (who drops the message because this window isn't
2409	// the subscribed one). On re-subscribe we remount from scratch.
2410	__wpdUnmountReactHarvester();
2411	}
2412
2413	function __wpdInvokeCommand( name ) {
2414	// Primary lookup — the React harvester's latest snapshot. This
2415	// covers loader-returned commands (Duplicate block, Transform
2416	// to, pattern commands) that never appear in the static
2417	// `getCommands()` list.
2418	var cb = __wpdCommandCallbacks[ name ];
2419	if ( typeof cb === 'function' ) {
2420	try {
2421	cb( { close: function () {} } );
2422	} catch ( _err ) {
2423	/* swallow — a plugin command callback that throws shouldn't break the bridge */
2424	}
2425	return;
2426	}
2427	// Fallback — statically registered commands that never passed
2428	// through the harvester (registered after the last render).
2429	if ( ! window.wp \|\| ! window.wp.data ) {
2430	return;
2431	}
2432	var sel = null;
2433	try { sel = window.wp.data.select( 'core/commands' ); } catch ( _err ) { return; }
2434	if ( ! sel \|\| typeof sel.getCommands !== 'function' ) return;
2435	var raw;
2436	try { raw = sel.getCommands(); } catch ( _err ) { return; }
2437	if ( ! raw ) return;
2438	for ( var i = 0; i < raw.length; i++ ) {
2439	if ( raw[ i ] && raw[ i ].name === name && typeof raw[ i ].callback === 'function' ) {
2440	try {
2441	raw[ i ].callback( { close: function () {} } );
2442	} catch ( _err ) {
2443	/* swallow — see note in primary path above */
2444	}
2445	return;
2446	}
2447	}
2448	}
2449
2450	// Attach the listener BEFORE the bridge-ready ping so a subscribe
2451	// posted synchronously in response is guaranteed to land.
2452	window.addEventListener( 'message', function ( e ) {
2453	if ( e.origin !== __wpdCommandsOrigin ) return;
2454	if ( ! e.data \|\| typeof e.data.type !== 'string' ) return;
2455	if ( e.data.type === 'os-commands-subscribe' ) {
2456	__wpdSubscribeCommands();
2457	} else if ( e.data.type === 'os-commands-unsubscribe' ) {
2458	__wpdUnsubscribeCommands();
2459	} else if ( e.data.type === 'os-commands-invoke' && typeof e.data.name === 'string' ) {
2460	__wpdInvokeCommand( e.data.name );
2461	}
2462	} );
2463
2464	// Handshake: tell the parent we're ready so it can (re)send any
2465	// subscribe that was dispatched before this listener attached.
2466	// Without this ping, a subscribe posted during iframe navigation
2467	// arrives at a context whose message listener isn't installed yet
2468	// and is silently dropped — the symptom is an empty palette even
2469	// though `wp.data.select('core/commands')` is perfectly happy.
2470	try {
2471	window.parent.postMessage(
2472	{ type: 'os-bridge-ready' },
2473	__wpdCommandsOrigin
2474	);
2475	} catch ( _err ) {
2476	/* parent gone or cross-origin — bridge handshake will retry on next load */
2477	}
2478
2479	/*
2480	* ` / Shift+` forwarder — window switcher.
2481	*
2482	* Bare backtick with no modifier. Must skip when focus is in a
2483	* text-entry element, otherwise typing ` into a block, a text
2484	* field, or TinyMCE would steal the keystroke. Non-text inputs
2485	* (checkbox, button, select) don't accept character input, so
2486	* cycling on those is fine.
2487	*
2488	* Same iframe-crossing rationale as the Cmd+K forwarder above:
2489	* native keydown doesn't reach the parent, so we postMessage.
2490	*/
2491	document.addEventListener( 'keydown', function ( e ) {
2492	if ( e.ctrlKey \|\| e.metaKey \|\| e.altKey ) return;
2493	if ( e.code !== 'Backquote' ) return;
2494
2495	// IFRAME case catches Gutenberg: the block canvas is a nested
2496	// iframe, and Gutenberg re-dispatches cloned keydowns up to
2497	// this document for its shortcut system. Without this branch
2498	// typing ` in a block would cycle windows. Any other nested
2499	// iframe owning keyboard handling gets the same treatment.
2500	var el = document.activeElement;
2501	if ( el ) {
2502	var tag = el.tagName;
2503	if ( tag === 'IFRAME' ) return;
2504	if ( tag === 'TEXTAREA' ) return;
2505	if ( tag === 'INPUT' ) {
2506	var type = ( el.type \|\| '' ).toLowerCase();
2507	var textTypes = [
2508	'text', 'search', 'url', 'email', 'password',
2509	'tel', 'number', 'date', 'datetime-local',
2510	'month', 'week', 'time'
2511	];
2512	if ( textTypes.indexOf( type ) !== -1 ) return;
2513	}
2514	if ( el.isContentEditable ) return;
2515	}
2516
2517	e.preventDefault();
2518	e.stopImmediatePropagation();
2519
2520	try {
2521	window.parent.postMessage(
2522	{
2523	type: 'os-window-switch',
2524	direction: e.shiftKey ? 'prev' : 'next'
2525	},
2526	window.location.origin
2527	);
2528	} catch ( err ) { /* cross-origin parent; swallow */ }
2529	}, true );
2530
2531	// Skip if the standalone iframe-bridge bundle already wired
2532	// screen-meta hoisting on this page. Two bridges racing to read
2533	// `aria-expanded` and reflect state would double-fire the
2534	// `os-screen-meta-state` message and flicker the
2535	// title-bar buttons.
2536	if ( window.__openStationScreenMetaInstalled ) {
2537	return;
2538	}
2539	window.__openStationScreenMetaInstalled = true;
2540
2541	// Real screen options render form controls (column toggles, a
2542	// per-page input, custom settings). An empty wrap should not
2543	// surface a dead gear button.
2544	function hasScreenOptionsContent() {
2545	var wrap = document.getElementById( 'screen-options-wrap' );
2546	// WP always renders a nonce hidden input and an "Apply" submit
2547	// inside the wrap, so match only interactive option controls
2548	// (toggles, per-page, radios, selects) — never that always-
2549	// present scaffolding — or an empty panel reads as non-empty.
2550	return !! wrap && !! wrap.querySelector( 'input:not([type="hidden"]):not([type="submit"]):not([type="button"]):not([type="reset"]), select, textarea' );
2551	}
2552	// A help tab registered with empty content + no callback still
2553	// produces #contextual-help-link but an empty panel. Require some
2554	// non-whitespace tab/sidebar text before announcing the button.
2555	function hasHelpContent() {
2556	var wrap = document.getElementById( 'contextual-help-wrap' );
2557	if ( ! wrap ) {
2558	return false;
2559	}
2560	var panelEls = wrap.querySelectorAll( '.help-tab-content, .contextual-help-sidebar' );
2561	for ( var i = 0; i < panelEls.length; i++ ) {
2562	if ( ( panelEls[ i ].textContent \|\| '' ).trim() !== '' ) {
2563	return true;
2564	}
2565	}
2566	return false;
2567	}
2568
2569	var links = document.getElementById( 'screen-meta-links' );
2570	var screenOptionsBtn = links ? document.getElementById( 'show-settings-link' ) : null;
2571	var helpBtn = links ? document.getElementById( 'contextual-help-link' ) : null;
2572	var panels = [];
2573	if ( screenOptionsBtn && hasScreenOptionsContent() ) {
2574	panels.push( 'screen-options' );
2575	}
2576	if ( helpBtn && hasHelpContent() ) {
2577	panels.push( 'help' );
2578	}
2579
2580	var origin = window.location.origin;
2581
2582	// ALWAYS announce — including an empty array — so the parent removes
2583	// stale gear/Help buttons when this page (e.g. after an in-place
2584	// same-slug navigation) has no screen meta. addScreenMetaButtons()
2585	// clears then repopulates, so an empty array removes everything.
2586	window.parent.postMessage( {
2587	type: 'os-screen-meta',
2588	panels: panels
2589	}, origin );
2590
2591	if ( panels.length === 0 ) {
2592	return;
2593	}
2594
2595	function getOpenPanel() {
2596	if ( screenOptionsBtn && screenOptionsBtn.getAttribute( 'aria-expanded' ) === 'true' ) {
2597	return 'screen-options';
2598	}
2599	if ( helpBtn && helpBtn.getAttribute( 'aria-expanded' ) === 'true' ) {
2600	return 'help';
2601	}
2602	return null;
2603	}
2604
2605	function reportState() {
2606	window.parent.postMessage( {
2607	type: 'os-screen-meta-state',
2608	open: getOpenPanel()
2609	}, origin );
2610	}
2611
2612	reportState();
2613
2614	var observer = new MutationObserver( reportState );
2615	if ( screenOptionsBtn ) {
2616	observer.observe( screenOptionsBtn, { attributes: true, attributeFilter: [ 'aria-expanded' ] } );
2617	}
2618	if ( helpBtn ) {
2619	observer.observe( helpBtn, { attributes: true, attributeFilter: [ 'aria-expanded' ] } );
2620	}
2621
2622	// WP's close() animates and shares #screen-meta between both panels,
2623	// so racing two animated clicks hides the panel that just opened.
2624	// Jump the other panel to its closed end state synchronously instead.
2625	function forceClose( button ) {
2626	if ( ! button \|\| button.getAttribute( 'aria-expanded' ) !== 'true' ) {
2627	return;
2628	}
2629	var panelId = button.getAttribute( 'aria-controls' );
2630	var panel = panelId ? document.getElementById( panelId ) : null;
2631	if ( ! panel ) {
2632	return;
2633	}
2634	if ( window.jQuery ) {
2635	window.jQuery( panel ).stop( true, false );
2636	}
2637	panel.style.display = 'none';
2638	panel.classList.add( 'hidden' );
2639	if ( panel.parentNode instanceof HTMLElement ) {
2640	panel.parentNode.style.display = 'none';
2641	}
2642	button.classList.remove( 'screen-meta-active' );
2643	button.setAttribute( 'aria-expanded', 'false' );
2644	var toggles = document.querySelectorAll( '.screen-meta-toggle' );
2645	for ( var i = 0; i < toggles.length; i++ ) {
2646	toggles[ i ].style.visibility = '';
2647	}
2648	}
2649
2650	/* -----------------------------------------------------------------
2651	* Broadcast receiver — iframe side.
2652	*
2653	* The parent shell publishes broadcasts via
2654	* `wp.os.broadcast(topic, payload)` (see `src/broadcast.ts`).
2655	* It posts `{ type: 'os-broadcast', topic, payload }` to
2656	* every open iframe. Here we re-dispatch that as a CustomEvent
2657	* on the iframe's own document so admin pages can subscribe with
2658	* plain `document.addEventListener( 'os-broadcast', cb )`
2659	* — no extra script handle required.
2660	*
2661	* Iframe-side admin code can also publish UPSTREAM by posting
2662	* the same shape to `window.parent`; the parent's
2663	* `installBroadcastReceiver()` re-broadcasts to every other
2664	* iframe + native window.
2665	* ----------------------------------------------------------------- */
2666	window.addEventListener( 'message', function ( e ) {
2667	if ( e.origin !== origin ) {
2668	return;
2669	}
2670	if ( ! e.data \|\| e.data.type !== 'os-broadcast' ) {
2671	return;
2672	}
2673	try {
2674	document.dispatchEvent( new CustomEvent( 'os-broadcast', {
2675	detail: { topic: e.data.topic, payload: e.data.payload }
2676	} ) );
2677	} catch ( _err ) { /* old browser without CustomEvent ctor — ignore */ }
2678	} );
2679
2680	/* -----------------------------------------------------------------
2681	* Soft-reload — iframe-side default handler.
2682	*
2683	* When a `os.<post_type>.changed` broadcast fires AND the
2684	* current iframe is on a known list page for that post type, we
2685	* fetch the current URL and replace the iframe's `#wpbody-content`
2686	* in place. The user sees the new state of the list — restored
2687	* post appears, deleted media disappears — without the WP loading
2688	* spinner that `location.reload()` would show.
2689	*
2690	* Single-edit pages (`post.php`, `post-new.php`, the HPOS order
2691	* editor) are deliberately NOT matched: replacing their body would
2692	* destroy any unsaved Gutenberg/classic-editor state. Plugins that
2693	* want specific behaviour for those pages can subscribe to the
2694	* same topic on `document` and handle it themselves.
2695	*
2696	* Matching is generic: the current page's "list type" is derived
2697	* from the URL (`edit.php` → its `post_type` param or `post`,
2698	* `upload.php` → `attachment`, `edit-comments.php` → `comment`)
2699	* and compared against the `<type>` captured from any
2700	* `os.<type>.changed` topic — so every custom post
2701	* type's `edit.php?post_type=X` screen participates with zero
2702	* per-type code. Non-`edit.php` list screens (e.g. WooCommerce's
2703	* HPOS `admin.php?page=wc-orders`) are covered by declarative
2704	* extra rules, filterable server-side via
2705	* `openstation_soft_reload_rules`.
2706	*
2707	* The fetch carries a custom header so a later phase can serve a
2708	* minimal partial response if we want to optimise; for now WP
2709	* returns the full admin page and we just pluck the body.
2710	*
2711	* Most WP list-table JS delegates on `document`/`body` and
2712	* survives the swap. The inline editors don't, so
2713	* `_openstationReinitListTables()` below re-runs Core's init
2714	* entry points afterwards. A page needing more than that should
2715	* listen for `os-soft-reloaded`, which fires after that re-init.
2716	* ----------------------------------------------------------------- */
2717	var OPENSTATION_SOFT_RELOAD_EXTRAS = /__OPENSTATION_SOFT_RELOAD_EXTRAS__/;
2718
2719	function _openstationEndsWith( s, suffix ) { return s.lastIndexOf( suffix ) === s.length - suffix.length; }
2720
2721	function _openstationListType() {
2722	if ( _openstationEndsWith( location.pathname, '/wp-admin/edit.php' ) ) {
2723	return new URLSearchParams( location.search ).get( 'post_type' ) \|\| 'post';
2724	}
2725	if ( _openstationEndsWith( location.pathname, '/wp-admin/upload.php' ) ) {
2726	return 'attachment';
2727	}
2728	if ( _openstationEndsWith( location.pathname, '/wp-admin/edit-comments.php' ) ) {
2729	return 'comment';
2730	}
2731	if ( _openstationEndsWith( location.pathname, '/wp-admin/plugins.php' ) ) {
2732	return 'plugin';
2733	}
2734	// plugin-install.php is intentionally not a soft-reload target.
2735	// Reloading that page mid-session would discard the user's search
2736	// results or reset an in-progress install. The page still emits
2737	// plugin.changed (via notifyPluginInstall below); it just doesn't
2738	// reload itself in response to one.
2739	return null;
2740	}
2741
2742	function _openstationMatchesExtraRule( rule ) {
2743	if ( ! rule \|\| ! rule.path ) {
2744	return false;
2745	}
2746	if ( ! _openstationEndsWith( location.pathname, '/wp-admin/' + rule.path ) ) {
2747	return false;
2748	}
2749	var params = new URLSearchParams( location.search );
2750	if ( rule.query ) {
2751	for ( var key in rule.query ) {
2752	if ( ! Object.prototype.hasOwnProperty.call( rule.query, key ) ) {
2753	continue;
2754	}
2755	if ( params.get( key ) !== String( rule.query[ key ] ) ) {
2756	return false;
2757	}
2758	}
2759	}
2760	if ( rule.queryAbsent ) {
2761	for ( var i = 0; i < rule.queryAbsent.length; i++ ) {
2762	if ( params.has( rule.queryAbsent[ i ] ) ) {
2763	return false;
2764	}
2765	}
2766	}
2767	return true;
2768	}
2769
2770	function _openstationSoftReloadTopicMatches( topic ) {
2771	var m = /^os\.(.+)\.changed$/.exec( topic );
2772	if ( m && m[ 1 ] === _openstationListType() ) {
2773	return true;
2774	}
2775	for ( var i = 0; i < OPENSTATION_SOFT_RELOAD_EXTRAS.length; i++ ) {
2776	var rule = OPENSTATION_SOFT_RELOAD_EXTRAS[ i ];
2777	if ( rule && rule.topic === topic && _openstationMatchesExtraRule( rule ) ) {
2778	return true;
2779	}
2780	}
2781	return false;
2782	}
2783
2784	var _openstationSoftReloadInFlight = false;
2785	var _openstationSoftReloadQueued = false;
2786
2787	/*
2788	* Re-init Core's list-table editors after a soft reload.
2789	*
2790	* Core's inline editors bind to elements inside `#wpbody-content`
2791	* instead of delegating on `document`: `#the-list` for Quick Edit
2792	* (inline-edit-post.js, inline-edit-tax.js), `#doaction` for Bulk
2793	* Edit, `#the-comment-list` for the comment inline editors. The
2794	* swap above throws those elements away, so the buttons keep
2795	* rendering and stop working.
2796	*
2797	* Only re-run an init whose every binding lands inside the
2798	* replaced subtree — then the fresh DOM gets it exactly once and
2799	* nothing accumulates. `setCommentsList()` fails that test and is
2800	* NOT called here: it re-runs `wpList`, whose `process()` binds on
2801	* `document` (which survives), so each call stacks another set of
2802	* comment row-action handlers and one Approve click ends up firing
2803	* N moderation requests. Those handlers were never broken by the
2804	* swap; only the closure state behind them goes stale, which costs
2805	* a stale total count until the next reload.
2806	*
2807	* Also left alone: `common.js`'s empty-bulk-action guard and
2808	* search-box mousedown, and `$.table_hotkeys` (comment moderation
2809	* shortcuts stop navigating; re-running it would double-register).
2810	* All degraded rather than dead, and each would mean copying
2811	* dozens of lines of Core in here.
2812	*/
2813	function _openstationReinitListTables() {
2814	var $ = window.jQuery;
2815	if ( ! $ ) {
2816	return;
2817	}
2818
2819	/*
2820	* Mobile row expander. `common.js` binds it per-`tbody`, all
2821	* of which we just replaced. Narrow windows are the norm in
2822	* the shell, so it is often the only row affordance on screen.
2823	*
2824	* Per-`tbody` on purpose. Delegating on the now-surviving
2825	* `#wpbody-content` would stack with Core's own binding on
2826	* first load and toggle the row twice, back to closed.
2827	*/
2828	$( '#wpbody-content tbody' ).on( 'click', '.toggle-row', function () {
2829	$( this ).closest( 'tr' ).toggleClass( 'is-expanded' );
2830	} );
2831
2832	if ( document.getElementById( 'the-list' ) ) {
2833	try {
2834	if ( window.inlineEditPost && typeof window.inlineEditPost.init === 'function' ) {
2835	window.inlineEditPost.init();
2836	}
2837	} catch ( err ) { _openstationWarnReinit( 'inline-edit-post', err ); }
2838	try {
2839	if ( window.inlineEditTax && typeof window.inlineEditTax.init === 'function' ) {
2840	window.inlineEditTax.init();
2841	}
2842	} catch ( err ) { _openstationWarnReinit( 'inline-edit-tax', err ); }
2843	}
2844
2845	if ( document.getElementById( 'the-comment-list' ) && window.commentReply ) {
2846	try {
2847	if ( typeof window.commentReply.init === 'function' ) {
2848	window.commentReply.init();
2849	}
2850	} catch ( err ) { _openstationWarnReinit( 'comment-reply', err ); }
2851	try {
2852	/*
2853	* Quick Edit / Reply / Edit on a comment row.
2854	* edit-comments.js binds this in its own doc-ready
2855	* rather than in `commentReply.init`, so there is
2856	* nothing to re-call. Mirror Core's handler.
2857	*/
2858	$( '#the-comment-list' ).on( 'click', '.comment-inline', function () {
2859	var $el = $( this ),
2860	action = 'replyto';
2861
2862	if ( 'undefined' !== typeof $el.data( 'action' ) ) {
2863	action = $el.data( 'action' );
2864	}
2865
2866	$( this ).attr( 'aria-expanded', 'true' );
2867	window.commentReply.open( $el.data( 'commentId' ), $el.data( 'postId' ), action );
2868	} );
2869	} catch ( err ) { _openstationWarnReinit( 'comment-inline', err ); }
2870	}
2871	}
2872
2873	/*
2874	* One failing re-init must not take the others, or the
2875	* `os-soft-reloaded` listeners after them, down with it. Warn
2876	* rather than swallow: a silent catch here looks exactly like the
2877	* bug this function exists to fix.
2878	*/
2879	function _openstationWarnReinit( which, err ) {
2880	if ( window.console && window.console.warn ) {
2881	window.console.warn( '[openstation] soft-reload re-init failed for ' + which + ':', err );
2882	}
2883	}
2884
2885	function _openstationSoftReload() {
2886	if ( _openstationSoftReloadInFlight ) {
2887	_openstationSoftReloadQueued = true;
2888	return;
2889	}
2890	_openstationSoftReloadInFlight = true;
2891	fetch( location.href, {
2892	credentials: 'same-origin',
2893	cache: 'no-cache',
2894	headers: { 'X-WP-Desktop-Soft-Reload': '1' }
2895	} ).then( function ( r ) {
2896	if ( ! r.ok ) throw new Error( 'soft-reload fetch failed: ' + r.status );
2897	return r.text();
2898	} ).then( function ( html ) {
2899	var doc = new DOMParser().parseFromString( html, 'text/html' );
2900	var fresh = doc.querySelector( '#wpbody-content' );
2901	var live = document.querySelector( '#wpbody-content' );
2902	if ( ! fresh \|\| ! live ) {
2903	/* Markup we expected isn't there — admin pages we
2904	* don't recognise (or core changes the structure).
2905	* Don't reload; let the iframe stay as it is rather
2906	* than show a spinner the user told us not to. */
2907	return;
2908	}
2909	/*
2910	* Swap the CONTENTS of `#wpbody-content`, keeping the
2911	* node. Keeping it preserves handlers delegated on it,
2912	* which is where `common.js` puts the row-actions focus
2913	* reveal. Core emits the container as a bare
2914	* `<div id="wpbody-content">`, so the only thing this
2915	* discards is any attribute a plugin added to `fresh`.
2916	*/
2917	live.replaceChildren.apply( live, Array.prototype.slice.call( fresh.childNodes ) );
2918	_openstationReinitListTables();
2919	try {
2920	document.dispatchEvent( new CustomEvent( 'os-soft-reloaded' ) );
2921	} catch ( _err ) {}
2922	/* Some WP scripts re-init on DOMContentLoaded only — let
2923	* pages opt-in to a re-init by listening to the event
2924	* above. We intentionally do NOT re-fire DOMContentLoaded;
2925	* that's almost always wrong (double-init of jQuery/WP). */
2926	} ).catch( function ( err ) {
2927	/* Network error — leave the iframe untouched. The user's
2928	* next manual interaction will refresh state, and the
2929	* next broadcast will retry. */
2930	if ( window.console && window.console.warn ) {
2931	window.console.warn( '[openstation] soft-reload skipped:', err );
2932	}
2933	} ).then( function () {
2934	_openstationSoftReloadInFlight = false;
2935	if ( _openstationSoftReloadQueued ) {
2936	_openstationSoftReloadQueued = false;
2937	_openstationSoftReload();
2938	}
2939	} );
2940	}
2941
2942	document.addEventListener( 'os-broadcast', function ( e ) {
2943	var detail = e.detail \|\| {};
2944	var topic = detail.topic;
2945	if ( ! topic ) return;
2946	if ( _openstationSoftReloadTopicMatches( topic ) ) {
2947	_openstationSoftReload();
2948	}
2949	} );
2950
2951	window.addEventListener( 'message', function( e ) {
2952	if ( e.origin !== origin ) {
2953	return;
2954	}
2955	if ( ! e.data \|\| e.data.type !== 'os-toggle-panel' ) {
2956	return;
2957	}
2958	var target = null;
2959	if ( e.data.panel === 'screen-options' && screenOptionsBtn ) {
2960	target = screenOptionsBtn;
2961	} else if ( e.data.panel === 'help' && helpBtn ) {
2962	target = helpBtn;
2963	}
2964	if ( ! target ) {
2965	return;
2966	}
2967	if ( target.getAttribute( 'aria-expanded' ) !== 'true' ) {
2968	var other = target === screenOptionsBtn ? helpBtn : screenOptionsBtn;
2969	forceClose( other );
2970	}
2971	target.click();
2972	} );
2973
2974	/* -----------------------------------------------------------------
2975	* Connection bridge — iframe side.
2976	*
2977	* Plugins call `wp.os.iframe.publish(topic, payload)` /
2978	* `subscribe(topic, cb)` / `onConnection(cb)` to talk to a parent-
2979	* side `wp.os.connect()` caller. The shell only routes;
2980	* topic semantics are plugin-defined.
2981	*
2982	* Connections are tracked locally so `onConnection` can fire when
2983	* the parent opens a new channel (typical use: start emitting
2984	* heavy events only after at least one consumer subscribed). Each
2985	* connection carries a topic-allowlist negotiated at handshake
2986	* time — wildcard ('*') subscribers see everything.
2987	* ----------------------------------------------------------------- */
2988	var _wpdConnections = {};
2989	var _wpdConnectionListeners = [];
2990	var _wpdSubs = {}; // topic → [cb, ...]
2991	var _wpdChannelSubs = {}; // channel → [cb, ...] (window-channel API)
2992	var _wpdParentOrigin = window.location.origin;
2993	var _wpdWindowId = null; // host window id, from the handshake
2994	var _wpdWindowIdWaiters = []; // pending whenWindowId() resolvers
2995
2996	/* Stash the host window's id (the parent's handshake carries
2997	* `targetWindowId`) and flush any `whenWindowId()` waiters. Same
2998	* contract as `assets/js/iframe-bridge.js`. */
2999	function _wpdSetWindowId( id ) {
3000	if ( ! id \|\| _wpdWindowId === id ) {
3001	return;
3002	}
3003	_wpdWindowId = id;
3004	var waiters = _wpdWindowIdWaiters.splice( 0 );
3005	for ( var i = 0; i < waiters.length; i++ ) {
3006	try {
3007	waiters[ i ]( id );
3008	} catch ( _err ) { /* swallow */ }
3009	}
3010	}
3011
3012	function _wpdEmitToParent( connectionId, topic, payload ) {
3013	try {
3014	window.parent.postMessage( {
3015	type: 'os-bridge-publish',
3016	connectionId: connectionId,
3017	topic: topic,
3018	payload: payload
3019	}, _wpdParentOrigin );
3020	} catch ( _err ) { /* parent gone */ }
3021	}
3022
3023	window.addEventListener( 'message', function ( ev ) {
3024	if ( ev.origin !== _wpdParentOrigin ) {
3025	return;
3026	}
3027	var data = ev && ev.data;
3028	if ( ! data \|\| typeof data !== 'object' \|\| typeof data.type !== 'string' ) {
3029	return;
3030	}
3031
3032	if ( data.type === 'os-bridge-beforeunload-query' ) {
3033	var prevent = false;
3034	var msg = '';
3035
3036	function shimReturnValue( ev ) {
3037	Object.defineProperty( ev, 'returnValue', {
3038	get: function() { return this._returnValue \|\| ''; },
3039	set: function( v ) { this._returnValue = v; }
3040	} );
3041	}
3042
3043	function checkPrevent( ev, result ) {
3044	var hasRes = typeof result === 'string' && result !== '';
3045	var hasRetVal = typeof ev.returnValue === 'string' && ev.returnValue !== '';
3046	if ( ev.defaultPrevented \|\| hasRes \|\| hasRetVal ) {
3047	prevent = true;
3048	if ( hasRes ) {
3049	msg = result;
3050	} else if ( hasRetVal ) {
3051	msg = ev.returnValue;
3052	}
3053	}
3054	}
3055
3056	var unloadEvent;
3057	try {
3058	unloadEvent = new Event( 'beforeunload', { cancelable: true } );
3059	} catch ( _err ) {
3060	unloadEvent = document.createEvent( 'Event' );
3061	unloadEvent.initEvent( 'beforeunload', false, true );
3062	}
3063	shimReturnValue( unloadEvent );
3064
3065	if ( typeof window.onbeforeunload === 'function' ) {
3066	var res = window.onbeforeunload( unloadEvent );
3067	checkPrevent( unloadEvent, res );
3068	}
3069	if ( ! prevent ) {
3070	var dispatchEvent;
3071	try {
3072	dispatchEvent = new Event( 'beforeunload', { cancelable: true } );
3073	} catch ( _err ) {
3074	dispatchEvent = document.createEvent( 'Event' );
3075	dispatchEvent.initEvent( 'beforeunload', false, true );
3076	}
3077	shimReturnValue( dispatchEvent );
3078	window.dispatchEvent( dispatchEvent );
3079	checkPrevent( dispatchEvent, null );
3080	}
3081
3082	try {
3083	window.parent.postMessage( {
3084	type: 'os-bridge-beforeunload-response',
3085	prevent: prevent,
3086	message: msg
3087	}, _wpdParentOrigin );
3088	} catch ( _err ) { /* swallow */ }
3089	return;
3090	}
3091
3092	if ( data.type === 'os-bridge-handshake' && typeof data.connectionId === 'string' ) {
3093	/* The parent's handshake carries the host window id —
3094	* stash it so `wp.os.iframe.windowId` and
3095	* `whenWindowId()` can serve callers that need to know
3096	* which native window opened this iframe. */
3097	if ( typeof data.targetWindowId === 'string' && data.targetWindowId !== '' ) {
3098	_wpdSetWindowId( data.targetWindowId );
3099	}
3100	if ( _wpdConnections[ data.connectionId ] ) {
3101	/* Re-handshake on iframe-ready re-arm — no-op besides
3102	* acking again so the parent can resume. */
3103	try {
3104	window.parent.postMessage( {
3105	type: 'os-bridge-handshake-ack',
3106	connectionId: data.connectionId
3107	}, _wpdParentOrigin );
3108	} catch ( _err ) { /* swallow */ }
3109	return;
3110	}
3111	var conn = {
3112	id: data.connectionId,
3113	topics: Array.isArray( data.topics ) ? data.topics.slice() : []
3114	};
3115	_wpdConnections[ conn.id ] = conn;
3116	try {
3117	window.parent.postMessage( {
3118	type: 'os-bridge-handshake-ack',
3119	connectionId: conn.id
3120	}, _wpdParentOrigin );
3121	} catch ( _err ) { /* swallow */ }
3122	for ( var i = 0; i < _wpdConnectionListeners.length; i++ ) {
3123	try {
3124	_wpdConnectionListeners[ i ]( {
3125	id: conn.id,
3126	topics: conn.topics.slice()
3127	} );
3128	} catch ( _err ) { /* swallow listener */ }
3129	}
3130	return;
3131	}
3132
3133	if ( data.type === 'os-bridge-publish' && typeof data.topic === 'string' ) {
3134	var bucket = _wpdSubs[ data.topic ];
3135	if ( bucket ) {
3136	for ( var j = 0; j < bucket.length; j++ ) {
3137	try {
3138	bucket[ j ]( data.payload, { topic: data.topic, connectionId: data.connectionId } );
3139	} catch ( _err ) { /* swallow subscriber */ }
3140	}
3141	}
3142	var wildcard = _wpdSubs[ '*' ];
3143	if ( wildcard ) {
3144	for ( var k = 0; k < wildcard.length; k++ ) {
3145	try {
3146	wildcard[ k ]( data.payload, { topic: data.topic, connectionId: data.connectionId } );
3147	} catch ( _err ) { /* swallow */ }
3148	}
3149	}
3150	return;
3151	}
3152
3153	if ( data.type === 'os-bridge-disconnect' && typeof data.connectionId === 'string' ) {
3154	delete _wpdConnections[ data.connectionId ];
3155	return;
3156	}
3157
3158	/* Unified window-channel delivery from the parent. Fires
3159	* every `wp.os.on( channel, cb )` subscriber for the
3160	* matching channel — same protocol as
3161	* `assets/js/iframe-bridge.js`. */
3162	if ( data.type === 'os-window-send' && typeof data.channel === 'string' && data.channel !== '' ) {
3163	var meta = { channel: data.channel };
3164	var cBucket = _wpdChannelSubs[ data.channel ];
3165	if ( cBucket ) {
3166	var cBucketSnap = cBucket.slice();
3167	for ( var ci = 0; ci < cBucketSnap.length; ci++ ) {
3168	try {
3169	cBucketSnap[ ci ]( data.payload, meta );
3170	} catch ( _err ) { /* swallow */ }
3171	}
3172	}
3173	var cWildcard = _wpdChannelSubs[ '*' ];
3174	if ( cWildcard ) {
3175	var cWildcardSnap = cWildcard.slice();
3176	for ( var cw = 0; cw < cWildcardSnap.length; cw++ ) {
3177	try {
3178	cWildcardSnap[ cw ]( data.payload, meta );
3179	} catch ( _err ) { /* swallow */ }
3180	}
3181	}
3182	return;
3183	}
3184	} );
3185
3186	var iframeApi = {
3187	/**
3188	* Publish a payload under a topic. Sent to every connection
3189	* — typical case is one connection per parent caller, but
3190	* a debug console may have several at once.
3191	*/
3192	publish: function ( topic, payload ) {
3193	if ( typeof topic !== 'string' \|\| topic === '' ) {
3194	return;
3195	}
3196	var ids = Object.keys( _wpdConnections );
3197	for ( var i = 0; i < ids.length; i++ ) {
3198	_wpdEmitToParent( ids[ i ], topic, payload );
3199	}
3200	},
3201	/**
3202	* Subscribe to a topic. Returns an unsubscribe function.
3203	* Use `'*'` to receive every published payload (debugging).
3204	*/
3205	subscribe: function ( topic, cb ) {
3206	if ( typeof topic !== 'string' \|\| topic === '' \|\| typeof cb !== 'function' ) {
3207	return function () {};
3208	}
3209	var bucket = _wpdSubs[ topic ];
3210	if ( ! bucket ) {
3211	bucket = [];
3212	_wpdSubs[ topic ] = bucket;
3213	}
3214	bucket.push( cb );
3215	return function () {
3216	var i = bucket.indexOf( cb );
3217	if ( i >= 0 ) {
3218	bucket.splice( i, 1 );
3219	}
3220	};
3221	},
3222	/**
3223	* Notified whenever a parent caller opens a connection. Use
3224	* to start emitting heavy publish events only when somebody
3225	* is listening.
3226	*/
3227	onConnection: function ( cb ) {
3228	if ( typeof cb !== 'function' ) {
3229	return function () {};
3230	}
3231	_wpdConnectionListeners.push( cb );
3232	/* Replay current connections — late subscribers still
3233	* see who's already there. */
3234	var ids = Object.keys( _wpdConnections );
3235	for ( var i = 0; i < ids.length; i++ ) {
3236	try {
3237	cb( {
3238	id: _wpdConnections[ ids[ i ] ].id,
3239	topics: _wpdConnections[ ids[ i ] ].topics.slice()
3240	} );
3241	} catch ( _err ) { /* swallow */ }
3242	}
3243	return function () {
3244	var i = _wpdConnectionListeners.indexOf( cb );
3245	if ( i >= 0 ) {
3246	_wpdConnectionListeners.splice( i, 1 );
3247	}
3248	};
3249	},
3250	/**
3251	* Iframe-initiated connection request. See
3252	* `assets/js/iframe-bridge.js` — same shape, same protocol.
3253	*/
3254	requestConnection: function ( opts ) {
3255	opts = opts \|\| {};
3256	var topics = Array.isArray( opts.topics ) ? opts.topics.slice() : [];
3257	var requestId = 'wpdir-' + Math.random().toString( 36 ).slice( 2, 10 );
3258
3259	return new Promise( function ( resolve, reject ) {
3260	var settled = false;
3261	var timeoutMs = typeof opts.timeoutMs === 'number'
3262	? opts.timeoutMs
3263	: 5000;
3264
3265	function settle( ok, value ) {
3266	if ( settled ) {
3267	return;
3268	}
3269	settled = true;
3270	window.removeEventListener( 'message', onAck );
3271	clearTimeout( timer );
3272	if ( ok ) {
3273	resolve( value );
3274	} else {
3275	reject( value );
3276	}
3277	}
3278
3279	function onAck( ev ) {
3280	if ( ev.origin !== _wpdParentOrigin ) {
3281	return;
3282	}
3283	var d = ev && ev.data;
3284	if (
3285	! d \|\|
3286	typeof d !== 'object' \|\|
3287	d.type !== 'os-bridge-connection-ack' \|\|
3288	d.requestId !== requestId
3289	) {
3290	return;
3291	}
3292	if ( d.accepted ) {
3293	var summary = {
3294	id: typeof d.connectionId === 'string' ? d.connectionId : '',
3295	topics: topics.slice()
3296	};
3297	if ( typeof opts.onOpen === 'function' ) {
3298	try { opts.onOpen( summary ); } catch ( _err ) { /* swallow */ }
3299	}
3300	settle( true, summary );
3301	} else {
3302	settle( false, new Error( d.reason \|\| 'rejected' ) );
3303	}
3304	}
3305	window.addEventListener( 'message', onAck );
3306
3307	var timer = setTimeout( function () {
3308	settle( false, new Error( 'timeout' ) );
3309	}, timeoutMs );
3310
3311	try {
3312	window.parent.postMessage( {
3313	type: 'os-bridge-connection-request',
3314	requestId: requestId,
3315	topics: topics
3316	}, _wpdParentOrigin );
3317	} catch ( err ) {
3318	settle( false, err );
3319	}
3320	} );
3321	},
3322	/**
3323	* Window-chrome helpers. See `assets/js/iframe-bridge.js` —
3324	* same shape, same protocol. `setSlot` is HTML-only
3325	* (sandboxed via `textContent` on the parent side).
3326	*/
3327	chrome: {
3328	setTheme: function ( tokens ) {
3329	try {
3330	window.parent.postMessage( {
3331	type: 'os-chrome-theme',
3332	tokens: tokens \|\| {}
3333	}, _wpdParentOrigin );
3334	} catch ( _err ) { /* parent gone */ }
3335	},
3336	setControls: function ( config ) {
3337	try {
3338	window.parent.postMessage( {
3339	type: 'os-chrome-controls',
3340	config: config === undefined ? null : config
3341	}, _wpdParentOrigin );
3342	} catch ( _err ) { /* parent gone */ }
3343	},
3344	setSlot: function ( name, html ) {
3345	if ( typeof name !== 'string' \|\| name === '' ) {
3346	return;
3347	}
3348	try {
3349	window.parent.postMessage( {
3350	type: 'os-chrome-slot',
3351	slot: name,
3352	html: typeof html === 'string' ? html : ''
3353	}, _wpdParentOrigin );
3354	} catch ( _err ) { /* parent gone */ }
3355	}
3356	},
3357	/**
3358	* The id of the window the parent shell opened to host this
3359	* iframe. Populated by the first connection handshake (the
3360	* parent's handshake carries `targetWindowId`). `null` until
3361	* then.
3362	*/
3363	get windowId() {
3364	return _wpdWindowId;
3365	},
3366	/**
3367	* Resolve once `windowId` is populated by the first handshake.
3368	* Resolves immediately if already known. Never rejects — guard
3369	* with `isParentReachable()` first.
3370	*/
3371	whenWindowId: function () {
3372	if ( _wpdWindowId !== null ) {
3373	return Promise.resolve( _wpdWindowId );
3374	}
3375	return new Promise( function ( resolve ) {
3376	_wpdWindowIdWaiters.push( resolve );
3377	} );
3378	},
3379	/**
3380	* Whether the parent frame is same-origin and reachable. All
3381	* bridge messages hard-filter on origin — a cross-origin
3382	* parent silently drops everything we post. Use this predicate
3383	* to fail fast instead of debugging vanishing messages.
3384	*/
3385	isParentReachable: function () {
3386	if ( ! window.parent \|\| window.parent === window ) {
3387	return false;
3388	}
3389	try {
3390	/* Cross-origin parents throw on `.location.origin`
3391	* access; same-origin parents return a string we can
3392	* compare to our own origin. */
3393	return window.parent.location.origin === _wpdParentOrigin;
3394	} catch ( _err ) {
3395	return false;
3396	}
3397	}
3398	};
3399
3400	if ( ! window.wp ) { window.wp = {}; }
3401	if ( ! window.wp.os ) { window.wp.os = {}; }
3402	window.wp.os.iframe = iframeApi;
3403
3404	/* Unified window-channel API. Mirror of the equivalent block
3405	* in `assets/js/iframe-bridge.js` — keep both in sync. The
3406	* parent shell posts `os-window-send` on
3407	* `Window.send( channel, payload )`; iframe-side handlers
3408	* register via `wp.os.on( channel, cb )`. Sending the
3409	* other way (`wp.os.send`) posts up to the parent where
3410	* `Window.on( channel, cb )` subscribers fire. */
3411	if ( typeof window.wp.os.send !== 'function' ) {
3412	window.wp.os.send = function ( channel, payload ) {
3413	if ( typeof channel !== 'string' \|\| channel === '' ) {
3414	return;
3415	}
3416	try {
3417	window.parent.postMessage( {
3418	type: 'os-window-publish',
3419	channel: channel,
3420	payload: payload
3421	}, _wpdParentOrigin );
3422	} catch ( _err ) { /* parent gone */ }
3423	};
3424	}
3425	if ( typeof window.wp.os.on !== 'function' ) {
3426	window.wp.os.on = function ( channel, cb ) {
3427	if ( typeof channel !== 'string' \|\| channel === '' \|\| typeof cb !== 'function' ) {
3428	return function () {};
3429	}
3430	var bucket = _wpdChannelSubs[ channel ];
3431	if ( ! bucket ) {
3432	bucket = [];
3433	_wpdChannelSubs[ channel ] = bucket;
3434	}
3435	bucket.push( cb );
3436	return function () {
3437	var i = bucket.indexOf( cb );
3438	if ( i >= 0 ) {
3439	bucket.splice( i, 1 );
3440	}
3441	};
3442	};
3443	}
3444
3445	/* -----------------------------------------------------------------
3446	* Stale-nonce recovery after a session-expiry re-login.
3447	*
3448	* When the user's session expires while a chromeless window is
3449	* open, this iframe does NOT show core's `wp-auth-check` login
3450	* modal — `openstation_chromeless_suppress_auth_check()` keeps
3451	* the modal assets out of chromeless requests so the parent
3452	* shell owns the single prompt for the whole desktop. Detection
3453	* still works without the modal JS: core attaches the
3454	* `wp-auth-check` boolean to every heartbeat response
3455	* server-side, and this iframe's own heartbeat keeps ticking.
3456	*
3457	* After re-auth the auth cookie is fresh — but every per-page
3458	* nonce cached in JS globals (`_wpUpdatesSettings.ajax_nonce`,
3459	* `commonL10n.nonce`, Gutenberg's `wpApiSettings.nonce`, etc.)
3460	* was minted under the OLD session and is now rejected by
3461	* `check_ajax_referer`. WP reports that as "Cookie check
3462	* failed" on the next plugin Install / Activate / Update click,
3463	* which is misleading: the cookie is fine; the nonce is stale.
3464	*
3465	* Fix: watch jQuery's `heartbeat-tick`. If we ever see
3466	* `wp-auth-check: false` and then later see the same field flip
3467	* back to `true`, the user re-authed mid-session and every
3468	* cached nonce in this iframe is stale — reload so they
3469	* regenerate from the fresh session. The parent is nudged
3470	* first (`os-reauth-detected`) so its own recovery
3471	* (`src/auth-recovery/index.ts`: in-place nonce refresh + a
3472	* reload sweep over sibling iframes that haven't ticked yet)
3473	* starts immediately instead of waiting for the parent's
3474	* heartbeat schedule.
3475	*
3476	* If jQuery never loads on this page (rare — most admin screens
3477	* pull it for heartbeat already), this block is a no-op.
3478	* ----------------------------------------------------------------- */
3479	( function _wpdInstallAuthCheckRecovery() {
3480	var attached = false;
3481	var sawLoggedOut = false;
3482	function attach() {
3483	if ( attached \|\| ! window.jQuery ) {
3484	return;
3485	}
3486	attached = true;
3487	window.jQuery( document ).on( 'heartbeat-tick.osAuthRecover', function ( ev, data ) {
3488	if ( ! data \|\| typeof data !== 'object' \|\| ! ( 'wp-auth-check' in data ) ) {
3489	return;
3490	}
3491	if ( data[ 'wp-auth-check' ] === false ) {
3492	sawLoggedOut = true;
3493	return;
3494	}
3495	if ( sawLoggedOut && data[ 'wp-auth-check' ] === true ) {
3496	sawLoggedOut = false;
3497	// Tell the parent shell BEFORE we reload so it
3498	// doesn't have to wait for its own heartbeat
3499	// tick (up to 60s on an idle shell) to discover
3500	// the cookie is fresh. Parent runs its full
3501	// recovery path on receipt — overlay teardown,
3502	// iframe reload sweep, then a hard reload.
3503	try {
3504	if ( window.parent && window.parent !== window ) {
3505	window.parent.postMessage(
3506	{ type: 'os-reauth-detected' },
3507	window.location.origin
3508	);
3509	}
3510	} catch ( _err ) { /* parent gone */ }
3511	try { window.location.reload(); } catch ( _err ) { /* swallow */ }
3512	}
3513	} );
3514	}
3515	attach();
3516	if ( document.readyState === 'loading' ) {
3517	document.addEventListener( 'DOMContentLoaded', attach, { once: true } );
3518	}
3519	window.addEventListener( 'load', attach, { once: true } );
3520	} )();
3521
3522	/* -----------------------------------------------------------------
3523	* Shiny-update watcher (GH#296).
3524	*
3525	* Core's updates.js applies plugin/theme updates and deletes over
3526	* AJAX — no navigation, so the load-time payload emit above never
3527	* re-fires and the shell's update notifiers (admin-bar circle-arrows
3528	* count, dock Plugins badge) keep showing the pre-update numbers
3529	* until a hard refresh. Watch the jQuery events updates.js triggers
3530	* on `document` after each job and nudge the shell to spend one
3531	* `refreshMenu()` probe, whose payload carries fresh counts.
3532	*
3533	* Error events are included deliberately: `wp_ajax_update_plugin`
3534	* calls `wp_update_plugins()` up front, which can mutate the
3535	* update transient even when the upgrade itself fails.
3536	*
3537	* When updates.js is processing a queue (bulk-selected shiny
3538	* updates), per-job events fire while later jobs are still
3539	* pending — skip those and let the final job's event send the one
3540	* nudge. The shell debounces on its side too, so this is purely
3541	* an optimization, not a correctness gate.
3542	*
3543	* If jQuery never loads on this page this block is a no-op — and
3544	* so is updates.js, which requires it.
3545	* ----------------------------------------------------------------- */
3546	( function _wpdInstallShinyUpdateWatcher() {
3547	var attached = false;
3548	function notify() {
3549	try {
3550	var queue = window.wp && window.wp.updates && window.wp.updates.queue;
3551	if ( queue && queue.length > 0 ) {
3552	return;
3553	}
3554	} catch ( _err ) { /* queue introspection is best-effort */ }
3555	try {
3556	var shell = window.top \|\| window.parent;
3557	if ( shell && shell !== window ) {
3558	shell.postMessage(
3559	{ type: 'os-updates-changed' },
3560	window.location.origin
3561	);
3562	}
3563	} catch ( _err ) { /* shell gone or cross-origin */ }
3564	}
3565	function notifyPluginInstall() {
3566	// `wp-plugin-install-success` fires after an AJAX install on
3567	// plugin-install.php with no page navigation. The PHP
3568	// `upgrader_process_complete` hook records the change correctly,
3569	// but `openstation_content_changes_emit_footer` only runs on
3570	// chromeless page requests — admin-ajax.php is not in the
3571	// chromeless allowlist, so there's no in-band emit from that
3572	// request. The Heartbeat buffer will eventually deliver it, but
3573	// posting directly here lets the Installed tab refresh
3574	// immediately. The later Heartbeat tick will produce a second
3575	// broadcast; consumers handle no-op refreshes gracefully.
3576	try {
3577	var shell = window.top \|\| window.parent;
3578	if ( shell && shell !== window ) {
3579	shell.postMessage(
3580	{
3581	type: 'os-broadcast',
3582	topic: 'os.plugin.changed',
3583	payload: { source: 'chromeless-bridge', action: 'install' }
3584	},
3585	window.location.origin
3586	);
3587	}
3588	} catch ( _err ) { /* shell gone or cross-origin */ }
3589	}
3590	function attach() {
3591	if ( attached \|\| ! window.jQuery ) {
3592	return;
3593	}
3594	attached = true;
3595	window.jQuery( document ).on(
3596	[
3597	'wp-plugin-update-success.osUpdates',
3598	'wp-plugin-update-error.osUpdates',
3599	'wp-plugin-delete-success.osUpdates',
3600	'wp-theme-update-success.osUpdates',
3601	'wp-theme-update-error.osUpdates',
3602	'wp-theme-delete-success.osUpdates'
3603	].join( ' ' ),
3604	notify
3605	);
3606	window.jQuery( document ).on( 'wp-plugin-install-success.osUpdates', notifyPluginInstall );
3607	}
3608	attach();
3609	if ( document.readyState === 'loading' ) {
3610	document.addEventListener( 'DOMContentLoaded', attach, { once: true } );
3611	}
3612	window.addEventListener( 'load', attach, { once: true } );
3613	} )();
3614
3615	/*
3616	* Bridge-ready signal. Every listener installed by this script
3617	* is now wired; let the parent shell know so it can fire
3618	* `HOOKS.IFRAME_READY` and re-arm any connection handshakes
3619	* (`src/connection/index.ts#onIframeReady`) that arrived before
3620	* we were listening. Without this, every consumer of
3621	* `HOOKS.IFRAME_READY` (devtools replay, connection rearm)
3622	* stays silent for the lifetime of the iframe — documented
3623	* surface that never actually fires.
3624	*
3625	* Posted to the parent's own origin only. Wrapped in try/catch
3626	* because cross-origin parents (top-level admin opened outside
3627	* the shell) would throw on the postMessage and we don't want a
3628	* single failed dispatch to wedge anything else above.
3629	*/
3630	try {
3631	if ( window.parent && window.parent !== window ) {
3632	window.parent.postMessage(
3633	{ type: 'os-ready' },
3634	window.location.origin
3635	);
3636	}
3637	} catch ( _err ) { /* parent gone or cross-origin */ }
3638	} )();
3639	JS;
3640
3641	// On pages that don't carry a full payload, ship the lightweight
3642	// menu signature so the shell can detect an off-allowlist menu
3643	// change (e.g. a CPT registered via a settings tool) and refresh
3644	// only then. The full payload already embeds its own `menuSig`, so
3645	// there's no point recomputing it when one is being sent. GH#325.
3646	$menu_sig_json = 'null';
3647	if ( 'null' === $menu_payload_json ) {
3648	$menu_sig = openstation_menu_signature();
3649	if ( '' !== $menu_sig ) {
3650	$encoded_sig = wp_json_encode( $menu_sig );
3651	if ( false !== $encoded_sig ) {
3652	$menu_sig_json = $encoded_sig;
3653	}
3654	}
3655	}
3656
3657	// Declarative soft-reload rules for list screens that are NOT a
3658	// standard `edit.php?post_type=<type>` / `upload.php` /
3659	// `edit-comments.php` page (those are matched generically in the
3660	// bridge script). Rule shape:
3661	// - `topic` — the `os.<type>.changed` topic.
3662	// - `path` — wp-admin filename (`admin.php`).
3663	// - `query` — required query params (exact match).
3664	// - `queryAbsent` — params that must NOT be present.
3665	//
3666	// The default rule covers WooCommerce's HPOS orders list.
3667	// `queryAbsent: [ 'action' ]` is load-bearing: with `&action=edit`
3668	// the same path is the single-order EDITOR, which must keep the
3669	// single-edit exclusion (a soft reload would destroy unsaved
3670	// order state). Shipped unconditionally — when WooCommerce is
3671	// absent the URL never renders and the rule is inert.
3672	$soft_reload_rules = array(
3673	array(
3674	'topic' => 'os.shop_order.changed',
3675	'path' => 'admin.php',
3676	'query' => array( 'page' => 'wc-orders' ),
3677	'queryAbsent' => array( 'action' ),
3678	),
3679	);
3680
3681	/**
3682	* Filters the declarative soft-reload rules injected into every
3683	* chromeless iframe.
3684	*
3685	* Lets a plugin whose list screen lives on a custom admin URL
3686	* participate in cross-window refresh: pair a rule here with
3687	* `openstation_content_changes_record()` calls (or your own
3688	* `os.<type>.changed` broadcasts) on the publish side.
3689	*
3690	* @param array $soft_reload_rules Rule arrays with keys `topic`,
3691	* `path`, `query`, `queryAbsent`.
3692	*/
3693	$soft_reload_rules = (array) apply_filters( 'openstation_soft_reload_rules', $soft_reload_rules );
3694	$soft_reload_json = wp_json_encode( array_values( $soft_reload_rules ) );
3695	if ( ! $soft_reload_json ) {
3696	$soft_reload_json = '[]';
3697	}
3698
3699	// Substitute the server-built menu payload into the bridge
3700	// script. `wp_json_encode` guarantees safe JSON output — no need
3701	// for an additional escape pass. When the page isn't on our
3702	// menu-altering allowlist the placeholder resolves to `null` and
3703	// the bridge skips the postMessage.
3704	$js = str_replace( '/__OPENSTATION_MENU_PAYLOAD__/', $menu_payload_json, $js );
3705	$js = str_replace( '/__OPENSTATION_MENU_SIG__/', $menu_sig_json, $js );
3706	$js = str_replace( '/__OPENSTATION_CONTENT_IDENTITY__/', $content_identity_json, $js );
3707	$js = str_replace( '/__OPENSTATION_SOFT_RELOAD_EXTRAS__/', $soft_reload_json, $js );
3708
3709	wp_print_inline_script_tag( $js );
3710	}
3711	add_action( 'admin_footer', 'openstation_chromeless_bridge_script' );
3712