feat(globe): answer the clear and share actions through the globe actions store

The top-center bar is now GlobeActions.vue. The shell publishes whether a
clear is under way and answers the clear and share buttons through the
globe actions store, instead of binding listeners and writing attributes on
the buttons. A shell disposed mid-clear resets the busy state, so the next
shell's bar is not left busy. bindClearLayersControl stays exported and is
deprecated.

src/contextTabKeyboard.test.mjs

@@ -87,11 +87,13 @@ test('Context async action buttons remain focused while busy', () => {
   assert.ok(enable, 'Radio Enable button is missing');
   assert.doesNotMatch(enable, /disabled(?!=")|:disabled/);
   assert.match(enable, /:aria-busy=/);
-  assert.doesNotMatch(clear, /_clearSelectedLayersBtn\.disabled\s*=\s*true/);
   assert.match(clear, /this\.setClearBusy\(true\)/);
-  const control = readFileSync(new URL('./ui/clearLayersControl.js', import.meta.url), 'utf8');
-  assert.match(control, /button\.setAttribute\('aria-busy', String\(busy\)\)/);
-  assert.doesNotMatch(control, /button\.disabled\s*=/);
+  // The globe actions view marks the clear button busy, never disabled.
+  const globeActions = readFileSync(new URL('./ui/views/panels/GlobeActions.vue', import.meta.url), 'utf8');
+  const clearButton = globeActions.match(/<button id="clear-selected-layers"[^>]*>/)?.[0];
+  assert.ok(clearButton, 'Clear selected layers button is missing');
+  assert.doesNotMatch(clearButton, /disabled(?!=")|:disabled=/);
+  assert.match(clearButton, /:aria-busy=/);
 });
 
 test('Context header holds only its title and collapse control', () => {

src/sharelink.celestial.test.mjs

@@ -788,7 +788,8 @@ test('visual input listeners are revoked before asynchronous UI teardown', () =>
   assert.match(synchronous, /this\._displayBindings\.destroy\(\)/);
   assert.match(synchronous, /this\._visualSettings\.stop\(\)/);
   assert.match(synchronous, /this\._mapSourceControls\?\.destroy\(\)/);
-  assert.match(synchronous, /this\._clearLayersControl\?\.destroy\(\)/);
+  assert.match(synchronous, /globeActions\.detach\(this\._clearLayersToken\)/);
+  assert.match(synchronous, /globeActions\.detach\(this\._shareToken\)/);
   assert.match(synchronous, /this\._locationNavigation\.destroy\(\)/);
   assert.match(LocationNavigation.prototype.destroy.toString(), /this\._locationControls\?\.destroy\(\)/);
   assert.match(LocationNavigation.prototype.destroy.toString(), /this\._locationLookup\?\.destroy\(\)/);

src/ui/applicationShell.js

@@ -20,7 +20,6 @@ import { StreetLevelControls } from './streetLevelControls.js';
 import { RadioControls } from './radio.js';
 import { LocalSdrControls } from './localSdrControls.js';
 import { LocationNavigation } from './locationNavigation.js';
-import { bindClearLayersControl } from './layers.js';
 import { bindCameraOrientationControls } from './cameraOrientationControls.js';
 import { createMapSourceControls } from './mapSource.js';
 import { STYLES } from './effects.js';
@@ -63,6 +62,7 @@ import { useDisplayStore } from './stores/display.js';
 import { useLocaleStore } from './stores/locale.js';
 import { useLocationStore } from './stores/location.js';
 import { useCockpitStore } from './stores/cockpit.js';
+import { useGlobeActionsStore } from './stores/globeActions.js';
 
 /**
  * Central UI orchestrator for the God's Eye View application.
@@ -1009,7 +1009,8 @@ export class StyleManager extends ShellFacade {
           if (!this._disposed) this._showToast(message);
         },
         setClearBusy: (busy) => {
-          if (!this._disposed) this._clearLayersControl?.setBusy(busy);
+          if (!this._disposed)
+            useGlobeActionsStore(applicationPinia()).publishClearBusy(busy);
         },
       },
     });
@@ -1619,14 +1620,19 @@ export class StyleManager extends ShellFacade {
     return this._releaseFollowCamera({ preserveVesselSelection: false });
   }
 
-  /** Wire the top-center action that clears only manager-owned data layers. */
+  /**
+   * Answer the top-center action that clears only manager-owned data layers;
+   * the caller owns its transaction, and the button stays focusable while it
+   * runs.
+   */
   _initClearSelectedLayersButton() {
-    if (!this._clearSelectedLayersBtn) return;
-    this._clearLayersControl?.destroy();
-    this._clearLayersControl = bindClearLayersControl(
-      this._clearSelectedLayersBtn,
-      () => this.clearSelectedLayers(),
-    );
+    const store = useGlobeActionsStore(applicationPinia());
+    if (this._clearLayersToken) store.detach(this._clearLayersToken);
+    this._clearLayersToken = store.connect({
+      clear: () => {
+        if (!this._disposed) void this.clearSelectedLayers();
+      },
+    });
   }
 
   /** Wire Google Maps-style tilt and north-up camera actions. */
@@ -1654,29 +1660,35 @@ export class StyleManager extends ShellFacade {
    * @returns {void}
    */
   _initShareButton() {
-    this._lifetime.listen(this._shareBtn, 'click', async () => {
-      const share = this.services.shareLink;
-      let result;
-      if (typeof share === 'function') {
-        // A host's hook may return a plain value or throw; both are answers.
-        result = await Promise.resolve()
-          .then(() => {
-            const href = this.shareLinkManager.buildLink();
-            return href ? share(href) : false;
-          })
-          .catch(() => false);
-      } else {
-        result = (await this.shareLinkManager.copyLink()) ? 'copied' : false;
-      }
-      if (this._disposed || result === 'cancelled') return;
-      this._showToast(
-        result === 'shared'
-          ? t('Link shared')
-          : result === 'copied'
-            ? t('Link copied!')
-            : t('Copy failed'),
-      );
-    });
+    const store = useGlobeActionsStore(applicationPinia());
+    if (this._shareToken) store.detach(this._shareToken);
+    this._shareToken = store.connect({ share: () => this._share() });
+  }
+
+  /** Share or copy the current link, then say how it went. */
+  async _share() {
+    if (this._disposed) return;
+    const share = this.services.shareLink;
+    let result;
+    if (typeof share === 'function') {
+      // A host's hook may return a plain value or throw; both are answers.
+      result = await Promise.resolve()
+        .then(() => {
+          const href = this.shareLinkManager.buildLink();
+          return href ? share(href) : false;
+        })
+        .catch(() => false);
+    } else {
+      result = (await this.shareLinkManager.copyLink()) ? 'copied' : false;
+    }
+    if (this._disposed || result === 'cancelled') return;
+    this._showToast(
+      result === 'shared'
+        ? t('Link shared')
+        : result === 'copied'
+          ? t('Link copied!')
+          : t('Copy failed'),
+    );
   }
 
   // ── HUD Toggle ───────────────────────────────
@@ -1778,7 +1790,12 @@ export class StyleManager extends ShellFacade {
     useDisplayStore(applicationPinia()).connectMapSource(null);
     useDisplayStore(applicationPinia()).publishMapSource(null);
     this._cameraOrientationControls?.destroy();
-    this._clearLayersControl?.destroy();
+    const globeActions = useGlobeActionsStore(applicationPinia());
+    if (this._clearLayersToken) globeActions.detach(this._clearLayersToken);
+    if (this._shareToken) globeActions.detach(this._shareToken);
+    this._clearLayersToken = this._shareToken = null;
+    // A clear this shell leaves running must not keep the next shell's bar busy.
+    globeActions.publishClearBusy(null);
     this._cctvControls?.destroy();
     this.services?.streetLevelLayer?.attachNavigation?.(null);
     this._streetLevelControls?.destroy();

src/ui/clearLayersControl.js

@@ -1,6 +1,12 @@
 import { t } from '../i18n/index.js';
 
-/** Keep the clear action focusable while busy; the caller owns its transaction. */
+/**
+ * Keep the clear action focusable while busy; the caller owns its
+ * transaction. The globe actions view renders the button from the globe
+ * actions store now; this stays exported from `./ui/layers` for hosts that
+ * imported it.
+ * @deprecated
+ */
 export function bindClearLayersControl(button, clear) {
   let destroyed = false;
   const click = () => {

src/ui/globeActions.test.mjs

@@ -0,0 +1,69 @@
+// src/ui/globeActions.test.mjs — the top-center globe actions call their
+// owners through the globe actions store, and a clear under way keeps its
+// button focusable and marks it busy.
+import '../testSupport/registerDom.mjs';
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { createApp, nextTick } from 'vue';
+import { createPinia } from 'pinia';
+import { useGlobeActionsStore } from './stores/globeActions.js';
+import GlobeActions from './views/panels/GlobeActions.vue';
+
+function mount(t) {
+  document.body.replaceChildren();
+  const pinia = createPinia();
+  const store = useGlobeActionsStore(pinia);
+  const calls = [];
+  store.connect({
+    clear: () => calls.push('clear'),
+    share: () => calls.push('share'),
+  });
+  const app = createApp(GlobeActions).use(pinia);
+  app.mount(document.body.appendChild(document.createElement('div')));
+  t.after(() => app.unmount());
+  return { calls, store };
+}
+const $ = (id) => document.getElementById(id);
+
+test('the clear and share buttons call their owners', (t) => {
+  const { calls } = mount(t);
+  $('clear-selected-layers').click();
+  $('share-btn').click();
+  assert.deepEqual(calls, ['clear', 'share']);
+});
+
+test('a clear under way marks the button busy and keeps it focusable', async (t) => {
+  const { store } = mount(t);
+  const clear = $('clear-selected-layers');
+  assert.equal(clear.getAttribute('aria-label'), 'Clear selected data layers');
+  assert.equal(clear.hasAttribute('aria-busy'), false);
+  store.publishClearBusy(true);
+  await nextTick();
+  assert.equal(clear.getAttribute('aria-busy'), 'true');
+  assert.equal(clear.getAttribute('aria-disabled'), 'true');
+  assert.equal(
+    clear.getAttribute('aria-label'),
+    'Clearing selected data layers',
+  );
+  assert.equal(clear.disabled, false);
+  store.publishClearBusy(false);
+  await nextTick();
+  assert.equal(clear.getAttribute('aria-busy'), 'false');
+  assert.equal(clear.getAttribute('aria-label'), 'Clear selected data layers');
+  // A shell disposed mid-clear hands the next one a bar that is not busy.
+  store.publishClearBusy(true);
+  store.publishClearBusy(null);
+  await nextTick();
+  assert.equal(clear.hasAttribute('aria-busy'), false);
+  assert.equal(clear.hasAttribute('aria-disabled'), false);
+  assert.equal(clear.getAttribute('aria-label'), 'Clear selected data layers');
+});
+
+test('a detached owner no longer answers', (t) => {
+  const { calls, store } = mount(t);
+  const token = store.connect({ share: () => calls.push('newer share') });
+  $('share-btn').click();
+  store.detach(token);
+  $('share-btn').click();
+  assert.deepEqual(calls, ['newer share', 'share']);
+});

src/ui/shareButton.test.mjs

@@ -6,6 +6,8 @@ import { StyleManager } from './applicationShell.js';
 import { ShareLinkManager } from '../sharelink.js';
 import { parseSharePath } from '../share/shareLinkPath.js';
 import { decodeShareView } from '../share/viewCodec.js';
+import { applicationPinia } from './vueRuntime.js';
+import { useGlobeActionsStore } from './stores/globeActions.js';
 
 /** The decoded view of a `/share/<code>` link. */
 const sharedState = (href) =>
@@ -36,20 +38,19 @@ function installClipboard(writeText) {
   });
 }
 
-/** Wire the real share button handler onto a minimal shell; return a click. */
+/** The real share action on a minimal shell; return a click. */
 function shell({ manager, services = {} }) {
   const toasts = [];
-  let click;
   const owner = {
     services,
     shareLinkManager: manager,
-    _shareBtn: {},
     _disposed: false,
-    _lifetime: { listen: (_el, _type, handler) => (click = handler) },
     _showToast: (message) => toasts.push(message),
   };
-  StyleManager.prototype._initShareButton.call(owner);
-  return { toasts, click: () => click() };
+  return {
+    toasts,
+    click: () => StyleManager.prototype._share.call(owner),
+  };
 }
 
 test('buildLink is a /share link stamped with its creation time, without ?lang', () => {
@@ -158,3 +159,23 @@ test('a host hook that answers without a promise, or throws, still gets a toast'
     assert.deepEqual(toasts, [toast]);
   }
 });
+
+test('the shell answers the globe bar’s share and clear until it is disposed', async () => {
+  const calls = [];
+  const owner = {
+    _disposed: false,
+    _share: () => calls.push('share'),
+    clearSelectedLayers: async () => calls.push('clear'),
+  };
+  StyleManager.prototype._initShareButton.call(owner);
+  StyleManager.prototype._initClearSelectedLayersButton.call(owner);
+  const store = useGlobeActionsStore(applicationPinia());
+  store.act('share');
+  store.act('clear');
+  assert.deepEqual(calls, ['share', 'clear']);
+  store.detach(owner._shareToken);
+  store.detach(owner._clearLayersToken);
+  store.act('share');
+  store.act('clear');
+  assert.deepEqual(calls, ['share', 'clear']);
+});

src/ui/shellElements.js

@@ -63,10 +63,8 @@ export function readShellElements(document = globalThis.document) {
     _cctvSourceBadge: document.getElementById('cctv-source-badge'),
     _cctvMeta: document.getElementById('cctv-meta'),
     _cctvSummary: document.getElementById('cctv-summary'),
-    _shareBtn: document.getElementById('share-btn'),
     _tiltMapBtn: document.getElementById('tilt-map-view'),
     _northUpBtn: document.getElementById('north-up-view'),
-    _clearSelectedLayersBtn: document.getElementById('clear-selected-layers'),
     _resetGlobeBtn: document.getElementById('reset-globe-view'),
     _cockpitResetGlobeBtn: document.getElementById('cockpit-reset-globe'),
     _locationSearch: document.getElementById('location-search'),

src/ui/stores/globeActions.js

@@ -0,0 +1,22 @@
+import { defineStore } from 'pinia';
+import { ref } from 'vue';
+import { createOwners } from './owners.js';
+
+/**
+ * The top-center globe actions as their view renders them. The shell
+ * publishes whether a clear of the selected data layers is under way, and
+ * answers the clear and share buttons through act().
+ */
+export const useGlobeActionsStore = defineStore('gev-globe-actions', () => {
+  /** Whether a clear is under way; null until the shell first says. */
+  const clearBusy = ref(null);
+
+  /** @param {boolean | null} busy null when no shell answers the clear. */
+  function publishClearBusy(busy) {
+    clearBusy.value = busy == null ? null : Boolean(busy);
+  }
+
+  const { connect, detach, act } = createOwners();
+
+  return { clearBusy, publishClearBusy, connect, detach, act };
+});

src/ui/views/SceneChromeView.vue

@@ -16,6 +16,7 @@ import CelestialRing from './panels/CelestialRing.vue';
 import ScreenAnnotations from './panels/ScreenAnnotations.vue';
 import AwarenessDirection from './panels/AwarenessDirection.vue';
 import UiButton from '../kit/UiButton.vue';
+import GlobeActions from './panels/GlobeActions.vue';
 
 // The ACTIVE STYLE corner shows the style VisualSettings publishes.
 const { style } = storeToRefs(useDisplayStore());
@@ -79,24 +80,7 @@ const vToastText = {
   </div>
 
   <!-- Top-center camera and share actions -->
-  <nav id="top-center-actions" aria-label="Globe actions" data-i18n-aria-label>
-    <button id="clear-selected-layers" type="button" aria-label="Clear selected data layers" title="Turn off all selected data layers" data-i18n-aria-label data-i18n-title>
-      <span class="material-symbols-outlined" aria-hidden="true">layers_clear</span>
-    </button>
-    <button id="share-btn" type="button" aria-label="Copy share link" title="Copy share link" data-i18n-aria-label data-i18n-title>
-      <span class="share-icon" aria-hidden="true">&#x1F517;</span>
-    </button>
-    <button id="tilt-map-view" type="button" aria-label="Tilt map to oblique view" aria-pressed="false" title="Toggle straight-down and tilted map views" data-i18n-aria-label data-i18n-title>
-      <span class="material-symbols-outlined" aria-hidden="true">view_in_ar</span>
-    </button>
-    <button id="north-up-view" type="button" aria-label="Reset map to north up" title="Reset map bearing to north" data-i18n-aria-label data-i18n-title>
-      <span class="camera-compass-n" aria-hidden="true">N</span>
-      <span class="camera-compass-needle material-symbols-outlined" aria-hidden="true">navigation</span>
-    </button>
-    <button id="reset-globe-view" type="button" aria-label="Reset to full globe view" title="Reset camera and return to full globe view" data-i18n-aria-label data-i18n-title>
-      <span class="material-symbols-outlined" aria-hidden="true">public</span>
-    </button>
-  </nav>
+  <GlobeActions />
   <div id="global-loading-status" role="status" aria-live="polite" aria-atomic="true" :hidden="loading ? loading.hidden : true" :data-state="loading?.state ?? undefined">
     <SplitFlapText id="global-loading-label" :text="loading ? loading.label : t('LOADING LIVE DATA')" :stopped="!!loading?.stopped" />
     <span id="global-loading-detail">{{ loading ? loading.detail : '' }}</span>

src/ui/views/panels/GlobeActions.vue

@@ -0,0 +1,33 @@
+<script setup>
+import { storeToRefs } from 'pinia';
+import { t } from '../../../i18n/index.js';
+import { useGlobeActionsStore } from '../../stores/globeActions.js';
+
+// The top-center camera and share actions. The shell answers the clear and
+// share buttons through the store and publishes a clear under way, which
+// keeps the button focusable and marks it busy.
+const globe = useGlobeActionsStore();
+const { clearBusy } = storeToRefs(globe);
+const { act } = globe;
+</script>
+
+<template>
+<nav id="top-center-actions" aria-label="Globe actions" data-i18n-aria-label>
+  <button id="clear-selected-layers" type="button" :aria-label="clearBusy ? t('Clearing selected data layers') : t('Clear selected data layers')" :aria-disabled="clearBusy == null ? undefined : String(clearBusy)" :aria-busy="clearBusy == null ? undefined : String(clearBusy)" title="Turn off all selected data layers" data-i18n-title @click="act('clear')">
+    <span class="material-symbols-outlined" aria-hidden="true">layers_clear</span>
+  </button>
+  <button id="share-btn" type="button" aria-label="Copy share link" title="Copy share link" data-i18n-aria-label data-i18n-title @click="act('share')">
+    <span class="share-icon" aria-hidden="true">&#x1F517;</span>
+  </button>
+  <button id="tilt-map-view" type="button" aria-label="Tilt map to oblique view" aria-pressed="false" title="Toggle straight-down and tilted map views" data-i18n-aria-label data-i18n-title>
+    <span class="material-symbols-outlined" aria-hidden="true">view_in_ar</span>
+  </button>
+  <button id="north-up-view" type="button" aria-label="Reset map to north up" title="Reset map bearing to north" data-i18n-aria-label data-i18n-title>
+    <span class="camera-compass-n" aria-hidden="true">N</span>
+    <span class="camera-compass-needle material-symbols-outlined" aria-hidden="true">navigation</span>
+  </button>
+  <button id="reset-globe-view" type="button" aria-label="Reset to full globe view" title="Reset camera and return to full globe view" data-i18n-aria-label data-i18n-title>
+    <span class="material-symbols-outlined" aria-hidden="true">public</span>
+  </button>
+</nav>
+</template>