Initial commit — Meridian OS browser desktop demo

js/core/registry.js

@@ -0,0 +1,148 @@
+import MeridianWM from './wm.js';
+import State from './state.js';
+import Bus from './bus.js';
+
+const Registry = (() => {
+  const APPS = {};
+  let _launcherOpen = false;
+
+  function registerApp(def) {
+    if (def.id) {
+      APPS[def.id] = def;
+    }
+  }
+
+  function unregisterApp(id) {
+    delete APPS[id];
+  }
+
+  function getApp(id) {
+    return APPS[id] || null;
+  }
+
+  function launchApp(id) {
+    const def = APPS[id];
+    if (!def) {
+      console.warn(`App ${id} not registered`);
+      return;
+    }
+
+    const title = def.title || id;
+    const w = def.width || 640;
+    const h = def.height || 480;
+
+    // Create window with a render-callback; wm will mount container then call it.
+    const win = MeridianWM.openWindow({
+      app: id,
+      title,
+      w, h,
+      content: (container) => {
+        // Tag container for per-app CSS scoping
+        container.setAttribute('data-app', id);
+        const api = {
+          state: State,
+          bus: Bus,
+          close: () => MeridianWM.closeWindow(win && win.id),
+          setTitle: (t) => {
+            const el = document.getElementById(win && win.id);
+            if (el) {
+              const titleEl = el.querySelector('.m-window-title');
+              if (titleEl) titleEl.textContent = t;
+            }
+          },
+        };
+        try {
+          def.render(container, api);
+        } catch (e) {
+          container.textContent = `Error loading ${id}: ${e.message}`;
+          console.error(`[${id}] render error`, e);
+        }
+      },
+    });
+    closeLauncher();
+  }
+
+  function getRegisteredApps() {
+    return Object.values(APPS);
+  }
+
+  function toggleLauncher() {
+    _launcherOpen = !_launcherOpen;
+    const popover = document.getElementById('launcher-popover');
+    const btn = document.getElementById('launcher');
+    if (popover) {
+      if (_launcherOpen) {
+        renderLauncherApps(popover);
+        popover.classList.remove('hidden');
+      } else {
+        popover.classList.add('hidden');
+      }
+    }
+    if (btn) {
+      btn.classList.toggle('active', _launcherOpen);
+    }
+    return _launcherOpen;
+  }
+
+  function closeLauncher() {
+    _launcherOpen = false;
+    const popover = document.getElementById('launcher-popover');
+    const btn = document.getElementById('launcher');
+    if (popover) popover.classList.add('hidden');
+    if (btn) btn.classList.remove('active');
+  }
+
+  function renderLauncherApps(popover) {
+    const apps = getRegisteredApps();
+    popover.innerHTML = '';
+    if (apps.length === 0) {
+      popover.innerHTML = '<div style="padding:12px;text-align:center;color:var(--text-faint);font-size:13px;">No apps registered</div>';
+      return;
+    }
+    for (const app of apps) {
+      const btn = document.createElement('button');
+      btn.className = 'launcher-app-btn';
+      btn.setAttribute('aria-label', `Launch ${app.title || app.id}`);
+      btn.innerHTML = `
+        <div class="launcher-app-icon">${app.icon || '&#9670;'}</div>
+        <div class="launcher-app-label">${escapeHtml(app.title || app.id)}</div>
+      `;
+      btn.addEventListener('click', () => launchApp(app.id));
+      popover.appendChild(btn);
+    }
+  }
+
+  function escapeHtml(str) {
+    const div = document.createElement('div');
+    div.textContent = str;
+    return div.innerHTML;
+  }
+
+  function init() {
+    const btn = document.getElementById('launcher');
+    if (btn) {
+      btn.addEventListener('click', toggleLauncher);
+    }
+
+    // Close launcher when clicking elsewhere
+    document.addEventListener('mousedown', (e) => {
+      if (_launcherOpen && !e.target.closest('#launcher') && !e.target.closest('#launcher-popover')) {
+        closeLauncher();
+      }
+    });
+  }
+
+  return {
+    APPS,
+    registerApp,
+    unregisterApp,
+    getApp,
+    launchApp,
+    getRegisteredApps,
+    toggleLauncher,
+    init
+  };
+})();
+
+export default Registry;
+export { Registry };