Added glance overlay and functionality

src/ZenGlanceManager.mjs

@@ -1,5 +1,57 @@
 
 {
+
+  class ZenGlanceManager extends ZenDOMOperatedFeature {
+    #currentBrowser = null;
+
+    init() {
+      ChromeUtils.defineLazyGetter(
+        this,
+        'overlay',
+        () => document.getElementById('zen-glance-overlay')
+      );
+
+      ChromeUtils.defineLazyGetter(
+        this,
+        'browserWrapper',
+        () => document.getElementById('zen-glance-browser-container')
+      );
+
+      Services.obs.addObserver(this, "zen-glance-open");
+    }
+
+    observe(subject, topic, data) {
+      this.openGlance(data);
+    }
+
+    openGlance(url) {
+      if (this.#currentBrowser) {
+        return;
+      }
+      const currentTab = gBrowser.selectedTab;
+      const overlayWrapper = currentTab.linkedBrowser.closest(".browserSidebarContainer");
+      overlayWrapper.appendChild(this.overlay);
+
+      window.requestAnimationFrame(() => {
+        this.overlay.removeAttribute("hidden");
+      });
+    }
+
+    closeGlance() {
+      this.#currentBrowser?.remove();
+      this.#currentBrowser = null;
+
+      this.overlay.setAttribute("hidden", true);
+    }
+
+    onLocationChange(_) {
+      this.closeGlance();
+    }
+  }
+
+  window.gZenGlanceManager = new ZenGlanceManager();
+
+
   function registerWindowActors() {
     // TODO: Only if the pref is enabled
     gZenActorsManager.addJSWindowActor("ZenGlance", {

src/actors/ZenGlanceParent.sys.mjs

@@ -12,13 +12,13 @@ export class ZenGlanceParent extends JSWindowActorParent {
         return Services.prefs.getIntPref('zen.glance.hold-duration', 500);
       }
       case 'ZenGlance:OpenGlance': {
-        this.openGlance();
+        this.openGlance(message.data.url);
         break;
       }
     }
   }
 
-  openGlance() {
+  openGlance(data) {
-    console.log('Opening glance');
+    Services.obs.notifyObservers(null, 'zen-glance-open', data);
   }
 }

src/actors/ZenThemeMarketplaceParent.sys.mjs

@@ -178,7 +178,6 @@ export class ZenThemeMarketplaceParent extends JSWindowActorParent {
 
   async removeTheme(themeId, triggerUpdate = true) {
     const themePath = PathUtils.join(this.themesRootPath, themeId);
-    console.info('ZenThemeMarketplaceParent: Removing theme ', themePath);
     await IOUtils.remove(themePath, { recursive: true, ignoreAbsent: true });
     if (triggerUpdate) {
       this.triggerThemeUpdate();