Support static DevTools extensions (flutter#7612)

Author: kenzieschmoll

.gitignore

@@ -41,3 +41,6 @@ DEPENDENCIES.md
 
 # Ignore VS code workspaces that may be configured per-user
 *.code-workspace
+
+# Ignore devtools_options.yaml files under example.
+**/example/**/devtools_options.yaml

packages/devtools_app/integration_test/test/live_connection/devtools_extensions_test.dart

@@ -29,13 +29,30 @@ void main() {
     expect(testApp.vmServiceUri, isNotNull);
   });
 
+  setUp(() {
+    resetDevToolsExtensionEnabledStates();
+  });
+
   tearDown(() {
     resetDevToolsExtensionEnabledStates();
   });
 
   testWidgets('end to end extensions flow', (tester) async {
-    await pumpAndConnectDevTools(tester, testApp);
-    resetDevToolsExtensionEnabledStates();
+    await pumpDevTools(tester);
+
+    logStatus(
+      'verify static extensions are available before connecting to an app',
+    );
+    expect(extensionService.availableExtensions.value.length, 1);
+    expect(extensionService.visibleExtensions.value.length, 1);
+    await _verifyExtensionsSettingsMenu(
+      tester,
+      [
+        ExtensionEnabledState.none, // bar
+      ],
+    );
+
+    await connectToTestApp(tester, testApp);
 
     expect(extensionService.availableExtensions.value.length, 5);
     expect(extensionService.visibleExtensions.value.length, 5);

packages/devtools_app/lib/src/app.dart

@@ -139,26 +139,26 @@ class DevToolsAppState extends State<DevToolsApp> with AutoDisposeMixin {
 
     unawaited(ga.setupDimensions());
 
-    if (FeatureFlags.devToolsExtensions) {
-      addAutoDisposeListener(extensionService.availableExtensions, () {
-        setState(() {
-          _clearCachedRoutes();
-        });
-      });
-      addAutoDisposeListener(extensionService.visibleExtensions, () {
-        setState(() {
-          _clearCachedRoutes();
-        });
+    void clearRoutesAndSetState() {
+      setState(() {
+        _clearCachedRoutes();
       });
     }
 
+    if (FeatureFlags.devToolsExtensions) {
+      addAutoDisposeListener(
+        extensionService.availableExtensions,
+        clearRoutesAndSetState,
+      );
+      addAutoDisposeListener(
+        extensionService.visibleExtensions,
+        clearRoutesAndSetState,
+      );
+    }
+
     addAutoDisposeListener(
       serviceConnection.serviceManager.isolateManager.mainIsolate,
-      () {
-        setState(() {
-          _clearCachedRoutes();
-        });
-      },
+      clearRoutesAndSetState,
     );
 
     _isDarkThemeEnabledPreference = preferences.darkModeTheme.value;

packages/devtools_app/lib/src/extensions/extension_screen.dart

@@ -23,8 +23,7 @@ class ExtensionScreen extends Screen {
           id: extensionConfig.screenId,
           title: extensionConfig.name,
           icon: extensionConfig.icon,
-          // TODO(kenz): support static DevTools extensions.
-          requiresConnection: true,
+          requiresConnection: extensionConfig.requiresConnection,
         );
 
   final DevToolsExtensionConfig extensionConfig;