Refactor keymapping for resident_runner (#35762)

packages/flutter_tools/lib/src/resident_runner.dart

@@ -807,76 +807,96 @@ abstract class ResidentRunner {
 
   /// Returns [true] if the input has been handled by this function.
   Future<bool> _commonTerminalInputHandler(String character) async {
-    final String lower = character.toLowerCase();
 
     printStatus(''); // the key the user tapped might be on this line
-
-    if (lower == 'h' || lower == '?') {
-      // help
-      printHelp(details: true);
-      return true;
-    } else if (lower == 'w') {
+    switch(character) {
+      case 'a':
         if (supportsServiceProtocol) {
-        await _debugDumpApp();
+          await _debugToggleProfileWidgetBuilds();
           return true;
         }
-    } else if (lower == 't') {
-      if (supportsServiceProtocol) {
-        await _debugDumpRenderTree();
+        return false;
+      case 'd':
+      case 'D':
+        await detach();
         return true;
-      }
-    } else if (character == 'L') {
+      case 'h':
+      case 'H':
+      case '?':
+        // help
+        printHelp(details: true);
+        return true;
+      case 'i':
+      case 'I':
         if (supportsServiceProtocol) {
-        await _debugDumpLayerTree();
+          await _debugToggleWidgetInspector();
           return true;
         }
-    } else if (character == 'S') {
+        return false;
+      case 'L':
         if (supportsServiceProtocol) {
-        await _debugDumpSemanticsTreeInTraversalOrder();
+          await _debugDumpLayerTree();
           return true;
         }
-    } else if (character == 'U') {
-      if (supportsServiceProtocol) {
-        await _debugDumpSemanticsTreeInInverseHitTestOrder();
+        return false;
+      case 'o':
+      case 'O':
+        if (supportsServiceProtocol && isRunningDebug) {
+          await _debugTogglePlatform();
           return true;
         }
-    } else if (character == 'p') {
+        return false;
+      case 'p':
         if (supportsServiceProtocol && isRunningDebug) {
           await _debugToggleDebugPaintSizeEnabled();
           return true;
         }
-    } else if (character == 'P') {
+        return false;
+      case 'P':
         if (supportsServiceProtocol) {
           await _debugTogglePerformanceOverlayOverride();
-      }
-    } else if (lower == 'i') {
-      if (supportsServiceProtocol) {
-        await _debugToggleWidgetInspector();
           return true;
         }
-    } else if (character == 's') {
+        return false;
+      case 'q':
+      case 'Q':
+        // exit
+        await exit();
+        return true;
+      case 's':
         for (FlutterDevice device in flutterDevices) {
           if (device.device.supportsScreenshot)
             await _screenshot(device);
         }
         return true;
-    } else if (character == 'a') {
+      case 'S':
         if (supportsServiceProtocol) {
-        await _debugToggleProfileWidgetBuilds();
+          await _debugDumpSemanticsTreeInTraversalOrder();
+          return true;
         }
-    } else if (lower == 'o') {
-      if (supportsServiceProtocol && isRunningDebug) {
-        await _debugTogglePlatform();
+        return false;
+      case 't':
+      case 'T':
+        if (supportsServiceProtocol) {
+          await _debugDumpRenderTree();
           return true;
         }
-    } else if (lower == 'q') {
-      // exit
-      await exit();
+        return false;
+      case 'U':
+        if (supportsServiceProtocol) {
+          await _debugDumpSemanticsTreeInInverseHitTestOrder();
           return true;
-    } else if (lower == 'd') {
-      await detach();
+        }
+        return false;
+      case 'w':
+      case 'W':
+        if (supportsServiceProtocol) {
+          await _debugDumpApp();
           return true;
-    } else if (lower == 'z') {
+        }
+        return false;
+      case 'z':
+      case 'Z':
         await _debugToggleDebugCheckElevationsEnabled();
         return true;
     }

packages/flutter_tools/lib/src/vmservice.dart

@@ -1471,6 +1471,16 @@ class FlutterView extends ServiceObject {
         });
   }
 
+  Future<void> setSemanticsEnabled(bool enabled) async {
+    assert(enabled != null);
+    await owner.vmService.vm.invokeRpc<ServiceObject>('_flutter.setSemanticsEnabled',
+        params: <String, dynamic>{
+          'isolateId': _uiIsolate.id,
+          'viewId': id,
+          'enabled': enabled,
+        });
+  }
+
   bool get hasIsolate => _uiIsolate != null;
 
   Future<void> flushUIThreadTasks() async {