Flutter 1.22.0-12.2.pre engine cherrypicks

DEPS

@@ -34,7 +34,7 @@ vars = {
   # Dart is: https://github.com/dart-lang/sdk/blob/master/DEPS.
   # You can use //tools/dart/create_updated_flutter_deps.py to produce
   # updated revision list of existing dependencies.
-  'dart_revision': '52130c19ca593b185ea9cf72b26b1d02455551ef',
+  'dart_revision': '4215dca724fb80de592f51a6cdba51e7638d1723',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py

ci/licenses_golden/licenses_third_party

@@ -1,4 +1,4 @@
-Signature: a1bbcd05a2657658be7c5f38e0d366f4
+Signature: 52ed6d65d7e96daef749ee003a3463a0
 
 UNUSED LICENSES:
 

shell/platform/android/io/flutter/embedding/android/AndroidKeyProcessor.java

@@ -70,6 +70,15 @@ public AndroidKeyProcessor(
     this.keyEventChannel.setEventResponseHandler(eventResponder);
   }
 
+  /**
+   * Detaches the key processor from the Flutter engine.
+   *
+   * <p>The AndroidKeyProcessor instance should not be used after calling this.
+   */
+  public void destroy() {
+    keyEventChannel.setEventResponseHandler(null);
+  }
+
   /**
    * Called when a key up event is received by the {@link FlutterView}.
    *

shell/platform/android/io/flutter/embedding/android/FlutterView.java

@@ -992,6 +992,8 @@ public void detachFromFlutterEngine() {
     textInputPlugin.getInputMethodManager().restartInput(this);
     textInputPlugin.destroy();
 
+    androidKeyProcessor.destroy();
+
     if (mouseCursorPlugin != null) {
       mouseCursorPlugin.destroy();
     }

shell/platform/android/io/flutter/plugin/editing/TextInputPlugin.java

@@ -199,7 +199,17 @@ class ImeSyncDeferringInsetsCallback extends WindowInsetsAnimation.Callback
 
     private View view;
     private WindowInsets lastWindowInsets;
-    private boolean started = false;
+    // True when an animation that matches deferredInsetTypes is active.
+    //
+    // While this is active, this class will capture the initial window inset
+    // sent into lastWindowInsets by flagging needsSave to true, and will hold
+    // onto the intitial inset until the animation is completed, when it will
+    // re-dispatch the inset change.
+    private boolean animating = false;
+    // When an animation begins, android sends a WindowInset with the final
+    // state of the animation. When needsSave is true, we know to capture this
+    // initial WindowInset.
+    private boolean needsSave = false;
 
     ImeSyncDeferringInsetsCallback(
         @NonNull View view, int overlayInsetTypes, int deferredInsetTypes) {
@@ -212,34 +222,38 @@ class ImeSyncDeferringInsetsCallback extends WindowInsetsAnimation.Callback
     @Override
     public WindowInsets onApplyWindowInsets(View view, WindowInsets windowInsets) {
       this.view = view;
-      if (started) {
+      if (needsSave) {
+        // Store the view and insets for us in onEnd() below. This captured inset
+        // is not part of the animation and instead, represents the final state
+        // of the inset after the animation is completed. Thus, we defer the processing
+        // of this WindowInset until the animation completes.
+        lastWindowInsets = windowInsets;
+        needsSave = false;
+      }
+      if (animating) {
         // While animation is running, we consume the insets to prevent disrupting
         // the animation, which skips this implementation and calls the view's
         // onApplyWindowInsets directly to avoid being consumed here.
         return WindowInsets.CONSUMED;
       }
 
-      // Store the view and insets for us in onEnd() below
-      lastWindowInsets = windowInsets;
-
       // If no animation is happening, pass the insets on to the view's own
       // inset handling.
       return view.onApplyWindowInsets(windowInsets);
     }
 
     @Override
-    public WindowInsetsAnimation.Bounds onStart(
-        WindowInsetsAnimation animation, WindowInsetsAnimation.Bounds bounds) {
+    public void onPrepare(WindowInsetsAnimation animation) {
       if ((animation.getTypeMask() & deferredInsetTypes) != 0) {
-        started = true;
+        animating = true;
+        needsSave = true;
       }
-      return bounds;
     }
 
     @Override
     public WindowInsets onProgress(
         WindowInsets insets, List<WindowInsetsAnimation> runningAnimations) {
-      if (!started) {
+      if (!animating || needsSave) {
         return insets;
       }
       boolean matching = false;
@@ -280,10 +294,10 @@ public WindowInsets onProgress(
 
     @Override
     public void onEnd(WindowInsetsAnimation animation) {
-      if (started && (animation.getTypeMask() & deferredInsetTypes) != 0) {
+      if (animating && (animation.getTypeMask() & deferredInsetTypes) != 0) {
         // If we deferred the IME insets and an IME animation has finished, we need to reset
         // the flags
-        started = false;
+        animating = false;
 
         // And finally dispatch the deferred insets to the view now.
         // Ideally we would just call view.requestApplyInsets() and let the normal dispatch

shell/platform/android/test/io/flutter/embedding/android/AndroidKeyProcessorTest.java

@@ -2,7 +2,9 @@
 
 import static junit.framework.TestCase.assertEquals;
 import static org.mockito.Mockito.any;
+import static org.mockito.Mockito.isNull;
 import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.notNull;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
@@ -56,6 +58,22 @@ public void respondsTrueWhenHandlingNewEvents() {
     verify(fakeView, times(0)).dispatchKeyEvent(any(KeyEvent.class));
   }
 
+  @Test
+  public void destroyTest() {
+    FlutterEngine flutterEngine = mockFlutterEngine();
+    KeyEventChannel fakeKeyEventChannel = flutterEngine.getKeyEventChannel();
+    View fakeView = mock(View.class);
+
+    AndroidKeyProcessor processor =
+        new AndroidKeyProcessor(fakeView, fakeKeyEventChannel, mock(TextInputPlugin.class));
+
+    verify(fakeKeyEventChannel, times(1))
+        .setEventResponseHandler(notNull(KeyEventChannel.EventResponseHandler.class));
+    processor.destroy();
+    verify(fakeKeyEventChannel, times(1))
+        .setEventResponseHandler(isNull(KeyEventChannel.EventResponseHandler.class));
+  }
+
   public void synthesizesEventsWhenKeyDownNotHandled() {
     FlutterEngine flutterEngine = mockFlutterEngine();
     KeyEventChannel fakeKeyEventChannel = flutterEngine.getKeyEventChannel();

shell/platform/android/test/io/flutter/plugin/editing/TextInputPluginTest.java

@@ -669,6 +669,8 @@ public void ime_windowInsetsSync() {
     WindowInsets.Builder builder = new WindowInsets.Builder();
     WindowInsets noneInsets = builder.build();
 
+    // imeInsets0, 1, and 2 contain unique IME bottom insets, and are used
+    // to distinguish which insets were sent at each stage.
     builder.setInsets(WindowInsets.Type.ime(), Insets.of(0, 0, 0, 100));
     builder.setInsets(WindowInsets.Type.navigationBars(), Insets.of(10, 10, 10, 40));
     WindowInsets imeInsets0 = builder.build();
@@ -677,6 +679,10 @@ public void ime_windowInsetsSync() {
     builder.setInsets(WindowInsets.Type.navigationBars(), Insets.of(10, 10, 10, 40));
     WindowInsets imeInsets1 = builder.build();
 
+    builder.setInsets(WindowInsets.Type.ime(), Insets.of(0, 0, 0, 50));
+    builder.setInsets(WindowInsets.Type.navigationBars(), Insets.of(10, 10, 10, 40));
+    WindowInsets imeInsets2 = builder.build();
+
     builder.setInsets(WindowInsets.Type.ime(), Insets.of(0, 0, 0, 200));
     builder.setInsets(WindowInsets.Type.navigationBars(), Insets.of(10, 10, 10, 0));
     WindowInsets deferredInsets = builder.build();
@@ -696,6 +702,8 @@ public void ime_windowInsetsSync() {
     imeSyncCallback.onPrepare(animation);
     imeSyncCallback.onApplyWindowInsets(testView, deferredInsets);
     imeSyncCallback.onStart(animation, null);
+    // Only the final state call is saved, extra calls are passed on.
+    imeSyncCallback.onApplyWindowInsets(testView, imeInsets2);
 
     verify(flutterRenderer).setViewportMetrics(viewportMetricsCaptor.capture());
     // No change, as deferredInset is stored to be passed in onEnd()
@@ -723,7 +731,7 @@ public void ime_windowInsetsSync() {
     imeSyncCallback.onEnd(animation);
 
     verify(flutterRenderer).setViewportMetrics(viewportMetricsCaptor.capture());
-    // Values should be of deferredInsets
+    // Values should be of deferredInsets, not imeInsets2
     assertEquals(0, viewportMetricsCaptor.getValue().paddingBottom);
     assertEquals(10, viewportMetricsCaptor.getValue().paddingTop);
     assertEquals(200, viewportMetricsCaptor.getValue().viewInsetBottom);

shell/platform/darwin/ios/framework/Source/FlutterPlatformViews_Internal.mm

@@ -90,6 +90,15 @@ - (instancetype)initWithFrame:(CGRect)frame {
   return self;
 }
 
+// In some scenarios, when we add this view as a maskView of the ChildClippingView, iOS added
+// this view as a subview of the ChildClippingView.
+// This results this view blocking touch events on the ChildClippingView.
+// So we should always ignore any touch events sent to this view.
+// See https://github.com/flutter/flutter/issues/66044
+- (BOOL)pointInside:(CGPoint)point withEvent:(UIEvent*)event {
+  return NO;
+}
+
 - (void)drawRect:(CGRect)rect {
   CGContextRef context = UIGraphicsGetCurrentContext();
   CGContextSaveGState(context);

shell/platform/darwin/ios/framework/Source/FlutterViewController.mm

@@ -326,7 +326,11 @@ - (void)pushRoute:(NSString*)route {
   auto placeholder = [[[UIView alloc] init] autorelease];
 
   placeholder.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
-  placeholder.backgroundColor = UIColor.whiteColor;
+  if (@available(iOS 13.0, *)) {
+    placeholder.backgroundColor = UIColor.systemBackgroundColor;
+  } else {
+    placeholder.backgroundColor = UIColor.whiteColor;
+  }
   placeholder.autoresizesSubviews = YES;
 
   // Only add the label when we know we have failed to enable tracing (and it was necessary).
@@ -339,9 +343,9 @@ - (void)pushRoute:(NSString*)route {
     messageLabel.autoresizingMask =
         UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
     messageLabel.text =
-        @"In iOS 14+, Flutter application in debug mode can only be launched from Flutter tooling, "
+        @"In iOS 14+, debug mode Flutter apps can only be launched from Flutter tooling, "
         @"IDEs with Flutter plugins or from Xcode.\n\nAlternatively, build in profile or release "
-        @"modes to enable re-launching from the home screen.";
+        @"modes to enable launching from the home screen.";
     [placeholder addSubview:messageLabel];
   }
 

testing/scenario_app/ios/Scenarios/Scenarios/AppDelegate.m

@@ -23,7 +23,9 @@ @implementation AppDelegate
 - (BOOL)application:(UIApplication*)application
     didFinishLaunchingWithOptions:(NSDictionary*)launchOptions {
   self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
-
+  if ([[[NSProcessInfo processInfo] arguments] containsObject:@"--maskview-blocking"]) {
+    self.window.tintColor = UIColor.systemPinkColor;
+  }
   NSDictionary<NSString*, NSString*>* launchArgsMap = @{
     // The Platform view golden test args should match `PlatformViewGoldenTestManager`.
     @"--locale-initialization" : @"locale_initialization",
@@ -58,7 +60,6 @@ - (BOOL)application:(UIApplication*)application
           *stop = YES;
         }
       }];
-
   if (flutterViewControllerTestName) {
     [self setupFlutterViewControllerTest:flutterViewControllerTestName];
   } else if ([[[NSProcessInfo processInfo] arguments] containsObject:@"--screen-before-flutter"]) {

testing/scenario_app/ios/Scenarios/ScenariosUITests/PlatformViewGestureRecognizerTests.m

@@ -110,9 +110,54 @@ - (void)testAccept {
       [[XCTNSPredicateExpectation alloc] initWithPredicate:predicate object:platformView];
 
   [platformView tap];
+
+  [self waitForExpectations:@[ expection ] timeout:kSecondsToWaitForPlatformView];
+  XCTAssertEqualObjects(platformView.label,
+                        @"-gestureTouchesBegan-gestureTouchesEnded-platformViewTapped");
+}
+
+- (void)testGestureWithMaskViewBlockingPlatformView {
+  XCUIApplication* app = [[XCUIApplication alloc] init];
+  app.launchArguments = @[ @"--gesture-accept", @"--maskview-blocking" ];
+  [app launch];
+
+  NSPredicate* predicateToFindPlatformView =
+      [NSPredicate predicateWithBlock:^BOOL(id _Nullable evaluatedObject,
+                                            NSDictionary<NSString*, id>* _Nullable bindings) {
+        XCUIElement* element = evaluatedObject;
+        return [element.identifier hasPrefix:@"platform_view"];
+      }];
+  XCUIElement* platformView = [app.textViews elementMatchingPredicate:predicateToFindPlatformView];
+  if (![platformView waitForExistenceWithTimeout:kSecondsToWaitForPlatformView]) {
+    NSLog(@"%@", app.debugDescription);
+    XCTFail(@"Failed due to not able to find any platformView with %@ seconds",
+            @(kSecondsToWaitForPlatformView));
+  }
+
+  XCTAssertNotNil(platformView);
+  XCTAssertEqualObjects(platformView.label, @"");
+
+  NSPredicate* predicate = [NSPredicate
+      predicateWithFormat:@"label == %@",
+                          @"-gestureTouchesBegan-gestureTouchesEnded-platformViewTapped"];
+  XCTNSPredicateExpectation* expection =
+      [[XCTNSPredicateExpectation alloc] initWithPredicate:predicate object:platformView];
+
+  XCUICoordinate* coordinate =
+      [self getNormalizedCoordinate:app
+                              point:CGVectorMake(platformView.frame.origin.x + 10,
+                                                 platformView.frame.origin.y + 10)];
+  [coordinate tap];
+
   [self waitForExpectations:@[ expection ] timeout:kSecondsToWaitForPlatformView];
   XCTAssertEqualObjects(platformView.label,
                         @"-gestureTouchesBegan-gestureTouchesEnded-platformViewTapped");
 }
 
+- (XCUICoordinate*)getNormalizedCoordinate:(XCUIApplication*)app point:(CGVector)vector {
+  XCUICoordinate* appZero = [app coordinateWithNormalizedOffset:CGVectorMake(0, 0)];
+  XCUICoordinate* coordinate = [appZero coordinateWithOffset:vector];
+  return coordinate;
+}
+
 @end

testing/scenario_app/lib/src/platform_view.dart

@@ -336,9 +336,9 @@ class MultiPlatformViewBackgroundForegroundScenario extends Scenario with _BaseP
   MultiPlatformViewBackgroundForegroundScenario(Window window, {this.firstId, this.secondId})
       : assert(window != null),
         super(window) {
+    _nextFrame = _firstFrame;
     createPlatformView(window, 'platform view 1', firstId);
     createPlatformView(window, 'platform view 2', secondId);
-    _nextFrame = _firstFrame;
   }
 
   /// The platform view identifier to use for the first platform view.
@@ -532,6 +532,8 @@ class PlatformViewForTouchIOSScenario extends Scenario
 
   int _viewId;
   bool _accept;
+
+  VoidCallback _nextFrame;
   /// Creates the PlatformView scenario.
   ///
   /// The [window] parameter must not be null.
@@ -545,14 +547,24 @@ class PlatformViewForTouchIOSScenario extends Scenario
     } else {
       createPlatformView(window, text, id);
     }
+    _nextFrame = _firstFrame;
   }
 
   @override
   void onBeginFrame(Duration duration) {
-    final SceneBuilder builder = SceneBuilder();
+    _nextFrame();
+  }
 
-    builder.pushOffset(0, 0);
-    finishBuilderByAddingPlatformViewAndPicture(builder, _viewId);
+  @override
+  void onDrawFrame() {
+    // Some iOS gesture recognizers bugs are introduced in the second frame (with a different platform view rect) after laying out the platform view.
+    // So in this test, we load 2 frames to ensure that we cover those cases.
+    // See https://github.com/flutter/flutter/issues/66044
+    if (_nextFrame == _firstFrame) {
+      _nextFrame = _secondFrame;
+      window.scheduleFrame();
+    }
+    super.onDrawFrame();
   }
 
   @override
@@ -585,6 +597,20 @@ class PlatformViewForTouchIOSScenario extends Scenario
     }
 
   }
+
+  void _firstFrame() {
+    final SceneBuilder builder = SceneBuilder();
+
+    builder.pushOffset(0, 0);
+    finishBuilderByAddingPlatformViewAndPicture(builder, _viewId);
+  }
+
+  void _secondFrame() {
+    final SceneBuilder builder = SceneBuilder();
+
+    builder.pushOffset(5, 5);
+    finishBuilderByAddingPlatformViewAndPicture(builder, _viewId);
+  }
 }
 
 mixin _BasePlatformViewScenarioMixin on Scenario {