Revert "[Android] Return keyboard pressed state" (#42616)

Reverts #41695 due to internal bug report b/284945818.

cc @bleroux let's investigate some day.

ci/licenses_golden/licenses_flutter

@@ -2382,7 +2382,6 @@ ORIGIN: ../../../flutter/shell/platform/android/io/flutter/embedding/engine/rend
 ORIGIN: ../../../flutter/shell/platform/android/io/flutter/embedding/engine/renderer/SurfaceTextureWrapper.java + ../../../flutter/LICENSE
 ORIGIN: ../../../flutter/shell/platform/android/io/flutter/embedding/engine/systemchannels/DeferredComponentChannel.java + ../../../flutter/LICENSE
 ORIGIN: ../../../flutter/shell/platform/android/io/flutter/embedding/engine/systemchannels/KeyEventChannel.java + ../../../flutter/LICENSE
-ORIGIN: ../../../flutter/shell/platform/android/io/flutter/embedding/engine/systemchannels/KeyboardChannel.java + ../../../flutter/LICENSE
 ORIGIN: ../../../flutter/shell/platform/android/io/flutter/embedding/engine/systemchannels/LifecycleChannel.java + ../../../flutter/LICENSE
 ORIGIN: ../../../flutter/shell/platform/android/io/flutter/embedding/engine/systemchannels/LocalizationChannel.java + ../../../flutter/LICENSE
 ORIGIN: ../../../flutter/shell/platform/android/io/flutter/embedding/engine/systemchannels/MouseCursorChannel.java + ../../../flutter/LICENSE
@@ -2416,7 +2415,6 @@ ORIGIN: ../../../flutter/shell/platform/android/io/flutter/plugin/editing/Listen
 ORIGIN: ../../../flutter/shell/platform/android/io/flutter/plugin/editing/SpellCheckPlugin.java + ../../../flutter/LICENSE
 ORIGIN: ../../../flutter/shell/platform/android/io/flutter/plugin/editing/TextEditingDelta.java + ../../../flutter/LICENSE
 ORIGIN: ../../../flutter/shell/platform/android/io/flutter/plugin/editing/TextInputPlugin.java + ../../../flutter/LICENSE
-ORIGIN: ../../../flutter/shell/platform/android/io/flutter/plugin/keyboard/KeyboardPlugin.java + ../../../flutter/LICENSE
 ORIGIN: ../../../flutter/shell/platform/android/io/flutter/plugin/localization/LocalizationPlugin.java + ../../../flutter/LICENSE
 ORIGIN: ../../../flutter/shell/platform/android/io/flutter/plugin/mouse/MouseCursorPlugin.java + ../../../flutter/LICENSE
 ORIGIN: ../../../flutter/shell/platform/android/io/flutter/plugin/platform/AccessibilityEventsDelegate.java + ../../../flutter/LICENSE
@@ -5065,7 +5063,6 @@ FILE: ../../../flutter/shell/platform/android/io/flutter/embedding/engine/render
 FILE: ../../../flutter/shell/platform/android/io/flutter/embedding/engine/systemchannels/AccessibilityChannel.java
 FILE: ../../../flutter/shell/platform/android/io/flutter/embedding/engine/systemchannels/DeferredComponentChannel.java
 FILE: ../../../flutter/shell/platform/android/io/flutter/embedding/engine/systemchannels/KeyEventChannel.java
-FILE: ../../../flutter/shell/platform/android/io/flutter/embedding/engine/systemchannels/KeyboardChannel.java
 FILE: ../../../flutter/shell/platform/android/io/flutter/embedding/engine/systemchannels/LifecycleChannel.java
 FILE: ../../../flutter/shell/platform/android/io/flutter/embedding/engine/systemchannels/LocalizationChannel.java
 FILE: ../../../flutter/shell/platform/android/io/flutter/embedding/engine/systemchannels/MouseCursorChannel.java
@@ -5102,7 +5099,6 @@ FILE: ../../../flutter/shell/platform/android/io/flutter/plugin/editing/Listenab
 FILE: ../../../flutter/shell/platform/android/io/flutter/plugin/editing/SpellCheckPlugin.java
 FILE: ../../../flutter/shell/platform/android/io/flutter/plugin/editing/TextEditingDelta.java
 FILE: ../../../flutter/shell/platform/android/io/flutter/plugin/editing/TextInputPlugin.java
-FILE: ../../../flutter/shell/platform/android/io/flutter/plugin/keyboard/KeyboardPlugin.java
 FILE: ../../../flutter/shell/platform/android/io/flutter/plugin/localization/LocalizationPlugin.java
 FILE: ../../../flutter/shell/platform/android/io/flutter/plugin/mouse/MouseCursorPlugin.java
 FILE: ../../../flutter/shell/platform/android/io/flutter/plugin/platform/AccessibilityEventsDelegate.java

shell/platform/android/BUILD.gn

@@ -250,7 +250,6 @@ android_java_sources = [
   "io/flutter/embedding/engine/systemchannels/AccessibilityChannel.java",
   "io/flutter/embedding/engine/systemchannels/DeferredComponentChannel.java",
   "io/flutter/embedding/engine/systemchannels/KeyEventChannel.java",
-  "io/flutter/embedding/engine/systemchannels/KeyboardChannel.java",
   "io/flutter/embedding/engine/systemchannels/LifecycleChannel.java",
   "io/flutter/embedding/engine/systemchannels/LocalizationChannel.java",
   "io/flutter/embedding/engine/systemchannels/MouseCursorChannel.java",
@@ -287,7 +286,6 @@ android_java_sources = [
   "io/flutter/plugin/editing/SpellCheckPlugin.java",
   "io/flutter/plugin/editing/TextEditingDelta.java",
   "io/flutter/plugin/editing/TextInputPlugin.java",
-  "io/flutter/plugin/keyboard/KeyboardPlugin.java",
   "io/flutter/plugin/localization/LocalizationPlugin.java",
   "io/flutter/plugin/mouse/MouseCursorPlugin.java",
   "io/flutter/plugin/platform/AccessibilityEventsDelegate.java",

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

@@ -62,7 +62,6 @@
 import io.flutter.plugin.common.BinaryMessenger;
 import io.flutter.plugin.editing.SpellCheckPlugin;
 import io.flutter.plugin.editing.TextInputPlugin;
-import io.flutter.plugin.keyboard.KeyboardPlugin;
 import io.flutter.plugin.localization.LocalizationPlugin;
 import io.flutter.plugin.mouse.MouseCursorPlugin;
 import io.flutter.plugin.platform.PlatformViewsController;
@@ -131,7 +130,6 @@ public class FlutterView extends FrameLayout
   @Nullable private MouseCursorPlugin mouseCursorPlugin;
   @Nullable private TextInputPlugin textInputPlugin;
   @Nullable private SpellCheckPlugin spellCheckPlugin;
-  @Nullable private KeyboardPlugin keyboardPlugin;
   @Nullable private LocalizationPlugin localizationPlugin;
   @Nullable private KeyboardManager keyboardManager;
   @Nullable private AndroidTouchProcessor androidTouchProcessor;
@@ -1179,8 +1177,6 @@ public void attachToFlutterEngine(@NonNull FlutterEngine flutterEngine) {
     localizationPlugin = this.flutterEngine.getLocalizationPlugin();
 
     keyboardManager = new KeyboardManager(this);
-    keyboardPlugin = new KeyboardPlugin(keyboardManager, this.flutterEngine.getKeyboardChannel());
-
     androidTouchProcessor =
         new AndroidTouchProcessor(this.flutterEngine.getRenderer(), /*trackMotionEvents=*/ false);
     accessibilityBridge =
@@ -1277,12 +1273,10 @@ public void detachFromFlutterEngine() {
     if (spellCheckPlugin != null) {
       spellCheckPlugin.destroy();
     }
+
     if (mouseCursorPlugin != null) {
       mouseCursorPlugin.destroy();
     }
-    if (keyboardPlugin != null) {
-      keyboardPlugin.destroy();
-    }
 
     // Instruct our FlutterRenderer that we are no longer interested in being its RenderSurface.
     FlutterRenderer flutterRenderer = flutterEngine.getRenderer();

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

@@ -11,9 +11,7 @@
 import io.flutter.embedding.android.KeyboardMap.TogglingGoal;
 import io.flutter.plugin.common.BinaryMessenger;
 import java.util.ArrayList;
-import java.util.Collections;
 import java.util.HashMap;
-import java.util.Map;
 
 /**
  * A {@link KeyboardManager.Responder} of {@link KeyboardManager} that handles events by sending
@@ -407,14 +405,4 @@ public void handleEvent(
       onKeyEventHandledCallback.onKeyEventHandled(true);
     }
   }
-
-  /**
-   * Returns an unmodifiable view of the pressed state.
-   *
-   * @return A map whose keys are physical keyboard key IDs and values are the corresponding logical
-   *     keyboard key IDs.
-   */
-  public Map<Long, Long> getPressedState() {
-    return Collections.unmodifiableMap(pressingRecords);
-  }
 }

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

@@ -13,7 +13,6 @@
 import io.flutter.plugin.editing.InputConnectionAdaptor;
 import io.flutter.plugin.editing.TextInputPlugin;
 import java.util.HashSet;
-import java.util.Map;
 
 /**
  * Processes keyboard events and cooperate with {@link TextInputPlugin}.
@@ -253,15 +252,4 @@ private void onUnhandled(@NonNull KeyEvent keyEvent) {
       Log.w(TAG, "A redispatched key event was consumed before reaching KeyboardManager");
     }
   }
-
-  /**
-   * Returns an unmodifiable view of the pressed state.
-   *
-   * @return A map whose keys are physical keyboard key IDs and values are the corresponding logical
-   *     keyboard key IDs.
-   */
-  public Map<Long, Long> getPressedState() {
-    KeyEmbedderResponder embedderResponder = (KeyEmbedderResponder) responders[0];
-    return embedderResponder.getPressedState();
-  }
 }

shell/platform/android/io/flutter/embedding/engine/FlutterEngine.java

@@ -26,7 +26,6 @@
 import io.flutter.embedding.engine.renderer.RenderSurface;
 import io.flutter.embedding.engine.systemchannels.AccessibilityChannel;
 import io.flutter.embedding.engine.systemchannels.DeferredComponentChannel;
-import io.flutter.embedding.engine.systemchannels.KeyboardChannel;
 import io.flutter.embedding.engine.systemchannels.LifecycleChannel;
 import io.flutter.embedding.engine.systemchannels.LocalizationChannel;
 import io.flutter.embedding.engine.systemchannels.MouseCursorChannel;
@@ -90,7 +89,6 @@ public class FlutterEngine implements ViewUtils.DisplayUpdater {
   // System channels.
   @NonNull private final AccessibilityChannel accessibilityChannel;
   @NonNull private final DeferredComponentChannel deferredComponentChannel;
-  @NonNull private final KeyboardChannel keyboardChannel;
   @NonNull private final LifecycleChannel lifecycleChannel;
   @NonNull private final LocalizationChannel localizationChannel;
   @NonNull private final MouseCursorChannel mouseCursorChannel;
@@ -326,7 +324,6 @@ public FlutterEngine(
 
     accessibilityChannel = new AccessibilityChannel(dartExecutor, flutterJNI);
     deferredComponentChannel = new DeferredComponentChannel(dartExecutor);
-    keyboardChannel = new KeyboardChannel(dartExecutor);
     lifecycleChannel = new LifecycleChannel(dartExecutor);
     localizationChannel = new LocalizationChannel(dartExecutor);
     mouseCursorChannel = new MouseCursorChannel(dartExecutor);
@@ -519,12 +516,6 @@ public AccessibilityChannel getAccessibilityChannel() {
     return accessibilityChannel;
   }
 
-  /** System channel that allows querying the keyboard pressed state. */
-  @NonNull
-  public KeyboardChannel getKeyboardChannel() {
-    return keyboardChannel;
-  }
-
   /** System channel that sends Android lifecycle events to Flutter. */
   @NonNull
   public LifecycleChannel getLifecycleChannel() {

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

@@ -48,7 +48,6 @@
 import io.flutter.embedding.engine.renderer.FlutterRenderer;
 import io.flutter.embedding.engine.renderer.SurfaceTextureWrapper;
 import io.flutter.embedding.engine.systemchannels.AccessibilityChannel;
-import io.flutter.embedding.engine.systemchannels.KeyboardChannel;
 import io.flutter.embedding.engine.systemchannels.LifecycleChannel;
 import io.flutter.embedding.engine.systemchannels.LocalizationChannel;
 import io.flutter.embedding.engine.systemchannels.MouseCursorChannel;
@@ -60,7 +59,6 @@
 import io.flutter.plugin.common.ActivityLifecycleListener;
 import io.flutter.plugin.common.BinaryMessenger;
 import io.flutter.plugin.editing.TextInputPlugin;
-import io.flutter.plugin.keyboard.KeyboardPlugin;
 import io.flutter.plugin.localization.LocalizationPlugin;
 import io.flutter.plugin.mouse.MouseCursorPlugin;
 import io.flutter.plugin.platform.PlatformPlugin;
@@ -126,14 +124,12 @@ static final class ViewportMetrics {
   private final FlutterRenderer flutterRenderer;
   private final NavigationChannel navigationChannel;
   private final LifecycleChannel lifecycleChannel;
-  private final KeyboardChannel keyboardChannel;
   private final LocalizationChannel localizationChannel;
   private final PlatformChannel platformChannel;
   private final SettingsChannel settingsChannel;
   private final SystemChannel systemChannel;
   private final InputMethodManager mImm;
   private final TextInputPlugin mTextInputPlugin;
-  private final KeyboardPlugin mKeyboardPlugin;
   private final LocalizationPlugin mLocalizationPlugin;
   private final MouseCursorPlugin mMouseCursorPlugin;
   private final KeyboardManager mKeyboardManager;
@@ -217,7 +213,6 @@ public void surfaceDestroyed(SurfaceHolder holder) {
 
     // Create all platform channels
     navigationChannel = new NavigationChannel(dartExecutor);
-    keyboardChannel = new KeyboardChannel(dartExecutor);
     lifecycleChannel = new LifecycleChannel(dartExecutor);
     localizationChannel = new LocalizationChannel(dartExecutor);
     platformChannel = new PlatformChannel(dartExecutor);
@@ -238,9 +233,7 @@ public void onPostResume() {
         mNativeView.getPluginRegistry().getPlatformViewsController();
     mTextInputPlugin =
         new TextInputPlugin(this, new TextInputChannel(dartExecutor), platformViewsController);
-
     mKeyboardManager = new KeyboardManager(this);
-    mKeyboardPlugin = new KeyboardPlugin(mKeyboardManager, keyboardChannel);
 
     if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
       mMouseCursorPlugin = new MouseCursorPlugin(this, new MouseCursorChannel(dartExecutor));

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

@@ -39,7 +39,6 @@
 import io.flutter.embedding.engine.renderer.FlutterRenderer;
 import io.flutter.embedding.engine.renderer.FlutterUiDisplayListener;
 import io.flutter.embedding.engine.systemchannels.AccessibilityChannel;
-import io.flutter.embedding.engine.systemchannels.KeyboardChannel;
 import io.flutter.embedding.engine.systemchannels.LifecycleChannel;
 import io.flutter.embedding.engine.systemchannels.LocalizationChannel;
 import io.flutter.embedding.engine.systemchannels.MouseCursorChannel;
@@ -1294,7 +1293,6 @@ private FlutterEngine mockFlutterEngine() {
     when(engine.getAccessibilityChannel()).thenReturn(mock(AccessibilityChannel.class));
     when(engine.getActivityControlSurface()).thenReturn(mock(ActivityControlSurface.class));
     when(engine.getDartExecutor()).thenReturn(mock(DartExecutor.class));
-    when(engine.getKeyboardChannel()).thenReturn(mock(KeyboardChannel.class));
     when(engine.getLifecycleChannel()).thenReturn(mock(LifecycleChannel.class));
     when(engine.getLocalizationChannel()).thenReturn(mock(LocalizationChannel.class));
     when(engine.getLocalizationPlugin()).thenReturn(mock(LocalizationPlugin.class));