| /* |
| * Copyright (C) 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.view; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.graphics.Matrix; |
| import android.os.IBinder; |
| import android.view.accessibility.AccessibilityManager; |
| import android.view.accessibility.IAccessibilityEmbeddedConnection; |
| |
| import java.lang.ref.WeakReference; |
| |
| /** |
| * This class is an interface this ViewRootImpl provides to the host view to the latter |
| * can interact with the view hierarchy in SurfaceControlViewHost. |
| * |
| * @hide |
| */ |
| final class AccessibilityEmbeddedConnection extends IAccessibilityEmbeddedConnection.Stub { |
| private final WeakReference<ViewRootImpl> mViewRootImpl; |
| |
| AccessibilityEmbeddedConnection(ViewRootImpl viewRootImpl) { |
| mViewRootImpl = new WeakReference<>(viewRootImpl); |
| } |
| |
| @Override |
| public @Nullable IBinder associateEmbeddedHierarchy(@NonNull IBinder host, int hostViewId) { |
| final ViewRootImpl viewRootImpl = mViewRootImpl.get(); |
| if (viewRootImpl != null) { |
| final AccessibilityManager accessibilityManager = AccessibilityManager.getInstance( |
| viewRootImpl.mContext); |
| viewRootImpl.mAttachInfo.mLeashedParentToken = host; |
| viewRootImpl.mAttachInfo.mLeashedParentAccessibilityViewId = hostViewId; |
| if (accessibilityManager.isEnabled()) { |
| accessibilityManager.associateEmbeddedHierarchy(host, viewRootImpl.mLeashToken); |
| } |
| return viewRootImpl.mLeashToken; |
| } |
| return null; |
| } |
| |
| @Override |
| public void disassociateEmbeddedHierarchy() { |
| final ViewRootImpl viewRootImpl = mViewRootImpl.get(); |
| if (viewRootImpl != null) { |
| final AccessibilityManager accessibilityManager = AccessibilityManager.getInstance( |
| viewRootImpl.mContext); |
| viewRootImpl.mAttachInfo.mLeashedParentToken = null; |
| viewRootImpl.mAttachInfo.mLeashedParentAccessibilityViewId = View.NO_ID; |
| viewRootImpl.mAttachInfo.mLocationInParentDisplay.set(0, 0); |
| if (accessibilityManager.isEnabled()) { |
| accessibilityManager.disassociateEmbeddedHierarchy(viewRootImpl.mLeashToken); |
| } |
| } |
| } |
| |
| @Override |
| public void setScreenMatrix(float[] matrixValues) { |
| final ViewRootImpl viewRootImpl = mViewRootImpl.get(); |
| if (viewRootImpl != null) { |
| // TODO(b/148821260): Implement the rest of matrix values. |
| viewRootImpl.mAttachInfo.mLocationInParentDisplay.set( |
| (int) matrixValues[Matrix.MTRANS_X], (int) matrixValues[Matrix.MTRANS_Y]); |
| } |
| } |
| } |