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