| /* |
| * Copyright (C) 2018 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 com.android.server.wm; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.graphics.Point; |
| import android.graphics.Rect; |
| import android.util.proto.ProtoOutputStream; |
| import android.view.SurfaceControl; |
| import android.view.SurfaceControl.Transaction; |
| import android.view.InsetsSource; |
| import android.view.InsetsSourceControl; |
| |
| import com.android.internal.util.function.TriConsumer; |
| import com.android.server.wm.SurfaceAnimator.OnAnimationFinishedCallback; |
| |
| import java.io.PrintWriter; |
| |
| /** |
| * Controller for a specific inset source on the server. It's called provider as it provides the |
| * {@link InsetsSource} to the client that uses it in {@link InsetsSourceConsumer}. |
| */ |
| class InsetsSourceProvider { |
| |
| private final Rect mTmpRect = new Rect(); |
| private final @NonNull InsetsSource mSource; |
| private final DisplayContent mDisplayContent; |
| private final InsetsStateController mStateController; |
| private @Nullable InsetsSourceControl mControl; |
| private @Nullable WindowState mControllingWin; |
| private @Nullable ControlAdapter mAdapter; |
| private WindowState mWin; |
| private TriConsumer<DisplayFrames, WindowState, Rect> mFrameProvider; |
| |
| InsetsSourceProvider(InsetsSource source, InsetsStateController stateController, |
| DisplayContent displayContent) { |
| mSource = source; |
| mDisplayContent = displayContent; |
| mStateController = stateController; |
| } |
| |
| InsetsSource getSource() { |
| return mSource; |
| } |
| |
| /** |
| * Updates the window that currently backs this source. |
| * |
| * @param win The window that links to this source. |
| * @param frameProvider Based on display frame state and the window, calculates the resulting |
| * frame that should be reported to clients. |
| */ |
| void setWindow(@Nullable WindowState win, |
| @Nullable TriConsumer<DisplayFrames, WindowState, Rect> frameProvider) { |
| if (mWin != null) { |
| mWin.setInsetProvider(null); |
| } |
| mWin = win; |
| mFrameProvider = frameProvider; |
| if (win == null) { |
| mSource.setVisible(false); |
| mSource.setFrame(new Rect()); |
| } else { |
| mSource.setVisible(true); |
| mWin.setInsetProvider(this); |
| } |
| } |
| |
| /** |
| * Called when a layout pass has occurred. |
| */ |
| void onPostLayout() { |
| if (mWin == null) { |
| return; |
| } |
| |
| mTmpRect.set(mWin.getFrameLw()); |
| if (mFrameProvider != null) { |
| mFrameProvider.accept(mWin.getDisplayContent().mDisplayFrames, mWin, mTmpRect); |
| } else { |
| mTmpRect.inset(mWin.mGivenContentInsets); |
| } |
| mSource.setFrame(mTmpRect); |
| mSource.setVisible(mWin.isVisible() && !mWin.mGivenInsetsPending); |
| |
| } |
| |
| void updateControlForTarget(@Nullable WindowState target) { |
| if (target == mControllingWin) { |
| return; |
| } |
| if (target == null) { |
| revokeControl(); |
| return; |
| } |
| mAdapter = new ControlAdapter(); |
| mWin.startAnimation(mDisplayContent.getPendingTransaction(), mAdapter, |
| false /* TODO hidden */); |
| mControllingWin = target; |
| mControl = new InsetsSourceControl(mSource.getType(), mAdapter.mCapturedLeash); |
| } |
| |
| InsetsSourceControl getControl() { |
| return mControl; |
| } |
| |
| void revokeControl() { |
| if (mControllingWin != null) { |
| |
| // Cancelling the animation will invoke onAnimationCancelled, resetting all the fields. |
| mWin.cancelAnimation(); |
| } |
| } |
| |
| private class ControlAdapter implements AnimationAdapter { |
| |
| private SurfaceControl mCapturedLeash; |
| |
| @Override |
| public boolean getShowWallpaper() { |
| return false; |
| } |
| |
| @Override |
| public int getBackgroundColor() { |
| return 0; |
| } |
| |
| @Override |
| public void startAnimation(SurfaceControl animationLeash, Transaction t, |
| OnAnimationFinishedCallback finishCallback) { |
| mCapturedLeash = animationLeash; |
| t.setPosition(mCapturedLeash, mSource.getFrame().left, mSource.getFrame().top); |
| } |
| |
| @Override |
| public void onAnimationCancelled(SurfaceControl animationLeash) { |
| if (mAdapter == this) { |
| mStateController.notifyControlRevoked(mControllingWin, InsetsSourceProvider.this); |
| mControl = null; |
| mControllingWin = null; |
| mAdapter = null; |
| } |
| } |
| |
| @Override |
| public long getDurationHint() { |
| return 0; |
| } |
| |
| @Override |
| public long getStatusBarTransitionsStartTime() { |
| return 0; |
| } |
| |
| @Override |
| public void dump(PrintWriter pw, String prefix) { |
| } |
| |
| @Override |
| public void writeToProto(ProtoOutputStream proto) { |
| } |
| }; |
| } |