| /* |
| * Copyright (C) 2021 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.wm.shell.pip; |
| |
| import android.annotation.IntDef; |
| import android.app.PictureInPictureParams; |
| import android.content.ComponentName; |
| import android.content.pm.ActivityInfo; |
| |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| |
| /** |
| * Used to keep track of PiP leash state as it appears and animates by {@link PipTaskOrganizer} and |
| * {@link PipTransition}. |
| */ |
| public class PipTransitionState { |
| |
| public static final int UNDEFINED = 0; |
| public static final int TASK_APPEARED = 1; |
| public static final int ENTRY_SCHEDULED = 2; |
| public static final int ENTERING_PIP = 3; |
| public static final int ENTERED_PIP = 4; |
| public static final int EXITING_PIP = 5; |
| |
| /** |
| * If set to {@code true}, no entering PiP transition would be kicked off and most likely |
| * it's due to the fact that Launcher is handling the transition directly when swiping |
| * auto PiP-able Activity to home. |
| * See also {@link PipTaskOrganizer#startSwipePipToHome(ComponentName, ActivityInfo, |
| * PictureInPictureParams)}. |
| */ |
| private boolean mInSwipePipToHomeTransition; |
| |
| // Not a complete set of states but serves what we want right now. |
| @IntDef(prefix = { "TRANSITION_STATE_" }, value = { |
| UNDEFINED, |
| TASK_APPEARED, |
| ENTRY_SCHEDULED, |
| ENTERING_PIP, |
| ENTERED_PIP, |
| EXITING_PIP |
| }) |
| @Retention(RetentionPolicy.SOURCE) |
| public @interface TransitionState {} |
| |
| private @TransitionState int mState; |
| |
| public PipTransitionState() { |
| mState = UNDEFINED; |
| } |
| |
| public void setTransitionState(@TransitionState int state) { |
| mState = state; |
| } |
| |
| public @TransitionState int getTransitionState() { |
| return mState; |
| } |
| |
| public boolean isInPip() { |
| return mState >= TASK_APPEARED |
| && mState != EXITING_PIP; |
| } |
| |
| public void setInSwipePipToHomeTransition(boolean inSwipePipToHomeTransition) { |
| mInSwipePipToHomeTransition = inSwipePipToHomeTransition; |
| } |
| |
| public boolean getInSwipePipToHomeTransition() { |
| return mInSwipePipToHomeTransition; |
| } |
| /** |
| * Resize request can be initiated in other component, ignore if we are no longer in PIP, |
| * still waiting for animation or we're exiting from it. |
| * |
| * @return {@code true} if the resize request should be blocked/ignored. |
| */ |
| public boolean shouldBlockResizeRequest() { |
| return mState < ENTERING_PIP |
| || mState == EXITING_PIP; |
| } |
| } |