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/*
* 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 android.window;
import static android.app.WindowConfiguration.WindowingMode;
import static java.util.Objects.requireNonNull;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.annotation.TestApi;
import android.content.res.Configuration;
import android.graphics.Point;
import android.os.IBinder;
import android.os.Parcel;
import android.os.Parcelable;
import java.util.ArrayList;
import java.util.List;
/**
* Stores information about a particular TaskFragment.
* @hide
*/
@TestApi
public final class TaskFragmentInfo implements Parcelable {
/**
* Client assigned unique token in {@link TaskFragmentCreationParams#getFragmentToken()} to
* create this TaskFragment with.
*/
@NonNull
private final IBinder mFragmentToken;
@NonNull
private final WindowContainerToken mToken;
@NonNull
private final Configuration mConfiguration = new Configuration();
/** Whether the TaskFragment contains any child Window Container. */
private final boolean mIsEmpty;
/** The number of the running activities in the TaskFragment. */
private final int mRunningActivityCount;
/** Whether this TaskFragment is visible on the window hierarchy. */
private final boolean mIsVisible;
/**
* List of Activity tokens that are children of this TaskFragment. It only contains Activities
* that belong to the organizer process for security.
*/
@NonNull
private final List<IBinder> mActivities = new ArrayList<>();
/** Relative position of the fragment's top left corner in the parent container. */
private final Point mPositionInParent;
/**
* Whether the last running activity in the TaskFragment was finished due to clearing task while
* launching an activity in the host Task.
*/
private final boolean mIsTaskClearedForReuse;
/** @hide */
public TaskFragmentInfo(
@NonNull IBinder fragmentToken, @NonNull WindowContainerToken token,
@NonNull Configuration configuration, boolean isEmpty, int runningActivityCount,
boolean isVisible, @NonNull List<IBinder> activities, @NonNull Point positionInParent,
boolean isTaskClearedForReuse) {
mFragmentToken = requireNonNull(fragmentToken);
mToken = requireNonNull(token);
mConfiguration.setTo(configuration);
mIsEmpty = isEmpty;
mRunningActivityCount = runningActivityCount;
mIsVisible = isVisible;
mActivities.addAll(activities);
mPositionInParent = requireNonNull(positionInParent);
mIsTaskClearedForReuse = isTaskClearedForReuse;
}
@NonNull
public IBinder getFragmentToken() {
return mFragmentToken;
}
@NonNull
public WindowContainerToken getToken() {
return mToken;
}
@NonNull
public Configuration getConfiguration() {
return mConfiguration;
}
public boolean isEmpty() {
return mIsEmpty;
}
public boolean hasRunningActivity() {
return mRunningActivityCount > 0;
}
public int getRunningActivityCount() {
return mRunningActivityCount;
}
public boolean isVisible() {
return mIsVisible;
}
@NonNull
public List<IBinder> getActivities() {
return mActivities;
}
/** Returns the relative position of the fragment's top left corner in the parent container. */
@NonNull
public Point getPositionInParent() {
return mPositionInParent;
}
public boolean isTaskClearedForReuse() {
return mIsTaskClearedForReuse;
}
@WindowingMode
public int getWindowingMode() {
return mConfiguration.windowConfiguration.getWindowingMode();
}
/**
* Returns {@code true} if the parameters that are important for task fragment organizers are
* equal between this {@link TaskFragmentInfo} and {@param that}.
*/
public boolean equalsForTaskFragmentOrganizer(@Nullable TaskFragmentInfo that) {
if (that == null) {
return false;
}
return mFragmentToken.equals(that.mFragmentToken)
&& mToken.equals(that.mToken)
&& mIsEmpty == that.mIsEmpty
&& mRunningActivityCount == that.mRunningActivityCount
&& mIsVisible == that.mIsVisible
&& getWindowingMode() == that.getWindowingMode()
&& mActivities.equals(that.mActivities)
&& mPositionInParent.equals(that.mPositionInParent)
&& mIsTaskClearedForReuse == that.mIsTaskClearedForReuse;
}
private TaskFragmentInfo(Parcel in) {
mFragmentToken = in.readStrongBinder();
mToken = in.readTypedObject(WindowContainerToken.CREATOR);
mConfiguration.readFromParcel(in);
mIsEmpty = in.readBoolean();
mRunningActivityCount = in.readInt();
mIsVisible = in.readBoolean();
in.readBinderList(mActivities);
mPositionInParent = requireNonNull(in.readTypedObject(Point.CREATOR));
mIsTaskClearedForReuse = in.readBoolean();
}
/** @hide */
@Override
public void writeToParcel(@NonNull Parcel dest, int flags) {
dest.writeStrongBinder(mFragmentToken);
dest.writeTypedObject(mToken, flags);
mConfiguration.writeToParcel(dest, flags);
dest.writeBoolean(mIsEmpty);
dest.writeInt(mRunningActivityCount);
dest.writeBoolean(mIsVisible);
dest.writeBinderList(mActivities);
dest.writeTypedObject(mPositionInParent, flags);
dest.writeBoolean(mIsTaskClearedForReuse);
}
@NonNull
public static final Creator<TaskFragmentInfo> CREATOR =
new Creator<TaskFragmentInfo>() {
@Override
public TaskFragmentInfo createFromParcel(Parcel in) {
return new TaskFragmentInfo(in);
}
@Override
public TaskFragmentInfo[] newArray(int size) {
return new TaskFragmentInfo[size];
}
};
@Override
public String toString() {
return "TaskFragmentInfo{"
+ " fragmentToken=" + mFragmentToken
+ " token=" + mToken
+ " isEmpty=" + mIsEmpty
+ " runningActivityCount=" + mRunningActivityCount
+ " isVisible=" + mIsVisible
+ " activities=" + mActivities
+ " positionInParent=" + mPositionInParent
+ " isTaskClearedForReuse=" + mIsTaskClearedForReuse
+ "}";
}
/** @hide */
@Override
public int describeContents() {
return 0;
}
}
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