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Commit e2c77f90 authored by Jorim Jaggi's avatar Jorim Jaggi
Browse files

Handle content insets for snapshots 

Pass information about content insets of a snapshotted task to
SystemUI and use it there to correctly offset the snapshot
when drawing.

Test: Open app, go to recents, make sure app aligns before
and after the animation.
Bug: 31339431
Change-Id: I2ff9bd44534bd8f66b591385da1e1e3aec40b6c5
parent a50da607

core/java/android/app/ActivityManager.aidl

+3 −1
Original line number Diff line number Diff line
@@ -27,3 +27,5 @@ parcelable ActivityManager.RunningTaskInfo; 
parcelable ActivityManager.StackInfo;

/** @hide */

parcelable ActivityManager.TaskThumbnail;

/** @hide */

parcelable ActivityManager.TaskSnapshot;
 
 No newline at end of file

core/java/android/app/ActivityManager.java

+57 −0
Original line number Diff line number Diff line
@@ -26,6 +26,7 @@ import android.annotation.TestApi; 
import android.content.pm.ActivityInfo;

import android.content.res.Configuration;

import android.graphics.Canvas;

import android.graphics.GraphicBuffer;

import android.graphics.Matrix;

import android.graphics.Point;

import android.os.BatteryStats;
@@ -2125,6 +2126,62 @@ public class ActivityManager { 
        };

    }



    /**

     * Represents a task snapshot.

     * @hide

     */

    public static class TaskSnapshot implements Parcelable {



        private final GraphicBuffer mSnapshot;

        private final int mOrientation;

        private final Rect mContentInsets;



        public TaskSnapshot(GraphicBuffer snapshot, int orientation, Rect contentInsets) {

            mSnapshot = snapshot;

            mOrientation = orientation;

            mContentInsets = new Rect(contentInsets);

        }



        private TaskSnapshot(Parcel source) {

            mSnapshot = source.readParcelable(null /* classLoader */);

            mOrientation = source.readInt();

            mContentInsets = source.readParcelable(null /* classLoader */);

        }



        public GraphicBuffer getSnapshot() {

            return mSnapshot;

        }



        public int getOrientation() {

            return mOrientation;

        }



        public Rect getContentInsets() {

            return mContentInsets;

        }



        @Override

        public int describeContents() {

            return 0;

        }



        @Override

        public void writeToParcel(Parcel dest, int flags) {

            dest.writeParcelable(mSnapshot, 0);

            dest.writeInt(mOrientation);

            dest.writeParcelable(mContentInsets, 0);

        }



        public static final Creator<TaskSnapshot> CREATOR = new Creator<TaskSnapshot>() {

            public TaskSnapshot createFromParcel(Parcel source) {

                return new TaskSnapshot(source);

            }

            public TaskSnapshot[] newArray(int size) {

                return new TaskSnapshot[size];

            }

        };

    }



    /** @hide */

    public TaskThumbnail getTaskThumbnail(int id) throws SecurityException {

        try {

core/java/android/app/IActivityManager.aidl

+1 −1
Original line number Diff line number Diff line
@@ -600,7 +600,7 @@ interface IActivityManager { 
    /**

     * @return a graphic buffer representing a screenshot of a task

     */

    GraphicBuffer getTaskSnapshot(int taskId);

    ActivityManager.TaskSnapshot getTaskSnapshot(int taskId);



    // WARNING: when these transactions are updated, check if they are any callers on the native

    // side. If so, make sure they are using the correct transaction ids and arguments.

core/java/android/view/IWindowManager.aidl

+1 −0
Original line number Diff line number Diff line
@@ -48,6 +48,7 @@ import android.view.InputDevice; 
import android.view.IInputFilter;

import android.view.AppTransitionAnimationSpec;

import android.view.WindowContentFrameStats;

import android.view.WindowManager;



/**

 * System private interface to the window manager.

core/java/android/view/WindowManager.aidl

+2 −1
Original line number Diff line number Diff line
@@ -18,4 +18,5 @@ 
package android.view;



parcelable WindowManager.LayoutParams;

/** @hide */

parcelable WindowManager.TaskSnapshot;