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Commit 4ffc8977 authored by Adrian Roos's avatar Adrian Roos
Browse files

Gestures: Assemble per-window exclusion zones 

Adds a facility to listen for per-window exclusion zones and
assembles them into a per-display exclusion zone ready for
consumption by interested parties.

Bug: 126360272
Test: atest DisplayContentTests
Change-Id: Ic186f86ca551af98a5f77beb254d257c281a4160
parent c00ee569

Android.bp

+1 −0
Original line number Diff line number Diff line
@@ -383,6 +383,7 @@ java_defaults { 
        "core/java/android/view/IRecentsAnimationRunner.aidl",

        "core/java/android/view/IRemoteAnimationFinishedCallback.aidl",

        "core/java/android/view/IRotationWatcher.aidl",

        "core/java/android/view/ISystemGestureExclusionListener.aidl",

        "core/java/android/view/IWallpaperVisibilityListener.aidl",

        "core/java/android/view/IWindow.aidl",

        "core/java/android/view/IWindowFocusObserver.aidl",

core/java/android/view/ISystemGestureExclusionListener.aidl

0 → 100644
+34 −0
Original line number Diff line number Diff line 
/**

 * Copyright (c) 2019, 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.view;



import android.graphics.Region;



/**

 * Listener for changes to the system gesture exclusion region

 *

 * {@hide}

 */

oneway interface ISystemGestureExclusionListener {

    /**

     * Called when the system gesture exclusion for the given display changed.

     * @param displayId the display whose system gesture exclusion changed

     * @param systemGestureExclusion a {@code Region} where the app would like priority over the

     *                               system gestures, in display coordinates.

     */

    void onSystemGestureExclusionChanged(int displayId, in Region systemGestureExclusion);

}
 
 No newline at end of file

core/java/android/view/IWindowManager.aidl

+13 −0
Original line number Diff line number Diff line
@@ -40,6 +40,7 @@ import android.view.IOnKeyguardExitResult; 
import android.view.IPinnedStackListener;

import android.view.RemoteAnimationAdapter;

import android.view.IRotationWatcher;

import android.view.ISystemGestureExclusionListener;

import android.view.IWallpaperVisibilityListener;

import android.view.IWindowSession;

import android.view.IWindowSessionCallback;
@@ -280,6 +281,18 @@ interface IWindowManager 
    void unregisterWallpaperVisibilityListener(IWallpaperVisibilityListener listener,

        int displayId);



    /**

     * Registers a system gesture exclusion listener for a given display.

     */

    void registerSystemGestureExclusionListener(ISystemGestureExclusionListener listener,

        int displayId);



    /**

     * Unregisters a system gesture exclusion listener for a given display.

     */

    void unregisterSystemGestureExclusionListener(ISystemGestureExclusionListener listener,

        int displayId);



    /**

     * Used only for assist -- request a screenshot of the current application.

     */

core/java/android/view/IWindowSession.aidl

+8 −0
Original line number Diff line number Diff line
@@ -32,6 +32,8 @@ import android.view.InsetsState; 
import android.view.Surface;

import android.view.SurfaceControl;



import java.util.List;



/**

 * System private per-application interface to the window manager.

 *
@@ -265,4 +267,10 @@ interface IWindowSession { 
     * that new state.

     */

    void insetsModified(IWindow window, in InsetsState state);





    /**

     * Called when the system gesture exclusion has changed.

     */

    void reportSystemGestureExclusionChanged(IWindow window, in List<Rect> exclusionRects);

}

core/java/android/view/ViewRootImpl.java

+5 −1
Original line number Diff line number Diff line
@@ -3990,7 +3990,11 @@ public final class ViewRootImpl implements ViewParent, 
    void systemGestureExclusionChanged() {

        final List<Rect> rectsForWindowManager = mGestureExclusionTracker.computeChangedRects();

        if (rectsForWindowManager != null) {

            // TODO Send to WM

            try {

                mWindowSession.reportSystemGestureExclusionChanged(mWindow, rectsForWindowManager);

            } catch (RemoteException e) {

                throw e.rethrowFromSystemServer();

            }

            mAttachInfo.mTreeObserver

                    .dispatchOnSystemGestureExclusionRectsChanged(rectsForWindowManager);

        }