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Commit 38644e35 authored by Marvin Bernal's avatar Marvin Bernal
Browse files

Add System Back function to SystemUiProxy 

Bug: 183988752
Test: Tested with foldable launcher prototype in ub-launcher3-foldable-exp (ag/14020347)
Change-Id: Id19445d9a11e314b57237235e4dcbf8dbcf289e7
parent 3309f233

packages/SystemUI/shared/src/com/android/systemui/shared/recents/ISystemUiProxy.aidl

+6 −1
Original line number Diff line number Diff line
@@ -134,5 +134,10 @@ interface ISystemUiProxy { 
     */

    void expandNotificationPanel() = 29;



    // Next id = 44

    /**

     * Notifies SystemUI to invoke Back.

     */

    void onBackPressed() = 44;



    // Next id = 45

}

packages/SystemUI/src/com/android/systemui/recents/OverviewProxyService.java

+33 −0
Original line number Diff line number Diff line
@@ -58,9 +58,12 @@ import android.os.IBinder; 
import android.os.Looper;

import android.os.PatternMatcher;

import android.os.RemoteException;

import android.os.SystemClock;

import android.os.UserHandle;

import android.util.Log;

import android.view.InputDevice;

import android.view.InputMonitor;

import android.view.KeyCharacterMap;

import android.view.KeyEvent;

import android.view.MotionEvent;

import android.view.Surface;
@@ -239,6 +242,36 @@ public class OverviewProxyService extends CurrentUserTracker implements 
            }

        }



        @Override

        public void onBackPressed() throws RemoteException {

            if (!verifyCaller("onBackPressed")) {

                return;

            }

            final long token = Binder.clearCallingIdentity();

            try {

                mHandler.post(() -> {

                    sendEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_BACK);

                    sendEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_BACK);



                    notifyBackAction(true, -1, -1, true, false);

                });

            } finally {

                Binder.restoreCallingIdentity(token);

            }

        }



        private boolean sendEvent(int action, int code) {

            long when = SystemClock.uptimeMillis();

            final KeyEvent ev = new KeyEvent(when, when, action, code, 0 /* repeat */,

                    0 /* metaState */, KeyCharacterMap.VIRTUAL_KEYBOARD, 0 /* scancode */,

                    KeyEvent.FLAG_FROM_SYSTEM | KeyEvent.FLAG_VIRTUAL_HARD_KEY,

                    InputDevice.SOURCE_KEYBOARD);



            ev.setDisplayId(mContext.getDisplay().getDisplayId());

            return InputManager.getInstance()

                    .injectInputEvent(ev, InputManager.INJECT_INPUT_EVENT_MODE_ASYNC);

        }



        @Override

        public void onOverviewShown(boolean fromHome) {

            if (!verifyCaller("onOverviewShown")) {