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Commit 3e458c4f authored by Galia Peycheva's avatar Galia Peycheva
Browse files

Disable blurs during battery saver mode 

Bug: 185240113
Test: m && flash && check app receives blur enabled/disabled events when
      battery saver mode is enabled/disabled

Change-Id: Icc4fea54194bdb79c163b57dc2b61feae1c382f5
parent bf05d0ee

services/core/java/com/android/server/wm/BlurController.java

+40 −4
Original line number Diff line number Diff line
@@ -18,24 +18,52 @@ package com.android.server.wm; 


import static android.view.CrossWindowBlurListeners.CROSS_WINDOW_BLUR_SUPPORTED;



import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.content.IntentFilter;

import android.net.ConnectivityManager;

import android.os.PowerManager;

import android.os.RemoteCallbackList;

import android.os.RemoteException;

import android.view.ICrossWindowBlurEnabledListener;



import com.android.internal.annotations.GuardedBy;



/**

 * Keeps track of the different factors that determine whether cross-window blur is enabled

 * or disabled. Also keeps a list of all interested listeners and notifies them when the

 * blur enabled state changes.

 */

final class BlurController {



    private final PowerManager mPowerManager;

    private final RemoteCallbackList<ICrossWindowBlurEnabledListener>

            mBlurEnabledListeners = new RemoteCallbackList<>();

    // We don't use the WM global lock, because the BlurController is not involved in window

    // drawing and only receives binder calls that don't need synchronization with the rest of WM

    private final Object mLock = new Object();

    @GuardedBy("mLock")

    boolean mBlurEnabled;

    @GuardedBy("mLock")

    boolean mBlurForceDisabled;

    @GuardedBy("mLock")

    boolean mInBatterySaverMode;



    BlurController() {

        mBlurEnabled = CROSS_WINDOW_BLUR_SUPPORTED;

    BlurController(Context context, PowerManager powerManager) {

        mPowerManager = powerManager;

        mInBatterySaverMode = mPowerManager.isPowerSaveMode();

        updateBlurEnabledLocked();



        IntentFilter filter = new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION);

        filter.addAction(PowerManager.ACTION_POWER_SAVE_MODE_CHANGED);

        context.registerReceiverForAllUsers(new BroadcastReceiver() {

            @Override

            public void onReceive(Context context, Intent intent) {

                if (PowerManager.ACTION_POWER_SAVE_MODE_CHANGED.equals(intent.getAction())) {

                    setBatterySaverEnabled(mPowerManager.isPowerSaveMode());

                }

            }

        }, filter, null, null);

    }



    boolean registerCrossWindowBlurEnabledListener(ICrossWindowBlurEnabledListener listener) {
@@ -59,8 +87,16 @@ final class BlurController { 


    }



    void setBatterySaverEnabled(boolean enabled) {

        synchronized (mLock) {

            mInBatterySaverMode = enabled;

            updateBlurEnabledLocked();

        }

    }



    private void updateBlurEnabledLocked() {

        final boolean newEnabled = CROSS_WINDOW_BLUR_SUPPORTED && !mBlurForceDisabled;

        final boolean newEnabled = CROSS_WINDOW_BLUR_SUPPORTED && !mBlurForceDisabled

                && !mInBatterySaverMode;

        if (mBlurEnabled == newEnabled) {

            return;

        }

services/core/java/com/android/server/wm/WindowManagerService.java

+3 −1
Original line number Diff line number Diff line
@@ -730,7 +730,7 @@ public class WindowManagerService extends IWindowManager.Stub 


    final TaskSnapshotController mTaskSnapshotController;



    final BlurController mBlurController = new BlurController();

    final BlurController mBlurController;



    boolean mIsTouchDevice;

    boolean mIsFakeTouchDevice;
@@ -1413,6 +1413,8 @@ public class WindowManagerService extends IWindowManager.Stub 
        setGlobalShadowSettings();

        mAnrController = new AnrController(this);

        mStartingSurfaceController = new StartingSurfaceController(this);



        mBlurController = new BlurController(mContext, mPowerManager);

    }



    DisplayAreaPolicy.Provider getDisplayAreaPolicyProvider() {