Merge "Ban background process vibration" (987712e0) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/VibratorService.java

+36 −0

Original line number	Diff line number	Diff line
		@@ -16,7 +16,9 @@

		package com.android.server;

		import android.app.ActivityManager;
		import android.app.AppOpsManager;
		import android.app.IUidObserver;
		import android.content.BroadcastReceiver;
		import android.content.Context;
		import android.content.Intent;
		@@ -111,6 +113,7 @@ public class VibratorService extends IVibratorService.Stub
		private final boolean mSupportsAmplitudeControl;
		private final int mDefaultVibrationAmplitude;
		private final SparseArray<VibrationEffect> mFallbackEffects;
		private final SparseArray<Integer> mProcStatesCache = new SparseArray();
		private final WorkSource mTmpWorkSource = new WorkSource();
		private final Handler mH = new Handler();
		private final Object mLock = new Object();
		@@ -147,6 +150,25 @@ public class VibratorService extends IVibratorService.Stub
		native static void vibratorSetAmplitude(int amplitude);
		native static long vibratorPerformEffect(long effect, long strength);

		private final IUidObserver mUidObserver = new IUidObserver.Stub() {
		@Override public void onUidStateChanged(int uid, int procState, long procStateSeq) {
		mProcStatesCache.put(uid, procState);
		}

		@Override public void onUidGone(int uid, boolean disabled) {
		mProcStatesCache.delete(uid);
		}

		@Override public void onUidActive(int uid) {
		}

		@Override public void onUidIdle(int uid, boolean disabled) {
		}

		@Override public void onUidCachedChanged(int uid, boolean cached) {
		}
		};

		private class Vibration implements IBinder.DeathRecipient {
		public final IBinder token;
		// Start time in CLOCK_BOOTTIME base.
		@@ -411,6 +433,14 @@ public class VibratorService extends IVibratorService.Stub
		}
		}, new IntentFilter(Intent.ACTION_USER_SWITCHED), null, mH);

		try {
		ActivityManager.getService().registerUidObserver(mUidObserver,
		ActivityManager.UID_OBSERVER_PROCSTATE \| ActivityManager.UID_OBSERVER_GONE,
		ActivityManager.PROCESS_STATE_UNKNOWN, null);
		} catch (RemoteException e) {
		// ignored; both services live in system_server
		}

		updateVibrators();
		} finally {
		Trace.traceEnd(Trace.TRACE_TAG_VIBRATOR);
		@@ -502,6 +532,12 @@ public class VibratorService extends IVibratorService.Stub
		return;
		}
		verifyIncomingUid(uid);
		if (mProcStatesCache.get(uid, ActivityManager.PROCESS_STATE_IMPORTANT_FOREGROUND)
		> ActivityManager.PROCESS_STATE_IMPORTANT_FOREGROUND) {
		Slog.e(TAG, "Ignoring incoming vibration as process with uid = "
		+ uid + " is background");
		return;
		}
		if (!verifyVibrationEffect(effect)) {
		return;
		}