Handle adjust volume user restriction

- Finish all do not disturb pages immediately
 - Disable relevant items in Sounds & notification

Bug: 21642285
Change-Id: I8de9bd10b8cea8adaa306b1ae388ab7d1ccc4e7e

src/com/android/settings/notification/NotificationSettings.java

@@ -38,6 +38,7 @@ import android.os.Handler;
 import android.os.Looper;
 import android.os.Message;
 import android.os.UserHandle;
+import android.os.UserManager;
 import android.os.Vibrator;
 import android.preference.Preference;
 import android.preference.Preference.OnPreferenceChangeListener;
@@ -81,6 +82,15 @@ public class NotificationSettings extends SettingsPreferenceFragment implements
     private static final String KEY_LOCK_SCREEN_NOTIFICATIONS = "lock_screen_notifications";
     private static final String KEY_NOTIFICATION_ACCESS = "manage_notification_access";
     private static final String KEY_ZEN_ACCESS = "manage_zen_access";
+    private static final String KEY_ZEN_MODE = "zen_mode";
+
+    private static final String[] RESTRICTED_KEYS = {
+        KEY_MEDIA_VOLUME,
+        KEY_ALARM_VOLUME,
+        KEY_RING_VOLUME,
+        KEY_ZEN_ACCESS,
+        KEY_ZEN_MODE,
+    };
 
     private static final int SAMPLE_CUTOFF = 2000;  // manually cap sample playback at 2 seconds
 
@@ -109,6 +119,8 @@ public class NotificationSettings extends SettingsPreferenceFragment implements
     private ComponentName mSuppressor;
     private int mRingerMode = -1;
 
+    private UserManager mUserManager;
+
     @Override
     protected int getMetricsCategory() {
         return MetricsLogger.NOTIFICATION;
@@ -119,6 +131,7 @@ public class NotificationSettings extends SettingsPreferenceFragment implements
         super.onCreate(savedInstanceState);
         mContext = getActivity();
         mPM = mContext.getPackageManager();
+        mUserManager = UserManager.get(getContext());
         mVoiceCapable = Utils.isVoiceCapable(mContext);
         mSecure = new LockPatternUtils(getActivity()).isSecure(UserHandle.myUserId());
 
@@ -175,6 +188,13 @@ public class NotificationSettings extends SettingsPreferenceFragment implements
         for (VolumeSeekBarPreference volumePref : mVolumePrefs) {
             volumePref.onActivityResume();
         }
+        boolean isRestricted = mUserManager.hasUserRestriction(UserManager.DISALLOW_ADJUST_VOLUME);
+        for (String key : RESTRICTED_KEYS) {
+            Preference pref = findPreference(key);
+            if (pref != null) {
+                pref.setEnabled(!isRestricted);
+            }
+        }
     }
 
     @Override

src/com/android/settings/notification/VolumeSeekBarPreference.java

@@ -139,6 +139,10 @@ public class VolumeSeekBarPreference extends SeekBarPreference
         updateIconView();
         mCallback.onStreamValueChanged(mStream, mSeekBar.getProgress());
         updateSuppressionText();
+        if (!isEnabled()) {
+            mSeekBar.setEnabled(false);
+            mVolumizer.stop();
+        }
     }
 
     // during initialization, this preference is the SeekBar listener

src/com/android/settings/notification/ZenModeSettingsBase.java

@@ -22,16 +22,17 @@ import android.database.ContentObserver;
 import android.net.Uri;
 import android.os.Bundle;
 import android.os.Handler;
+import android.os.UserManager;
 import android.provider.Settings;
 import android.provider.Settings.Global;
 import android.service.notification.ZenModeConfig;
 import android.util.Log;
 
-import com.android.settings.SettingsPreferenceFragment;
+import com.android.settings.RestrictedSettingsFragment;
 
 import java.util.Objects;
 
-abstract public class ZenModeSettingsBase extends SettingsPreferenceFragment {
+abstract public class ZenModeSettingsBase extends RestrictedSettingsFragment {
     protected static final String TAG = "ZenModeSettings";
     protected static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);
 
@@ -45,6 +46,10 @@ abstract public class ZenModeSettingsBase extends SettingsPreferenceFragment {
     abstract protected void onZenModeChanged();
     abstract protected void onZenModeConfigChanged();
 
+    public ZenModeSettingsBase() {
+        super(UserManager.DISALLOW_ADJUST_VOLUME);
+    }
+
     @Override
     public void onCreate(Bundle icicle) {
         super.onCreate(icicle);
@@ -60,6 +65,9 @@ abstract public class ZenModeSettingsBase extends SettingsPreferenceFragment {
         updateZenMode(true /*fireChanged*/);
         updateZenModeConfig(true /*fireChanged*/);
         mSettingsObserver.register();
+        if (isUiRestricted()) {
+            finish();
+        }
     }
 
     @Override