Added zen settings messages and calls preferences.

- Made ZenModeSettings and ZenModeBehaviorSettings a DashboardFragment
- Switches in ZenModeBehaviorSettings all have their own preference controllers
- Instead of a dropdown, messages & calls have their own pages & preference controllers
- Added basic turn on/off DND button in settings (dialog not yet implemented)

Bug: 63077372
Fixes: 69057767
Test: make -j40 RunSettingsRoboTests
Change-Id: I1c70f77053713f66f873ee578477f23cfd7985bb

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

@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2017 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 com.android.settings.notification;
+
+import android.app.NotificationManager;
+import android.content.ContentResolver;
+import android.content.Context;
+import android.database.ContentObserver;
+import android.net.Uri;
+import android.os.Handler;
+import android.provider.Settings;
+import android.support.v7.preference.Preference;
+import android.support.v7.preference.PreferenceScreen;
+
+import com.android.settings.core.PreferenceControllerMixin;
+import com.android.settingslib.core.AbstractPreferenceController;
+import com.android.settingslib.core.lifecycle.Lifecycle;
+import com.android.settingslib.core.lifecycle.LifecycleObserver;
+import com.android.settingslib.core.lifecycle.events.OnPause;
+import com.android.settingslib.core.lifecycle.events.OnResume;
+
+abstract public class AbstractZenModePreferenceController extends
+        AbstractPreferenceController implements PreferenceControllerMixin, LifecycleObserver,
+        OnResume, OnPause {
+
+    private SettingObserver mSettingObserver;
+    private final String KEY;
+    final private NotificationManager mNotificationManager;
+
+    public AbstractZenModePreferenceController(Context context, String key,
+            Lifecycle lifecycle) {
+        super(context);
+        if (lifecycle != null) {
+            lifecycle.addObserver(this);
+        }
+        KEY = key;
+        mNotificationManager = (NotificationManager) context.getSystemService(
+                Context.NOTIFICATION_SERVICE);
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+        mSettingObserver = new SettingObserver(screen.findPreference(KEY));
+    }
+
+    @Override
+    public void onResume() {
+        if (mSettingObserver != null) {
+            mSettingObserver.register(mContext.getContentResolver());
+        }
+    }
+
+    @Override
+    public void onPause() {
+        if (mSettingObserver != null) {
+            mSettingObserver.unregister(mContext.getContentResolver());
+        }
+    }
+
+    protected NotificationManager.Policy getPolicy() {
+        return mNotificationManager.getNotificationPolicy();
+    }
+
+    protected int getZenMode() {
+        return Settings.Global.getInt(mContext.getContentResolver(),
+                Settings.Global.ZEN_MODE, 0);
+    }
+
+    class SettingObserver extends ContentObserver {
+        private final Uri ZEN_MODE_URI = Settings.Global.getUriFor(Settings.Global.ZEN_MODE);
+        private final Uri ZEN_MODE_CONFIG_ETAG_URI = Settings.Global.getUriFor(
+                Settings.Global.ZEN_MODE_CONFIG_ETAG);
+
+        private final Preference mPreference;
+
+        public SettingObserver(Preference preference) {
+            super(new Handler());
+            mPreference = preference;
+        }
+
+        public void register(ContentResolver cr) {
+            cr.registerContentObserver(ZEN_MODE_URI, false, this);
+            cr.registerContentObserver(ZEN_MODE_CONFIG_ETAG_URI, false, this);
+        }
+
+        public void unregister(ContentResolver cr) {
+            cr.unregisterContentObserver(this);
+        }
+
+        @Override
+        public void onChange(boolean selfChange, Uri uri) {
+            super.onChange(selfChange, uri);
+            if (ZEN_MODE_URI.equals(uri)) {
+                updateState(mPreference);
+            }
+
+            if (ZEN_MODE_CONFIG_ETAG_URI.equals(uri)) {
+                updateState(mPreference);
+            }
+        }
+    }
+}