Settings: Move priority configuration to its own sub-settings page.

Bug: 20064962
Change-Id: Idd03e0e5077e13cc08ff9997ab9ad56ddcdb5c50

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

@@ -0,0 +1,133 @@
+/*
+ * Copyright (C) 2015 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.INotificationManager;
+import android.content.Context;
+import android.database.ContentObserver;
+import android.net.Uri;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.ServiceManager;
+import android.provider.Settings.Global;
+import android.service.notification.ZenModeConfig;
+import android.util.Log;
+
+import com.android.settings.SettingsPreferenceFragment;
+
+import java.util.Objects;
+
+abstract public class ZenModeSettingsBase extends SettingsPreferenceFragment {
+    protected static final String TAG = "ZenModeSettings";
+    protected static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);
+
+    private final Handler mHandler = new Handler();
+    private final SettingsObserver mSettingsObserver = new SettingsObserver();
+
+    protected Context mContext;
+    protected ZenModeConfig mConfig;
+
+    abstract protected void onZenModeChanged();
+    abstract protected void updateControls();
+
+    @Override
+    public void onCreate(Bundle icicle) {
+        super.onCreate(icicle);
+        mContext = getActivity();
+        mConfig = getZenModeConfig();
+        if (DEBUG) Log.d(TAG, "Loaded mConfig=" + mConfig);
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        mConfig = getZenModeConfig();
+        updateControls();
+        mSettingsObserver.register();
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+        mSettingsObserver.unregister();
+    }
+
+    protected boolean setZenModeConfig(ZenModeConfig config) {
+        final INotificationManager nm = INotificationManager.Stub.asInterface(
+                ServiceManager.getService(Context.NOTIFICATION_SERVICE));
+        try {
+            final boolean success = nm.setZenModeConfig(config);
+            if (success) {
+                mConfig = config;
+                if (DEBUG) Log.d(TAG, "Saved mConfig=" + mConfig);
+                updateControls();
+            }
+            return success;
+        } catch (Exception e) {
+           Log.w(TAG, "Error calling NoMan", e);
+           return false;
+        }
+    }
+
+    private void updateZenModeConfig() {
+        final ZenModeConfig config = getZenModeConfig();
+        if (Objects.equals(config, mConfig)) return;
+        mConfig = config;
+        if (DEBUG) Log.d(TAG, "updateZenModeConfig mConfig=" + mConfig);
+        updateControls();
+    }
+
+    private ZenModeConfig getZenModeConfig() {
+        final INotificationManager nm = INotificationManager.Stub.asInterface(
+                ServiceManager.getService(Context.NOTIFICATION_SERVICE));
+        try {
+            return nm.getZenModeConfig();
+        } catch (Exception e) {
+           Log.w(TAG, "Error calling NoMan", e);
+           return new ZenModeConfig();
+        }
+    }
+
+    private final class SettingsObserver extends ContentObserver {
+        private final Uri ZEN_MODE_URI = Global.getUriFor(Global.ZEN_MODE);
+        private final Uri ZEN_MODE_CONFIG_ETAG_URI = Global.getUriFor(Global.ZEN_MODE_CONFIG_ETAG);
+
+        private SettingsObserver() {
+            super(mHandler);
+        }
+
+        public void register() {
+            getContentResolver().registerContentObserver(ZEN_MODE_URI, false, this);
+            getContentResolver().registerContentObserver(ZEN_MODE_CONFIG_ETAG_URI, false, this);
+        }
+
+        public void unregister() {
+            getContentResolver().unregisterContentObserver(this);
+        }
+
+        @Override
+        public void onChange(boolean selfChange, Uri uri) {
+            super.onChange(selfChange, uri);
+            if (ZEN_MODE_URI.equals(uri)) {
+                onZenModeChanged();
+            }
+            if (ZEN_MODE_CONFIG_ETAG_URI.equals(uri)) {
+                updateZenModeConfig();
+            }
+        }
+    }
+}