| /* |
| * Copyright (C) 2014 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 android.service.notification; |
| |
| import android.annotation.SdkConstant; |
| import android.app.INotificationManager; |
| import android.app.Service; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.net.Uri; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.Message; |
| import android.os.ServiceManager; |
| import android.util.Log; |
| |
| /** |
| * A service that provides conditions about boolean state. |
| * <p>To extend this class, you must declare the service in your manifest file with |
| * the {@link android.Manifest.permission#BIND_CONDITION_PROVIDER_SERVICE} permission |
| * and include an intent filter with the {@link #SERVICE_INTERFACE} action. If you want users to be |
| * able to create and update conditions for this service to monitor, include the |
| * {@link #META_DATA_RULE_TYPE} and {@link #META_DATA_CONFIGURATION_ACTIVITY} tags and request the |
| * {@link android.Manifest.permission#ACCESS_NOTIFICATION_POLICY} permission. For example:</p> |
| * <pre> |
| * <service android:name=".MyConditionProvider" |
| * android:label="@string/service_name" |
| * android:permission="android.permission.BIND_CONDITION_PROVIDER_SERVICE"> |
| * <intent-filter> |
| * <action android:name="android.service.notification.ConditionProviderService" /> |
| * </intent-filter> |
| * <meta-data |
| * android:name="android.service.zen.automatic.ruleType" |
| * android:value="@string/my_condition_rule"> |
| * </meta-data> |
| * <meta-data |
| * android:name="android.service.zen.automatic.configurationActivity" |
| * android:value="com.my.package/.MyConditionConfigurationActivity"> |
| * </meta-data> |
| * </service></pre> |
| * |
| */ |
| public abstract class ConditionProviderService extends Service { |
| private final String TAG = ConditionProviderService.class.getSimpleName() |
| + "[" + getClass().getSimpleName() + "]"; |
| |
| private final H mHandler = new H(); |
| |
| private Provider mProvider; |
| private INotificationManager mNoMan; |
| |
| /** |
| * The {@link Intent} that must be declared as handled by the service. |
| */ |
| @SdkConstant(SdkConstant.SdkConstantType.SERVICE_ACTION) |
| public static final String SERVICE_INTERFACE |
| = "android.service.notification.ConditionProviderService"; |
| |
| /** |
| * The name of the {@code meta-data} tag containing a localized name of the type of zen rules |
| * provided by this service. |
| */ |
| public static final String META_DATA_RULE_TYPE = "android.service.zen.automatic.ruleType"; |
| |
| /** |
| * The name of the {@code meta-data} tag containing the {@link ComponentName} of an activity |
| * that allows users to configure the conditions provided by this service. |
| */ |
| public static final String META_DATA_CONFIGURATION_ACTIVITY = |
| "android.service.zen.automatic.configurationActivity"; |
| |
| /** |
| * The name of the {@code meta-data} tag containing the maximum number of rule instances that |
| * can be created for this rule type. Omit or enter a value <= 0 to allow unlimited instances. |
| */ |
| public static final String META_DATA_RULE_INSTANCE_LIMIT = |
| "android.service.zen.automatic.ruleInstanceLimit"; |
| |
| /** |
| * A String rule id extra passed to {@link #META_DATA_CONFIGURATION_ACTIVITY}. |
| */ |
| public static final String EXTRA_RULE_ID = "android.content.automatic.ruleId"; |
| |
| /** |
| * Called when this service is connected. |
| */ |
| abstract public void onConnected(); |
| |
| /** |
| * Called when the system wants to know the state of Conditions managed by this provider. |
| * |
| * Implementations should evaluate the state of all subscribed conditions, and provide updates |
| * by calling {@link #notifyCondition(Condition)} or {@link #notifyConditions(Condition...)}. |
| * @param relevance |
| */ |
| abstract public void onRequestConditions(int relevance); |
| |
| /** |
| * Called by the system when there is a new {@link Condition} to be managed by this provider. |
| * @param conditionId the Uri describing the criteria of the condition. |
| */ |
| abstract public void onSubscribe(Uri conditionId); |
| |
| /** |
| * Called by the system when a {@link Condition} has been deleted. |
| * @param conditionId the Uri describing the criteria of the deleted condition. |
| */ |
| abstract public void onUnsubscribe(Uri conditionId); |
| |
| private final INotificationManager getNotificationInterface() { |
| if (mNoMan == null) { |
| mNoMan = INotificationManager.Stub.asInterface( |
| ServiceManager.getService(Context.NOTIFICATION_SERVICE)); |
| } |
| return mNoMan; |
| } |
| |
| /** |
| * Informs the notification manager that the state of a Condition has changed. |
| * @param condition the condition that has changed. |
| */ |
| public final void notifyCondition(Condition condition) { |
| if (condition == null) return; |
| notifyConditions(new Condition[]{ condition }); |
| } |
| |
| /** |
| * Informs the notification manager that the state of one or more Conditions has changed. |
| * @param conditions the changed conditions. |
| */ |
| public final void notifyConditions(Condition... conditions) { |
| if (!isBound() || conditions == null) return; |
| try { |
| getNotificationInterface().notifyConditions(getPackageName(), mProvider, conditions); |
| } catch (android.os.RemoteException ex) { |
| Log.v(TAG, "Unable to contact notification manager", ex); |
| } |
| } |
| |
| @Override |
| public IBinder onBind(Intent intent) { |
| if (mProvider == null) { |
| mProvider = new Provider(); |
| } |
| return mProvider; |
| } |
| |
| private boolean isBound() { |
| if (mProvider == null) { |
| Log.w(TAG, "Condition provider service not yet bound."); |
| return false; |
| } |
| return true; |
| } |
| |
| private final class Provider extends IConditionProvider.Stub { |
| @Override |
| public void onConnected() { |
| mHandler.obtainMessage(H.ON_CONNECTED).sendToTarget(); |
| } |
| |
| @Override |
| public void onSubscribe(Uri conditionId) { |
| mHandler.obtainMessage(H.ON_SUBSCRIBE, conditionId).sendToTarget(); |
| } |
| |
| @Override |
| public void onUnsubscribe(Uri conditionId) { |
| mHandler.obtainMessage(H.ON_UNSUBSCRIBE, conditionId).sendToTarget(); |
| } |
| } |
| |
| private final class H extends Handler { |
| private static final int ON_CONNECTED = 1; |
| private static final int ON_SUBSCRIBE = 3; |
| private static final int ON_UNSUBSCRIBE = 4; |
| |
| @Override |
| public void handleMessage(Message msg) { |
| String name = null; |
| try { |
| switch(msg.what) { |
| case ON_CONNECTED: |
| name = "onConnected"; |
| onConnected(); |
| break; |
| case ON_SUBSCRIBE: |
| name = "onSubscribe"; |
| onSubscribe((Uri)msg.obj); |
| break; |
| case ON_UNSUBSCRIBE: |
| name = "onUnsubscribe"; |
| onUnsubscribe((Uri)msg.obj); |
| break; |
| } |
| } catch (Throwable t) { |
| Log.w(TAG, "Error running " + name, t); |
| } |
| } |
| } |
| } |