Adding in-call service code.
Adding the in-call service binding code and the in-call adapter.
Change-Id: I034652001022ac26674096f2a91b09fe12e8fe1a
diff --git a/src/com/android/telecomm/InCallController.java b/src/com/android/telecomm/InCallController.java
new file mode 100644
index 0000000..7b48d95
--- /dev/null
+++ b/src/com/android/telecomm/InCallController.java
@@ -0,0 +1,163 @@
+/*
+ * 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 com.android.telecomm;
+
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.content.ServiceConnection;
+import android.os.IBinder;
+import android.os.RemoteException;
+import android.telecomm.IInCallService;
+import android.util.Log;
+
+/**
+ * Binds to {@link IInCallService} and provides the service to {@link CallsManager} through which it
+ * can send updates to the in-call app. This class is created and owned by CallsManager and retains
+ * a binding to the {@link IInCallService} (implemented by the in-call app) until CallsManager
+ * explicitly disconnects it. CallsManager starts the connection by calling {@link #connect} and
+ * retains the connection as long as it has calls which need UI. When all calls are disconnected,
+ * CallsManager will invoke {@link #disconnect} to sever the binding until the in-call UI is needed
+ * again.
+ */
+public final class InCallController {
+ /**
+ * Used to bind to the in-call app and triggers the start of communication between
+ * CallsManager and in-call app.
+ */
+ private class InCallServiceConnection implements ServiceConnection {
+ /** {@inheritDoc} */
+ @Override public void onServiceConnected(ComponentName name, IBinder service) {
+ onConnected(service);
+ }
+
+ /** {@inheritDoc} */
+ @Override public void onServiceDisconnected(ComponentName name) {
+ onDisconnected();
+ }
+ }
+
+ private static final String TAG = InCallController.class.getSimpleName();
+
+ /**
+ * Package name of the in-call app. Although in-call code in kept in its own namespace, it is
+ * ultimately compiled into the dialer apk, hence the difference in namespaces between this and
+ * {@link IN_CALL_SERVICE_CLASS_NAME}.
+ * TODO(santoscordon): Change this into config.xml resource entry.
+ */
+ private static final String IN_CALL_PACKAGE_NAME = "com.google.android.dialer";
+
+ /**
+ * Class name of the component within in-call app which implements {@link IInCallService}.
+ */
+ private static final String IN_CALL_SERVICE_CLASS_NAME = "com.android.incall.InCallService";
+
+ /** Maintains a binding connection to the in-call app. */
+ private final InCallServiceConnection mConnection = new InCallServiceConnection();
+
+ private final CallsManager mCallsManager;
+
+ /** The in-call app implementation, see {@link IInCallService}. */
+ private IInCallService mInCallService;
+
+ /**
+ * Persists the specified parameters.
+ *
+ * @param callsManager The singleton calls manager instance.
+ */
+ InCallController(CallsManager callsManager) {
+ mCallsManager = callsManager;
+ }
+
+ // TODO(santoscordon): May be better to expose the IInCallService methods directly from this
+ // class as its own method to make the CallsManager code easier to read.
+ IInCallService getService() {
+ return mInCallService;
+ }
+
+ /**
+ * Binds to the in-call app if not already connected by binding directly to the saved
+ * component name of the {@link IInCallService} implementation.
+ *
+ * @param context The application context.
+ */
+ void connect(Context context) {
+ ThreadUtil.checkOnMainThread();
+ if (mInCallService == null) {
+ ComponentName component =
+ new ComponentName(IN_CALL_PACKAGE_NAME, IN_CALL_SERVICE_CLASS_NAME);
+
+ Intent serviceIntent = new Intent(IInCallService.class.getName());
+ serviceIntent.setComponent(component);
+
+ if (!context.bindService(serviceIntent, mConnection, Context.BIND_AUTO_CREATE)) {
+ Log.e(TAG, "Could not connect to the in-call app (" + component + ")");
+
+ // TODO(santoscordon): Implement retry or fall-back-to-default logic.
+ }
+ }
+ }
+
+ /**
+ * Unbinds an existing bound connection to the in-call app.
+ *
+ * @param context The application context.
+ */
+ void disconnect(Context context) {
+ ThreadUtil.checkOnMainThread();
+ if (mInCallService != null) {
+ context.unbindService(mConnection);
+ mInCallService = null;
+ }
+ }
+
+ /**
+ * Persists the {@link IInCallService} instance and starts the communication between
+ * CallsManager and in-call app by sending the first update to in-call app. This method is
+ * called after a successful binding connection is established.
+ *
+ * @param service The {@link IInCallService} implementation.
+ */
+ private void onConnected(IBinder service) {
+ ThreadUtil.checkOnMainThread();
+ mInCallService = IInCallService.Stub.asInterface(service);
+
+ try {
+ mInCallService.setInCallAdapter(new InCallAdapter(mCallsManager));
+ } catch (RemoteException e) {
+ Log.e(TAG, "Failed to set the in-call adapter.", e);
+ mInCallService = null;
+ }
+
+ update();
+ }
+
+ /**
+ * Cleans up the instance of in-call app after the service has been unbound.
+ */
+ private void onDisconnected() {
+ ThreadUtil.checkOnMainThread();
+ mInCallService = null;
+ }
+
+ /**
+ * Gathers the list of current calls from CallsManager and sends them to the in-call app.
+ */
+ private void update() {
+ // TODO(santoscordon): mInCallService.sendCalls(CallsManager.getCallList());
+ }
+}