/*
* Copyright (C) 2013 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.telecom;
import android.annotation.SystemApi;
import android.annotation.SdkConstant;
import android.app.Service;
import android.content.Intent;
import android.os.Handler;
import android.os.IBinder;
import android.os.Looper;
import android.os.Message;
import android.view.Surface;
import com.android.internal.os.SomeArgs;
import com.android.internal.telecom.IInCallAdapter;
import com.android.internal.telecom.IInCallService;
import java.lang.String;
/**
* This service is implemented by any app that wishes to provide the user-interface for managing
* phone calls. Telecom binds to this service while there exists a live (active or incoming) call,
* and uses it to notify the in-call app of any live and and recently disconnected calls.
*
* {@hide}
*/
@SystemApi
public abstract class InCallService extends Service {
/**
* The {@link Intent} that must be declared as handled by the service.
*/
@SdkConstant(SdkConstant.SdkConstantType.SERVICE_ACTION)
public static final String SERVICE_INTERFACE = "android.telecom.InCallService";
private static final int MSG_SET_IN_CALL_ADAPTER = 1;
private static final int MSG_ADD_CALL = 2;
private static final int MSG_UPDATE_CALL = 3;
private static final int MSG_SET_POST_DIAL_WAIT = 4;
private static final int MSG_ON_AUDIO_STATE_CHANGED = 5;
private static final int MSG_BRING_TO_FOREGROUND = 6;
private static final int MSG_ON_CAN_ADD_CALL_CHANGED = 7;
/** Default Handler used to consolidate binder method calls onto a single thread. */
private final Handler mHandler = new Handler(Looper.getMainLooper()) {
@Override
public void handleMessage(Message msg) {
if (mPhone == null && msg.what != MSG_SET_IN_CALL_ADAPTER) {
return;
}
switch (msg.what) {
case MSG_SET_IN_CALL_ADAPTER:
mPhone = new Phone(new InCallAdapter((IInCallAdapter) msg.obj));
onPhoneCreated(mPhone);
break;
case MSG_ADD_CALL:
mPhone.internalAddCall((ParcelableCall) msg.obj);
break;
case MSG_UPDATE_CALL:
mPhone.internalUpdateCall((ParcelableCall) msg.obj);
break;
case MSG_SET_POST_DIAL_WAIT: {
SomeArgs args = (SomeArgs) msg.obj;
try {
String callId = (String) args.arg1;
String remaining = (String) args.arg2;
mPhone.internalSetPostDialWait(callId, remaining);
} finally {
args.recycle();
}
break;
}
case MSG_ON_AUDIO_STATE_CHANGED:
mPhone.internalAudioStateChanged((AudioState) msg.obj);
break;
case MSG_BRING_TO_FOREGROUND:
mPhone.internalBringToForeground(msg.arg1 == 1);
break;
case MSG_ON_CAN_ADD_CALL_CHANGED:
mPhone.internalSetCanAddCall(msg.arg1 == 1);
break;
default:
break;
}
}
};
/** Manages the binder calls so that the implementor does not need to deal with it. */
private final class InCallServiceBinder extends IInCallService.Stub {
@Override
public void setInCallAdapter(IInCallAdapter inCallAdapter) {
mHandler.obtainMessage(MSG_SET_IN_CALL_ADAPTER, inCallAdapter).sendToTarget();
}
@Override
public void addCall(ParcelableCall call) {
mHandler.obtainMessage(MSG_ADD_CALL, call).sendToTarget();
}
@Override
public void updateCall(ParcelableCall call) {
mHandler.obtainMessage(MSG_UPDATE_CALL, call).sendToTarget();
}
@Override
public void setPostDial(String callId, String remaining) {
// TODO: Unused
}
@Override
public void setPostDialWait(String callId, String remaining) {
SomeArgs args = SomeArgs.obtain();
args.arg1 = callId;
args.arg2 = remaining;
mHandler.obtainMessage(MSG_SET_POST_DIAL_WAIT, args).sendToTarget();
}
@Override
public void onAudioStateChanged(AudioState audioState) {
mHandler.obtainMessage(MSG_ON_AUDIO_STATE_CHANGED, audioState).sendToTarget();
}
@Override
public void bringToForeground(boolean showDialpad) {
mHandler.obtainMessage(MSG_BRING_TO_FOREGROUND, showDialpad ? 1 : 0, 0).sendToTarget();
}
@Override
public void onCanAddCallChanged(boolean canAddCall) {
mHandler.obtainMessage(MSG_ON_CAN_ADD_CALL_CHANGED, canAddCall ? 1 : 0, 0)
.sendToTarget();
}
}
private Phone mPhone;
public InCallService() {
}
@Override
public IBinder onBind(Intent intent) {
return new InCallServiceBinder();
}
@Override
public boolean onUnbind(Intent intent) {
if (mPhone != null) {
Phone oldPhone = mPhone;
mPhone = null;
oldPhone.destroy();
onPhoneDestroyed(oldPhone);
}
return false;
}
/**
* Obtain the {@code Phone} associated with this {@code InCallService}.
*
* @return The {@code Phone} object associated with this {@code InCallService}, or {@code null}
* if the {@code InCallService} is not in a state where it has an associated
* {@code Phone}.
*/
public Phone getPhone() {
return mPhone;
}
/**
* Invoked when the {@code Phone} has been created. This is a signal to the in-call experience
* to start displaying in-call information to the user. Each instance of {@code InCallService}
* will have only one {@code Phone}, and this method will be called exactly once in the lifetime
* of the {@code InCallService}.
*
* @param phone The {@code Phone} object associated with this {@code InCallService}.
*/
public void onPhoneCreated(Phone phone) {
}
/**
* Invoked when a {@code Phone} has been destroyed. This is a signal to the in-call experience
* to stop displaying in-call information to the user. This method will be called exactly once
* in the lifetime of the {@code InCallService}, and it will always be called after a previous
* call to {@link #onPhoneCreated(Phone)}.
*
* @param phone The {@code Phone} object associated with this {@code InCallService}.
*/
public void onPhoneDestroyed(Phone phone) {
}
/**
* Class to invoke functionality related to video calls.
* @hide
*/
public static abstract class VideoCall {
/**
* Sets a listener to invoke callback methods in the InCallUI after performing video
* telephony actions.
*
* @param videoCallListener The call video client.
*/
public abstract void setVideoCallListener(VideoCall.Listener videoCallListener);
/**
* Sets the camera to be used for video recording in a video call.
*
* @param cameraId The id of the camera.
*/
public abstract void setCamera(String cameraId);
/**
* Sets the surface to be used for displaying a preview of what the user's camera is
* currently capturing. When video transmission is enabled, this is the video signal which
* is sent to the remote device.
*
* @param surface The surface.
*/
public abstract void setPreviewSurface(Surface surface);
/**
* Sets the surface to be used for displaying the video received from the remote device.
*
* @param surface The surface.
*/
public abstract void setDisplaySurface(Surface surface);
/**
* Sets the device orientation, in degrees. Assumes that a standard portrait orientation of
* the device is 0 degrees.
*
* @param rotation The device orientation, in degrees.
*/
public abstract void setDeviceOrientation(int rotation);
/**
* Sets camera zoom ratio.
*
* @param value The camera zoom ratio.
*/
public abstract void setZoom(float value);
/**
* Issues a request to modify the properties of the current session. The request is sent to
* the remote device where it it handled by
* {@link VideoCall.Listener#onSessionModifyRequestReceived}.
* Some examples of session modification requests: upgrade call from audio to video,
* downgrade call from video to audio, pause video.
*
* @param requestProfile The requested call video properties.
*/
public abstract void sendSessionModifyRequest(VideoProfile requestProfile);
/**
* Provides a response to a request to change the current call session video
* properties.
* This is in response to a request the InCall UI has received via
* {@link VideoCall.Listener#onSessionModifyRequestReceived}.
* The response is handled on the remove device by
* {@link VideoCall.Listener#onSessionModifyResponseReceived}.
*
* @param responseProfile The response call video properties.
*/
public abstract void sendSessionModifyResponse(VideoProfile responseProfile);
/**
* Issues a request to the video provider to retrieve the camera capabilities.
* Camera capabilities are reported back to the caller via
* {@link VideoCall.Listener#onCameraCapabilitiesChanged(CameraCapabilities)}.
*/
public abstract void requestCameraCapabilities();
/**
* Issues a request to the video telephony framework to retrieve the cumulative data usage for
* the current call. Data usage is reported back to the caller via
* {@link VideoCall.Listener#onCallDataUsageChanged}.
*/
public abstract void requestCallDataUsage();
/**
* Provides the video telephony framework with the URI of an image to be displayed to remote
* devices when the video signal is paused.
*
* @param uri URI of image to display.
*/
public abstract void setPauseImage(String uri);
/**
* Listener class which invokes callbacks after video call actions occur.
* @hide
*/
public static abstract class Listener {
/**
* Called when a session modification request is received from the remote device.
* The remote request is sent via
* {@link Connection.VideoProvider#onSendSessionModifyRequest}. The InCall UI
* is responsible for potentially prompting the user whether they wish to accept the new
* call profile (e.g. prompt user if they wish to accept an upgrade from an audio to a
* video call) and should call
* {@link Connection.VideoProvider#onSendSessionModifyResponse} to indicate
* the video settings the user has agreed to.
*
* @param videoProfile The requested video call profile.
*/
public abstract void onSessionModifyRequestReceived(VideoProfile videoProfile);
/**
* Called when a response to a session modification request is received from the remote
* device. The remote InCall UI sends the response using
* {@link Connection.VideoProvider#onSendSessionModifyResponse}.
*
* @param status Status of the session modify request. Valid values are
* {@link Connection.VideoProvider#SESSION_MODIFY_REQUEST_SUCCESS},
* {@link Connection.VideoProvider#SESSION_MODIFY_REQUEST_FAIL},
* {@link Connection.VideoProvider#SESSION_MODIFY_REQUEST_INVALID}
* @param requestedProfile The original request which was sent to the remote device.
* @param responseProfile The actual profile changes made by the remote device.
*/
public abstract void onSessionModifyResponseReceived(int status,
VideoProfile requestedProfile, VideoProfile responseProfile);
/**
* Handles events related to the current session which the client may wish to handle.
* These are separate from requested changes to the session due to the underlying
* protocol or connection.
*
* Valid values are:
* {@link Connection.VideoProvider#SESSION_EVENT_RX_PAUSE},
* {@link Connection.VideoProvider#SESSION_EVENT_RX_RESUME},
* {@link Connection.VideoProvider#SESSION_EVENT_TX_START},
* {@link Connection.VideoProvider#SESSION_EVENT_TX_STOP},
* {@link Connection.VideoProvider#SESSION_EVENT_CAMERA_FAILURE},
* {@link Connection.VideoProvider#SESSION_EVENT_CAMERA_READY}
*
* @param event The event.
*/
public abstract void onCallSessionEvent(int event);
/**
* Handles a change to the video dimensions from the remote caller (peer). This could
* happen if, for example, the peer changes orientation of their device.
*
* @param width The updated peer video width.
* @param height The updated peer video height.
*/
public abstract void onPeerDimensionsChanged(int width, int height);
/**
* Handles an update to the total data used for the current session.
*
* @param dataUsage The updated data usage.
*/
public abstract void onCallDataUsageChanged(int dataUsage);
/**
* Handles a change in camera capabilities.
*
* @param cameraCapabilities The changed camera capabilities.
*/
public abstract void onCameraCapabilitiesChanged(
CameraCapabilities cameraCapabilities);
}
}
}
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