| /* |
| * 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.services.telephony; |
| |
| import android.os.AsyncResult; |
| import android.os.Handler; |
| import android.os.Message; |
| import android.telecom.PhoneAccount; |
| import android.telecom.PhoneAccountHandle; |
| import android.telecom.TelecomManager; |
| |
| import com.android.internal.telephony.Phone; |
| import com.android.internal.util.Preconditions; |
| import com.android.phone.PhoneUtils; |
| |
| /** |
| * Listens to phone's capabilities changed event and notifies Telecomm. One instance of these exists |
| * for each of the telephony-based call services. |
| */ |
| final class PstnPhoneCapabilitiesNotifier { |
| private static final int EVENT_VIDEO_CAPABILITIES_CHANGED = 1; |
| |
| /** |
| * Listener called when video capabilities have changed. |
| */ |
| public interface Listener { |
| public void onVideoCapabilitiesChanged(boolean isVideoCapable); |
| } |
| |
| private final Phone mPhone; |
| private final Listener mListener; |
| |
| private final Handler mHandler = new Handler() { |
| @Override |
| public void handleMessage(Message msg) { |
| switch (msg.what) { |
| case EVENT_VIDEO_CAPABILITIES_CHANGED: |
| handleVideoCapabilitesChanged((AsyncResult) msg.obj); |
| break; |
| default: |
| break; |
| } |
| } |
| }; |
| |
| /*package*/ |
| PstnPhoneCapabilitiesNotifier(Phone phone, Listener listener) { |
| Preconditions.checkNotNull(phone); |
| |
| mPhone = phone; |
| mListener = listener; |
| |
| registerForNotifications(); |
| } |
| |
| /*package*/ |
| void teardown() { |
| unregisterForNotifications(); |
| } |
| |
| private void registerForNotifications() { |
| if (mPhone != null) { |
| Log.d(this, "Registering: " + mPhone); |
| mPhone.registerForVideoCapabilityChanged(mHandler, EVENT_VIDEO_CAPABILITIES_CHANGED, |
| null); |
| } |
| } |
| |
| private void unregisterForNotifications() { |
| if (mPhone != null) { |
| Log.d(this, "Unregistering: " + mPhone); |
| mPhone.unregisterForVideoCapabilityChanged(mHandler); |
| } |
| } |
| |
| private void handleVideoCapabilitesChanged(AsyncResult ar) { |
| try { |
| boolean isVideoCapable = (Boolean) ar.result; |
| Log.i(this, "handleVideoCapabilitesChanged. Video capability - " + isVideoCapable); |
| mListener.onVideoCapabilitiesChanged(isVideoCapable); |
| } catch (Exception e) { |
| Log.w(this, "handleVideoCapabilitesChanged. Exception=" + e); |
| } |
| } |
| |
| private int newCapabilities(int capabilities, int capability, boolean set) { |
| if (set) { |
| capabilities |= capability; |
| } else { |
| capabilities &= ~capability; |
| } |
| return capabilities; |
| } |
| } |