| /** |
| * Copyright (C) 2017 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.hardware.radio; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.os.Handler; |
| import android.os.Looper; |
| import android.util.Log; |
| |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Objects; |
| |
| /** |
| * Implements the ITunerCallback interface by forwarding calls to RadioTuner.Callback. |
| */ |
| class TunerCallbackAdapter extends ITunerCallback.Stub { |
| private static final String TAG = "BroadcastRadio.TunerCallbackAdapter"; |
| |
| private final Object mLock = new Object(); |
| @NonNull private final RadioTuner.Callback mCallback; |
| @NonNull private final Handler mHandler; |
| |
| @Nullable ProgramList mProgramList; |
| |
| // cache for deprecated methods |
| boolean mIsAntennaConnected = true; |
| @Nullable List<RadioManager.ProgramInfo> mLastCompleteList; |
| private boolean mDelayedCompleteCallback = false; |
| @Nullable RadioManager.ProgramInfo mCurrentProgramInfo; |
| |
| TunerCallbackAdapter(@NonNull RadioTuner.Callback callback, @Nullable Handler handler) { |
| mCallback = callback; |
| if (handler == null) { |
| mHandler = new Handler(Looper.getMainLooper()); |
| } else { |
| mHandler = handler; |
| } |
| } |
| |
| void close() { |
| synchronized (mLock) { |
| if (mProgramList != null) mProgramList.close(); |
| } |
| } |
| |
| void setProgramListObserver(@Nullable ProgramList programList, |
| @NonNull ProgramList.OnCloseListener closeListener) { |
| Objects.requireNonNull(closeListener); |
| synchronized (mLock) { |
| if (mProgramList != null) { |
| Log.w(TAG, "Previous program list observer wasn't properly closed, closing it..."); |
| mProgramList.close(); |
| } |
| mProgramList = programList; |
| if (programList == null) return; |
| programList.setOnCloseListener(() -> { |
| synchronized (mLock) { |
| if (mProgramList != programList) return; |
| mProgramList = null; |
| mLastCompleteList = null; |
| closeListener.onClose(); |
| } |
| }); |
| programList.addOnCompleteListener(() -> { |
| synchronized (mLock) { |
| if (mProgramList != programList) return; |
| mLastCompleteList = programList.toList(); |
| if (mDelayedCompleteCallback) { |
| Log.d(TAG, "Sending delayed onBackgroundScanComplete callback"); |
| sendBackgroundScanCompleteLocked(); |
| } |
| } |
| }); |
| } |
| } |
| |
| @Nullable List<RadioManager.ProgramInfo> getLastCompleteList() { |
| synchronized (mLock) { |
| return mLastCompleteList; |
| } |
| } |
| |
| void clearLastCompleteList() { |
| synchronized (mLock) { |
| mLastCompleteList = null; |
| } |
| } |
| |
| @Nullable RadioManager.ProgramInfo getCurrentProgramInformation() { |
| synchronized (mLock) { |
| return mCurrentProgramInfo; |
| } |
| } |
| |
| boolean isAntennaConnected() { |
| return mIsAntennaConnected; |
| } |
| |
| @Override |
| public void onError(int status) { |
| mHandler.post(() -> mCallback.onError(status)); |
| } |
| |
| @Override |
| public void onTuneFailed(int status, @Nullable ProgramSelector selector) { |
| mHandler.post(() -> mCallback.onTuneFailed(status, selector)); |
| |
| int errorCode; |
| switch (status) { |
| case RadioManager.STATUS_PERMISSION_DENIED: |
| case RadioManager.STATUS_DEAD_OBJECT: |
| errorCode = RadioTuner.ERROR_SERVER_DIED; |
| break; |
| case RadioManager.STATUS_ERROR: |
| case RadioManager.STATUS_NO_INIT: |
| case RadioManager.STATUS_BAD_VALUE: |
| case RadioManager.STATUS_INVALID_OPERATION: |
| Log.i(TAG, "Got an error with no mapping to the legacy API (" + status |
| + "), doing a best-effort conversion to ERROR_SCAN_TIMEOUT"); |
| // fall through |
| case RadioManager.STATUS_TIMED_OUT: |
| default: |
| errorCode = RadioTuner.ERROR_SCAN_TIMEOUT; |
| } |
| mHandler.post(() -> mCallback.onError(errorCode)); |
| } |
| |
| @Override |
| public void onConfigurationChanged(RadioManager.BandConfig config) { |
| mHandler.post(() -> mCallback.onConfigurationChanged(config)); |
| } |
| |
| @Override |
| public void onCurrentProgramInfoChanged(RadioManager.ProgramInfo info) { |
| if (info == null) { |
| Log.e(TAG, "ProgramInfo must not be null"); |
| return; |
| } |
| |
| synchronized (mLock) { |
| mCurrentProgramInfo = info; |
| } |
| |
| mHandler.post(() -> { |
| mCallback.onProgramInfoChanged(info); |
| |
| RadioMetadata metadata = info.getMetadata(); |
| if (metadata != null) mCallback.onMetadataChanged(metadata); |
| }); |
| } |
| |
| @Override |
| public void onTrafficAnnouncement(boolean active) { |
| mHandler.post(() -> mCallback.onTrafficAnnouncement(active)); |
| } |
| |
| @Override |
| public void onEmergencyAnnouncement(boolean active) { |
| mHandler.post(() -> mCallback.onEmergencyAnnouncement(active)); |
| } |
| |
| @Override |
| public void onAntennaState(boolean connected) { |
| mIsAntennaConnected = connected; |
| mHandler.post(() -> mCallback.onAntennaState(connected)); |
| } |
| |
| @Override |
| public void onBackgroundScanAvailabilityChange(boolean isAvailable) { |
| mHandler.post(() -> mCallback.onBackgroundScanAvailabilityChange(isAvailable)); |
| } |
| |
| private void sendBackgroundScanCompleteLocked() { |
| mDelayedCompleteCallback = false; |
| mHandler.post(() -> mCallback.onBackgroundScanComplete()); |
| } |
| |
| @Override |
| public void onBackgroundScanComplete() { |
| synchronized (mLock) { |
| if (mLastCompleteList == null) { |
| Log.i(TAG, "Got onBackgroundScanComplete callback, but the " |
| + "program list didn't get through yet. Delaying it..."); |
| mDelayedCompleteCallback = true; |
| return; |
| } |
| sendBackgroundScanCompleteLocked(); |
| } |
| } |
| |
| @Override |
| public void onProgramListChanged() { |
| mHandler.post(() -> mCallback.onProgramListChanged()); |
| } |
| |
| @Override |
| public void onProgramListUpdated(ProgramList.Chunk chunk) { |
| synchronized (mLock) { |
| if (mProgramList == null) return; |
| mProgramList.apply(Objects.requireNonNull(chunk)); |
| } |
| } |
| |
| @Override |
| public void onParametersUpdated(Map parameters) { |
| mHandler.post(() -> mCallback.onParametersUpdated(parameters)); |
| } |
| } |