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Support multiple DefaultDrmSessionManager listeners.
------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=190236842
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139 changes: 139 additions & 0 deletions
139
.../core/src/main/java/com/google/android/exoplayer2/drm/DefaultDrmSessionEventListener.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,139 @@ | ||
| /* | ||
| * Copyright (C) 2018 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.google.android.exoplayer2.drm; | ||
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| import android.os.Handler; | ||
| import com.google.android.exoplayer2.Player; | ||
| import java.util.concurrent.CopyOnWriteArrayList; | ||
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| /** Listener of {@link DefaultDrmSessionManager} events. */ | ||
| public interface DefaultDrmSessionEventListener { | ||
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| /** Called each time keys are loaded. */ | ||
| void onDrmKeysLoaded(); | ||
|
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| /** | ||
| * Called when a drm error occurs. | ||
| * | ||
| * <p>This method being called does not indicate that playback has failed, or that it will fail. | ||
| * The player may be able to recover from the error and continue. Hence applications should | ||
| * <em>not</em> implement this method to display a user visible error or initiate an application | ||
| * level retry ({@link Player.EventListener#onPlayerError} is the appropriate place to implement | ||
| * such behavior). This method is called to provide the application with an opportunity to log the | ||
| * error if it wishes to do so. | ||
| * | ||
| * @param error The corresponding exception. | ||
| */ | ||
| void onDrmSessionManagerError(Exception error); | ||
|
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| /** Called each time offline keys are restored. */ | ||
| void onDrmKeysRestored(); | ||
|
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| /** Called each time offline keys are removed. */ | ||
| void onDrmKeysRemoved(); | ||
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| /** Dispatches drm events to all registered listeners. */ | ||
| final class EventDispatcher { | ||
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| private final CopyOnWriteArrayList<HandlerAndListener> listeners; | ||
|
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| /** Creates event dispatcher. */ | ||
| public EventDispatcher() { | ||
| listeners = new CopyOnWriteArrayList<>(); | ||
| } | ||
|
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| /** Adds listener to event dispatcher. */ | ||
| public void addListener(Handler handler, DefaultDrmSessionEventListener eventListener) { | ||
| listeners.add(new HandlerAndListener(handler, eventListener)); | ||
| } | ||
|
|
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| /** Removes listener from event dispatcher. */ | ||
| public void removeListener(DefaultDrmSessionEventListener eventListener) { | ||
| for (HandlerAndListener handlerAndListener : listeners) { | ||
| if (handlerAndListener.listener == eventListener) { | ||
| listeners.remove(handlerAndListener); | ||
| } | ||
| } | ||
| } | ||
|
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| /** Dispatches {@link DefaultDrmSessionEventListener#onDrmKeysLoaded()}. */ | ||
| public void drmKeysLoaded() { | ||
| for (HandlerAndListener handlerAndListener : listeners) { | ||
| final DefaultDrmSessionEventListener listener = handlerAndListener.listener; | ||
| handlerAndListener.handler.post( | ||
| new Runnable() { | ||
| @Override | ||
| public void run() { | ||
| listener.onDrmKeysLoaded(); | ||
| } | ||
| }); | ||
| } | ||
| } | ||
|
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| /** Dispatches {@link DefaultDrmSessionEventListener#onDrmSessionManagerError(Exception)}. */ | ||
| public void drmSessionManagerError(final Exception e) { | ||
| for (HandlerAndListener handlerAndListener : listeners) { | ||
| final DefaultDrmSessionEventListener listener = handlerAndListener.listener; | ||
| handlerAndListener.handler.post( | ||
| new Runnable() { | ||
| @Override | ||
| public void run() { | ||
| listener.onDrmSessionManagerError(e); | ||
| } | ||
| }); | ||
| } | ||
| } | ||
|
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| /** Dispatches {@link DefaultDrmSessionEventListener#onDrmKeysRestored()}. */ | ||
| public void drmKeysRestored() { | ||
| for (HandlerAndListener handlerAndListener : listeners) { | ||
| final DefaultDrmSessionEventListener listener = handlerAndListener.listener; | ||
| handlerAndListener.handler.post( | ||
| new Runnable() { | ||
| @Override | ||
| public void run() { | ||
| listener.onDrmKeysRestored(); | ||
| } | ||
| }); | ||
| } | ||
| } | ||
|
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| /** Dispatches {@link DefaultDrmSessionEventListener#onDrmKeysRemoved()}. */ | ||
| public void drmKeysRemoved() { | ||
| for (HandlerAndListener handlerAndListener : listeners) { | ||
| final DefaultDrmSessionEventListener listener = handlerAndListener.listener; | ||
| handlerAndListener.handler.post( | ||
| new Runnable() { | ||
| @Override | ||
| public void run() { | ||
| listener.onDrmKeysRemoved(); | ||
| } | ||
| }); | ||
| } | ||
| } | ||
|
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| private static final class HandlerAndListener { | ||
|
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| public final Handler handler; | ||
| public final DefaultDrmSessionEventListener listener; | ||
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| public HandlerAndListener(Handler handler, DefaultDrmSessionEventListener eventListener) { | ||
| this.handler = handler; | ||
| this.listener = eventListener; | ||
| } | ||
| } | ||
| } | ||
| } |
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