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/*
* Copyright (C) 2023 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.example.android.vdmdemo.host;
import android.view.Display;
import androidx.annotation.GuardedBy;
import com.example.android.vdmdemo.common.RemoteEventProto.RemoteEvent;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
import javax.inject.Inject;
import javax.inject.Singleton;
@Singleton
final class DisplayRepository {
@GuardedBy("mDisplayRepository")
private final List<RemoteDisplay> mDisplayRepository = new ArrayList<>();
@Inject
DisplayRepository() {}
void addDisplay(RemoteDisplay display) {
synchronized (mDisplayRepository) {
mDisplayRepository.add(display);
}
}
void removeDisplay(int displayId) {
getDisplay(displayId).ifPresent(this::closeDisplay);
}
void removeDisplayByRemoteId(int remoteDisplayId) {
getDisplayByRemoteId(remoteDisplayId).ifPresent(this::closeDisplay);
}
void onDisplayChanged(int displayId) {
getDisplay(displayId).ifPresent(RemoteDisplay::onDisplayChanged);
}
boolean resetDisplay(RemoteEvent event) {
Optional<RemoteDisplay> display = getDisplayByRemoteId(event.getDisplayId());
display.ifPresent(d -> d.reset(event.getDisplayCapabilities()));
return display.isPresent();
}
void clear() {
synchronized (mDisplayRepository) {
mDisplayRepository.forEach(RemoteDisplay::close);
mDisplayRepository.clear();
}
}
int[] getDisplayIds() {
synchronized (mDisplayRepository) {
return mDisplayRepository.stream()
.mapToInt(RemoteDisplay::getDisplayId)
.toArray();
}
}
int[] getRemoteDisplayIds() {
synchronized (mDisplayRepository) {
return mDisplayRepository.stream()
.mapToInt(RemoteDisplay::getRemoteDisplayId)
.toArray();
}
}
int getRemoteDisplayId(int displayId) {
return getDisplay(displayId)
.map(RemoteDisplay::getRemoteDisplayId)
.orElse(Display.INVALID_DISPLAY);
}
Optional<RemoteDisplay> getDisplayByIndex(int index) {
synchronized (mDisplayRepository) {
if (index < 0 || index >= mDisplayRepository.size()) {
return Optional.empty();
}
return Optional.of(mDisplayRepository.get(index));
}
}
private Optional<RemoteDisplay> getDisplay(int displayId) {
synchronized (mDisplayRepository) {
return mDisplayRepository.stream()
.filter(display -> display.getDisplayId() == displayId)
.findFirst();
}
}
private Optional<RemoteDisplay> getDisplayByRemoteId(int remoteDisplayId) {
synchronized (mDisplayRepository) {
return mDisplayRepository.stream()
.filter(display -> display.getRemoteDisplayId() == remoteDisplayId)
.findFirst();
}
}
private void closeDisplay(RemoteDisplay display) {
synchronized (mDisplayRepository) {
mDisplayRepository.remove(display);
}
display.close();
}
}
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