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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ash/arc/wallpaper/arc_wallpaper_service.h"
#include <stdlib.h>
#include <string>
#include <utility>
#include "ash/public/cpp/wallpaper/wallpaper_controller.h"
#include "base/functional/bind.h"
#include "base/logging.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/singleton.h"
#include "base/task/thread_pool.h"
#include "chrome/browser/ui/ash/wallpaper/wallpaper_controller_client_impl.h"
#include "chromeos/ash/experiences/arc/arc_browser_context_keyed_service_factory_base.h"
#include "chromeos/ash/experiences/arc/session/arc_bridge_service.h"
#include "components/account_id/account_id.h"
#include "components/user_manager/user.h"
#include "components/user_manager/user_manager.h"
#include "content/public/browser/browser_thread.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/gfx/codec/png_codec.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/image/image.h"
#include "ui/gfx/image/image_skia.h"
#include "ui/gfx/image/image_util.h"
using user_manager::UserManager;
namespace arc {
namespace {
constexpr char kAndroidWallpaperFilename[] = "android.jpg";
std::vector<uint8_t> EncodeImagePng(const gfx::ImageSkia& image) {
std::optional<std::vector<uint8_t>> result =
gfx::PNGCodec::FastEncodeBGRASkBitmap(*image.bitmap(),
/*discard_transparency=*/true);
return result.value_or(std::vector<uint8_t>());
}
// Singleton factory for ArcWallpaperService.
class ArcWallpaperServiceFactory
: public internal::ArcBrowserContextKeyedServiceFactoryBase<
ArcWallpaperService,
ArcWallpaperServiceFactory> {
public:
// Factory name used by ArcBrowserContextKeyedServiceFactoryBase.
static constexpr const char* kName = "ArcWallpaperServiceFactory";
static ArcWallpaperServiceFactory* GetInstance() {
return base::Singleton<ArcWallpaperServiceFactory>::get();
}
private:
friend base::DefaultSingletonTraits<ArcWallpaperServiceFactory>;
ArcWallpaperServiceFactory() = default;
~ArcWallpaperServiceFactory() override = default;
};
class DecodeRequestSenderImpl
: public ArcWallpaperService::DecodeRequestSender {
public:
void SendDecodeRequest(ImageDecoder::ImageRequest* request,
const std::vector<uint8_t>& data) override {
ImageDecoder::StartWithOptions(request, data, ImageDecoder::DEFAULT_CODEC,
true, gfx::Size());
}
};
} // namespace
class ArcWallpaperService::DecodeRequest : public ImageDecoder::ImageRequest {
public:
DecodeRequest(ArcWallpaperService* service, int32_t android_id)
: service_(service), android_id_(android_id) {}
DecodeRequest(const DecodeRequest&) = delete;
DecodeRequest& operator=(const DecodeRequest&) = delete;
~DecodeRequest() override = default;
// ImageDecoder::ImageRequest overrides.
void OnImageDecoded(const SkBitmap& bitmap) override {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
// Make the SkBitmap immutable as we won't modify it. This is important
// because otherwise it gets duplicated during painting, wasting memory.
SkBitmap immutable_bitmap(bitmap);
immutable_bitmap.setImmutable();
gfx::ImageSkia image = gfx::ImageSkia::CreateFrom1xBitmap(immutable_bitmap);
image.MakeThreadSafe();
service_->OnWallpaperDecoded(image, android_id_);
}
void OnDecodeImageFailed() override {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
DLOG(ERROR) << "Failed to decode wallpaper image.";
service_->NotifyWallpaperChangedAndReset(android_id_);
}
private:
// ArcWallpaperService owns DecodeRequest, so it will outlive this.
const raw_ptr<ArcWallpaperService> service_;
const int32_t android_id_;
};
ArcWallpaperService::DecodeRequestSender::~DecodeRequestSender() = default;
void ArcWallpaperService::SetDecodeRequestSenderForTesting(
std::unique_ptr<DecodeRequestSender> sender) {
decode_request_sender_ = std::move(sender);
}
// static
ArcWallpaperService* ArcWallpaperService::GetForBrowserContext(
content::BrowserContext* context) {
return ArcWallpaperServiceFactory::GetForBrowserContext(context);
}
ArcWallpaperService::ArcWallpaperService(content::BrowserContext* context,
ArcBridgeService* bridge_service)
: arc_bridge_service_(bridge_service),
decode_request_sender_(std::make_unique<DecodeRequestSenderImpl>()) {
arc_bridge_service_->wallpaper()->SetHost(this);
}
ArcWallpaperService::~ArcWallpaperService() {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
arc_bridge_service_->wallpaper()->SetHost(nullptr);
}
void ArcWallpaperService::SetWallpaper(const std::vector<uint8_t>& data,
int32_t wallpaper_id) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
if (wallpaper_id == 0)
wallpaper_id = -1;
// Previous request will be cancelled at destructor of
// ImageDecoder::ImageRequest.
decode_request_ = std::make_unique<DecodeRequest>(this, wallpaper_id);
DCHECK(decode_request_sender_);
decode_request_sender_->SendDecodeRequest(decode_request_.get(), data);
}
void ArcWallpaperService::SetDefaultWallpaper() {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
// Previous request will be cancelled at destructor of
// ImageDecoder::ImageRequest.
decode_request_.reset();
const user_manager::User* const primary_user =
UserManager::Get()->GetPrimaryUser();
ash::WallpaperController::Get()->SetDefaultWallpaper(
primary_user->GetAccountId(),
primary_user->is_active() /*show_wallpaper=*/, base::DoNothing());
}
void ArcWallpaperService::GetWallpaper(GetWallpaperCallback callback) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
gfx::ImageSkia image = ash::WallpaperController::Get()->GetWallpaperImage();
if (!image.isNull())
image.SetReadOnly();
base::ThreadPool::PostTaskAndReplyWithResult(
FROM_HERE, {base::MayBlock(), base::TaskPriority::BEST_EFFORT},
base::BindOnce(&EncodeImagePng, image), std::move(callback));
}
void ArcWallpaperService::OnWallpaperDecoded(const gfx::ImageSkia& image,
int32_t android_id) {
const AccountId account_id =
UserManager::Get()->GetPrimaryUser()->GetAccountId();
const bool result =
WallpaperControllerClientImpl::Get()->SetThirdPartyWallpaper(
account_id, kAndroidWallpaperFilename,
ash::WALLPAPER_LAYOUT_CENTER_CROPPED, image);
// Notify the Android side whether the request is going through or not.
if (result)
NotifyWallpaperChanged(android_id);
else
NotifyWallpaperChangedAndReset(android_id);
}
void ArcWallpaperService::NotifyWallpaperChanged(int android_id) {
mojom::WallpaperInstance* const wallpaper_instance =
ARC_GET_INSTANCE_FOR_METHOD(arc_bridge_service_->wallpaper(),
OnWallpaperChanged);
if (wallpaper_instance == nullptr)
return;
wallpaper_instance->OnWallpaperChanged(android_id);
}
void ArcWallpaperService::NotifyWallpaperChangedAndReset(int32_t android_id) {
// Invoke NotifyWallpaperChanged so that setWallpaper completes in Android
// side.
NotifyWallpaperChanged(android_id);
// Invoke NotifyWallpaperChanged with -1 so that Android side regards the
// wallpaper of |android_id_| is no longer used at Chrome side.
NotifyWallpaperChanged(-1);
}
// static
void ArcWallpaperService::EnsureFactoryBuilt() {
ArcWallpaperServiceFactory::GetInstance();
}
} // namespace arc
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