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// Copyright 2018 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/screen_capture/arc_screen_capture_bridge.h"
#include <utility>
#include <vector>
#include "ash/shell.h"
#include "base/command_line.h"
#include "base/functional/bind.h"
#include "base/memory/singleton.h"
#include "base/strings/utf_string_conversions.h"
#include "base/system/sys_info.h"
#include "chrome/browser/ash/arc/screen_capture/arc_screen_capture_session.h"
#include "chrome/browser/media/webrtc/desktop_media_list_ash.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 "content/public/browser/browser_thread.h"
#include "ui/base/mojom/ui_base_types.mojom-shared.h"
namespace {
constexpr char kChromeOSReleaseTrack[] = "CHROMEOS_RELEASE_TRACK";
constexpr char kTestImageRelease[] = "testimage";
} // namespace
namespace arc {
namespace {
// Singleton factory for ArcScreenCaptureBridge
class ArcScreenCaptureBridgeFactory
: public internal::ArcBrowserContextKeyedServiceFactoryBase<
ArcScreenCaptureBridge,
ArcScreenCaptureBridgeFactory> {
public:
// Factory name used by ArcBrowserContextKeyedServiceFactoryBase.
static constexpr const char* kName = "ArcScreenCaptureBridgeFactory";
static ArcScreenCaptureBridgeFactory* GetInstance() {
return base::Singleton<ArcScreenCaptureBridgeFactory>::get();
}
private:
friend base::DefaultSingletonTraits<ArcScreenCaptureBridgeFactory>;
ArcScreenCaptureBridgeFactory() = default;
~ArcScreenCaptureBridgeFactory() override = default;
};
} // namespace
// static
ArcScreenCaptureBridge* ArcScreenCaptureBridge::GetForBrowserContext(
content::BrowserContext* context) {
return ArcScreenCaptureBridgeFactory::GetForBrowserContext(context);
}
ArcScreenCaptureBridge::PendingCaptureParams::PendingCaptureParams(
std::unique_ptr<DesktopMediaPicker> picker,
const std::string& display_name,
RequestPermissionCallback callback)
: picker(std::move(picker)),
display_name(display_name),
callback(std::move(callback)) {}
ArcScreenCaptureBridge::PendingCaptureParams::~PendingCaptureParams() = default;
ArcScreenCaptureBridge::GrantedCaptureParams::GrantedCaptureParams(
const std::string& display_name,
content::DesktopMediaID desktop_id,
bool enable_notification)
: display_name(display_name),
desktop_id(desktop_id),
enable_notification(enable_notification) {}
ArcScreenCaptureBridge::GrantedCaptureParams::~GrantedCaptureParams() = default;
ArcScreenCaptureBridge::ArcScreenCaptureBridge(content::BrowserContext* context,
ArcBridgeService* bridge_service)
: arc_bridge_service_(bridge_service) {
arc_bridge_service_->screen_capture()->SetHost(this);
}
ArcScreenCaptureBridge::~ArcScreenCaptureBridge() {
arc_bridge_service_->screen_capture()->SetHost(nullptr);
}
void ArcScreenCaptureBridge::RequestPermission(
const std::string& display_name,
const std::string& package_name,
RequestPermissionCallback callback) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
std::unique_ptr<DesktopMediaPicker> picker =
DesktopMediaPicker::Create(nullptr);
std::vector<std::unique_ptr<DesktopMediaList>> source_lists;
source_lists.emplace_back(
std::make_unique<DesktopMediaListAsh>(DesktopMediaList::Type::kScreen));
const std::u16string display_name16 = base::UTF8ToUTF16(display_name);
DesktopMediaPicker::Params picker_params{
DesktopMediaPicker::Params::RequestSource::kArcScreenCapture};
picker_params.context = ash::Shell::GetRootWindowForDisplayId(
display::Screen::GetScreen()->GetPrimaryDisplay().id());
picker_params.modality = ui::mojom::ModalType::kSystem;
picker_params.app_name = display_name16;
picker_params.target_name = display_name16;
if (pending_permissions_map_.find(package_name) !=
pending_permissions_map_.end()) {
LOG(ERROR) << "Screen capture permissions requested while pending request "
"was active: "
<< package_name;
std::move(callback).Run(false);
return;
}
pending_permissions_map_.emplace(
std::piecewise_construct, std::forward_as_tuple(package_name),
std::forward_as_tuple(std::move(picker), display_name,
std::move(callback)));
pending_permissions_map_.find(package_name)
->second.picker->Show(
picker_params, std::move(source_lists),
base::BindOnce(&ArcScreenCaptureBridge::PermissionPromptCallback,
base::Unretained(this), package_name));
}
void ArcScreenCaptureBridge::PermissionPromptCallback(
const std::string& package_name,
content::DesktopMediaID desktop_id) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
auto found = pending_permissions_map_.find(package_name);
if (found == pending_permissions_map_.end()) {
// This is normal if the dialog was accepted from testing.
return;
}
if (desktop_id.is_null()) {
std::move(found->second.callback).Run(false);
pending_permissions_map_.erase(found);
return;
}
// Remove any existing entry since emplace will not overwrite it.
// This is OK since these persist forever and this may be requested again with
// a different desktop.
granted_permissions_map_.erase(package_name);
granted_permissions_map_.emplace(
package_name, GrantedCaptureParams(found->second.display_name, desktop_id,
true /* enable notification */));
std::move(found->second.callback).Run(true);
pending_permissions_map_.erase(found);
}
void ArcScreenCaptureBridge::TestModeAcceptPermission(
const std::string& package_name) {
std::string track;
if (!base::SysInfo::GetLsbReleaseValue(kChromeOSReleaseTrack, &track))
return;
if (track.find(kTestImageRelease) == std::string::npos)
return;
// We are a testimage build, so this call is allowed. To do this, invoke the
// Mojo callback after taking it from our map. This will prevent it from
// getting called when we forcibly close the dialog.
auto found = pending_permissions_map_.find(package_name);
if (found == pending_permissions_map_.end()) {
LOG(ERROR) << "Requested to accept dialog for testing, but dialog not "
"being shown for "
<< package_name;
return;
}
granted_permissions_map_.erase(package_name);
granted_permissions_map_.emplace(
package_name,
GrantedCaptureParams(found->second.display_name,
content::DesktopMediaID::RegisterNativeWindow(
content::DesktopMediaID::TYPE_SCREEN,
ash::Shell::GetPrimaryRootWindow()),
false /* enable notification */));
std::move(found->second.callback).Run(true);
pending_permissions_map_.erase(found);
// The dialog will be closed when 'found' goes out of scope and is
// destructed and the dialog within it is destructed.
// If we're auto-sharing the screen in test mode, we don't want to record
// the cursor, so turn it off.
ash::Shell::Get()->cursor_manager()->HideCursor();
}
void ArcScreenCaptureBridge::OpenSession(
mojo::PendingRemote<mojom::ScreenCaptureSessionNotifier> notifier,
const std::string& package_name,
const gfx::Size& size,
OpenSessionCallback callback) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
auto found = granted_permissions_map_.find(package_name);
if (found == granted_permissions_map_.end()) {
LOG(ERROR) << "Attempt to open screen capture session without granted "
"permissions for package "
<< package_name;
std::move(callback).Run(mojo::NullRemote());
return;
}
// TODO(crbug.com/41454219): Remove this temporary conversion to InterfacePtr
// once OpenSession callback from
// //chromeos/ash/experiences/arc/mojom/screen_capture.mojom could take
// pending_remote directly. Refer to crrev.com/c/1868870.
mojo::PendingRemote<mojom::ScreenCaptureSession>
screen_capture_session_remote(ArcScreenCaptureSession::Create(
std::move(notifier), found->second.display_name,
found->second.desktop_id, size, found->second.enable_notification));
std::move(callback).Run(std::move(screen_capture_session_remote));
}
// static
void ArcScreenCaptureBridge::EnsureFactoryBuilt() {
ArcScreenCaptureBridgeFactory::GetInstance();
}
} // namespace arc
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