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// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef FLUTTER_SHELL_PLATFORM_FUCHSIA_COMPONENT_H_
#define FLUTTER_SHELL_PLATFORM_FUCHSIA_COMPONENT_H_
#include <array>
#include <memory>
#include <set>
#include <fuchsia/io/cpp/fidl.h>
#include <fuchsia/sys/cpp/fidl.h>
#include <fuchsia/ui/app/cpp/fidl.h>
#include <lib/async-loop/cpp/loop.h>
#include <lib/async/default.h>
#include <lib/fidl/cpp/binding_set.h>
#include <lib/fidl/cpp/interface_request.h>
#include <lib/fit/function.h>
#include <lib/sys/cpp/service_directory.h>
#include <lib/vfs/cpp/pseudo_dir.h>
#include <lib/zx/eventpair.h>
#include "engine.h"
#include "flutter/common/settings.h"
#include "flutter/fml/macros.h"
#include "thread.h"
#include "unique_fdio_ns.h"
namespace flutter_runner {
class Application;
struct ActiveApplication {
std::unique_ptr<Thread> thread;
std::unique_ptr<Application> application;
ActiveApplication& operator=(ActiveApplication&& other) noexcept {
if (this != &other) {
this->thread.reset(other.thread.release());
this->application.reset(other.application.release());
}
return *this;
}
~ActiveApplication() = default;
};
// Represents an instance of a Flutter application that contains one of more
// Flutter engine instances.
class Application final : public Engine::Delegate,
public fuchsia::sys::ComponentController,
public fuchsia::ui::app::ViewProvider {
public:
using TerminationCallback = fit::function<void(const Application*)>;
// Creates a dedicated thread to run the application and constructions the
// application on it. The application can be accessed only on this thread.
// This is a synchronous operation.
static ActiveApplication Create(
TerminationCallback termination_callback,
fuchsia::sys::Package package,
fuchsia::sys::StartupInfo startup_info,
std::shared_ptr<sys::ServiceDirectory> runner_incoming_services,
fidl::InterfaceRequest<fuchsia::sys::ComponentController> controller);
// Must be called on the same thread returned from the create call. The thread
// may be collected after.
~Application();
const std::string& GetDebugLabel() const;
#if !defined(DART_PRODUCT)
void WriteProfileToTrace() const;
#endif // !defined(DART_PRODUCT)
private:
flutter::Settings settings_;
TerminationCallback termination_callback_;
const std::string debug_label_;
UniqueFDIONS fdio_ns_ = UniqueFDIONSCreate();
fml::UniqueFD application_directory_;
fml::UniqueFD application_assets_directory_;
fidl::Binding<fuchsia::sys::ComponentController> application_controller_;
fuchsia::io::DirectoryPtr directory_ptr_;
fuchsia::io::NodePtr cloned_directory_ptr_;
fidl::InterfaceRequest<fuchsia::io::Directory> directory_request_;
std::unique_ptr<vfs::PseudoDir> outgoing_dir_;
std::shared_ptr<sys::ServiceDirectory> svc_;
std::shared_ptr<sys::ServiceDirectory> runner_incoming_services_;
fidl::BindingSet<fuchsia::ui::app::ViewProvider> shells_bindings_;
fml::RefPtr<flutter::DartSnapshot> isolate_snapshot_;
std::set<std::unique_ptr<Engine>> shell_holders_;
std::pair<bool, uint32_t> last_return_code_;
fml::WeakPtrFactory<Application> weak_factory_;
Application(
TerminationCallback termination_callback,
fuchsia::sys::Package package,
fuchsia::sys::StartupInfo startup_info,
std::shared_ptr<sys::ServiceDirectory> runner_incoming_services,
fidl::InterfaceRequest<fuchsia::sys::ComponentController> controller);
// |fuchsia::sys::ComponentController|
void Kill() override;
// |fuchsia::sys::ComponentController|
void Detach() override;
// |fuchsia::ui::app::ViewProvider|
void CreateView(
zx::eventpair view_token,
fidl::InterfaceRequest<fuchsia::sys::ServiceProvider> incoming_services,
fidl::InterfaceHandle<fuchsia::sys::ServiceProvider> outgoing_services)
override;
// |flutter::Engine::Delegate|
void OnEngineTerminate(const Engine* holder) override;
void AttemptVMLaunchWithCurrentSettings(const flutter::Settings& settings);
FML_DISALLOW_COPY_AND_ASSIGN(Application);
};
} // namespace flutter_runner
#endif // FLUTTER_SHELL_PLATFORM_FUCHSIA_COMPONENT_H_