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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_ENGINE_H_
#define FLUTTER_SHELL_PLATFORM_FUCHSIA_ENGINE_H_
#include <fuchsia/intl/cpp/fidl.h>
#include <fuchsia/io/cpp/fidl.h>
#include <fuchsia/ui/gfx/cpp/fidl.h>
#include <fuchsia/ui/views/cpp/fidl.h>
#include <lib/async-loop/cpp/loop.h>
#include <lib/sys/cpp/service_directory.h>
#include <lib/zx/event.h>
#include "flutter/fml/macros.h"
#include "flutter/shell/common/shell.h"
#include "isolate_configurator.h"
#include "thread.h"
namespace flutter_runner {
// Represents an instance of running Flutter engine along with the threads
// that host the same.
class Engine final {
public:
class Delegate {
public:
virtual void OnEngineTerminate(const Engine* holder) = 0;
};
Engine(Delegate& delegate,
std::string thread_label,
std::shared_ptr<sys::ServiceDirectory> svc,
std::shared_ptr<sys::ServiceDirectory> runner_services,
flutter::Settings settings,
fml::RefPtr<const flutter::DartSnapshot> isolate_snapshot,
fuchsia::ui::views::ViewToken view_token,
UniqueFDIONS fdio_ns,
fidl::InterfaceRequest<fuchsia::io::Directory> directory_request);
~Engine();
// Returns the Dart return code for the root isolate if one is present. This
// call is thread safe and synchronous. This call must be made infrequently.
std::pair<bool, uint32_t> GetEngineReturnCode() const;
#if !defined(DART_PRODUCT)
void WriteProfileToTrace() const;
#endif // !defined(DART_PRODUCT)
private:
Delegate& delegate_;
const std::string thread_label_;
flutter::Settings settings_;
std::array<std::unique_ptr<Thread>, 3> threads_;
std::unique_ptr<IsolateConfigurator> isolate_configurator_;
std::unique_ptr<flutter::Shell> shell_;
zx::event vsync_event_;
fml::WeakPtrFactory<Engine> weak_factory_;
// A stub for the FIDL protocol fuchsia.intl.PropertyProvider.
fuchsia::intl::PropertyProviderPtr intl_property_provider_;
void OnMainIsolateStart();
void OnMainIsolateShutdown();
void Terminate();
void OnSessionMetricsDidChange(const fuchsia::ui::gfx::Metrics& metrics);
void OnSessionSizeChangeHint(float width_change_factor,
float height_change_factor);
void OnDebugWireframeSettingsChanged(bool enabled);
FML_DISALLOW_COPY_AND_ASSIGN(Engine);
};
} // namespace flutter_runner
#endif // FLUTTER_SHELL_PLATFORM_FUCHSIA_ENGINE_H_