mirror of
https://github.com/encounter/engine.git
synced 2026-03-30 11:09:55 -07:00
Chinmay Garde
71 lines
2.1 KiB
C++
71 lines
2.1 KiB
C++
// Copyright 2018 The Fuchsia Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#pragma once
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#include <fuchsia/cpp/views_v1.h>
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#include <fuchsia/cpp/views_v1_token.h>
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#include "flutter/shell/common/shell.h"
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#include "isolate_configurator.h"
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#include "lib/app/cpp/application_context.h"
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#include "lib/fsl/threading/thread.h"
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#include "lib/fxl/macros.h"
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#include "lib/fxl/memory/weak_ptr.h"
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#include "lib/ui/flutter/sdk_ext/src/natives.h"
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namespace flutter {
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// Represents an instance of running Flutter engine along with the threads that
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// host the same.
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class Engine final : public mozart::NativesDelegate {
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public:
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class Delegate {
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public:
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virtual void OnEngineTerminate(const Engine* holder) = 0;
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};
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Engine(Delegate& delegate,
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std::string thread_label,
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component::ApplicationContext& application_context,
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blink::Settings settings,
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fxl::RefPtr<blink::DartSnapshot> isolate_snapshot,
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fidl::InterfaceRequest<views_v1_token::ViewOwner> view_owner,
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UniqueFDIONS fdio_ns,
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fidl::InterfaceRequest<component::ServiceProvider>
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outgoing_services_request);
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~Engine();
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// Returns the Dart return code for the root isolate if one is present. This
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// call is thread safe and synchronous. This call must be made infrequently.
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std::pair<bool, uint32_t> GetEngineReturnCode() const;
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private:
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Delegate& delegate_;
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const std::string thread_label_;
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blink::Settings settings_;
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std::array<fsl::Thread, 3> host_threads_;
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std::unique_ptr<IsolateConfigurator> isolate_configurator_;
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std::unique_ptr<shell::Shell> shell_;
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fxl::WeakPtrFactory<Engine> weak_factory_;
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void OnMainIsolateStart();
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void OnMainIsolateShutdown();
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void Terminate();
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void OnSessionMetricsDidChange(double device_pixel_ratio);
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// |mozart::NativesDelegate|
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void OfferServiceProvider(
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fidl::InterfaceHandle<component::ServiceProvider> service_provider,
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fidl::VectorPtr<fidl::StringPtr> services);
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FXL_DISALLOW_COPY_AND_ASSIGN(Engine);
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};
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} // namespace flutter
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