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e0a24d6369
Build rules still reference creating share snapshot data and instructions. This makes the engine to always pass them as empty to the dart vm. To be followed up with a change to alter the build rules to stop referencing the shared snapshots. This is not being used currently and the fact that the runner will be built outside of the flutter tree means that the apps will not have much to gain via shared snapshots. The rationale behind this change is to partially make migrating the runner out of topaz tree easier. Change-Id: Ibc4dd6a298d65082416af753522f5a17c88a750a
80 lines
2.5 KiB
C++
80 lines
2.5 KiB
C++
// Copyright 2013 The Flutter 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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#ifndef FLUTTER_SHELL_PLATFORM_FUCHSIA_ENGINE_H_
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#define FLUTTER_SHELL_PLATFORM_FUCHSIA_ENGINE_H_
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#include <fuchsia/io/cpp/fidl.h>
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#include <fuchsia/ui/gfx/cpp/fidl.h>
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#include <fuchsia/ui/views/cpp/fidl.h>
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#include <lib/async-loop/cpp/loop.h>
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#include <lib/sys/cpp/service_directory.h>
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#include <lib/zx/event.h>
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#include "flutter/fml/macros.h"
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#include "flutter/shell/common/shell.h"
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#include "isolate_configurator.h"
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#include "thread.h"
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namespace flutter_runner {
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// Represents an instance of running Flutter engine along with the threads
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// that host the same.
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class Engine final {
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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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std::shared_ptr<sys::ServiceDirectory> svc,
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std::shared_ptr<sys::ServiceDirectory> runner_services,
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flutter::Settings settings,
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fml::RefPtr<const flutter::DartSnapshot> isolate_snapshot,
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fuchsia::ui::views::ViewToken view_token,
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fuchsia::ui::views::ViewRefControl view_ref_control,
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fuchsia::ui::views::ViewRef view_ref,
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UniqueFDIONS fdio_ns,
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fidl::InterfaceRequest<fuchsia::io::Directory> directory_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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#if !defined(DART_PRODUCT)
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void WriteProfileToTrace() const;
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#endif // !defined(DART_PRODUCT)
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private:
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Delegate& delegate_;
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const std::string thread_label_;
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flutter::Settings settings_;
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std::array<std::unique_ptr<Thread>, 3> threads_;
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std::unique_ptr<IsolateConfigurator> isolate_configurator_;
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std::unique_ptr<flutter::Shell> shell_;
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zx::event vsync_event_;
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fml::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(const fuchsia::ui::gfx::Metrics& metrics);
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void OnSessionSizeChangeHint(float width_change_factor,
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float height_change_factor);
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void OnDebugWireframeSettingsChanged(bool enabled);
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FML_DISALLOW_COPY_AND_ASSIGN(Engine);
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};
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} // namespace flutter_runner
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#endif // FLUTTER_SHELL_PLATFORM_FUCHSIA_ENGINE_H_
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