Files
engine/shell/platform/fuchsia/flutter/engine.h
T
Filip Filmar 400e3b00fb Wires the locale provided by Fuchsia. (#13045)
The FIDL service `fuchsia.intl.PropertyProvider` is a service that
the flutter runner can use to obtain information on system preferred
locales.

This change sends a platform message "setLocale" on the channel
"flutter/localization", based on the values provided by the above
mentioned FIDL service.

Credit: most of this was initially written by @kpozin; I ported it
to out-of-tree flutter engine.

Tested:

1. Compile and publish the unit tests package as shown in
   the script below.
2. In a Fuchsia repository (pointed to by `$FUCHSIA_DIR`), run
   `fx serve`
3. `fx shell run fuchsia-pkg://fuchsia.com/flutter_runner_tests#meta/flutter_runner_tests.cmx`

The script used to update the unit tests.

```bash

set -x

FLUTTER_ENGINE_DIR="${FLUTTER_ENGINE_DIR:-$HOME/fx/flutter/engine/src}"
readonly OUT_DIR="${FLUTTER_ENGINE_DIR}/out"

(
  cd ${FLUTTER_ENGINE_DIR}
  ./flutter/tools/gn --fuchsia --fuchsia-cpu x64 --unoptimized
  ninja -j 100 -C "${OUT_DIR}/fuchsia_debug_unopt_x64"
  cp "${OUT_DIR}/compile_commands.json" "${FLUTTER_ENGINE_DIR}"

  echo "Publishing the tests package"
  "${FLUTTER_ENGINE_DIR}/fuchsia/sdk/linux/tools/pm" publish \
    -a -r $FUCHSIA_DIR/out/release/amber-files \
    -f "${FLUTTER_ENGINE_DIR}/out/fuchsia_debug_unopt_x64/flutter_runner_tests-0.far"
)
```
2019-10-23 15:05:19 -07:00

83 lines
2.6 KiB
C++

// 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,
fuchsia::ui::views::ViewRefControl view_ref_control,
fuchsia::ui::views::ViewRef view_ref,
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_