blob: cbe77333b42ba9610edafd7df6fc0d6520ea4cac [file] [log] [blame]
// Copyright 2019 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <fuchsia/ui/policy/cpp/fidl.h>
#include <lib/async-loop/cpp/loop.h>
#include <lib/async-loop/default.h>
#include <lib/sys/cpp/component_context.h>
#include <lib/trace-provider/provider.h>
#include <lib/ui/scenic/cpp/view_token_pair.h>
#include <zircon/status.h>
#include <zircon/types.h>
#include <cstring>
#include <memory>
#include "src/lib/fxl/command_line.h"
#include "src/lib/fxl/log_settings_command_line.h"
#include "src/lib/ui/base_view/view_provider_component.h"
#include "src/ui/examples/simplest_app/view.h"
using namespace simplest_app;
int main(int argc, const char** argv) {
constexpr char kProcessName[] = "simplest_app";
zx::process::self()->set_property(ZX_PROP_NAME, kProcessName, sizeof(kProcessName));
async::Loop loop(&kAsyncLoopConfigAttachToCurrentThread);
trace::TraceProviderWithFdio trace_provider(loop.dispatcher());
auto command_line = fxl::CommandLineFromArgcArgv(argc, argv);
if (!fxl::SetLogSettingsFromCommandLine(command_line)) {
return 1;
}
FX_LOGS(INFO) << "Using root presenter.";
FX_LOGS(INFO) << "To quit: Tap the background and hit the ESC key.";
// We need to attach ourselves to a Presenter. To do this, we create a
// pair of tokens, and use one to create a View locally (which we attach
// the rest of our UI to), and one which we pass to a Presenter to create
// a ViewHolder to embed us.
//
// In the Peridot layer of Fuchsia, the device_runner both launches the
// device shell, and connects it to the root presenter. Here, we create
// two eventpair handles, one of which will be passed to the root presenter
// and the other to the View.
auto [view_token, view_holder_token] = scenic::ViewTokenPair::New();
// Create a startup context for ourselves and use it to connect to
// environment services.
auto component_context = sys::ComponentContext::CreateAndServeOutgoingDirectory();
fuchsia::ui::scenic::ScenicPtr scenic =
component_context->svc()->Connect<fuchsia::ui::scenic::Scenic>();
scenic.set_error_handler([&loop](zx_status_t status) {
FX_LOGS(ERROR) << "Lost connection to Scenic with error " << zx_status_get_string(status)
<< ".";
loop.Quit();
});
// Create a |SimplestAppView| view.
scenic::ViewContext view_context = {
.session_and_listener_request =
scenic::CreateScenicSessionPtrAndListenerRequest(scenic.get()),
.view_token = std::move(view_token),
.component_context = component_context.get(),
};
auto view = std::make_unique<SimplestAppView>(std::move(view_context), &loop);
// Display the newly-created view using root_presenter.
fuchsia::ui::policy::PresenterPtr root_presenter =
component_context->svc()->Connect<fuchsia::ui::policy::Presenter>();
root_presenter->PresentView(std::move(view_holder_token), nullptr);
loop.Run();
}