blob: 32a990e3082aaa09f1e819234a33a2b2c072a2a5 [file] [log] [blame]
// Copyright 2018 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 <lib/async-loop/cpp/loop.h>
#include <lib/async-loop/default.h>
#include <lib/sys/cpp/component_context.h>
#include <memory>
#include "src/lib/ui/base_view/view_provider_service.h"
namespace scenic {
// Provides a skeleton for an entire component that only offers a |ViewProvider|
// and |View| service. This is only intended to be used for simple example
// programs.
// TODO: Rename this to |ViewComponent| and delete |ViewProviderService|
// once all |ViewProvider| implementations have been migrated to |View|.
class ViewProviderComponent {
// Constructor for use with Views v2.
ViewProviderComponent(ViewFactory factory, async::Loop* loop,
sys::ComponentContext* component_context = nullptr);
ViewProviderComponent(const ViewProviderComponent&) = delete;
ViewProviderComponent& operator=(const ViewProviderComponent&) = delete;
~ViewProviderComponent() = default;
// Implementation of the |fuchsia::ui::views::View| interface that allows it
// to be used with |ViewProviderComponent|.
// Constructs and owns a |BaseView|.
class ViewImpl final : public fuchsia::ui::views::View {
// Basic constructor.
// Args:
// factory: Given a |ViewContext|, constructs a |BaseView|. Will only be
// called once.
// scenic: Instance of Scenic to which the |BaseView| will be attached.
// startup_context: Component environment.
ViewImpl(ViewFactory factory, fidl::InterfaceRequest<View> view_request,
fuchsia::ui::scenic::Scenic* scenic, sys::ComponentContext* component_context);
~ViewImpl() override = default;
// |fuchsia::ui::views::View|
void Present(fuchsia::ui::views::ViewToken view_token) override;
// Sets the given closure as an error handler for all error types.
void SetErrorHandler(fit::closure error_handler);
// Performs cleanup after errors and calls the error handler, if present.
void OnError(zx_status_t epitaph_value = ZX_ERR_BAD_STATE);
ViewFactory factory_;
fuchsia::ui::scenic::Scenic* scenic_;
sys::ComponentContext* component_context_;
// |BaseView|, not to be confused with |fuchsia::ui::views::View| or
// |scenic::View|.
std::unique_ptr<BaseView> view_;
fidl::Binding<View> binding_;
fit::closure error_handler_;
std::unique_ptr<sys::ComponentContext> component_context_;
fidl::InterfacePtr<fuchsia::ui::scenic::Scenic> scenic_;
ViewProviderService service_;
std::unique_ptr<ViewImpl> view_impl_;
} // namespace scenic