| // 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. |
| |
| #ifndef GARNET_EXAMPLES_UI_LAB_DIRECT_INPUT_APP_H_ |
| #define GARNET_EXAMPLES_UI_LAB_DIRECT_INPUT_APP_H_ |
| |
| #include <fuchsia/ui/app/cpp/fidl.h> |
| #include <fuchsia/ui/input/cpp/fidl.h> |
| #include <fuchsia/ui/scenic/cpp/fidl.h> |
| #include <lib/async-loop/cpp/loop.h> |
| #include <lib/zx/eventpair.h> |
| |
| #include <array> |
| #include <memory> |
| |
| #include "garnet/bin/ui/input_reader/input_reader.h" |
| #include "lib/component/cpp/startup_context.h" |
| #include "lib/fidl/cpp/binding_set.h" |
| #include "lib/ui/input/device_state.h" |
| #include "lib/ui/input/input_device_impl.h" |
| #include "lib/ui/scenic/cpp/resources.h" |
| #include "lib/ui/scenic/cpp/session.h" |
| |
| namespace direct_input { |
| |
| // The direct_input application is a standalone application that exercises |
| // Scenic's input subsystem. To run it: |
| // $ run direct_input [--verbose=1] |
| // |
| // The README.md file describes its operation. |
| class App : public fuchsia::ui::input::InputDeviceRegistry, |
| public ui_input::InputDeviceImpl::Listener { |
| public: |
| App(async::Loop* loop); |
| ~App(); |
| |
| // |fuchsia::ui::input::InputDeviceRegistry| |
| void RegisterDevice(fuchsia::ui::input::DeviceDescriptor descriptor, |
| fidl::InterfaceRequest<fuchsia::ui::input::InputDevice> |
| input_device) override; |
| |
| // |ui_input::InputDeviceImpl::Listener| |
| void OnDeviceDisconnected(ui_input::InputDeviceImpl* input_device) override; |
| |
| // |ui_input::InputDeviceImpl::Listener| |
| void OnReport(ui_input::InputDeviceImpl* input_device, |
| fuchsia::ui::input::InputReport report) override; |
| |
| private: |
| const static std::size_t kMaxFingers = 10; |
| |
| // Not copyable or movable. |
| App(const App&) = delete; |
| App& operator=(const App&) = delete; |
| |
| void UpdateScene(uint64_t next_presentation_time); |
| void CreateScene(float display_width, float display_height); |
| void ReleaseSessionResources(); |
| |
| // Press ESC to quit. |
| void CheckQuit(const fuchsia::ui::input::InputEvent& event); |
| |
| // Callbacks |
| void OnScenicError(); |
| void OnSessionError(); |
| void OnSessionClose(); |
| // Deal with Events from Scenic. |
| void OnSessionEvents(std::vector<fuchsia::ui::scenic::Event> events); |
| // Display a focus frame around the View. |
| void OnFocusEvent(const fuchsia::ui::input::FocusEvent& event); |
| // Blink the focus frame. |
| void OnKeyboardEvent(const fuchsia::ui::input::KeyboardEvent& event); |
| // Display a finger tracker for each finger captured by this View. |
| void OnPointerEvent(const fuchsia::ui::input::PointerEvent& event); |
| // Deal with sensor reports received from Zircon. |
| void OnDeviceSensorEvent(uint32_t device_id, |
| fuchsia::ui::input::InputReport event); |
| // Route input events from Zircon to Scenic. |
| void OnDeviceInputEvent(uint32_t compositor_id, |
| fuchsia::ui::input::InputEvent event); |
| |
| // Application fields |
| std::unique_ptr<component::StartupContext> startup_context_; |
| async::Loop* const message_loop_; |
| |
| // Input fields |
| ui_input::InputReader input_reader_; |
| fidl::BindingSet<fuchsia::ui::input::InputDeviceRegistry> |
| input_device_registry_bindings_; |
| uint32_t next_device_token_; |
| std::unordered_map<uint32_t, std::unique_ptr<ui_input::InputDeviceImpl>> |
| device_by_id_; |
| std::unordered_map<uint32_t, std::unique_ptr<ui_input::DeviceState>> |
| device_state_by_id_; |
| |
| // DirectInput's Scene |
| fuchsia::ui::scenic::ScenicPtr scenic_; |
| std::unique_ptr<scenic::Session> session_; |
| std::unique_ptr<scenic::DisplayCompositor> compositor_; |
| std::unique_ptr<scenic::Camera> camera_; |
| std::unique_ptr<scenic::EntityNode> focus_frame_; |
| std::array<std::unique_ptr<scenic::ShapeNode>, kMaxFingers> pointer_tracker_; |
| std::array<uint32_t, kMaxFingers> pointer_id_; // Pointer id for each shape. |
| float width_in_px_; |
| float height_in_px_; |
| bool focused_; |
| |
| // DirectInput's View |
| std::unique_ptr<scenic::ViewHolder> view_holder_; |
| std::unique_ptr<scenic::View> view_; |
| |
| // Child component fields |
| fuchsia::sys::ComponentControllerPtr child_controller_; |
| fuchsia::ui::app::ViewProviderPtr child_view_provider_; |
| std::unique_ptr<scenic::ViewHolder> child_view_holder_; |
| }; |
| |
| } // namespace direct_input |
| |
| #endif // GARNET_EXAMPLES_UI_LAB_DIRECT_INPUT_APP_H_ |