| // Copyright 2015 The Cobalt Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef COBALT_SYSTEM_WINDOW_SYSTEM_WINDOW_H_ |
| #define COBALT_SYSTEM_WINDOW_SYSTEM_WINDOW_H_ |
| |
| #include "base/optional.h" |
| #include "cobalt/base/event_dispatcher.h" |
| #include "cobalt/math/size.h" |
| #include "cobalt/system_window/input_event.h" |
| #include "starboard/input.h" |
| #include "starboard/key.h" |
| |
| namespace cobalt { |
| namespace system_window { |
| |
| // A SystemWindow represents a window on desktop systems as well as as a |
| // mechanism for routing system events and notifications. The SystemWindow |
| // routes callbacks for user input, and provides the information necessary to |
| // create a display render target for a graphics system. |
| class SystemWindow { |
| public: |
| SystemWindow(base::EventDispatcher* event_dispatcher, |
| const base::Optional<math::Size>& window_size); |
| ~SystemWindow(); |
| |
| // Returns the dimensions of the window. |
| math::Size GetWindowSize() const; |
| |
| // Gets the size of the diagonal length between opposing corners of the |
| // screen. This is queried from the window_. |
| float GetDiagonalSizeInches() const; |
| |
| // device pixel ratio = resolution of video output / resolution of window. Its |
| // value is usually 1.0. Set it to a value greater than 1.0 allows the video |
| // to be played in higher resolution than the window. |
| float GetDevicePixelRatio() const; |
| |
| // Returns the resolution of the video output size, which may be different |
| // from the window size. This will generally be GetWindowSize() multiplied by |
| // GetDevicePixelRatio(). |
| math::Size GetVideoOutputResolution() const; |
| |
| base::EventDispatcher* event_dispatcher() const { return event_dispatcher_; } |
| |
| // Returns a handle to the Starboard window object. |
| SbWindow GetSbWindow(); |
| |
| // Gets the platform-specific window handle as a void*. |
| void* GetWindowHandle(); |
| |
| // Handles a single Starboard input event, dispatching any appropriate events. |
| void HandleInputEvent(const SbEvent* event); |
| |
| // Returns the primary SystemWindow currently in use by the application. |
| // Only one SystemWindow is currently supported, and this method will return |
| // that window, or |nullptr| if it does not exist. |
| static SystemWindow* PrimaryWindow(); |
| |
| private: |
| void UpdateModifiers(SbKey key, bool pressed); |
| InputEvent::Modifiers GetModifiers(); |
| |
| void DispatchInputEvent(const SbEvent* event, |
| InputEvent::Type type, bool is_repeat); |
| |
| void HandlePointerInputEvent(const SbEvent* event); |
| |
| base::EventDispatcher* event_dispatcher_; |
| |
| SbWindow window_; |
| |
| bool key_down_; |
| }; |
| |
| } // namespace system_window |
| } // namespace cobalt |
| |
| #endif // COBALT_SYSTEM_WINDOW_SYSTEM_WINDOW_H_ |