| // Copyright (c) 2012 The Chromium 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 REMOTING_PROTOCOL_INPUT_EVENT_TRACKER_H_ |
| #define REMOTING_PROTOCOL_INPUT_EVENT_TRACKER_H_ |
| |
| #include <set> |
| |
| #include "base/basictypes.h" |
| #include "base/compiler_specific.h" |
| #include "remoting/protocol/input_stub.h" |
| #include "third_party/skia/include/core/SkPoint.h" |
| |
| namespace remoting { |
| namespace protocol { |
| |
| // Filtering InputStub which tracks mouse and keyboard input events before |
| // passing them on to |input_stub|, and can dispatch release events to |
| // |input_stub| for all currently-pressed keys and buttons when necessary. |
| class InputEventTracker : public InputStub { |
| public: |
| explicit InputEventTracker(protocol::InputStub* input_stub); |
| virtual ~InputEventTracker(); |
| |
| // Returns true if the key with the specified USB code is currently pressed. |
| bool IsKeyPressed(uint32 usb_keycode) const; |
| |
| // Returns the count of keys currently pressed. |
| int PressedKeyCount() const; |
| |
| // Dispatch release events for all currently-pressed keys and mouse buttons |
| // to the InputStub. |
| void ReleaseAll(); |
| |
| // InputStub interface. |
| virtual void InjectKeyEvent(const KeyEvent& event) OVERRIDE; |
| virtual void InjectMouseEvent(const MouseEvent& event) OVERRIDE; |
| |
| private: |
| protocol::InputStub* input_stub_; |
| |
| std::set<uint32> pressed_keys_; |
| |
| SkIPoint mouse_pos_; |
| uint32 mouse_button_state_; |
| |
| DISALLOW_COPY_AND_ASSIGN(InputEventTracker); |
| }; |
| |
| } // namespace protocol |
| } // namespace remoting |
| |
| #endif // REMOTING_PROTOCOL_INPUT_EVENT_TRACKER_H_ |