| // 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 <stdint.h> |
| |
| #include <set> |
| |
| #include "base/compiler_specific.h" |
| #include "base/macros.h" |
| #include "remoting/protocol/input_stub.h" |
| #include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h" |
| #include "ui/events/keycodes/dom/dom_code.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: |
| InputEventTracker(); |
| explicit InputEventTracker(InputStub* input_stub); |
| ~InputEventTracker() override; |
| |
| void set_input_stub(InputStub* input_stub) { |
| input_stub_ = input_stub; |
| } |
| |
| // Returns true if the key with the specified USB code is currently pressed. |
| bool IsKeyPressed(ui::DomCode usb_keycode) const; |
| |
| // Returns the count of keys currently pressed. |
| int PressedKeyCount() const; |
| |
| // Dispatch release events for all currently-pressed keys, mouse buttons, and |
| // touch points to the InputStub. |
| void ReleaseAll(); |
| |
| // Similar to ReleaseAll, but conditional on a modifier key tracked by this |
| // class being pressed without the corresponding parameter indicating that it |
| // should be. |
| void ReleaseAllIfModifiersStuck(bool alt_expected, bool ctrl_expected, |
| bool os_expected, bool shift_expected); |
| |
| // InputStub interface. |
| void InjectKeyEvent(const KeyEvent& event) override; |
| void InjectTextEvent(const TextEvent& event) override; |
| void InjectMouseEvent(const MouseEvent& event) override; |
| void InjectTouchEvent(const TouchEvent& event) override; |
| |
| private: |
| InputStub* input_stub_ = nullptr; |
| |
| std::set<ui::DomCode> pressed_keys_; |
| |
| webrtc::DesktopVector mouse_pos_; |
| uint32_t mouse_button_state_ = 0; |
| |
| std::set<uint32_t> touch_point_ids_; |
| |
| DISALLOW_COPY_AND_ASSIGN(InputEventTracker); |
| }; |
| |
| } // namespace protocol |
| } // namespace remoting |
| |
| #endif // REMOTING_PROTOCOL_INPUT_EVENT_TRACKER_H_ |