// 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 #include #include "base/compiler_specific.h" #include "base/memory/raw_ptr.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(const InputEventTracker&) = delete; InputEventTracker& operator=(const InputEventTracker&) = delete; ~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: raw_ptr input_stub_ = nullptr; std::set pressed_keys_; webrtc::DesktopVector mouse_pos_; uint32_t mouse_button_state_ = 0; std::set touch_point_ids_; }; } // namespace protocol } // namespace remoting #endif // REMOTING_PROTOCOL_INPUT_EVENT_TRACKER_H_