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// Copyright 2016 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_HOST_LINUX_X11_KEYBOARD_H_
#define REMOTING_HOST_LINUX_X11_KEYBOARD_H_
#include <stdint.h>
#include <vector>
#include "base/macros.h"
namespace remoting {
// An interface for accessing the keyboard and changing the keyboard layout.
// An implementation is allowed to delay processing a request until Flush() or
// Sync() is called.
class X11Keyboard {
public:
virtual ~X11Keyboard() {}
// Returns a vector of key codes that are not being mapped to a code point.
virtual std::vector<uint32_t> GetUnusedKeycodes() = 0;
// Simulates a key press with the given |keycode| and |modifiers|. Note that
// the application receiving the key press can decide whether or how the key
// press is interpreted into a character.
virtual void PressKey(uint32_t keycode, uint32_t modifiers) = 0;
// Finds a keycode and set of modifiers that generate character with the
// specified |code_point|. Returns true if the key code is successfully found.
// If the keycode is not found, |keycode| and |modifiers| will not be
// affected.
virtual bool FindKeycode(uint32_t code_point,
uint32_t* keycode,
uint32_t* modifiers) = 0;
// Change the key mapping such that pressing |keycode| will output the
// character of |code_point|.
virtual bool ChangeKeyMapping(uint32_t keycode, uint32_t code_point) = 0;
// Flushes all requests but don't wait for processing the requests.
virtual void Flush() = 0;
// Flushes all requests and wait until all requests are processed.
virtual void Sync() = 0;
protected:
X11Keyboard() {}
};
} // namespace remoting
#endif // REMOTING_HOST_LINUX_X11_KEYBOARD_H_
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