key_event_handler.h

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// Copyright 2013 The Flutter 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 FLUTTER_SHELL_PLATFORM_GLFW_KEY_EVENT_HANDLER_H_
#define FLUTTER_SHELL_PLATFORM_GLFW_KEY_EVENT_HANDLER_H_
 
#include <memory>
 
#include "flutter/shell/platform/common/client_wrapper/include/flutter/basic_message_channel.h"
#include "flutter/shell/platform/common/client_wrapper/include/flutter/binary_messenger.h"
#include "flutter/shell/platform/glfw/keyboard_hook_handler.h"
#include "flutter/shell/platform/glfw/public/flutter_glfw.h"
#include "rapidjson/document.h"
 
namespace flutter {
 
// Implements a KeyboardHookHandler
//
// Handles key events and forwards them to the Flutter engine.
class KeyEventHandler : public KeyboardHookHandler {
 public:
  explicit KeyEventHandler(flutter::BinaryMessenger* messenger);
 
  virtual ~KeyEventHandler();
 
  // |KeyboardHookHandler|
  void KeyboardHook(GLFWwindow* window,
                    int key,
                    int scancode,
                    int action,
                    int mods) override;
 
  // |KeyboardHookHandler|
  void CharHook(GLFWwindow* window, unsigned int code_point) override;
 
 private:
  // The Flutter system channel for key event messages.
  std::unique_ptr<flutter::BasicMessageChannel<rapidjson::Document>> channel_;
};
 
}  // namespace flutter
 
#endif  // FLUTTER_SHELL_PLATFORM_GLFW_KEY_EVENT_HANDLER_H_