1 // Copyright 2013 The Flutter Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef FLUTTER_SHELL_PLATFORM_GLFW_KEYBOARD_HOOK_HANDLER_H_ 6 #define FLUTTER_SHELL_PLATFORM_GLFW_KEYBOARD_HOOK_HANDLER_H_ 7 8 #include <GLFW/glfw3.h> 9 10 #include "flutter/shell/platform/glfw/public/flutter_glfw.h" 11 12 namespace flutter { 13 14 // Abstract class for handling keyboard input events. 15 class KeyboardHookHandler { 16 public: 17 virtual ~KeyboardHookHandler() = default; 18 19 // A function for hooking into keyboard input. 20 virtual void KeyboardHook(GLFWwindow* window, 21 int key, 22 int scancode, 23 int action, 24 int mods) = 0; 25 26 // A function for hooking into unicode code point input. 27 virtual void CharHook(GLFWwindow* window, unsigned int code_point) = 0; 28 }; 29 30 } // namespace flutter 31 32 #endif // FLUTTER_SHELL_PLATFORM_GLFW_KEYBOARD_HOOK_HANDLER_H_ 33