flutter::KeyEventHandler Class Reference

#include <key_event_handler.h>

Inheritance diagram for flutter::KeyEventHandler:

Public Member Functions
	KeyEventHandler (flutter::BinaryMessenger *messenger)
virtual	~KeyEventHandler ()
void	KeyboardHook (GLFWwindow *window, int key, int scancode, int action, int mods) override
void	CharHook (GLFWwindow *window, unsigned int code_point) override
Public Member Functions inherited from flutter::KeyboardHookHandler
virtual	~KeyboardHookHandler ()=default

Detailed Description

Definition at line 21 of file key_event_handler.h.

Constructor & Destructor Documentation

KeyEventHandler()

flutter::KeyEventHandler::KeyEventHandler ( flutter::BinaryMessenger *  messenger )

explicit

Definition at line 104 of file key_event_handler.cc.

    : channel_(
          std::make_unique<flutter::BasicMessageChannel<rapidjson::Document>>(
              messenger,
              kChannelName,
              &flutter::JsonMessageCodec::GetInstance())) {}

~KeyEventHandler()

flutter::KeyEventHandler::~KeyEventHandler ( )

virtualdefault

Member Function Documentation

CharHook()

void flutter::KeyEventHandler::CharHook ( GLFWwindow *  window, unsigned int  code_point  )

overridevirtual

Implements flutter::KeyboardHookHandler.

Definition at line 113 of file key_event_handler.cc.

{}

KeyboardHook()

void flutter::KeyEventHandler::KeyboardHook ( GLFWwindow *  window, int  key, int  scancode, int  action, int  mods  )

overridevirtual

Implements flutter::KeyboardHookHandler.

Definition at line 115 of file key_event_handler.cc.

                                             {
  // TODO(chrome-bot): Translate to a cross-platform key code system rather than
  // passing the native key code.
  // NOLINTNEXTLINE(clang-analyzer-core.NullDereference)
  rapidjson::Document event(rapidjson::kObjectType);
  auto& allocator = event.GetAllocator();
  event.AddMember(kKeyCodeKey, key, allocator);
  event.AddMember(kKeyMapKey, kLinuxKeyMap, allocator);
  event.AddMember(kScanCodeKey, scancode, allocator);
  event.AddMember(kModifiersKey, mods, allocator);
  event.AddMember(kToolkitKey, kGLFWKey, allocator);
 
  uint32_t unicodeInt;
  bool result = GetUTF32CodePointFromGLFWKey(key, scancode, &unicodeInt);
  if (result) {
    event.AddMember(kUnicodeScalarValues, unicodeInt, allocator);
  }
 
  switch (action) {
    case GLFW_PRESS:
    case GLFW_REPEAT:
      event.AddMember(kTypeKey, kKeyDown, allocator);
      break;
    case GLFW_RELEASE:
      event.AddMember(kTypeKey, kKeyUp, allocator);
      break;
    default:
      std::cerr << "Unknown key event action: " << action << std::endl;
      return;
  }
  channel_->Send(event);
}

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The documentation for this class was generated from the following files:

• shell/platform/glfw/key_event_handler.h
• shell/platform/glfw/key_event_handler.cc