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https://github.com/encounter/engine.git
synced 2026-03-30 11:09:55 -07:00
James Clarke
ff484d4f69
Start work on flutter/flutter#30726 by adding an alternative win32 shell platform implementation for Windows that is not based on GLFW and that uses LIBANGLE for rendering and native win32 windowing and input. This change does not replace the GLFW implementation but rather runs side by side with it producing a secondary flutter_windows_win32.dll artifact. The following items must be added to attain parity with the GLFW implementation: - Custom task scheduling - Support for keyboard modifier keys - Async texture uploads - Correct high DPI handling on Windows versions < 1703 and will be added in subsequent changes.
63 lines
2.0 KiB
C++
63 lines
2.0 KiB
C++
// Copyright 2013 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "flutter/shell/platform/windows/key_event_handler.h"
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#include <windows.h>
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#include <iostream>
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#include "flutter/shell/platform/common/cpp/client_wrapper/include/flutter/json_message_codec.h"
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static constexpr char kChannelName[] = "flutter/keyevent";
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static constexpr char kKeyCodeKey[] = "keyCode";
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static constexpr char kKeyMapKey[] = "keymap";
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static constexpr char kTypeKey[] = "type";
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static constexpr char kAndroidKeyMap[] = "android";
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static constexpr char kKeyUp[] = "keyup";
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static constexpr char kKeyDown[] = "keydown";
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namespace flutter {
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KeyEventHandler::KeyEventHandler(flutter::BinaryMessenger* messenger)
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: channel_(
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std::make_unique<flutter::BasicMessageChannel<rapidjson::Document>>(
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messenger,
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kChannelName,
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&flutter::JsonMessageCodec::GetInstance())) {}
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KeyEventHandler::~KeyEventHandler() = default;
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void KeyEventHandler::CharHook(Win32FlutterWindow* window,
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unsigned int code_point) {}
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void KeyEventHandler::KeyboardHook(Win32FlutterWindow* window,
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int key,
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int scancode,
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int action,
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int mods) {
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// TODO: Translate to a cross-platform key code system rather than passing
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// the native key code.
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rapidjson::Document event(rapidjson::kObjectType);
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auto& allocator = event.GetAllocator();
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event.AddMember(kKeyCodeKey, key, allocator);
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event.AddMember(kKeyMapKey, kAndroidKeyMap, allocator);
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switch (action) {
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case WM_KEYDOWN:
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event.AddMember(kTypeKey, kKeyDown, allocator);
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break;
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case WM_KEYUP:
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event.AddMember(kTypeKey, kKeyUp, allocator);
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break;
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default:
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std::cerr << "Unknown key event action: " << action << std::endl;
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return;
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}
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channel_->Send(event);
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}
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} // namespace flutter
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