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#include "cru/platform/gui/win/UiApplication.h"
#include "cru/platform/graphics/direct2d/Factory.h"
#include "cru/platform/gui/win/Base.h"
#include "cru/platform/gui/win/Clipboard.h"
#include "cru/platform/gui/win/Cursor.h"
#include "cru/platform/gui/win/Window.h"
#include <algorithm>
#include <chrono>
namespace cru::platform::gui::win {
namespace {
LRESULT __stdcall GeneralWndProc(HWND hWnd, UINT Msg, WPARAM wParam,
LPARAM lParam) {
auto window = WinUiApplication::GetInstance()->FromHWND(hWnd);
LRESULT result;
if (window != nullptr &&
window->HandleNativeWindowMessage(hWnd, Msg, wParam, lParam, &result))
return result;
return DefWindowProc(hWnd, Msg, wParam, lParam);
}
} // namespace
WinUiApplication* WinUiApplication::instance = nullptr;
WinUiApplication::WinUiApplication() {
instance = this;
instance_handle_ = ::GetModuleHandleW(nullptr);
if (!instance_handle_)
throw Win32Error("Failed to get module(instance) handle.");
::SetThreadDpiAwarenessContext(DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE);
general_window_class_ = std::make_unique<WindowClass>(
L"CruUIWindowClass", GeneralWndProc, instance_handle_);
graph_factory_ = std::make_unique<
cru::platform::graphics::direct2d::DirectGraphicsFactory>();
cursor_manager_ = std::make_unique<WinCursorManager>();
clipboard_ = std::make_unique<WinClipboard>(this);
}
WinUiApplication::~WinUiApplication() { instance = nullptr; }
int WinUiApplication::Run() {
MSG msg;
bool exit = false;
while (!exit) {
if (auto result = timers_.Update(std::chrono::steady_clock::now())) {
result->data();
continue;
}
auto timeout = timers_.NextTimeout(std::chrono::steady_clock::now());
::MsgWaitForMultipleObjects(
0, nullptr, FALSE, timeout ? timeout->count() : INFINITE, QS_ALLINPUT);
while (PeekMessageW(&msg, nullptr, 0, 0, PM_REMOVE)) {
TranslateMessage(&msg);
DispatchMessageW(&msg);
if (msg.message == WM_QUIT) {
exit = true;
break;
}
}
delete_later_pool_.Clean();
}
for (const auto& handler : quit_handlers_) handler();
return static_cast<int>(msg.wParam);
}
void WinUiApplication::RequestQuit(const int quit_code) {
::PostQuitMessage(quit_code);
}
void WinUiApplication::AddOnQuitHandler(std::function<void()> handler) {
quit_handlers_.push_back(std::move(handler));
}
long long WinUiApplication::SetImmediate(std::function<void()> action) {
return timers_.Add(std::move(action), std::chrono::milliseconds::zero(),
false);
}
long long WinUiApplication::SetTimeout(std::chrono::milliseconds milliseconds,
std::function<void()> action) {
return timers_.Add(std::move(action), milliseconds, false);
}
long long WinUiApplication::SetInterval(std::chrono::milliseconds milliseconds,
std::function<void()> action) {
return timers_.Add(std::move(action), milliseconds, true);
}
void WinUiApplication::CancelTimer(long long id) { timers_.Remove(id); }
void WinUiApplication::DeleteLater(Object* object) {
delete_later_pool_.Add(object);
}
std::vector<INativeWindow*> WinUiApplication::GetAllWindow() {
std::vector<INativeWindow*> result;
for (const auto w : windows_) {
result.push_back(static_cast<INativeWindow*>(w));
}
return result;
}
INativeWindow* WinUiApplication::CreateWindow() {
return new WinNativeWindow(this);
}
cru::platform::graphics::IGraphicsFactory*
WinUiApplication::GetGraphicsFactory() {
return graph_factory_.get();
}
ICursorManager* WinUiApplication::GetCursorManager() {
return cursor_manager_.get();
}
IClipboard* WinUiApplication::GetClipboard() { return clipboard_.get(); }
std::vector<WinNativeWindow*> WinUiApplication::GetAllWinWindow() {
return windows_;
}
WinNativeWindow* WinUiApplication::FromHWND(HWND hwnd) {
for (auto window : windows_) {
if (window->GetWindowHandle() == hwnd) {
return window;
}
}
return nullptr;
}
WindowClass* WinUiApplication::GetGeneralWindowClass() {
return general_window_class_.get();
}
void WinUiApplication::RegisterWindow(WinNativeWindow* window) {
windows_.push_back(window);
}
void WinUiApplication::UnregisterWindow(WinNativeWindow* window) {
windows_.erase(std::ranges::find(windows_, window));
}
} // namespace cru::platform::gui::win
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