95 lines
2.8 KiB
C++
95 lines
2.8 KiB
C++
#include "flutter_window.h"
|
|
|
|
#include <optional>
|
|
#include <dwmapi.h>
|
|
#include <winreg.h>
|
|
|
|
#include "flutter/generated_plugin_registrant.h"
|
|
|
|
// Helper: Read AppsUseLightTheme from registry (0 = dark mode, 1 = light mode)
|
|
static BOOL IsDarkMode() {
|
|
HKEY hKey;
|
|
DWORD value = 1; // default: light
|
|
DWORD size = sizeof(value);
|
|
if (RegOpenKeyExW(HKEY_CURRENT_USER,
|
|
L"Software\\Microsoft\\Windows\\CurrentVersion\\Themes\\Personalize",
|
|
0, KEY_READ, &hKey) == ERROR_SUCCESS) {
|
|
RegQueryValueExW(hKey, L"AppsUseLightTheme", nullptr, nullptr,
|
|
reinterpret_cast<LPBYTE>(&value), &size);
|
|
RegCloseKey(hKey);
|
|
}
|
|
return (value == 0) ? TRUE : FALSE;
|
|
}
|
|
|
|
// Apply dark/light title bar based on current system setting
|
|
static void ApplyDarkTitleBar(HWND hwnd) {
|
|
BOOL dark = IsDarkMode();
|
|
DwmSetWindowAttribute(hwnd, DWMWA_USE_IMMERSIVE_DARK_MODE, &dark, sizeof(dark));
|
|
}
|
|
|
|
FlutterWindow::FlutterWindow(const flutter::DartProject& project)
|
|
: project_(project) {}
|
|
|
|
FlutterWindow::~FlutterWindow() {}
|
|
|
|
bool FlutterWindow::OnCreate() {
|
|
if (!Win32Window::OnCreate()) {
|
|
return false;
|
|
}
|
|
|
|
RECT frame = GetClientArea();
|
|
|
|
// The size here must match the window dimensions to avoid unnecessary surface
|
|
// creation / destruction in the startup path.
|
|
flutter_controller_ = std::make_unique<flutter::FlutterViewController>(
|
|
frame.right - frame.left, frame.bottom - frame.top, project_);
|
|
// Ensure that basic setup of the controller was successful.
|
|
if (!flutter_controller_->engine() || !flutter_controller_->view()) {
|
|
return false;
|
|
}
|
|
RegisterPlugins(flutter_controller_->engine());
|
|
SetChildContent(flutter_controller_->view()->GetNativeWindow());
|
|
|
|
// Apply dark/light title bar to match system theme
|
|
ApplyDarkTitleBar(GetHandle());
|
|
|
|
return true;
|
|
}
|
|
|
|
void FlutterWindow::OnDestroy() {
|
|
if (flutter_controller_) {
|
|
flutter_controller_ = nullptr;
|
|
}
|
|
|
|
Win32Window::OnDestroy();
|
|
}
|
|
|
|
LRESULT
|
|
FlutterWindow::MessageHandler(HWND hwnd, UINT const message,
|
|
WPARAM const wparam,
|
|
LPARAM const lparam) noexcept {
|
|
// Give Flutter, including plugins, an opportunity to handle window messages.
|
|
if (flutter_controller_) {
|
|
std::optional<LRESULT> result =
|
|
flutter_controller_->HandleTopLevelWindowProc(hwnd, message, wparam,
|
|
lparam);
|
|
if (result) {
|
|
return *result;
|
|
}
|
|
}
|
|
|
|
switch (message) {
|
|
case WM_FONTCHANGE:
|
|
flutter_controller_->engine()->ReloadSystemFonts();
|
|
break;
|
|
case WM_SETTINGCHANGE:
|
|
if (lparam &&
|
|
wcscmp(reinterpret_cast<LPCWSTR>(lparam), L"ImmersiveColorSet") == 0) {
|
|
ApplyDarkTitleBar(hwnd);
|
|
}
|
|
break;
|
|
}
|
|
|
|
return Win32Window::MessageHandler(hwnd, message, wparam, lparam);
|
|
}
|