halkyon/apps/todo/halkyon_todo_flutter/windows/runner/flutter_window.h
Tizian 「ティツィアーン」 b9bf9813c5
feat(app): secrets kept out of screenshots on macOS and Windows too
The reading of the full reading's fixes noted that macOS and Windows can
keep a window out of screen captures, which SecretScreen didn't ask.

PlatformScreenGuard now asks the app's window on Android, macOS and
Windows (asksOn), and both apps' runners answer app.halkyon/screen_guard,
counting what shows: macOS's MainFlutterWindow sets sharingType = .none,
Windows' FlutterWindow WDA_EXCLUDEFROMCAPTURE (Windows 10 2004 on;
before, WDA_MONITOR, black in captures). Neither runner was built here
(Linux): to be tried on each system.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>
2026-10-23 14:13:01 +02:00

46 lines
1.4 KiB
C++

#ifndef RUNNER_FLUTTER_WINDOW_H_
#define RUNNER_FLUTTER_WINDOW_H_
#include <flutter/dart_project.h>
#include <flutter/encodable_value.h>
#include <flutter/flutter_view_controller.h>
#include <flutter/method_channel.h>
#include <memory>
#include "win32_window.h"
// A window that does nothing but host a Flutter view.
class FlutterWindow : public Win32Window {
public:
// Creates a new FlutterWindow hosting a Flutter view running |project|.
explicit FlutterWindow(const flutter::DartProject& project);
virtual ~FlutterWindow();
protected:
// Win32Window:
bool OnCreate() override;
void OnDestroy() override;
LRESULT MessageHandler(HWND window, UINT const message, WPARAM const wparam,
LPARAM const lparam) noexcept override;
private:
// The project to run.
flutter::DartProject project_;
// The Flutter instance hosted by this window.
std::unique_ptr<flutter::FlutterViewController> flutter_controller_;
// The channel halkyon_app's SecretScreen asks to keep the window out of
// screen captures while something secret shows (the recovery phrase,
// recovery codes, an authenticator's key), and how many show: counted, as
// several may at once.
std::unique_ptr<flutter::MethodChannel<flutter::EncodableValue>>
screen_guard_;
int secrets_shown_ = 0;
// Answers |screen_guard_|.
void GuardScreen();
};
#endif // RUNNER_FLUTTER_WINDOW_H_