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#include "check-visible.hpp"
#if defined _WIN32
#include "timer.hpp"
#include <QMutexLocker>
#include <windows.h>
constexpr int visible_timeout = 5000;
constexpr int invisible_timeout = 250;
static Timer timer;
static QMutex mtx;
static bool visible = true;
never_inline OTR_COMPAT_EXPORT
void set_is_visible(const QWidget& w, bool force)
{
QMutexLocker l(&mtx);
if (!force && timer.elapsed_ms() < (visible ? visible_timeout : invisible_timeout))
return;
timer.start();
const HWND id = (HWND) w.winId();
const QPoint pt = w.mapToGlobal({ 0, 0 });
const int W = w.width(), H = w.height();
const QPoint points[] =
{
pt,
pt + QPoint(W - 1, 0),
pt + QPoint(0, H - 1),
pt + QPoint(W - 1, H - 1),
pt + QPoint(W / 2, H / 2),
};
for (const QPoint& pt : points)
{
visible = WindowFromPoint({ pt.x(), pt.y() }) == id;
if (visible)
break;
}
}
never_inline OTR_COMPAT_EXPORT
bool check_is_visible()
{
QMutexLocker l(&mtx);
return visible;
}
#else
never_inline OTR_COMPAT_EXPORT
void set_is_visible(const QWidget&, bool)
{
}
never_inline OTR_COMPAT_EXPORT
bool check_is_visible()
{
return true;
}
#endif
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