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Code Issues Projects Releases Packages Wiki Activity Actions 9

UI/Qt: Set WC's max FPS to the refresh rate of the current screen

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This commit is contained in:
Luke Wilde 2025-07-25 16:43:27 +01:00 • committed by Alexander Kalenik
commit 124bdce99c
Notes: github-actions[bot] 2025-07-26 14:10:29 +00:00
5 changed files with 40 additions and 4 deletions
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18
UI/Qt/BrowserWindow.cpp
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@ -82,18 +82,26 @@ BrowserWindow::BrowserWindow(Vector<URL::URL> const& initial_urls, IsPopupWindow
// Listen for DPI changes
m_device_pixel_ratio = devicePixelRatio();
m_current_screen = screen();
m_refresh_rate = m_current_screen->refreshRate();
if (QT_VERSION < QT_VERSION_CHECK(6, 6, 0) || QGuiApplication::platformName() != "wayland") {
setAttribute(Qt::WA_NativeWindow);
setAttribute(Qt::WA_DontCreateNativeAncestors);
QObject::connect(m_current_screen, &QScreen::logicalDotsPerInchChanged, this, &BrowserWindow::device_pixel_ratio_changed);
QObject::connect(m_current_screen, &QScreen::refreshRateChanged, this, &BrowserWindow::refresh_rate_changed);
QObject::connect(windowHandle(), &QWindow::screenChanged, this, [this](QScreen* screen) {
if (m_device_pixel_ratio != devicePixelRatio())
device_pixel_ratio_changed(devicePixelRatio());
// Listen for logicalDotsPerInchChanged signals on new screen
if (m_refresh_rate != screen->refreshRate())
refresh_rate_changed(screen->refreshRate());
// Listen for logicalDotsPerInchChanged and refreshRateChanged signals on new screen
QObject::disconnect(m_current_screen, &QScreen::logicalDotsPerInchChanged, nullptr, nullptr);
QObject::disconnect(m_current_screen, &QScreen::refreshRateChanged, nullptr, nullptr);
m_current_screen = screen;
QObject::connect(m_current_screen, &QScreen::logicalDotsPerInchChanged, this, &BrowserWindow::device_pixel_ratio_changed);
QObject::connect(m_current_screen, &QScreen::refreshRateChanged, this, &BrowserWindow::refresh_rate_changed);
});
}
@ -893,6 +901,14 @@ void BrowserWindow::device_pixel_ratio_changed(qreal dpi)
});
}
void BrowserWindow::refresh_rate_changed(qreal refresh_rate)
{
m_refresh_rate = refresh_rate;
for_each_tab([this](auto& tab) {
tab.view().set_maximum_frames_per_second(m_refresh_rate);
});
}
void BrowserWindow::tab_title_changed(int index, QString const& title)
{
// NOTE: Qt uses ampersands for shortcut keys in tab titles, so we need to escape them.