lib_ui/ui/platform/linux/ui_window_title_linux.cpp
2026-07-03 06:59:14 +04:00

136 lines
3.4 KiB
C++

// This file is part of Desktop App Toolkit,
// a set of libraries for developing nice desktop applications.
//
// For license and copyright information please follow this link:
// https://github.com/desktop-app/legal/blob/master/LEGAL
//
#include "ui/platform/linux/ui_window_title_linux.h"
#include "base/platform/linux/base_linux_xdp_utilities.h"
#include "base/platform/linux/base_linux_xsettings.h"
#include "base/integration.h"
namespace Ui {
namespace Platform {
namespace {
class TitleControlsLayoutImpl : public TitleControlsLayout {
public:
TitleControlsLayoutImpl();
private:
[[nodiscard]] static TitleControls::Layout Get();
const rpl::lifetime _lifetime;
const base::Platform::XDP::SettingWatcher _settingWatcher;
};
TitleControlsLayoutImpl::TitleControlsLayoutImpl()
: TitleControlsLayout(Get())
, _lifetime([&] {
using base::Platform::XCB::XSettings;
if (const auto xSettings = XSettings::Instance()) {
return xSettings->registerCallbackForProperty(
"Gtk/DecorationLayout",
[=](xcb_connection_t *, const QByteArray &, const QVariant &) {
base::Integration::Instance().enterFromEventLoop([&] {
_variable = Get();
});
});
}
return rpl::lifetime();
}())
, _settingWatcher("org.gnome.desktop.wm.preferences", "button-layout", [=] {
base::Integration::Instance().enterFromEventLoop([&] {
_variable = Get();
});
}) {}
TitleControls::Layout TitleControlsLayoutImpl::Get() {
const auto convert = [](const QString &keywords) {
const auto toControl = [](const QString &keyword) {
if (keyword == qstr("minimize")) {
return TitleControls::Control::Minimize;
} else if (keyword == qstr("maximize")) {
return TitleControls::Control::Maximize;
} else if (keyword == qstr("close")) {
return TitleControls::Control::Close;
}
return TitleControls::Control::Unknown;
};
TitleControls::Layout result;
const auto splitted = keywords.split(':');
ranges::transform(
splitted[0].split(','),
ranges::back_inserter(result.left),
toControl);
if (splitted.size() > 1) {
ranges::transform(
splitted[1].split(','),
ranges::back_inserter(result.right),
toControl);
}
return result;
};
const auto xSettingsResult = [&]()
-> std::optional<TitleControls::Layout> {
using base::Platform::XCB::XSettings;
const auto xSettings = XSettings::Instance();
if (!xSettings) {
return std::nullopt;
}
const auto decorationLayout = xSettings->setting(
"Gtk/DecorationLayout");
if (!decorationLayout.isValid()) {
return std::nullopt;
}
return convert(decorationLayout.toString());
}();
if (xSettingsResult.has_value()) {
return *xSettingsResult;
}
const auto portalResult = [&]() -> std::optional<TitleControls::Layout> {
auto decorationLayout = base::Platform::XDP::ReadSetting(
"org.gnome.desktop.wm.preferences",
"button-layout");
if (!decorationLayout.has_value()) {
return std::nullopt;
}
return convert(
QString::fromStdString(decorationLayout->get_string(nullptr)));
}();
if (portalResult.has_value()) {
return *portalResult;
}
return TitleControls::Layout{
.right = {
TitleControls::Control::Minimize,
TitleControls::Control::Maximize,
TitleControls::Control::Close,
}
};
}
} // namespace
std::shared_ptr<TitleControlsLayout> TitleControlsLayout::Create() {
return std::make_shared<TitleControlsLayoutImpl>();
}
} // namespace Platform
} // namespace Ui