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screenbrightnessplugin: Fix behaviour if dbus service is not initialized

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If the dbus service gets initialized later, ensure that the latest values are being fetched.
This commit is contained in:
Devin Lin 2024-11-10 21:57:17 -08:00
parent b9d4ff6455
commit abfe419b3b
4 changed files with 30 additions and 28 deletions
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1
components/mobileshell/qml/actiondrawer/quicksettings/BrightnessItem.qml
View file

@ -17,6 +17,7 @@ import org.kde.plasma.private.mobileshell.screenbrightnessplugin as ScreenBright
Item {
id: root
implicitHeight: brightnessRow.implicitHeight
visible: screenBrightness.brightnessAvailable
ScreenBrightness.ScreenBrightnessUtil {
id: screenBrightness

1
components/screenbrightnessplugin/CMakeLists.txt
View file

@ -20,6 +20,7 @@ target_link_libraries(screenbrightnessplugin PRIVATE
KF6::ConfigGui
KF6::I18n
KF6::Screen
QCoro::DBus
)
ecm_finalize_qml_module(screenbrightnessplugin)

52
components/screenbrightnessplugin/screenbrightnessutil.cpp
View file

@ -15,9 +15,6 @@ ScreenBrightnessUtil::ScreenBrightnessUtil(QObject *parent)
QDBusConnection::sessionBus(),
this);
fetchBrightness();
fetchMaxBrightness();
connect(m_brightnessInterface,
&org::kde::Solid::PowerManagement::Actions::BrightnessControl::brightnessChanged,
this,
@ -27,6 +24,9 @@ ScreenBrightnessUtil::ScreenBrightnessUtil(QObject *parent)
this,
&ScreenBrightnessUtil::fetchMaxBrightness);
fetchBrightness();
fetchMaxBrightness();
// watch for brightness interface
m_brightnessInterfaceWatcher = new QDBusServiceWatcher(QStringLiteral("org.kde.Solid.PowerManagement.Actions.BrightnessControl"),
QDBusConnection::sessionBus(),
@ -34,6 +34,8 @@ ScreenBrightnessUtil::ScreenBrightnessUtil(QObject *parent)
this);
connect(m_brightnessInterfaceWatcher, &QDBusServiceWatcher::serviceRegistered, this, [this]() -> void {
fetchBrightness();
fetchMaxBrightness();
Q_EMIT brightnessAvailableChanged();
});
@ -64,34 +66,32 @@ bool ScreenBrightnessUtil::brightnessAvailable() const
void ScreenBrightnessUtil::fetchBrightness()
{
QDBusPendingReply<int> reply = m_brightnessInterface->brightness();
QDBusPendingCallWatcher *watcher = new QDBusPendingCallWatcher(reply, this);
QDBusPendingReply<int> pendingReply = m_brightnessInterface->brightness();
const auto reply = co_await pendingReply;
connect(watcher, &QDBusPendingCallWatcher::finished, this, [this](QDBusPendingCallWatcher *watcher) {
QDBusPendingReply<int> reply = *watcher;
if (reply.isError()) {
qWarning() << "Getting brightness failed:" << reply.error().name() << reply.error().message();
} else if (m_brightness != reply.value()) {
m_brightness = reply.value();
Q_EMIT brightnessChanged();
}
watcher->deleteLater();
});
if (reply.isError()) {
qWarning() << "Getting brightness failed:" << reply.error().name() << reply.error().message();
return;
}
if (m_brightness != reply.value()) {
m_brightness = reply.value();
Q_EMIT brightnessChanged();
}
}
void ScreenBrightnessUtil::fetchMaxBrightness()
{
QDBusPendingReply<int> reply = m_brightnessInterface->brightnessMax();
QDBusPendingCallWatcher *watcher = new QDBusPendingCallWatcher(reply, this);
const auto reply = co_await pendingReply;
connect(watcher, &QDBusPendingCallWatcher::finished, this, [this](QDBusPendingCallWatcher *watcher) {
QDBusPendingReply<int> reply = *watcher;
if (reply.isError()) {
qWarning() << "Getting max brightness failed:" << reply.error().name() << reply.error().message();
} else if (m_maxBrightness != reply.value()) {
m_maxBrightness = reply.value();
Q_EMIT maxBrightnessChanged();
}
watcher->deleteLater();
});
if (reply.isError()) {
qWarning() << "Getting max brightness failed:" << reply.error().name() << reply.error().message();
return;
}
if (m_maxBrightness != reply.value()) {
m_maxBrightness = reply.value();
Q_EMIT maxBrightnessChanged();
}
}

4
components/screenbrightnessplugin/screenbrightnessutil.h
View file

@ -42,8 +42,8 @@ private Q_SLOTS:
void fetchMaxBrightness();
private:
int m_brightness;
int m_maxBrightness;
int m_brightness{0};
int m_maxBrightness{0};
org::kde::Solid::PowerManagement::Actions::BrightnessControl *m_brightnessInterface;
QDBusServiceWatcher *m_brightnessInterfaceWatcher;