Clazy fix

[dolphin.git] / src / kitemviews / private / kitemlistsmoothscroller.cpp

diff --git a/src/kitemviews/private/kitemlistsmoothscroller.cpp b/src/kitemviews/private/kitemlistsmoothscroller.cpp
index 343399179b39d70d73489a1c31d83dc95bbc12a2..14a280e33f7005a05829711ad6489fa622eddc5f 100644 (file)
--- a/src/kitemviews/private/kitemlistsmoothscroller.cpp
+++ b/src/kitemviews/private/kitemlistsmoothscroller.cpp
@@ -6,26 +6,36 @@
 
 #include "kitemlistsmoothscroller.h"
 
+#include <KConfigGroup>
+#include <KSharedConfig>
+
 #include <QApplication>
+#include <QDBusConnection>
 #include <QPropertyAnimation>
 #include <QScrollBar>
 #include <QStyle>
 #include <QWheelEvent>
 
-KItemListSmoothScroller::KItemListSmoothScroller(QScrollBar* scrollBar,
-                                                 QObject* parent) :
-    QObject(parent),
-    m_scrollBarPressed(false),
-    m_smoothScrolling(true),
-    m_scrollBar(scrollBar),
-    m_animation(nullptr)
+KItemListSmoothScroller::KItemListSmoothScroller(QScrollBar *scrollBar, QObject *parent)
+    : QObject(parent)
+    , m_scrollBarPressed(false)
+    , m_smoothScrolling(true)
+    , m_scrollBar(scrollBar)
+    , m_animation(nullptr)
 {
     m_animation = new QPropertyAnimation(this);
-    const int animationDuration = m_scrollBar->style()->styleHint(QStyle::SH_Widget_Animation_Duration, nullptr, m_scrollBar);
-    const bool animationEnabled = (animationDuration > 0);
-    m_animation->setDuration(animationEnabled ? animationDuration : 1);
-    connect(m_animation, &QPropertyAnimation::stateChanged,
-            this, &KItemListSmoothScroller::slotAnimationStateChanged);
+
+    KSharedConfig::Ptr globalConfig = KSharedConfig::openConfig(QStringLiteral("kdeglobals"), KConfig::IncludeGlobals);
+    KConfigGroup configGroup(globalConfig, QStringLiteral("KDE"));
+    updateAnimationDuration(configGroup.readEntry("SmoothScroll", true));
+
+    QDBusConnection::sessionBus().connect(QString(),
+                                          QStringLiteral("/SmoothScroll"),
+                                          QStringLiteral("org.kde.SmoothScroll"),
+                                          QStringLiteral("notifyChange"),
+                                          this,
+                                          SLOT(updateAnimationDuration(bool)));
+    connect(m_animation, &QPropertyAnimation::stateChanged, this, &KItemListSmoothScroller::slotAnimationStateChanged);
 
     m_scrollBar->installEventFilter(this);
 }
@@ -39,23 +49,29 @@ void KItemListSmoothScroller::setScrollBar(QScrollBar *scrollBar)
     m_scrollBar = scrollBar;
 }
 
-QScrollBar* KItemListSmoothScroller::scrollBar() const
+QScrollBar *KItemListSmoothScroller::scrollBar() const
 {
     return m_scrollBar;
 }
 
-void KItemListSmoothScroller::setTargetObject(QObject* target)
+void KItemListSmoothScroller::setTargetObject(QObject *target)
 {
+    if (m_animation->state() == QAbstractAnimation::Running) {
+        m_animation->stop();
+    }
     m_animation->setTargetObject(target);
 }
 
-QObject* KItemListSmoothScroller::targetObject() const
+QObject *KItemListSmoothScroller::targetObject() const
 {
     return m_animation->targetObject();
 }
 
-void KItemListSmoothScroller::setPropertyName(const QByteArray& propertyName)
+void KItemListSmoothScroller::setPropertyName(const QByteArray &propertyName)
 {
+    if (m_animation->state() == QAbstractAnimation::Running) {
+        m_animation->stop();
+    }
     m_animation->setPropertyName(propertyName);
 }
 
@@ -66,7 +82,7 @@ QByteArray KItemListSmoothScroller::propertyName() const
 
 void KItemListSmoothScroller::scrollContentsBy(qreal distance)
 {
-    QObject* target = targetObject();
+    QObject *target = targetObject();
     if (!target) {
         return;
     }
@@ -143,7 +159,7 @@ bool KItemListSmoothScroller::requestScrollBarUpdate(int newMaximum)
     return true;
 }
 
-bool KItemListSmoothScroller::eventFilter(QObject* obj, QEvent* event)
+bool KItemListSmoothScroller::eventFilter(QObject *obj, QEvent *event)
 {
     Q_ASSERT(obj == m_scrollBar);
 
@@ -168,8 +184,7 @@ bool KItemListSmoothScroller::eventFilter(QObject* obj, QEvent* event)
     return QObject::eventFilter(obj, event);
 }
 
-void KItemListSmoothScroller::slotAnimationStateChanged(QAbstractAnimation::State newState,
-                                                        QAbstractAnimation::State oldState)
+void KItemListSmoothScroller::slotAnimationStateChanged(QAbstractAnimation::State newState, QAbstractAnimation::State oldState)
 {
     Q_UNUSED(oldState)
     if (newState == QAbstractAnimation::Stopped && m_smoothScrolling && !m_scrollBarPressed) {
@@ -180,22 +195,37 @@ void KItemListSmoothScroller::slotAnimationStateChanged(QAbstractAnimation::Stat
     }
 }
 
-void KItemListSmoothScroller::handleWheelEvent(QWheelEvent* event)
+void KItemListSmoothScroller::updateAnimationDuration(bool isSmoothScrollingEnabled)
+{
+    if (isSmoothScrollingEnabled) {
+        // Breeze sets SH_Widget_Animation_Duration from the KDE global animation speed setting
+        const int animationDuration = m_scrollBar->style()->styleHint(QStyle::SH_Widget_Animation_Duration, nullptr, m_scrollBar);
+        const bool animationEnabled = (animationDuration > 0);
+        m_animation->setDuration(animationEnabled ? animationDuration : 1);
+    } else {
+        m_animation->setDuration(1);
+    }
+}
+
+void KItemListSmoothScroller::handleWheelEvent(QWheelEvent *event)
 {
     const bool previous = m_smoothScrolling;
 
     m_smoothScrolling = true;
 
-#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
     QWheelEvent *copy = event->clone();
     QApplication::sendEvent(m_scrollBar, copy);
     event->setAccepted(copy->isAccepted());
-#else
-    QWheelEvent copy = *event;
-    QApplication::sendEvent(m_scrollBar, &copy);
-    event->setAccepted(copy.isAccepted());
-#endif
 
     m_smoothScrolling = previous;
 }
 
+bool KItemListSmoothScroller::isAnimating()
+{
+    if (m_animation) {
+        return (m_animation->state() == QAbstractAnimation::Running);
+    }
+    return false;
+}
+
+#include "moc_kitemlistsmoothscroller.cpp"