]> cloud.milkyroute.net Git - dolphin.git/blobdiff - src/kitemviews/kitemlistview.cpp
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[dolphin.git] / src / kitemviews / kitemlistview.cpp
index 38ce63af0adf839cbfee987fc33fcc1363fc9f01..4d9bf083f2f056ff4ffde35c6d86ad16d55d52e9 100644 (file)
@@ -1,52 +1,33 @@
-/***************************************************************************
- *   Copyright (C) 2011 by Peter Penz <peter.penz19@gmail.com>             *
- *                                                                         *
- *   Based on the Itemviews NG project from Trolltech Labs:                *
- *   http://qt.gitorious.org/qt-labs/itemviews-ng                          *
- *                                                                         *
- *   This program is free software; you can redistribute it and/or modify  *
- *   it under the terms of the GNU General Public License as published by  *
- *   the Free Software Foundation; either version 2 of the License, or     *
- *   (at your option) any later version.                                   *
- *                                                                         *
- *   This program is distributed in the hope that it will be useful,       *
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
- *   GNU General Public License for more details.                          *
- *                                                                         *
- *   You should have received a copy of the GNU General Public License     *
- *   along with this program; if not, write to the                         *
- *   Free Software Foundation, Inc.,                                       *
- *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
- ***************************************************************************/
+/*
+ * SPDX-FileCopyrightText: 2011 Peter Penz <peter.penz19@gmail.com>
+ *
+ * Based on the Itemviews NG project from Trolltech Labs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 
 #include "kitemlistview.h"
 
-#include <KDebug>
+#include "dolphindebug.h"
 #include "kitemlistcontainer.h"
 #include "kitemlistcontroller.h"
 #include "kitemlistheader.h"
 #include "kitemlistselectionmanager.h"
-#include "kitemlistwidget.h"
+#include "kitemlistviewaccessible.h"
+#include "kstandarditemlistwidget.h"
 
 #include "private/kitemlistheaderwidget.h"
 #include "private/kitemlistrubberband.h"
 #include "private/kitemlistsizehintresolver.h"
 #include "private/kitemlistviewlayouter.h"
-#include "private/kitemlistviewanimation.h"
 
-#include <QCursor>
+#include <QElapsedTimer>
 #include <QGraphicsSceneMouseEvent>
 #include <QGraphicsView>
-#include <QPainter>
 #include <QPropertyAnimation>
-#include <QStyle>
 #include <QStyleOptionRubberBand>
 #include <QTimer>
 
-#include <algorithm>
-
-#include "kitemlistviewaccessible.h"
 
 namespace {
     // Time in ms until reaching the autoscroll margin triggers
@@ -58,7 +39,7 @@ namespace {
 }
 
 #ifndef QT_NO_ACCESSIBILITY
-QAccessibleInterface* accessibleInterfaceFactory(const QString &key, QObject *object)
+QAccessibleInterface* accessibleInterfaceFactory(const QString& key, QObject* object)
 {
     Q_UNUSED(key)
 
@@ -68,7 +49,7 @@ QAccessibleInterface* accessibleInterfaceFactory(const QString &key, QObject *ob
         return new KItemListViewAccessible(view);
     }
 
-    return 0;
+    return nullptr;
 }
 #endif
 
@@ -81,50 +62,69 @@ KItemListView::KItemListView(QGraphicsWidget* parent) :
     m_activeTransactions(0),
     m_endTransactionAnimationHint(Animation),
     m_itemSize(),
-    m_controller(0),
-    m_model(0),
+    m_controller(nullptr),
+    m_model(nullptr),
     m_visibleRoles(),
-    m_widgetCreator(0),
-    m_groupHeaderCreator(0),
+    m_widgetCreator(nullptr),
+    m_groupHeaderCreator(nullptr),
     m_styleOption(),
     m_visibleItems(),
     m_visibleGroups(),
     m_visibleCells(),
-    m_sizeHintResolver(0),
-    m_layouter(0),
-    m_animation(0),
-    m_layoutTimer(0),
+    m_sizeHintResolver(nullptr),
+    m_layouter(nullptr),
+    m_animation(nullptr),
+    m_layoutTimer(nullptr),
     m_oldScrollOffset(0),
     m_oldMaximumScrollOffset(0),
     m_oldItemOffset(0),
     m_oldMaximumItemOffset(0),
     m_skipAutoScrollForRubberBand(false),
-    m_rubberBand(0),
+    m_rubberBand(nullptr),
+    m_tapAndHoldIndicator(nullptr),
     m_mousePos(),
     m_autoScrollIncrement(0),
-    m_autoScrollTimer(0),
-    m_header(0),
-    m_headerWidget(0),
+    m_autoScrollTimer(nullptr),
+    m_header(nullptr),
+    m_headerWidget(nullptr),
+    m_indicatorAnimation(nullptr),
     m_dropIndicator()
 {
     setAcceptHoverEvents(true);
+    setAcceptTouchEvents(true);
 
     m_sizeHintResolver = new KItemListSizeHintResolver(this);
 
-    m_layouter = new KItemListViewLayouter(this);
-    m_layouter->setSizeHintResolver(m_sizeHintResolver);
+    m_layouter = new KItemListViewLayouter(m_sizeHintResolver, this);
 
     m_animation = new KItemListViewAnimation(this);
-    connect(m_animation, SIGNAL(finished(QGraphicsWidget*,KItemListViewAnimation::AnimationType)),
-            this, SLOT(slotAnimationFinished(QGraphicsWidget*,KItemListViewAnimation::AnimationType)));
+    connect(m_animation, &KItemListViewAnimation::finished,
+            this, &KItemListView::slotAnimationFinished);
 
     m_layoutTimer = new QTimer(this);
     m_layoutTimer->setInterval(300);
     m_layoutTimer->setSingleShot(true);
-    connect(m_layoutTimer, SIGNAL(timeout()), this, SLOT(slotLayoutTimerFinished()));
+    connect(m_layoutTimer, &QTimer::timeout, this, &KItemListView::slotLayoutTimerFinished);
 
     m_rubberBand = new KItemListRubberBand(this);
-    connect(m_rubberBand, SIGNAL(activationChanged(bool)), this, SLOT(slotRubberBandActivationChanged(bool)));
+    connect(m_rubberBand, &KItemListRubberBand::activationChanged, this, &KItemListView::slotRubberBandActivationChanged);
+
+    m_tapAndHoldIndicator = new KItemListRubberBand(this);
+    m_indicatorAnimation = new QPropertyAnimation(m_tapAndHoldIndicator, "endPosition", this);
+    connect(m_tapAndHoldIndicator, &KItemListRubberBand::activationChanged, this, [this](bool active) {
+        if (active) {
+            m_indicatorAnimation->setDuration(150);
+            m_indicatorAnimation->setStartValue(QPointF(1, 1));
+            m_indicatorAnimation->setEndValue(QPointF(40, 40));
+            m_indicatorAnimation->start();
+        }
+        update();
+    });
+    connect(m_tapAndHoldIndicator, &KItemListRubberBand::endPositionChanged, this, [this]() {
+        if (m_tapAndHoldIndicator->isActive()) {
+            update();
+        }
+    });
 
     m_headerWidget = new KItemListHeaderWidget(this);
     m_headerWidget->setVisible(false);
@@ -143,13 +143,13 @@ KItemListView::~KItemListView()
     // widgetCreator(). So it is mandatory to delete the group headers
     // first.
     delete m_groupHeaderCreator;
-    m_groupHeaderCreator = 0;
+    m_groupHeaderCreator = nullptr;
 
     delete m_widgetCreator;
-    m_widgetCreator = 0;
+    m_widgetCreator = nullptr;
 
     delete m_sizeHintResolver;
-    m_sizeHintResolver = 0;
+    m_sizeHintResolver = nullptr;
 }
 
 void KItemListView::setScrollOffset(qreal offset)
@@ -268,17 +268,17 @@ void KItemListView::setAutoScroll(bool enabled)
     if (enabled && !m_autoScrollTimer) {
         m_autoScrollTimer = new QTimer(this);
         m_autoScrollTimer->setSingleShot(true);
-        connect(m_autoScrollTimer, SIGNAL(timeout()), this, SLOT(triggerAutoScrolling()));
+        connect(m_autoScrollTimer, &QTimer::timeout, this, &KItemListView::triggerAutoScrolling);
         m_autoScrollTimer->start(InitialAutoScrollDelay);
     } else if (!enabled && m_autoScrollTimer) {
         delete m_autoScrollTimer;
-        m_autoScrollTimer = 0;
+        m_autoScrollTimer = nullptr;
     }
 }
 
 bool KItemListView::autoScroll() const
 {
-    return m_autoScrollTimer != 0;
+    return m_autoScrollTimer != nullptr;
 }
 
 void KItemListView::setEnabledSelectionToggles(bool enabled)
@@ -311,9 +311,7 @@ KItemModelBase* KItemListView::model() const
 
 void KItemListView::setWidgetCreator(KItemListWidgetCreatorBase* widgetCreator)
 {
-    if (m_widgetCreator) {
-        delete m_widgetCreator;
-    }
+    delete m_widgetCreator;
     m_widgetCreator = widgetCreator;
 }
 
@@ -327,9 +325,7 @@ KItemListWidgetCreatorBase* KItemListView::widgetCreator() const
 
 void KItemListView::setGroupHeaderCreator(KItemListGroupHeaderCreatorBase* groupHeaderCreator)
 {
-    if (m_groupHeaderCreator) {
-        delete m_groupHeaderCreator;
-    }
+    delete m_groupHeaderCreator;
     m_groupHeaderCreator = groupHeaderCreator;
 }
 
@@ -450,6 +446,19 @@ bool KItemListView::isAboveExpansionToggle(int index, const QPointF& pos) const
     return false;
 }
 
+bool KItemListView::isAboveText(int index, const QPointF &pos) const
+{
+    const KItemListWidget* widget = m_visibleItems.value(index);
+    if (widget) {
+        const QRectF &textRect = widget->textRect();
+        if (!textRect.isEmpty()) {
+            const QPointF mappedPos = widget->mapFromItem(this, pos);
+            return textRect.contains(mappedPos);
+        }
+    }
+    return false;
+}
+
 int KItemListView::firstVisibleIndex() const
 {
     return m_layouter->firstVisibleIndex();
@@ -460,9 +469,9 @@ int KItemListView::lastVisibleIndex() const
     return m_layouter->lastVisibleIndex();
 }
 
-void KItemListView::calculateItemSizeHints(QVector<QSizeF>& sizeHints) const
+void KItemListView::calculateItemSizeHints(QVector<qreal>& logicalHeightHints, qreal& logicalWidthHint) const
 {
-    widgetCreator()->calculateItemSizeHints(sizeHints, this);
+    widgetCreator()->calculateItemSizeHints(logicalHeightHints, logicalWidthHint, this);
 }
 
 void KItemListView::setSupportsItemExpanding(bool supportsExpanding)
@@ -545,7 +554,7 @@ void KItemListView::endTransaction()
     --m_activeTransactions;
     if (m_activeTransactions < 0) {
         m_activeTransactions = 0;
-        kWarning() << "Mismatch between beginTransaction()/endTransaction()";
+        qCWarning(DolphinDebug) << "Mismatch between beginTransaction()/endTransaction()";
     }
 
     if (m_activeTransactions == 0) {
@@ -573,26 +582,26 @@ void KItemListView::setHeaderVisible(bool visible)
         m_headerWidget->setColumns(m_visibleRoles);
         m_headerWidget->setZValue(1);
 
-        connect(m_headerWidget, SIGNAL(columnWidthChanged(QByteArray,qreal,qreal)),
-                this, SLOT(slotHeaderColumnWidthChanged(QByteArray,qreal,qreal)));
-        connect(m_headerWidget, SIGNAL(columnMoved(QByteArray,int,int)),
-                this, SLOT(slotHeaderColumnMoved(QByteArray,int,int)));
-        connect(m_headerWidget, SIGNAL(sortOrderChanged(Qt::SortOrder,Qt::SortOrder)),
-                this, SIGNAL(sortOrderChanged(Qt::SortOrder,Qt::SortOrder)));
-        connect(m_headerWidget, SIGNAL(sortRoleChanged(QByteArray,QByteArray)),
-                this, SIGNAL(sortRoleChanged(QByteArray,QByteArray)));
+        connect(m_headerWidget, &KItemListHeaderWidget::columnWidthChanged,
+                this, &KItemListView::slotHeaderColumnWidthChanged);
+        connect(m_headerWidget, &KItemListHeaderWidget::columnMoved,
+                this, &KItemListView::slotHeaderColumnMoved);
+        connect(m_headerWidget, &KItemListHeaderWidget::sortOrderChanged,
+                this, &KItemListView::sortOrderChanged);
+        connect(m_headerWidget, &KItemListHeaderWidget::sortRoleChanged,
+                this, &KItemListView::sortRoleChanged);
 
         m_layouter->setHeaderHeight(headerSize.height());
         m_headerWidget->setVisible(true);
     } else if (!visible && m_headerWidget->isVisible()) {
-        disconnect(m_headerWidget, SIGNAL(columnWidthChanged(QByteArray,qreal,qreal)),
-                   this, SLOT(slotHeaderColumnWidthChanged(QByteArray,qreal,qreal)));
-        disconnect(m_headerWidget, SIGNAL(columnMoved(QByteArray,int,int)),
-                   this, SLOT(slotHeaderColumnMoved(QByteArray,int,int)));
-        disconnect(m_headerWidget, SIGNAL(sortOrderChanged(Qt::SortOrder,Qt::SortOrder)),
-                   this, SIGNAL(sortOrderChanged(Qt::SortOrder,Qt::SortOrder)));
-        disconnect(m_headerWidget, SIGNAL(sortRoleChanged(QByteArray,QByteArray)),
-                   this, SIGNAL(sortRoleChanged(QByteArray,QByteArray)));
+        disconnect(m_headerWidget, &KItemListHeaderWidget::columnWidthChanged,
+                   this, &KItemListView::slotHeaderColumnWidthChanged);
+        disconnect(m_headerWidget, &KItemListHeaderWidget::columnMoved,
+                   this, &KItemListView::slotHeaderColumnMoved);
+        disconnect(m_headerWidget, &KItemListHeaderWidget::sortOrderChanged,
+                   this, &KItemListView::sortOrderChanged);
+        disconnect(m_headerWidget, &KItemListHeaderWidget::sortRoleChanged,
+                   this, &KItemListView::sortRoleChanged);
 
         m_layouter->setHeaderHeight(0);
         m_headerWidget->setVisible(false);
@@ -617,7 +626,7 @@ QPixmap KItemListView::createDragPixmap(const KItemSet& indexes) const
         KItemListWidget* item = m_visibleItems.value(indexes.first());
         QGraphicsView* graphicsView = scene()->views()[0];
         if (item && graphicsView) {
-            pixmap = item->createDragPixmap(0, graphicsView);
+            pixmap = item->createDragPixmap(nullptr, graphicsView);
         }
     } else {
         // TODO: Not implemented yet. Probably extend the interface
@@ -630,7 +639,7 @@ QPixmap KItemListView::createDragPixmap(const KItemSet& indexes) const
 
 void KItemListView::editRole(int index, const QByteArray& role)
 {
-    KItemListWidget* widget = m_visibleItems.value(index);
+    KStandardItemListWidget* widget = qobject_cast<KStandardItemListWidget *>(m_visibleItems.value(index));
     if (!widget || m_editingRole) {
         return;
     }
@@ -638,10 +647,13 @@ void KItemListView::editRole(int index, const QByteArray& role)
     m_editingRole = true;
     widget->setEditedRole(role);
 
-    connect(widget, SIGNAL(roleEditingCanceled(int,QByteArray,QVariant)),
-            this, SLOT(slotRoleEditingCanceled(int,QByteArray,QVariant)));
-    connect(widget, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
-            this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
+    connect(widget, &KItemListWidget::roleEditingCanceled,
+            this, &KItemListView::slotRoleEditingCanceled);
+    connect(widget, &KItemListWidget::roleEditingFinished,
+            this, &KItemListView::slotRoleEditingFinished);
+
+    connect(this, &KItemListView::scrollOffsetChanged,
+            widget, &KStandardItemListWidget::finishRoleEditing);
 }
 
 void KItemListView::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
@@ -660,7 +672,19 @@ void KItemListView::paint(QPainter* painter, const QStyleOptionGraphicsItem* opt
         }
 
         QStyleOptionRubberBand opt;
-        opt.initFrom(widget);
+        initStyleOption(&opt);
+        opt.shape = QRubberBand::Rectangle;
+        opt.opaque = false;
+        opt.rect = rubberBandRect.toRect();
+        style()->drawControl(QStyle::CE_RubberBand, &opt, painter);
+    }
+
+    if (m_tapAndHoldIndicator->isActive()) {
+        const QPointF indicatorSize = m_tapAndHoldIndicator->endPosition();
+        const QRectF rubberBandRect = QRectF(m_tapAndHoldIndicator->startPosition() - indicatorSize,
+                                    (m_tapAndHoldIndicator->startPosition()) + indicatorSize).normalized();
+        QStyleOptionRubberBand opt;
+        initStyleOption(&opt);
         opt.shape = QRubberBand::Rectangle;
         opt.opaque = false;
         opt.rect = rubberBandRect.toRect();
@@ -670,7 +694,7 @@ void KItemListView::paint(QPainter* painter, const QStyleOptionGraphicsItem* opt
     if (!m_dropIndicator.isEmpty()) {
         const QRectF r = m_dropIndicator.toRect();
 
-        QColor color = palette().brush(QPalette::Normal, QPalette::Highlight).color();
+        QColor color = palette().brush(QPalette::Normal, QPalette::Text).color();
         painter->setPen(color);
 
         // TODO: The following implementation works only for a vertical scroll-orientation
@@ -742,6 +766,10 @@ void KItemListView::setItemSize(const QSizeF& size)
 
 void KItemListView::setStyleOption(const KItemListStyleOption& option)
 {
+    if (m_styleOption == option) {
+        return;
+    }
+
     const KItemListStyleOption previousOption = m_styleOption;
     m_styleOption = option;
 
@@ -761,7 +789,8 @@ void KItemListView::setStyleOption(const KItemListStyleOption& option)
         updateGroupHeaderHeight();
     }
 
-    if (animate && previousOption.maxTextSize != option.maxTextSize) {
+    if (animate &&
+        (previousOption.maxTextLines != option.maxTextLines || previousOption.maxTextWidth != option.maxTextWidth)) {
         // Animating a change of the maximum text size just results in expensive
         // temporary eliding and clipping operations and does not look good visually.
         animate = false;
@@ -818,70 +847,70 @@ Qt::Orientation KItemListView::scrollOrientation() const
 
 KItemListWidgetCreatorBase* KItemListView::defaultWidgetCreator() const
 {
-    return 0;
+    return nullptr;
 }
 
 KItemListGroupHeaderCreatorBase* KItemListView::defaultGroupHeaderCreator() const
 {
-    return 0;
+    return nullptr;
 }
 
 void KItemListView::initializeItemListWidget(KItemListWidget* item)
 {
-    Q_UNUSED(item);
+    Q_UNUSED(item)
 }
 
 bool KItemListView::itemSizeHintUpdateRequired(const QSet<QByteArray>& changedRoles) const
 {
-    Q_UNUSED(changedRoles);
+    Q_UNUSED(changedRoles)
     return true;
 }
 
 void KItemListView::onControllerChanged(KItemListController* current, KItemListController* previous)
 {
-    Q_UNUSED(current);
-    Q_UNUSED(previous);
+    Q_UNUSED(current)
+    Q_UNUSED(previous)
 }
 
 void KItemListView::onModelChanged(KItemModelBase* current, KItemModelBase* previous)
 {
-    Q_UNUSED(current);
-    Q_UNUSED(previous);
+    Q_UNUSED(current)
+    Q_UNUSED(previous)
 }
 
 void KItemListView::onScrollOrientationChanged(Qt::Orientation current, Qt::Orientation previous)
 {
-    Q_UNUSED(current);
-    Q_UNUSED(previous);
+    Q_UNUSED(current)
+    Q_UNUSED(previous)
 }
 
 void KItemListView::onItemSizeChanged(const QSizeF& current, const QSizeF& previous)
 {
-    Q_UNUSED(current);
-    Q_UNUSED(previous);
+    Q_UNUSED(current)
+    Q_UNUSED(previous)
 }
 
 void KItemListView::onScrollOffsetChanged(qreal current, qreal previous)
 {
-    Q_UNUSED(current);
-    Q_UNUSED(previous);
+    Q_UNUSED(current)
+    Q_UNUSED(previous)
 }
 
 void KItemListView::onVisibleRolesChanged(const QList<QByteArray>& current, const QList<QByteArray>& previous)
 {
-    Q_UNUSED(current);
-    Q_UNUSED(previous);
+    Q_UNUSED(current)
+    Q_UNUSED(previous)
 }
 
 void KItemListView::onStyleOptionChanged(const KItemListStyleOption& current, const KItemListStyleOption& previous)
 {
-    Q_UNUSED(current);
-    Q_UNUSED(previous);
+    Q_UNUSED(current)
+    Q_UNUSED(previous)
 }
 
 void KItemListView::onSupportsItemExpandingChanged(bool supportsExpanding)
 {
-    Q_UNUSED(supportsExpanding);
+    Q_UNUSED(supportsExpanding)
 }
 
 void KItemListView::onTransactionBegin()
@@ -894,11 +923,23 @@ void KItemListView::onTransactionEnd()
 
 bool KItemListView::event(QEvent* event)
 {
-    // Forward all events to the controller and handle them there
-    if (!m_editingRole && m_controller && m_controller->processEvent(event, transform())) {
-        event->accept();
-        return true;
+    switch (event->type()) {
+    case QEvent::PaletteChange:
+        updatePalette();
+        break;
+
+    case QEvent::FontChange:
+        updateFont();
+        break;
+
+    default:
+        // Forward all other events to the controller and handle them there
+        if (!m_editingRole && m_controller && m_controller->processEvent(event, transform())) {
+            event->accept();
+            return true;
+        }
     }
+
     return QGraphicsWidget::event(event);
 }
 
@@ -924,7 +965,7 @@ void KItemListView::dragEnterEvent(QGraphicsSceneDragDropEvent* event)
     setAutoScroll(true);
 }
 
-void KItemListView::dragMoveEvent(QGraphicsSceneDragDropEvent *event)
+void KItemListView::dragMoveEvent(QGraphicsSceneDragDropEventevent)
 {
     QGraphicsWidget::dragMoveEvent(event);
 
@@ -934,7 +975,7 @@ void KItemListView::dragMoveEvent(QGraphicsSceneDragDropEvent *event)
     }
 }
 
-void KItemListView::dragLeaveEvent(QGraphicsSceneDragDropEvent *event)
+void KItemListView::dragLeaveEvent(QGraphicsSceneDragDropEventevent)
 {
     QGraphicsWidget::dragLeaveEvent(event);
     setAutoScroll(false);
@@ -951,6 +992,27 @@ QList<KItemListWidget*> KItemListView::visibleItemListWidgets() const
     return m_visibleItems.values();
 }
 
+void KItemListView::updateFont()
+{
+    if (scene() && !scene()->views().isEmpty()) {
+        KItemListStyleOption option = styleOption();
+        option.font = scene()->views().first()->font();
+        option.fontMetrics = QFontMetrics(option.font);
+
+        setStyleOption(option);
+    }
+}
+
+void KItemListView::updatePalette()
+{
+    if (scene() && !scene()->views().isEmpty()) {
+        KItemListStyleOption option = styleOption();
+        option.palette = scene()->views().first()->palette();
+
+        setStyleOption(option);
+    }
+}
+
 void KItemListView::slotItemsInserted(const KItemRangeList& itemRanges)
 {
     if (m_itemSize.isEmpty()) {
@@ -974,7 +1036,7 @@ void KItemListView::slotItemsInserted(const KItemRangeList& itemRanges)
         const int index = range.index + previouslyInsertedCount;
         const int count = range.count;
         if (index < 0 || count <= 0) {
-            kWarning() << "Invalid item range (index:" << index << ", count:" << count << ")";
+            qCWarning(DolphinDebug) << "Invalid item range (index:" << index << ", count:" << count << ")";
             continue;
         }
         previouslyInsertedCount += count;
@@ -993,7 +1055,7 @@ void KItemListView::slotItemsInserted(const KItemRangeList& itemRanges)
         // Update the indexes of all KItemListWidget instances that are located
         // after the inserted items. It is important to adjust the indexes in the order
         // from the highest index to the lowest index to prevent overlaps when setting the new index.
-        qSort(itemsToMove);
+        std::sort(itemsToMove.begin(), itemsToMove.end());
         for (int i = itemsToMove.count() - 1; i >= 0; --i) {
             KItemListWidget* widget = m_visibleItems.value(itemsToMove[i]);
             Q_ASSERT(widget);
@@ -1015,11 +1077,17 @@ void KItemListView::slotItemsInserted(const KItemRangeList& itemRanges)
                                               (!verticalScrollOrientation && maximumScrollOffset() > size().width());
             if (decreaseLayouterSize) {
                 const int scrollBarExtent = style()->pixelMetric(QStyle::PM_ScrollBarExtent);
+
+                int scrollbarSpacing = 0;
+                if (style()->styleHint(QStyle::SH_ScrollView_FrameOnlyAroundContents)) {
+                    scrollbarSpacing = style()->pixelMetric(QStyle::PM_ScrollView_ScrollBarSpacing);
+                }
+
                 QSizeF layouterSize = m_layouter->size();
                 if (verticalScrollOrientation) {
-                    layouterSize.rwidth() -= scrollBarExtent;
+                    layouterSize.rwidth() -= scrollBarExtent + scrollbarSpacing;
                 } else {
-                    layouterSize.rheight() -= scrollBarExtent;
+                    layouterSize.rheight() -= scrollBarExtent + scrollbarSpacing;
                 }
                 m_layouter->setSize(layouterSize);
             }
@@ -1076,14 +1144,14 @@ void KItemListView::slotItemsRemoved(const KItemRangeList& itemRanges)
         const int index = range.index;
         const int count = range.count;
         if (index < 0 || count <= 0) {
-            kWarning() << "Invalid item range (index:" << index << ", count:" << count << ")";
+            qCWarning(DolphinDebug) << "Invalid item range (index:" << index << ", count:" << count << ")";
             continue;
         }
 
         const int firstRemovedIndex = index;
         const int lastRemovedIndex = index + count - 1;
 
-        // Remeber which items have to be moved because they are behind the removed range.
+        // Remember which items have to be moved because they are behind the removed range.
         QVector<int> itemsToMove;
 
         // Remove all KItemListWidget instances that got deleted
@@ -1229,8 +1297,12 @@ void KItemListView::slotItemsChanged(const KItemRangeList& itemRanges,
             updateVisibleGroupHeaders();
             doLayout(NoAnimation);
         }
+
+        QAccessibleTableModelChangeEvent ev(this, QAccessibleTableModelChangeEvent::DataChanged);
+        ev.setFirstRow(itemRange.index);
+        ev.setLastRow(itemRange.index + itemRange.count);
+        QAccessible::updateAccessibility(&ev);
     }
-    QAccessible::updateAccessibility(this, 0, QAccessible::TableModelChanged);
 }
 
 void KItemListView::slotGroupsChanged()
@@ -1271,8 +1343,8 @@ void KItemListView::slotGroupedSortingChanged(bool current)
 
 void KItemListView::slotSortOrderChanged(Qt::SortOrder current, Qt::SortOrder previous)
 {
-    Q_UNUSED(current);
-    Q_UNUSED(previous);
+    Q_UNUSED(current)
+    Q_UNUSED(previous)
     if (m_grouped) {
         updateVisibleGroupHeaders();
         doLayout(NoAnimation);
@@ -1281,8 +1353,8 @@ void KItemListView::slotSortOrderChanged(Qt::SortOrder current, Qt::SortOrder pr
 
 void KItemListView::slotSortRoleChanged(const QByteArray& current, const QByteArray& previous)
 {
-    Q_UNUSED(current);
-    Q_UNUSED(previous);
+    Q_UNUSED(current)
+    Q_UNUSED(previous)
     if (m_grouped) {
         updateVisibleGroupHeaders();
         doLayout(NoAnimation);
@@ -1291,23 +1363,30 @@ void KItemListView::slotSortRoleChanged(const QByteArray& current, const QByteAr
 
 void KItemListView::slotCurrentChanged(int current, int previous)
 {
-    Q_UNUSED(previous);
+    Q_UNUSED(previous)
 
-    KItemListWidget* previousWidget = m_visibleItems.value(previous, 0);
-    if (previousWidget) {
-        previousWidget->setCurrent(false);
-    }
+    // In SingleSelection mode (e.g., in the Places Panel), the current item is
+    // always the selected item. It is not necessary to highlight the current item then.
+    if (m_controller->selectionBehavior() != KItemListController::SingleSelection) {
+        KItemListWidget* previousWidget = m_visibleItems.value(previous, nullptr);
+        if (previousWidget) {
+            previousWidget->setCurrent(false);
+        }
 
-    KItemListWidget* currentWidget = m_visibleItems.value(current, 0);
-    if (currentWidget) {
-        currentWidget->setCurrent(true);
+        KItemListWidget* currentWidget = m_visibleItems.value(current, nullptr);
+        if (currentWidget) {
+            currentWidget->setCurrent(true);
+        }
     }
-    QAccessible::updateAccessibility(this, current+1, QAccessible::Focus);
+
+    QAccessibleEvent ev(this, QAccessible::Focus);
+    ev.setChild(current);
+    QAccessible::updateAccessibility(&ev);
 }
 
 void KItemListView::slotSelectionChanged(const KItemSet& current, const KItemSet& previous)
 {
-    Q_UNUSED(previous);
+    Q_UNUSED(previous)
 
     QHashIterator<int, KItemListWidget*> it(m_visibleItems);
     while (it.hasNext()) {
@@ -1369,12 +1448,12 @@ void KItemListView::slotRubberBandPosChanged()
 void KItemListView::slotRubberBandActivationChanged(bool active)
 {
     if (active) {
-        connect(m_rubberBand, SIGNAL(startPositionChanged(QPointF,QPointF)), this, SLOT(slotRubberBandPosChanged()));
-        connect(m_rubberBand, SIGNAL(endPositionChanged(QPointF,QPointF)), this, SLOT(slotRubberBandPosChanged()));
+        connect(m_rubberBand, &KItemListRubberBand::startPositionChanged, this, &KItemListView::slotRubberBandPosChanged);
+        connect(m_rubberBand, &KItemListRubberBand::endPositionChanged, this, &KItemListView::slotRubberBandPosChanged);
         m_skipAutoScrollForRubberBand = true;
     } else {
-        disconnect(m_rubberBand, SIGNAL(startPositionChanged(QPointF,QPointF)), this, SLOT(slotRubberBandPosChanged()));
-        disconnect(m_rubberBand, SIGNAL(endPositionChanged(QPointF,QPointF)), this, SLOT(slotRubberBandPosChanged()));
+        disconnect(m_rubberBand, &KItemListRubberBand::startPositionChanged, this, &KItemListView::slotRubberBandPosChanged);
+        disconnect(m_rubberBand, &KItemListRubberBand::endPositionChanged, this, &KItemListView::slotRubberBandPosChanged);
         m_skipAutoScrollForRubberBand = false;
     }
 
@@ -1385,9 +1464,9 @@ void KItemListView::slotHeaderColumnWidthChanged(const QByteArray& role,
                                                  qreal currentWidth,
                                                  qreal previousWidth)
 {
-    Q_UNUSED(role);
-    Q_UNUSED(currentWidth);
-    Q_UNUSED(previousWidth);
+    Q_UNUSED(role)
+    Q_UNUSED(currentWidth)
+    Q_UNUSED(previousWidth)
 
     m_headerWidget->setAutomaticColumnResizing(false);
     applyColumnWidthsFromHeader();
@@ -1501,16 +1580,16 @@ void KItemListView::setController(KItemListController* controller)
         KItemListController* previous = m_controller;
         if (previous) {
             KItemListSelectionManager* selectionManager = previous->selectionManager();
-            disconnect(selectionManager, SIGNAL(currentChanged(int,int)), this, SLOT(slotCurrentChanged(int,int)));
-            disconnect(selectionManager, SIGNAL(selectionChanged(KItemSet,KItemSet)), this, SLOT(slotSelectionChanged(KItemSet,KItemSet)));
+            disconnect(selectionManager, &KItemListSelectionManager::currentChanged, this, &KItemListView::slotCurrentChanged);
+            disconnect(selectionManager, &KItemListSelectionManager::selectionChanged, this, &KItemListView::slotSelectionChanged);
         }
 
         m_controller = controller;
 
         if (controller) {
             KItemListSelectionManager* selectionManager = controller->selectionManager();
-            connect(selectionManager, SIGNAL(currentChanged(int,int)), this, SLOT(slotCurrentChanged(int,int)));
-            connect(selectionManager, SIGNAL(selectionChanged(KItemSet,KItemSet)), this, SLOT(slotSelectionChanged(KItemSet,KItemSet)));
+            connect(selectionManager, &KItemListSelectionManager::currentChanged, this, &KItemListView::slotCurrentChanged);
+            connect(selectionManager, &KItemListSelectionManager::selectionChanged, this, &KItemListView::slotSelectionChanged);
         }
 
         onControllerChanged(controller, previous);
@@ -1526,22 +1605,22 @@ void KItemListView::setModel(KItemModelBase* model)
     KItemModelBase* previous = m_model;
 
     if (m_model) {
-        disconnect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
-                   this,    SLOT(slotItemsChanged(KItemRangeList,QSet<QByteArray>)));
-        disconnect(m_model, SIGNAL(itemsInserted(KItemRangeList)),
-                   this,    SLOT(slotItemsInserted(KItemRangeList)));
-        disconnect(m_model, SIGNAL(itemsRemoved(KItemRangeList)),
-                   this,    SLOT(slotItemsRemoved(KItemRangeList)));
-        disconnect(m_model, SIGNAL(itemsMoved(KItemRange,QList<int>)),
-                   this,    SLOT(slotItemsMoved(KItemRange,QList<int>)));
-        disconnect(m_model, SIGNAL(groupsChanged()),
-                   this,    SLOT(slotGroupsChanged()));
-        disconnect(m_model, SIGNAL(groupedSortingChanged(bool)),
-                   this,    SLOT(slotGroupedSortingChanged(bool)));
-        disconnect(m_model, SIGNAL(sortOrderChanged(Qt::SortOrder,Qt::SortOrder)),
-                   this,    SLOT(slotSortOrderChanged(Qt::SortOrder,Qt::SortOrder)));
-        disconnect(m_model, SIGNAL(sortRoleChanged(QByteArray,QByteArray)),
-                   this,    SLOT(slotSortRoleChanged(QByteArray,QByteArray)));
+        disconnect(m_model, &KItemModelBase::itemsChanged,
+                   this,    &KItemListView::slotItemsChanged);
+        disconnect(m_model, &KItemModelBase::itemsInserted,
+                   this,    &KItemListView::slotItemsInserted);
+        disconnect(m_model, &KItemModelBase::itemsRemoved,
+                   this,    &KItemListView::slotItemsRemoved);
+        disconnect(m_model, &KItemModelBase::itemsMoved,
+                   this,    &KItemListView::slotItemsMoved);
+        disconnect(m_model, &KItemModelBase::groupsChanged,
+                   this,    &KItemListView::slotGroupsChanged);
+        disconnect(m_model, &KItemModelBase::groupedSortingChanged,
+                   this,    &KItemListView::slotGroupedSortingChanged);
+        disconnect(m_model, &KItemModelBase::sortOrderChanged,
+                   this,    &KItemListView::slotSortOrderChanged);
+        disconnect(m_model, &KItemModelBase::sortRoleChanged,
+                   this,    &KItemListView::slotSortRoleChanged);
 
         m_sizeHintResolver->itemsRemoved(KItemRangeList() << KItemRange(0, m_model->count()));
     }
@@ -1551,22 +1630,22 @@ void KItemListView::setModel(KItemModelBase* model)
     m_grouped = model->groupedSorting();
 
     if (m_model) {
-        connect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
-                this,    SLOT(slotItemsChanged(KItemRangeList,QSet<QByteArray>)));
-        connect(m_model, SIGNAL(itemsInserted(KItemRangeList)),
-                this,    SLOT(slotItemsInserted(KItemRangeList)));
-        connect(m_model, SIGNAL(itemsRemoved(KItemRangeList)),
-                this,    SLOT(slotItemsRemoved(KItemRangeList)));
-        connect(m_model, SIGNAL(itemsMoved(KItemRange,QList<int>)),
-                this,    SLOT(slotItemsMoved(KItemRange,QList<int>)));
-        connect(m_model, SIGNAL(groupsChanged()),
-                this,    SLOT(slotGroupsChanged()));
-        connect(m_model, SIGNAL(groupedSortingChanged(bool)),
-                this,    SLOT(slotGroupedSortingChanged(bool)));
-        connect(m_model, SIGNAL(sortOrderChanged(Qt::SortOrder,Qt::SortOrder)),
-                this,    SLOT(slotSortOrderChanged(Qt::SortOrder,Qt::SortOrder)));
-        connect(m_model, SIGNAL(sortRoleChanged(QByteArray,QByteArray)),
-                this,    SLOT(slotSortRoleChanged(QByteArray,QByteArray)));
+        connect(m_model, &KItemModelBase::itemsChanged,
+                this,    &KItemListView::slotItemsChanged);
+        connect(m_model, &KItemModelBase::itemsInserted,
+                this,    &KItemListView::slotItemsInserted);
+        connect(m_model, &KItemModelBase::itemsRemoved,
+                this,    &KItemListView::slotItemsRemoved);
+        connect(m_model, &KItemModelBase::itemsMoved,
+                this,    &KItemListView::slotItemsMoved);
+        connect(m_model, &KItemModelBase::groupsChanged,
+                this,    &KItemListView::slotGroupsChanged);
+        connect(m_model, &KItemModelBase::groupedSortingChanged,
+                this,    &KItemListView::slotGroupedSortingChanged);
+        connect(m_model, &KItemModelBase::sortOrderChanged,
+                this,    &KItemListView::slotSortOrderChanged);
+        connect(m_model, &KItemModelBase::sortRoleChanged,
+                this,    &KItemListView::slotSortRoleChanged);
 
         const int itemCount = m_model->count();
         if (itemCount > 0) {
@@ -1939,7 +2018,12 @@ void KItemListView::updateWidgetProperties(KItemListWidget* widget, int index)
     widget->setStyleOption(m_styleOption);
 
     const KItemListSelectionManager* selectionManager = m_controller->selectionManager();
-    widget->setCurrent(index == selectionManager->currentItem());
+
+    // In SingleSelection mode (e.g., in the Places Panel), the current item is
+    // always the selected item. It is not necessary to highlight the current item then.
+    if (m_controller->selectionBehavior() != KItemListController::SingleSelection) {
+        widget->setCurrent(index == selectionManager->currentItem());
+    }
     widget->setSelected(selectionManager->isSelected(index));
     widget->setHovered(false);
     widget->setEnabledSelectionToggle(enabledSelectionToggles());
@@ -1975,7 +2059,7 @@ void KItemListView::updateGroupHeaderForWidget(KItemListWidget* widget)
         groupHeader = groupHeaderCreator()->create(this);
         groupHeader->setParentItem(widget);
         m_visibleGroups.insert(widget, groupHeader);
-        connect(widget, SIGNAL(geometryChanged()), this, SLOT(slotGeometryOfGroupHeaderParentChanged()));
+        connect(widget, &KItemListWidget::geometryChanged, this, &KItemListView::slotGeometryOfGroupHeaderParentChanged);
     }
     Q_ASSERT(groupHeader->parentItem() == widget);
 
@@ -2019,10 +2103,10 @@ void KItemListView::recycleGroupHeaderForWidget(KItemListWidget* widget)
 {
     KItemListGroupHeader* header = m_visibleGroups.value(widget);
     if (header) {
-        header->setParentItem(0);
+        header->setParentItem(nullptr);
         groupHeaderCreator()->recycle(header);
         m_visibleGroups.remove(widget);
-        disconnect(widget, SIGNAL(geometryChanged()), this, SLOT(slotGeometryOfGroupHeaderParentChanged()));
+        disconnect(widget, &KItemListWidget::geometryChanged, this, &KItemListView::slotGeometryOfGroupHeaderParentChanged);
     }
 }
 
@@ -2383,7 +2467,7 @@ int KItemListView::showDropIndicator(const QPointF& pos)
         if (mappedPos.y() >= 0 && mappedPos.y() <= rect.height()) {
             if (m_model->supportsDropping(widget->index())) {
                 // Keep 30% of the rectangle as the gap instead of always having a fixed gap
-                const int gap = qMax(4.0, 0.3 * rect.height());
+                const int gap = qMax(qreal(4.0), qreal(0.3) * rect.height());
                 if (mappedPos.y() >= gap && mappedPos.y() <= rect.height() - gap) {
                     return -1;
                 }
@@ -2480,7 +2564,7 @@ void KItemListView::updateSiblingsInformation(int firstIndex, int lastIndex)
             const int parents = m_model->expandedParentsCount(lastIndex + 1);
             for (int i = lastIndex; i >= firstIndex; --i) {
                 if (m_model->expandedParentsCount(i) != parents) {
-                    widget = 0;
+                    widget = nullptr;
                     break;
                 }
             }
@@ -2571,13 +2655,14 @@ bool KItemListView::hasSiblingSuccessor(int index) const
 
 void KItemListView::disconnectRoleEditingSignals(int index)
 {
-    KItemListWidget* widget = m_visibleItems.value(index);
+    KStandardItemListWidget* widget = qobject_cast<KStandardItemListWidget *>(m_visibleItems.value(index));
     if (!widget) {
         return;
     }
 
-    widget->disconnect(SIGNAL(roleEditingCanceled(int,QByteArray,QVariant)), this);
-    widget->disconnect(SIGNAL(roleEditingFinished(int,QByteArray,QVariant)), this);
+    disconnect(widget, &KItemListWidget::roleEditingCanceled, this, nullptr);
+    disconnect(widget, &KItemListWidget::roleEditingFinished, this, nullptr);
+    disconnect(this, &KItemListView::scrollOffsetChanged, widget, nullptr);
 }
 
 int KItemListView::calculateAutoScrollingIncrement(int pos, int range, int oldInc)
@@ -2642,7 +2727,7 @@ void KItemListCreatorBase::pushRecycleableWidget(QGraphicsWidget* widget)
 QGraphicsWidget* KItemListCreatorBase::popRecycleableWidget()
 {
     if (m_recycleableWidgets.isEmpty()) {
-        return 0;
+        return nullptr;
     }
 
     QGraphicsWidget* widget = m_recycleableWidgets.takeLast();
@@ -2656,7 +2741,7 @@ KItemListWidgetCreatorBase::~KItemListWidgetCreatorBase()
 
 void KItemListWidgetCreatorBase::recycle(KItemListWidget* widget)
 {
-    widget->setParentItem(0);
+    widget->setParentItem(nullptr);
     widget->setOpacity(1.0);
     pushRecycleableWidget(widget);
 }
@@ -2671,4 +2756,3 @@ void KItemListGroupHeaderCreatorBase::recycle(KItemListGroupHeader* header)
     pushRecycleableWidget(header);
 }
 
-#include "kitemlistview.moc"