#include <QApplication>
#include <QDrag>
#include <QEvent>
+#include <QGraphicsScene>
#include <QGraphicsSceneEvent>
+#include <QGraphicsView>
#include <QMimeData>
+#include <QTimer>
#include <KGlobalSettings>
#include <KDebug>
KItemListController::KItemListController(QObject* parent) :
QObject(parent),
+ m_singleClickActivation(KGlobalSettings::singleClick()),
m_selectionTogglePressed(false),
m_selectionBehavior(NoSelection),
m_model(0),
m_keyboardManager(new KItemListKeyboardSearchManager(this)),
m_pressedIndex(-1),
m_pressedMousePos(),
- m_oldSelection()
+ m_autoActivationTimer(0),
+ m_oldSelection(),
+ m_keyboardAnchorIndex(-1),
+ m_keyboardAnchorPos(0)
{
connect(m_keyboardManager, SIGNAL(changeCurrentItem(QString,bool)),
this, SLOT(slotChangeCurrentItem(QString,bool)));
+
+ m_autoActivationTimer = new QTimer(this);
+ m_autoActivationTimer->setSingleShot(true);
+ m_autoActivationTimer->setInterval(-1);
+ connect(m_autoActivationTimer, SIGNAL(timeout()), this, SLOT(slotAutoActivationTimeout()));
}
KItemListController::~KItemListController()
return m_selectionBehavior;
}
+void KItemListController::setAutoActivationDelay(int delay)
+{
+ m_autoActivationTimer->setInterval(delay);
+}
+
+int KItemListController::autoActivationDelay() const
+{
+ return m_autoActivationTimer->interval();
+}
+
+void KItemListController::setSingleClickActivation(bool singleClick)
+{
+ m_singleClickActivation = singleClick;
+}
+
+bool KItemListController::singleClickActivation() const
+{
+ return m_singleClickActivation;
+}
+
bool KItemListController::showEvent(QShowEvent* event)
{
Q_UNUSED(event);
const bool shiftOrControlPressed = shiftPressed || controlPressed;
const int itemCount = m_model->count();
- const int itemsPerRow = m_view->itemsPerOffset();
// For horizontal scroll orientation, transform
// the arrow keys to simplify the event handling.
default: break;
}
}
-
+
+ const bool selectSingleItem = itemCount == 1 &&
+ (key == Qt::Key_Home || key == Qt::Key_End ||
+ key == Qt::Key_Up || key == Qt::Key_Down ||
+ key == Qt::Key_Left || key == Qt::Key_Right);
+ if (selectSingleItem) {
+ const int current = m_selectionManager->currentItem();
+ m_selectionManager->setSelected(current);
+ return true;
+ }
switch (key) {
case Qt::Key_Home:
case Qt::Key_Left:
if (index > 0) {
- index--;
+ --index;
+ m_keyboardAnchorIndex = index;
+ m_keyboardAnchorPos = keyboardAnchorPos(index);
}
break;
case Qt::Key_Right:
if (index < itemCount - 1) {
- index++;
+ ++index;
+ m_keyboardAnchorIndex = index;
+ m_keyboardAnchorPos = keyboardAnchorPos(index);
}
break;
case Qt::Key_Up:
- if (index >= itemsPerRow) {
- index -= itemsPerRow;
- }
+ updateKeyboardAnchor();
+ index = previousRowIndex();
break;
case Qt::Key_Down:
- if (index + itemsPerRow < itemCount) {
- // We are not in the last row yet.
- index += itemsPerRow;
- }
- else {
- // We are either in the last row already, or we are in the second-last row,
- // and there is no item below the current item.
- // In the latter case, we jump to the very last item.
- const int currentColumn = index % itemsPerRow;
- const int lastItemColumn = (itemCount - 1) % itemsPerRow;
- const bool inLastRow = currentColumn < lastItemColumn;
- if (!inLastRow) {
- index = itemCount - 1;
- }
- }
+ updateKeyboardAnchor();
+ index = nextRowIndex();
break;
case Qt::Key_Enter:
- case Qt::Key_Return:
- emit itemActivated(index);
+ case Qt::Key_Return: {
+ const QSet<int> selectedItems = m_selectionManager->selectedItems();
+ if (selectedItems.count() >= 2) {
+ emit itemsActivated(selectedItems);
+ } else if (selectedItems.count() == 1) {
+ emit itemActivated(selectedItems.toList().first());
+ } else {
+ emit itemActivated(index);
+ }
break;
+ }
case Qt::Key_Space:
if (controlPressed) {
m_selectionManager->endAnchoredSelection();
m_selectionManager->setSelected(index, 1, KItemListSelectionManager::Toggle);
m_selectionManager->beginAnchoredSelection(index);
- break;
+ } else {
+ const int current = m_selectionManager->currentItem();
+ m_selectionManager->setSelected(current);
+ }
+ break;
+
+ case Qt::Key_Menu: {
+ // Emit the signal itemContextMenuRequested() in case if at least one
+ // item is selected. Otherwise the signal viewContextMenuRequested() will be emitted.
+ const QSet<int> selectedItems = m_selectionManager->selectedItems();
+ int index = -1;
+ if (selectedItems.count() >= 2) {
+ const int currentItemIndex = m_selectionManager->currentItem();
+ index = selectedItems.contains(currentItemIndex)
+ ? currentItemIndex : selectedItems.toList().first();
+ } else if (selectedItems.count() == 1) {
+ index = selectedItems.toList().first();
+ }
+
+ if (index >= 0) {
+ const QRectF contextRect = m_view->itemContextRect(index);
+ const QPointF pos(m_view->scene()->views().first()->mapToGlobal(contextRect.bottomRight().toPoint()));
+ emit itemContextMenuRequested(index, pos);
+ } else {
+ emit viewContextMenuRequested(QCursor::pos());
}
+ break;
+ }
default:
m_keyboardManager->addKeys(event->text());
int index;
if (searchFromNextItem) {
index = m_model->indexForKeyboardSearch(text, (currentIndex + 1) % m_model->count());
- }
- else {
+ } else {
index = m_model->indexForKeyboardSearch(text, currentIndex);
}
if (index >= 0) {
m_selectionManager->clearSelection();
m_selectionManager->setSelected(index, 1);
m_selectionManager->beginAnchoredSelection(index);
+ m_view->scrollToItem(index);
+ }
+}
+
+void KItemListController::slotAutoActivationTimeout()
+{
+ if (!m_model || !m_view) {
+ return;
+ }
+
+ const int index = m_autoActivationTimer->property("index").toInt();
+ if (index < 0 || index >= m_model->count()) {
+ return;
+ }
+
+ if (m_model->supportsDropping(index)) {
+ if (m_view->supportsItemExpanding() && m_model->isExpandable(index)) {
+ const bool expanded = m_model->isExpanded(index);
+ m_model->setExpanded(index, !expanded);
+ } else {
+ emit itemActivated(index);
+ }
}
}
m_pressedMousePos = transform.map(event->pos());
m_pressedIndex = m_view->itemAt(m_pressedMousePos);
+ if (m_pressedIndex >= 0) {
+ emit itemPressed(m_pressedIndex, event->button());
+ }
if (m_view->isAboveExpansionToggle(m_pressedIndex, m_pressedMousePos)) {
m_selectionManager->setCurrentItem(m_pressedIndex);
m_selectionTogglePressed = m_view->isAboveSelectionToggle(m_pressedIndex, m_pressedMousePos);
if (m_selectionTogglePressed) {
m_selectionManager->setSelected(m_pressedIndex, 1, KItemListSelectionManager::Toggle);
+ // The previous anchored selection has been finished already in
+ // KItemListSelectionManager::setSelected(). We can safely change
+ // the current item and start a new anchored selection now.
+ m_selectionManager->setCurrentItem(m_pressedIndex);
+ m_selectionManager->beginAnchoredSelection(m_pressedIndex);
return true;
}
const bool shiftPressed = event->modifiers() & Qt::ShiftModifier;
const bool controlPressed = event->modifiers() & Qt::ControlModifier;
- if (m_selectionBehavior == SingleSelection) {
+ // The previous selection is cleared if either
+ // 1. The selection mode is SingleSelection, or
+ // 2. the selection mode is MultiSelection, and *none* of the following conditions are met:
+ // a) Shift or Control are pressed.
+ // b) The clicked item is selected already. In that case, the user might want to:
+ // - start dragging multiple items, or
+ // - open the context menu and perform an action for all selected items.
+ const bool shiftOrControlPressed = shiftPressed || controlPressed;
+ const bool pressedItemAlreadySelected = m_pressedIndex >= 0 && m_selectionManager->isSelected(m_pressedIndex);
+ const bool clearSelection = m_selectionBehavior == SingleSelection ||
+ (!shiftOrControlPressed && !pressedItemAlreadySelected);
+ if (clearSelection) {
m_selectionManager->clearSelection();
}
if (controlPressed) {
m_selectionManager->setSelected(m_pressedIndex, 1, KItemListSelectionManager::Toggle);
m_selectionManager->beginAnchoredSelection(m_pressedIndex);
- } else if (event->buttons() & Qt::RightButton) {
- // Only clear the selection if a context menu is requested above a non-selected item
- if (!m_selectionManager->selectedItems().contains(m_pressedIndex)) {
- m_selectionManager->setSelectedItems(QSet<int>() << m_pressedIndex);
- }
} else if (!shiftPressed || !m_selectionManager->isAnchoredSelectionActive()) {
// Select the pressed item and start a new anchored selection
m_selectionManager->setSelected(m_pressedIndex, 1, KItemListSelectionManager::Select);
}
if (event->buttons() & Qt::RightButton) {
- m_selectionManager->clearSelection();
-
const QRectF headerBounds = m_view->headerBoundaries();
if (headerBounds.contains(event->pos())) {
emit headerContextMenuRequested(event->screenPos());
KItemListRubberBand* rubberBand = m_view->rubberBand();
if (rubberBand->isActive()) {
QPointF endPos = transform.map(event->pos());
+
+ // Update the current item.
+ const int newCurrent = m_view->itemAt(endPos);
+ if (newCurrent >= 0) {
+ // It's expected that the new current index is also the new anchor (bug 163451).
+ m_selectionManager->endAnchoredSelection();
+ m_selectionManager->setCurrentItem(newCurrent);
+ m_selectionManager->beginAnchoredSelection(newCurrent);
+ }
+
if (m_view->scrollOrientation() == Qt::Vertical) {
endPos.ry() += m_view->scrollOffset();
if (m_view->itemSize().width() < 0) {
return false;
}
+ if (m_pressedIndex >= 0) {
+ emit itemReleased(m_pressedIndex, event->button());
+ }
+
const bool isAboveSelectionToggle = m_view->isAboveSelectionToggle(m_pressedIndex, m_pressedMousePos);
if (isAboveSelectionToggle) {
m_selectionTogglePressed = false;
const bool shiftOrControlPressed = event->modifiers() & Qt::ShiftModifier ||
event->modifiers() & Qt::ControlModifier;
- bool clearSelection = !shiftOrControlPressed && event->button() != Qt::RightButton;
-
KItemListRubberBand* rubberBand = m_view->rubberBand();
if (rubberBand->isActive()) {
disconnect(rubberBand, SIGNAL(endPositionChanged(QPointF,QPointF)), this, SLOT(slotRubberBandChanged()));
rubberBand->setActive(false);
m_oldSelection.clear();
m_view->setAutoScroll(false);
-
- if (rubberBand->startPosition() != rubberBand->endPosition()) {
- clearSelection = false;
- }
}
const QPointF pos = transform.map(event->pos());
if (index >= 0 && index == m_pressedIndex) {
// The release event is done above the same item as the press event
- if (clearSelection) {
- // Clear the previous selection but reselect the current index
- m_selectionManager->setSelectedItems(QSet<int>() << index);
- }
-
if (event->button() & Qt::LeftButton) {
bool emitItemActivated = true;
if (m_view->isAboveExpansionToggle(index, pos)) {
} else if (shiftOrControlPressed) {
// The mouse click should only update the selection, not trigger the item
emitItemActivated = false;
- } else if (!KGlobalSettings::singleClick()) {
+ } else if (!m_singleClickActivation) {
emitItemActivated = false;
}
if (emitItemActivated) {
} else if (event->button() & Qt::MidButton) {
emit itemMiddleClicked(index);
}
- } else if (clearSelection) {
- m_selectionManager->clearSelection();
}
m_pressedMousePos = QPointF();
const QPointF pos = transform.map(event->pos());
const int index = m_view->itemAt(pos);
- bool emitItemActivated = !KGlobalSettings::singleClick() &&
+ bool emitItemActivated = !m_singleClickActivation &&
(event->button() & Qt::LeftButton) &&
index >= 0 && index < m_model->count();
if (emitItemActivated) {
}
KItemListWidget* oldHoveredWidget = hoveredWidget();
- KItemListWidget* newHoveredWidget = widgetForPos(event->pos());
+
+ const QPointF pos = transform.map(event->pos());
+ KItemListWidget* newHoveredWidget = widgetForPos(pos);
+
if (oldHoveredWidget != newHoveredWidget) {
+ m_autoActivationTimer->stop();
+
if (oldHoveredWidget) {
oldHoveredWidget->setHovered(false);
emit itemUnhovered(oldHoveredWidget->index());
newHoveredWidget->setHovered(true);
}
emit itemHovered(index);
+
+ if (m_autoActivationTimer->interval() >= 0) {
+ m_autoActivationTimer->setProperty("index", index);
+ m_autoActivationTimer->start();
+ }
}
}
return false;
}
+ m_autoActivationTimer->stop();
+
const QPointF pos = transform.map(event->pos());
const int index = m_view->itemAt(pos);
emit itemDropEvent(index, event);
}
KItemListWidget* oldHoveredWidget = hoveredWidget();
- KItemListWidget* newHoveredWidget = widgetForPos(event->pos());
+ const QPointF pos = transform.map(event->pos());
+ KItemListWidget* newHoveredWidget = widgetForPos(pos);
+
if (oldHoveredWidget != newHoveredWidget) {
if (oldHoveredWidget) {
oldHoveredWidget->setHovered(false);
const QPixmap pixmap = m_view->createDragPixmap(selectedItems);
drag->setPixmap(pixmap);
- drag->exec(Qt::MoveAction | Qt::CopyAction | Qt::LinkAction, Qt::IgnoreAction);
+ drag->exec(Qt::CopyAction);
}
KItemListWidget* KItemListController::hoveredWidget() const
return 0;
}
+void KItemListController::updateKeyboardAnchor()
+{
+ const bool validAnchor = m_keyboardAnchorIndex >= 0 &&
+ m_keyboardAnchorIndex < m_model->count() &&
+ keyboardAnchorPos(m_keyboardAnchorIndex) == m_keyboardAnchorPos;
+ if (!validAnchor) {
+ const int index = m_selectionManager->currentItem();
+ m_keyboardAnchorIndex = index;
+ m_keyboardAnchorPos = keyboardAnchorPos(index);
+ }
+}
+
+int KItemListController::nextRowIndex() const
+{
+ const int currentIndex = m_selectionManager->currentItem();
+ if (m_keyboardAnchorIndex < 0) {
+ return currentIndex;
+ }
+
+ const int maxIndex = m_model->count() - 1;
+ if (currentIndex == maxIndex) {
+ return currentIndex;
+ }
+
+ // Calculate the index of the last column inside the row of the current index
+ int lastColumnIndex = currentIndex;
+ while (keyboardAnchorPos(lastColumnIndex + 1) > keyboardAnchorPos(lastColumnIndex)) {
+ ++lastColumnIndex;
+ if (lastColumnIndex >= maxIndex) {
+ return currentIndex;
+ }
+ }
+
+ // Based on the last column index go to the next row and calculate the nearest index
+ // that is below the current index
+ int nextRowIndex = lastColumnIndex + 1;
+ int searchIndex = nextRowIndex;
+ qreal minDiff = qAbs(m_keyboardAnchorPos - keyboardAnchorPos(nextRowIndex));
+ while (searchIndex < maxIndex && keyboardAnchorPos(searchIndex + 1) > keyboardAnchorPos(searchIndex)) {
+ ++searchIndex;
+ const qreal searchDiff = qAbs(m_keyboardAnchorPos - keyboardAnchorPos(searchIndex));
+ if (searchDiff < minDiff) {
+ minDiff = searchDiff;
+ nextRowIndex = searchIndex;
+ }
+ }
+
+ return nextRowIndex;
+}
+
+int KItemListController::previousRowIndex() const
+{
+ const int currentIndex = m_selectionManager->currentItem();
+ if (m_keyboardAnchorIndex < 0 || currentIndex == 0) {
+ return currentIndex;
+ }
+
+ // Calculate the index of the first column inside the row of the current index
+ int firstColumnIndex = currentIndex;
+ while (keyboardAnchorPos(firstColumnIndex - 1) < keyboardAnchorPos(firstColumnIndex)) {
+ --firstColumnIndex;
+ if (firstColumnIndex <= 0) {
+ return currentIndex;
+ }
+ }
+
+ // Based on the first column index go to the previous row and calculate the nearest index
+ // that is above the current index
+ int previousRowIndex = firstColumnIndex - 1;
+ int searchIndex = previousRowIndex;
+ qreal minDiff = qAbs(m_keyboardAnchorPos - keyboardAnchorPos(previousRowIndex));
+ while (searchIndex > 0 && keyboardAnchorPos(searchIndex - 1) < keyboardAnchorPos(searchIndex)) {
+ --searchIndex;
+ const qreal searchDiff = qAbs(m_keyboardAnchorPos - keyboardAnchorPos(searchIndex));
+ if (searchDiff < minDiff) {
+ minDiff = searchDiff;
+ previousRowIndex = searchIndex;
+ }
+ }
+
+ return previousRowIndex;
+}
+
+qreal KItemListController::keyboardAnchorPos(int index) const
+{
+ const QRectF itemRect = m_view->itemRect(index);
+ if (!itemRect.isEmpty()) {
+ return (m_view->scrollOrientation() == Qt::Vertical) ? itemRect.x() : itemRect.y();
+ }
+
+ return 0;
+}
+
#include "kitemlistcontroller.moc"
projects / dolphin.git / blobdiff