diff --git a/src/kitemviews/kitemlistcontroller.cpp b/src/kitemviews/kitemlistcontroller.cpp index 6fb6a5132..4bfd5b4cb 100644 --- a/src/kitemviews/kitemlistcontroller.cpp +++ b/src/kitemviews/kitemlistcontroller.cpp @@ -1,1346 +1,1345 @@ /*************************************************************************** * Copyright (C) 2011 by Peter Penz * * Copyright (C) 2012 by Frank Reininghaus * * * * 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 * ***************************************************************************/ #include "kitemlistcontroller.h" #include "kitemlistselectionmanager.h" #include "kitemlistview.h" #include "private/kitemlistkeyboardsearchmanager.h" #include "private/kitemlistrubberband.h" #include "views/draganddrophelper.h" #include #include #include #include #include #include #include #include KItemListController::KItemListController(KItemModelBase* model, KItemListView* view, QObject* parent) : QObject(parent), m_singleClickActivationEnforced(false), m_selectionTogglePressed(false), m_clearSelectionIfItemsAreNotDragged(false), m_selectionBehavior(NoSelection), m_autoActivationBehavior(ActivationAndExpansion), m_mouseDoubleClickAction(ActivateItemOnly), m_model(nullptr), m_view(nullptr), m_selectionManager(new KItemListSelectionManager(this)), m_keyboardManager(new KItemListKeyboardSearchManager(this)), m_pressedIndex(-1), m_pressedMousePos(), m_autoActivationTimer(nullptr), m_oldSelection(), m_keyboardAnchorIndex(-1), m_keyboardAnchorPos(0) { connect(m_keyboardManager, &KItemListKeyboardSearchManager::changeCurrentItem, this, &KItemListController::slotChangeCurrentItem); connect(m_selectionManager, &KItemListSelectionManager::currentChanged, m_keyboardManager, &KItemListKeyboardSearchManager::slotCurrentChanged); m_autoActivationTimer = new QTimer(this); m_autoActivationTimer->setSingleShot(true); m_autoActivationTimer->setInterval(-1); connect(m_autoActivationTimer, &QTimer::timeout, this, &KItemListController::slotAutoActivationTimeout); setModel(model); setView(view); } KItemListController::~KItemListController() { setView(nullptr); Q_ASSERT(!m_view); setModel(nullptr); Q_ASSERT(!m_model); } void KItemListController::setModel(KItemModelBase* model) { if (m_model == model) { return; } KItemModelBase* oldModel = m_model; if (oldModel) { oldModel->deleteLater(); } m_model = model; if (m_model) { m_model->setParent(this); } if (m_view) { m_view->setModel(m_model); } m_selectionManager->setModel(m_model); emit modelChanged(m_model, oldModel); } KItemModelBase* KItemListController::model() const { return m_model; } KItemListSelectionManager* KItemListController::selectionManager() const { return m_selectionManager; } void KItemListController::setView(KItemListView* view) { if (m_view == view) { return; } KItemListView* oldView = m_view; if (oldView) { disconnect(oldView, &KItemListView::scrollOffsetChanged, this, &KItemListController::slotViewScrollOffsetChanged); oldView->deleteLater(); } m_view = view; if (m_view) { m_view->setParent(this); m_view->setController(this); m_view->setModel(m_model); connect(m_view, &KItemListView::scrollOffsetChanged, this, &KItemListController::slotViewScrollOffsetChanged); updateExtendedSelectionRegion(); } emit viewChanged(m_view, oldView); } KItemListView* KItemListController::view() const { return m_view; } void KItemListController::setSelectionBehavior(SelectionBehavior behavior) { m_selectionBehavior = behavior; updateExtendedSelectionRegion(); } KItemListController::SelectionBehavior KItemListController::selectionBehavior() const { return m_selectionBehavior; } void KItemListController::setAutoActivationBehavior(AutoActivationBehavior behavior) { m_autoActivationBehavior = behavior; } KItemListController::AutoActivationBehavior KItemListController::autoActivationBehavior() const { return m_autoActivationBehavior; } void KItemListController::setMouseDoubleClickAction(MouseDoubleClickAction action) { m_mouseDoubleClickAction = action; } KItemListController::MouseDoubleClickAction KItemListController::mouseDoubleClickAction() const { return m_mouseDoubleClickAction; } int KItemListController::indexCloseToMousePressedPosition() const { QHashIterator it(m_view->m_visibleGroups); while (it.hasNext()) { it.next(); KItemListGroupHeader *groupHeader = it.value(); const QPointF mappedToGroup = groupHeader->mapFromItem(nullptr, m_pressedMousePos); if (groupHeader->contains(mappedToGroup)) { return it.key()->index(); } } return -1; } void KItemListController::setAutoActivationDelay(int delay) { m_autoActivationTimer->setInterval(delay); } int KItemListController::autoActivationDelay() const { return m_autoActivationTimer->interval(); } void KItemListController::setSingleClickActivationEnforced(bool singleClick) { m_singleClickActivationEnforced = singleClick; } bool KItemListController::singleClickActivationEnforced() const { return m_singleClickActivationEnforced; } bool KItemListController::keyPressEvent(QKeyEvent* event) { int index = m_selectionManager->currentItem(); int key = event->key(); // Handle the expanding/collapsing of items if (m_view->supportsItemExpanding() && m_model->isExpandable(index)) { if (key == Qt::Key_Right) { if (m_model->setExpanded(index, true)) { return true; } } else if (key == Qt::Key_Left) { if (m_model->setExpanded(index, false)) { return true; } } } const bool shiftPressed = event->modifiers() & Qt::ShiftModifier; const bool controlPressed = event->modifiers() & Qt::ControlModifier; const bool shiftOrControlPressed = shiftPressed || controlPressed; const bool navigationPressed = key == Qt::Key_Home || key == Qt::Key_End || - key == Qt::Key_Up || key == Qt::Key_Down || + key == Qt::Key_PageUp || key == Qt::Key_PageDown || + key == Qt::Key_Up || key == Qt::Key_Down || key == Qt::Key_Left || key == Qt::Key_Right; const int itemCount = m_model->count(); // For horizontal scroll orientation, transform // the arrow keys to simplify the event handling. if (m_view->scrollOrientation() == Qt::Horizontal) { switch (key) { case Qt::Key_Up: key = Qt::Key_Left; break; case Qt::Key_Down: key = Qt::Key_Right; break; case Qt::Key_Left: key = Qt::Key_Up; break; case Qt::Key_Right: key = Qt::Key_Down; break; default: break; } } const bool selectSingleItem = m_selectionBehavior != NoSelection && itemCount == 1 && navigationPressed; if (selectSingleItem) { const int current = m_selectionManager->currentItem(); m_selectionManager->setSelected(current); return true; } switch (key) { case Qt::Key_Home: index = 0; m_keyboardAnchorIndex = index; m_keyboardAnchorPos = keyboardAnchorPos(index); break; case Qt::Key_End: index = itemCount - 1; m_keyboardAnchorIndex = index; m_keyboardAnchorPos = keyboardAnchorPos(index); break; case Qt::Key_Left: if (index > 0) { const int expandedParentsCount = m_model->expandedParentsCount(index); if (expandedParentsCount == 0) { --index; } else { // Go to the parent of the current item. do { --index; } while (index > 0 && m_model->expandedParentsCount(index) == expandedParentsCount); } m_keyboardAnchorIndex = index; m_keyboardAnchorPos = keyboardAnchorPos(index); } break; case Qt::Key_Right: if (index < itemCount - 1) { ++index; m_keyboardAnchorIndex = index; m_keyboardAnchorPos = keyboardAnchorPos(index); } break; case Qt::Key_Up: updateKeyboardAnchor(); index = previousRowIndex(index); break; case Qt::Key_Down: updateKeyboardAnchor(); index = nextRowIndex(index); break; case Qt::Key_PageUp: if (m_view->scrollOrientation() == Qt::Horizontal) { // The new current index should correspond to the first item in the current column. int newIndex = qMax(index - 1, 0); while (newIndex != index && m_view->itemRect(newIndex).topLeft().y() < m_view->itemRect(index).topLeft().y()) { index = newIndex; newIndex = qMax(index - 1, 0); } m_keyboardAnchorIndex = index; m_keyboardAnchorPos = keyboardAnchorPos(index); } else { const qreal currentItemBottom = m_view->itemRect(index).bottomLeft().y(); const qreal height = m_view->geometry().height(); // The new current item should be the first item in the current // column whose itemRect's top coordinate is larger than targetY. const qreal targetY = currentItemBottom - height; updateKeyboardAnchor(); int newIndex = previousRowIndex(index); do { index = newIndex; updateKeyboardAnchor(); newIndex = previousRowIndex(index); } while (m_view->itemRect(newIndex).topLeft().y() > targetY && newIndex != index); } break; case Qt::Key_PageDown: if (m_view->scrollOrientation() == Qt::Horizontal) { // The new current index should correspond to the last item in the current column. int newIndex = qMin(index + 1, m_model->count() - 1); while (newIndex != index && m_view->itemRect(newIndex).topLeft().y() > m_view->itemRect(index).topLeft().y()) { index = newIndex; newIndex = qMin(index + 1, m_model->count() - 1); } m_keyboardAnchorIndex = index; m_keyboardAnchorPos = keyboardAnchorPos(index); } else { const qreal currentItemTop = m_view->itemRect(index).topLeft().y(); const qreal height = m_view->geometry().height(); // The new current item should be the last item in the current // column whose itemRect's bottom coordinate is smaller than targetY. const qreal targetY = currentItemTop + height; updateKeyboardAnchor(); int newIndex = nextRowIndex(index); do { index = newIndex; updateKeyboardAnchor(); newIndex = nextRowIndex(index); } while (m_view->itemRect(newIndex).bottomLeft().y() < targetY && newIndex != index); } break; case Qt::Key_Enter: case Qt::Key_Return: { const KItemSet selectedItems = m_selectionManager->selectedItems(); if (selectedItems.count() >= 2) { emit itemsActivated(selectedItems); } else if (selectedItems.count() == 1) { emit itemActivated(selectedItems.first()); } else { emit itemActivated(index); } 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 KItemSet selectedItems = m_selectionManager->selectedItems(); int index = -1; if (selectedItems.count() >= 2) { const int currentItemIndex = m_selectionManager->currentItem(); index = selectedItems.contains(currentItemIndex) ? currentItemIndex : selectedItems.first(); } else if (selectedItems.count() == 1) { index = selectedItems.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; } case Qt::Key_Escape: if (m_selectionBehavior != SingleSelection) { m_selectionManager->clearSelection(); } m_keyboardManager->cancelSearch(); emit escapePressed(); break; case Qt::Key_Space: if (m_selectionBehavior == MultiSelection) { if (controlPressed) { // Toggle the selection state of the current item. m_selectionManager->endAnchoredSelection(); m_selectionManager->setSelected(index, 1, KItemListSelectionManager::Toggle); m_selectionManager->beginAnchoredSelection(index); break; } else { // Select the current item if it is not selected yet. const int current = m_selectionManager->currentItem(); if (!m_selectionManager->isSelected(current)) { m_selectionManager->setSelected(current); break; } } } Q_FALLTHROUGH(); // fall through to the default case and add the Space to the current search string. default: m_keyboardManager->addKeys(event->text()); // Make sure unconsumed events get propagated up the chain. #302329 event->ignore(); return false; } if (m_selectionManager->currentItem() != index) { switch (m_selectionBehavior) { case NoSelection: m_selectionManager->setCurrentItem(index); break; case SingleSelection: m_selectionManager->setCurrentItem(index); m_selectionManager->clearSelection(); m_selectionManager->setSelected(index, 1); break; case MultiSelection: if (controlPressed) { m_selectionManager->endAnchoredSelection(); } m_selectionManager->setCurrentItem(index); if (!shiftOrControlPressed) { m_selectionManager->clearSelection(); m_selectionManager->setSelected(index, 1); } if (!shiftPressed) { m_selectionManager->beginAnchoredSelection(index); } break; } } if (navigationPressed) { - if (index < m_view->firstVisibleIndex() || index > m_view->lastVisibleIndex()) { - m_view->scrollToItem(index); - } + m_view->scrollToItem(index); } return true; } void KItemListController::slotChangeCurrentItem(const QString& text, bool searchFromNextItem) { if (!m_model || m_model->count() == 0) { return; } const int currentIndex = m_selectionManager->currentItem(); int index; if (searchFromNextItem) { index = m_model->indexForKeyboardSearch(text, (currentIndex + 1) % m_model->count()); } else { index = m_model->indexForKeyboardSearch(text, currentIndex); } if (index >= 0) { m_selectionManager->setCurrentItem(index); if (m_selectionBehavior != NoSelection) { 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; } /* m_view->isUnderMouse() fixes a bug in the Folder-View-Panel and in the * Places-Panel. * * Bug: When you drag a file onto a Folder-View-Item or a Places-Item and * then move away before the auto-activation timeout triggers, than the * item still becomes activated/expanded. * * See Bug 293200 and 305783 */ if (m_model->supportsDropping(index) && m_view->isUnderMouse()) { if (m_view->supportsItemExpanding() && m_model->isExpandable(index)) { const bool expanded = m_model->isExpanded(index); m_model->setExpanded(index, !expanded); } else if (m_autoActivationBehavior != ExpansionOnly) { emit itemActivated(index); } } } bool KItemListController::inputMethodEvent(QInputMethodEvent* event) { Q_UNUSED(event); return false; } bool KItemListController::mousePressEvent(QGraphicsSceneMouseEvent* event, const QTransform& transform) { if (!m_view) { return false; } m_pressedMousePos = transform.map(event->pos()); m_pressedIndex = m_view->itemAt(m_pressedMousePos); emit mouseButtonPressed(m_pressedIndex, event->buttons()); if (event->buttons() & (Qt::BackButton | Qt::ForwardButton)) { // Do not select items when clicking the back/forward buttons, see // https://bugs.kde.org/show_bug.cgi?id=327412. return true; } if (m_view->isAboveExpansionToggle(m_pressedIndex, m_pressedMousePos)) { m_selectionManager->endAnchoredSelection(); m_selectionManager->setCurrentItem(m_pressedIndex); m_selectionManager->beginAnchoredSelection(m_pressedIndex); return true; } 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; // 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(); } else if (pressedItemAlreadySelected && !shiftOrControlPressed && (event->buttons() & Qt::LeftButton)) { // The user might want to start dragging multiple items, but if he clicks the item // in order to trigger it instead, the other selected items must be deselected. // However, we do not know yet what the user is going to do. // -> remember that the user pressed an item which had been selected already and // clear the selection in mouseReleaseEvent(), unless the items are dragged. m_clearSelectionIfItemsAreNotDragged = true; if (m_selectionManager->selectedItems().count() == 1 && m_view->isAboveText(m_pressedIndex, m_pressedMousePos)) { emit selectedItemTextPressed(m_pressedIndex); } } if (!shiftPressed) { // Finish the anchored selection before the current index is changed m_selectionManager->endAnchoredSelection(); } if (m_pressedIndex >= 0) { m_selectionManager->setCurrentItem(m_pressedIndex); switch (m_selectionBehavior) { case NoSelection: break; case SingleSelection: m_selectionManager->setSelected(m_pressedIndex); break; case MultiSelection: if (controlPressed && !shiftPressed) { m_selectionManager->setSelected(m_pressedIndex, 1, KItemListSelectionManager::Toggle); m_selectionManager->beginAnchoredSelection(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); m_selectionManager->beginAnchoredSelection(m_pressedIndex); } break; default: Q_ASSERT(false); break; } if (event->buttons() & Qt::RightButton) { emit itemContextMenuRequested(m_pressedIndex, event->screenPos()); } return true; } if (event->buttons() & Qt::RightButton) { const QRectF headerBounds = m_view->headerBoundaries(); if (headerBounds.contains(event->pos())) { emit headerContextMenuRequested(event->screenPos()); } else { emit viewContextMenuRequested(event->screenPos()); } return true; } if (m_selectionBehavior == MultiSelection) { QPointF startPos = m_pressedMousePos; if (m_view->scrollOrientation() == Qt::Vertical) { startPos.ry() += m_view->scrollOffset(); if (m_view->itemSize().width() < 0) { // Use a special rubberband for views that have only one column and // expand the rubberband to use the whole width of the view. startPos.setX(0); } } else { startPos.rx() += m_view->scrollOffset(); } m_oldSelection = m_selectionManager->selectedItems(); KItemListRubberBand* rubberBand = m_view->rubberBand(); rubberBand->setStartPosition(startPos); rubberBand->setEndPosition(startPos); rubberBand->setActive(true); connect(rubberBand, &KItemListRubberBand::endPositionChanged, this, &KItemListController::slotRubberBandChanged); m_view->setAutoScroll(true); } return false; } bool KItemListController::mouseMoveEvent(QGraphicsSceneMouseEvent* event, const QTransform& transform) { if (!m_view) { return false; } if (m_pressedIndex >= 0) { // Check whether a dragging should be started if (event->buttons() & Qt::LeftButton) { const QPointF pos = transform.map(event->pos()); if ((pos - m_pressedMousePos).manhattanLength() >= QApplication::startDragDistance()) { if (!m_selectionManager->isSelected(m_pressedIndex)) { // Always assure that the dragged item gets selected. Usually this is already // done on the mouse-press event, but when using the selection-toggle on a // selected item the dragged item is not selected yet. m_selectionManager->setSelected(m_pressedIndex, 1, KItemListSelectionManager::Toggle); } else { // A selected item has been clicked to drag all selected items // -> the selection should not be cleared when the mouse button is released. m_clearSelectionIfItemsAreNotDragged = false; } startDragging(); } } } else { 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) { // Use a special rubberband for views that have only one column and // expand the rubberband to use the whole width of the view. endPos.setX(m_view->size().width()); } } else { endPos.rx() += m_view->scrollOffset(); } rubberBand->setEndPosition(endPos); } } return false; } bool KItemListController::mouseReleaseEvent(QGraphicsSceneMouseEvent* event, const QTransform& transform) { if (!m_view) { return false; } emit mouseButtonReleased(m_pressedIndex, event->buttons()); const bool isAboveSelectionToggle = m_view->isAboveSelectionToggle(m_pressedIndex, m_pressedMousePos); if (isAboveSelectionToggle) { m_selectionTogglePressed = false; return true; } if (!isAboveSelectionToggle && m_selectionTogglePressed) { m_selectionManager->setSelected(m_pressedIndex, 1, KItemListSelectionManager::Toggle); m_selectionTogglePressed = false; return true; } const bool shiftOrControlPressed = event->modifiers() & Qt::ShiftModifier || event->modifiers() & Qt::ControlModifier; KItemListRubberBand* rubberBand = m_view->rubberBand(); if (rubberBand->isActive()) { disconnect(rubberBand, &KItemListRubberBand::endPositionChanged, this, &KItemListController::slotRubberBandChanged); rubberBand->setActive(false); m_oldSelection.clear(); m_view->setAutoScroll(false); } const QPointF pos = transform.map(event->pos()); const int index = m_view->itemAt(pos); if (index >= 0 && index == m_pressedIndex) { // The release event is done above the same item as the press event if (m_clearSelectionIfItemsAreNotDragged) { // A selected item has been clicked, but no drag operation has been started // -> clear the rest of the selection. m_selectionManager->clearSelection(); m_selectionManager->setSelected(m_pressedIndex, 1, KItemListSelectionManager::Select); m_selectionManager->beginAnchoredSelection(m_pressedIndex); } if (event->button() & Qt::LeftButton) { bool emitItemActivated = true; if (m_view->isAboveExpansionToggle(index, pos)) { const bool expanded = m_model->isExpanded(index); m_model->setExpanded(index, !expanded); emit itemExpansionToggleClicked(index); emitItemActivated = false; } else if (shiftOrControlPressed) { // The mouse click should only update the selection, not trigger the item emitItemActivated = false; } else if (!(m_view->style()->styleHint(QStyle::SH_ItemView_ActivateItemOnSingleClick) || m_singleClickActivationEnforced)) { emitItemActivated = false; } if (emitItemActivated) { emit itemActivated(index); } } else if (event->button() & Qt::MidButton) { emit itemMiddleClicked(index); } } m_pressedMousePos = QPointF(); m_pressedIndex = -1; m_clearSelectionIfItemsAreNotDragged = false; return false; } bool KItemListController::mouseDoubleClickEvent(QGraphicsSceneMouseEvent* event, const QTransform& transform) { const QPointF pos = transform.map(event->pos()); const int index = m_view->itemAt(pos); // Expand item if desired - See Bug 295573 if (m_mouseDoubleClickAction != ActivateItemOnly) { if (m_view && m_model && m_view->supportsItemExpanding() && m_model->isExpandable(index)) { const bool expanded = m_model->isExpanded(index); m_model->setExpanded(index, !expanded); } } if (event->button() & Qt::RightButton) { m_selectionManager->clearSelection(); if (index >= 0) { m_selectionManager->setSelected(index); emit itemContextMenuRequested(index, event->screenPos()); } else { const QRectF headerBounds = m_view->headerBoundaries(); if (headerBounds.contains(event->pos())) { emit headerContextMenuRequested(event->screenPos()); } else { emit viewContextMenuRequested(event->screenPos()); } } return true; } bool emitItemActivated = !(m_view->style()->styleHint(QStyle::SH_ItemView_ActivateItemOnSingleClick) || m_singleClickActivationEnforced) && (event->button() & Qt::LeftButton) && index >= 0 && index < m_model->count(); if (emitItemActivated) { emit itemActivated(index); } return false; } bool KItemListController::dragEnterEvent(QGraphicsSceneDragDropEvent* event, const QTransform& transform) { Q_UNUSED(event); Q_UNUSED(transform); DragAndDropHelper::clearUrlListMatchesUrlCache(); return false; } bool KItemListController::dragLeaveEvent(QGraphicsSceneDragDropEvent* event, const QTransform& transform) { Q_UNUSED(event); Q_UNUSED(transform); m_autoActivationTimer->stop(); m_view->setAutoScroll(false); m_view->hideDropIndicator(); KItemListWidget* widget = hoveredWidget(); if (widget) { widget->setHovered(false); emit itemUnhovered(widget->index()); } return false; } bool KItemListController::dragMoveEvent(QGraphicsSceneDragDropEvent* event, const QTransform& transform) { if (!m_model || !m_view) { return false; } QUrl hoveredDir = m_model->directory(); KItemListWidget* oldHoveredWidget = hoveredWidget(); 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()); } } if (newHoveredWidget) { bool droppingBetweenItems = false; if (m_model->sortRole().isEmpty()) { // The model supports inserting items between other items. droppingBetweenItems = (m_view->showDropIndicator(pos) >= 0); } const int index = newHoveredWidget->index(); if (m_model->isDir(index)) { hoveredDir = m_model->url(index); } if (!droppingBetweenItems) { if (m_model->supportsDropping(index)) { // Something has been dragged on an item. m_view->hideDropIndicator(); if (!newHoveredWidget->isHovered()) { newHoveredWidget->setHovered(true); emit itemHovered(index); } if (!m_autoActivationTimer->isActive() && m_autoActivationTimer->interval() >= 0) { m_autoActivationTimer->setProperty("index", index); m_autoActivationTimer->start(); } } } else { m_autoActivationTimer->stop(); if (newHoveredWidget && newHoveredWidget->isHovered()) { newHoveredWidget->setHovered(false); emit itemUnhovered(index); } } } else { m_view->hideDropIndicator(); } event->setAccepted(!DragAndDropHelper::urlListMatchesUrl(event->mimeData()->urls(), hoveredDir)); return false; } bool KItemListController::dropEvent(QGraphicsSceneDragDropEvent* event, const QTransform& transform) { if (!m_view) { return false; } m_autoActivationTimer->stop(); m_view->setAutoScroll(false); const QPointF pos = transform.map(event->pos()); int dropAboveIndex = -1; if (m_model->sortRole().isEmpty()) { // The model supports inserting of items between other items. dropAboveIndex = m_view->showDropIndicator(pos); } if (dropAboveIndex >= 0) { // Something has been dropped between two items. m_view->hideDropIndicator(); emit aboveItemDropEvent(dropAboveIndex, event); } else if (!event->mimeData()->hasFormat(m_model->blacklistItemDropEventMimeType())) { // Something has been dropped on an item or on an empty part of the view. emit itemDropEvent(m_view->itemAt(pos), event); } QAccessibleEvent accessibilityEvent(view(), QAccessible::DragDropEnd); QAccessible::updateAccessibility(&accessibilityEvent); return true; } bool KItemListController::hoverEnterEvent(QGraphicsSceneHoverEvent* event, const QTransform& transform) { Q_UNUSED(event); Q_UNUSED(transform); return false; } bool KItemListController::hoverMoveEvent(QGraphicsSceneHoverEvent* event, const QTransform& transform) { Q_UNUSED(transform); if (!m_model || !m_view) { return false; } KItemListWidget* oldHoveredWidget = hoveredWidget(); const QPointF pos = transform.map(event->pos()); KItemListWidget* newHoveredWidget = widgetForPos(pos); if (oldHoveredWidget != newHoveredWidget) { if (oldHoveredWidget) { oldHoveredWidget->setHovered(false); emit itemUnhovered(oldHoveredWidget->index()); } if (newHoveredWidget) { newHoveredWidget->setHovered(true); const QPointF mappedPos = newHoveredWidget->mapFromItem(m_view, pos); newHoveredWidget->setHoverPosition(mappedPos); emit itemHovered(newHoveredWidget->index()); } } else if (oldHoveredWidget) { const QPointF mappedPos = oldHoveredWidget->mapFromItem(m_view, pos); oldHoveredWidget->setHoverPosition(mappedPos); } return false; } bool KItemListController::hoverLeaveEvent(QGraphicsSceneHoverEvent* event, const QTransform& transform) { Q_UNUSED(event); Q_UNUSED(transform); if (!m_model || !m_view) { return false; } foreach (KItemListWidget* widget, m_view->visibleItemListWidgets()) { if (widget->isHovered()) { widget->setHovered(false); emit itemUnhovered(widget->index()); } } return false; } bool KItemListController::wheelEvent(QGraphicsSceneWheelEvent* event, const QTransform& transform) { Q_UNUSED(event); Q_UNUSED(transform); return false; } bool KItemListController::resizeEvent(QGraphicsSceneResizeEvent* event, const QTransform& transform) { Q_UNUSED(event); Q_UNUSED(transform); return false; } bool KItemListController::processEvent(QEvent* event, const QTransform& transform) { if (!event) { return false; } switch (event->type()) { case QEvent::KeyPress: return keyPressEvent(static_cast(event)); case QEvent::InputMethod: return inputMethodEvent(static_cast(event)); case QEvent::GraphicsSceneMousePress: return mousePressEvent(static_cast(event), QTransform()); case QEvent::GraphicsSceneMouseMove: return mouseMoveEvent(static_cast(event), QTransform()); case QEvent::GraphicsSceneMouseRelease: return mouseReleaseEvent(static_cast(event), QTransform()); case QEvent::GraphicsSceneMouseDoubleClick: return mouseDoubleClickEvent(static_cast(event), QTransform()); case QEvent::GraphicsSceneWheel: return wheelEvent(static_cast(event), QTransform()); case QEvent::GraphicsSceneDragEnter: return dragEnterEvent(static_cast(event), QTransform()); case QEvent::GraphicsSceneDragLeave: return dragLeaveEvent(static_cast(event), QTransform()); case QEvent::GraphicsSceneDragMove: return dragMoveEvent(static_cast(event), QTransform()); case QEvent::GraphicsSceneDrop: return dropEvent(static_cast(event), QTransform()); case QEvent::GraphicsSceneHoverEnter: return hoverEnterEvent(static_cast(event), QTransform()); case QEvent::GraphicsSceneHoverMove: return hoverMoveEvent(static_cast(event), QTransform()); case QEvent::GraphicsSceneHoverLeave: return hoverLeaveEvent(static_cast(event), QTransform()); case QEvent::GraphicsSceneResize: return resizeEvent(static_cast(event), transform); default: break; } return false; } void KItemListController::slotViewScrollOffsetChanged(qreal current, qreal previous) { if (!m_view) { return; } KItemListRubberBand* rubberBand = m_view->rubberBand(); if (rubberBand->isActive()) { const qreal diff = current - previous; // TODO: Ideally just QCursor::pos() should be used as // new end-position but it seems there is no easy way // to have something like QWidget::mapFromGlobal() for QGraphicsWidget // (... or I just missed an easy way to do the mapping) QPointF endPos = rubberBand->endPosition(); if (m_view->scrollOrientation() == Qt::Vertical) { endPos.ry() += diff; } else { endPos.rx() += diff; } rubberBand->setEndPosition(endPos); } } void KItemListController::slotRubberBandChanged() { if (!m_view || !m_model || m_model->count() <= 0) { return; } const KItemListRubberBand* rubberBand = m_view->rubberBand(); const QPointF startPos = rubberBand->startPosition(); const QPointF endPos = rubberBand->endPosition(); QRectF rubberBandRect = QRectF(startPos, endPos).normalized(); const bool scrollVertical = (m_view->scrollOrientation() == Qt::Vertical); if (scrollVertical) { rubberBandRect.translate(0, -m_view->scrollOffset()); } else { rubberBandRect.translate(-m_view->scrollOffset(), 0); } if (!m_oldSelection.isEmpty()) { // Clear the old selection that was available before the rubberband has // been activated in case if no Shift- or Control-key are pressed const bool shiftOrControlPressed = QApplication::keyboardModifiers() & Qt::ShiftModifier || QApplication::keyboardModifiers() & Qt::ControlModifier; if (!shiftOrControlPressed) { m_oldSelection.clear(); } } KItemSet selectedItems; // Select all visible items that intersect with the rubberband foreach (const KItemListWidget* widget, m_view->visibleItemListWidgets()) { const int index = widget->index(); const QRectF widgetRect = m_view->itemRect(index); if (widgetRect.intersects(rubberBandRect)) { const QRectF iconRect = widget->iconRect().translated(widgetRect.topLeft()); const QRectF textRect = widget->textRect().translated(widgetRect.topLeft()); if (iconRect.intersects(rubberBandRect) || textRect.intersects(rubberBandRect)) { selectedItems.insert(index); } } } // Select all invisible items that intersect with the rubberband. Instead of // iterating all items only the area which might be touched by the rubberband // will be checked. const bool increaseIndex = scrollVertical ? startPos.y() > endPos.y(): startPos.x() > endPos.x(); int index = increaseIndex ? m_view->lastVisibleIndex() + 1 : m_view->firstVisibleIndex() - 1; bool selectionFinished = false; do { const QRectF widgetRect = m_view->itemRect(index); if (widgetRect.intersects(rubberBandRect)) { selectedItems.insert(index); } if (increaseIndex) { ++index; selectionFinished = (index >= m_model->count()) || ( scrollVertical && widgetRect.top() > rubberBandRect.bottom()) || (!scrollVertical && widgetRect.left() > rubberBandRect.right()); } else { --index; selectionFinished = (index < 0) || ( scrollVertical && widgetRect.bottom() < rubberBandRect.top()) || (!scrollVertical && widgetRect.right() < rubberBandRect.left()); } } while (!selectionFinished); if (QApplication::keyboardModifiers() & Qt::ControlModifier) { // If Control is pressed, the selection state of all items in the rubberband is toggled. // Therefore, the new selection contains: // 1. All previously selected items which are not inside the rubberband, and // 2. all items inside the rubberband which have not been selected previously. m_selectionManager->setSelectedItems(m_oldSelection ^ selectedItems); } else { m_selectionManager->setSelectedItems(selectedItems + m_oldSelection); } } void KItemListController::startDragging() { if (!m_view || !m_model) { return; } const KItemSet selectedItems = m_selectionManager->selectedItems(); if (selectedItems.isEmpty()) { return; } QMimeData* data = m_model->createMimeData(selectedItems); if (!data) { return; } // The created drag object will be owned and deleted // by QApplication::activeWindow(). QDrag* drag = new QDrag(QApplication::activeWindow()); drag->setMimeData(data); const QPixmap pixmap = m_view->createDragPixmap(selectedItems); drag->setPixmap(pixmap); const QPoint hotSpot((pixmap.width() / pixmap.devicePixelRatio()) / 2, 0); drag->setHotSpot(hotSpot); drag->exec(Qt::MoveAction | Qt::CopyAction | Qt::LinkAction, Qt::CopyAction); QAccessibleEvent accessibilityEvent(view(), QAccessible::DragDropStart); QAccessible::updateAccessibility(&accessibilityEvent); } KItemListWidget* KItemListController::hoveredWidget() const { Q_ASSERT(m_view); foreach (KItemListWidget* widget, m_view->visibleItemListWidgets()) { if (widget->isHovered()) { return widget; } } return nullptr; } KItemListWidget* KItemListController::widgetForPos(const QPointF& pos) const { Q_ASSERT(m_view); foreach (KItemListWidget* widget, m_view->visibleItemListWidgets()) { const QPointF mappedPos = widget->mapFromItem(m_view, pos); const bool hovered = widget->contains(mappedPos) && !widget->expansionToggleRect().contains(mappedPos); if (hovered) { return widget; } } return nullptr; } 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(int index) const { if (m_keyboardAnchorIndex < 0) { return index; } const int maxIndex = m_model->count() - 1; if (index == maxIndex) { return index; } // Calculate the index of the last column inside the row of the current index int lastColumnIndex = index; while (keyboardAnchorPos(lastColumnIndex + 1) > keyboardAnchorPos(lastColumnIndex)) { ++lastColumnIndex; if (lastColumnIndex >= maxIndex) { return index; } } // 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(int index) const { if (m_keyboardAnchorIndex < 0 || index == 0) { return index; } // Calculate the index of the first column inside the row of the current index int firstColumnIndex = index; while (keyboardAnchorPos(firstColumnIndex - 1) < keyboardAnchorPos(firstColumnIndex)) { --firstColumnIndex; if (firstColumnIndex <= 0) { return index; } } // 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; } void KItemListController::updateExtendedSelectionRegion() { if (m_view) { const bool extend = (m_selectionBehavior != MultiSelection); KItemListStyleOption option = m_view->styleOption(); if (option.extendedSelectionRegion != extend) { option.extendedSelectionRegion = extend; m_view->setStyleOption(option); } } }