Improve autoscrolling

[dolphin.git] / src / kitemviews / kitemlistcontroller.cpp

diff --git a/src/kitemviews/kitemlistcontroller.cpp b/src/kitemviews/kitemlistcontroller.cpp
index c0875ce3977a475df6fd8f08c4e5b5d2ea13b144..025249a34a4df329c9590a6b9bbcc83838c103ae 100644 (file)
--- a/src/kitemviews/kitemlistcontroller.cpp
+++ b/src/kitemviews/kitemlistcontroller.cpp
@@ -25,6 +25,7 @@
 #include "kitemlistview.h"
 #include "kitemlistrubberband_p.h"
 #include "kitemlistselectionmanager.h"
+#include "kitemlistkeyboardsearchmanager_p.h"
 
 #include <QApplication>
 #include <QDrag>
@@ -37,15 +38,17 @@
 
 KItemListController::KItemListController(QObject* parent) :
     QObject(parent),
-    m_dragging(false),
     m_selectionBehavior(NoSelection),
     m_model(0),
     m_view(0),
     m_selectionManager(new KItemListSelectionManager(this)),
+    m_keyboardManager(new KItemListKeyboardSearchManager(this)),
     m_pressedIndex(-1),
     m_pressedMousePos(),
     m_oldSelection()
 {
+    connect(m_keyboardManager, SIGNAL(changeCurrentItem(QString,bool)),
+            this, SLOT(slotChangeCurrentItem(QString,bool)));
 }
 
 KItemListController::~KItemListController()
@@ -197,15 +200,22 @@ bool KItemListController::keyPressEvent(QKeyEvent* event)
         }
         break;
 
+    case Qt::Key_Enter:
+    case Qt::Key_Return:
+        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;
         }
 
     default:
-        break;
+        m_keyboardManager->addKeys(event->text());
+        return false;
     }
 
     if (m_selectionManager->currentItem() != index) {
@@ -227,6 +237,27 @@ bool KItemListController::keyPressEvent(QKeyEvent* event)
     return true;
 }
 
+void KItemListController::slotChangeCurrentItem(const QString& text, bool searchFromNextItem)
+{
+    if (!m_model) {
+        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);
+        m_selectionManager->clearSelection();
+        m_selectionManager->setSelected(index, 1);
+        m_selectionManager->beginAnchoredSelection(index);
+    }
+}
+
 bool KItemListController::inputMethodEvent(QInputMethodEvent* event)
 {
     Q_UNUSED(event);
@@ -239,7 +270,6 @@ bool KItemListController::mousePressEvent(QGraphicsSceneMouseEvent* event, const
         return false;
     }
 
-    m_dragging = false;
     m_pressedMousePos = transform.map(event->pos());
     m_pressedIndex = m_view->itemAt(m_pressedMousePos);
 
@@ -275,6 +305,11 @@ bool KItemListController::mousePressEvent(QGraphicsSceneMouseEvent* event, const
             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);
@@ -289,6 +324,10 @@ bool KItemListController::mousePressEvent(QGraphicsSceneMouseEvent* event, const
 
         return true;
     } else {
+        if (event->buttons() & Qt::RightButton) {
+            m_selectionManager->clearSelection();
+        }
+
         KItemListRubberBand* rubberBand = m_view->rubberBand();
         QPointF startPos = m_pressedMousePos;
         if (m_view->scrollOrientation() == Qt::Vertical) {
@@ -321,13 +360,13 @@ bool KItemListController::mouseMoveEvent(QGraphicsSceneMouseEvent* event, const
 
     if (m_pressedIndex >= 0) {
         // Check whether a dragging should be started
-        if (!m_dragging && (event->buttons() & Qt::LeftButton)) {
+        if (event->buttons() & Qt::LeftButton) {
             const QPointF pos = transform.map(event->pos());
             const qreal minDragDiff = 4;
             const bool hasMinDragDiff = qAbs(pos.x() - m_pressedMousePos.x()) >= minDragDiff ||
                                         qAbs(pos.y() - m_pressedMousePos.y()) >= minDragDiff;
-            if (hasMinDragDiff && startDragging()) {
-                m_dragging = true;
+            if (hasMinDragDiff) {
+                startDragging();
             }
         }
     } else {
@@ -360,7 +399,7 @@ bool KItemListController::mouseReleaseEvent(QGraphicsSceneMouseEvent* event, con
     const bool shiftOrControlPressed = event->modifiers() & Qt::ShiftModifier ||
                                        event->modifiers() & Qt::ControlModifier;
 
-    bool clearSelection = !shiftOrControlPressed && !m_dragging && !(event->button() == Qt::RightButton);
+    bool clearSelection = !shiftOrControlPressed && event->button() != Qt::RightButton;
 
     KItemListRubberBand* rubberBand = m_view->rubberBand();
     if (rubberBand->isActive()) {
@@ -385,24 +424,29 @@ bool KItemListController::mouseReleaseEvent(QGraphicsSceneMouseEvent* event, con
             m_selectionManager->setSelectedItems(QSet<int>() << index);
         }
 
-        bool emitItemClicked = true;
         if (event->button() & Qt::LeftButton) {
+            bool emitItemActivated = true;
             if (m_view->isAboveExpansionToggle(index, pos)) {
                 emit itemExpansionToggleClicked(index);
-                emitItemClicked = false;
-            } else if (shiftOrControlPressed || !KGlobalSettings::singleClick()) {
-                emitItemClicked = false;
+                emitItemActivated = false;
+            } else if (shiftOrControlPressed) {
+                // The mouse click should only update the selection, not trigger the item
+                emitItemActivated = false;
+            } else if (!KGlobalSettings::singleClick()) {
+                emitItemActivated = false;
             }
-        }
-
-        if (emitItemClicked) {
-            emit itemClicked(index, event->button());
+            if (emitItemActivated) {
+                emit itemActivated(index);
+            }
+        } else if (event->button() & Qt::MidButton) {
+            emit itemMiddleClicked(index);
+        } else if (event->button() & Qt::RightButton) {
+            emit contextMenuRequested(index, QPointF(event->pos()));
         }
     } else if (clearSelection) {
         m_selectionManager->clearSelection();
     }
 
-    m_dragging = false;
     m_pressedMousePos = QPointF();
     m_pressedIndex = -1;
     return false;
@@ -413,11 +457,11 @@ bool KItemListController::mouseDoubleClickEvent(QGraphicsSceneMouseEvent* event,
     const QPointF pos = transform.map(event->pos());
     const int index = m_view->itemAt(pos);
 
-    bool emitItemClicked = !KGlobalSettings::singleClick() &&
+    bool emitItemActivated = !KGlobalSettings::singleClick() &&
                            (event->button() & Qt::LeftButton) &&
                            index >= 0 && index < m_model->count();
-    if (emitItemClicked) {
-        emit itemClicked(index, event->button());
+    if (emitItemActivated) {
+        emit itemActivated(index);
     }
     return false;
 }
@@ -447,8 +491,6 @@ bool KItemListController::dropEvent(QGraphicsSceneDragDropEvent* event, const QT
 {
     Q_UNUSED(event);
     Q_UNUSED(transform);
-
-    m_dragging = false;
     return false;
 }
 
@@ -690,16 +732,16 @@ void KItemListController::slotRubberBandChanged()
     }
 }
 
-bool KItemListController::startDragging()
+void KItemListController::startDragging()
 {
     if (!m_view || !m_model) {
-        return false;
+        return;
     }
 
     const QSet<int> selectedItems = m_selectionManager->selectedItems();
     QMimeData* data = m_model->createMimeData(selectedItems);
     if (!data) {
-        return false;
+        return;
     }
 
     // The created drag object will be owned and deleted
@@ -711,7 +753,6 @@ bool KItemListController::startDragging()
     drag->setPixmap(pixmap);
 
     drag->exec(Qt::MoveAction | Qt::CopyAction | Qt::LinkAction, Qt::IgnoreAction);
-    return true;
 }
 
 #include "kitemlistcontroller.moc"