Fixed issue that sometimes the dragging from an inactive view to an active view does not work. Note that this is just a workaround, QAbstractItemView should take care about this itself. I tried to provide a Qt-only example for this, but it is more tricky than I thought: it seems some expensive operations are required, so that the position of the second mouse-move event is outside the item area... I'll retest this issue without workaround if Qt 4.4 final is out.

BUG: 154619

svn path=/trunk/KDE/kdebase/apps/; revision=803980

3 files changed, 21 insertions, 1 deletions

diff --git a/src/dolphincolumnwidget.cpp b/src/dolphincolumnwidget.cpp
index cf2ae7656..a380dc52b 100644
--- a/src/dolphincolumnwidget.cpp
+++ b/src/dolphincolumnwidget.cpp
@@ -337,6 +337,10 @@ void DolphinColumnWidget::paintEvent(QPaintEvent* event)
 void DolphinColumnWidget::mousePressEvent(QMouseEvent* event)
 {
     requestActivation();
+    if (indexAt(event->pos()).isValid() && (event->button() == Qt::LeftButton)) {
+        // TODO: see comment in DolphinIconsView::mousePressEvent()
+        setState(QAbstractItemView::DraggingState);
+    }
     QListView::mousePressEvent(event);
 }
 
diff --git a/src/dolphindetailsview.cpp b/src/dolphindetailsview.cpp
index 08d03fb0b..29ee90830 100644
--- a/src/dolphindetailsview.cpp
+++ b/src/dolphindetailsview.cpp
@@ -188,6 +188,11 @@ void DolphinDetailsView::mousePressEvent(QMouseEvent* event)
     QTreeView::mousePressEvent(event);
 
     const QModelIndex index = indexAt(event->pos());
+    if (index.isValid() && (event->button() == Qt::LeftButton)) {
+        // TODO: see comment in DolphinIconsView::mousePressEvent()
+        setState(QAbstractItemView::DraggingState);
+    }
+
     if (!index.isValid() || (index.column() != DolphinModel::Name)) {
         const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
         if (!(modifier & Qt::ShiftModifier) && !(modifier & Qt::ControlModifier)) {
@@ -250,6 +255,7 @@ void DolphinDetailsView::mouseReleaseEvent(QMouseEvent* event)
 void DolphinDetailsView::startDrag(Qt::DropActions supportedActions)
 {
     DragAndDropHelper::startDrag(this, supportedActions);
+    m_showElasticBand = false;
 }
 
 void DolphinDetailsView::dragEnterEvent(QDragEnterEvent* event)
diff --git a/src/dolphiniconsview.cpp b/src/dolphiniconsview.cpp
index a9659739a..2e6d7dca6 100644
--- a/src/dolphiniconsview.cpp
+++ b/src/dolphiniconsview.cpp
@@ -167,7 +167,17 @@ void DolphinIconsView::contextMenuEvent(QContextMenuEvent* event)
 void DolphinIconsView::mousePressEvent(QMouseEvent* event)
 {
     m_controller->requestActivation();
-    if (!indexAt(event->pos()).isValid()) {
+    const QModelIndex index = indexAt(event->pos());
+    if (index.isValid() && (event->button() == Qt::LeftButton)) {
+        // TODO: It should not be necessary to manually set the dragging state, but I could
+        // not reproduce this issue with a Qt-only example yet to find the root cause.
+        // Issue description: start Dolphin, split the view and drag an item from the
+        // inactive view to the active view by a very fast mouse movement. Result:
+        // the item gets selected instead of being dragged...
+        setState(QAbstractItemView::DraggingState);
+    }
+
+    if (!index.isValid()) {
         const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
         if (!(modifier & Qt::ShiftModifier) && !(modifier & Qt::ControlModifier)) {
             clearSelection();