Show an error when dragging above a folder without write access

Got OK from the translator team to add this new string.

5 files changed, 31 insertions, 20 deletions

diff --git a/src/panels/folders/folderspanel.cpp b/src/panels/folders/folderspanel.cpp
index 275cd7772..bb2198d48 100644
--- a/src/panels/folders/folderspanel.cpp
+++ b/src/panels/folders/folderspanel.cpp
@@ -259,7 +259,15 @@ void FoldersPanel::slotViewContextMenuRequested(const QPointF& pos)
 void FoldersPanel::slotItemDropEvent(int index, QGraphicsSceneDragDropEvent* event)
 {
     if (index >= 0) {
-        const KFileItem destItem = fileItemModel()->fileItem(index);
+        KFileItemModel* model = fileItemModel();
+        KFileItem destItem = model->fileItem(index);
+        if (destItem.isNull()) {
+            destItem = model->rootItem();
+            if (destItem.isNull()) {
+                kWarning() << "No destination item available for drop operation.";
+                return;
+            }
+        }
 
         QDropEvent dropEvent(event->pos().toPoint(),
                              event->possibleActions(),
@@ -267,7 +275,7 @@ void FoldersPanel::slotItemDropEvent(int index, QGraphicsSceneDragDropEvent* eve
                              event->buttons(),
                              event->modifiers());
 
-        DragAndDropHelper::dropUrls(destItem, url(), &dropEvent);
+        DragAndDropHelper::dropUrls(destItem, &dropEvent);
     }
 }
 
diff --git a/src/panels/places/placespanel.cpp b/src/panels/places/placespanel.cpp
index 902c436cf..6f522fad2 100644
--- a/src/panels/places/placespanel.cpp
+++ b/src/panels/places/placespanel.cpp
@@ -48,7 +48,8 @@ void PlacesPanel::mousePressEvent(QMouseEvent* event)
 void PlacesPanel::slotUrlsDropped(const KUrl& dest, QDropEvent* event, QWidget* parent)
 {
     Q_UNUSED(parent);
-    DragAndDropHelper::dropUrls(KFileItem(), dest, event);
+    const KFileItem destItem(KFileItem::Unknown, KFileItem::Unknown, dest);
+    DragAndDropHelper::dropUrls(destItem, event);
 }
 
 void PlacesPanel::emitExtendedUrlChangedSignal(const KUrl& url)
diff --git a/src/views/dolphinview.cpp b/src/views/dolphinview.cpp
index 0edcb2894..f17749b83 100644
--- a/src/views/dolphinview.cpp
+++ b/src/views/dolphinview.cpp
@@ -815,7 +815,14 @@ void DolphinView::slotItemUnhovered(int index)
 
 void DolphinView::slotItemDropEvent(int index, QGraphicsSceneDragDropEvent* event)
 {
-    const KFileItem destItem = fileItemModel()->fileItem(index);
+    KFileItem destItem = fileItemModel()->fileItem(index);
+    if (destItem.isNull()) {
+        destItem = fileItemModel()->rootItem();
+        if (destItem.isNull()) {
+            kWarning() << "No destination item available for drop operation.";
+            return;
+        }
+    }
 
     QDropEvent dropEvent(event->pos().toPoint(),
                          event->possibleActions(),
@@ -823,7 +830,7 @@ void DolphinView::slotItemDropEvent(int index, QGraphicsSceneDragDropEvent* even
                          event->buttons(),
                          event->modifiers());
 
-    const QString error = DragAndDropHelper::dropUrls(destItem, url(), &dropEvent);
+    const QString error = DragAndDropHelper::dropUrls(destItem, &dropEvent);
     if (!error.isEmpty()) {
         emit errorMessage(error);
     }
diff --git a/src/views/draganddrophelper.cpp b/src/views/draganddrophelper.cpp
index ea92787ab..91eb4267d 100644
--- a/src/views/draganddrophelper.cpp
+++ b/src/views/draganddrophelper.cpp
@@ -28,12 +28,14 @@
 #include <QtDBus>
 #include <QDropEvent>
 
-QString DragAndDropHelper::dropUrls(const KFileItem& destItem,
-                                    const KUrl& destPath,
-                                    QDropEvent* event)
+QString DragAndDropHelper::dropUrls(const KFileItem& destItem, QDropEvent* event)
 {
-    const bool dropToItem = !destItem.isNull() && (destItem.isDir() || destItem.isDesktopFile());
-    const KUrl destination = dropToItem ? destItem.url() : destPath;
+    Q_ASSERT(!destItem.isNull());
+
+    const KUrl destination = destItem.url();
+    if (!destItem.isWritable()) {
+        return i18nc("@info:status", "Access denied. Could not write to <filename>%1</filename>", destination.pathOrUrl());
+    }
 
     const QMimeData* mimeData = event->mimeData();
     if (mimeData->hasFormat("application/x-kde-dndextract")) {
@@ -50,11 +52,7 @@ QString DragAndDropHelper::dropUrls(const KFileItem& destItem,
             }
         }
 
-        if (dropToItem) {
-            KonqOperations::doDrop(destItem, destination, event, QApplication::activeWindow());
-        } else {
-            KonqOperations::doDrop(KFileItem(), destination, event, QApplication::activeWindow());
-        }
+        KonqOperations::doDrop(destItem, destination, event, QApplication::activeWindow());
     }
 
     return QString();
diff --git a/src/views/draganddrophelper.h b/src/views/draganddrophelper.h
index d00e11157..1998a85a0 100644
--- a/src/views/draganddrophelper.h
+++ b/src/views/draganddrophelper.h
@@ -38,15 +38,12 @@ public:
      * destination. A context menu with the options
      * 'Move Here', 'Copy Here', 'Link Here' and
      * 'Cancel' is offered to the user.
-     * @param destItem  Item of the destination (can be null, see KFileItem::isNull()).
-     * @param destPath  Path of the destination.
+     * @param destItem  Item of the destination.
      * @param event     Drop event.
      * @return          Error message if dropping is not possible. If an empty string
      *                  is returned, the dropping has been successful.
      */
-    static QString dropUrls(const KFileItem& destItem,
-                            const KUrl& destPath,
-                            QDropEvent* event);
+    static QString dropUrls(const KFileItem& destItem, QDropEvent* event);
 };
 
 #endif