path: root/kde-base/dolphin/files/dolphin-4.9.4-drag-and-drop-and-keyboard-focus.patch

diff --git a/dolphin/src/kitemviews/kstandarditemlistwidget.cpp b/dolphin/src/kitemviews/kstandarditemlistwidget.cpp
index f92cab5..af16954 100644
--- a/dolphin/src/kitemviews/kstandarditemlistwidget.cpp
+++ b/dolphin/src/kitemviews/kstandarditemlistwidget.cpp
@@ -193,7 +193,8 @@ KStandardItemListWidget::KStandardItemListWidget(KItemListWidgetInformant* infor
     m_additionalInfoTextColor(),
     m_overlay(),
     m_rating(),
-    m_roleEditor(0)
+    m_roleEditor(0),
+    m_oldRoleEditor(0)
 {
 }
 
@@ -203,6 +204,7 @@ KStandardItemListWidget::~KStandardItemListWidget()
     m_textInfo.clear();
 
     delete m_roleEditor;
+    delete m_oldRoleEditor;
 }
 
 void KStandardItemListWidget::setLayout(Layout layout)
@@ -609,13 +611,16 @@ void KStandardItemListWidget::editedRoleChanged(const QByteArray& current, const
                        this, SLOT(slotRoleEditingCanceled(int,QByteArray,QVariant)));
             disconnect(m_roleEditor, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
                        this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
-            // Do not delete the role editor using deleteLater() because we might be
-            // inside a nested event loop which has been started by one of its event
-            // handlers (contextMenuEvent() or drag&drop inside mouseMoveEvent()).
-            m_roleEditor->deleteWhenIdle();
+            m_oldRoleEditor = m_roleEditor;
+            m_roleEditor->hide();
             m_roleEditor = 0;
         }
         return;
+    } else if (m_oldRoleEditor) {
+        // Delete the old editor before constructing the new one to
+        // prevent a memory leak.
+        m_oldRoleEditor->deleteLater();
+        m_oldRoleEditor = 0;
     }
 
     Q_ASSERT(!m_roleEditor);
@@ -1267,21 +1272,19 @@ QRectF KStandardItemListWidget::roleEditingRect(const QByteArray& role) const
 
 void KStandardItemListWidget::closeRoleEditor()
 {
+    disconnect(m_roleEditor, SIGNAL(roleEditingCanceled(int,QByteArray,QVariant)),
+               this, SLOT(slotRoleEditingCanceled(int,QByteArray,QVariant)));
+    disconnect(m_roleEditor, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
+               this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
+
     if (m_roleEditor->hasFocus()) {
         // If the editing was not ended by a FocusOut event, we have
         // to transfer the keyboard focus back to the KItemListContainer.
         scene()->views()[0]->parentWidget()->setFocus();
     }
 
-    disconnect(m_roleEditor, SIGNAL(roleEditingCanceled(int,QByteArray,QVariant)),
-               this, SLOT(slotRoleEditingCanceled(int,QByteArray,QVariant)));
-    disconnect(m_roleEditor, SIGNAL(roleEditingFinished(int,QByteArray,QVariant)),
-               this, SLOT(slotRoleEditingFinished(int,QByteArray,QVariant)));
-
-    // Do not delete the role editor using deleteLater() because we might be
-    // inside a nested event loop which has been started by one of its event
-    // handlers (contextMenuEvent() or drag&drop inside mouseMoveEvent()).
-    m_roleEditor->deleteWhenIdle();
+    m_oldRoleEditor = m_roleEditor;
+    m_roleEditor->hide();
     m_roleEditor = 0;
 }
 
diff --git a/dolphin/src/kitemviews/kstandarditemlistwidget.h b/dolphin/src/kitemviews/kstandarditemlistwidget.h
index 787722d..386f60e 100644
--- a/dolphin/src/kitemviews/kstandarditemlistwidget.h
+++ b/dolphin/src/kitemviews/kstandarditemlistwidget.h
@@ -241,6 +241,7 @@ private:
     QPixmap m_rating;
 
     KItemListRoleEditor* m_roleEditor;
+    KItemListRoleEditor* m_oldRoleEditor;
 
     friend class KStandardItemListWidgetInformant; // Accesses private static methods to be able to
                                                    // share a common layout calculation
diff --git a/dolphin/src/kitemviews/private/kitemlistroleeditor.cpp b/dolphin/src/kitemviews/private/kitemlistroleeditor.cpp
index 78dbfe9..1e4b5fd 100644
--- a/dolphin/src/kitemviews/private/kitemlistroleeditor.cpp
+++ b/dolphin/src/kitemviews/private/kitemlistroleeditor.cpp
@@ -26,9 +26,7 @@ KItemListRoleEditor::KItemListRoleEditor(QWidget *parent) :
     KTextEdit(parent),
     m_index(0),
     m_role(),
-    m_blockFinishedSignal(false),
-    m_eventHandlingLevel(0),
-    m_deleteAfterEventHandling(false)
+    m_blockFinishedSignal(false)
 {
     setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
     setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
@@ -66,20 +64,6 @@ QByteArray KItemListRoleEditor::role() const
     return m_role;
 }
 
-void KItemListRoleEditor::deleteWhenIdle()
-{
-    if (m_eventHandlingLevel > 0) {
-        // We are handling an event at the moment. It could be that we
-        // are in a nested event loop run by contextMenuEvent() or a
-        // call of mousePressEvent() which results in drag&drop.
-        // -> do not call deleteLater() to prevent a crash when we
-        //    return from the nested event loop.
-        m_deleteAfterEventHandling = true;
-    } else {
-        deleteLater();
-    }
-}
-
 bool KItemListRoleEditor::eventFilter(QObject* watched, QEvent* event)
 {
     if (watched == parentWidget() && event->type() == QEvent::Resize) {
@@ -91,42 +75,13 @@ bool KItemListRoleEditor::eventFilter(QObject* watched, QEvent* event)
 
 bool KItemListRoleEditor::event(QEvent* event)
 {
-    ++m_eventHandlingLevel;
-
     if (event->type() == QEvent::FocusOut) {
         QFocusEvent* focusEvent = static_cast<QFocusEvent*>(event);
         if (focusEvent->reason() != Qt::PopupFocusReason) {
             emitRoleEditingFinished();
         }
     }
-
-    const int result = KTextEdit::event(event);
-    --m_eventHandlingLevel;
-
-    if (m_deleteAfterEventHandling && m_eventHandlingLevel == 0) {
-        // Schedule this object for deletion and make sure that we do not try
-        // to deleteLater() again when the DeferredDelete event is received.
-        deleteLater();
-        m_deleteAfterEventHandling = false;
-    }
-
-    return result;
-}
-
-bool KItemListRoleEditor::viewportEvent(QEvent* event)
-{
-    ++m_eventHandlingLevel;
-    const bool result = KTextEdit::viewportEvent(event);
-    --m_eventHandlingLevel;
-
-    if (m_deleteAfterEventHandling && m_eventHandlingLevel == 0) {
-        // Schedule this object for deletion and make sure that we do not try
-        // to deleteLater() again when the DeferredDelete event is received.
-        deleteLater();
-        m_deleteAfterEventHandling = false;
-    }
-
-    return result;
+    return KTextEdit::event(event);
 }
 
 void KItemListRoleEditor::keyPressEvent(QKeyEvent* event)
@@ -144,8 +99,7 @@ void KItemListRoleEditor::keyPressEvent(QKeyEvent* event)
         return;
     case Qt::Key_Enter:
     case Qt::Key_Return:
-        // TODO: find a better way to fix the bug 309760
-        clearFocus(); // emitRoleEditingFinished(); results in a crash
+        emitRoleEditingFinished();
         event->accept();
         return;
     default:
diff --git a/dolphin/src/kitemviews/private/kitemlistroleeditor.h b/dolphin/src/kitemviews/private/kitemlistroleeditor.h
index a2f7058..aa2c977 100644
--- a/dolphin/src/kitemviews/private/kitemlistroleeditor.h
+++ b/dolphin/src/kitemviews/private/kitemlistroleeditor.h
@@ -47,15 +47,6 @@ public:
     void setRole(const QByteArray& role);
     QByteArray role() const;
 
-    /**
-     * Calls deleteLater() if no event is being handled at the moment.
-     * Otherwise, the deletion is deferred until the event handling is
-     * finished. This prevents that the deletion happens inside a nested
-     * event loop which might be run in contextMenuEvent() or
-     * mouseMoveEvent() because this would probably cause a crash.
-     */
-    void deleteWhenIdle();
-
     virtual bool eventFilter(QObject* watched, QEvent* event);
 
 signals:
@@ -64,7 +55,6 @@ signals:
 
 protected:
     virtual bool event(QEvent* event);
-    virtual bool viewportEvent(QEvent* event);
     virtual void keyPressEvent(QKeyEvent* event);
 
 private slots:
@@ -85,8 +75,6 @@ private:
     int m_index;
     QByteArray m_role;
     bool m_blockFinishedSignal;
-    int m_eventHandlingLevel;
-    bool m_deleteAfterEventHandling;
 };
 
 #endif
diff --git a/dolphin/src/views/dolphinview.cpp b/dolphin/src/views/dolphinview.cpp
index 70a7394..0e97c5a 100644
--- a/dolphin/src/views/dolphinview.cpp
+++ b/dolphin/src/views/dolphinview.cpp
@@ -1227,11 +1227,14 @@ void DolphinView::updateViewState()
 
         QSet<int> selectedItems = selectionManager->selectedItems();
 
-        for (QList<KUrl>::iterator it = m_selectedUrls.begin(); it != m_selectedUrls.end(); ++it) {
+        QList<KUrl>::iterator it = m_selectedUrls.begin();
+        while (it != m_selectedUrls.end()) {
             const int index = m_model->index(*it);
             if (index >= 0) {
                 selectedItems.insert(index);
-                m_selectedUrls.erase(it);
+                it = m_selectedUrls.erase(it);
+            } else {
+                 ++it;
             }
         }