Fix crash when closing the search dialog or KMail while search is in progress.

svn path=/trunk/kdenetwork/kmail/; revision=73081

kmfldsearch.cpp

@@ -41,6 +41,7 @@ KMFldSearch::KMFldSearch(KMMainWin* w, const char* name,
 
   mNumRules  = 2;
   mSearching = false;
+  mCloseRequested = false;
 
   setCaption(i18n("Search in Folders"));
   mGrid = new QGridLayout(this, mNumRules+4, 5, 4, 4);
@@ -338,6 +339,7 @@ void KMFldSearch::slotSearch()
   enableGUI();
   if( mLastFocus )
     mLastFocus->setFocus();
+  if (mCloseRequested) close();
 }
 
 
@@ -354,6 +356,19 @@ void KMFldSearch::slotClose()
 }
 
 
+//-----------------------------------------------------------------------------
+void KMFldSearch::closeEvent(QCloseEvent *e)
+{
+  if (mSearching)
+  {
+    mSearching = false;
+    mCloseRequested = true;
+    e->ignore();
+  }
+  else e->accept();
+}
+
+
 //-----------------------------------------------------------------------------
 void KMFldSearch::slotShowMsg(QListViewItem *item)
 {

kmfldsearch.h

@@ -58,6 +58,9 @@ protected:
   /** Reimplemented to react to Escape. */
   virtual void keyPressEvent(QKeyEvent*);
 
+  /** Reimplemented to stop searching when the window is closed */
+  virtual void closeEvent(QCloseEvent*);
+
 protected:
   QGridLayout* mGrid;
   QComboBox *mCbxFolders;
@@ -68,7 +71,7 @@ protected:
   int mNumRules, mNumMatches;
   int mCount;
   QString mSearchFolder;
-  bool mSearching, mStopped;
+  bool mSearching, mStopped, mCloseRequested;
   KMMainWin* mMainWin;
   QWidget* mLastFocus;
 };

kmmainwin.cpp

@@ -125,7 +125,7 @@ KMMainWin::KMMainWin(QWidget *, char *name) :
 KMMainWin::~KMMainWin()
 {
   if (searchWin)
-    delete searchWin;
+    searchWin->close();
   writeConfig();
   writeFolderConfig();