Fix QFileDialog Symbian native file dialog filename filtering.

Now QFileDialog static functions that use Symbian native file dialog
should find the same files as non-native QFileDialog for any given
filename filter.

Task-number: QTBUG-17298
Reviewed-by: Janne Koskinen
(cherry picked from commit 5ec67c969dce335a26c402b73bb19a6751401871)

1 files changed, 19 insertions, 33 deletions

diff --git a/src/gui/dialogs/qfiledialog_symbian.cpp b/src/gui/dialogs/qfiledialog_symbian.cpp
index b8ea5e5..ed98950 100644
--- a/src/gui/dialogs/qfiledialog_symbian.cpp
+++ b/src/gui/dialogs/qfiledialog_symbian.cpp
@@ -54,6 +54,9 @@
 
 QT_BEGIN_NAMESPACE
 
+extern QStringList qt_make_filter_list(const QString &filter); // defined in qfiledialog.cpp
+extern QStringList qt_clean_filter_list(const QString &filter); // defined in qfiledialog.cpp
+
 enum DialogMode { DialogOpen, DialogSave, DialogFolder };
 #if defined(Q_WS_S60) && defined(SYMBIAN_VERSION_SYMBIAN3)
 class CExtensionFilter : public MAknFileFilter
@@ -61,56 +64,39 @@ class CExtensionFilter : public MAknFileFilter
 public:
     void setFilter(const QString filter)
     {
-        filterList.clear();
-        if (filter.left(2) == QLatin1String("*.")) {
-            //Filter has only extensions
-            filterList << filter.split(QLatin1String(" "));
-            return;
-        } else {
-            //Extensions are in parenthesis and there may be several filters
-            QStringList separatedFilters(filter.split(QLatin1String(";;")));
-            for (int i = 0; i < separatedFilters.size(); i++) {
-                if (separatedFilters.at(i).contains(QLatin1String("(*)"))) {
-                    filterList << QLatin1String("(*)");
-                    return;
-                }
-            }
-            QRegExp rx(QLatin1String("\\(([^\\)]*)\\)"));
-            int pos = 0;
-            while ((pos = rx.indexIn(filter, pos)) != -1) {
-                filterList << rx.cap(1).split(QLatin1String(" "));
-                pos += rx.matchedLength();
-            }
+        QStringList unparsedFiltersList = qt_make_filter_list(filter);
+        QStringList filterList;
+        filterRxList.clear();
+
+        foreach (QString unparsedFilter, unparsedFiltersList) {
+            filterList << qt_clean_filter_list(unparsedFilter);
+        }
+        foreach (QString currentFilter, filterList) {
+            QRegExp filterRx(currentFilter, Qt::CaseInsensitive, QRegExp::Wildcard);
+            filterRxList << filterRx;
         }
     }
 
     TBool Accept(const TDesC &/*aDriveAndPath*/, const TEntry &aEntry) const
     {
-        if (aEntry.IsDir())
-            return ETrue;
-
         //If no filter for files, all can be accepted
-        if (filterList.isEmpty())
+        if (filterRxList.isEmpty())
             return ETrue;
 
-        if (filterList == QStringList(QLatin1String("(*)")))
+        if (aEntry.IsDir())
             return ETrue;
 
-        for (int i = 0; i < filterList.size(); ++i) {
-            QString extension = filterList.at(i);
-            //remove '*' from the beginning of the extension
-            if (extension.at(0) == QLatin1Char('*'))
-                extension = extension.mid(1);
-
+        foreach (QRegExp rx, filterRxList) {
             QString fileName = qt_TDesC2QString(aEntry.iName);
-            if (fileName.endsWith(extension))
+            if (rx.exactMatch(fileName))
                 return ETrue;
         }
+
         return EFalse;
     }
 
 private:
-    QStringList filterList;
+    QList<QRegExp> filterRxList;
 };
 #endif