Resolves: rhbz#1715109 add All files to the graphic import dialog

to pick up things without extensions, for consistency with file->open

Change-Id: Ib119fb0d053d1d288eee7cd17fa4f12dcb9956d7
Reviewed-on: https://gerrit.libreoffice.org/73276
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

sfx2/source/dialog/filedlghelper.cxx

@@ -1896,12 +1896,24 @@ void FileDialogHelper_Impl::addGraphicFilter()
     bool bIsInOpenMode = isInOpenMode();
 
     try
+    {
+        // if the extension is not "All files", insert "All images"
+        if (aExtensions != FILEDIALOG_FILTER_ALL)
         {
             OUString aAllFilterName = SfxResId(STR_SFX_IMPORT_ALL_IMAGES);
             aAllFilterName = ::sfx2::addExtension( aAllFilterName, aExtensions, bIsInOpenMode, *this );
-
             xFltMgr->appendFilter( aAllFilterName, aExtensions );
-        maSelectFilter = aAllFilterName;
+            maSelectFilter = aAllFilterName; // and make it the default
+        }
+
+        // rhbz#1715109 always include All files *.* or *
+        OUString aAllFilesName = SfxResId( STR_SFX_FILTERNAME_ALL );
+        aAllFilesName = ::sfx2::addExtension( aAllFilesName, FILEDIALOG_FILTER_ALL, bIsInOpenMode, *this );
+        xFltMgr->appendFilter( aAllFilesName, FILEDIALOG_FILTER_ALL );
+
+        // if the extension is "All files", make that the default
+        if (aExtensions == FILEDIALOG_FILTER_ALL)
+            maSelectFilter = maSelectFilter;
     }
     catch( const IllegalArgumentException& )
     {