I think I can reproduce your bug, but I do not have enough time to debug it. Can you please file this bug upstream on bugreports.qt-project.org?
> The QFileDialog by default uses the native dialogs i.e. GTK2? On GNOME systems it does. The Gtk+ 2 dialog and native Qt dialogs look totally different, it is very easy to distinguish between them. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to qtbase-opensource-src in Ubuntu. https://bugs.launchpad.net/bugs/1324059 Title: file save dialog fails to confirm overwrite existing file Status in “qtbase-opensource-src” package in Ubuntu: New Bug description: I am developing an app using Qt5.2.1, PyQt5, Python3.4 testing on Ubuntu14.04LTS. All packages are Ubuntu packages. When a file exists already, e.g. 'foo.txt'. Start the app which creates files of suffix '.txt'. User creates new document and chooses 'Save'. App displays a file dialog for choosing a filename for saving, passing the default filename of 'untitled.txt'. Filename textbox is empty (incorrectly?). User enters just 'foo' in the filename text box. User chooses the 'Save' button. Dialog incorrectly fails to show a message box to confirm user wants to overwrite existing file. Dialog returns filename 'foo.txt' to the app. App proceeds to overwrite an existing file, causing user loss of data. The QFileDialog by default uses the native dialogs i.e. GTK2? If app instead tells it to use the Qt provided dialog (non-native), the behaviour is as expected (the textbox displays 'untitled.txt' and the dialog confirms overwrite.) (The native and non-native dialogs have different look-and-feel.) This is changed behaviour from Ubuntu 13.04 and Qt4.8. (But I am uncertain whether Qt used the native GTK dialog in those versions.) I have also tested on Ubuntu 14.04Gnome, and the behaviour seems slightly different: depending on whether the user Tabs out of the textbox, the dialog completes the filename in the textbox (i.e. finds the existing file and selects it) and DOES confirm overwrite. (I will need to retest to be sure about this.) Note that I have experienced a related bug, where the dialog emits 'fileSelected' signal twice, once with 'foo' and once with 'foo.txt.' Discussed at qt-project.org forums, but not reported here yet. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1324059/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
