[texworks] Bug on OS X

[Jonathan Kew]

On 17 Apr 2010, at 18:09, Stefan Löffler wrote:

> Hi,
> 
> Am 2010-04-16 08:09, schrieb Jérome Laurens:
>> On the mac, the programming interface offered virtual support for such keyboard shortcuts as an inheritance from the NEXT days (OS X is based on Next computers).
>> But IIRC this was not fully implemented in the user interface. 
>> 
>> On Mac OS X, to access a menu item without the mouse, you
>> 1 - Move the focus to the main menu bar
>> 2 - navigate through the menus using the arrow keys
>> 3 - use  the space key to simulate a mouse down
>> 
>> Instead of navigating with the arrow key, you can type the name of the menu or menu item,
>> in most of the cases, the first letters suffice. It is somehow less comfortable than assigning a shortcut to each menu item like windows does
>> but it works as is with all the apps, including TeXworks of course.
>> 
>> The problem is that the keystroke is also captured by the text window :
>> 1 - open TeXworks
>> 2 - press keys: Ctrl-F2 "F" "I" <space> "S" <space>
>> This activates the Save command from the File menu.
>> You see the problem in the untitled document where keys "F" "I" <space>  where captured such that it starts now with "fi ".
>> This is an unexpected result solved by simply "undoing".
>> 
>> I consider this a low level bug and I would not be surprised if it were a problem in Qt itself.
>> 
> 
> This sounds similar to issue 180
> (http://code.google.com/p/texworks/issues/detail?id=180) which was never
> followed up on, however.
> This seems to be some kind of problem with the keyboard focus. Normally,
> the editor widget should only receive key events if it has the focus,
> and should loose this focus if you navigate to the menubar. As it still
> receives key events, apparently this never happens or is not processed
> correctly.

Right. I can confirm this happens on OS X when you use Ctrl-F2 to activate the menubar.

The same happens with Qt demo applications; this is a Qt issue rather than a texworks-specific one, I believe.

> Since I have neither any experience with Mac nor access to one, I can't
> test any ideas and therefor can't help with any bug fixes here. But if
> someone who managed to build Tw on Mac is willing to try a few things, I
> could give some ideas.
> 
> Regards,
> Stefan
> 
> PS: Some Qt menubar issues on the mac have recently been fixed
> (http://bugreports.qt.nokia.com/browse/QTBUG-8698). I have no idea if
> they are related to this issue, though.

This seems to be referring to the Symbian platform, not the Mac.