Review Request 130245: Fix Crash on JoyStick Config when js device did not contain regular joystick button

[TOM Harrison via Review Board]

> On 九月 16, 2017, 9:19 a.m., Albert Astals Cid wrote:
> > Are you sure this fixes anything?
> > 
> > Just before the lines you changed we have
> > 
> > 
> > if ( ! buttonTbl->item(number, 0) )
> >       buttonTbl->setItem(number, 0, new QTableWidgetItem());
> >       
> > Which will create the item, no?
> > 
> > Or is it because number is a negative value somehow?
> 
> TOM Harrison wrote:
>     no, It still NULL after that.
>     
>     I think because "btnx keyboard" is not a real joystick, so It may not accept any button.
> 
> Albert Astals Cid wrote:
>     Can you please check what is the value of number? Because what you're saying kind of falls on the "can't be" territory. We just set an item, it can't be null just on the next line.
> 
> TOM Harrison wrote:
>     number is 0, it did has execute the setItem. but still null after that.
> 
> TOM Harrison wrote:
>     I found every button is all execute setItem, but still null after that.
> 
> Albert Astals Cid wrote:
>     i'm going to guess this has not worked in a long time and needs a buttonTbl->setColumnCount(1) after buttonTbl->setRowCount(joydev->numButtons());?
>     
>     Does that fix it?
> 
> TOM Harrison wrote:
>     Not fix. still crash after add buttonTbl->setColumnCount(1)
> 
> TOM Harrison wrote:
>     I have test a real joystick. It working. It only not working on "btnx Keyboard" which is generated by btnx.
> 
> Albert Astals Cid wrote:
>     What is btnx?

A kind of mouse key re-routing software. I use for define custom hotkey for extra mouse key.
Its github: https://github.com/cdobrich/btnx


- TOM


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On 九月 16, 2017, 7:07 a.m., TOM Harrison wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://git.reviewboard.kde.org/r/130245/
> -----------------------------------------------------------
> 
> (Updated 九月 16, 2017, 7:07 a.m.)
> 
> 
> Review request for kde-workspace.
> 
> 
> Repository: plasma-desktop
> 
> 
> Description
> -------
> 
> This patch will fix the joystick config when detect "btnx keyboard" as joystick, It will crash.
> Due to Btnx keyboard is not a regular joystick.
> Just add one more if to fix this crash.
> 
> 
> Diffs
> -----
> 
>   kcms/hardware/joystick/joywidget.cpp 6007d867 
> 
> 
> Diff: https://git.reviewboard.kde.org/r/130245/diff/1/
> 
> 
> Testing
> -------
> 
> 
> Thanks,
> 
> TOM Harrison
> 
>

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