[Interest] [Development] Multi-Selection behavior of item views breaks drag'n'drop UX - options

[Elvis Stansvik]

Nice work Volker!

Elvis

Den fre 11 juni 2021 16:18Volker Hilsheimer <volker.hilsheimer at qt.io> skrev:

> To close this thread, a bunch of changes that fix this in the least
> intrusive way have been merged for Qt 6.2.
>
> In ExtendedSelection, Ctrl+Press does not deselect items that could also
> be dragged, Ctrl+Release does; Ctrl+Press on an unselected item selects the
> item, then you can drag it as part of a previous selection. An equivalent
> change n MultiSelection (minus the Ctrl):
>
> * https://codereview.qt-project.org/c/qt/qtbase/+/351595/8
> * https://codereview.qt-project.org/c/qt/qtbase/+/352401
>
> Thanks for the comments and reviews. Qt 6.2 should be available as
> snapshot packages already, and the Alpha is around the corner as well.
> Early feedback to those (and several other changes and fixes to Qt Widgets
> from the last couple of weeks [1]) would be most welcome.
>
>
> Cheers,
> Volker
>
> [1]
> https://codereview.qt-project.org/q/is:merged+branch:dev+path:%255Esrc/widgets/.*+after:2021-05-31
>
>
> > On 1 Jun 2021, at 21:43, Volker Hilsheimer <volker.hilsheimer at qt.io>
> wrote:
> >
> > But git history will remember the fool that broke all the things :P
> >
> > Anyway, a bunch of patches in the chain currently ending at
> >
> > https://codereview.qt-project.org/c/qt/qtbase/+/351595/3
> >
> > in case anyone wants to give it a swing. MultiSelection is not changed
> yet, and it looks like we might get away with a minimal change for
> ExtendedSelection.
> >
> > There’s no intention to bring those changes to Qt 5.
> >
> > Volker
> >
> >
> >> On 28 May 2021, at 19:01, Elvis Stansvik <elvstone at gmail.com> wrote:
> >>
> >> Yea man, just change it. No one remembers a coward! :)
> >>
> >> Den fre 28 maj 2021 kl 17:07 skrev David M. Cotter <dave at kjams.com>:
> >>>
> >>> assuming your change "does the right thing in all cases" then i think
> it should be the default.
> >>>
> >>> nobody WANTS the currently-bad behavior.
> >>>
> >>> -dave
> >>>
> >>>> On May 28, 2021, at 5:55 AM, Volker Hilsheimer <
> volker.hilsheimer at qt.io> wrote:
> >>>>
> >>>> Cross-posting from the development mailing list in case any of you
> have a strong opinion about this.
> >>>>
> >>>> Volker
> >>>>
> >>>>
> >>>>> On 28 May 2021, at 13:10, Volker Hilsheimer <volker.hilsheimer at qt.io>
> wrote:
> >>>>>
> >>>>> Hey Widget fans,
> >>>>>
> >>>>> I need your opinions on https://bugreports.qt.io/browse/QTBUG-59888
> >>>>>
> >>>>> The UX resulting from our (strange) choice to trigger selection
> changes on mouse press rather than mouse release is indeed quite horrible,
> as explained in the ticket.
> >>>>>
> >>>>> The options to fix that seem to be:
> >>>>>
> >>>>> 1) change the default behavior - always change selection on mouse
> release
> >>>>> 2) change the default behavior if drag (as per dragDropMode)
> >>>>> 3) make the "selection trigger" a property
> >>>>>
> >>>>> None of those options would IMHO result in a change that qualifies
> for stable branches. I’ve for now implemented option 3. This introduces new
> API, so if we agree that this is the way to go then it would ideally be
> merged before 6.2 feature freeze next Friday.
> >>>>>
> >>>>> https://codereview.qt-project.org/c/qt/qtbase/+/351595
> >>>>>
> >>>>> However, the possible property values seem oddly specific to this
> problem, and give that this is a 6.2 only change anyway, perhaps it would
> be best to simply change the default, which would then also make Qt
> matching native UIs better (ie Windows Explorer or macOS Finder)?
> >>>>>
> >>>>> Cheers,
> >>>>> Volker
> >>>>>
> >>>>> _______________________________________________
> >>>>> Development mailing list
> >>>>> Development at qt-project.org
> >>>>> https://lists.qt-project.org/listinfo/development
> >>>>
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