[Interest] Press and hold keyboard key to bring up menu in QML

Jérôme Godbout jerome at bodycad.com
Fri Apr 1 16:40:20 CEST 2016

The hardware side should do this, you will be able to debounced the inputs,
filter them and avoid glitch and even make repeated or inertia of those
keys more easily.

On Fri, Apr 1, 2016 at 8:33 AM, Elvis Stansvik <elvstone at gmail.com> wrote:

> 2016-04-01 12:45 GMT+02:00 Elvis Stansvik <elvstone at gmail.com>:
> > Hi folks,
> >
> > I have a full screen, page based Qt Quick 2 application. Input is
> > contstrained by the hardware to the Left/Right/Return keyboard keys,
> > so is quite limited, and navigation between pages is done using
> > buttons on each page which handle return presses using (most of the
> > time) Keys.onReturnPressed and navigation between buttons and other
> > items with KeyNavigation.left/right.
> >
> > I now have the need to provide a special global shortcut: On almost
> > all of the screens, holding the Enter key for 3 seconds should bring
> > the user immediately to a sort of start screen, where he/she can
> > choose to go into Settings or Power Off. Kind of like how holding the
> > power button on a phone often brings up a power off/flight mode menu.
> >
> > I'm struggling to find a good way to handle this centrally: since
> > Enter presses are normally accepted (swallowed) by my various buttons
> > and other input items on the pages, where can I put some central key
> > press/release handler in which to start/stop a timer (to determine if
> > it was a long 3 sec press or not)?
> >
> > My pages are FocusScopes stuffed in a StackView inside a Window.
> >
> > Many thanks for any advice. Has noone had this kind of requirement
> > before? (Global "hold key" shortcut).
> Actually, scratch this. Our input device is a pushable wheel, and I've
> realized now that we better re-program the Arduino we have hooked up
> to it to have the logic to determine "long" vs "short" presses there
> instead, and deliver these as distinct keypresses.
> Elvis
> >
> > Elvis
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