Touchpad Gestures - Experimental

[Martin Graesslin]

Hi Jens,

I'm extremely sorry, there must have been a huge misunderstanding.

Most of the gestures you came up with are not at all supported. We only get 
the following touchpad gestures reported:

* multi-finger pinch/rotate gesture
* multi-finger swipe gesture

The supported gestures are documented at https://wayland.freedesktop.org/
libinput/doc/1.5.0/gestures.html

Anything else is reported as a (mouse) pointer movement/press/release. It's 
not at all reported as touchpad event.

Also there is no palm events. If you rest your palm on the touchpad the 
underlying technology detects it and goes "let's ignore that".

I'm very sorry, but overall this looks like a lot has to be removed from the 
draft document again.

I don't really understand why the supported options where not verified with me 
before starting to design the document.

I'm very, very sorry that you created such a great document, which now can 
only be partially used.

Martin

On Thursday, November 24, 2016 3:19:28 PM CET Jens Reuterberg wrote:
> Sry for long wait, there was some misunderstandings concerning touchpad
> gestures based on past work and was set right today that no matter on what
> level we where at, we should pass it onward.
> 
> So these are all based on the normal assumptions and understanding of how
> designing something which we don't know the technical limitations of will
> work.
> 
> This it is the design of a pattern, a language (since otherwise its just
> another desktop cube or burning closing of windows) - so if one isn't
> possible, chances are we are back to square one. For example, most of these
> have to do with Windows and Workspaces (giving a quick nod to apps in Pinch-
> to-zoom and Rotate) which is intentional. Also note that Windows and
> Workspaces use four fingers to control things, which is also intentional
> (with the exception of the Pinch manouver which is really tricky to do with
> four fingers in the little available testing I could do). The actions
> SHOULD mimic each other so that each one isn't one more complex detail
> unrelated to everything else that the user have to learn.
> 
> While "Four fingers reserved for WM/DE" is a good guide some care have to be
> taken since cramming four fingers onto a touchpad can be tricky. The
> question is if it is technically possible. If not, should "three fingers
> reserved for WM/DE" replace it? This is impossible to tell now of course.
> 
> This is a link to the draft of the design document:
> https://notes.kde.org/p/touchpadgestures
> 
> The document is split into
> 1) Design Notes (information about the idea of the design)
> 2) Possible Actions (list of Actions mostly focusing of course (see above)
> on the WM/DE)
> 3) Possible Gestures (a list of gestures ranging from unused now, to
> probably impossible technically)
> 4) Suggested Combinations (suggested to be implemented as standards)
> 5) Notes and planning (some notes on planning for the future and the
> problems we will run into design wise)
> 6) (For reference) Touch Screen notes (early notes of a talk between me and
> Aleix about touchscreens where the initial idea of "reserve N finger actions
> to DE/WM came from)
> 
> Finally - these are of course all experimental and tentative design.
> Anything else would be practically impossible.

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 195 bytes
Desc: This is a digitally signed message part.
URL: <http://mail.kde.org/pipermail/plasma-devel/attachments/20161124/aa3c1790/attachment.sig>