[kwin] [Bug 382219] Touch screen swipe gestures interferes with Latte dock's ability to show itself if hidden (even without a touch screen).

[Martin Flöser]

https://bugs.kde.org/show_bug.cgi?id=382219

--- Comment #12 from Martin Flöser  ---
Sounds good

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[kwin] [Bug 382219] Touch screen swipe gestures interferes with Latte dock's ability to show itself if hidden (even without a touch screen).

[Michail Vourlakos]

https://bugs.kde.org/show_bug.cgi?id=382219

--- Comment #11 from Michail Vourlakos  ---
(In reply to Martin Flöser from comment #4)
> IIRC the auto hiding is done in a way that Qt doesn't notice it. Are you
> sure you implemented it correctly? It's important to not do QWindow::hide on
> the window

Just to conclude in this ;)

the good news is that I managed to activate kwin edges with Latte and overcome
also the [1] issue (when the dock becomes hidden in an edge the animations
arent played). To workaround this I created a ghostWindow per dock with 1px
thickness that is responsible to make the communication with KWin concerning
KWin edges activation/deactivation.

I will make this the default behavior for the upcoming v0.8 because it fixed
issues and also it demonstrates fantastic possibilities:

a. in !compositing mode when the dock isHidden there is no more 1px appearance
at the edge of the screen
b. kwin screen edges provide the beautiful indicator when the mouse approachs
the edge
c. I managed to orchestrate it with upcoming multiple running layouts in
different activities. The user changes activities and as such layouts and the
corner edges are updated according to the current activity
d. works just fine with wayland
e. the user can de-activate this behaviour if prefers to use the old way of
hiding and showing docks

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[kwin] [Bug 382219] Touch screen swipe gestures interferes with Latte dock's ability to show itself if hidden (even without a touch screen).

[Michail Vourlakos]

https://bugs.kde.org/show_bug.cgi?id=382219

--- Comment #10 from Michail Vourlakos  ---
reported also here for the plasma case:
https://bugs.kde.org/show_bug.cgi?id=392464

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[kwin] [Bug 382219] Touch screen swipe gestures interferes with Latte dock's ability to show itself if hidden (even without a touch screen).

[Michail Vourlakos]

https://bugs.kde.org/show_bug.cgi?id=382219

--- Comment #9 from Michail Vourlakos  ---
> The screenedge is a toggle. If you constantly move your mouse there you show 
> and hide the edge. I don't see a bug in the plasma case, but expected 
> behavior.

but if the mouse didnt leave the panel that is sliding in I cant understand why
the edge should be activated. The panel is shown so the edge shouldnt be valid.

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[kwin] [Bug 382219] Touch screen swipe gestures interferes with Latte dock's ability to show itself if hidden (even without a touch screen).

[Martin Flöser]

https://bugs.kde.org/show_bug.cgi?id=382219

--- Comment #8 from Martin Flöser  ---
The screenedge is a toggle. If you constantly move your mouse there you show
and hide the edge. I don't see a bug in the plasma case, but expected behavior.

In the latte case the problem is that you still do things wrong. There's the
shaped window and it steals the events. Remove it.

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[kwin] [Bug 382219] Touch screen swipe gestures interferes with Latte dock's ability to show itself if hidden (even without a touch screen).

[Michail Vourlakos]

https://bugs.kde.org/show_bug.cgi?id=382219

--- Comment #7 from Michail Vourlakos  ---
Just to observe it yourself, under X11.


Plasma issue (left panel - auto hidden - gesture enabled for left edge): 
https://drive.google.com/file/d/1UTR5QLQLA3sxBNKkgmscm3QGo5Wjs4YT/view

What I am doing is forcing the mouse continuously to the left edge.


Latte issue (left dock - auto hidden - gesture enabled for left edge:
https://drive.google.com/file/d/1SI7NnIJ8biBZT6VAuTSAYWRW4QM3bMHW/view?usp=sharing

For Latte in order to show the dock the mouse must leave that 1px wide area at
the left edge.


Probably this is happening because it gets QEvent::Leave after QEvent::Enter so
containsMouse flag which is set through (QEvent::Enter and QEvent::Leave
events) is faulty. There is something 1px wide in the left edge at all cases
under X11.

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[kwin] [Bug 382219] Touch screen swipe gestures interferes with Latte dock's ability to show itself if hidden (even without a touch screen).

[Michail Vourlakos]

https://bugs.kde.org/show_bug.cgi?id=382219

--- Comment #6 from Michail Vourlakos  ---
(In reply to Martin Flöser from comment #5)
> See https://community.kde.org/KWin/Screen_Edges and
> https://cgit.kde.org/kwin.git/tree/tests/screenedgeshowtest.cpp

Martin I dont think the issue is with the screen edge window but rather with
the gesture window, arent they different?

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[kwin] [Bug 382219] Touch screen swipe gestures interferes with Latte dock's ability to show itself if hidden (even without a touch screen).

[Martin Flöser]

https://bugs.kde.org/show_bug.cgi?id=382219

--- Comment #5 from Martin Flöser  ---
See https://community.kde.org/KWin/Screen_Edges and
https://cgit.kde.org/kwin.git/tree/tests/screenedgeshowtest.cpp

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[kwin] [Bug 382219] Touch screen swipe gestures interferes with Latte dock's ability to show itself if hidden (even without a touch screen).

[Martin Flöser]

https://bugs.kde.org/show_bug.cgi?id=382219

--- Comment #4 from Martin Flöser  ---
IIRC the auto hiding is done in a way that Qt doesn't notice it. Are you sure
you implemented it correctly? It's important to not do QWindow::hide on the
window

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[kwin] [Bug 382219] Touch screen swipe gestures interferes with Latte dock's ability to show itself if hidden (even without a touch screen).

[Michail Vourlakos]

https://bugs.kde.org/show_bug.cgi?id=382219

Michail Vourlakos  changed:

   What|Removed |Added

 CC||mvourla...@gmail.com

--- Comment #3 from Michail Vourlakos  ---
(In reply to Martin Flöser from comment #1)
> Latte dock should use the functionality provided by KWin for auto hiding on
> screen edges.

Ok, let's discuss this.

The thing is that I just tried to use the KWin+Plasma way for informing KWin
(under wayland) and xcb(under X11) but I had the following issues...

1. Because Qt considers the window out-of-screen when it is hidden all the
animations for tasks are played after the window is shown... So animations that
are not needed any more create a confusion to the user. Latte to workaround
that Qt behavior isnt hidding the dock when it is hidden (it just sets a very
small mask)

2. The issue isnt solved even with plasma panels usage under X11. For plasma
panels if at a specific edge a gesture has been set and the panel is
auto-hidden then the slide-in animation is played twice.
By tracking this down there is a following bug: 
a. When the user is touching the edge of a hidden panel then a QEvent::Enter is
received
b. but immediately afterwards it receives also a QEvent::Leave, this is because
the gesture possibly creates a small window on top of everything even on top of
panels of docks

[2] is happening only on X11, for Wayland everything works as expected...


So concerning Latte, I would consider to support this because it works just
fine under Wayland and I could forward the users to disable the Gestures if
they dont need them under X11 BUT because of [1] the Latte experience is broken
and that prevents me from doing so.

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[kwin] [Bug 382219] Touch screen swipe gestures interferes with Latte dock's ability to show itself if hidden (even without a touch screen).

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=382219

--- Comment #2 from libookami.p...@openmailbox.org ---
I see, thanks a lot for your answer.

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[kwin] [Bug 382219] Touch screen swipe gestures interferes with Latte dock's ability to show itself if hidden (even without a touch screen).

[Martin Flöser]

https://bugs.kde.org/show_bug.cgi?id=382219

Martin Flöser  changed:

   What|Removed |Added

 Resolution|--- |INVALID
 Status|UNCONFIRMED |RESOLVED

--- Comment #1 from Martin Flöser  ---
Latte dock should use the functionality provided by KWin for auto hiding on
screen edges.

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