Otherwise, when using Alt as modifier for moving windows, the tabbox window
cannot be clicked because Alt is held down during Alt+Tab, which would try
to initiate a window move but the window isn't actually movable, so ends up
doing nothing.
It also allows to interact with Plasma popups, which are also immovable,
while the modified key is pressed.
Currently when we move the mouse the one render loop triggers a repaint.
When the cursor layer needs a new update we end up in the compositor
repainting the main content.
Even though painting should mostly no-op it still goes through all
existing items and effects to collect damage, still potentially making
the GL context current which could stall. A waste when we know we
haven't got anything to do. It's enough to cause noticable mouse lag on
some hardware.
Co-authored-by: Vlad Zahorodnii <vlad.zahorodnii@kde.org>
It never belonged in the OutputBackend, but we also didn't have a better
place when the relevant code had been added.
With the introduction of graphics buffer allocators, it's no longer the
case.
Some wheels might send fewer or more than 120 fractions per step.
In order to always register a discrete step, we count these as a step
already at half(120/2) of one mouse wheel step in stepping mode.
The timer resets the initial value of the step because the mouse
can switch between free spin and stepping mode.
When transitioning from free spin to stepping mode,
the mouse calibrates its wheel position to the starting point
and generates some fractions.
As a result, our starting position can appear far from the zero point,
potentially causing us to count two(or zero) steps instead of one.
Additionally, the compositor might start when the mouse is in
free spin mode(or the mouse could be connected in free spin mode),
leading to the same issue.
https://gitlab.freedesktop.org/libinput/libinput/-/issues/814
At the moment, popups are assigned to the current desktop and activity.
However, a toplevel can be on several virtual desktops. If user switches
between virtual desktops and the active window does not change, it can
result in not being able to dismiss or open new popups depending on the
toolkit implementation details.
To prevent that, keep popups on same virtual desktops as their parents.
BUG: 398628
Removes the dependency on Plasma Framework from the KCMs.
This won't use the current Plasma theme but always the default one.
However, the monitor graphic hasn't really been used anywhere else
anymore (it used to be in e.g. the wallpaper settings in Plasma 4),
so I think this is alright.
The buffer transform specifies a transform from the buffer coordinate
space to the surface coordinate space.
The inverse buffer transform specifies a transform from the surface
coordinate space to the buffer coordinate space.
OutputTransform::map(QRect, QSizeF) expects both arguments to be in the
same coordinate space.
In case of SurfaceInterfacePrivate::computeSourceBox(), both should be
scaled surface coordinates so bufferTransform.inverted() maps the source
rect to the proper buffer coordinate space.
Ensures that e.g. context menus move about with their parents when they
get moved around.
However, as per spec don't re-constrain the window when its positioner
is non-reactive. This change calculates the offset from its parent window
once initially and places the window relative to that whenever the parent
moves.
Only when the positioner is reactive, will it recalculate the placement fully.
BUG: 461994
XdgPopupWindow disregards it for the most part anyway and asks workspace
for the placement area directly. Also gives XdgPopupWindow more control
on the placement when it's all contained inside of it for the upcoming commit.
Selection acts as an abstraction around multiple X11Sources, when we get
a new source we asyncronously emit that x11OffersChanged when it
completes.
If the selection is lost, we were just deleting the source, without
notifying other parts.
XwlDataSource is the datasource that SeatInterface knows about. We need
to delete this when the X11 connection is no longer valid. SeatInterface
will update the selection when the XwmlDataSource is deleted if it's the
active selection.
The hook is introduced as updating the selection in Clipboard will cause
Selection to delete m_xSource which gets messy.
BUG: 449909
