This seems like a more proper fix for the flickering issue in the
sliding popups effect. The problem is that slidingpopups grabs the
window in windowClosed, the fade effect checks it there, which makes
it racy.
In my tests, I've not seen this problem with the WindowAddedGrab, but
as far as I understand, the problem may well be present there as well.
(And my proposed trick doesn't work.) I've not seen this happening in my
debugging, however. The problem there is also less visible since the
transparency curves go into the same direction, and are more "in line
with each other".
So, fix: Move the setData(WindowClosedGrabRole, ...) call from
windowClosed into windowAdded, which makes sure it's set whenever the
window goes away.
REVIEW:115903
BUG:329991
This fixes the sliding popups losing their contrast effect when
animating, less flicker.
In this patch, we temporarily force the contrast effect on, but only if
it hasn't been explicitely disabled. As soon as the animation stops, the
force flag is disabled again. For disappearing windows, we just set the
flag in the same way, but skip over the bookkeeping, since the window is
going to be deleted, anyway.
REVIEW:115902
Without setting the property, Plasma's panel and dialogs lose the
backgroundcontrast effect during slides, which makes them flicker.
As the panel is shown on screen all the time, this is quite a visible
bug. To fix this, when the slide effect is started, we check for window
types and properties of each window, and force the blur flag on if it's
unset.
If the background contrast flag is set to false, we leave the window
alone assuming that there's a reason to force it off. Windows that
are newly added during the slide get the same treatment, so something
popping up while sliding (such as the desktop switch OSD) also gets
the background effect applied.When the effect stops or is interupted, we
unset what we've set, and clean up our internal bookkeeping.
Thanks Martin and Thomas for the thorough review!
REVIEW:115857
Just using KWindowInfo ctor. In one case in appmenu two usages of
KWindowInfo are merged into one KWindowInfo. And in KWindowList a
usage of adding the KWindowInfos into a list got removed.
Use base_width/base_height if provided by the application and fallback to
min_width/min_height only if not (according to ICCCM 4.1.2.3).
This fixes long standing bug with shrinking gnome-terminal window.
REVIEW: 115396
Problem description: if a window decoration is in the screenedge
(not really unlikely for maximized windows) we either did not get
mouse events to the decoration or the screenedge window. E.g. the
enter event didn't reach the approach window which means it doesn't
get unmapped and thus the motion events in that area are not passed
to the decoration below. The same happened for the screenedge window,
the enter event was just not delivered if there is a window decoration
in the edge.
To solve this problem we listen for motion events in the approach and
the edge window and pass them from the event filter to the screen edges.
If one of our windows contains that the position of the motion event
we trigger the edge just in the same way as we do with the enter event.
