The main advantage of SPDX license identifiers over the traditional
license headers is that it's more difficult to overlook inappropriate
licenses for kwin, for example GPL 3. We also don't have to copy a
lot of boilerplate text.
In order to create this change, I ran licensedigger -r -c from the
toplevel source directory.
Right now KWin moves minimized windows to the end of the task switcher's
ordering. However this is a rather confusing and undocumented behavior
that explicitly overrides the user's chosen sort ordering, be it
"Recently used" or "Stacking order". This makes it a hidden magic behavior
of the type that is at risk of being more annoying than useful.
This commit removes the special handling and lets minimized windows live
in the appropriate order in the task switcher.
If AbstractClient::setFrameGeometry() is called from a slot connected
directly to the frameGeometryChanged() signal, then is there a good
chance that kwin will fall into an infinite recursion. However, that's
the case with only X11 and internal clients.
The root cause of the infinite recursion is that both X11Client and
InternalClient compare the new geometry against the geometry before
update blocking. In order to fix the bug, we simply need to ensure that
updateGeometryBeforeUpdateBlocking() has been called before we start
emitting the frameGeometryChanged() signal.
Furthermore, a couple of tests were added to ensure that we won't hit
this subtle bug again.
The new signal can be useful if one wants to watch a toplevel for buffer
geometry updates. This can be especially useful for input related code
because the position of the upper left corner of the main surface is used
to compute the input transformation matrix.
We may call setActive() on a window that is being deleted. We cannot
guarantee that at that moment the X11 window or the Wayland surface is
still valid. So, the best course of actions is to do nothing.
BUG: 424255
In most cases, we don't need to react to client geometry changes, but in
code that deals with server-side window decorations, we need to react to
client geometry changes. The problem is that frame and client geometry
updates are not correlated even though there is a connection between the
frame geometry and the client geometry.
This change introduces the client geometry in the Toplevel class in order
to allow monitoring client geometry updates from DecoratedClientImpl.
Summary:
This change splits the XdgShellClient class to better match existing
abstractions in the xdg-shell protocol and fix a few issues related to
sending configure events.
In the new client classes, configure events are handled differently.
Instead of blocking configure events, we try to send them as late as
possible. Delaying configure events will let us merge changeMaximize()
for X11 clients and Wayland clients and it also fixes the bug where
we don't send the final configure event when user has finished resizing
a window.
Given that configure events are not sent immediately, XdgSurfaceClient
keeps the last requested frame geometry and the last requested client
geometry.
This patch doesn't intend to fix all issues in kwin's implementation of
the xdg-shell protocol. For example, we still handle surface unmapping
very poorly.
Test Plan: Tests pass.
Reviewers: #kwin
Subscribers: kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D27861
Summary:
Allows AbstractClient::m_desktopFileName be an absolute path, which is
used by tests.
Test Plan: Test passes, other things still work, including telegram.
Reviewers: #kwin, zzag
Reviewed By: #kwin, zzag
Subscribers: kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D29758
Summary:
The code we have that adds .desktop at the end of the resource name did not take
into account that it might be the case that the application ends with .desktop
like it happens on telegram's desktop client
This patch looks for the file instead of just checking the name to account for
it. Otherwise the look up happens in KConfig.
Fixesflathub/org.telegram.desktop#27 on github
Test Plan: Tested locally, works.
Reviewers: #plasma, #kwin, ngraham
Reviewed By: ngraham
Subscribers: kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D29728
Summary:
In order to allow shading wayland clients, this change moves core shade
code from X11Client to AbstractClient.
Test Plan: Shading still works on X11.
Reviewers: #kwin, cblack
Reviewed By: cblack
Subscribers: cblack, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D29512
Summary:
As is KWin only had 1 Cursor which was a singleton. This made it impossible for
us to properly implement the tablet (as in drawing tablets) support and show where
we're drawing.
This patch makes it possible to have different Cursors in KWin, it makes all the
current code still follow the mouse but the tablet can still render a cursor.
Test Plan: Tests pass, been using it and works as well as before but with beautiful tablet cursors.
Reviewers: #kwin, cblack, davidedmundson
Reviewed By: #kwin, cblack, davidedmundson
Subscribers: davidedmundson, cblack, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D28155
Summary:
Prefer virtual methods that take QRect and QSize rather than multi-int versions.
Makes for clearer API and reduces the amount of code that was taking all of the
components and turn it into a class.
Reviewers: #kwin, zzag
Reviewed By: #kwin, zzag
Subscribers: zzag, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D28283
Summary:
By the time AbstractClient::setupWindowManagementInterface() is called,
it's possible for a window to already have an application menu, and not update them
afterwards.
Reviewers: #kwin, zzag
Reviewed By: #kwin, zzag
Subscribers: kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D28150
Summary:
We have duplicated code in InternalClient and XdgShellClient to create
decorations. In order to get rid of the code duplication, this change
introduces a method that AbstractClient subclasses can call to create
a window decoration.
Test Plan: Tests pass.
Reviewers: #kwin, apol
Reviewed By: apol
Subscribers: apol, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D27822
Summary:
Currently, we have only one shell client type - XdgShellClient. We use
it when we are dealing with Wayland clients. But it isn't really a good
idea because we may need to support shell surfaces other than xdg-shell
ones, for example input panel surfaces.
In order to make kwin more extensible, this change replaces all usages
of the XdgShellClient class with the AbstractClient class.
Test Plan: Existing tests pass.
Reviewers: #kwin, davidedmundson
Reviewed By: #kwin, davidedmundson
Subscribers: davidedmundson, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D27778
Summary:
Clarify that AbstractClient::minSize() and AbstractClient::maxSize()
specify the minimum and the maximum client size.
Reviewers: #kwin, davidedmundson
Reviewed By: #kwin, davidedmundson
Subscribers: kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D26829
Summary:
Currently, there are a couple of issues with sizeForClientSize(). First
of all, we have a method called clientSizeToFrameSize() which does similar
thing except applying geometry constraints and checking window rules. The
other issue is that sizeForClientSize() is doing a bit too much, it checks
window rules, it applies a bunch of geometry constrains. Sometimes it
does not perform conversion between client sizes and frame sizes!
This change attempts to address those issues by replacing sizeForClientSize
with two similar methods and changing semantics of some methods of the
X11Client class.
The most significant difference between sizeForClientSize() and the new
methods is that neither constrainClientSize() nor constrainFrameSize()
check window rules. This is up to users of those methods. In many places,
we don't have to check window rules because we check isResizable(),
which returns false if the frame size is enforced by a window rule.
Reviewers: #kwin, davidedmundson
Reviewed By: #kwin, davidedmundson
Subscribers: davidedmundson, romangg, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D26828
Summary:
Otherwise the content overflows the frame when scrolling.
QQC2 scrollview docs say "ScrollView does not automatically clip its contents. If it is not used as a full-screen item, you should consider setting the clip property to true"
Test Plan:
Before:
{F8121150}
After:
{F8121152}
Reviewers: #kwin, #plasma, ngraham
Reviewed By: ngraham
Subscribers: ngraham, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D27558
Summary:
Otherwise the content overflows the frame when scrolling.
QQC2 scrollview docs say "ScrollView does not automatically clip its contents. If it is not used as a full-screen item, you should consider setting the clip property to true"
Test Plan:
Before:
{F8121150}
After:
{F8121152}
Reviewers: #kwin, #plasma, ngraham
Reviewed By: ngraham
Subscribers: ngraham, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D27558
Summary:
We need to schedule a workspace repaint in minimize() to ensure that
there are no ghost windows on Wayland.
Test Plan:
Make sure that window minimization effects are disabled,
minimize a window. Without this patch, you are going to see a ghost
window. With this patch, no ghost window.
Reviewers: #kwin, davidedmundson, apol
Reviewed By: #kwin, davidedmundson, apol
Subscribers: apol, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D27516
Summary:
Not all Client classes have support for the maximized mode. Therefore,
it can be made opt-in to reduce the amount of plumbed methods.
Unfortunately, there a few places, which don't have any connection with
the maximized mode, where AbstractClient::geometryRestore() is used, so
it cannot be made 100% optional at the moment.
Reviewers: #kwin
Subscribers: kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D27169
Summary:
In long term, we want to split XdgShellClient into several classes. One
class for xdg-toplevel clients, and the other one for xdg-popup clients.
xdg-popup clients are much simpler than xdg-toplevel clients, they can't
be maximized or shown in full screen mode, they can't be interactively
moved on the screen, and so on. In the end, we will have to plumb many
pure virtual methods, which looks a bit ugly.
This change makes support for the minimized state in AbstractClient
optional so we don't have to add those no-op methods and keep code more
or less "clean."
Test Plan: Compiles.
Reviewers: #kwin
Subscribers: kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D27163
Summary:
In long term, we want to split XdgShellClient into several classes. One
class for xdg-toplevel clients, and the other one for xdg-popup clients.
xdg-popup clients are much simpler than xdg-toplevel clients, they can't
be maximized or shown in full screen mode, they can't be interactively
moved on the screen, and so on. In the end, we will have to plumb many
pure virtual methods, which looks a bit ugly.
This change makes support for full screen mode in AbstractClient optional
so we don't have to add those no-op methods and keep code more or less
"clean."
Test Plan: Compiles.
Reviewers: #kwin
Subscribers: kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D27162
Summary:
Nothing special about this patch except of the removal of code that forces
_NET_WM_STATE_BELOW and _NET_WM_STATE_ABOVE. If the client window is
compliant with the EWMH spec, then _NET_WM_STATE_BELOW and _NET_WM_STATE_ABOVE
will be in sync with keepBelow() and keepAbove(), respectively.
Subscribers: kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D27120
Summary:
Currently we have two signals that are emitted when the Toplevel's geometry
changes - geometryShapeChanged() and geometryChanged(). The former signal
is used primarily to invalidate cached window quads and the latter is
sort of emitted when the frame geometry changes. But it's not that easy. We
have a bunch of connects that link those signals together...
The worst part about all of this is that the window quads cache gets
invalidated every time a geometry update occurs, for example when user
moves a window around on the screen.
This change introduces a new signal and deprecates the existing geometryChanged
signal. frameGeometryChanged is similar to geometryChanged except that it is
emitted when an _actual_ geometry change has occurred.
We do still emit geometryShapeChanged signal. However, in long term, we
need to get rid of this signal or come up with something that makes sense
and doesn't require us to waste computational resources.
Reviewers: #kwin, davidedmundson
Reviewed By: #kwin, davidedmundson
Subscribers: davidedmundson, romangg, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D26863
Summary:
If the frame geometry is changed in any away, for example if the client
has been moved, resized, or both, setFrameGeometry() will schedule a layer
repaint for the visible geometry before and after the update.
When there is a resize effect, we only send requests to the client window
to render contents at the new size. setFrameGeometry() is not called and
therefore no layer repaints are scheduled.
Only the resize effect knows what parts of the window or the screen must
be repainted and thus it must be responsible for scheduling repaints.
A full repaint in AbstractClient::performMoveResize() is scheduled mostly
for historical reasons.
Reviewers: #kwin, davidedmundson
Reviewed By: #kwin, davidedmundson
Subscribers: davidedmundson, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D27167
Summary:
QDateTime::fromMSecSinceEpoch uses Qt::LocalTime by default. This involves an
expensive localtime conversion. So instead force things to use UTC, as there
is no need for timezone information when tracking durations.
This is especially noticeable on Bedrock Linux, which uses a Fuse mounted
/etc, which is slower than a plain /etc and causes quite some slowdown there.
See https://github.com/bedrocklinux/bedrocklinux-userland/issues/140 for
details.
Test Plan: The screenedge unit test still passes.
Reviewers: #kwin, davidedmundson
Reviewed By: #kwin, davidedmundson
Subscribers: zzag, anthonyfieroni, davidedmundson, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D27114
Summary:
Qt has its own thing where a type might also have corresponding list
alias, e.g. QObject and QObjectList, QWidget and QWidgetList. I don't
know why Qt does that, maybe for some historical reasons, but what
matters is that we copy this pattern here in KWin. While this pattern
might be useful with some long list types, for example
QList<QWeakPointer<TabBoxClient>> TabBoxClientList
in general, it causes more harm than good. For example, we've got two
new client types, do we need corresponding list typedefs for them? If
no, why do we have ClientList and so on?
Another problem with these typedefs is that you need to include utils.h
header in order to use them. A better way to handle such things is to
just forward declare a client class (if that's possible) and use it
directly with QList or QVector. This way translation units don't get
"bloated" with utils.h stuff for no apparent reason.
So, in order to make code more consistent and easier to follow, this
change drops some of our custom typedefs. Namely ConstClientList,
ClientList, DeletedList, UnmanagedList, ToplevelList, and GroupList.
Test Plan: Compiles.
Reviewers: #kwin
Subscribers: kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D24950
Summary:
KDE is known for having a strong view on the client-side decorations vs
server-side decorations issue. The main argument raised against CSD is
that desktop will look less consistent when clients start drawing window
decorations by themselves, which is somewhat true. It all ties to how
well each toolkit is integrated with the desktop environment.
KDE doesn't control the desktop market on Linux. Another big "player"
is GNOME. Both KDE and GNOME have very polarized views on in which
direction desktop should move forward. The KDE community is pushing more
toward server-side decorations while the GNOME community is pushing
more toward client-side decorations. Both communities have developed
great applications and it's not rare to see a GNOME application being
used in KDE Plasma. The only problem is that these different views are
not left behind the curtain and our users pay the price. Resizing GTK
clients in Plasma became practically impossible due to resize borders
having small hit area.
When a client draws its window decoration, it's more likely that it also
draws the drop-shadow around the decoration. The compositor must know
the extents of the shadow so things like snapping and so on work as
expected. And here lies the problem... While the xdg-shell protocol has
a way to specify such things, the NetWM spec doesn't have anything like
that. There's _GTK_FRAME_EXTENTS in the wild, however the problem with
it is that it's a proprietary atom, which is specific only to GTK apps.
Due to that, _GTK_FRAME_EXTENTS wasn't implemented because implementing
anything like that would require major changes in how we think about
geometry.
Recent xdg-shell window geometry patches adjusted geometry abstractions
in kwin to such a degree that it's very easy to add support for client
side decorated clients on X11. We just have to make sure that the
X11Client class provides correct buffer geometry and frame geometry when
the gtk frame extents are set.
Even though the X11 code is feature frozen, I still think it's worth
to have _GTK_FRAME_EXTENTS support in kwin because it will fix the resize
issues. Also, because KWin/Wayland is unfortunately far from becoming
default, it will help us with testing some implementation bits of the
window geometry from xdg-shell.
BUG: 390550
FIXED-IN: 5.18.0
Test Plan:
Things like quick tiling, maximizing, tiling scripts and so on work as
expected with GTK clients.
Reviewers: #kwin, davidedmundson
Reviewed By: #kwin, davidedmundson
Subscribers: cblack, trmdi, kwin
Tags: #kwin
Differential Revision: https://phabricator.kde.org/D24660
Vlad Zahorodnii