kde-plasma/kwin: Fix runtime crashes

Backported from 5.14 branch.

Package-Manager: Portage-2.3.51, Repoman-2.3.12
Signed-off-by: Andreas Sturmlechner <asturm@gentoo.org>

2 files changed, 209 insertions, 0 deletions

diff --git a/kde-plasma/kwin/files/kwin-5.14.3-resizewindows-crash.patch b/kde-plasma/kwin/files/kwin-5.14.3-resizewindows-crash.patch
new file mode 100644
index 000000000000..37963c8395c5
--- /dev/null
+++ b/kde-plasma/kwin/files/kwin-5.14.3-resizewindows-crash.patch
@@ -0,0 +1,72 @@
+From 406b70b04e093c13faf763e2d885797ae037d806 Mon Sep 17 00:00:00 2001
+From: Vlad Zagorodniy <vladzzag@gmail.com>
+Date: Mon, 12 Nov 2018 17:45:14 +0200
+Subject: [wayland] Don't crash when resizing windows
+
+Summary:
+If you resize a decorated client by using the resize user action(press
+Alt + F3 > More Actions > Resize), then KWin will crash because it gets
+stuck in an infinite loop (AbstractClient::performMoveResize <->
+ShellClient::setGeometry).
+
+Here's how KWin gets stuck in that loop:
+* when you finish resizing the client, AbstractClient::keyPressEvent
+  will call AbstractClient::finishMoveResize;
+* the first thing that finishMoveResize does is block geometry updates,
+  then it does some clean up (e.g. reset the value of isMoveResize(), etc),
+  updates the geometry of the client and when it's done, it will emit
+  clientFinishUserMoveResized signal;
+* when PointerInputRedirection notices that signal, it will call
+  processDecorationMove on the client, which in its turn will indirectly
+  call AbstractClient::startMoveResize;
+* when it's time to go back to AbstractClient::keyPressEvent, geometry
+  updates are unblocked and if there are any pending geometry updates,
+  then ShellClient::setGeometry will be called;
+* ShellClient::setGeometry will eventually call ShellClient::doSetGeometry;
+* ShellClient::doSetGeometry will call AbstractClient::performMoveResize
+  because AbstractClient::processDecorationMove indirectly called
+  AbstractClient::startMoveResize;
+* AbstractClient::performMoveResize calls ShellClient::setGeometry;
+* (at this point, KWin got stuck in the infinite loop)
+
+This change swaps setMoveResizePointerButtonDown and finishMoveResize,
+so processDecorationMove won't indirectly call startMoveResize.
+
+BUG: 397577
+FIXED-IN: 5.14.4
+
+Reviewers: #kwin, davidedmundson
+
+Reviewed By: #kwin, davidedmundson
+
+Subscribers: kwin
+
+Tags: #kwin
+
+Differential Revision: https://phabricator.kde.org/D16846
+---
+ abstract_client.cpp | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/abstract_client.cpp b/abstract_client.cpp
+index b4628f2..ed72b9c 100644
+--- a/abstract_client.cpp
++++ b/abstract_client.cpp
+@@ -1457,13 +1457,13 @@ void AbstractClient::keyPressEvent(uint key_code)
+     case Qt::Key_Space:
+     case Qt::Key_Return:
+     case Qt::Key_Enter:
+-        finishMoveResize(false);
+         setMoveResizePointerButtonDown(false);
++        finishMoveResize(false);
+         updateCursor();
+         break;
+     case Qt::Key_Escape:
+-        finishMoveResize(true);
+         setMoveResizePointerButtonDown(false);
++        finishMoveResize(true);
+         updateCursor();
+         break;
+     default:
+-- 
+cgit v0.11.2
diff --git a/kde-plasma/kwin/files/kwin-5.14.3-virtualdesktop-crash.patch b/kde-plasma/kwin/files/kwin-5.14.3-virtualdesktop-crash.patch
new file mode 100644
index 000000000000..4e480a06be8e
--- /dev/null
+++ b/kde-plasma/kwin/files/kwin-5.14.3-virtualdesktop-crash.patch
@@ -0,0 +1,137 @@
+From ad28da84e78c7eb7ff1e608c4819707b2142daea Mon Sep 17 00:00:00 2001
+From: Vlad Zagorodniy <vladzzag@gmail.com>
+Date: Mon, 5 Nov 2018 14:59:42 +0200
+Subject: [effects/slidingpopups] Don't crash when sliding virtual desktops
+
+Summary:
+If you switch virtual desktops while krunner is sliding in, then
+depending on whether your distro strips assert statements away,
+KWin can crash.
+
+The reason why it crashes is the sliding popups effect tries to unref
+deleted windows that it hasn't referenced before (if there is an active
+full screen effect, then popups won't be slided out, which in its turn
+means that we won't reference deleted windows). So, in the end, the
+refcount of those windows can be -1. That triggers an assert statement
+in the destructor of the Deleted class, which checks whether the
+refcount is equal to 0.
+
+Popups are not slided while there is an active full screen effect because
+we don't know what the full screen effect does.
+
+This patch adjusts the sliding popups effect so it stops all active
+animations when user switches virtual desktops or when a full screen
+effect kicks in. We need to do that so the effect won't try to
+unreference windows in postPaintWindow.
+
+Visually, it doesn't look quite nice, but for now that's good enough.
+A proper fix would be more complex: we would need to make sure that
+full screen effects ignore sliding popups (and also maybe docks) and
+perform some input redirection.
+
+BUG: 400170
+FIXED-IN: 5.14.4
+
+Test Plan: I'm not able anymore to reproduce bug 400170.
+
+Reviewers: #kwin, graesslin
+
+Reviewed By: #kwin, graesslin
+
+Subscribers: davidedmundson, graesslin, kwin
+
+Tags: #kwin
+
+Differential Revision: https://phabricator.kde.org/D16731
+---
+ effects/slidingpopups/slidingpopups.cpp | 22 ++++++++++++++++++++++
+ effects/slidingpopups/slidingpopups.h   |  6 +++---
+ 2 files changed, 25 insertions(+), 3 deletions(-)
+
+diff --git a/effects/slidingpopups/slidingpopups.cpp b/effects/slidingpopups/slidingpopups.cpp
+index a104a5c..066b2a3 100644
+--- a/effects/slidingpopups/slidingpopups.cpp
++++ b/effects/slidingpopups/slidingpopups.cpp
+@@ -3,6 +3,7 @@
+  This file is part of the KDE project.
+ 
+ Copyright (C) 2009 Marco Martin notmart@gmail.com
++Copyright (C) 2018 Vlad Zagorodniy <vladzzag@gmail.com>
+ 
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+@@ -53,6 +54,11 @@ SlidingPopupsEffect::SlidingPopupsEffect()
+             m_atom = effects->announceSupportProperty(QByteArrayLiteral("_KDE_SLIDE"), this);
+         }
+     );
++    connect(effects, qOverload<int, int, EffectWindow *>(&EffectsHandler::desktopChanged),
++            this, &SlidingPopupsEffect::stopAnimations);
++    connect(effects, &EffectsHandler::activeFullScreenEffectChanged,
++            this, &SlidingPopupsEffect::stopAnimations);
++
+     reconfigure(ReconfigureAll);
+ }
+ 
+@@ -434,6 +440,22 @@ void SlidingPopupsEffect::slideOut(EffectWindow *w)
+     w->addRepaintFull();
+ }
+ 
++void SlidingPopupsEffect::stopAnimations()
++{
++    for (auto it = m_animations.constBegin(); it != m_animations.constEnd(); ++it) {
++        EffectWindow *w = it.key();
++
++        if (w->isDeleted()) {
++            w->unrefWindow();
++        } else {
++            w->setData(WindowForceBackgroundContrastRole, QVariant());
++            w->setData(WindowForceBlurRole, QVariant());
++        }
++    }
++
++    m_animations.clear();
++}
++
+ bool SlidingPopupsEffect::isActive() const
+ {
+     return !m_animations.isEmpty();
+diff --git a/effects/slidingpopups/slidingpopups.h b/effects/slidingpopups/slidingpopups.h
+index 821640a..32e8fb5 100644
+--- a/effects/slidingpopups/slidingpopups.h
++++ b/effects/slidingpopups/slidingpopups.h
+@@ -3,6 +3,7 @@
+  This file is part of the KDE project.
+ 
+ Copyright (C) 2009 Marco Martin notmart@gmail.com
++Copyright (C) 2018 Vlad Zagorodniy <vladzzag@gmail.com>
+ 
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+@@ -49,8 +50,6 @@ public:
+ 
+     static bool supported();
+ 
+-    // TODO react also on virtual desktop changes
+-
+     int slideInDuration() const;
+     int slideOutDuration() const;
+ 
+@@ -62,6 +61,7 @@ private Q_SLOTS:
+ 
+     void slideIn(EffectWindow *w);
+     void slideOut(EffectWindow *w);
++    void stopAnimations();
+ 
+ private:
+     void setupAnimData(EffectWindow *w);
+@@ -81,7 +81,7 @@ private:
+         AnimationKind kind;
+         TimeLine timeLine;
+     };
+-    QHash<const EffectWindow*, Animation> m_animations;
++    QHash<EffectWindow *, Animation> m_animations;
+ 
+     enum class Location {
+         Left,
+-- 
+cgit v0.11.2