1 files changed, 56 insertions, 0 deletions
diff --git a/extra/kdebase-workspace/fix-freeze.patch b/extra/kdebase-workspace/fix-freeze.patch
new file mode 100644
index 000000000..1926baebc
--- /dev/null
+++ b/extra/kdebase-workspace/fix-freeze.patch
@@ -0,0 +1,56 @@
+diff --git a/kwin/tabbox/clientmodel.cpp b/kwin/tabbox/clientmodel.cpp
+index 9591bab..a67d979 100644
+--- a/kwin/tabbox/clientmodel.cpp
++++ b/kwin/tabbox/clientmodel.cpp
+@@ -188,7 +188,7 @@ void ClientModel::createClientList(int desktop, bool partialReset)
+     switch(tabBox->config().clientSwitchingMode()) {
+     case TabBoxConfig::FocusChainSwitching: {
+         TabBoxClient* c = start;
+-        if (!c) {
++        if (!tabBox->isInFocusChain(c)) {
+             QSharedPointer<TabBoxClient> firstClient = tabBox->firstClientFocusChain().toStrongRef();
+             if (firstClient) {
+                 c = firstClient.data();
+diff --git a/kwin/tabbox/tabbox.cpp b/kwin/tabbox/tabbox.cpp
+index d96d0bd..7a08d37 100644
+--- a/kwin/tabbox/tabbox.cpp
++++ b/kwin/tabbox/tabbox.cpp
+@@ -112,6 +112,14 @@ QWeakPointer< TabBoxClient > TabBoxHandlerImpl::firstClientFocusChain() const
+     }
+ }
+ 
++bool TabBoxHandlerImpl::isInFocusChain(TabBoxClient *client) const
++{
++    if (TabBoxClientImpl *c = static_cast<TabBoxClientImpl*>(client)) {
++        return Workspace::self()->globalFocusChain().contains(c->client());
++    }
++    return false;
++}
++
+ int TabBoxHandlerImpl::nextDesktopFocusChain(int desktop) const
+ {
+     return m_tabBox->nextDesktopFocusChain(desktop);
+diff --git a/kwin/tabbox/tabbox.h b/kwin/tabbox/tabbox.h
+index 6652f93..bba0b39 100644
+--- a/kwin/tabbox/tabbox.h
++++ b/kwin/tabbox/tabbox.h
+@@ -52,6 +52,7 @@ public:
+     virtual QString desktopName(int desktop) const;
+     virtual QWeakPointer< TabBoxClient > nextClientFocusChain(TabBoxClient* client) const;
+     virtual QWeakPointer< TabBoxClient > firstClientFocusChain() const;
++    virtual bool isInFocusChain (TabBoxClient* client) const;
+     virtual int nextDesktopFocusChain(int desktop) const;
+     virtual int numberOfDesktops() const;
+     virtual TabBoxClientList stackingOrder() const;
+diff --git a/kwin/tabbox/tabboxhandler.h b/kwin/tabbox/tabboxhandler.h
+index 7abddfc..d9a6122 100644
+--- a/kwin/tabbox/tabboxhandler.h
++++ b/kwin/tabbox/tabboxhandler.h
+@@ -119,6 +119,7 @@ public:
+      * @since 4.9.1
+      **/
+     virtual QWeakPointer<TabBoxClient> firstClientFocusChain() const = 0;
++    virtual bool isInFocusChain(TabBoxClient* client) const = 0;
+     /**
+     * @param client The client whose desktop name should be retrieved
+     * @return The desktop name of the given TabBoxClient. If the client is