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-rw-r--r--desktop-plasma/patches/kde-plasma/kwin/0001-tabbox-Correctly-reset-an-invalid-index.patch55
-rw-r--r--desktop-plasma/patches/kde-plasma/kwin/0002-tabbox-Only-skip-active-window-if-it-is-in-the-clien.patch121
-rw-r--r--desktop-plasma/patches/kde-plasma/kwin/0003-autotests-Add-tabbox-test-for-when-the-client-is-out.patch165
3 files changed, 341 insertions, 0 deletions
diff --git a/desktop-plasma/patches/kde-plasma/kwin/0001-tabbox-Correctly-reset-an-invalid-index.patch b/desktop-plasma/patches/kde-plasma/kwin/0001-tabbox-Correctly-reset-an-invalid-index.patch
new file mode 100644
index 0000000..f188b33
--- /dev/null
+++ b/desktop-plasma/patches/kde-plasma/kwin/0001-tabbox-Correctly-reset-an-invalid-index.patch
@@ -0,0 +1,55 @@
+From ce4a56a522bf073512878392f7bc7e6a833ebfe3 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Wolfgang=20M=C3=BCller?= <wolf@oriole.systems>
+Date: Wed, 23 Oct 2024 16:49:21 +0200
+Subject: [PATCH 1/3] tabbox: Correctly reset an invalid index
+
+When resetting the tabbox before making it visible, we want to set the
+index to the active window as our starting point. It might happen that
+the active window is not part of the selection model, for example when
+the tabbox is showing only windows on other desktops or activities. If
+this happens the index is invalid, so we want to take care to set the
+index to the first item instead.
+
+Currently we handle this by first attempting to set the index to the
+active window with setCurrentClient() and then afterwards checking
+whether currentIndex() is valid. However, setCurrentIndex() only changes
+the index if it is valid, so the index is never changed and remains at
+its previous valid position. This makes the following check with
+currentIndex() irrelevant and the index is never reset to the first
+item.
+
+What this means in practice is that a tabbox whose client list does not
+contain the active window initially has whichever client selected that
+corresponds to the index set in a previous invocation of tabbox.
+
+To fix this, look up the index of the active window first and only set
+the current index to it if it is valid. Otherwise set the current index
+to the first item.
+---
+ src/tabbox/tabbox.cpp | 10 ++++------
+ 1 file changed, 4 insertions(+), 6 deletions(-)
+
+diff --git a/src/tabbox/tabbox.cpp b/src/tabbox/tabbox.cpp
+index 42d80f77d3..f3bbfa99bc 100644
+--- a/src/tabbox/tabbox.cpp
++++ b/src/tabbox/tabbox.cpp
+@@ -424,12 +424,10 @@ void TabBox::reset(bool partial_reset)
+ {
+ m_tabBox->createModel(partial_reset);
+ if (!partial_reset) {
+- if (Workspace::self()->activeWindow()) {
+- setCurrentClient(Workspace::self()->activeWindow());
+- }
+- // it's possible that the active client is not part of the model
+- // in that case the index is invalid
+- if (!m_tabBox->currentIndex().isValid()) {
++ const QModelIndex activeIndex = m_tabBox->index(workspace()->activeWindow());
++ if (activeIndex.isValid()) {
++ setCurrentIndex(activeIndex);
++ } else {
+ setCurrentIndex(m_tabBox->first());
+ }
+ } else {
+--
+2.47.0
+
diff --git a/desktop-plasma/patches/kde-plasma/kwin/0002-tabbox-Only-skip-active-window-if-it-is-in-the-clien.patch b/desktop-plasma/patches/kde-plasma/kwin/0002-tabbox-Only-skip-active-window-if-it-is-in-the-clien.patch
new file mode 100644
index 0000000..1ed9912
--- /dev/null
+++ b/desktop-plasma/patches/kde-plasma/kwin/0002-tabbox-Only-skip-active-window-if-it-is-in-the-clien.patch
@@ -0,0 +1,121 @@
+From 52afb2a52b17b82fd85150f40200b186517e49f4 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Wolfgang=20M=C3=BCller?= <wolf@oriole.systems>
+Date: Wed, 23 Oct 2024 18:45:46 +0200
+Subject: [PATCH 2/3] tabbox: Only skip active window if it is in the client
+ list
+
+When invoking the tabbox we initially advance the selection by one,
+assuming the first item in the client list is the active window which
+we'd like to skip. However, since we allow the user to apply a filter to
+the clients displayed in the list, we might end up with the active
+window missing from the current client list and skipping over an
+unrelated client. When using focus chain switching this means we skip
+over the last focused window, making quick switching between two windows
+impossible.
+
+Instead of advancing the selection unconditionally, make sure not to
+advance if the client list does not contain the active window and we are
+in the initial invocation of the tabbox in navigatingThroughWindows().
+---
+ src/tabbox/tabbox.cpp | 25 +++++++++++++++++++------
+ src/tabbox/tabbox.h | 7 ++++++-
+ 2 files changed, 25 insertions(+), 7 deletions(-)
+
+diff --git a/src/tabbox/tabbox.cpp b/src/tabbox/tabbox.cpp
+index f3bbfa99bc..5d6b2cb569 100644
+--- a/src/tabbox/tabbox.cpp
++++ b/src/tabbox/tabbox.cpp
+@@ -478,6 +478,11 @@ void TabBox::setCurrentIndex(QModelIndex index, bool notifyEffects)
+ }
+ }
+
++bool TabBox::haveActiveClient()
++{
++ return m_tabBox->index(m_tabBox->activeClient()).isValid();
++}
++
+ void TabBox::show()
+ {
+ Q_EMIT tabBoxAdded(m_tabBoxMode);
+@@ -808,9 +813,7 @@ void TabBox::navigatingThroughWindows(bool forward, const QKeySequence &shortcut
+ CDEWalkThroughWindows(forward);
+ } else {
+ if (areModKeysDepressed(shortcut)) {
+- if (startKDEWalkThroughWindows(mode)) {
+- KDEWalkThroughWindows(forward);
+- }
++ startKDEWalkThroughWindows(forward, mode);
+ } else {
+ // if the shortcut has no modifiers, don't show the tabbox,
+ // don't grab, but simply go to the next window
+@@ -898,7 +901,7 @@ bool TabBox::toggleMode(TabBoxMode mode)
+ return true;
+ }
+
+-bool TabBox::startKDEWalkThroughWindows(TabBoxMode mode)
++bool TabBox::startKDEWalkThroughWindows(bool forward, TabBoxMode mode)
+ {
+ if (!establishTabBoxGrab()) {
+ return false;
+@@ -911,13 +914,19 @@ bool TabBox::startKDEWalkThroughWindows(TabBoxMode mode)
+
+ setMode(mode);
+ reset();
++
++ if (haveActiveClient()) {
++ nextPrev(forward);
++ }
++
++ delayedShow();
++
+ return true;
+ }
+
+ void TabBox::KDEWalkThroughWindows(bool forward)
+ {
+ nextPrev(forward);
+- delayedShow();
+ }
+
+ void TabBox::CDEWalkThroughWindows(bool forward)
+@@ -979,7 +988,11 @@ void TabBox::KDEOneStepThroughWindows(bool forward, TabBoxMode mode)
+ {
+ setMode(mode);
+ reset();
+- nextPrev(forward);
++
++ if (haveActiveClient()) {
++ nextPrev(forward);
++ }
++
+ if (Window *c = currentClient()) {
+ Workspace::self()->activateWindow(c);
+ shadeActivate(c);
+diff --git a/src/tabbox/tabbox.h b/src/tabbox/tabbox.h
+index ec4ca2ba28..72e43b3a2e 100644
+--- a/src/tabbox/tabbox.h
++++ b/src/tabbox/tabbox.h
+@@ -93,6 +93,11 @@ public:
+ */
+ void setCurrentClient(Window *newClient);
+
++ /**
++ * Return whether the active client is present in the client list.
++ */
++ bool haveActiveClient();
++
+ void setMode(TabBoxMode mode);
+ TabBoxMode mode() const
+ {
+@@ -228,7 +233,7 @@ private:
+ explicit TabBox(QObject *parent);
+ void loadConfig(const KConfigGroup &config, TabBoxConfig &tabBoxConfig);
+
+- bool startKDEWalkThroughWindows(TabBoxMode mode); // TabBoxWindowsMode | TabBoxWindowsAlternativeMode
++ bool startKDEWalkThroughWindows(bool forward, TabBoxMode mode); // TabBoxWindowsMode | TabBoxWindowsAlternativeMode
+ void navigatingThroughWindows(bool forward, const QKeySequence &shortcut, TabBoxMode mode); // TabBoxWindowsMode | TabBoxWindowsAlternativeMode
+ void KDEWalkThroughWindows(bool forward);
+ void CDEWalkThroughWindows(bool forward);
+--
+2.47.0
+
diff --git a/desktop-plasma/patches/kde-plasma/kwin/0003-autotests-Add-tabbox-test-for-when-the-client-is-out.patch b/desktop-plasma/patches/kde-plasma/kwin/0003-autotests-Add-tabbox-test-for-when-the-client-is-out.patch
new file mode 100644
index 0000000..7ca29af
--- /dev/null
+++ b/desktop-plasma/patches/kde-plasma/kwin/0003-autotests-Add-tabbox-test-for-when-the-client-is-out.patch
@@ -0,0 +1,165 @@
+From 31d2ac0ac4c1f6a94422dddadeb4f6199d3f42ca Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Wolfgang=20M=C3=BCller?= <wolf@oriole.systems>
+Date: Thu, 24 Oct 2024 14:09:30 +0200
+Subject: [PATCH 3/3] autotests: Add tabbox test for when the client is outside
+ the model
+
+The last two commits fix tabbox behaviour when the active client is
+missing from the client list (e.g. when the tabbox only shows windows on
+other screens, desktops, or activities). Since both commits depend on
+each other, only add the test now.
+---
+ autotests/integration/tabbox_test.cpp | 124 ++++++++++++++++++++++++++
+ 1 file changed, 124 insertions(+)
+
+diff --git a/autotests/integration/tabbox_test.cpp b/autotests/integration/tabbox_test.cpp
+index 63a2acc6ec..1ccda0cd28 100644
+--- a/autotests/integration/tabbox_test.cpp
++++ b/autotests/integration/tabbox_test.cpp
+@@ -8,6 +8,7 @@
+ */
+ #include "kwin_wayland_test.h"
+
++#include "core/outputbackend.h"
+ #include "input.h"
+ #include "pointer_input.h"
+ #include "tabbox/tabbox.h"
+@@ -38,6 +39,7 @@ private Q_SLOTS:
+ void testMoveBackward();
+ void testCapsLock();
+ void testKeyboardFocus();
++ void testActiveClientOutsideModel();
+ };
+
+ void TabBoxTest::initTestCase()
+@@ -289,5 +291,127 @@ void TabBoxTest::testKeyboardFocus()
+ QVERIFY(enteredSpy.wait());
+ }
+
++void TabBoxTest::testActiveClientOutsideModel()
++{
++#if !KWIN_BUILD_GLOBALSHORTCUTS
++ QSKIP("Can't test shortcuts without shortcuts");
++ return;
++#endif
++
++ // This test verifies behaviour when the active client is outside the
++ // client list model:
++ //
++ // 1) reset() should correctly set the index to 0 if the active window is
++ // not part of the client list.
++ // 2) the selection should not be advanced initially if the active window
++ // is not part of the client list.
++
++ const auto outputs = kwinApp()->outputBackend()->outputs();
++
++ // Initially, set up MultiScreenMode such that alt+tab will only switch
++ // within windows on the same screen.
++ KConfigGroup group = kwinApp()->config()->group(QStringLiteral("TabBox"));
++ group.writeEntry("MultiScreenMode", "1");
++ group.sync();
++ workspace()->slotReconfigure();
++
++ // Create a window on the left output
++ std::unique_ptr<KWayland::Client::Surface> leftSurface1(Test::createSurface());
++ std::unique_ptr<Test::XdgToplevel> leftShellSurface1(Test::createXdgToplevelSurface(leftSurface1.get()));
++ auto l1 = Test::renderAndWaitForShown(leftSurface1.get(), QSize(100, 50), Qt::blue);
++ l1->move(QPointF(50, 100));
++ QVERIFY(l1);
++ QVERIFY(l1->isActive());
++ QCOMPARE(l1->output(), outputs[0]);
++
++ // Create three windows on the right output
++ std::unique_ptr<KWayland::Client::Surface> rightSurface1(Test::createSurface());
++ std::unique_ptr<Test::XdgToplevel> rightShellSurface1(Test::createXdgToplevelSurface(rightSurface1.get()));
++ auto r1 = Test::renderAndWaitForShown(rightSurface1.get(), QSize(100, 50), Qt::blue);
++ r1->move(QPointF(1280 + 50, 100));
++ QVERIFY(r1);
++ QVERIFY(r1->isActive());
++ QCOMPARE(r1->output(), outputs[1]);
++ std::unique_ptr<KWayland::Client::Surface> rightSurface2(Test::createSurface());
++ std::unique_ptr<Test::XdgToplevel> rightShellSurface2(Test::createXdgToplevelSurface(rightSurface2.get()));
++ auto r2 = Test::renderAndWaitForShown(rightSurface2.get(), QSize(100, 50), Qt::red);
++ r2->move(QPointF(1280 + 50, 100));
++ QVERIFY(r2);
++ QVERIFY(r2->isActive());
++ QCOMPARE(r2->output(), outputs[1]);
++ std::unique_ptr<KWayland::Client::Surface> rightSurface3(Test::createSurface());
++ std::unique_ptr<Test::XdgToplevel> rightShellSurface3(Test::createXdgToplevelSurface(rightSurface3.get()));
++ auto r3 = Test::renderAndWaitForShown(rightSurface3.get(), QSize(100, 50), Qt::red);
++ r3->move(QPointF(1280 + 50, 100));
++ QVERIFY(r3);
++ QVERIFY(r3->isActive());
++ QCOMPARE(r3->output(), outputs[1]);
++
++ // Focus r3 such that we're on the right output
++ input()->pointer()->warp(r3->frameGeometry().center());
++ QCOMPARE(workspace()->activeOutput(), outputs[1]);
++
++ // Setup tabbox signal spies
++ QSignalSpy tabboxAddedSpy(workspace()->tabbox(), &TabBox::TabBox::tabBoxAdded);
++ QSignalSpy tabboxClosedSpy(workspace()->tabbox(), &TabBox::TabBox::tabBoxClosed);
++
++ // Press Alt+Tab, this will only show clients on the same output
++ quint32 timestamp = 0;
++ Test::keyboardKeyPressed(KEY_LEFTALT, timestamp++);
++ QCOMPARE(input()->keyboardModifiers(), Qt::AltModifier);
++ Test::keyboardKeyPressed(KEY_TAB, timestamp++);
++ Test::keyboardKeyReleased(KEY_TAB, timestamp++);
++
++ QVERIFY(tabboxAddedSpy.wait());
++ QVERIFY(workspace()->tabbox()->isGrabbed());
++
++ // Release Alt+Tab. This will have moved our index to 1 and focused r2 (the
++ // previously created window)
++ Test::keyboardKeyReleased(KEY_LEFTALT, timestamp++);
++ QCOMPARE(tabboxClosedSpy.count(), 1);
++ QCOMPARE(workspace()->tabbox()->isGrabbed(), false);
++ QCOMPARE(workspace()->activeWindow(), r2);
++
++ // Now reconfigure MultiScreenMode such that alt+tab will only switch
++ // between windows on the other screen
++ group.writeEntry("MultiScreenMode", 2);
++ group.sync();
++ workspace()->slotReconfigure();
++
++ // Activate and focus l1 to switch to the left output
++ workspace()->activateWindow(l1);
++ QCOMPARE(workspace()->activeWindow(), l1);
++ input()->pointer()->warp(l1->frameGeometry().center());
++ QCOMPARE(workspace()->activeOutput(), outputs[0]);
++
++ // Press Alt+Tab, this will show only clients on the other output. Our old
++ // index from the last invocation of tabbox should be reset to 0 since the
++ // active window (l1) cannot be located in the current client list
++ Test::keyboardKeyPressed(KEY_LEFTALT, timestamp++);
++ QCOMPARE(input()->keyboardModifiers(), Qt::AltModifier);
++ Test::keyboardKeyPressed(KEY_TAB, timestamp++);
++ Test::keyboardKeyReleased(KEY_TAB, timestamp++);
++
++ QVERIFY(tabboxAddedSpy.wait());
++ QVERIFY(workspace()->tabbox()->isGrabbed());
++
++ // Release Alt. With a correctly reset index we should start from the
++ // beginning, skip advancing one window and focus r2 - the last window in
++ // focus on the other output
++ Test::keyboardKeyReleased(KEY_LEFTALT, timestamp++);
++ QCOMPARE(tabboxClosedSpy.count(), 2);
++ QCOMPARE(workspace()->tabbox()->isGrabbed(), false);
++ QCOMPARE(workspace()->activeWindow(), r2);
++
++ rightSurface3.reset();
++ QVERIFY(Test::waitForWindowClosed(r3));
++ rightSurface2.reset();
++ QVERIFY(Test::waitForWindowClosed(r2));
++ rightSurface1.reset();
++ QVERIFY(Test::waitForWindowClosed(r1));
++ leftSurface1.reset();
++ QVERIFY(Test::waitForWindowClosed(l1));
++}
++
+ WAYLANDTEST_MAIN(TabBoxTest)
+ #include "tabbox_test.moc"
+--
+2.47.0
+