66 lines
2.9 KiB
Diff
66 lines
2.9 KiB
Diff
From 60c7d26098ec6b0da695e97e6f7cc5cd23fa2c56 Mon Sep 17 00:00:00 2001
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From: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
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Date: Tue, 9 Nov 2021 13:23:41 +0100
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Subject: [PATCH 45/49] Fix missing update when toggling client-side
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decorations
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When CSD is toggled while a window is showing, it would change the
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size and recreate the buffers, but since the widget area remained
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the same size, we would not trigger a redraw. The result was that
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when you got any update to the window, it would redraw the widgets
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that had changed, and the rest would be transparent.
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Since this is a fairly specialized case, we fix it the simple way,
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by just issuing an extra update when it happens.
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This also required an update to the surface test, since there is
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an additional buffer commit in the beginning of the sequence now.
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Pick-to: 5.15 6.2 6.3
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Fixes: QTBUG-95032
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Change-Id: Ic4bdb9c66a2ea76546926dd622f2d2dac5dce10c
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Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
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Reviewed-by: Liang Qi <liang.qi@qt.io>
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(cherry picked from commit af7b60ade5c4be81cbc58eb18307c017d5594071)
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---
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src/client/qwaylandwindow.cpp | 7 +++++++
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tests/auto/client/surface/tst_surface.cpp | 4 ++++
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2 files changed, 11 insertions(+)
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diff --git a/src/client/qwaylandwindow.cpp b/src/client/qwaylandwindow.cpp
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index c6477ec4..cb610510 100644
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--- a/src/client/qwaylandwindow.cpp
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+++ b/src/client/qwaylandwindow.cpp
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@@ -867,6 +867,13 @@ bool QWaylandWindow::createDecoration()
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subsurf->set_position(pos.x() + m.left(), pos.y() + m.top());
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}
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sendExposeEvent(QRect(QPoint(), geometry().size()));
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+
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+ // This is a special case where the buffer is recreated, but since
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+ // the content rect remains the same, the widgets remain the same
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+ // size and are not redrawn, leaving the new buffer empty. As a simple
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+ // work-around, we trigger a full extra update whenever the client-side
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+ // window decorations are toggled while the window is showing.
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+ window()->requestUpdate();
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}
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return mWindowDecoration;
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diff --git a/tests/auto/client/surface/tst_surface.cpp b/tests/auto/client/surface/tst_surface.cpp
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index 95e4e609..60c672ce 100644
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--- a/tests/auto/client/surface/tst_surface.cpp
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+++ b/tests/auto/client/surface/tst_surface.cpp
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@@ -129,6 +129,10 @@ void tst_surface::waitForFrameCallbackGl()
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// Make sure we follow frame callbacks for some frames
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for (int i = 0; i < 5; ++i) {
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xdgPingAndWaitForPong(); // Make sure things have happened on the client
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+ if (!qEnvironmentVariableIntValue("QT_WAYLAND_DISABLE_WINDOWDECORATION") && i == 0) {
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+ QCOMPARE(bufferSpy.count(), 1);
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+ bufferSpy.removeFirst();
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+ }
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exec([&] {
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QVERIFY(bufferSpy.empty()); // Make sure no extra buffers have arrived
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QVERIFY(!xdgToplevel()->surface()->m_waitingFrameCallbacks.empty());
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--
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2.37.3
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