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From b736b4488dcaa1a3c6b0c6059e5b85881f74c52b Mon Sep 17 00:00:00 2001
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From: David Edmundson <davidedmundson@kde.org>
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Date: Sun, 14 Nov 2021 13:54:19 +0000
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Subject: [PATCH 27/40] Client: Avoid processing of events when showing windows
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The only time we want to dispatch events from the wayland socket is when
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the application is waiting for external events. Doing so at any other
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time will cause unpredictable behavior in client code.
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This caused a crash downstream where we had outputs get altered whilst
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itterating through outputs, which shouldn't happen.
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There is no benefit to flushing here, it won't make anything appear
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faster as we haven't attached the buffer yet.
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Change-Id: Ie13eae4012dab96a93d8810f468d1343402b8c28
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Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
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Reviewed-by: Aleix Pol Gonzalez <aleixpol@kde.org>
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(cherry picked from commit 46ed85a80b28d519cf5887bbdce55d1bf57886c3)
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---
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src/client/qwaylandwindow.cpp | 1 -
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1 file changed, 1 deletion(-)
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diff --git a/src/client/qwaylandwindow.cpp b/src/client/qwaylandwindow.cpp
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index ba881cb3..1597f67e 100644
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--- a/src/client/qwaylandwindow.cpp
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+++ b/src/client/qwaylandwindow.cpp
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@@ -436,7 +436,6 @@ void QWaylandWindow::setVisible(bool visible)
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if (window()->type() == Qt::Popup || window()->type() == Qt::ToolTip)
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activePopups << this;
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initWindow();
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- mDisplay->flushRequests();
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setGeometry(windowGeometry());
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// Don't flush the events here, or else the newly visible window may start drawing, but since
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--
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2.35.1
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