<table><tr><td style="">graesslin created this revision.<br />Restricted Application added a project: KWin.<br />Restricted Application added subscribers: kwin, plasma-devel.
</td><a style="text-decoration: none; padding: 4px 8px; margin: 0 8px 8px; float: right; color: #464C5C; font-weight: bold; border-radius: 3px; background-color: #F7F7F9; background-image: linear-gradient(to bottom,#fff,#f1f0f1); display: inline-block; border: 1px solid rgba(71,87,120,.2);" href="https://phabricator.kde.org/D5549" rel="noreferrer">View Revision</a></tr></table><br /><div><strong>REVISION SUMMARY</strong><div><p>To have touch events working we need to do memory layout changes on the<br />
xcb events. This is fine for identifying the touch events which should<br />
trigger the screen edge. But when passed on to Qt to have QtQuick windows<br />
(e.g. Alt+Tab) handle the touch events, this results in a problem:<br />
Qt itself does also the memory movement and then the movement is double<br />
and touch events break.</p>
<p>To prevent this problem an RAII class is added which moves the memory in<br />
the ctor and moves it back in the dtor. So during KWin's processing it<br />
has the right memory layout and later on in Qt's processing it has the<br />
proper "wrong" layout which Qt can fix again.</p></div></div><br /><div><strong>TEST PLAN</strong><div><p>Touch events in Alt+Tab work</p></div></div><br /><div><strong>REPOSITORY</strong><div><div>R108 KWin</div></div></div><br /><div><strong>BRANCH</strong><div><div>tabbox-touch-events</div></div></div><br /><div><strong>REVISION DETAIL</strong><div><a href="https://phabricator.kde.org/D5549" rel="noreferrer">https://phabricator.kde.org/D5549</a></div></div><br /><div><strong>AFFECTED FILES</strong><div><div>plugins/platforms/x11/standalone/xinputintegration.cpp</div></div></div><br /><div><strong>To: </strong>graesslin, KWin, Plasma<br /><strong>Cc: </strong>plasma-devel, kwin, spstarr, progwolff, lesliezhai, ali-mohamed, hardening, jensreuterberg, abetts, sebas, apol<br /></div>