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-rw-r--r--src/client/qwaylandwindow.cpp13
1 files changed, 12 insertions, 1 deletions
diff --git a/src/client/qwaylandwindow.cpp b/src/client/qwaylandwindow.cpp
index fdfd6668..5d658f67 100644
--- a/src/client/qwaylandwindow.cpp
+++ b/src/client/qwaylandwindow.cpp
@@ -287,7 +287,18 @@ void QWaylandWindow::setWindowTitle(const QString &title)
{
if (mShellSurface) {
const QString separator = QString::fromUtf8(" \xe2\x80\x94 "); // unicode character U+2014, EM DASH
- mShellSurface->setTitle(formatWindowTitle(title, separator));
+ const QString formatted = formatWindowTitle(title, separator);
+
+ const int libwaylandMaxBufferSize = 4096;
+ // Some parts of the buffer is used for metadata, so subtract 100 to be on the safe side
+ const int maxLength = libwaylandMaxBufferSize - 100;
+
+ auto truncated = QStringRef(&formatted).left(maxLength);
+ if (truncated.length() < formatted.length()) {
+ qCWarning(lcQpaWayland) << "Window titles longer than" << maxLength << "characters are not supported."
+ << "Truncating window title (from" << formatted.length() << "chars)";
+ }
+ mShellSurface->setTitle(truncated.toString());
}
if (mWindowDecoration && window()->isVisible())