xcb: implement and deprecate QWidget::setWindowIconText()

This is a little-used feature which only affects how minimized icons
are displayed on certain older window managers, and is not necessary
even then.  It has not been implemented in Qt 5 until now.

Task-number: QTBUG-44659
Change-Id: Ie6ead7a6f922878b349a096d905bf7f675dc2f31
Reviewed-by: Jørgen Lind <jorgen.lind@theqtcompany.com>

1 files changed, 19 insertions, 1 deletions

diff --git a/src/plugins/platforms/xcb/qxcbwindow.cpp b/src/plugins/platforms/xcb/qxcbwindow.cpp
index 222f6c1170..6d2f5276b3 100644
--- a/src/plugins/platforms/xcb/qxcbwindow.cpp
+++ b/src/plugins/platforms/xcb/qxcbwindow.cpp
@@ -1393,10 +1393,22 @@ void QXcbWindow::setWindowTitle(const QString &title)
     xcb_flush(xcb_connection());
 }
 
+void QXcbWindow::setWindowIconText(const QString &title)
+{
+    const QByteArray ba = title.toUtf8();
+    Q_XCB_CALL(xcb_change_property(xcb_connection(),
+                                   XCB_PROP_MODE_REPLACE,
+                                   m_window,
+                                   atom(QXcbAtom::_NET_WM_ICON_NAME),
+                                   atom(QXcbAtom::UTF8_STRING),
+                                   8,
+                                   ba.length(),
+                                   ba.constData()));
+}
+
 void QXcbWindow::setWindowIcon(const QIcon &icon)
 {
     QVector<quint32> icon_data;
-
     if (!icon.isNull()) {
         QList<QSize> availableSizes = icon.availableSizes();
         if (availableSizes.isEmpty()) {
@@ -1561,6 +1573,12 @@ void QXcbWindow::setWmWindowTypeStatic(QWindow *window, QXcbWindowFunctions::WmW
         window->setProperty(wm_window_type_property_id, QVariant::fromValue(static_cast<int>(windowTypes)));
 }
 
+void QXcbWindow::setWindowIconTextStatic(QWindow *window, const QString &text)
+{
+    if (window->handle())
+        static_cast<QXcbWindow *>(window->handle())->setWindowIconText(text);
+}
+
 QXcbWindowFunctions::WmWindowTypes QXcbWindow::wmWindowTypes() const
 {
     QXcbWindowFunctions::WmWindowTypes result(0);