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-rw-r--r--xorg-server/miext/rootless/rootlessWindow.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/xorg-server/miext/rootless/rootlessWindow.c b/xorg-server/miext/rootless/rootlessWindow.c
index e273d0e38..d43301fc1 100644
--- a/xorg-server/miext/rootless/rootlessWindow.c
+++ b/xorg-server/miext/rootless/rootlessWindow.c
@@ -1684,3 +1684,29 @@ RootlessShowAllWindows (void)
RootlessScreenExpose (pScreen);
}
}
+
+/*
+ * SetPixmapOfAncestors
+ * Set the Pixmaps on all ParentRelative windows up the ancestor chain.
+ */
+void
+RootlessSetPixmapOfAncestors(WindowPtr pWin)
+{
+ ScreenPtr pScreen = pWin->drawable.pScreen;
+ WindowPtr topWin = TopLevelParent(pWin);
+ RootlessWindowRec *topWinRec = WINREC(topWin);
+
+ while (pWin->backgroundState == ParentRelative) {
+ if (pWin == topWin) {
+ // disallow ParentRelative background state on top level
+ XID pixel = 0;
+ ChangeWindowAttributes(pWin, CWBackPixel, &pixel, serverClient);
+ RL_DEBUG_MSG("Cleared ParentRelative on 0x%x.\n", pWin);
+ break;
+ }
+
+ pWin = pWin->parent;
+ pScreen->SetWindowPixmap(pWin, topWinRec->pixmap);
+ }
+}
+