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-rw-r--r--src/gui/kernel/qplatformwindow.cpp27
1 files changed, 21 insertions, 6 deletions
diff --git a/src/gui/kernel/qplatformwindow.cpp b/src/gui/kernel/qplatformwindow.cpp
index bcd3e830dd..70e2c22ee1 100644
--- a/src/gui/kernel/qplatformwindow.cpp
+++ b/src/gui/kernel/qplatformwindow.cpp
@@ -192,15 +192,30 @@ bool QPlatformWindow::isActive() const
}
/*!
- Returns \c true if the window is a descendant of an embedded non-Qt window.
- Example of an embedded non-Qt window is the parent window of an in-process QAxServer.
+ Returns \c true if the window is an ancestor of the given \a child.
- If \a parentWindow is nonzero, only check if the window is embedded in the
- specified \a parentWindow.
+ Platform overrides should iterate the native window hierarchy of the child,
+ to ensure that ancestary is reflected even with native windows in the window
+ hierarchy.
*/
-bool QPlatformWindow::isEmbedded(const QPlatformWindow *parentWindow) const
+bool QPlatformWindow::isAncestorOf(const QPlatformWindow *child) const
+{
+ for (const QPlatformWindow *parent = child->parent(); parent; parent = child->parent()) {
+ if (parent == this)
+ return true;
+ }
+
+ return false;
+}
+
+/*!
+ Returns \c true if the window is a child of a non-Qt window.
+
+ A embedded window has no parent platform window as reflected
+ though parent(), but will have a native parent window.
+*/
+bool QPlatformWindow::isEmbedded() const
{
- Q_UNUSED(parentWindow);
return false;
}