FS#80 Have mouse focus stick to the widget when the mouse button is down.

1 files changed, 18 insertions, 0 deletions

diff --git a/src/ui/widget.cc b/src/ui/widget.cc
index 6d0fb84..7cde03b 100644
--- a/src/ui/widget.cc
+++ b/src/ui/widget.cc
@@ -366,6 +366,24 @@ Widget *Widget::find_input_focus()
 	return this;
 }
 
+Widget *Widget::find_visible_child(const Widget *widget)
+{
+	if (!visible())
+		return 0;
+	
+	if (this == widget)
+		return this;
+
+	// search in reverse drawing order
+	for (Children::reverse_iterator rit = widget_children.rbegin(); rit != widget_children.rend(); ++rit) {
+		Widget *f = (*rit)->find_visible_child(widget);
+		if (f) {
+			return f;
+		}
+	}
+	return 0;
+}
+
 Widget *Widget::find_mouse_focus(const math::Vector2f & pos)
 {
 	// this widget is not visible