1 files changed, 94 insertions, 0 deletions
diff --git a/src/jabber_whiteboard/tracker-node.h b/src/jabber_whiteboard/tracker-node.h
new file mode 100644
index 000000000..bbaf527ce
--- /dev/null
+++ b/src/jabber_whiteboard/tracker-node.h
@@ -0,0 +1,94 @@
+/**
+ * Whiteboard session manager
+ * XML node tracking facility
+ *
+ * Authors:
+ * David Yip <yipdw@rose-hulman.edu>
+ *
+ * Copyright (c) 2005 Authors
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#ifndef __WHITEBOARD_TRACKER_NODE_H__
+#define __WHITEBOARD_TRACKER_NODE_H__
+
+#include "xml/node.h"
+
+#include "gc-managed.h"
+#include "gc-finalized.h"
+
+#include <glibmm.h>
+#include <bitset>
+
+namespace Inkscape {
+
+namespace Whiteboard {
+
+// set _size in TrackerNode private members if you add or delete
+// any more listeners
+enum ListenerType {
+	ATTR_CHANGED,
+	CHILD_ADDED,
+	CHILD_REMOVED,
+	CHILD_ORDER_CHANGED,
+	CONTENT_CHANGED
+};
+
+struct TrackerNode : public GC::Managed<> {
+public:
+	TrackerNode(XML::Node const* n) : _node(n)
+	{
+	}
+
+	~TrackerNode()
+	{
+	}
+	
+	void lock(ListenerType listener)
+	{
+		if (listener < _size) {
+			this->_listener_locks.set(listener, true);
+		}
+	}
+	
+	void unlock(ListenerType listener)
+	{
+		if (listener < _size) {
+			this->_listener_locks.set(listener, false);
+		}
+	}
+	
+	bool isLocked(ListenerType listener) 
+	{
+		return (this->_listener_locks[listener]);
+	}
+
+	XML::Node const* _node;
+
+private:
+	// change this if any other flags are added
+	static unsigned short const _size = 5;
+	std::bitset< _size > _listener_locks;
+
+	// noncopyable, nonassignable
+	TrackerNode(TrackerNode const&);
+	TrackerNode& operator=(TrackerNode const&);
+};
+
+}
+
+}
+
+#endif
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :