intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 146 insertions, 0 deletions

diff --git a/contrib/libs/poco/XML/src/EventDispatcher.cpp b/contrib/libs/poco/XML/src/EventDispatcher.cpp
new file mode 100644
index 0000000000..4656f9b45f
--- /dev/null
+++ b/contrib/libs/poco/XML/src/EventDispatcher.cpp
@@ -0,0 +1,146 @@
+//
+// EventDispatcher.cpp
+//
+// Library: XML
+// Package: DOM
+// Module:  DOMEvents
+//
+// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+//
+
+
+#include "Poco/DOM/EventDispatcher.h"
+#include "Poco/DOM/Event.h"
+#include "Poco/DOM/EventListener.h"
+
+
+namespace 
+{
+	class DispatchGuard
+	{
+	public:
+		DispatchGuard(int& count):
+			_count(count)
+		{
+			++_count;
+		}
+		
+		~DispatchGuard()
+		{
+			--_count;
+		}
+		
+	private:
+		int& _count;
+	};
+}
+
+
+namespace Poco {
+namespace XML {
+
+
+EventDispatcher::EventDispatcher():
+	_inDispatch(0)
+{
+}
+
+	
+EventDispatcher::~EventDispatcher()
+{
+}
+
+
+void EventDispatcher::addEventListener(const XMLString& type, EventListener* listener, bool useCapture)
+{
+	EventListenerItem item;
+	item.type       = type;
+	item.pListener  = listener;
+	item.useCapture = useCapture;
+	_listeners.push_front(item);
+}
+
+
+void EventDispatcher::removeEventListener(const XMLString& type, EventListener* listener, bool useCapture)
+{
+	EventListenerList::iterator it = _listeners.begin();
+	while (it != _listeners.end())
+	{
+		if (it->type == type && it->pListener == listener && it->useCapture == useCapture)
+		{
+			it->pListener = 0;
+		}
+		if (!_inDispatch && !it->pListener)
+		{
+			EventListenerList::iterator del = it++;
+			_listeners.erase(del);
+		}
+		else ++it;
+	}
+}
+
+
+void EventDispatcher::dispatchEvent(Event* evt)
+{
+	DispatchGuard guard(_inDispatch);
+	EventListenerList::iterator it = _listeners.begin();
+	while (it != _listeners.end())
+	{
+		if (it->pListener && it->type == evt->type())
+		{
+			it->pListener->handleEvent(evt);
+		}
+		if (!it->pListener)
+		{
+			EventListenerList::iterator del = it++;
+			_listeners.erase(del);
+		}
+		else ++it;
+	}
+}
+
+
+void EventDispatcher::captureEvent(Event* evt)
+{
+	DispatchGuard guard(_inDispatch);
+	EventListenerList::iterator it = _listeners.begin();
+	while (it != _listeners.end())
+	{
+		if (it->pListener && it->useCapture && it->type == evt->type())
+		{
+			it->pListener->handleEvent(evt);
+		}
+		if (!it->pListener)
+		{
+			EventListenerList::iterator del = it++;
+			_listeners.erase(del);
+		}
+		else ++it;
+	}
+}
+
+
+void EventDispatcher::bubbleEvent(Event* evt)
+{
+	DispatchGuard guard(_inDispatch);
+	EventListenerList::iterator it = _listeners.begin();
+	while (it != _listeners.end())
+	{
+		if (it->pListener && !it->useCapture && it->type == evt->type())
+		{
+			it->pListener->handleEvent(evt);
+		}
+		if (!it->pListener)
+		{
+			EventListenerList::iterator del = it++;
+			_listeners.erase(del);
+		}
+		else ++it;
+	}
+}
+
+
+} } // namespace Poco::XML