ClickHouse/contrib/libpoco/XML/include/Poco/DOM/DocumentEvent.h

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2.1 KiB
C++

//
// DocumentEvent.h
//
// $Id: //poco/1.4/XML/include/Poco/DOM/DocumentEvent.h#1 $
//
// Library: XML
// Package: DOM
// Module: DOM
//
// Definition of the DOM DocumentEvent interface.
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#ifndef DOM_DocumentEvent_INCLUDED
#define DOM_DocumentEvent_INCLUDED
#include "Poco/XML/XML.h"
#include "Poco/XML/XMLString.h"
namespace Poco {
namespace XML {
class Event;
class XML_API DocumentEvent
/// The DocumentEvent interface provides a mechanism by which the user can create
/// an Event of a type supported by the implementation. It is expected that
/// the DocumentEvent interface will be implemented on the same object which
/// implements the Document interface in an implementation which supports the
/// Event model.
{
public:
virtual Event* createEvent(const XMLString& eventType) const = 0;
/// Creates an event of the specified type.
///
/// The eventType parameter specifies the type of Event interface to be created.
/// If the Event interface specified is supported by the implementation this
/// method will return a new Event of the interface type requested. If the Event
/// is to be dispatched via the dispatchEvent method the appropriate event init
/// method must be called after creation in order to initialize the Event's
/// values. As an example, a user wishing to synthesize some kind of UIEvent
/// would call createEvent with the parameter "UIEvents". The initUIEvent method
/// could then be called on the newly created UIEvent to set the specific type
/// of UIEvent to be dispatched and set its context information.
/// The createEvent method is used in creating Events when it is either inconvenient
/// or unnecessary for the user to create an Event themselves. In cases where
/// the implementation provided Event is insufficient, users may supply their
/// own Event implementations for use with the dispatchEvent method.
protected:
virtual ~DocumentEvent();
};
} } // namespace Poco::XML
#endif // DOM_DocumentEvent_INCLUDED