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-rw-r--r--comphelper/source/container/enumhelper.cxx299
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diff --git a/comphelper/source/container/enumhelper.cxx b/comphelper/source/container/enumhelper.cxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org. If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+// MARKER(update_precomp.py): autogen include statement, do not remove
+#include "precompiled_comphelper.hxx"
+#include <comphelper/enumhelper.hxx>
+#include <com/sun/star/lang/XComponent.hpp>
+
+//.........................................................................
+namespace comphelper
+{
+//.........................................................................
+
+//==================================================================
+//= OEnumerationByName
+//==================================================================
+//------------------------------------------------------------------------------
+OEnumerationByName::OEnumerationByName(const staruno::Reference<starcontainer::XNameAccess>& _rxAccess)
+ :m_aNames(_rxAccess->getElementNames())
+ ,m_nPos(0)
+ ,m_xAccess(_rxAccess)
+ ,m_bListening(sal_False)
+{
+ impl_startDisposeListening();
+}
+
+//------------------------------------------------------------------------------
+OEnumerationByName::OEnumerationByName(const staruno::Reference<starcontainer::XNameAccess>& _rxAccess,
+ const staruno::Sequence< ::rtl::OUString >& _aNames )
+ :m_aNames(_aNames)
+ ,m_nPos(0)
+ ,m_xAccess(_rxAccess)
+ ,m_bListening(sal_False)
+{
+ impl_startDisposeListening();
+}
+
+//------------------------------------------------------------------------------
+OEnumerationByName::~OEnumerationByName()
+{
+ impl_stopDisposeListening();
+}
+
+//------------------------------------------------------------------------------
+sal_Bool SAL_CALL OEnumerationByName::hasMoreElements( ) throw(staruno::RuntimeException)
+{
+ ::osl::ResettableMutexGuard aLock(m_aLock);
+
+ if (m_xAccess.is() && m_aNames.getLength() > m_nPos)
+ return sal_True;
+
+ if (m_xAccess.is())
+ {
+ impl_stopDisposeListening();
+ m_xAccess.clear();
+ }
+
+ return sal_False;
+}
+
+//------------------------------------------------------------------------------
+staruno::Any SAL_CALL OEnumerationByName::nextElement( )
+ throw(starcontainer::NoSuchElementException, starlang::WrappedTargetException, staruno::RuntimeException)
+{
+ ::osl::ResettableMutexGuard aLock(m_aLock);
+
+ staruno::Any aRes;
+ if (m_xAccess.is() && m_nPos < m_aNames.getLength())
+ aRes = m_xAccess->getByName(m_aNames.getConstArray()[m_nPos++]);
+
+ if (m_xAccess.is() && m_nPos >= m_aNames.getLength())
+ {
+ impl_stopDisposeListening();
+ m_xAccess.clear();
+ }
+
+ if (!aRes.hasValue()) // es gibt kein Element mehr
+ throw starcontainer::NoSuchElementException();
+
+ return aRes;
+}
+
+//------------------------------------------------------------------------------
+void SAL_CALL OEnumerationByName::disposing(const starlang::EventObject& aEvent)
+ throw(staruno::RuntimeException)
+{
+ ::osl::ResettableMutexGuard aLock(m_aLock);
+
+ if (aEvent.Source == m_xAccess)
+ m_xAccess.clear();
+}
+
+//------------------------------------------------------------------------------
+void OEnumerationByName::impl_startDisposeListening()
+{
+ ::osl::ResettableMutexGuard aLock(m_aLock);
+
+ if (m_bListening)
+ return;
+
+ ++m_refCount;
+ staruno::Reference< starlang::XComponent > xDisposable(m_xAccess, staruno::UNO_QUERY);
+ if (xDisposable.is())
+ {
+ xDisposable->addEventListener(this);
+ m_bListening = sal_True;
+ }
+ --m_refCount;
+}
+
+//------------------------------------------------------------------------------
+void OEnumerationByName::impl_stopDisposeListening()
+{
+ ::osl::ResettableMutexGuard aLock(m_aLock);
+
+ if (!m_bListening)
+ return;
+
+ ++m_refCount;
+ staruno::Reference< starlang::XComponent > xDisposable(m_xAccess, staruno::UNO_QUERY);
+ if (xDisposable.is())
+ {
+ xDisposable->removeEventListener(this);
+ m_bListening = sal_False;
+ }
+ --m_refCount;
+}
+
+//==================================================================
+//= OEnumerationByIndex
+//==================================================================
+//------------------------------------------------------------------------------
+OEnumerationByIndex::OEnumerationByIndex(const staruno::Reference< starcontainer::XIndexAccess >& _rxAccess)
+ :m_nPos(0)
+ ,m_xAccess(_rxAccess)
+ ,m_bListening(sal_False)
+{
+ impl_startDisposeListening();
+}
+
+//------------------------------------------------------------------------------
+OEnumerationByIndex::~OEnumerationByIndex()
+{
+ impl_stopDisposeListening();
+}
+
+//------------------------------------------------------------------------------
+sal_Bool SAL_CALL OEnumerationByIndex::hasMoreElements( ) throw(staruno::RuntimeException)
+{
+ ::osl::ResettableMutexGuard aLock(m_aLock);
+
+ if (m_xAccess.is() && m_xAccess->getCount() > m_nPos)
+ return sal_True;
+
+ if (m_xAccess.is())
+ {
+ impl_stopDisposeListening();
+ m_xAccess.clear();
+ }
+
+ return sal_False;
+}
+
+//------------------------------------------------------------------------------
+staruno::Any SAL_CALL OEnumerationByIndex::nextElement( )
+ throw(starcontainer::NoSuchElementException, starlang::WrappedTargetException, staruno::RuntimeException)
+{
+ ::osl::ResettableMutexGuard aLock(m_aLock);
+
+ staruno::Any aRes;
+ if (m_xAccess.is())
+ {
+ aRes = m_xAccess->getByIndex(m_nPos++);
+ if (m_nPos >= m_xAccess->getCount())
+ {
+ impl_stopDisposeListening();
+ m_xAccess.clear();
+ }
+ }
+
+ if (!aRes.hasValue()) // es gibt kein Element mehr
+ throw starcontainer::NoSuchElementException();
+ return aRes;
+}
+
+//------------------------------------------------------------------------------
+void SAL_CALL OEnumerationByIndex::disposing(const starlang::EventObject& aEvent)
+ throw(staruno::RuntimeException)
+{
+ ::osl::ResettableMutexGuard aLock(m_aLock);
+
+ if (aEvent.Source == m_xAccess)
+ m_xAccess.clear();
+}
+
+//------------------------------------------------------------------------------
+void OEnumerationByIndex::impl_startDisposeListening()
+{
+ ::osl::ResettableMutexGuard aLock(m_aLock);
+
+ if (m_bListening)
+ return;
+
+ ++m_refCount;
+ staruno::Reference< starlang::XComponent > xDisposable(m_xAccess, staruno::UNO_QUERY);
+ if (xDisposable.is())
+ {
+ xDisposable->addEventListener(this);
+ m_bListening = sal_True;
+ }
+ --m_refCount;
+}
+
+//------------------------------------------------------------------------------
+void OEnumerationByIndex::impl_stopDisposeListening()
+{
+ ::osl::ResettableMutexGuard aLock(m_aLock);
+
+ if (!m_bListening)
+ return;
+
+ ++m_refCount;
+ staruno::Reference< starlang::XComponent > xDisposable(m_xAccess, staruno::UNO_QUERY);
+ if (xDisposable.is())
+ {
+ xDisposable->removeEventListener(this);
+ m_bListening = sal_False;
+ }
+ --m_refCount;
+}
+
+//==================================================================
+//= OAnyEnumeration
+//==================================================================
+
+//------------------------------------------------------------------------------
+OAnyEnumeration::OAnyEnumeration(const staruno::Sequence< staruno::Any >& lItems)
+ :m_nPos(0)
+ ,m_lItems(lItems)
+{
+}
+
+//------------------------------------------------------------------------------
+OAnyEnumeration::~OAnyEnumeration()
+{
+}
+
+//------------------------------------------------------------------------------
+sal_Bool SAL_CALL OAnyEnumeration::hasMoreElements( ) throw(staruno::RuntimeException)
+{
+ ::osl::ResettableMutexGuard aLock(m_aLock);
+
+ return (m_lItems.getLength() > m_nPos);
+}
+
+//------------------------------------------------------------------------------
+staruno::Any SAL_CALL OAnyEnumeration::nextElement( )
+ throw(starcontainer::NoSuchElementException, starlang::WrappedTargetException, staruno::RuntimeException)
+{
+ if ( ! hasMoreElements())
+ throw starcontainer::NoSuchElementException();
+
+ ::osl::ResettableMutexGuard aLock(m_aLock);
+ sal_Int32 nPos = m_nPos;
+ ++m_nPos;
+ return m_lItems[nPos];
+}
+
+//.........................................................................
+} // namespace comphelper
+//.........................................................................
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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