svl: add an SfxGrabBagItem

The intention is that this can be used as a grab bag of properties which
are not handled properly, yet we want the roundtrip of them to alien
formats.

See
http://lists.freedesktop.org/archives/libreoffice/2013-July/054428.html
for more details.

Change-Id: I3781b3b3bf1380d30683039f037d9a4292ba2f4a

include/svl/grabbagitem.hxx

+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+#ifndef _SFXGRABBAGITEM_HXX
+#define _SFXGRABBAGITEM_HXX
+
+#include <map>
+
+#include "svl/svldllapi.h"
+#include <tools/rtti.hxx>
+#include <svl/poolitem.hxx>
+#include <com/sun/star/uno/Any.hxx>
+
+/// Grab bag item provides a string-any map for interim interop purposes.
+class SVL_DLLPUBLIC SfxGrabBagItem : public SfxPoolItem
+{
+private:
+    std::map<OUString, com::sun::star::uno::Any> m_aMap;
+
+public:
+    TYPEINFO();
+
+    SfxGrabBagItem();
+    SfxGrabBagItem(sal_uInt16 nWhich, const std::map<OUString, com::sun::star::uno::Any> *pMap = 0);
+    SfxGrabBagItem(const SfxGrabBagItem& rItem);
+    ~SfxGrabBagItem();
+
+    void SetGrabBag(const std::map<OUString, com::sun::star::uno::Any>& rMap);
+    const std::map<OUString, com::sun::star::uno::Any>& GetGrabBag() const;
+
+    virtual int operator==(const SfxPoolItem&) const;
+    virtual SfxPoolItem* Clone(SfxItemPool *pPool = 0) const;
+
+    virtual bool PutValue(const com::sun::star::uno::Any& rVal, sal_uInt8 nMemberId = 0);
+    virtual bool QueryValue(com::sun::star::uno::Any& rVal, sal_uInt8 nMemberId = 0) const;
+};
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */

svl/Library_svl.mk

@@ -73,6 +73,7 @@ $(eval $(call gb_Library_add_exception_objects,svl,\
     svl/source/items/eitem \
     svl/source/items/flagitem \
     svl/source/items/globalnameitem \
+    svl/source/items/grabbagitem \
     svl/source/items/ilstitem \
     svl/source/items/imageitm \
     svl/source/items/intitem \

svl/source/items/grabbagitem.cxx

+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <svl/grabbagitem.hxx>
+#include <svl/poolitem.hxx>
+#include <com/sun/star/uno/Any.hxx>
+#include <com/sun/star/uno/Sequence.hxx>
+#include <comphelper/sequence.hxx>
+
+#include <com/sun/star/beans/PropertyValue.hpp>
+
+DBG_NAME(SfxGrabBagItem)
+
+TYPEINIT1_AUTOFACTORY(SfxGrabBagItem, SfxPoolItem);
+
+using namespace com::sun::star;
+
+SfxGrabBagItem::SfxGrabBagItem()
+{
+}
+
+SfxGrabBagItem::SfxGrabBagItem(sal_uInt16 nWhich, const std::map<OUString, uno::Any> *pMap) :
+    SfxPoolItem( nWhich )
+{
+    if (pMap)
+        m_aMap = *pMap;
+}
+
+SfxGrabBagItem::SfxGrabBagItem(const SfxGrabBagItem& rItem) :
+    SfxPoolItem(rItem),
+    m_aMap(rItem.m_aMap)
+{
+}
+
+SfxGrabBagItem::~SfxGrabBagItem()
+{
+}
+
+void SfxGrabBagItem::SetGrabBag(const std::map<OUString, uno::Any>& rMap)
+{
+    m_aMap = rMap;
+}
+
+const std::map<OUString, uno::Any>& SfxGrabBagItem::GetGrabBag() const
+{
+    return m_aMap;
+}
+
+int SfxGrabBagItem::operator==(const SfxPoolItem& rItem) const
+{
+    SfxGrabBagItem* pItem = (SfxGrabBagItem*)&rItem;
+
+    return m_aMap == pItem->m_aMap;
+}
+
+SfxPoolItem* SfxGrabBagItem::Clone(SfxItemPool * /*pPool*/) const
+{
+    return new SfxGrabBagItem(*this);
+}
+
+bool SfxGrabBagItem::PutValue(const uno::Any& rVal, sal_uInt8 /*nMemberId*/)
+{
+    uno::Sequence<beans::PropertyValue> aValue;
+    if ( rVal >>= aValue )
+    {
+        m_aMap.clear();
+        comphelper::OSequenceIterator<beans::PropertyValue> i(aValue);
+        while (i.hasMoreElements())
+        {
+            beans::PropertyValue aPropertyValue = i.nextElement().get<beans::PropertyValue>();
+            m_aMap[aPropertyValue.Name] = aPropertyValue.Value;
+        }
+        return true;
+    }
+
+    SAL_WARN("svl", "SfxGrabBagItem::PutValue: wrong type");
+    return false;
+}
+
+bool SfxGrabBagItem::QueryValue(uno::Any& rVal, sal_uInt8 /*nMemberId*/) const
+{
+    uno::Sequence<beans::PropertyValue> aValue(m_aMap.size());
+    beans::PropertyValue* pValue = aValue.getArray();
+    for (std::map<OUString, com::sun::star::uno::Any>::const_iterator i = m_aMap.begin(); i != m_aMap.end(); ++i)
+    {
+        pValue[0].Name = i->first;
+        pValue[0].Value = i->second;
+        ++pValue;
+    }
+    rVal = uno::makeAny(aValue);
+    return true;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */