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Diffstat (limited to 'sfx2/source/doc/Metadatable.cxx')
| -rw-r--r-- | sfx2/source/doc/Metadatable.cxx | 1703 |
1 files changed, 1703 insertions, 0 deletions
diff --git a/sfx2/source/doc/Metadatable.cxx b/sfx2/source/doc/Metadatable.cxx new file mode 100644 index 000000000000..94c5826569f2 --- /dev/null +++ b/sfx2/source/doc/Metadatable.cxx @@ -0,0 +1,1703 @@ +/************************************************************************* + * + * 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. + * + ************************************************************************/ + +#include "precompiled_sfx2.hxx" + +#include <sfx2/Metadatable.hxx> +#include <sfx2/XmlIdRegistry.hxx> + +#include <vos/mutex.hxx> +#include <vcl/svapp.hxx> // solarmutex + +#include <rtl/random.h> + +#include <boost/bind.hpp> + +#include <memory> +#include <hash_map> +#include <list> +#include <algorithm> +#if OSL_DEBUG_LEVEL > 0 +#include <typeinfo> +#endif + + +/** XML ID handling. + + There is an abstract base class <type>XmlIdRegistry</type>, with + 2 subclasses <type>XmlIdRegistryDocument</type> for "normal" documents, + and <type>XmlIdRegistryClipboard</type> for clipboard documents. + These classes are responsible for managing XML IDs for all elements + of the model. Only the implementation of the <type>Metadatable</type> + base class needs to know the registries, so they are not in the header. + + The handling of XML IDs differs between clipboard and non-clipboard + documents in several aspects. Most importantly, non-clipboard documents + can have several elements associated with one XML ID. + This is necessary because of the weird undo implementation: + deleting a text node moves the deleted node to the undo array, but + executing undo will then create a <em>copy</em> of that node in the + document array. These 2 nodes must have the same XML ID, because + we cannot know whether the user will do a redo next, or something else. + + Because we need to have a mechanism for several objects per XML ID anyway, + we use that also to enable some usability features: + The document registry has a list of Metadatables per XML ID. + This list is sorted by priority, i.e., the first element has highest + priority. When inserting copies, care must be taken that they are inserted + at the right position: either before or after the source. + This is done by <method>Metadatable::RegisterAsCopyOf</method>. + When a text node is split, then both resulting text nodes are inserted + into the list. If the user then deletes one text node, the other one + will have the XML ID. + Also, when a Metadatable is copied to the clipboard and then pasted, + the copy is inserted into the list. If the user then deletes the source, + the XML ID is not lost. + The goal is that it should be hard to lose an XML ID by accident, which + is especially important as long as we do not have an UI that displays them. + + There are two subclasses of <type>Metadatable</type>: + <ul><li><type>MetadatableClipboard</type>: for copies in the clipboard</li> + <li><type>MetadatableUndo</type>: for undo, because a Metadatable + may be destroyed on delete and a new one created on undo.</li></ul> + These serve only to track the position in an XML ID list in a document + registry, so that future actions can insert objects at the right position. + Unfortunately, inserting dummy objects seems to be necessary: + <ul><li>it is not sufficent to just remember the saved id, because then + the relative priorities might change when executing the undo</li> + <li>it is not sufficient to record the position as an integer, because + if we delete a text node and then undo, the node will be copied(!), + and we will have one more node in the list.<li> + <li>it is not sufficient to record the pointer of the previous/next + Metadatable, because if we delete a text node, undo, and then + do something to clear the redo array, the original text node is + destroyed, and is replaced by the copy created by undo</li></ul> + + If content from a non-clipboard document is copied into a clipboard + document, a dummy <type>MetadatableClipboard</type> is inserted into the + non-clipboard document registry in order to track the position of the + source element. When the clipboard content is pasted back into the source + document, this dummy object is used to associate the pasted element with + that same XML ID. + + If a <type>Metadatable</type> is deleted or merged, + <method>Metadatable::CreateUndo</method> is called, and returns a + <type>MetadatableUndo<type> instance, which can be used to undo the action + by passing it to <method>Metadatable::RestoreMetadata</method>. + + @author mst + */ + + +using namespace ::com::sun::star; + +using ::sfx2::isValidXmlId; + + +namespace sfx2 { + +static const char s_content [] = "content.xml"; +static const char s_styles [] = "styles.xml"; +static const char s_prefix [] = "id"; // prefix for generated xml:id + +static bool isContentFile(::rtl::OUString const & i_rPath) +{ + return i_rPath.equalsAscii(s_content); +} + +static bool isStylesFile (::rtl::OUString const & i_rPath) +{ + return i_rPath.equalsAscii(s_styles); +} + + +//============================================================================= +// XML ID handling --------------------------------------------------- + +/** handles registration of XMetadatable. + + This class is responsible for guaranteeing that XMetadatable objects + always have XML IDs that are unique within a stream. + + This is an abstract base class; see subclasses XmlIdRegistryDocument and + XmlIdRegistryClipboard. + + @see SwDoc::GetXmlIdRegistry + @see SwDocShell::GetXmlIdRegistry + */ +class XmlIdRegistry : public sfx2::IXmlIdRegistry +{ + +public: + XmlIdRegistry(); + + virtual ~XmlIdRegistry(); + + /** get the ODF element with the given metadata reference. */ + virtual ::com::sun::star::uno::Reference< + ::com::sun::star::rdf::XMetadatable > SAL_CALL + GetElementByMetadataReference( + const ::com::sun::star::beans::StringPair & i_rReference) const; + + /** register an ODF element at a newly generated, unique metadata reference. + + <p> + Find a fresh XML ID, and register it for the element. + The generated ID does not occur in any stream of the document. + </p> + */ + virtual void RegisterMetadatableAndCreateID(Metadatable& i_xObject) = 0; + + /** try to register an ODF element at a given XML ID, or update its + registation to a different XML ID. + + <p> + If the given new metadata reference is not already occupied in the + document, unregister the element at its old metadata reference if + it has one, and register the new metadata reference for the element. + Note that this method only ensures that XML IDs are unique per stream, + so using the same XML ID in both content.xml and styles.xml is allowed. + </p> + + @returns + true iff the element has successfully been registered + */ + virtual bool TryRegisterMetadatable(Metadatable& i_xObject, + ::rtl::OUString const& i_rStreamName, ::rtl::OUString const& i_rIdref) + = 0; + + /** unregister an ODF element. + + <p> + Unregister the element at its metadata reference. + Does not remove the metadata reference from the element. + </p> + + @see RemoveXmlIdForElement + */ + virtual void UnregisterMetadatable(Metadatable const&) = 0; + + /** get the metadata reference for the given element. */ + ::com::sun::star::beans::StringPair + GetXmlIdForElement(Metadatable const&) const; + + /** remove the metadata reference for the given element. */ + virtual void RemoveXmlIdForElement(Metadatable const&) = 0; + +protected: + + virtual bool LookupXmlId(const Metadatable& i_xObject, + ::rtl::OUString & o_rStream, ::rtl::OUString & o_rIdref) const = 0; + + virtual Metadatable* LookupElement(const ::rtl::OUString & i_rStreamName, + const ::rtl::OUString & i_rIdref) const = 0; +}; + +// XmlIdRegistryDocument --------------------------------------------- + +/** non-clipboard documents */ +class XmlIdRegistryDocument : public XmlIdRegistry +{ + +public: + XmlIdRegistryDocument(); + + virtual ~XmlIdRegistryDocument(); + + virtual void RegisterMetadatableAndCreateID(Metadatable& i_xObject); + + virtual bool TryRegisterMetadatable(Metadatable& i_xObject, + ::rtl::OUString const& i_rStreamName, ::rtl::OUString const& i_rIdref); + + virtual void UnregisterMetadatable(Metadatable const&); + + virtual void RemoveXmlIdForElement(Metadatable const&); + + /** register i_rCopy as a copy of i_rSource, + with precedence iff i_bCopyPrecedesSource is true */ + void RegisterCopy(Metadatable const& i_rSource, Metadatable & i_rCopy, + const bool i_bCopyPrecedesSource); + + /** create a Undo Metadatable for i_rObject. */ + ::boost::shared_ptr<MetadatableUndo> CreateUndo( + Metadatable const& i_rObject); + + /** merge i_rMerged and i_rOther into i_rMerged. */ + void JoinMetadatables(Metadatable & i_rMerged, Metadatable const& i_rOther); + + // unfortunately public, Metadatable::RegisterAsCopyOf needs this + virtual bool LookupXmlId(const Metadatable& i_xObject, + ::rtl::OUString & o_rStream, ::rtl::OUString & o_rIdref) const; + +private: + + virtual Metadatable* LookupElement(const ::rtl::OUString & i_rStreamName, + const ::rtl::OUString & i_rIdref) const; + + struct XmlIdRegistry_Impl; + ::std::auto_ptr<XmlIdRegistry_Impl> m_pImpl; +}; + +// MetadatableUndo --------------------------------------------------- + +/** the horrible Undo Metadatable: is inserted into lists to track position */ +class MetadatableUndo : public Metadatable +{ + /// as determined by the stream of the source in original document + const bool m_isInContent; +public: + MetadatableUndo(const bool i_isInContent) + : m_isInContent(i_isInContent) { } + virtual ::sfx2::XmlIdRegistry& GetRegistry() + { + // N.B. for Undo, m_pReg is initialized by registering this as copy in + // CreateUndo; it is never cleared + OSL_ENSURE(m_pReg, "no m_pReg in MetadatableUndo ?"); + return *m_pReg; + } + virtual bool IsInClipboard() const { return false; } + virtual bool IsInUndo() const { return true; } + virtual bool IsInContent() const { return m_isInContent; } + virtual ::com::sun::star::uno::Reference< + ::com::sun::star::rdf::XMetadatable > MakeUnoObject() + { OSL_ENSURE(false, "MetadatableUndo::MakeUnoObject"); throw; } +}; + +// MetadatableClipboard ---------------------------------------------- + +/** the horrible Clipboard Metadatable: inserted into lists to track position */ +class MetadatableClipboard : public Metadatable +{ + /// as determined by the stream of the source in original document + const bool m_isInContent; +public: + MetadatableClipboard(const bool i_isInContent) + : m_isInContent(i_isInContent) { } + virtual ::sfx2::XmlIdRegistry& GetRegistry() + { + // N.B. for Clipboard, m_pReg is initialized by registering this as copy in + // RegisterAsCopyOf; it is only cleared by OriginNoLongerInBusinessAnymore + OSL_ENSURE(m_pReg, "no m_pReg in MetadatableClipboard ?"); + return *m_pReg; + } + virtual bool IsInClipboard() const { return true; } + virtual bool IsInUndo() const { return false; } + virtual bool IsInContent() const { return m_isInContent; } + virtual ::com::sun::star::uno::Reference< + ::com::sun::star::rdf::XMetadatable > MakeUnoObject() + { OSL_ENSURE(false, "MetadatableClipboard::MakeUnoObject"); throw; } + void OriginNoLongerInBusinessAnymore() { m_pReg = 0; } +}; + +// XmlIdRegistryClipboard -------------------------------------------- + +class XmlIdRegistryClipboard : public XmlIdRegistry +{ + +public: + XmlIdRegistryClipboard(); + virtual ~XmlIdRegistryClipboard(); + + virtual void RegisterMetadatableAndCreateID(Metadatable& i_xObject); + + virtual bool TryRegisterMetadatable(Metadatable& i_xObject, + ::rtl::OUString const& i_rStreamName, ::rtl::OUString const& i_rIdref); + + virtual void UnregisterMetadatable(Metadatable const&); + + virtual void RemoveXmlIdForElement(Metadatable const&); + + /** register i_rCopy as a copy of i_rSource */ + MetadatableClipboard & RegisterCopyClipboard(Metadatable & i_rCopy, + beans::StringPair const & i_rReference, + const bool i_isLatent); + + /** get the Metadatable that links i_rObject to its origin registry */ + MetadatableClipboard const* SourceLink(Metadatable const& i_rObject); + +private: + virtual bool LookupXmlId(const Metadatable& i_xObject, + ::rtl::OUString & o_rStream, ::rtl::OUString & o_rIdref) const; + + virtual Metadatable* LookupElement(const ::rtl::OUString & i_rStreamName, + const ::rtl::OUString & i_rIdref) const; + + /** create a Clipboard Metadatable for i_rObject. */ + ::boost::shared_ptr<MetadatableClipboard> CreateClipboard( + const bool i_isInContent); + + struct XmlIdRegistry_Impl; + ::std::auto_ptr<XmlIdRegistry_Impl> m_pImpl; +}; + + +//============================================================================= +// XmlIdRegistry + +::sfx2::IXmlIdRegistry * createXmlIdRegistry(const bool i_DocIsClipboard) +{ + return i_DocIsClipboard + ? static_cast<XmlIdRegistry*>( new XmlIdRegistryClipboard ) + : static_cast<XmlIdRegistry*>( new XmlIdRegistryDocument ); +} + +XmlIdRegistry::XmlIdRegistry() +{ +} + +XmlIdRegistry::~XmlIdRegistry() +{ +} + +::com::sun::star::uno::Reference< ::com::sun::star::rdf::XMetadatable > SAL_CALL +XmlIdRegistry::GetElementByMetadataReference( + const beans::StringPair & i_rReference) const +{ + Metadatable* pObject( LookupElement(i_rReference.First, + i_rReference.Second) ); + return pObject ? pObject->MakeUnoObject() : 0; +} + +beans::StringPair +XmlIdRegistry::GetXmlIdForElement(const Metadatable& i_rObject) const +{ + ::rtl::OUString path; + ::rtl::OUString idref; + if (LookupXmlId(i_rObject, path, idref)) + { + if (LookupElement(path, idref) == &i_rObject) + { + return beans::StringPair(path, idref); + } + } + return beans::StringPair(); +} + + +/// generate unique xml:id +template< typename T > +/*static*/ ::rtl::OUString create_id(const + ::std::hash_map< ::rtl::OUString, T, ::rtl::OUStringHash > & i_rXmlIdMap) +{ + static rtlRandomPool s_Pool( rtl_random_createPool() ); + const ::rtl::OUString prefix( ::rtl::OUString::createFromAscii(s_prefix) ); + typename ::std::hash_map< ::rtl::OUString, T, ::rtl::OUStringHash > + ::const_iterator iter; + ::rtl::OUString id; + do + { + sal_Int32 n; + rtl_random_getBytes(s_Pool, & n, sizeof(n)); + id = prefix + ::rtl::OUString::valueOf(static_cast<sal_Int32>(abs(n))); + iter = i_rXmlIdMap.find(id); + } + while (iter != i_rXmlIdMap.end()); + return id; +} + +//============================================================================= +// Document XML ID Registry (_Impl) + +/// element list +typedef ::std::list< Metadatable* > XmlIdList_t; + +/// Idref -> (content.xml element list, styles.xml element list) +typedef ::std::hash_map< ::rtl::OUString, + ::std::pair< XmlIdList_t, XmlIdList_t >, ::rtl::OUStringHash > XmlIdMap_t; + +/// pointer hash template +template<typename T> struct PtrHash +{ + size_t operator() (T const * i_pT) const + { + return reinterpret_cast<size_t>(i_pT); + } +}; + +/// element -> (stream name, idref) +typedef ::std::hash_map< const Metadatable*, + ::std::pair< ::rtl::OUString, ::rtl::OUString>, PtrHash<Metadatable> > + XmlIdReverseMap_t; + +struct XmlIdRegistryDocument::XmlIdRegistry_Impl +{ + XmlIdRegistry_Impl() + : m_XmlIdMap(), m_XmlIdReverseMap() { } + + bool TryInsertMetadatable(Metadatable& i_xObject, + const ::rtl::OUString & i_rStream, const ::rtl::OUString & i_rIdref); + + bool LookupXmlId(const Metadatable& i_xObject, + ::rtl::OUString & o_rStream, ::rtl::OUString & o_rIdref) const; + + Metadatable* LookupElement(const ::rtl::OUString & i_rStreamName, + const ::rtl::OUString & i_rIdref) const; + + const XmlIdList_t * LookupElementList( + const ::rtl::OUString & i_rStreamName, + const ::rtl::OUString & i_rIdref) const; + + XmlIdList_t * LookupElementList( + const ::rtl::OUString & i_rStreamName, + const ::rtl::OUString & i_rIdref) + { + return const_cast<XmlIdList_t*>( + const_cast<const XmlIdRegistry_Impl*>(this) + ->LookupElementList(i_rStreamName, i_rIdref)); + } + + XmlIdMap_t m_XmlIdMap; + XmlIdReverseMap_t m_XmlIdReverseMap; +}; + +// ------------------------------------------------------------------- + +static void +rmIter(XmlIdMap_t & i_rXmlIdMap, XmlIdMap_t::iterator const& i_rIter, + ::rtl::OUString const & i_rStream, Metadatable const& i_rObject) +{ + if (i_rIter != i_rXmlIdMap.end()) + { + XmlIdList_t & rList( isContentFile(i_rStream) + ? i_rIter->second.first : i_rIter->second.second ); + rList.remove(&const_cast<Metadatable&>(i_rObject)); + if (i_rIter->second.first.empty() && i_rIter->second.second.empty()) + { + i_rXmlIdMap.erase(i_rIter); + } + } +} + +// ------------------------------------------------------------------- + +const XmlIdList_t * +XmlIdRegistryDocument::XmlIdRegistry_Impl::LookupElementList( + const ::rtl::OUString & i_rStreamName, + const ::rtl::OUString & i_rIdref) const +{ + const XmlIdMap_t::const_iterator iter( m_XmlIdMap.find(i_rIdref) ); + if (iter != m_XmlIdMap.end()) + { + OSL_ENSURE(!iter->second.first.empty() || !iter->second.second.empty(), + "null entry in m_XmlIdMap"); + return (isContentFile(i_rStreamName)) + ? &iter->second.first + : &iter->second.second; + } + else + { + return 0; + } +} + +Metadatable* +XmlIdRegistryDocument::XmlIdRegistry_Impl::LookupElement( + const ::rtl::OUString & i_rStreamName, + const ::rtl::OUString & i_rIdref) const +{ + if (!isValidXmlId(i_rStreamName, i_rIdref)) + { + throw lang::IllegalArgumentException(::rtl::OUString::createFromAscii( + "illegal XmlId"), 0, 0); + } + + const XmlIdList_t * pList( LookupElementList(i_rStreamName, i_rIdref) ); + if (pList) + { + const XmlIdList_t::const_iterator iter( + ::std::find_if(pList->begin(), pList->end(), + ::boost::bind( + ::std::logical_not<bool>(), + ::boost::bind( + ::std::logical_or<bool>(), + ::boost::bind( &Metadatable::IsInUndo, _1 ), + ::boost::bind( &Metadatable::IsInClipboard, _1 ) + ) ) ) ); + if (iter != pList->end()) + { + return *iter; + } + } + return 0; +} + +bool +XmlIdRegistryDocument::XmlIdRegistry_Impl::LookupXmlId( + const Metadatable& i_rObject, + ::rtl::OUString & o_rStream, ::rtl::OUString & o_rIdref) const +{ + const XmlIdReverseMap_t::const_iterator iter( + m_XmlIdReverseMap.find(&i_rObject) ); + if (iter != m_XmlIdReverseMap.end()) + { + OSL_ENSURE(!iter->second.first.equalsAscii(""), + "null stream in m_XmlIdReverseMap"); + OSL_ENSURE(!iter->second.second.equalsAscii(""), + "null id in m_XmlIdReverseMap"); + o_rStream = iter->second.first; + o_rIdref = iter->second.second; + return true; + } + else + { + return false; + } +} + +bool +XmlIdRegistryDocument::XmlIdRegistry_Impl::TryInsertMetadatable( + Metadatable & i_rObject, + const ::rtl::OUString & i_rStreamName, const ::rtl::OUString & i_rIdref) +{ + const bool bContent( isContentFile(i_rStreamName) ); + OSL_ENSURE(isContentFile(i_rStreamName) || isStylesFile(i_rStreamName), + "invalid stream"); + + XmlIdList_t * pList( LookupElementList(i_rStreamName, i_rIdref) ); + if (pList) + { + if (pList->empty()) + { + pList->push_back( &i_rObject ); + return true; + } + else + { + // this is only called from TryRegister now, so check + // if all elements in the list are deleted (in undo) or + // placeholders, then "steal" the id from them + if ( pList->end() == ::std::find_if(pList->begin(), pList->end(), + ::boost::bind( + ::std::logical_not<bool>(), + ::boost::bind( + ::std::logical_or<bool>(), + ::boost::bind( &Metadatable::IsInUndo, _1 ), + ::boost::bind( &Metadatable::IsInClipboard, _1 ) + ) ) ) ) + { +// ??? this is not undoable +// pList->clear(); +// pList->push_back( &i_rObject ); + pList->push_front( &i_rObject ); + return true; + } + else + { + return false; + } + } + } + else + { + m_XmlIdMap.insert(::std::make_pair(i_rIdref, bContent + ? ::std::make_pair( XmlIdList_t( 1, &i_rObject ), XmlIdList_t() ) + : ::std::make_pair( XmlIdList_t(), XmlIdList_t( 1, &i_rObject ) ))); + return true; + } +} + +//============================================================================= +// Document XML ID Registry + + +XmlIdRegistryDocument::XmlIdRegistryDocument() + : m_pImpl( new XmlIdRegistry_Impl ) +{ +} + +static void +removeLink(Metadatable* i_pObject) +{ + OSL_ENSURE(i_pObject, "null in list ???"); + if (!i_pObject) return; + if (i_pObject->IsInClipboard()) + { + MetadatableClipboard* pLink( + dynamic_cast<MetadatableClipboard*>( i_pObject ) ); + OSL_ENSURE(pLink, "IsInClipboard, but no MetadatableClipboard ?"); + if (pLink) + { + pLink->OriginNoLongerInBusinessAnymore(); + } + } +} + +XmlIdRegistryDocument::~XmlIdRegistryDocument() +{ + // notify all list elements that are actually in the clipboard + for (XmlIdMap_t::iterator iter(m_pImpl->m_XmlIdMap.begin()); + iter != m_pImpl->m_XmlIdMap.end(); ++iter) + { + ::std::for_each(iter->second.first.begin(), iter->second.first.end(), + removeLink); + ::std::for_each(iter->second.second.begin(), iter->second.second.end(), + removeLink); + } +} + +bool +XmlIdRegistryDocument::LookupXmlId( + const Metadatable& i_rObject, + ::rtl::OUString & o_rStream, ::rtl::OUString & o_rIdref) const +{ + return m_pImpl->LookupXmlId(i_rObject, o_rStream, o_rIdref); +} + +Metadatable* +XmlIdRegistryDocument::LookupElement( + const ::rtl::OUString & i_rStreamName, + const ::rtl::OUString & i_rIdref) const +{ + return m_pImpl->LookupElement(i_rStreamName, i_rIdref); +} + +bool +XmlIdRegistryDocument::TryRegisterMetadatable(Metadatable & i_rObject, + ::rtl::OUString const& i_rStreamName, ::rtl::OUString const& i_rIdref) +{ + OSL_TRACE("TryRegisterMetadatable: %p (%s#%s)\n", &i_rObject, + ::rtl::OUStringToOString(i_rStreamName, RTL_TEXTENCODING_UTF8).getStr(), + ::rtl::OUStringToOString(i_rIdref, RTL_TEXTENCODING_UTF8).getStr()); + + OSL_ENSURE(!dynamic_cast<MetadatableUndo*>(&i_rObject), + "TryRegisterMetadatable called for MetadatableUndo?"); + OSL_ENSURE(!dynamic_cast<MetadatableClipboard*>(&i_rObject), + "TryRegisterMetadatable called for MetadatableClipboard?"); + + if (!isValidXmlId(i_rStreamName, i_rIdref)) + { + throw lang::IllegalArgumentException(::rtl::OUString::createFromAscii( + "illegal XmlId"), 0, 0); + } + if (i_rObject.IsInContent() + ? !isContentFile(i_rStreamName) + : !isStylesFile(i_rStreamName)) + { + throw lang::IllegalArgumentException(::rtl::OUString::createFromAscii( + "illegal XmlId: wrong stream"), 0, 0); + } + + ::rtl::OUString old_path; + ::rtl::OUString old_idref; + m_pImpl->LookupXmlId(i_rObject, old_path, old_idref); + if (old_path == i_rStreamName && old_idref == i_rIdref) + { + return (m_pImpl->LookupElement(old_path, old_idref) == &i_rObject); + } + XmlIdMap_t::iterator old_id( m_pImpl->m_XmlIdMap.end() ); + if (!old_idref.equalsAscii("")) + { + old_id = m_pImpl->m_XmlIdMap.find(old_idref); + OSL_ENSURE(old_id != m_pImpl->m_XmlIdMap.end(), "old id not found"); + } + if (m_pImpl->TryInsertMetadatable(i_rObject, i_rStreamName, i_rIdref)) + { + rmIter(m_pImpl->m_XmlIdMap, old_id, old_path, i_rObject); + m_pImpl->m_XmlIdReverseMap[&i_rObject] = + ::std::make_pair(i_rStreamName, i_rIdref); + return true; + } + else + { + return false; + } +} + +void +XmlIdRegistryDocument::RegisterMetadatableAndCreateID(Metadatable & i_rObject) +{ + OSL_TRACE("RegisterMetadatableAndCreateID: %p\n", &i_rObject); + + OSL_ENSURE(!dynamic_cast<MetadatableUndo*>(&i_rObject), + "RegisterMetadatableAndCreateID called for MetadatableUndo?"); + OSL_ENSURE(!dynamic_cast<MetadatableClipboard*>(&i_rObject), + "RegisterMetadatableAndCreateID called for MetadatableClipboard?"); + + const bool isInContent( i_rObject.IsInContent() ); + const ::rtl::OUString stream( ::rtl::OUString::createFromAscii( + isInContent ? s_content : s_styles ) ); + // check if we have a latent xmlid, and if yes, remove it + ::rtl::OUString old_path; + ::rtl::OUString old_idref; + m_pImpl->LookupXmlId(i_rObject, old_path, old_idref); + + XmlIdMap_t::iterator old_id( m_pImpl->m_XmlIdMap.end() ); + if (!old_idref.equalsAscii("")) + { + old_id = m_pImpl->m_XmlIdMap.find(old_idref); + OSL_ENSURE(old_id != m_pImpl->m_XmlIdMap.end(), "old id not found"); + if (m_pImpl->LookupElement(old_path, old_idref) == &i_rObject) + { + return; + } + else + { + // remove latent xmlid + rmIter(m_pImpl->m_XmlIdMap, old_id, old_path, i_rObject); + } + } + + // create id + const ::rtl::OUString id( create_id(m_pImpl->m_XmlIdMap) ); + OSL_ENSURE(m_pImpl->m_XmlIdMap.find(id) == m_pImpl->m_XmlIdMap.end(), + "created id is in use"); + m_pImpl->m_XmlIdMap.insert(::std::make_pair(id, isInContent + ? ::std::make_pair( XmlIdList_t( 1, &i_rObject ), XmlIdList_t() ) + : ::std::make_pair( XmlIdList_t(), XmlIdList_t( 1, &i_rObject ) ))); + m_pImpl->m_XmlIdReverseMap[&i_rObject] = ::std::make_pair(stream, id); +} + +void XmlIdRegistryDocument::UnregisterMetadatable(const Metadatable& i_rObject) +{ + OSL_TRACE("UnregisterMetadatable: %p\n", &i_rObject); + + ::rtl::OUString path; + ::rtl::OUString idref; + if (!m_pImpl->LookupXmlId(i_rObject, path, idref)) + { + OSL_ENSURE(false, "unregister: no xml id?"); + return; + } + const XmlIdMap_t::iterator iter( m_pImpl->m_XmlIdMap.find(idref) ); + if (iter != m_pImpl->m_XmlIdMap.end()) + { + rmIter(m_pImpl->m_XmlIdMap, iter, path, i_rObject); + } +} + +void XmlIdRegistryDocument::RemoveXmlIdForElement(const Metadatable& i_rObject) +{ + OSL_TRACE("RemoveXmlIdForElement: %p\n", &i_rObject); + + const XmlIdReverseMap_t::iterator iter( + m_pImpl->m_XmlIdReverseMap.find(&i_rObject) ); + if (iter != m_pImpl->m_XmlIdReverseMap.end()) + { + OSL_ENSURE(!iter->second.second.equalsAscii(""), + "null id in m_XmlIdReverseMap"); + m_pImpl->m_XmlIdReverseMap.erase(iter); + } +} + +// ------------------------------------------------------------------- + +void XmlIdRegistryDocument::RegisterCopy(Metadatable const& i_rSource, + Metadatable & i_rCopy, const bool i_bCopyPrecedesSource) +{ + OSL_TRACE("RegisterCopy: %p -> %p (%d)\n", + &i_rSource, &i_rCopy, i_bCopyPrecedesSource); + + // potential sources: clipboard, undo array, splitNode + // assumption: stream change can only happen via clipboard, and is handled + // by Metadatable::RegisterAsCopyOf + OSL_ENSURE(i_rSource.IsInUndo() || i_rCopy.IsInUndo() || + (i_rSource.IsInContent() == i_rCopy.IsInContent()), + "RegisterCopy: not in same stream?"); + + ::rtl::OUString path; + ::rtl::OUString idref; + if (!m_pImpl->LookupXmlId( i_rSource, path, idref )) + { + OSL_ENSURE(false, "no xml id?"); + return; + } + XmlIdList_t * pList ( m_pImpl->LookupElementList(path, idref) ); + OSL_ENSURE( ::std::find( pList->begin(), pList->end(), &i_rCopy ) + == pList->end(), "copy already registered???"); + XmlIdList_t::iterator srcpos( + ::std::find( pList->begin(), pList->end(), &i_rSource ) ); + OSL_ENSURE(srcpos != pList->end(), "source not in list???"); + if (srcpos == pList->end()) + { + return; + } + if (i_bCopyPrecedesSource) + { + pList->insert( srcpos, &i_rCopy ); + } + else + { + // for undo push_back does not work! must insert right after source + pList->insert( ++srcpos, &i_rCopy ); + } + m_pImpl->m_XmlIdReverseMap.insert(::std::make_pair(&i_rCopy, + ::std::make_pair(path, idref))); +} + +::boost::shared_ptr<MetadatableUndo> +XmlIdRegistryDocument::CreateUndo(Metadatable const& i_rObject) +{ + OSL_TRACE("CreateUndo: %p\n", &i_rObject); + + return ::boost::shared_ptr<MetadatableUndo>( + new MetadatableUndo(i_rObject.IsInContent()) ); +} + +/* +i_rMerged is both a source and the target node of the merge +i_rOther is the other source, and will be deleted after the merge + +dimensions: none|latent|actual empty|nonempty +i_rMerged(1) i_rOther(2) result + *|empty *|empty => 1|2 (arbitrary) + *|empty *|nonempty => 2 + *|nonempty *|empty => 1 + none|nonempty none|nonempty => none + none|nonempty latent|nonempty => 2 +latent|nonempty none|nonempty => 1 +latent|nonempty latent|nonempty => 1|2 + *|nonempty actual|nonempty => 2 +actual|nonempty *|nonempty => 1 +actual|nonempty actual|nonempty => 1|2 +*/ +void +XmlIdRegistryDocument::JoinMetadatables( + Metadatable & i_rMerged, Metadatable const & i_rOther) +{ + OSL_TRACE("JoinMetadatables: %p <- %p\n", &i_rMerged, &i_rOther); + + bool mergedOwnsRef; + ::rtl::OUString path; + ::rtl::OUString idref; + if (m_pImpl->LookupXmlId(i_rMerged, path, idref)) + { + mergedOwnsRef = (m_pImpl->LookupElement(path, idref) == &i_rMerged); + } + else + { + OSL_ENSURE(false, "JoinMetadatables: no xmlid?"); + return; + } + if (!mergedOwnsRef) + { + i_rMerged.RemoveMetadataReference(); + i_rMerged.RegisterAsCopyOf(i_rOther, true); + return; + } + // other cases: merged has actual ref and is nonempty, + // other has latent/actual ref and is nonempty: other loses => nothing to do +} + + +//============================================================================= +// Clipboard XML ID Registry (_Impl) + +struct RMapEntry +{ + RMapEntry() : m_pLink() { } + RMapEntry(::rtl::OUString const& i_rStream, + ::rtl::OUString const& i_rXmlId, + ::boost::shared_ptr<MetadatableClipboard> const& i_pLink + = ::boost::shared_ptr<MetadatableClipboard>()) + : m_Stream(i_rStream), m_XmlId(i_rXmlId), m_pLink(i_pLink) + {} + ::rtl::OUString m_Stream; + ::rtl::OUString m_XmlId; + // this would have been an auto_ptr, if only that would have compiled... + ::boost::shared_ptr<MetadatableClipboard> m_pLink; +}; + +/// element -> (stream name, idref, source) +typedef ::std::hash_map< const Metadatable*, + struct RMapEntry, + PtrHash<Metadatable> > + ClipboardXmlIdReverseMap_t; + +/// Idref -> (content.xml element, styles.xml element) +typedef ::std::hash_map< ::rtl::OUString, + ::std::pair< Metadatable*, Metadatable* >, ::rtl::OUStringHash > + ClipboardXmlIdMap_t; + +struct XmlIdRegistryClipboard::XmlIdRegistry_Impl +{ + XmlIdRegistry_Impl() + : m_XmlIdMap(), m_XmlIdReverseMap() { } + + bool TryInsertMetadatable(Metadatable& i_xObject, + const ::rtl::OUString & i_rStream, const ::rtl::OUString & i_rIdref); + + bool LookupXmlId(const Metadatable& i_xObject, + ::rtl::OUString & o_rStream, ::rtl::OUString & o_rIdref, + MetadatableClipboard const* &o_rpLink) const; + + Metadatable* LookupElement(const ::rtl::OUString & i_rStreamName, + const ::rtl::OUString & i_rIdref) const; + + Metadatable* const* LookupEntry(const ::rtl::OUString & i_rStreamName, + const ::rtl::OUString & i_rIdref) const; + + Metadatable* * LookupEntry(const ::rtl::OUString & i_rStreamName, + const ::rtl::OUString & i_rIdref) + { + return const_cast<Metadatable**>( + const_cast<const XmlIdRegistry_Impl*>(this) + ->LookupEntry(i_rStreamName, i_rIdref)); + } + + ClipboardXmlIdMap_t m_XmlIdMap; + ClipboardXmlIdReverseMap_t m_XmlIdReverseMap; +}; + +// ------------------------------------------------------------------- + +static void +rmIter(ClipboardXmlIdMap_t & i_rXmlIdMap, + ClipboardXmlIdMap_t::iterator const& i_rIter, + ::rtl::OUString const & i_rStream, Metadatable const& i_rObject) +{ + if (i_rIter != i_rXmlIdMap.end()) + { + Metadatable *& rMeta = isContentFile(i_rStream) + ? i_rIter->second.first : i_rIter->second.second; + if (rMeta == &i_rObject) + { + rMeta = 0; + } + if (!i_rIter->second.first && !i_rIter->second.second) + { + i_rXmlIdMap.erase(i_rIter); + } + } +} + +// ------------------------------------------------------------------- + +Metadatable* const* +XmlIdRegistryClipboard::XmlIdRegistry_Impl::LookupEntry( + const ::rtl::OUString & i_rStreamName, + const ::rtl::OUString & i_rIdref) const +{ + if (!isValidXmlId(i_rStreamName, i_rIdref)) + { + throw lang::IllegalArgumentException(::rtl::OUString::createFromAscii( + "illegal XmlId"), 0, 0); + } + + const ClipboardXmlIdMap_t::const_iterator iter( m_XmlIdMap.find(i_rIdref) ); + if (iter != m_XmlIdMap.end()) + { + OSL_ENSURE(iter->second.first || iter->second.second, + "null entry in m_XmlIdMap"); + return (isContentFile(i_rStreamName)) + ? &iter->second.first + : &iter->second.second; + } + else + { + return 0; + } +} + +Metadatable* +XmlIdRegistryClipboard::XmlIdRegistry_Impl::LookupElement( + const ::rtl::OUString & i_rStreamName, + const ::rtl::OUString & i_rIdref) const +{ + Metadatable * const * ppEntry = LookupEntry(i_rStreamName, i_rIdref); + return ppEntry ? *ppEntry : 0; +} + +bool +XmlIdRegistryClipboard::XmlIdRegistry_Impl::LookupXmlId( + const Metadatable& i_rObject, + ::rtl::OUString & o_rStream, ::rtl::OUString & o_rIdref, + MetadatableClipboard const* &o_rpLink) const +{ + const ClipboardXmlIdReverseMap_t::const_iterator iter( + m_XmlIdReverseMap.find(&i_rObject) ); + if (iter != m_XmlIdReverseMap.end()) + { + OSL_ENSURE(!iter->second.m_Stream.equalsAscii(""), + "null stream in m_XmlIdReverseMap"); + OSL_ENSURE(!iter->second.m_XmlId.equalsAscii(""), + "null id in m_XmlIdReverseMap"); + o_rStream = iter->second.m_Stream; + o_rIdref = iter->second.m_XmlId; + o_rpLink = iter->second.m_pLink.get(); + return true; + } + else + { + return false; + } +} + +bool +XmlIdRegistryClipboard::XmlIdRegistry_Impl::TryInsertMetadatable( + Metadatable & i_rObject, + const ::rtl::OUString & i_rStreamName, const ::rtl::OUString & i_rIdref) +{ + bool bContent( isContentFile(i_rStreamName) ); + OSL_ENSURE(isContentFile(i_rStreamName) || isStylesFile(i_rStreamName), + "invalid stream"); + + //wntmsci12 won't parse this: +// Metadatable ** ppEntry( LookupEntry(i_rStreamName, i_rIdref) ); + Metadatable ** ppEntry = LookupEntry(i_rStreamName, i_rIdref); + if (ppEntry) + { + if (*ppEntry) + { + return false; + } + else + { + *ppEntry = &i_rObject; + return true; + } + } + else + { + m_XmlIdMap.insert(::std::make_pair(i_rIdref, bContent + ? ::std::make_pair( &i_rObject, static_cast<Metadatable*>(0) ) + : ::std::make_pair( static_cast<Metadatable*>(0), &i_rObject ))); + return true; + } +} + +//============================================================================= +// Clipboard XML ID Registry + + +XmlIdRegistryClipboard::XmlIdRegistryClipboard() + : m_pImpl( new XmlIdRegistry_Impl ) +{ +} + +XmlIdRegistryClipboard::~XmlIdRegistryClipboard() +{ +} + +bool +XmlIdRegistryClipboard::LookupXmlId( + const Metadatable& i_rObject, + ::rtl::OUString & o_rStream, ::rtl::OUString & o_rIdref) const +{ + const MetadatableClipboard * pLink; + return m_pImpl->LookupXmlId(i_rObject, o_rStream, o_rIdref, pLink); +} + +Metadatable* +XmlIdRegistryClipboard::LookupElement( + const ::rtl::OUString & i_rStreamName, + const ::rtl::OUString & i_rIdref) const +{ + return m_pImpl->LookupElement(i_rStreamName, i_rIdref); +} + +bool +XmlIdRegistryClipboard::TryRegisterMetadatable(Metadatable & i_rObject, + ::rtl::OUString const& i_rStreamName, ::rtl::OUString const& i_rIdref) +{ + OSL_TRACE("TryRegisterMetadatable: %p (%s#%s)\n", &i_rObject, + ::rtl::OUStringToOString(i_rStreamName, RTL_TEXTENCODING_UTF8).getStr(), + ::rtl::OUStringToOString(i_rIdref, RTL_TEXTENCODING_UTF8).getStr()); + + OSL_ENSURE(!dynamic_cast<MetadatableUndo*>(&i_rObject), + "TryRegisterMetadatable called for MetadatableUndo?"); + OSL_ENSURE(!dynamic_cast<MetadatableClipboard*>(&i_rObject), + "TryRegisterMetadatable called for MetadatableClipboard?"); + + if (!isValidXmlId(i_rStreamName, i_rIdref)) + { + throw lang::IllegalArgumentException(::rtl::OUString::createFromAscii( + "illegal XmlId"), 0, 0); + } + if (i_rObject.IsInContent() + ? !isContentFile(i_rStreamName) + : !isStylesFile(i_rStreamName)) + { + throw lang::IllegalArgumentException(::rtl::OUString::createFromAscii( + "illegal XmlId: wrong stream"), 0, 0); + } + + ::rtl::OUString old_path; + ::rtl::OUString old_idref; + const MetadatableClipboard * pLink; + m_pImpl->LookupXmlId(i_rObject, old_path, old_idref, pLink); + if (old_path == i_rStreamName && old_idref == i_rIdref) + { + return (m_pImpl->LookupElement(old_path, old_idref) == &i_rObject); + } + ClipboardXmlIdMap_t::iterator old_id( m_pImpl->m_XmlIdMap.end() ); + if (!old_idref.equalsAscii("")) + { + old_id = m_pImpl->m_XmlIdMap.find(old_idref); + OSL_ENSURE(old_id != m_pImpl->m_XmlIdMap.end(), "old id not found"); + } + if (m_pImpl->TryInsertMetadatable(i_rObject, i_rStreamName, i_rIdref)) + { + rmIter(m_pImpl->m_XmlIdMap, old_id, old_path, i_rObject); + m_pImpl->m_XmlIdReverseMap[&i_rObject] = + RMapEntry(i_rStreamName, i_rIdref); + return true; + } + else + { + return false; + } +} + +void +XmlIdRegistryClipboard::RegisterMetadatableAndCreateID(Metadatable & i_rObject) +{ + OSL_TRACE("RegisterMetadatableAndCreateID: %p\n", &i_rObject); + + OSL_ENSURE(!dynamic_cast<MetadatableUndo*>(&i_rObject), + "RegisterMetadatableAndCreateID called for MetadatableUndo?"); + OSL_ENSURE(!dynamic_cast<MetadatableClipboard*>(&i_rObject), + "RegisterMetadatableAndCreateID called for MetadatableClipboard?"); + + bool isInContent( i_rObject.IsInContent() ); + ::rtl::OUString stream( ::rtl::OUString::createFromAscii( + isInContent ? s_content : s_styles ) ); + + ::rtl::OUString old_path; + ::rtl::OUString old_idref; + LookupXmlId(i_rObject, old_path, old_idref); + if (!old_idref.equalsAscii("") && + (m_pImpl->LookupElement(old_path, old_idref) == &i_rObject)) + { + return; + } + + // create id + const ::rtl::OUString id( create_id(m_pImpl->m_XmlIdMap) ); + OSL_ENSURE(m_pImpl->m_XmlIdMap.find(id) == m_pImpl->m_XmlIdMap.end(), + "created id is in use"); + m_pImpl->m_XmlIdMap.insert(::std::make_pair(id, isInContent + ? ::std::make_pair( &i_rObject, static_cast<Metadatable*>(0) ) + : ::std::make_pair( static_cast<Metadatable*>(0), &i_rObject ))); + // N.B.: if i_rObject had a latent XmlId, then we implicitly delete the + // MetadatableClipboard and thus the latent XmlId here + m_pImpl->m_XmlIdReverseMap[&i_rObject] = RMapEntry(stream, id); +} + +void XmlIdRegistryClipboard::UnregisterMetadatable(const Metadatable& i_rObject) +{ + OSL_TRACE("UnregisterMetadatable: %p\n", &i_rObject); + + ::rtl::OUString path; + ::rtl::OUString idref; + const MetadatableClipboard * pLink; + if (!m_pImpl->LookupXmlId(i_rObject, path, idref, pLink)) + { + OSL_ENSURE(false, "unregister: no xml id?"); + return; + } + const ClipboardXmlIdMap_t::iterator iter( m_pImpl->m_XmlIdMap.find(idref) ); + if (iter != m_pImpl->m_XmlIdMap.end()) + { + rmIter(m_pImpl->m_XmlIdMap, iter, path, i_rObject); + } +} + + +void XmlIdRegistryClipboard::RemoveXmlIdForElement(const Metadatable& i_rObject) +{ + OSL_TRACE("RemoveXmlIdForElement: %p\n", &i_rObject); + + ClipboardXmlIdReverseMap_t::iterator iter( + m_pImpl->m_XmlIdReverseMap.find(&i_rObject) ); + if (iter != m_pImpl->m_XmlIdReverseMap.end()) + { + OSL_ENSURE(!iter->second.m_XmlId.equalsAscii(""), + "null id in m_XmlIdReverseMap"); + m_pImpl->m_XmlIdReverseMap.erase(iter); + } +} + +// ------------------------------------------------------------------- + +::boost::shared_ptr<MetadatableClipboard> +XmlIdRegistryClipboard::CreateClipboard(const bool i_isInContent) +{ + OSL_TRACE("CreateClipboard: \n"); + + return ::boost::shared_ptr<MetadatableClipboard>( + new MetadatableClipboard(i_isInContent) ); +} + +MetadatableClipboard & +XmlIdRegistryClipboard::RegisterCopyClipboard(Metadatable & i_rCopy, + beans::StringPair const & i_rReference, + const bool i_isLatent) +{ + OSL_TRACE("RegisterCopyClipboard: %p -> "/*"%p"*/"(%s#%s) (%d)\n", + /*&i_rSource,*/ &i_rCopy, + ::rtl::OUStringToOString(i_rReference.First, + RTL_TEXTENCODING_UTF8).getStr(), + ::rtl::OUStringToOString(i_rReference.Second, + RTL_TEXTENCODING_UTF8).getStr(), + i_isLatent); + + // N.B.: when copying to the clipboard, the selection is always inserted + // into the body, even if the source is a header/footer! + // so we do not check whether the stream is right in this function + + if (!isValidXmlId(i_rReference.First, i_rReference.Second)) + { + throw lang::IllegalArgumentException(::rtl::OUString::createFromAscii( + "illegal XmlId"), 0, 0); + } + + if (!i_isLatent) + { + // this should succeed assuming clipboard has a single source document + const bool success( m_pImpl->TryInsertMetadatable(i_rCopy, + i_rReference.First, i_rReference.Second) ); + OSL_ENSURE(success, "RegisterCopyClipboard: TryInsert failed?"); + (void) success; + } + const ::boost::shared_ptr<MetadatableClipboard> pLink( + CreateClipboard( isContentFile(i_rReference.First)) ); + m_pImpl->m_XmlIdReverseMap.insert(::std::make_pair(&i_rCopy, + RMapEntry(i_rReference.First, i_rReference.Second, pLink))); + return *pLink.get(); +} + +MetadatableClipboard const* +XmlIdRegistryClipboard::SourceLink(Metadatable const& i_rObject) +{ + ::rtl::OUString path; + ::rtl::OUString idref; + const MetadatableClipboard * pLink( 0 ); + m_pImpl->LookupXmlId(i_rObject, path, idref, pLink); + return pLink; +} + + +//============================================================================= +// Metadatable mixin + + +Metadatable::~Metadatable() +{ + RemoveMetadataReference(); +} + +void Metadatable::RemoveMetadataReference() +{ + try + { + if (m_pReg) + { + m_pReg->UnregisterMetadatable( *this ); + m_pReg->RemoveXmlIdForElement( *this ); + m_pReg = 0; + } + } + catch (uno::Exception &) + { + OSL_ENSURE(false, "Metadatable::RemoveMetadataReference: exception"); + } +} + +// ::com::sun::star::rdf::XMetadatable: +beans::StringPair +Metadatable::GetMetadataReference() const +{ + if (m_pReg) + { + return m_pReg->GetXmlIdForElement(*this); + } + return beans::StringPair(); +} + +void +Metadatable::SetMetadataReference( + const ::com::sun::star::beans::StringPair & i_rReference) +{ + if (i_rReference.Second.equalsAscii("")) + { + RemoveMetadataReference(); + } + else + { + ::rtl::OUString streamName( i_rReference.First ); + if (streamName.equalsAscii("")) + { + // handle empty stream name as auto-detect. + // necessary for importing flat file format. + streamName = ::rtl::OUString::createFromAscii( + IsInContent() ? s_content : s_styles ); + } + XmlIdRegistry & rReg( dynamic_cast<XmlIdRegistry&>( GetRegistry() ) ); + if (rReg.TryRegisterMetadatable(*this, streamName, i_rReference.Second)) + { + m_pReg = &rReg; + } + else + { + throw lang::IllegalArgumentException( + ::rtl::OUString::createFromAscii("Metadatable::" + "SetMetadataReference: argument is invalid"), /*this*/0, 0); + } + } +} + +void Metadatable::EnsureMetadataReference() +{ + XmlIdRegistry& rReg( + m_pReg ? *m_pReg : dynamic_cast<XmlIdRegistry&>( GetRegistry() ) ); + rReg.RegisterMetadatableAndCreateID( *this ); + m_pReg = &rReg; +} + +const ::sfx2::IXmlIdRegistry& GetRegistryConst(Metadatable const& i_rObject) +{ + return const_cast< Metadatable& >( i_rObject ).GetRegistry(); +} + +void +Metadatable::RegisterAsCopyOf(Metadatable const & i_rSource, + const bool i_bCopyPrecedesSource) +{ + OSL_ENSURE(typeid(*this) == typeid(i_rSource) + || typeid(i_rSource) == typeid(MetadatableUndo) + || typeid(*this) == typeid(MetadatableUndo) + || typeid(i_rSource) == typeid(MetadatableClipboard) + || typeid(*this) == typeid(MetadatableClipboard), + "RegisterAsCopyOf element with different class?"); + OSL_ENSURE(!this->m_pReg, "RegisterAsCopyOf called on element with XmlId?"); + + if (this->m_pReg) + { + RemoveMetadataReference(); + } + + try + { + if (i_rSource.m_pReg) + { + XmlIdRegistry & rReg( + dynamic_cast<XmlIdRegistry&>( GetRegistry() ) ); + if (i_rSource.m_pReg == &rReg) + { + OSL_ENSURE(!IsInClipboard(), + "RegisterAsCopy: both in clipboard?"); + if (!IsInClipboard()) + { + XmlIdRegistryDocument & rRegDoc( + dynamic_cast<XmlIdRegistryDocument&>( rReg ) ); + rRegDoc.RegisterCopy(i_rSource, *this, + i_bCopyPrecedesSource); + this->m_pReg = &rRegDoc; + } + return; + } + // source is in different document + XmlIdRegistryDocument * pRegDoc( + dynamic_cast<XmlIdRegistryDocument *>(&rReg) ); + XmlIdRegistryClipboard * pRegClp( + dynamic_cast<XmlIdRegistryClipboard*>(&rReg) ); + + if (pRegClp) + { + beans::StringPair SourceRef( + i_rSource.m_pReg->GetXmlIdForElement(i_rSource) ); + bool isLatent( SourceRef.Second.equalsAscii("") ); + XmlIdRegistryDocument * pSourceRegDoc( + dynamic_cast<XmlIdRegistryDocument*>(i_rSource.m_pReg) ); + OSL_ENSURE(pSourceRegDoc, "RegisterAsCopyOf: 2 clipboards?"); + if (!pSourceRegDoc) return; + // this is a copy _to_ the clipboard + if (isLatent) + { + pSourceRegDoc->LookupXmlId(i_rSource, + SourceRef.First, SourceRef.Second); + } + Metadatable & rLink( + pRegClp->RegisterCopyClipboard(*this, SourceRef, isLatent)); + this->m_pReg = pRegClp; + // register as copy in the non-clipboard registry + pSourceRegDoc->RegisterCopy(i_rSource, rLink, + false); // i_bCopyPrecedesSource); + rLink.m_pReg = pSourceRegDoc; + } + else if (pRegDoc) + { + XmlIdRegistryClipboard * pSourceRegClp( + dynamic_cast<XmlIdRegistryClipboard*>(i_rSource.m_pReg) ); + OSL_ENSURE(pSourceRegClp, + "RegisterAsCopyOf: 2 non-clipboards?"); + if (!pSourceRegClp) return; + const MetadatableClipboard * pLink( + pSourceRegClp->SourceLink(i_rSource) ); + // may happen if src got its id via UNO call + if (!pLink) return; + // only register copy if clipboard content is from this SwDoc! + if (pLink && (&GetRegistryConst(*pLink) == pRegDoc)) + { + // this is a copy _from_ the clipboard; check if the + // element is still in the same stream + // N.B.: we check the stream of pLink, not of i_rSource! + bool srcInContent( pLink->IsInContent() ); + bool tgtInContent( this->IsInContent() ); + if (srcInContent == tgtInContent) + { + pRegDoc->RegisterCopy(*pLink, *this, + true); // i_bCopyPrecedesSource); + this->m_pReg = pRegDoc; + } + // otherwise: stream change! do not register! + } + } + else + { + OSL_ENSURE(false, "neither RegDoc nor RegClp cannot happen"); + } +#if 0 + { + //FIXME: do we need this at all??? + XmlIdRegistryDocument & rRegDoc( + dynamic_cast<XmlIdRegistryDocument&>( rReg ) ); + { + if (rRegDoc.TryRegisterMetadatable(*this, SourceRef)) + { + this->m_pReg = &rRegDoc; + } + } + } +#endif + } + } + catch (uno::Exception &) + { + OSL_ENSURE(false, "Metadatable::RegisterAsCopyOf: exception"); + } +} + +::boost::shared_ptr<MetadatableUndo> Metadatable::CreateUndo() const +{ + OSL_ENSURE(!IsInUndo(), "CreateUndo called for object in undo?"); + OSL_ENSURE(!IsInClipboard(), "CreateUndo called for object in clipboard?"); + try + { + if (!IsInClipboard() && !IsInUndo() && m_pReg) + { + XmlIdRegistryDocument * pRegDoc( + dynamic_cast<XmlIdRegistryDocument*>( m_pReg ) ); + ::boost::shared_ptr<MetadatableUndo> pUndo( + pRegDoc->CreateUndo(*this) ); + pRegDoc->RegisterCopy(*this, *pUndo, false); + pUndo->m_pReg = pRegDoc; + return pUndo; + } + } + catch (uno::Exception &) + { + OSL_ENSURE(false, "Metadatable::CreateUndo: exception"); + } + return ::boost::shared_ptr<MetadatableUndo>(); +} + +::boost::shared_ptr<MetadatableUndo> Metadatable::CreateUndoForDelete() +{ + ::boost::shared_ptr<MetadatableUndo> const pUndo( CreateUndo() ); + RemoveMetadataReference(); + return pUndo; +} + +void Metadatable::RestoreMetadata( + ::boost::shared_ptr<MetadatableUndo> const& i_pUndo) +{ + OSL_ENSURE(!IsInUndo(), "RestoreMetadata called for object in undo?"); + OSL_ENSURE(!IsInClipboard(), + "RestoreMetadata called for object in clipboard?"); + if (IsInClipboard() || IsInUndo()) return; + RemoveMetadataReference(); + if (i_pUndo) + { + this->RegisterAsCopyOf(*i_pUndo, true); + } +} + +void +Metadatable::JoinMetadatable(Metadatable const & i_rOther, + const bool i_isMergedEmpty, const bool i_isOtherEmpty) +{ + OSL_ENSURE(!IsInUndo(), "JoinMetadatables called for object in undo?"); + OSL_ENSURE(!IsInClipboard(), + "JoinMetadatables called for object in clipboard?"); + if (IsInClipboard() || IsInUndo()) return; + + if (i_isOtherEmpty && !i_isMergedEmpty) + { + // other is empty, thus loses => nothing to do + return; + } + if (i_isMergedEmpty && !i_isOtherEmpty) + { + this->RemoveMetadataReference(); + this->RegisterAsCopyOf(i_rOther, true); + return; + } + + if (!i_rOther.m_pReg) + { + // other doesn't have xmlid, thus loses => nothing to do + return; + } + if (!m_pReg) + { + this->RegisterAsCopyOf(i_rOther, true); + // assumption: i_rOther will be deleted, so don't unregister it here + return; + } + try + { + XmlIdRegistryDocument * pRegDoc( + dynamic_cast<XmlIdRegistryDocument*>( m_pReg ) ); + OSL_ENSURE(pRegDoc, "JoinMetadatable: no pRegDoc?"); + if (pRegDoc) + { + pRegDoc->JoinMetadatables(*this, i_rOther); + } + } + catch (uno::Exception &) + { + OSL_ENSURE(false, "Metadatable::JoinMetadatable: exception"); + } +} + + +//============================================================================= +// XMetadatable mixin + +// ::com::sun::star::rdf::XNode: +::rtl::OUString SAL_CALL MetadatableMixin::getStringValue() + throw (::com::sun::star::uno::RuntimeException) +{ + return getNamespace() + getLocalName(); +} + +// ::com::sun::star::rdf::XURI: +::rtl::OUString SAL_CALL MetadatableMixin::getLocalName() + throw (::com::sun::star::uno::RuntimeException) +{ + ::vos::OGuard aGuard( Application::GetSolarMutex() ); + beans::StringPair mdref( getMetadataReference() ); + if (!mdref.Second.getLength()) + { + ensureMetadataReference(); // N.B.: side effect! + mdref = getMetadataReference(); + } + ::rtl::OUStringBuffer buf; + buf.append(mdref.First); + buf.append(static_cast<sal_Unicode>('#')); + buf.append(mdref.Second); + return buf.makeStringAndClear(); +} + +::rtl::OUString SAL_CALL MetadatableMixin::getNamespace() + throw (::com::sun::star::uno::RuntimeException) +{ + ::vos::OGuard aGuard( Application::GetSolarMutex() ); + const uno::Reference< frame::XModel > xModel( GetModel() ); + const uno::Reference< rdf::XURI > xDMA( xModel, uno::UNO_QUERY_THROW ); + return xDMA->getStringValue(); +} + +// ::com::sun::star::rdf::XMetadatable: +beans::StringPair SAL_CALL +MetadatableMixin::getMetadataReference() +throw (uno::RuntimeException) +{ + ::vos::OGuard aGuard( Application::GetSolarMutex() ); + + Metadatable *const pObject( GetCoreObject() ); + if (!pObject) + { + throw uno::RuntimeException( + ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM( + "MetadatableMixin: cannot get core object; not inserted?")), + *this); + } + return pObject->GetMetadataReference(); +} + +void SAL_CALL +MetadatableMixin::setMetadataReference( + const beans::StringPair & i_rReference) +throw (uno::RuntimeException, lang::IllegalArgumentException) +{ + ::vos::OGuard aGuard( Application::GetSolarMutex() ); + + Metadatable *const pObject( GetCoreObject() ); + if (!pObject) + { + throw uno::RuntimeException( + ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM( + "MetadatableMixin: cannot get core object; not inserted?")), + *this); + } + return pObject->SetMetadataReference(i_rReference); +} + +void SAL_CALL MetadatableMixin::ensureMetadataReference() +throw (uno::RuntimeException) +{ + ::vos::OGuard aGuard( Application::GetSolarMutex() ); + + Metadatable *const pObject( GetCoreObject() ); + if (!pObject) + { + throw uno::RuntimeException( + ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM( + "MetadatableMixin: cannot get core object; not inserted?")), + *this); + } + return pObject->EnsureMetadataReference(); +} + +} // namespace sfx2 + + +//============================================================================= + +#if OSL_DEBUG_LEVEL > 1 + +#include <stdio.h> + +static void dump(sfx2::XmlIdList_t * pList) +#ifdef GCC +__attribute__ ((unused)) +#endif +; +static void dump(sfx2::XmlIdList_t * pList) +{ + fprintf(stderr, "\nXmlIdList(%p): ", pList); + for (sfx2::XmlIdList_t::iterator i = pList->begin(); i != pList->end(); ++i) + { + fprintf(stderr, "%p ", *i); + } + fprintf(stderr, "\n"); +} + +#endif + |