office-gobmx/configmgr/source/treemgr/nodechangeimpl.cxx
2008-10-29 14:38:47 +00:00

788 lines
28 KiB
C++

/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: nodechangeimpl.cxx,v $
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*
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_configmgr.hxx"
#include "nodechangeimpl.hxx"
#include "nodechangeinfo.hxx"
#include "nodeimpl.hxx"
#include "tree.hxx"
#include "configset.hxx"
#include "setnodeimpl.hxx"
#include "groupnodeimpl.hxx"
#include "valuenode.hxx"
#include "change.hxx"
namespace configmgr
{
namespace configuration
{
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// All Changes:NodeChangeImpl - common base
//-----------------------------------------------------------------------------
// life cycle states for a NodeChangeImpl
enum { eTestedChange = 0x01, eAppliedChange = 0x02, eNoCheck = 0x07 };
//-----------------------------------------------------------------------------
NodeChangeImpl::NodeChangeImpl(bool bNoCheck)
: m_aAffectedTree()
, m_nAffectedNode(0)
, m_nState(0)
{
if (bNoCheck) m_nState = eNoCheck;
}
//-----------------------------------------------------------------------------
view::ViewTreeAccess NodeChangeImpl::getTargetView()
{
OSL_ENSURE( m_aAffectedTree.is(), "ERROR: Configuration Change: Target Tree Access has not been set up" );
return view::ViewTreeAccess(m_aAffectedTree.get());
}
//-----------------------------------------------------------------------------
rtl::Reference<Tree> NodeChangeImpl::getTargetTree() const
{
rtl::Reference<Tree> aRet = m_aAffectedTree;
OSL_ENSURE( aRet.is(), "ERROR: Configuration Change: Target Tree has not been set up" );
return aRet;
}
//-----------------------------------------------------------------------------
unsigned int NodeChangeImpl::getTargetNode() const
{
unsigned int nRet = m_nAffectedNode;
OSL_ENSURE( nRet != 0, "ERROR: Configuration Change: Target Node has not been set up" );
OSL_ENSURE( m_aAffectedTree.is() && m_aAffectedTree->isValidNode(nRet),
"ERROR: Configuration Change: Changing Node does not match tree" );
return nRet;
}
//-----------------------------------------------------------------------------
void NodeChangeImpl::setTarget(view::Node _aAffectedNode)
{
this->setTarget(_aAffectedNode.tree(), _aAffectedNode.get_offset());
}
void NodeChangeImpl::setTarget(rtl::Reference<Tree> const& _aAffectedTree, unsigned int _nAffectedNode)
{
OSL_ENSURE(m_nState == 0 || (!m_aAffectedTree.is() && m_nState == eNoCheck), "WARNING: Configuration: Retargeting change that already was tested or applied");
OSL_ENSURE( _aAffectedTree.is(), "ERROR: Configuration Change: NULL Target Tree is not allowed" );
OSL_ENSURE( _nAffectedNode, "ERROR: Configuration Change: NULL Target Node is not allowed" );
OSL_ENSURE( _aAffectedTree->isValidNode(_nAffectedNode), "ERROR: Configuration Change: Target Node does not match Tree" );
if (m_nState != eNoCheck) m_nState = 0; // previous checks are invalidated
m_aAffectedTree = _aAffectedTree;
m_nAffectedNode = _nAffectedNode;
}
//-----------------------------------------------------------------------------
bool NodeChangeImpl::isChange(bool bAllowUntested) const
{
OSL_ENSURE(bAllowUntested || (m_nState & eTestedChange), "WARNING: Configuration: Change was not tested - isChange is meaningless");
if (m_nState == eNoCheck)
return true;
if (!(m_nState & eTestedChange))
return bAllowUntested;
return doIsChange();
}
//-----------------------------------------------------------------------------
sal_uInt32 NodeChangeImpl::getChangeDataCount() const
{
OSL_PRECOND(m_nState & eTestedChange, "WARNING: Configuration: Change was not tested - change data count may be incorrect");
return doGetChangeCount();
}
//-----------------------------------------------------------------------------
bool NodeChangeImpl::fillChangeData(NodeChangeData& rChange, sal_uInt32 _ix) const
{
OSL_PRECOND(_ix < doGetChangeCount(), "ERROR: Configuration: Change index out of range");
OSL_PRECOND(m_nState & eTestedChange, "WARNING: Configuration: Change was not tested - fillChange is partially meaningless");
return doFillChange(rChange, _ix) || rChange.isDataChange(); // force true if the data is signaling change
}
//-----------------------------------------------------------------------------
bool NodeChangeImpl::fillChangeLocation(NodeChangeLocation& rChange, sal_uInt32 _ix) const
{
if (!m_aAffectedTree.is()) return false;
rChange.setBase( NodeID(this->getTargetTree().get(), this->getTargetNode()) );
rChange.setAccessor( this->doGetChangingNodePath(_ix) );
rChange.setAffected( NodeID(this->getTargetTree().get(), this->getTargetNode()) );
rChange.setChangingSubnode( this->doIsChangingSubnode() );
return true;
}
//-----------------------------------------------------------------------------
bool NodeChangeImpl::fillChangeInfo(NodeChangeInformation& rChange, sal_uInt32 _ix) const
{
return fillChangeLocation(rChange.location, _ix) & fillChangeData(rChange.change, _ix);
}
//-----------------------------------------------------------------------------
void NodeChangeImpl::test()
{
if (!(m_nState & eTestedChange))
{
doTest(implGetTarget());
m_nState |= eTestedChange;
}
}
//-----------------------------------------------------------------------------
void NodeChangeImpl::apply()
{
if (!(m_nState & eAppliedChange))
{
implApply();
OSL_ENSURE(m_nState & eAppliedChange, "ERROR: Configuration: Change could not be applied");
OSL_ENSURE(m_nState & eTestedChange, "ERROR: Configuration: Change was not tested while applied");
}
else
OSL_ENSURE(m_nState & eTestedChange, "ERROR: Configuration: Change marked applied but not tested");
}
//-----------------------------------------------------------------------------
// default count is 1
sal_uInt32 NodeChangeImpl::doGetChangeCount() const
{
return 1;
}
//-----------------------------------------------------------------------------
/// apply this change to the given node - start state is nState (which is then updated)
void NodeChangeImpl::implApply()
{
OSL_ASSERT( !(m_nState & eAppliedChange)); // Caller must check
view::Node aTarget = implGetTarget();
if (!(m_nState & eTestedChange)) // Test checks the old value if there is realy a change
{ // for eventlisteners to say "the old value is kept"
doTest(aTarget);
m_nState |= eTestedChange;
}
doApply(aTarget);
m_nState |= eAppliedChange;
}
//-----------------------------------------------------------------------------
view::Node NodeChangeImpl::implGetTarget()
{
OSL_ENSURE(m_aAffectedTree.is(), "ERROR: Configuration Change: no target tree set");
OSL_ENSURE(m_aAffectedTree->isValidNode(m_nAffectedNode), "ERROR: Configuration Change: target node not in target tree");
view::Node aTarget = getTargetView().makeNode(m_nAffectedNode);
OSL_ENSURE(aTarget.is(), "ERROR: Configuration: No target for change");
return aTarget;
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// Value operations: ValueChangeImpl = common base
//-----------------------------------------------------------------------------
ValueChangeImpl::ValueChangeImpl()
: m_aNewValue()
, m_aOldValue()
{
}
//-----------------------------------------------------------------------------
ValueChangeImpl::ValueChangeImpl(com::sun::star::uno::Any const& aNewValue)
: m_aNewValue(aNewValue)
, m_aOldValue()
{
}
//-----------------------------------------------------------------------------
ValueChangeImpl::ValueChangeImpl(com::sun::star::uno::Any const& aNewValue, com::sun::star::uno::Any const& aOldValue)
: NodeChangeImpl(true)
, m_aNewValue(aNewValue)
, m_aOldValue(aOldValue)
{
}
//-----------------------------------------------------------------------------
ValueChangeImpl::~ValueChangeImpl()
{
}
//-----------------------------------------------------------------------------
void ValueChangeImpl::setTarget(view::GroupNode const& _aParentNode, rtl::OUString const& sNodeName)
{
OSL_ENSURE(sNodeName.getLength() != 0, "ValueChangeTarget is being set without a name");
NodeChangeImpl::setTarget(_aParentNode.node());
m_aName = sNodeName;
}
//-----------------------------------------------------------------------------
void ValueChangeImpl::setTarget(rtl::Reference<Tree> const& aAffectedTree, unsigned int nParentNode, rtl::OUString const& sNodeName)
{
OSL_ENSURE(sNodeName.getLength() != 0, "ValueChangeTarget is being set without a name");
NodeChangeImpl::setTarget(aAffectedTree,nParentNode);
m_aName = sNodeName;
}
//-----------------------------------------------------------------------------
RelativePath ValueChangeImpl::doGetChangingNodePath(sal_uInt32 ) const
{
return RelativePath( Path::wrapSimpleName(m_aName) );
}
//-----------------------------------------------------------------------------
bool ValueChangeImpl::doIsChangingSubnode() const
{
return m_aName.getLength() != 0;
}
//-----------------------------------------------------------------------------
bool ValueChangeImpl::doIsChange() const
{
return !!(getNewValue() != getOldValue());
}
//-----------------------------------------------------------------------------
bool ValueChangeImpl::doFillChange(NodeChangeData& rChange, sal_uInt32) const
{
rChange.unoData.newValue = getNewValue();
rChange.unoData.oldValue = getOldValue();
return rChange.unoData.isDataChange();
}
//-----------------------------------------------------------------------------
void ValueChangeImpl::doTest( view::Node const& rTarget)
{
view::ViewTreeAccess aTargetView = getTargetView();
OSL_ENSURE(rTarget.isGroupNode(), "ERROR: Configuration: Target type mismatch: expected a group node holding the value");
ValueMemberNode aValueTarget = aTargetView.getValue( view::GroupNode(rTarget), m_aName );
OSL_ENSURE(aValueTarget.isValid(), "ERROR: Configuration: Target missing: could not find the changing value");
preCheckValue(aValueTarget, m_aOldValue, m_aNewValue);
}
//-----------------------------------------------------------------------------
void ValueChangeImpl::doApply( view::Node const& rTarget)
{
view::ViewTreeAccess aTargetView = getTargetView();
OSL_ENSURE(rTarget.isGroupNode(), "ERROR: Configuration: Target type mismatch: expected a group node holding the value");
ValueMemberUpdate aValueTarget = aTargetView.getValueForUpdate( view::GroupNode(rTarget), m_aName );
OSL_ENSURE(aValueTarget.isValid(), "ERROR: Configuration: Target missing: could not find the changing value");
doApplyChange(aValueTarget);
configmgr::configuration::ValueMemberNode aNode(aValueTarget.getNode());
postCheckValue(aNode, m_aNewValue); // Sideeffect: m_aNewValue will be changed
}
//-----------------------------------------------------------------------------
void ValueChangeImpl::preCheckValue(ValueMemberNode& rNode, com::sun::star::uno::Any& rOld, com::sun::star::uno::Any& )
{
com::sun::star::uno::Any aPrevValue = rNode.getValue();
OSL_ENSURE(!rOld.hasValue() || rOld == aPrevValue, "ERROR: Configuration: Stored old value of target does not match the actual value");
rOld = aPrevValue;
}
//-----------------------------------------------------------------------------
void ValueChangeImpl::postCheckValue(ValueMemberNode& rNode, com::sun::star::uno::Any& rNew)
{
com::sun::star::uno::Any aResultValue = rNode.getValue();
OSL_ENSURE(!rNew.hasValue() || rNew == aResultValue, "ERROR: Configuration: New value of target does not match the predicted result");
rNew = aResultValue;
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// Value operations: ValueReplaceImpl = set local value
//-----------------------------------------------------------------------------
ValueReplaceImpl::ValueReplaceImpl(com::sun::star::uno::Any const& aNewValue)
:ValueChangeImpl(aNewValue)
{
}
//-----------------------------------------------------------------------------
ValueReplaceImpl::ValueReplaceImpl(com::sun::star::uno::Any const& aNewValue, com::sun::star::uno::Any const& aOldValue)
:ValueChangeImpl(aNewValue, aOldValue)
{
}
//-----------------------------------------------------------------------------
void ValueReplaceImpl::doApplyChange( ValueMemberUpdate& rNode)
{
rNode.setValue(getNewValue());
}
//-----------------------------------------------------------------------------
bool ValueReplaceImpl::doFillChange( NodeChangeData& rChange, sal_uInt32 _ix) const
{
rChange.type = NodeChangeData::eSetValue;
return ValueChangeImpl::doFillChange(rChange, _ix);
}
//-----------------------------------------------------------------------------
// Value operations: ValueResetImpl = set to default
//-----------------------------------------------------------------------------
ValueResetImpl::ValueResetImpl()
:ValueChangeImpl()
, m_bTargetIsDefault(false)
{
}
//-----------------------------------------------------------------------------
ValueResetImpl::ValueResetImpl(com::sun::star::uno::Any const& aNewValue, com::sun::star::uno::Any const& aOldValue)
:ValueChangeImpl(aNewValue, aOldValue)
, m_bTargetIsDefault(false)
{
}
//-----------------------------------------------------------------------------
void ValueResetImpl::doApplyChange( ValueMemberUpdate& rNode)
{
rNode.setDefault();
}
//-----------------------------------------------------------------------------
bool ValueResetImpl::doIsChange() const
{
return !m_bTargetIsDefault;
}
//-----------------------------------------------------------------------------
bool ValueResetImpl::doFillChange( NodeChangeData& rChange, sal_uInt32 _ix) const
{
rChange.type = NodeChangeData::eSetDefault;
ValueChangeImpl::doFillChange(rChange,_ix);
return !m_bTargetIsDefault && !rChange.isEmptyChange(); // do it defensively here - default (= 'new') may be unknown still
}
//-----------------------------------------------------------------------------
void ValueResetImpl::preCheckValue(ValueMemberNode& rNode, com::sun::star::uno::Any& rOld, com::sun::star::uno::Any& rNew)
{
ValueChangeImpl::preCheckValue(rNode,rOld,rNew);
com::sun::star::uno::Any aDefaultValue = rNode.getDefaultValue();
OSL_ENSURE(!rNew.hasValue() || rNew == aDefaultValue, "ERROR: Configuration: Stored new value of target does not match the actual default value");
rNew = aDefaultValue;
m_bTargetIsDefault = rNode.isDefault();
}
//-----------------------------------------------------------------------------
// All Set Changes: SetChangeImpl - common base
//-----------------------------------------------------------------------------
SetChangeImpl::SetChangeImpl(bool bNoCheck)
: NodeChangeImpl(bNoCheck)
{
}
//-----------------------------------------------------------------------------
bool SetChangeImpl::doIsChangingSubnode() const
{
return false;
}
//-----------------------------------------------------------------------------
// Resetting a set to its default state
//-----------------------------------------------------------------------------
SetResetImpl::SetResetImpl(
SetElementFactory& _rElementFactory,
std::auto_ptr<ISubtree> _pDefaultData,
bool _bNoCheck
)
: SetChangeImpl(_bNoCheck)
, m_aDefaultData(_pDefaultData)
, m_rElementFactory(_rElementFactory)
, m_aTreeChanges()
{
}
//-----------------------------------------------------------------------------
SetResetImpl::~SetResetImpl()
{
}
//-----------------------------------------------------------------------------
RelativePath SetResetImpl::doGetChangingNodePath(sal_uInt32 _ix) const
{
OSL_ENSURE( _ix < m_aTreeChanges.size() || _ix == scCommonBase, "Illegal Change index" );
OSL_ASSERT( static_cast<size_t>(scCommonBase) > m_aTreeChanges.size() );
if ( _ix < m_aTreeChanges.size() )
return RelativePath( m_aTreeChanges[_ix].m_aElementName);
else
return RelativePath();
}
//-----------------------------------------------------------------------------
static NodeChangeData::Type getChangeType(ElementTreeChange const& aChange)
{
sal_Bool bHasNew = aChange.m_aAddedElement.is();
sal_Bool bHasOld = aChange.m_aRemovedElement.is();
NodeChangeData::Type aResult;
if (bHasNew)
aResult = bHasOld ? NodeChangeData::eReplaceElement : NodeChangeData::eInsertElement;
else
aResult = bHasOld ? NodeChangeData::eRemoveElement : NodeChangeData::eSetDefault;
return aResult;
}
//-----------------------------------------------------------------------------
bool SetResetImpl::doIsChange() const
{
return !m_aTreeChanges.empty() || m_aDefaultData.get();
}
//-----------------------------------------------------------------------------
bool SetResetImpl::doFillChange(NodeChangeData& rChange, sal_uInt32 _ix) const
{
OSL_ENSURE( _ix < m_aTreeChanges.size() || _ix == scCommonBase, "Illegal Change index" );
if (_ix >= m_aTreeChanges.size())
{
rChange.type = NodeChangeData::eResetSetDefault;
return m_aDefaultData.get() != NULL;
}
ElementTreeChange const& aChange = m_aTreeChanges[_ix];
rChange.type = getChangeType(aChange);
rChange.element.newValue = aChange.m_aAddedElement;
rChange.element.oldValue = aChange.m_aRemovedElement;
return true;
}
//-----------------------------------------------------------------------------
void SetResetImpl::doTest( view::Node const& rTarget)
{
if ( m_aDefaultData.get() )
{
view::ViewTreeAccess accessor = this->getTargetView();
view::SetNode aTargetSet(rTarget);
std::auto_ptr<SubtreeChange> pChanges = accessor.differenceToDefaultState(aTargetSet, *m_aDefaultData);
if (pChanges.get())
{
for (SubtreeChange::MutatingChildIterator it = pChanges->begin_changes(),
stop = pChanges->end_changes();
it != stop;
++it)
{
rtl::OUString aName(it->getNodeName());
SetEntry anExistingEntry = accessor.findElement(aTargetSet,aName);
rtl::Reference<ElementTree> aOldTree = anExistingEntry.tree();
rtl::Reference<ElementTree> aNewTree;
if (AddNode * addNode = dynamic_cast< AddNode * >(&*it))
{
rtl::Reference< data::TreeSegment > pAddedNode = addNode->getNewTree();
OSL_ENSURE(pAddedNode.is(), "Processing an addNode to default - no node to add");
aNewTree = m_rElementFactory.instantiateOnDefault(pAddedNode,accessor.getElementTemplate(aTargetSet)).get();
}
Path::Component aFullName =
aNewTree.is() ? aNewTree->getExtendedRootName() :
aOldTree.is() ? aOldTree->getExtendedRootName() :
Path::makeCompositeName(aName,accessor.getElementTemplate(aTargetSet)->getName());
OSL_ENSURE(aOldTree.is() || aNewTree.is(), "No data for change to default");
m_aTreeChanges.push_back(ElementTreeChange(aFullName,aNewTree,aOldTree));
}
}
m_aDefaultData.reset();
}
}
//-----------------------------------------------------------------------------
void SetResetImpl::doApply( view::Node const& rTarget)
{
view::ViewTreeAccess accessor = this->getTargetView();
view::SetNode aTargetSet(rTarget);
for (std::vector< ElementTreeChange >::iterator it = m_aTreeChanges.begin(); it != m_aTreeChanges.end(); ++it)
{
rtl::OUString aElementName = it->m_aElementName.getName();
if (it->m_aRemovedElement.is())
accessor.removeElement(aTargetSet, aElementName);
if (it->m_aAddedElement.is())
{
SetEntry aNewEntry( it->m_aAddedElement.get() );
accessor.insertElement(aTargetSet, aElementName, aNewEntry);
}
OSL_ENSURE(getChangeType(*it) != NodeChangeData::eSetDefault,
"Cannot apply change without data");
}
}
//-----------------------------------------------------------------------------
// All Set Changes affecting a single element: SetElementChangeImpl - common base
//-----------------------------------------------------------------------------
SetElementChangeImpl::SetElementChangeImpl(Path::Component const& aName, bool bNoCheck)
: SetChangeImpl(bNoCheck)
, m_aName(aName)
{
}
//-----------------------------------------------------------------------------
RelativePath SetElementChangeImpl::doGetChangingNodePath(sal_uInt32 ) const
{
return RelativePath(getFullElementName());
}
//-----------------------------------------------------------------------------
void SetElementChangeImpl::doTest( view::Node const& rTarget)
{
doTestElement(view::SetNode(rTarget), getElementName() );
}
//-----------------------------------------------------------------------------
void SetElementChangeImpl::doApply( view::Node const& rTarget)
{
doApplyToElement(view::SetNode(rTarget), getElementName() );
}
//-----------------------------------------------------------------------------
// Full Sets: SetInsertTreeImpl
//-----------------------------------------------------------------------------
SetInsertImpl::SetInsertImpl(Path::Component const& aName, rtl::Reference<ElementTree> const& aNewTree, bool bNoCheck)
: SetElementChangeImpl(aName,bNoCheck)
, m_aNewTree(aNewTree)
{
}
//-----------------------------------------------------------------------------
bool SetInsertImpl::doIsChange() const
{
return !!m_aNewTree.is();
}
//-----------------------------------------------------------------------------
bool SetInsertImpl::doFillChange(NodeChangeData& rChange, sal_uInt32) const
{
rChange.type = NodeChangeData::eInsertElement;
if (m_aNewTree.is())
rChange.element.newValue = m_aNewTree;
return isChange(true);
}
//-----------------------------------------------------------------------------
void SetInsertImpl::doTestElement( view::SetNode const& _aNode, rtl::OUString const& aName)
{
SetEntry anEntry = getTargetView().findElement(_aNode,aName); // require loaded children
OSL_ENSURE(!anEntry.isValid(), "ERROR: Configuration: Adding a node that already exists");
}
//-----------------------------------------------------------------------------
void SetInsertImpl::doApplyToElement( view::SetNode const& _aNode, rtl::OUString const& aName)
{
if (m_aNewTree.is())
{
SetEntry aNewEntry( m_aNewTree.get() );
getTargetView().insertElement( _aNode, aName, aNewEntry);
}
}
//-----------------------------------------------------------------------------
// Full Sets: SetReplaceTreeImpl
//-----------------------------------------------------------------------------
SetReplaceImpl::SetReplaceImpl(Path::Component const& aName, rtl::Reference<ElementTree> const& aNewTree)
: SetElementChangeImpl(aName)
, m_aNewTree(aNewTree)
, m_aOldTree()
{
}
//-----------------------------------------------------------------------------
SetReplaceImpl::SetReplaceImpl(Path::Component const& aName, rtl::Reference<ElementTree> const& aNewTree, rtl::Reference<ElementTree> const& aOldTree)
: SetElementChangeImpl(aName,true)
, m_aNewTree(aNewTree)
, m_aOldTree(aOldTree)
{
}
//-----------------------------------------------------------------------------
/// checks, if this represents an actual change
bool SetReplaceImpl::doIsChange() const
{
return !(m_aOldTree == m_aNewTree);
}
//-----------------------------------------------------------------------------
/// fills in pre- and post-change values, returns wether they differ
bool SetReplaceImpl::doFillChange(NodeChangeData& rChange, sal_uInt32) const
{
rChange.type = NodeChangeData::eReplaceElement;
if (m_aNewTree.is())
rChange.element.newValue = m_aNewTree;
if (m_aOldTree.is())
rChange.element.oldValue = m_aOldTree;
return isChange(true);
}
//-----------------------------------------------------------------------------
void SetReplaceImpl::doTestElement( view::SetNode const& _aNode, rtl::OUString const& aName)
{
OSL_ASSERT(!m_aOldTree.is()); // already tested ?
// remove the old node
SetEntry anEntry = getTargetView().findElement(_aNode,aName); // require loaded children
OSL_ENSURE(anEntry.isValid(), "ERROR: Configuration: Replacing a node that doesn't exist");
m_aOldTree = anEntry.tree();
}
//-----------------------------------------------------------------------------
void SetReplaceImpl::doApplyToElement( view::SetNode const& _aNode, rtl::OUString const& aName)
{
if (m_aOldTree != m_aNewTree)
{
view::ViewTreeAccess aTargetView = this->getTargetView();
OSL_ENSURE(m_aOldTree.is(), "ERROR: Configuration: Replacing a node that doesn't exist");
aTargetView.removeElement(_aNode, aName);
// add the new one
OSL_ENSURE(m_aNewTree.is(), "ERROR: Configuration: Replacing a node with nothing");
if (m_aNewTree.is())
{
SetEntry aNewEntry( m_aNewTree.get() );
aTargetView.insertElement( _aNode, aName, aNewEntry);
}
}
}
//-----------------------------------------------------------------------------
// Full Sets: SetRemoveTreeImpl
//-----------------------------------------------------------------------------
SetRemoveImpl::SetRemoveImpl(Path::Component const& aName)
: SetElementChangeImpl(aName)
, m_aOldTree()
{
}
//-----------------------------------------------------------------------------
SetRemoveImpl::SetRemoveImpl(Path::Component const& aName, rtl::Reference<ElementTree> const& aOldTree)
: SetElementChangeImpl(aName,true)
, m_aOldTree(aOldTree)
{
}
//-----------------------------------------------------------------------------
/// checks, if this represents an actual change
bool SetRemoveImpl::doIsChange() const
{
return !!m_aOldTree.is();
}
//-----------------------------------------------------------------------------
/// fills in pre- and post-change values, returns wether they differ
bool SetRemoveImpl::doFillChange(NodeChangeData& rChange, sal_uInt32) const
{
rChange.type = NodeChangeData::eRemoveElement;
if (m_aOldTree.is())
rChange.element.oldValue = m_aOldTree;
return isChange(true);
}
//-----------------------------------------------------------------------------
void SetRemoveImpl::doTestElement( view::SetNode const& _aNode, rtl::OUString const& aName)
{
OSL_ASSERT(!m_aOldTree.is()); // already tested ?
// remove the old node
SetEntry anEntry = getTargetView().findElement(_aNode,aName); // require loaded children
OSL_ENSURE(anEntry.isValid(), "ERROR: Configuration: Removing a node that doesn't exist");
m_aOldTree = anEntry.tree();
}
//-----------------------------------------------------------------------------
void SetRemoveImpl::doApplyToElement( view::SetNode const& _aNode, rtl::OUString const& aName)
{
getTargetView().removeElement(_aNode, aName);
}
//-----------------------------------------------------------------------------
}
}