Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 494 insertions, 0 deletions

diff --git a/comphelper/source/property/propertycontainerhelper.cxx b/comphelper/source/property/propertycontainerhelper.cxx
new file mode 100644
index 000000000..ee81100ae
--- /dev/null
+++ b/comphelper/source/property/propertycontainerhelper.cxx
@@ -0,0 +1,494 @@
+/* -*- 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/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <comphelper/propertycontainerhelper.hxx>
+#include <comphelper/property.hxx>
+#include <osl/diagnose.h>
+#include <uno/data.h>
+#include <com/sun/star/uno/Sequence.hxx>
+#include <com/sun/star/beans/PropertyAttribute.hpp>
+#include <com/sun/star/beans/UnknownPropertyException.hpp>
+
+#include <algorithm>
+#include <utility>
+
+
+namespace comphelper
+{
+
+
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::beans;
+
+
+namespace
+{
+    // comparing two property descriptions
+    struct PropertyDescriptionHandleCompare
+    {
+        bool operator() (const PropertyDescription& x, const PropertyDescription& y) const
+        {
+            return x.aProperty.Handle < y.aProperty.Handle;
+        }
+    };
+    // comparing two property descriptions (by name)
+    struct PropertyDescriptionNameMatch
+    {
+        OUString const m_rCompare;
+        explicit PropertyDescriptionNameMatch( OUString _aCompare ) : m_rCompare(std::move( _aCompare )) { }
+
+        bool operator() (const PropertyDescription& x ) const
+        {
+            return x.aProperty.Name == m_rCompare;
+        }
+    };
+}
+
+OPropertyContainerHelper::OPropertyContainerHelper()
+{
+}
+
+
+OPropertyContainerHelper::~OPropertyContainerHelper()
+{
+}
+
+
+void OPropertyContainerHelper::registerProperty(const OUString& _rName, sal_Int32 _nHandle,
+        sal_Int32 _nAttributes, void* _pPointerToMember, const Type& _rMemberType)
+{
+    OSL_ENSURE((_nAttributes & PropertyAttribute::MAYBEVOID) == 0,
+        "OPropertyContainerHelper::registerProperty: don't use this for properties which may be void ! There is a method called \"registerMayBeVoidProperty\" for this !");
+    OSL_ENSURE(!_rMemberType.equals(cppu::UnoType<Any>::get()),
+        "OPropertyContainerHelper::registerProperty: don't give my the type of a uno::Any ! Really can't handle this !");
+    OSL_ENSURE(_pPointerToMember,
+        "OPropertyContainerHelper::registerProperty: you gave me nonsense : the pointer must be non-NULL");
+
+    PropertyDescription aNewProp;
+    aNewProp.aProperty = Property( _rName, _nHandle, _rMemberType, static_cast<sal_Int16>(_nAttributes) );
+    aNewProp.eLocated = PropertyDescription::LocationType::DerivedClassRealType;
+    aNewProp.aLocation.pDerivedClassMember = _pPointerToMember;
+
+    implPushBackProperty(aNewProp);
+}
+
+
+void OPropertyContainerHelper::revokeProperty( sal_Int32 _nHandle )
+{
+    PropertiesIterator aPos = searchHandle( _nHandle );
+    if ( aPos == m_aProperties.end() )
+        throw UnknownPropertyException(OUString::number(_nHandle));
+    m_aProperties.erase( aPos );
+}
+
+
+void OPropertyContainerHelper::registerMayBeVoidProperty(const OUString& _rName, sal_Int32 _nHandle, sal_Int32 _nAttributes,
+        Any* _pPointerToMember, const Type& _rExpectedType)
+{
+    OSL_ENSURE((_nAttributes & PropertyAttribute::MAYBEVOID) != 0,
+        "OPropertyContainerHelper::registerMayBeVoidProperty: why calling this when the attributes say nothing about may-be-void ?");
+    OSL_ENSURE(!_rExpectedType.equals(cppu::UnoType<Any>::get()),
+        "OPropertyContainerHelper::registerMayBeVoidProperty: don't give my the type of a uno::Any ! Really can't handle this !");
+    OSL_ENSURE(_pPointerToMember,
+        "OPropertyContainerHelper::registerMayBeVoidProperty: you gave me nonsense : the pointer must be non-NULL");
+
+    _nAttributes |= PropertyAttribute::MAYBEVOID;
+
+    PropertyDescription aNewProp;
+    aNewProp.aProperty = Property( _rName, _nHandle, _rExpectedType, static_cast<sal_Int16>(_nAttributes) );
+    aNewProp.eLocated = PropertyDescription::LocationType::DerivedClassAnyType;
+    aNewProp.aLocation.pDerivedClassMember = _pPointerToMember;
+
+    implPushBackProperty(aNewProp);
+}
+
+
+void OPropertyContainerHelper::registerPropertyNoMember(const OUString& _rName, sal_Int32 _nHandle, sal_Int32 _nAttributes,
+        const Type& _rType, css::uno::Any const & _pInitialValue)
+{
+    OSL_ENSURE(!_rType.equals(cppu::UnoType<Any>::get()),
+        "OPropertyContainerHelper::registerPropertyNoMember : don't give my the type of a uno::Any ! Really can't handle this !");
+    OSL_ENSURE(
+        (_pInitialValue.isExtractableTo(_rType)
+         || (!_pInitialValue.hasValue()
+             && (_nAttributes & PropertyAttribute::MAYBEVOID) != 0)),
+        "bad initial value");
+
+    PropertyDescription aNewProp;
+    aNewProp.aProperty = Property( _rName, _nHandle, _rType, static_cast<sal_Int16>(_nAttributes) );
+    aNewProp.eLocated = PropertyDescription::LocationType::HoldMyself;
+    aNewProp.aLocation.nOwnClassVectorIndex = m_aHoldProperties.size();
+    m_aHoldProperties.push_back(_pInitialValue);
+
+    implPushBackProperty(aNewProp);
+}
+
+
+bool OPropertyContainerHelper::isRegisteredProperty( sal_Int32 _nHandle ) const
+{
+    return const_cast< OPropertyContainerHelper* >( this )->searchHandle( _nHandle ) != m_aProperties.end();
+}
+
+
+bool OPropertyContainerHelper::isRegisteredProperty( const OUString& _rName ) const
+{
+    // TODO: the current structure is from a time where properties were
+    // static, not dynamic. Since we allow that properties are also dynamic,
+    // i.e. registered and revoked even though the XPropertySet has already been
+    // accessed, a vector is not really the best data structure anymore ...
+
+    return std::any_of(
+        m_aProperties.begin(),
+        m_aProperties.end(),
+        PropertyDescriptionNameMatch( _rName )
+    );
+}
+
+
+namespace
+{
+    struct ComparePropertyHandles
+    {
+        bool operator()( const PropertyDescription& _rLHS, const PropertyDescription& _nRHS ) const
+        {
+            return _rLHS.aProperty.Handle < _nRHS.aProperty.Handle;
+        }
+    };
+}
+
+
+void OPropertyContainerHelper::implPushBackProperty(const PropertyDescription& _rProp)
+{
+#ifdef DBG_UTIL
+    for (const auto& checkConflicts : m_aProperties)
+    {
+        OSL_ENSURE(checkConflicts.aProperty.Name != _rProp.aProperty.Name, "OPropertyContainerHelper::implPushBackProperty: name already exists!");
+        OSL_ENSURE(checkConflicts.aProperty.Handle != _rProp.aProperty.Handle, "OPropertyContainerHelper::implPushBackProperty: handle already exists!");
+    }
+#endif
+
+    PropertiesIterator pos = std::lower_bound(
+        m_aProperties.begin(), m_aProperties.end(),
+        _rProp, ComparePropertyHandles() );
+
+    m_aProperties.insert( pos, _rProp );
+}
+
+
+namespace
+{
+    void lcl_throwIllegalPropertyValueTypeException( const PropertyDescription& _rProperty, const Any& _rValue )
+    {
+        throw IllegalArgumentException(
+            "The given value cannot be converted to the required property type."
+            " (property name \"" +  _rProperty.aProperty.Name
+            + "\", found value type \"" + _rValue.getValueType().getTypeName()
+            + "\", required property type \"" + _rProperty.aProperty.Type.getTypeName()
+            + "\")",
+            nullptr, 4 );
+    }
+}
+
+
+bool OPropertyContainerHelper::convertFastPropertyValue(
+    Any& _rConvertedValue, Any& _rOldValue, sal_Int32 _nHandle, const Any& _rValue )
+{
+    bool bModified = false;
+
+    // get the property somebody is asking for
+    PropertiesIterator aPos = searchHandle(_nHandle);
+    if (aPos == m_aProperties.end())
+    {
+        OSL_FAIL( "OPropertyContainerHelper::convertFastPropertyValue: unknown handle!" );
+        // should not happen if the derived class has built a correct property set info helper to be used by
+        // our base class OPropertySetHelper
+        return bModified;
+    }
+
+    switch (aPos->eLocated)
+    {
+        // similar handling for the two cases where the value is stored in an any
+        case PropertyDescription::LocationType::HoldMyself:
+        case PropertyDescription::LocationType::DerivedClassAnyType:
+        {
+            bool bMayBeVoid = ((aPos->aProperty.Attributes & PropertyAttribute::MAYBEVOID) != 0);
+
+
+            // non modifiable version of the value-to-be-set
+            Any aNewRequestedValue( _rValue );
+
+            // normalization
+            // #i29490#
+            if ( !aNewRequestedValue.getValueType().equals( aPos->aProperty.Type ) )
+            {   // the actually given value is not of the same type as the one required
+                Any aProperlyTyped( nullptr, aPos->aProperty.Type.getTypeLibType() );
+
+                if (    uno_type_assignData(
+                            const_cast< void* >( aProperlyTyped.getValue() ), aProperlyTyped.getValueType().getTypeLibType(),
+                            const_cast< void* >( aNewRequestedValue.getValue() ), aNewRequestedValue.getValueType().getTypeLibType(),
+                            reinterpret_cast< uno_QueryInterfaceFunc >( cpp_queryInterface ),
+                            reinterpret_cast< uno_AcquireFunc >( cpp_acquire ),
+                            reinterpret_cast< uno_ReleaseFunc >( cpp_release )
+                        )
+                    )
+                {
+                    // we were able to query the given XInterface-derivee for the interface
+                    // which is required for this property
+                    aNewRequestedValue = aProperlyTyped;
+                }
+            }
+
+            // argument check
+            if  (   !   (   (bMayBeVoid && !aNewRequestedValue.hasValue())                      // void is allowed if the attribute says so
+                        ||  (aNewRequestedValue.getValueType().equals(aPos->aProperty.Type))    // else the types have to be equal
+                        )
+                )
+            {
+                lcl_throwIllegalPropertyValueTypeException( *aPos, _rValue );
+            }
+
+            Any* pPropContainer = nullptr;
+                // the pointer to the any which holds the property value, no matter if located in the derived class
+                // or in out vector
+
+            if (PropertyDescription::LocationType::HoldMyself == aPos->eLocated)
+            {
+                OSL_ENSURE(aPos->aLocation.nOwnClassVectorIndex < m_aHoldProperties.size(),
+                    "OPropertyContainerHelper::convertFastPropertyValue: invalid position !");
+                auto aIter = m_aHoldProperties.begin() + aPos->aLocation.nOwnClassVectorIndex;
+                pPropContainer = &(*aIter);
+            }
+            else
+                pPropContainer = static_cast<Any*>(aPos->aLocation.pDerivedClassMember);
+
+            // check if the new value differs from the current one
+            if (!pPropContainer->hasValue() || !aNewRequestedValue.hasValue())
+                bModified = pPropContainer->hasValue() != aNewRequestedValue.hasValue();
+            else
+                bModified = !uno_type_equalData(
+                                const_cast< void* >( pPropContainer->getValue() ), aPos->aProperty.Type.getTypeLibType(),
+                                const_cast< void* >( aNewRequestedValue.getValue() ), aPos->aProperty.Type.getTypeLibType(),
+                                reinterpret_cast< uno_QueryInterfaceFunc >( cpp_queryInterface ),
+                                reinterpret_cast< uno_ReleaseFunc >( cpp_release )
+                            );
+
+            if (bModified)
+            {
+                _rOldValue = *pPropContainer;
+                _rConvertedValue = aNewRequestedValue;
+            }
+        }
+        break;
+        case PropertyDescription::LocationType::DerivedClassRealType:
+            // let the UNO runtime library do any possible conversion
+            // this may include a change of the type - for instance, if a LONG is required,
+            // but a short is given, then this is valid, as it can be converted without any potential
+            // data loss
+
+            Any aProperlyTyped;
+            const Any* pNewValue = &_rValue;
+
+            if (!_rValue.getValueType().equals(aPos->aProperty.Type))
+            {
+                bool bConverted = false;
+
+                // a temporary any of the correct (required) type
+                aProperlyTyped = Any( nullptr, aPos->aProperty.Type.getTypeLibType() );
+                    // (need this as we do not want to overwrite the derived class member here)
+
+                if (    uno_type_assignData(
+                            const_cast<void*>(aProperlyTyped.getValue()), aProperlyTyped.getValueType().getTypeLibType(),
+                            const_cast<void*>(_rValue.getValue()), _rValue.getValueType().getTypeLibType(),
+                            reinterpret_cast< uno_QueryInterfaceFunc >( cpp_queryInterface ),
+                            reinterpret_cast< uno_AcquireFunc >( cpp_acquire ),
+                            reinterpret_cast< uno_ReleaseFunc >( cpp_release )
+                        )
+                    )
+                {
+                    // could query for the requested interface
+                    bConverted = true;
+                    pNewValue = &aProperlyTyped;
+                }
+
+                if ( !bConverted )
+                    lcl_throwIllegalPropertyValueTypeException( *aPos, _rValue );
+            }
+
+            // from here on, we should have the proper type
+            OSL_ENSURE( pNewValue->getValueType() == aPos->aProperty.Type,
+                "OPropertyContainerHelper::convertFastPropertyValue: conversion failed!" );
+            bModified = !uno_type_equalData(
+                            aPos->aLocation.pDerivedClassMember, aPos->aProperty.Type.getTypeLibType(),
+                            const_cast<void*>(pNewValue->getValue()), aPos->aProperty.Type.getTypeLibType(),
+                            reinterpret_cast< uno_QueryInterfaceFunc >( cpp_queryInterface ),
+                            reinterpret_cast< uno_ReleaseFunc >( cpp_release )
+                        );
+
+            if (bModified)
+            {
+                _rOldValue.setValue(aPos->aLocation.pDerivedClassMember, aPos->aProperty.Type);
+                _rConvertedValue = *pNewValue;
+            }
+            break;
+    }
+
+    return bModified;
+}
+
+
+void OPropertyContainerHelper::setFastPropertyValue(sal_Int32 _nHandle, const Any& _rValue)
+{
+    // get the property somebody is asking for
+    PropertiesIterator aPos = searchHandle(_nHandle);
+    if (aPos == m_aProperties.end())
+    {
+        OSL_FAIL( "OPropertyContainerHelper::setFastPropertyValue: unknown handle!" );
+        // should not happen if the derived class has built a correct property set info helper to be used by
+        // our base class OPropertySetHelper
+        return;
+    }
+
+    bool bSuccess = true;
+
+    switch (aPos->eLocated)
+    {
+        case PropertyDescription::LocationType::HoldMyself:
+            m_aHoldProperties[aPos->aLocation.nOwnClassVectorIndex] = _rValue;
+            break;
+
+        case PropertyDescription::LocationType::DerivedClassAnyType:
+            *static_cast< Any* >(aPos->aLocation.pDerivedClassMember) = _rValue;
+            break;
+
+        case PropertyDescription::LocationType::DerivedClassRealType:
+            // copy the data from the to-be-set value
+            bSuccess = uno_type_assignData(
+                aPos->aLocation.pDerivedClassMember,        aPos->aProperty.Type.getTypeLibType(),
+                const_cast< void* >( _rValue.getValue() ),  _rValue.getValueType().getTypeLibType(),
+                reinterpret_cast< uno_QueryInterfaceFunc >( cpp_queryInterface ),
+                reinterpret_cast< uno_AcquireFunc >( cpp_acquire ),
+                reinterpret_cast< uno_ReleaseFunc >( cpp_release ) );
+
+            OSL_ENSURE( bSuccess,
+                "OPropertyContainerHelper::setFastPropertyValue: ooops... the value could not be assigned!");
+
+            break;
+    }
+}
+
+void OPropertyContainerHelper::getFastPropertyValue(Any& _rValue, sal_Int32 _nHandle) const
+{
+    // get the property somebody is asking for
+    PropertiesIterator aPos = const_cast<OPropertyContainerHelper*>(this)->searchHandle(_nHandle);
+    if (aPos == m_aProperties.end())
+    {
+        OSL_FAIL( "OPropertyContainerHelper::getFastPropertyValue: unknown handle!" );
+        // should not happen if the derived class has built a correct property set info helper to be used by
+        // our base class OPropertySetHelper
+        return;
+    }
+
+    switch (aPos->eLocated)
+    {
+        case PropertyDescription::LocationType::HoldMyself:
+            OSL_ENSURE(aPos->aLocation.nOwnClassVectorIndex < m_aHoldProperties.size(),
+                "OPropertyContainerHelper::convertFastPropertyValue: invalid position !");
+            _rValue = m_aHoldProperties[aPos->aLocation.nOwnClassVectorIndex];
+            break;
+        case PropertyDescription::LocationType::DerivedClassAnyType:
+            _rValue = *static_cast<Any*>(aPos->aLocation.pDerivedClassMember);
+            break;
+        case PropertyDescription::LocationType::DerivedClassRealType:
+            _rValue.setValue(aPos->aLocation.pDerivedClassMember, aPos->aProperty.Type);
+            break;
+    }
+}
+
+
+OPropertyContainerHelper::PropertiesIterator OPropertyContainerHelper::searchHandle(sal_Int32 _nHandle)
+{
+    PropertyDescription aHandlePropDesc;
+    aHandlePropDesc.aProperty.Handle = _nHandle;
+    // search a lower bound
+    PropertiesIterator aLowerBound = std::lower_bound(
+        m_aProperties.begin(),
+        m_aProperties.end(),
+        aHandlePropDesc,
+        PropertyDescriptionHandleCompare());
+
+    // check for identity
+    if ((aLowerBound != m_aProperties.end()) && aLowerBound->aProperty.Handle != _nHandle)
+        aLowerBound = m_aProperties.end();
+
+    return aLowerBound;
+}
+
+
+const Property& OPropertyContainerHelper::getProperty( const OUString& _rName ) const
+{
+    ConstPropertiesIterator pos = std::find_if(
+        m_aProperties.begin(),
+        m_aProperties.end(),
+        PropertyDescriptionNameMatch( _rName )
+    );
+    if ( pos == m_aProperties.end() )
+        throw UnknownPropertyException( _rName );
+
+    return pos->aProperty;
+}
+
+
+void OPropertyContainerHelper::describeProperties(Sequence< Property >& _rProps) const
+{
+    Sequence< Property > aOwnProps(m_aProperties.size());
+    Property* pOwnProps = aOwnProps.getArray();
+
+    for (const auto& rProp : m_aProperties)
+    {
+        pOwnProps->Name = rProp.aProperty.Name;
+        pOwnProps->Handle = rProp.aProperty.Handle;
+        pOwnProps->Attributes = rProp.aProperty.Attributes;
+        pOwnProps->Type = rProp.aProperty.Type;
+        ++pOwnProps;
+    }
+
+    // as our property vector is sorted by handles, not by name, we have to sort aOwnProps
+    auto [begin, end] = asNonConstRange(aOwnProps);
+    std::sort(begin, end, PropertyCompareByName());
+
+    // unfortunately the STL merge function does not allow the output range to overlap one of the input ranges,
+    // so we need an extra sequence
+    Sequence< Property > aOutput(_rProps.getLength() + aOwnProps.getLength());
+    // do the merge
+    std::merge(   std::cbegin(_rProps), std::cend(_rProps),       // input 1
+                  std::cbegin(aOwnProps), std::cend(aOwnProps),   // input 2
+                  aOutput.getArray(),                   // output
+                  PropertyCompareByName()               // compare operator
+              );
+
+    // copy the output
+    _rProps = aOutput;
+}
+
+
+}   // namespace comphelper
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */