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Diffstat (limited to 'sd/source/ui/sidebar/RecentlyUsedMasterPages.cxx')
| -rw-r--r-- | sd/source/ui/sidebar/RecentlyUsedMasterPages.cxx | 365 |
1 files changed, 365 insertions, 0 deletions
diff --git a/sd/source/ui/sidebar/RecentlyUsedMasterPages.cxx b/sd/source/ui/sidebar/RecentlyUsedMasterPages.cxx new file mode 100644 index 0000000000..be339116f6 --- /dev/null +++ b/sd/source/ui/sidebar/RecentlyUsedMasterPages.cxx @@ -0,0 +1,365 @@ +/* -*- 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 "RecentlyUsedMasterPages.hxx" +#include "MasterPageContainerProviders.hxx" +#include <MasterPageObserver.hxx> +#include "MasterPageDescriptor.hxx" +#include <tools/ConfigurationAccess.hxx> + +#include <algorithm> +#include <memory> +#include <vector> + +#include <com/sun/star/container/XNameAccess.hpp> +#include <com/sun/star/container/XNameContainer.hpp> +#include <com/sun/star/lang/XSingleServiceFactory.hpp> +#include <osl/doublecheckedlocking.h> +#include <osl/getglobalmutex.hxx> + +using namespace ::com::sun::star; +using namespace ::com::sun::star::uno; + +namespace { + +OUString GetPathToImpressConfigurationRoot() +{ + return "/org.openoffice.Office.Impress/"; +} +OUString GetPathToSetNode() +{ + return "MultiPaneGUI/ToolPanel/RecentlyUsedMasterPages"; +} + +} // end of anonymous namespace + +namespace sd::sidebar { + +RecentlyUsedMasterPages* RecentlyUsedMasterPages::mpInstance = nullptr; + +RecentlyUsedMasterPages& RecentlyUsedMasterPages::Instance() +{ + if (mpInstance == nullptr) + { + ::osl::GetGlobalMutex aMutexFunctor; + ::osl::MutexGuard aGuard (aMutexFunctor()); + if (mpInstance == nullptr) + { + RecentlyUsedMasterPages* pInstance = new RecentlyUsedMasterPages(); + pInstance->LateInit(); + SdGlobalResourceContainer::Instance().AddResource ( + ::std::unique_ptr<SdGlobalResource>(pInstance)); + OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER(); + mpInstance = pInstance; + } + } + else { + OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER(); + } + + return *mpInstance; +} + +constexpr size_t gnMaxListSize(8); + +RecentlyUsedMasterPages::RecentlyUsedMasterPages() + : mpContainer(std::make_shared<MasterPageContainer>()) +{ +} + +RecentlyUsedMasterPages::~RecentlyUsedMasterPages() +{ + Link<MasterPageContainerChangeEvent&,void> aLink (LINK(this,RecentlyUsedMasterPages,MasterPageContainerChangeListener)); + mpContainer->RemoveChangeListener(aLink); + + MasterPageObserver::Instance().RemoveEventListener( + LINK(this,RecentlyUsedMasterPages,MasterPageChangeListener)); +} + +void RecentlyUsedMasterPages::LateInit() +{ + Link<MasterPageContainerChangeEvent&,void> aLink (LINK(this,RecentlyUsedMasterPages,MasterPageContainerChangeListener)); + mpContainer->AddChangeListener(aLink); + + LoadPersistentValues (); + MasterPageObserver::Instance().AddEventListener( + LINK(this,RecentlyUsedMasterPages,MasterPageChangeListener)); +} + +void RecentlyUsedMasterPages::LoadPersistentValues() +{ + try + { + tools::ConfigurationAccess aConfiguration ( + GetPathToImpressConfigurationRoot(), + tools::ConfigurationAccess::READ_ONLY); + Reference<container::XNameAccess> xSet ( + aConfiguration.GetConfigurationNode(GetPathToSetNode()), + UNO_QUERY); + if ( ! xSet.is()) + return; + + static constexpr OUStringLiteral sURLMemberName(u"URL"); + static constexpr OUStringLiteral sNameMemberName(u"Name"); + OUString sURL; + OUString sName; + + // Read the names and URLs of the master pages. + const Sequence<OUString> aKeys (xSet->getElementNames()); + mvMasterPages.clear(); + mvMasterPages.reserve(aKeys.getLength()); + for (const auto& rKey : aKeys) + { + Reference<container::XNameAccess> xSetItem ( + xSet->getByName(rKey), UNO_QUERY); + if (xSetItem.is()) + { + Any aURL (xSetItem->getByName(sURLMemberName)); + Any aName (xSetItem->getByName(sNameMemberName)); + aURL >>= sURL; + aName >>= sName; + SharedMasterPageDescriptor pDescriptor = std::make_shared<MasterPageDescriptor>( + MasterPageContainer::TEMPLATE, + -1, + sURL, + OUString(), + sName, + false, + std::make_shared<TemplatePageObjectProvider>(sURL), + std::make_shared<TemplatePreviewProvider>(sURL)); + // For user supplied templates we use a different + // preview provider: The preview in the document shows + // not only shapes on the master page but also shapes on + // the foreground. This is misleading and therefore + // these previews are discarded and created directly + // from the page objects. + if (pDescriptor->GetURLClassification() == MasterPageDescriptor::URLCLASS_USER) + pDescriptor->mpPreviewProvider = std::make_shared<PagePreviewProvider>(); + MasterPageContainer::Token aToken (mpContainer->PutMasterPage(pDescriptor)); + mvMasterPages.emplace_back(aToken,sURL,sName); + } + } + + ResolveList(); + } + catch (Exception&) + { + // Ignore exception. + } +} + +void RecentlyUsedMasterPages::SavePersistentValues() +{ + try + { + tools::ConfigurationAccess aConfiguration ( + GetPathToImpressConfigurationRoot(), + tools::ConfigurationAccess::READ_WRITE); + Reference<container::XNameContainer> xSet ( + aConfiguration.GetConfigurationNode(GetPathToSetNode()), + UNO_QUERY); + if ( ! xSet.is()) + return; + + // Clear the set. + const Sequence<OUString> aKeys (xSet->getElementNames()); + for (const auto& rKey : aKeys) + xSet->removeByName (rKey); + + // Fill it with the URLs of this object. + static constexpr OUStringLiteral sURLMemberName(u"URL"); + static constexpr OUStringLiteral sNameMemberName(u"Name"); + Any aValue; + Reference<lang::XSingleServiceFactory> xChildFactory ( + xSet, UNO_QUERY); + if ( ! xChildFactory.is()) + return; + sal_Int32 nIndex(0); + for (const auto& rDescriptor : mvMasterPages) + { + // Create new child. + OUString sKey = "index_" + OUString::number(nIndex); + Reference<container::XNameReplace> xChild( + xChildFactory->createInstance(), UNO_QUERY); + if (xChild.is()) + { + xSet->insertByName (sKey, Any(xChild)); + + aValue <<= rDescriptor.msURL; + xChild->replaceByName (sURLMemberName, aValue); + + aValue <<= rDescriptor.msName; + xChild->replaceByName (sNameMemberName, aValue); + } + ++nIndex; + } + + // Write the data back to disk. + aConfiguration.CommitChanges(); + } + catch (Exception&) + { + // Ignore exception. + } +} + +void RecentlyUsedMasterPages::AddEventListener (const Link<LinkParamNone*,void>& rEventListener) +{ + if (::std::find ( + maListeners.begin(), + maListeners.end(), + rEventListener) == maListeners.end()) + { + maListeners.push_back (rEventListener); + } +} + +void RecentlyUsedMasterPages::RemoveEventListener (const Link<LinkParamNone*,void>& rEventListener) +{ + maListeners.erase ( + ::std::find ( + maListeners.begin(), + maListeners.end(), + rEventListener)); +} + +int RecentlyUsedMasterPages::GetMasterPageCount() const +{ + return mvMasterPages.size(); +} + +MasterPageContainer::Token RecentlyUsedMasterPages::GetTokenForIndex (sal_uInt32 nIndex) const +{ + if(nIndex<mvMasterPages.size()) + return mvMasterPages[nIndex].maToken; + else + return MasterPageContainer::NIL_TOKEN; +} + +void RecentlyUsedMasterPages::SendEvent() +{ + for (const auto& aLink : maListeners) + { + aLink.Call(nullptr); + } +} + +IMPL_LINK(RecentlyUsedMasterPages, MasterPageChangeListener, + MasterPageObserverEvent&, rEvent, void) +{ + switch (rEvent.meType) + { + case MasterPageObserverEvent::ET_MASTER_PAGE_ADDED: + case MasterPageObserverEvent::ET_MASTER_PAGE_EXISTS: + AddMasterPage( + mpContainer->GetTokenForStyleName(rEvent.mrMasterPageName)); + break; + + case MasterPageObserverEvent::ET_MASTER_PAGE_REMOVED: + // Do not change the list of recently master pages (the deleted + // page was recently used) but tell the listeners. They may want + // to update their lists. + SendEvent(); + break; + } +} + +IMPL_LINK(RecentlyUsedMasterPages, MasterPageContainerChangeListener, + MasterPageContainerChangeEvent&, rEvent, void) +{ + switch (rEvent.meEventType) + { + case MasterPageContainerChangeEvent::EventType::CHILD_ADDED: + case MasterPageContainerChangeEvent::EventType::CHILD_REMOVED: + case MasterPageContainerChangeEvent::EventType::INDEX_CHANGED: + ResolveList(); + break; + + default: + // Ignored. + break; + } +} + +void RecentlyUsedMasterPages::AddMasterPage ( + MasterPageContainer::Token aToken) +{ + // For the page to be inserted the token has to be valid and the page + // has to have a valid URL. This excludes master pages that do not come + // from template files. + if (aToken == MasterPageContainer::NIL_TOKEN + || mpContainer->GetURLForToken(aToken).isEmpty()) + return; + + MasterPageList::iterator aIterator ( + ::std::find_if(mvMasterPages.begin(),mvMasterPages.end(), + Descriptor::TokenComparator(aToken))); + if (aIterator != mvMasterPages.end()) + { + // When an entry for the given token already exists then remove + // it now and insert it later at the head of the list. + mvMasterPages.erase (aIterator); + } + + mvMasterPages.insert(mvMasterPages.begin(), + Descriptor( + aToken, + mpContainer->GetURLForToken(aToken), + mpContainer->GetStyleNameForToken(aToken))); + + // Shorten list to maximal size. + while (mvMasterPages.size() > gnMaxListSize) + { + mvMasterPages.pop_back (); + } + + SavePersistentValues (); + SendEvent(); +} + +void RecentlyUsedMasterPages::ResolveList() +{ + bool bNotify (false); + + for (auto& rDescriptor : mvMasterPages) + { + if (rDescriptor.maToken == MasterPageContainer::NIL_TOKEN) + { + MasterPageContainer::Token aToken (mpContainer->GetTokenForURL(rDescriptor.msURL)); + rDescriptor.maToken = aToken; + if (aToken != MasterPageContainer::NIL_TOKEN) + bNotify = true; + } + else + { + if ( ! mpContainer->HasToken(rDescriptor.maToken)) + { + rDescriptor.maToken = MasterPageContainer::NIL_TOKEN; + bNotify = true; + } + } + } + + if (bNotify) + SendEvent(); +} + +} // end of namespace sd::sidebar + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |