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Diffstat (limited to 'vcl/win/dtrans/clipboardmanager.cxx')
| -rw-r--r-- | vcl/win/dtrans/clipboardmanager.cxx | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/vcl/win/dtrans/clipboardmanager.cxx b/vcl/win/dtrans/clipboardmanager.cxx new file mode 100644 index 000000000..2e04d39e1 --- /dev/null +++ b/vcl/win/dtrans/clipboardmanager.cxx @@ -0,0 +1,216 @@ +/* -*- 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 "clipboardmanager.hxx" +#include <com/sun/star/container/ElementExistException.hpp> +#include <com/sun/star/container/NoSuchElementException.hpp> +#include <com/sun/star/lang/DisposedException.hpp> +#include <com/sun/star/lang/IllegalArgumentException.hpp> +#include <com/sun/star/uno/XComponentContext.hpp> +#include <cppuhelper/supportsservice.hxx> +#include <comphelper/sequence.hxx> +#include <rtl/ref.hxx> + +using namespace com::sun::star::container; +using namespace com::sun::star::datatransfer; +using namespace com::sun::star::datatransfer::clipboard; +using namespace com::sun::star::lang; +using namespace com::sun::star::uno; +using namespace cppu; +using namespace osl; + +using ::dtrans::ClipboardManager; + +static osl::Mutex g_InstanceGuard; +static rtl::Reference<ClipboardManager> g_Instance; +static bool g_Disposed = false; + + +ClipboardManager::ClipboardManager(): + WeakComponentImplHelper< XClipboardManager, XEventListener, XServiceInfo > (m_aMutex), + m_aDefaultName(OUString("default")) +{ +} + +ClipboardManager::~ClipboardManager() +{ +} + +OUString SAL_CALL ClipboardManager::getImplementationName( ) +{ + return "com.sun.star.comp.datatransfer.ClipboardManager"; +} + +sal_Bool SAL_CALL ClipboardManager::supportsService( const OUString& ServiceName ) +{ + return cppu::supportsService(this, ServiceName); +} + +Sequence< OUString > SAL_CALL ClipboardManager::getSupportedServiceNames( ) +{ + return { "com.sun.star.datatransfer.clipboard.ClipboardManager" }; +} + +Reference< XClipboard > SAL_CALL ClipboardManager::getClipboard( const OUString& aName ) +{ + MutexGuard aGuard(m_aMutex); + + // object is disposed already + if (rBHelper.bDisposed) + throw DisposedException("object is disposed.", + static_cast < XClipboardManager * > (this)); + + ClipboardMap::iterator iter = + m_aClipboardMap.find(aName.getLength() ? aName : m_aDefaultName); + + if (iter != m_aClipboardMap.end()) + return iter->second; + + throw NoSuchElementException(aName, static_cast < XClipboardManager * > (this)); +} + +void SAL_CALL ClipboardManager::addClipboard( const Reference< XClipboard >& xClipboard ) +{ + OSL_ASSERT(xClipboard.is()); + + // check parameter + if (!xClipboard.is()) + throw IllegalArgumentException("empty reference", + static_cast < XClipboardManager * > (this), 1); + + // the name "default" is reserved for internal use + OUString aName = xClipboard->getName(); + if ( m_aDefaultName == aName ) + throw IllegalArgumentException("name reserved", + static_cast < XClipboardManager * > (this), 1); + + // try to add new clipboard to the list + ClearableMutexGuard aGuard(m_aMutex); + if (!rBHelper.bDisposed && !rBHelper.bInDispose) + { + std::pair< const OUString, Reference< XClipboard > > value ( + aName.getLength() ? aName : m_aDefaultName, + xClipboard ); + + std::pair< ClipboardMap::iterator, bool > p = m_aClipboardMap.insert(value); + aGuard.clear(); + + // insert failed, element must exist already + if (!p.second) + throw ElementExistException(aName, static_cast < XClipboardManager * > (this)); + + // request disposing notifications + Reference< XComponent > xComponent(xClipboard, UNO_QUERY); + if (xComponent.is()) + xComponent->addEventListener(static_cast < XEventListener * > (this)); + } +} + +void SAL_CALL ClipboardManager::removeClipboard( const OUString& aName ) +{ + MutexGuard aGuard(m_aMutex); + if (!rBHelper.bDisposed) + m_aClipboardMap.erase(aName.getLength() ? aName : m_aDefaultName ); +} + +Sequence< OUString > SAL_CALL ClipboardManager::listClipboardNames() +{ + MutexGuard aGuard(m_aMutex); + + if (rBHelper.bDisposed) + throw DisposedException("object is disposed.", + static_cast < XClipboardManager * > (this)); + + if (rBHelper.bInDispose) + return Sequence< OUString > (); + + return comphelper::mapKeysToSequence(m_aClipboardMap); +} + +void SAL_CALL ClipboardManager::dispose() +{ + { + osl::MutexGuard aGuard(g_InstanceGuard); + g_Instance.clear(); + g_Disposed = true; + } + { + ClearableMutexGuard aGuard( rBHelper.rMutex ); + if (!rBHelper.bDisposed && !rBHelper.bInDispose) + { + rBHelper.bInDispose = true; + aGuard.clear(); + + // give everyone a chance to save his clipboard instance + EventObject aEvt(static_cast < XClipboardManager * > (this)); + rBHelper.aLC.disposeAndClear( aEvt ); + + // removeClipboard is still allowed here, so make a copy of the + // list (to ensure integrity) and clear the original. + ClearableMutexGuard aGuard2( rBHelper.rMutex ); + ClipboardMap aCopy(m_aClipboardMap); + m_aClipboardMap.clear(); + aGuard2.clear(); + + // dispose all clipboards still in list + for (auto const& elem : aCopy) + { + Reference< XComponent > xComponent(elem.second, UNO_QUERY); + if (xComponent.is()) + { + try + { + xComponent->removeEventListener(static_cast < XEventListener * > (this)); + xComponent->dispose(); + } + catch (const Exception&) + { + // exceptions can be safely ignored here. + } + } + } + + rBHelper.bDisposed = true; + rBHelper.bInDispose = false; + } + } +} + +void SAL_CALL ClipboardManager::disposing( const EventObject& event ) +{ + Reference < XClipboard > xClipboard(event.Source, UNO_QUERY); + + if (xClipboard.is()) + removeClipboard(xClipboard->getName()); +} + +extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface* +dtrans_ClipboardManager_get_implementation( + css::uno::XComponentContext* , css::uno::Sequence<css::uno::Any> const&) +{ + osl::MutexGuard aGuard(g_InstanceGuard); + if (g_Disposed) + return nullptr; + if (!g_Instance) + g_Instance.set(new ClipboardManager()); + g_Instance->acquire(); + return static_cast<cppu::OWeakObject*>(g_Instance.get()); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |