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| -rw-r--r-- | sfx2/source/inc/docundomanager.hxx | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/sfx2/source/inc/docundomanager.hxx b/sfx2/source/inc/docundomanager.hxx new file mode 100644 index 000000000..98bf827fb --- /dev/null +++ b/sfx2/source/inc/docundomanager.hxx @@ -0,0 +1,159 @@ +/* -*- 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 . + */ + +#ifndef INCLUDED_SFX2_SOURCE_INC_DOCUNDOMANAGER_HXX +#define INCLUDED_SFX2_SOURCE_INC_DOCUNDOMANAGER_HXX + +#include <sfx2/sfxbasemodel.hxx> + +#include <com/sun/star/document/XUndoManager.hpp> + +#include <cppuhelper/implbase.hxx> +#include <vcl/svapp.hxx> + +#include <memory> + +/** base class for sub components of an SfxBaseModel, which share their ref count and lifetime with the SfxBaseModel +*/ +class SfxModelSubComponent +{ +public: + /** checks whether the instance is alive, i.e. properly initialized, and not yet disposed + */ + void MethodEntryCheck() + { + m_rModel.MethodEntryCheck( true ); + } + +protected: + SfxModelSubComponent( SfxBaseModel& i_model ) + :m_rModel( i_model ) + { + } + virtual ~SfxModelSubComponent(); + + void acquireModel() { m_rModel.acquire(); } + void releaseModel() { m_rModel.release(); } + +protected: + const SfxBaseModel& getBaseModel() const { return m_rModel; } + SfxBaseModel& getBaseModel() { return m_rModel; } + +private: + SfxBaseModel& m_rModel; +}; + +class SfxModelGuard +{ +public: + enum AllowedModelState + { + // not yet initialized + E_INITIALIZING, + // fully alive, i.e. initialized, and not yet disposed + E_FULLY_ALIVE + }; + + SfxModelGuard( SfxBaseModel const & i_rModel, const AllowedModelState i_eState = E_FULLY_ALIVE ) + : m_aGuard() + { + i_rModel.MethodEntryCheck( i_eState != E_INITIALIZING ); + } + SfxModelGuard( SfxModelSubComponent& i_rSubComponent ) + :m_aGuard() + { + i_rSubComponent.MethodEntryCheck(); + } + + void clear() + { + m_aGuard.clear(); + } + +private: + SolarMutexClearableGuard m_aGuard; +}; + +namespace sfx2 +{ + //= DocumentUndoManager + + struct DocumentUndoManager_Impl; + class DocumentUndoManager final : public ::cppu::WeakImplHelper<css::document::XUndoManager> + ,public SfxModelSubComponent + { + friend struct DocumentUndoManager_Impl; + + public: + DocumentUndoManager( SfxBaseModel& i_document ); + virtual ~DocumentUndoManager() override; + DocumentUndoManager(const DocumentUndoManager&) = delete; + DocumentUndoManager& operator=(const DocumentUndoManager&) = delete; + + void disposing(); + + // non-UNO API for our owner + /** determines whether we have an open Undo context. No mutex locking within this method, no disposal check - this + is the responsibility of the owner. + */ + bool isInContext() const; + + // XInterface + virtual void SAL_CALL acquire( ) noexcept override; + virtual void SAL_CALL release( ) noexcept override; + + // XUndoManager + virtual void SAL_CALL enterUndoContext( const OUString& i_title ) override; + virtual void SAL_CALL enterHiddenUndoContext( ) override; + virtual void SAL_CALL leaveUndoContext( ) override; + virtual void SAL_CALL addUndoAction( const css::uno::Reference< css::document::XUndoAction >& i_action ) override; + virtual void SAL_CALL undo( ) override; + virtual void SAL_CALL redo( ) override; + virtual sal_Bool SAL_CALL isUndoPossible( ) override; + virtual sal_Bool SAL_CALL isRedoPossible( ) override; + virtual OUString SAL_CALL getCurrentUndoActionTitle( ) override; + virtual OUString SAL_CALL getCurrentRedoActionTitle( ) override; + virtual css::uno::Sequence< OUString > SAL_CALL getAllUndoActionTitles( ) override; + virtual css::uno::Sequence< OUString > SAL_CALL getAllRedoActionTitles( ) override; + virtual void SAL_CALL clear( ) override; + virtual void SAL_CALL clearRedo( ) override; + virtual void SAL_CALL reset( ) override; + virtual void SAL_CALL addUndoManagerListener( const css::uno::Reference< css::document::XUndoManagerListener >& i_listener ) override; + virtual void SAL_CALL removeUndoManagerListener( const css::uno::Reference< css::document::XUndoManagerListener >& i_listener ) override; + + // XLockable, base of XUndoManager + virtual void SAL_CALL lock( ) override; + virtual void SAL_CALL unlock( ) override; + virtual sal_Bool SAL_CALL isLocked( ) override; + + // XChild, base of XUndoManager + virtual css::uno::Reference< css::uno::XInterface > SAL_CALL getParent( ) override; + virtual void SAL_CALL setParent( const css::uno::Reference< css::uno::XInterface >& Parent ) override; + + private: + std::unique_ptr< DocumentUndoManager_Impl > m_pImpl; + }; + + +} // namespace sfx2 + + +#endif // INCLUDED_SFX2_SOURCE_INC_DOCUNDOMANAGER_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |