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, 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: */