include/framework/documentundoguard.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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  19
  20 #ifndef INCLUDED_FRAMEWORK_DOCUMENTUNDOGUARD_HXX
  21 #define INCLUDED_FRAMEWORK_DOCUMENTUNDOGUARD_HXX
  22
  23 #include <framework/fwedllapi.h>
  24
  25 #include <com/sun/star/uno/XInterface.hpp>
  26
  27 #include <memory>
  28
  29 namespace framework
  30 {
  31     //= DocumentUndoGuard
  32
  33     struct DocumentUndoGuard_Data;
  34     /** a helper class guarding the Undo manager of a document
  35
  36         This class guards, within a given scope, the Undo Manager of a document (or another component supporting
  37         the XUndoManagerSupplier interface). When entering the scope (i.e. when the <code>DocumentUndoGuard</code>
  38         instances is constructed), the current state of the undo contexts of the undo manager is examined.
  39         Upon leaving the scope (i.e. when the <code>DocumentUndoGuard</code> is destructed), the guard will execute
  40         as many calls to <member scope="css::document">XUndoManager::leaveUndoContext</member> as are
  41         necessary to restore the manager's initial state.
  42     */
  43     class FWE_DLLPUBLIC DocumentUndoGuard
  44     {
  45     public:
  46         DocumentUndoGuard( const css::uno::Reference< css::uno::XInterface >& i_undoSupplierComponent );
  47         ~DocumentUndoGuard();
  48
  49     private:
  50         std::unique_ptr< DocumentUndoGuard_Data >   m_xData;
  51     };
  52
  53
  54 } // namespace framework
  55
  56
  57 #endif // INCLUDED_FRAMEWORK_DOCUMENTUNDOGUARD_HXX
  58
  59 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */