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/* -*- 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_DBACCESS_SOURCE_UI_INC_CALLBACKS_HXX
#define INCLUDED_DBACCESS_SOURCE_UI_INC_CALLBACKS_HXX

#include <sot/exchange.hxx>

class SvTreeListEntry;
class Point;
class PopupMenu;
class Control;
struct AcceptDropEvent;
struct ExecuteDropEvent;

namespace comphelper { class OInterfaceContainerHelper2; }

namespace dbaui
{

    class IController;
    // IControlActionListener
    class SAL_NO_VTABLE IControlActionListener
    {
    public:
        /** requests a quick help text to display
            @return <FALSE/> if the default quick help text should be used
        */
        virtual bool    requestQuickHelp( const SvTreeListEntry* _pEntry, OUString& _rText ) const = 0;

        /** handler for StartDrag requests
            @return <TRUE/> if a drag operation was started
        */
        virtual bool    requestDrag( const Point& _rPosPixel ) = 0;

        /** check whether or not a drop request should be accepted
        */
        virtual sal_Int8    queryDrop( const AcceptDropEvent& _rEvt, const DataFlavorExVector& _rFlavors ) = 0;

        /** execute a drop request
        */
        virtual sal_Int8    executeDrop( const ExecuteDropEvent& _rEvt ) = 0;

    protected:
        ~IControlActionListener() {}
    };

    // IContextMenuProvider
    class SAL_NO_VTABLE IContextMenuProvider
    {
    public:
        /** returns the context menu resource name for the control

            Supposed to be a valid name from uiconfig/<module>/popupmenu folder.
        */
        virtual OUString getContextMenuResourceName( Control& _rControl ) const = 0;

        /** returns the controller which is responsible for providing states of certain features,
            and executing them.
        */
        virtual IController&    getCommandController() = 0;

        /** returns the container of registered context menu interceptors, or NULL if the implementation
            does not support context menu interception
        */
        virtual ::comphelper::OInterfaceContainerHelper2*
                                getContextMenuInterceptors() = 0;

        /** returns the current selection in the given control

            This selection is used for filling a ContextMenuExecuteEvent event for the given
            control.
        */
        virtual css::uno::Any  getCurrentSelection( Control& _rControl ) const = 0;

    protected:
        ~IContextMenuProvider() {}
    };

    // IDragTransferableListener
    class SAL_NO_VTABLE IDragTransferableListener
    {
    public:
        /// called when a drag operation done with a Transferable has been finished
        virtual void        dragFinished( ) = 0;

    protected:
        ~IDragTransferableListener() {}
    };

}   // namespace dbaui

#endif // INCLUDED_DBACCESS_SOURCE_UI_INC_CALLBACKS_HXX

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