xref: /trunk/main/framework/inc/helper/oframes.hxx (revision 914d351e5f5b84e4342a86d6ab8d4aca7308b9bd) !

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#ifndef __FRAMEWORK_HELPER_OFRAMES_HXX_
#define __FRAMEWORK_HELPER_OFRAMES_HXX_

//_________________________________________________________________________________________________________________
//  my own includes
//_________________________________________________________________________________________________________________

#include <classes/framecontainer.hxx>
#include <threadhelp/threadhelpbase.hxx>
#include <macros/generic.hxx>
#include <macros/xinterface.hxx>
#include <macros/xtypeprovider.hxx>
#include <macros/debug.hxx>
#include <general.h>

//_________________________________________________________________________________________________________________
//  interface includes
//_________________________________________________________________________________________________________________
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <com/sun/star/frame/XFrames.hpp>
#include <com/sun/star/frame/XFrame.hpp>

//_________________________________________________________________________________________________________________
//  other includes
//_________________________________________________________________________________________________________________
#include <cppuhelper/implbase1.hxx>
#include <cppuhelper/weakref.hxx>

//_________________________________________________________________________________________________________________
//  namespace
//_________________________________________________________________________________________________________________

namespace framework{

//_________________________________________________________________________________________________________________
//  exported const
//_________________________________________________________________________________________________________________

//_________________________________________________________________________________________________________________
//  exported definitions
//_________________________________________________________________________________________________________________

/*-************************************************************************************************************//**
    @short          implement XFrames, XIndexAccess and XElementAccess interfaces as helper for services
    @descr          Use this class as helper for these interfaces. We share mutex and framecontainer with our owner.
                    The framecontainer is a member of it from type "FrameContainer". That means;
                    we have the same information as our owner. In current implementation we use mutex and lock-mechanism
                    to prevent against compete access. In future we plan support of semaphore!

    @devstatus      deprecated
    @implements     XInterface
                    XFrames
                    XIndexAccess
                    XElementAccess
    @base           OWeakObject

    @ATTENTION      Don't use this class as direct member - use it dynamically. Do not derive from this class.
                    We hold a weakreference to our owner not to our superclass.

    @devstatus      deprecated
*//*-*************************************************************************************************************/

class OFrames   :   private ThreadHelpBase      ,   // Must be the first of baseclasses - Is necessary for right initialization of objects!
                    public ::cppu::WeakImplHelper1< ::com::sun::star::frame::XFrames >
{
    //-------------------------------------------------------------------------------------------------------------
    //  public methods
    //-------------------------------------------------------------------------------------------------------------

    public:

        //---------------------------------------------------------------------------------------------------------
        //  constructor / destructor
        //---------------------------------------------------------------------------------------------------------

        /*-****************************************************************************************************//**
            @short      standard ctor
            @descr      These initialize a new instance of this class with all needed informations for work.
                        We share framecontainer with owner implementation! It's a threadsafe container.

            @seealso    -

            @param      "xFactory"          , reference to factory which has created our owner(!). We can use these to create new uno-services.
            @param      "xOwner"            , reference to our owner. We hold a wekreference to prevent us against cross-references!
            @param      "pFrameContainer"   , pointer to shared framecontainer of owner. It's valid only, if weakreference is valid!
            @return     -

            @onerror    -
        *//*-*****************************************************************************************************/

        OFrames(    const   css::uno::Reference< css::lang::XMultiServiceFactory >& xFactory        ,
                    const   css::uno::Reference< css::frame::XFrame >&              xOwner          ,
                            FrameContainer*                                         pFrameContainer );

        //---------------------------------------------------------------------------------------------------------
        //  XFrames
        //---------------------------------------------------------------------------------------------------------

        /*-****************************************************************************************************//**
            @short      append frame to container
            @descr      We share the container with our owner. We can do this only, if no lock is set on container.
                        Valid references are accepted only!

            @seealso    class FrameContainer

            @param      "xFrame", reference to an existing frame to append.
            @return     -

            @onerror    We do nothing in release or throw an assert in debug version.
        *//*-*****************************************************************************************************/

        virtual void SAL_CALL append( const css::uno::Reference< css::frame::XFrame >& xFrame ) throw( css::uno::RuntimeException );

        /*-****************************************************************************************************//**
            @short      remove frame from container
            @descr      This is the companion to append(). We only accept valid references and don't work, if
                        a lock is set.

            @seealso    class FrameContainer

            @param      "xFrame", reference to an existing frame to remove.
            @return     -

            @onerror    We do nothing in release or throw an assert in debug version.
        *//*-*****************************************************************************************************/

        virtual void SAL_CALL remove( const css::uno::Reference< css::frame::XFrame >& xFrame ) throw( css::uno::RuntimeException );

        /*-****************************************************************************************************//**
            @short      return list of all applicable frames for given flags
            @descr      Call these to get a list of all frames, which are match with given search flags.

            @seealso    -

            @param      "nSearchFlag", flags to search right frames.
            @return     A list of founded frames.

            @onerror    An empty list is returned.
        *//*-*****************************************************************************************************/

        virtual css::uno::Sequence< css::uno::Reference< css::frame::XFrame > > SAL_CALL queryFrames( sal_Int32 nSearchFlags ) throw( css::uno::RuntimeException );

        //---------------------------------------------------------------------------------------------------------
        //  XIndexAccess
        //---------------------------------------------------------------------------------------------------------

        /*-****************************************************************************************************//**
            @short      get count of all current frames in container
            @descr      This is the beginning of full index-access. With a count you can step over all items in container.
                        Next call should be getByIndex(). But these mechanism works only, if no lock in container is set!

            @seealso    class FrameContainer
            @seealso    method getByIndex()

            @param      -
            @return     Count of current items in container.

            @onerror    If a lock is set, we return 0 for prevent further access!
        *//*-*****************************************************************************************************/

        virtual sal_Int32 SAL_CALL getCount() throw( css::uno::RuntimeException );

        /*-****************************************************************************************************//**
            @short      get specified container item by index
            @descr      If you called getCount() successful - this method return the specified element as an Any.
                        You must observe the range from 0 to count-1! Otherwise an IndexOutOfBoundsException is thrown.

            @seealso    class FrameContainer
            @seealso    method getCount()

            @param      "nIndex", valid index to get container item.
            @return     A container item (specified by index) wrapped in an Any.

            @onerror    If a lock is set, we return an empty Any!
            @onerror    If index out of range, an IndexOutOfBoundsException is thrown.
        *//*-*****************************************************************************************************/

        virtual css::uno::Any SAL_CALL getByIndex( sal_Int32 nIndex ) throw(    css::lang::IndexOutOfBoundsException    ,
                                                                                css::lang::WrappedTargetException       ,
                                                                                css::uno::RuntimeException              );

        //---------------------------------------------------------------------------------------------------------
        //  XElementAccess
        //---------------------------------------------------------------------------------------------------------

        /*-****************************************************************************************************//**
            @short      get uno-type of all container items
            @descr      In current implementation type is fixed to XFrame!
                        (container-lock is ignored)

            @seealso    -

            @param      -
            @return     A uno-type descriptor.

            @onerror    -
        *//*-*****************************************************************************************************/

        virtual css::uno::Type SAL_CALL getElementType() throw( css::uno::RuntimeException );

        /*-****************************************************************************************************//**
            @short      get fill state of current container
            @descr      Call these to get information about, if items exist in container or not.
                        (container-lock is ignored)

            @seealso    -

            @param      -
            @return     sal_True, if container contains some items.
            @return     sal_False, otherwise.

            @onerror    We return sal_False.
        *//*-*****************************************************************************************************/

        virtual sal_Bool SAL_CALL hasElements() throw( css::uno::RuntimeException );

    //-------------------------------------------------------------------------------------------------------------
    //  protected methods
    //-------------------------------------------------------------------------------------------------------------

    protected:

        /*-****************************************************************************************************//**
            @short      standard destructor
            @descr      This method destruct an instance of this class and clear some member.
                        This method is protected, because its not allowed to use this class as a member!
                        You MUST use a dynamical instance (pointer). That's the reason for a protected dtor.

            @seealso    -

            @param      -
            @return     -

            @onerror    -
        *//*-*****************************************************************************************************/

        virtual ~OFrames();

        /*-****************************************************************************************************//**
            @short      reset instance to default values
            @descr      There are two ways to delete an instance of this class.<BR>
                        1) delete with destructor<BR>
                        2) dispose from parent or factory ore ...<BR>
                        This method do the same for both ways! It free used memory and release references ...

            @seealso    method dispose() (if it exist!)
            @seealso    destructor ~TaskEnumeration()

            @param      -

            @return     -

            @onerror    -
        *//*-*****************************************************************************************************/

        virtual void impl_resetObject();

    //-------------------------------------------------------------------------------------------------------------
    //  private methods
    //-------------------------------------------------------------------------------------------------------------

    private:

        /*-****************************************************************************************************//**
            @short      append one sequence to another
            @descr      There is no operation to add to sequences! Use this helper-method to do this.

            @seealso    class Sequence

            @param      "seqDestination", reference to sequence on which operation will append the other sequence.
            @param      "seqSource"     , reference to sequence for append.
            @return     "seqDestination" is parameter AND return value at the same time.

            @onerror    -
        *//*-*****************************************************************************************************/

        void impl_appendSequence(           css::uno::Sequence< css::uno::Reference< css::frame::XFrame > >&    seqDestination  ,
                                    const   css::uno::Sequence< css::uno::Reference< css::frame::XFrame > >&    seqSource       );

    //-------------------------------------------------------------------------------------------------------------
    //  debug methods
    //  (should be private everyway!)
    //-------------------------------------------------------------------------------------------------------------

        /*-****************************************************************************************************//**
            @short      debug-method to check incoming parameter of some other methods of this class
            @descr      The following methods are used to check parameters for other methods
                        of this class. The return value is used directly for an ASSERT(...).

            @seealso    ASSERTs in implementation!

            @param      references to checking variables
            @return     sal_False ,on invalid parameter
            @return     sal_True  ,otherwise

            @onerror    -
        *//*-*****************************************************************************************************/

    #ifdef ENABLE_ASSERTIONS

    private:

        static sal_Bool impldbg_checkParameter_OFramesCtor  (   const   css::uno::Reference< css::lang::XMultiServiceFactory >& xFactory        ,
                                                                const   css::uno::Reference< css::frame::XFrame >&              xOwner          ,
                                                                        FrameContainer*                                         pFrameContainer );
        static sal_Bool impldbg_checkParameter_append       (   const   css::uno::Reference< css::frame::XFrame >&              xFrame          );
        static sal_Bool impldbg_checkParameter_remove       (   const   css::uno::Reference< css::frame::XFrame >&              xFrame          );
        static sal_Bool impldbg_checkParameter_queryFrames  (           sal_Int32                                               nSearchFlags    );

    #endif  // #ifdef ENABLE_ASSERTIONS

    //-------------------------------------------------------------------------------------------------------------
    //  variables
    //  (should be private everyway!)
    //-------------------------------------------------------------------------------------------------------------

    private:

        css::uno::Reference< css::lang::XMultiServiceFactory >      m_xFactory                      ;   /// reference to global servicemanager
        css::uno::WeakReference< css::frame::XFrame >               m_xOwner                        ;   /// reference to owner of this instance (Hold no hard reference!)
        FrameContainer*                                             m_pFrameContainer               ;   /// with owner shared list to hold all direct childs of an XFramesSupplier
        sal_Bool                                                    m_bRecursiveSearchProtection    ;   /// flag to protect against recursive searches of frames at parents

};      //  class OFrames

}       //  namespace framework

#endif  //  #ifndef __FRAMEWORK_HELPER_OFRAMES_HXX_