275 lines
14 KiB
C++
275 lines
14 KiB
C++
/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#ifndef __FRAMEWORK_HELPER_OCOMPONENTACCESS_HXX_
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#define __FRAMEWORK_HELPER_OCOMPONENTACCESS_HXX_
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//_________________________________________________________________________________________________________________
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// my own includes
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//_________________________________________________________________________________________________________________
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#include <threadhelp/threadhelpbase.hxx>
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#include <macros/generic.hxx>
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#include <macros/xinterface.hxx>
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#include <macros/xtypeprovider.hxx>
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#include <macros/debug.hxx>
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#include <general.h>
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//_________________________________________________________________________________________________________________
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// interface includes
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//_________________________________________________________________________________________________________________
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#include <com/sun/star/frame/XFramesSupplier.hpp>
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#include <com/sun/star/container/XEnumerationAccess.hpp>
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#include <com/sun/star/container/XElementAccess.hpp>
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#include <com/sun/star/container/XEnumeration.hpp>
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#include <com/sun/star/frame/XDesktop.hpp>
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#include <com/sun/star/lang/XComponent.hpp>
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//_________________________________________________________________________________________________________________
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// other includes
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//_________________________________________________________________________________________________________________
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#include <cppuhelper/implbase1.hxx>
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#include <cppuhelper/weakref.hxx>
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//_________________________________________________________________________________________________________________
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// namespace
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//_________________________________________________________________________________________________________________
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namespace framework{
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//_________________________________________________________________________________________________________________
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// exported const
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//_________________________________________________________________________________________________________________
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//_________________________________________________________________________________________________________________
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// exported definitions
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//_________________________________________________________________________________________________________________
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/*-************************************************************************************************************//**
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@short implement XEnumerationAccess interface as helper to create many oneway enumeration of components
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@descr We share mutex and framecontainer with ouer owner and have full access to his child tasks.
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(Ouer owner can be the Desktop only!) We create oneway enumerations on demand. These "lists"
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can be used for one time only. Step during the list from first to last element.
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(The type of created enumerations is OComponentEnumeration.)
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@implements XInterface
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XTypeProvider
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XEnumerationAccess
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XElementAccess
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@base ThreadHelpBase
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OWeakObject
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@devstatus ready to use
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*//*-*************************************************************************************************************/
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class OComponentAccess : private ThreadHelpBase , // Must be the first of baseclasses - Is neccessary for right initialization of objects!
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public ::cppu::WeakImplHelper1< ::com::sun::star::container::XEnumerationAccess >
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{
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//-------------------------------------------------------------------------------------------------------------
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// public methods
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//-------------------------------------------------------------------------------------------------------------
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public:
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//---------------------------------------------------------------------------------------------------------
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// constructor / destructor
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//---------------------------------------------------------------------------------------------------------
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/*-****************************************************************************************************//**
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@short constructor to initialize this instance
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@descr A desktop will create an enumeration-access-object. An enumeration is a oneway-list and a
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snapshot of the components of current tasks under the desktop.
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But we need a instance to create more then one enumerations at different times!
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@seealso class Desktop
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@seealso class OComponentEnumeration
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@param "xOwner" is a reference to ouer owner and must be the desktop!
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@return -
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@onerror Do nothing and reset this object to default with an empty list.
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*//*-*****************************************************************************************************/
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OComponentAccess( const css::uno::Reference< css::frame::XDesktop >& xOwner );
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//---------------------------------------------------------------------------------------------------------
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// XEnumerationAccess
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//---------------------------------------------------------------------------------------------------------
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/*-****************************************************************************************************//**
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@short create a new enumeration of components
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@descr You can call this method to get a new snapshot from all components of all tasks of the desktop as an enumeration.
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@seealso interface XEnumerationAccess
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@seealso interface XEnumeration
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@seealso class Desktop
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@param -
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@return If the desktop and some components exist => a valid reference to an enumeration<BR>
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An NULL-reference, other way.
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@onerror -
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*//*-*****************************************************************************************************/
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virtual css::uno::Reference< css::container::XEnumeration > SAL_CALL createEnumeration() throw( css::uno::RuntimeException );
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//---------------------------------------------------------------------------------------------------------
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// XElementAccess
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//---------------------------------------------------------------------------------------------------------
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/*-****************************************************************************************************//**
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@short get the type of elements in enumeration
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@descr -
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@seealso interface XElementAccess
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@seealso class OComponentEnumeration
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@param -
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@return The uno-type XComponent.
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@onerror -
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*//*-*****************************************************************************************************/
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virtual css::uno::Type SAL_CALL getElementType() throw( css::uno::RuntimeException );
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/*-****************************************************************************************************//**
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@short get state of componentlist of enumeration.
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@descr -
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@seealso interface XElementAccess
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@param -
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@return sal_True ,if more then 0 elements exist.
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@return sal_False ,otherwise.
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@onerror -
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*//*-*****************************************************************************************************/
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virtual sal_Bool SAL_CALL hasElements() throw( css::uno::RuntimeException );
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//-------------------------------------------------------------------------------------------------------------
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// protected methods
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//-------------------------------------------------------------------------------------------------------------
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protected:
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/*-****************************************************************************************************//**
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@short standard destructor
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@descr This method destruct an instance of this class and clear some member.
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Don't use an instance of this class as normal member. Use it dynamicly with a pointer.
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We hold a weakreference to ouer owner and not to ouer superclass!
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Thats the reason for a protected dtor.
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@seealso class Desktop
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@param -
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@return -
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@onerror -
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*//*-*****************************************************************************************************/
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virtual ~OComponentAccess();
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//-------------------------------------------------------------------------------------------------------------
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// private methods
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//-------------------------------------------------------------------------------------------------------------
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private:
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/*-****************************************************************************************************//**
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@short recursive method (!) to collect all components of all frames from the subtree of given node
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@descr This is neccessary to create the enumeration.
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@seealso method createEnumeration
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@param "xNode" , root of subtree and start point of search
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@param "seqComponents", result list of search. We cant use a return value, we search recursive
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and must collect all informations.
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@return -
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@onerror -
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*//*-*****************************************************************************************************/
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void impl_collectAllChildComponents( const css::uno::Reference< css::frame::XFramesSupplier >& xNode ,
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css::uno::Sequence< css::uno::Reference< css::lang::XComponent > >& seqComponents );
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/*-****************************************************************************************************//**
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@short get the component of a frame
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@descr The component of a frame can be the window, the controller or the model.
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@seealso method createEnumeration
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@param "xFrame", frame which contains the component
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@return A reference to the component of given frame.
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@onerror A null reference is returned.
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*//*-*****************************************************************************************************/
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css::uno::Reference< css::lang::XComponent > impl_getFrameComponent( const css::uno::Reference< css::frame::XFrame >& xFrame ) const;
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//-------------------------------------------------------------------------------------------------------------
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// debug methods
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// (should be private everyway!)
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//-------------------------------------------------------------------------------------------------------------
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/*-****************************************************************************************************//**
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@short debug-method to check incoming parameter of some other mehods of this class
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@descr The following methods are used to check parameters for other methods
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of this class. The return value is used directly for an ASSERT(...).
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@seealso ASSERTs in implementation!
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@param references to checking variables
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@return sal_False ,on invalid parameter.
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@return sal_True ,otherwise
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@onerror -
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*//*-*****************************************************************************************************/
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#ifdef ENABLE_ASSERTIONS
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private:
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static sal_Bool impldbg_checkParameter_OComponentAccessCtor( const css::uno::Reference< css::frame::XDesktop >& xOwner );
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#endif // #ifdef ENABLE_ASSERTIONS
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//-------------------------------------------------------------------------------------------------------------
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// variables
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// (should be private everyway!)
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//-------------------------------------------------------------------------------------------------------------
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private:
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css::uno::WeakReference< css::frame::XDesktop > m_xOwner ; /// weak reference to the desktop object!
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}; // class OComponentAccess
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} // namespace framework
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#endif // #ifndef __FRAMEWORK_HELPER_OCOMPONENTACCESS_HXX_
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