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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 __FRAMEWORK_HELPER_OTASKSACCESS_HXX_
#define __FRAMEWORK_HELPER_OTASKSACCESS_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>
//_________________________________________________________________________________________________________________
// interface includes
//_________________________________________________________________________________________________________________
#include <com/sun/star/container/XEnumerationAccess.hpp>
#include <com/sun/star/container/XElementAccess.hpp>
#include <com/sun/star/container/XEnumeration.hpp>
#include <com/sun/star/frame/XDesktop.hpp>
//_________________________________________________________________________________________________________________
// other includes
//_________________________________________________________________________________________________________________
#include <cppuhelper/weak.hxx>
#include <cppuhelper/weakref.hxx>
//_________________________________________________________________________________________________________________
// namespace
//_________________________________________________________________________________________________________________
namespace framework{
//_________________________________________________________________________________________________________________
// exported const
//_________________________________________________________________________________________________________________
//_________________________________________________________________________________________________________________
// exported definitions
//_________________________________________________________________________________________________________________
/*-************************************************************************************************************//**
@short implement XEnumerationAccess interface as helper to create many oneway enumeration of tasks
@descr We share mutex and framecontainer with ouer owner and have full access to his child tasks.
(Ouer owner can be the Desktop only!) We create oneway enumerations on demand. These "lists"
can be used for one time only. Step during the list from first to last element.
(The type of created enumerations is OTasksEnumeration.)
@implements XInterface
XEnumerationAccess
XElementAccess
@base OWeakObject
@devstatus deprecated
*//*-*************************************************************************************************************/
class OTasksAccess : public css::lang::XTypeProvider ,
public css::container::XEnumerationAccess , // => XElementAccess
private ThreadHelpBase ,
public ::cppu::OWeakObject
{
//-------------------------------------------------------------------------------------------------------------
// public methods
//-------------------------------------------------------------------------------------------------------------
public:
//---------------------------------------------------------------------------------------------------------
// constructor / destructor
//---------------------------------------------------------------------------------------------------------
/*-****************************************************************************************************//**
@short constructor to initialize this instance
@descr A desktop will create an enumeration-access-object. An enumeration is a oneway-list and a
snapshot of the tasklist of current tasks of desktop.
But we need a instance to create more then one enumerations to the same tasklist!
@seealso class Desktop
@seealso class OTasksEnumeration
@param "xOwner" is a reference to ouer owner and must be the desktop!
@param "pTasks" is a pointer to the taskcontainer of the desktop. We need it to create a new enumeration.
@return -
@onerror Do nothing and reset this object to default with an empty list.
*//*-*****************************************************************************************************/
OTasksAccess( const css::uno::Reference< css::frame::XDesktop >& xOwner ,
FrameContainer* pTasks );
//---------------------------------------------------------------------------------------------------------
// XInterface
//---------------------------------------------------------------------------------------------------------
DECLARE_XINTERFACE
DECLARE_XTYPEPROVIDER
//---------------------------------------------------------------------------------------------------------
// XEnumerationAccess
//---------------------------------------------------------------------------------------------------------
/*-****************************************************************************************************//**
@short create a new enumeration of tasks
@descr You can call this method to get a new snapshot to all tasks of the desktop as an enumeration.
@seealso interface XEnumerationAccess
@seealso interface XEnumeration
@seealso class Desktop
@param -
@return If the desktop and some tasks exist => a valid reference to an enumeration<BR>
An NULL-reference, other way.
@onerror -
*//*-*****************************************************************************************************/
virtual css::uno::Reference< css::container::XEnumeration > SAL_CALL createEnumeration() throw( css::uno::RuntimeException );
//---------------------------------------------------------------------------------------------------------
// XElementAccess
//---------------------------------------------------------------------------------------------------------
/*-****************************************************************************************************//**
@short get the type of elements in enumeration
@descr -
@seealso interface XElementAccess
@seealso class TasksEnumeration
@param -
@return The uno-type XTask.
@onerror -
*//*-*****************************************************************************************************/
virtual css::uno::Type SAL_CALL getElementType() throw( css::uno::RuntimeException );
/*-****************************************************************************************************//**
@short get state of tasklist of enumeration.
@descr -
@seealso interface XElementAccess
@param -
@return sal_True ,if more then 0 elements exist.
@return sal_False ,otherwise.
@onerror -
*//*-*****************************************************************************************************/
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.
Don't use an instance of this class as normal member. Use it dynamicly with a pointer.
We hold a weakreference to ouer owner and not to ouer superclass!
Thats the reason for a protected dtor.
@seealso class Desktop
@param -
@return -
@onerror -
*//*-*****************************************************************************************************/
virtual ~OTasksAccess();
//-------------------------------------------------------------------------------------------------------------
// private methods
//-------------------------------------------------------------------------------------------------------------
private:
//-------------------------------------------------------------------------------------------------------------
// debug methods
// (should be private everyway!)
//-------------------------------------------------------------------------------------------------------------
/*-****************************************************************************************************//**
@short debug-method to check incoming parameter of some other mehods 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_OTasksAccessCtor( const css::uno::Reference< css::frame::XDesktop >& xOwner ,
FrameContainer* pTasks );
#endif // #ifdef ENABLE_ASSERTIONS
//-------------------------------------------------------------------------------------------------------------
// variables
// (should be private everyway!)
//-------------------------------------------------------------------------------------------------------------
private:
css::uno::WeakReference< css::frame::XDesktop > m_xOwner ; /// weak reference to the desktop object!
FrameContainer* m_pTasks ; /// pointer to list of current tasks on desktop (is a member of class Desktop!)
/// This pointer is valid only, if weakreference can be locked.
}; // class OTasksAccess
} // namespace framework
#endif // #ifndef __FRAMEWORK_HELPER_OTASKSACCESS_HXX_
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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