/**************************************************************
*
* 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
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*************************************************************/
#ifndef __FRAMEWORK_HELPER_OCOMPONENTACCESS_HXX_
#define __FRAMEWORK_HELPER_OCOMPONENTACCESS_HXX_
//_________________________________________________________________________________________________________________
// my own includes
//_________________________________________________________________________________________________________________
#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/frame/XFramesSupplier.hpp>
#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>
#include <com/sun/star/lang/XComponent.hpp>
//_________________________________________________________________________________________________________________
// other includes
//_________________________________________________________________________________________________________________
#include <cppuhelper/implbase1.hxx>
#include <cppuhelper/weakref.hxx>
//_________________________________________________________________________________________________________________
// namespace
//_________________________________________________________________________________________________________________
namespace framework{
//_________________________________________________________________________________________________________________
// exported const
//_________________________________________________________________________________________________________________
//_________________________________________________________________________________________________________________
// exported definitions
//_________________________________________________________________________________________________________________
/*-************************************************************************************************************//**
@short implement XEnumerationAccess interface as helper to create many oneway enumeration of components
@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 OComponentEnumeration.)
@implements XInterface
XTypeProvider
XEnumerationAccess
XElementAccess
@base ThreadHelpBase
OWeakObject
@devstatus ready to use
*//*-*************************************************************************************************************/
class OComponentAccess : private ThreadHelpBase , // Must be the first of baseclasses - Is necessary for right initialization of objects!
public ::cppu::WeakImplHelper1< ::com::sun::star::container::XEnumerationAccess >
{
//-------------------------------------------------------------------------------------------------------------
// 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 components of current tasks under the desktop.
But we need a instance to create more then one enumerations at different times!
@seealso class Desktop
@seealso class OComponentEnumeration
@param "xOwner" is a reference to ouer owner and must be the desktop!
@return -
@onerror Do nothing and reset this object to default with an empty list.
*//*-*****************************************************************************************************/
OComponentAccess( const css::uno::Reference< css::frame::XDesktop >& xOwner );
//---------------------------------------------------------------------------------------------------------
// XEnumerationAccess
//---------------------------------------------------------------------------------------------------------
/*-****************************************************************************************************//**
@short create a new enumeration of components
@descr You can call this method to get a new snapshot from all components of all tasks of the desktop as an enumeration.
@seealso interface XEnumerationAccess
@seealso interface XEnumeration
@seealso class Desktop
@param -
@return If the desktop and some components 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 OComponentEnumeration
@param -
@return The uno-type XComponent.
@onerror -
*//*-*****************************************************************************************************/
virtual css::uno::Type SAL_CALL getElementType() throw( css::uno::RuntimeException );
/*-****************************************************************************************************//**
@short get state of componentlist 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!
That's the reason for a protected dtor.
@seealso class Desktop
@param -
@return -
@onerror -
*//*-*****************************************************************************************************/
virtual ~OComponentAccess();
//-------------------------------------------------------------------------------------------------------------
// private methods
//-------------------------------------------------------------------------------------------------------------
private:
/*-****************************************************************************************************//**
@short recursive method (!) to collect all components of all frames from the subtree of given node
@descr This is necessary to create the enumeration.
@seealso method createEnumeration
@param "xNode" , root of subtree and start point of search
@param "seqComponents", result list of search. We can't use a return value, we search recursive
and must collect all informations.
@return -
@onerror -
*//*-*****************************************************************************************************/
void impl_collectAllChildComponents( const css::uno::Reference< css::frame::XFramesSupplier >& xNode ,
css::uno::Sequence< css::uno::Reference< css::lang::XComponent > >& seqComponents );
/*-****************************************************************************************************//**
@short get the component of a frame
@descr The component of a frame can be the window, the controller or the model.
@seealso method createEnumeration
@param "xFrame", frame which contains the component
@return A reference to the component of given frame.
@onerror A null reference is returned.
*//*-*****************************************************************************************************/
css::uno::Reference< css::lang::XComponent > impl_getFrameComponent( const css::uno::Reference< css::frame::XFrame >& xFrame ) const;
//-------------------------------------------------------------------------------------------------------------
// 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_OComponentAccessCtor( const css::uno::Reference< css::frame::XDesktop >& xOwner );
#endif // #ifdef ENABLE_ASSERTIONS
//-------------------------------------------------------------------------------------------------------------
// variables
// (should be private everyway!)
//-------------------------------------------------------------------------------------------------------------
private:
css::uno::WeakReference< css::frame::XDesktop > m_xOwner ; /// weak reference to the desktop object!
}; // class OComponentAccess
} // namespace framework
#endif // #ifndef __FRAMEWORK_HELPER_OCOMPONENTACCESS_HXX_