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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_FRAMEWORK_INC_HELPER_OFRAMES_HXX
#define INCLUDED_FRAMEWORK_INC_HELPER_OFRAMES_HXX
#include <classes/framecontainer.hxx>
#include <macros/xinterface.hxx>
#include <macros/xtypeprovider.hxx>
#include <general.h>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <com/sun/star/frame/XFrames.hpp>
#include <com/sun/star/frame/XFrame.hpp>
#include <cppuhelper/implbase.hxx>
#include <cppuhelper/weakref.hxx>
namespace framework{
/**
@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
@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.
*/
class OFrames : public ::cppu::WeakImplHelper< css::frame::XFrames >
{
public:
/**
@short standard ctor
@descr These initialize a new instance of this class with all needed information for work.
We share framecontainer with owner implementation! It's a threadsafe container.
@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!
*/
OFrames( 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.
@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 ) override;
/**
@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.
@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 ) override;
/**
@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.
@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 ) override;
// 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()
@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() override;
/**
@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 ) override;
// XElementAccess
/**
@short get uno-type of all container items
@descr In current implementation type is fixed to XFrame!
(container-lock is ignored)
@return A uno-type descriptor.
*/
virtual css::uno::Type SAL_CALL getElementType() override;
/**
@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)
@return sal_True, if container contains some items.
@return sal_False, otherwise.
@onerror We return sal_False.
*/
virtual sal_Bool SAL_CALL hasElements() override;
protected:
/**
@short standard destructor
@descr This method destruct an instance of this class and clear some member.
This method is protected, because it's not allowed to use this class as a member!
You MUST use a dynamical instance (pointer). That's the reason for a protected dtor.
*/
virtual ~OFrames() override;
/**
@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()
*/
void impl_resetObject();
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.
*/
void impl_appendSequence( css::uno::Sequence< css::uno::Reference< css::frame::XFrame > >& seqDestination ,
const css::uno::Sequence< css::uno::Reference< css::frame::XFrame > >& seqSource );
private:
static bool impldbg_checkParameter_queryFrames ( sal_Int32 nSearchFlags );
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 children of an XFramesSupplier
bool m_bRecursiveSearchProtection; /// flag to protect against recursive searches of frames at parents
};
}
#endif
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