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Diffstat (limited to 'framework/inc/helper/oframes.hxx')
| -rw-r--r-- | framework/inc/helper/oframes.hxx | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/framework/inc/helper/oframes.hxx b/framework/inc/helper/oframes.hxx new file mode 100644 index 000000000..1da482c4e --- /dev/null +++ b/framework/inc/helper/oframes.hxx @@ -0,0 +1,193 @@ +/* -*- 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 <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 final : 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; + + private: + + /** + @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(); + + /** + @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 ); + + 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 + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |