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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 16:51:28 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 16:51:28 +0000
commit940b4d1848e8c70ab7642901a68594e8016caffc (patch)
treeeb72f344ee6c3d9b80a7ecc079ea79e9fba8676d /framework/inc/helper/oframes.hxx
parentInitial commit. (diff)
downloadlibreoffice-940b4d1848e8c70ab7642901a68594e8016caffc.tar.xz
libreoffice-940b4d1848e8c70ab7642901a68594e8016caffc.zip
Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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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 <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: */