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| -rw-r--r-- | framework/source/classes/framecontainer.cxx | 293 |
1 files changed, 293 insertions, 0 deletions
diff --git a/framework/source/classes/framecontainer.cxx b/framework/source/classes/framecontainer.cxx new file mode 100644 index 000000000..a23e3633e --- /dev/null +++ b/framework/source/classes/framecontainer.cxx @@ -0,0 +1,293 @@ +/* -*- 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 . + */ + +#include <framework/framecontainer.hxx> + +#include <com/sun/star/frame/FrameSearchFlag.hpp> + +#include <vcl/svapp.hxx> +#include <comphelper/sequence.hxx> +#include <sal/log.hxx> + +namespace framework +{ +/**-*************************************************************************************************************** + @short initialize an empty container + @descr The container will be empty then - special features (e.g. the async quit mechanism) are disabled. + + @threadsafe not necessary - it's not a singleton + *****************************************************************************************************************/ +FrameContainer::FrameContainer() +/*DEPRECATEME + , m_bAsyncQuit ( sal_False ) // default must be "disabled"! + , m_aAsyncCall ( LINK( this, FrameContainer, implts_asyncQuit ) ) +*/ +{ +} + +/**-*************************************************************************************************************** + @short deinitialize may a filled container + @descr Special features (if the currently are running) will be disabled and we free all used other resources. + + @threadsafe not necessary - it's not a singleton + *****************************************************************************************************************/ +FrameContainer::~FrameContainer() +{ + // Don't forget to free memory! + m_aContainer.clear(); + m_xActiveFrame.clear(); +} + +/**-*************************************************************************************************************** + @short append a new frame to the container + @descr We accept the incoming frame only, if it is a valid reference and doesn't exist already. + + @param xFrame + frame, which should be added to this container + Must be a valid reference. + + @threadsafe yes + *****************************************************************************************************************/ +void FrameContainer::append(const css::uno::Reference<css::frame::XFrame>& xFrame) +{ + if (xFrame.is() && !exist(xFrame)) + { + SolarMutexGuard g; + m_aContainer.push_back(xFrame); + } +} + +/**-*************************************************************************************************************** + @short remove a frame from the container + @descr In case we remove the last frame and our internal special feature (the async quit mechanism) + was enabled by the desktop instance, we start it. + + @param xFrame + frame, which should be deleted from this container + Must be a valid reference. + + @threadsafe yes + *****************************************************************************************************************/ +void FrameContainer::remove(const css::uno::Reference<css::frame::XFrame>& xFrame) +{ + SolarMutexGuard g; + + TFrameContainer::iterator aSearchedItem + = ::std::find(m_aContainer.begin(), m_aContainer.end(), xFrame); + if (aSearchedItem != m_aContainer.end()) + { + m_aContainer.erase(aSearchedItem); + + // If removed frame was the current active frame - reset state variable. + if (m_xActiveFrame == xFrame) + m_xActiveFrame.clear(); + } +} + +/**-*************************************************************************************************************** + @short check if the given frame currently exist inside the container + @param xFrame + reference to the queried frame + + @return <TRUE/> if frame is part of this container + <FALSE/> otherwise + + @threadsafe yes + *****************************************************************************************************************/ +bool FrameContainer::exist(const css::uno::Reference<css::frame::XFrame>& xFrame) const +{ + SolarMutexGuard g; + return (::std::find(m_aContainer.begin(), m_aContainer.end(), xFrame) != m_aContainer.end()); +} + +/**-*************************************************************************************************************** + @short delete all existing items of the container + @threadsafe yes + *****************************************************************************************************************/ +void FrameContainer::clear() +{ + SolarMutexGuard g; + // Clear the container ... + m_aContainer.clear(); + // ... and don't forget to reset the active frame. + // It's a reference to a valid container-item. + // But no container item => no active frame! + m_xActiveFrame.clear(); +} + +/**-*************************************************************************************************************** + @short returns count of all current existing frames + @deprecated This value can't be guaranteed for multithreading environments. + So it will be marked as deprecated and should be replaced by "getAllElements()". + + @return the count of existing container items + + @threadsafe yes + *****************************************************************************************************************/ +sal_uInt32 FrameContainer::getCount() const +{ + SolarMutexGuard g; + return static_cast<sal_uInt32>(m_aContainer.size()); +} + +/**-*************************************************************************************************************** + @short returns one item of this container + @deprecated This value can't be guaranteed for multithreading environments. + So it will be marked as deprecated and should be replaced by "getAllElements()". + + @param nIndex + a value between 0 and (getCount()-1) to address one container item + + @return a reference to a frame inside the container, which match with given index + + @threadsafe yes + *****************************************************************************************************************/ +css::uno::Reference<css::frame::XFrame> FrameContainer::operator[](sal_uInt32 nIndex) const +{ + css::uno::Reference<css::frame::XFrame> xFrame; + try + { + // Get element form container WITH automatic test of ranges! + // If index not valid, an out_of_range exception is thrown. + SolarMutexGuard g; + xFrame = m_aContainer.at(nIndex); + } + catch (const std::out_of_range&) + { + // The index is not valid for current container-content - we must handle this case! + // We can return the default value ... + SAL_INFO("fwk", "FrameContainer::operator[]: Exception caught: std::out_of_range"); + } + return xFrame; +} + +/**-*************************************************************************************************************** + @short returns a snapshot of all currently existing frames inside this container + @descr Should be used to replace the deprecated functions getCount()/operator[]! + + @return a list of all frame references inside this container + + @threadsafe yes + *****************************************************************************************************************/ +css::uno::Sequence<css::uno::Reference<css::frame::XFrame>> FrameContainer::getAllElements() const +{ + SolarMutexGuard g; + return comphelper::containerToSequence(m_aContainer); +} + +/**-*************************************************************************************************************** + @short set the given frame as the new active one inside this container + @descr We accept this frame only, if it's already a part of this container. + + @param xFrame + reference to the new active frame + Must be a valid reference and already part of this container. + + @threadsafe yes + *****************************************************************************************************************/ +void FrameContainer::setActive(const css::uno::Reference<css::frame::XFrame>& xFrame) +{ + if (!xFrame.is() || exist(xFrame)) + { + SolarMutexGuard g; + m_xActiveFrame = xFrame; + } +} + +/**-*************************************************************************************************************** + @short return the current active frame of this container + @descr Value can be null in case the frame was removed from the container and nobody + from outside decide which of all others should be the new one... + + @return a reference to the current active frame + Value can be NULL! + + @threadsafe yes + *****************************************************************************************************************/ +css::uno::Reference<css::frame::XFrame> FrameContainer::getActive() const +{ + SolarMutexGuard g; + return m_xActiveFrame; +} + +/**-*************************************************************************************************************** + @short implements a simple search based on current container items + @descr It can be used for findFrame() and implements a deep down search. + + @param sName + target name, which is searched + + @return reference to the found frame or NULL if not. + + @threadsafe yes + *****************************************************************************************************************/ +css::uno::Reference<css::frame::XFrame> +FrameContainer::searchOnAllChildrens(const OUString& sName) const +{ + SolarMutexGuard g; + // Step over all child frames. But if direct child isn't the right one search on his children first - before + // you go to next direct child of this container! + css::uno::Reference<css::frame::XFrame> xSearchedFrame; + for (auto const& container : m_aContainer) + { + if (container->getName() == sName) + { + xSearchedFrame = container; + break; + } + else + { + xSearchedFrame = container->findFrame(sName, css::frame::FrameSearchFlag::CHILDREN); + if (xSearchedFrame.is()) + break; + } + } + return xSearchedFrame; +} + +/**-*************************************************************************************************************** + @short implements a simple search based on current container items + @descr It can be used for findFrame() and search on members of this container only! + + @param sName + target name, which is searched + + @return reference to the found frame or NULL if not. + + @threadsafe yes + *****************************************************************************************************************/ +css::uno::Reference<css::frame::XFrame> +FrameContainer::searchOnDirectChildrens(std::u16string_view sName) const +{ + SolarMutexGuard g; + css::uno::Reference<css::frame::XFrame> xSearchedFrame; + for (auto const& container : m_aContainer) + { + if (container->getName() == sName) + { + xSearchedFrame = container; + break; + } + } + return xSearchedFrame; +} + +} // namespace framework + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |