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libreoffice/framework/inc/helper/mischelper.hxx
Daniel Baumann 8e63e14cf6
Adding upstream version 4:25.2.3. 
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
2025-06-22 16:20:04 +02:00

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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 .
*/
#pragma once
#include <com/sun/star/linguistic2/XLanguageGuessing.hpp>
#include <com/sun/star/document/XDocumentEventListener.hpp>
#include <com/sun/star/util/XChangesListener.hpp>
#include <com/sun/star/container/XContainerListener.hpp>
#include <com/sun/star/frame/XFrame.hpp>
#include <com/sun/star/uno/XComponentContext.hpp>
#include <com/sun/star/ui/XContextChangeEventListener.hpp>
#include <cppuhelper/implbase.hxx>
#include <cppuhelper/weakref.hxx>
#include <i18nlangtag/lang.h>
#include <o3tl/string_view.hxx>
#include <svl/languageoptions.hxx>
#include <rtl/ustring.hxx>
#include <functional>
#include <set>
#include <utility>
namespace framework
{
// menu ids for language status bar control
enum LangMenuIDs
{
MID_LANG_SEL_1 = 1, // need to start with 1 since xPopupMenu->execute will return 0 if the menu is cancelled
MID_LANG_SEL_2,
MID_LANG_SEL_3,
MID_LANG_SEL_4,
MID_LANG_SEL_5,
MID_LANG_SEL_6,
MID_LANG_SEL_7,
MID_LANG_SEL_8,
MID_LANG_SEL_9,
MID_LANG_SEL_NONE,
MID_LANG_SEL_RESET,
MID_LANG_SEL_MORE,
MID_LANG_DEF_NONE,
MID_LANG_DEF_RESET,
MID_LANG_DEF_MORE,
MID_LANG_PARA_SEPARATOR,
MID_LANG_PARA_STRING,
MID_LANG_PARA_1,
MID_LANG_PARA_2,
MID_LANG_PARA_3,
MID_LANG_PARA_4,
MID_LANG_PARA_5,
MID_LANG_PARA_6,
MID_LANG_PARA_7,
MID_LANG_PARA_8,
MID_LANG_PARA_9,
MID_LANG_PARA_NONE,
MID_LANG_PARA_RESET,
MID_LANG_PARA_MORE,
};
inline bool IsScriptTypeMatchingToLanguage( SvtScriptType nScriptType, LanguageType nLang )
{
return bool(nScriptType & SvtLanguageOptions::GetScriptTypeOfLanguage( nLang ));
}
inline void RetrieveTypeNameFromResourceURL( std::u16string_view aResourceURL, OUString& aType, OUString& aName )
{
static constexpr std::u16string_view RESOURCEURL_PREFIX = u"private:resource/";
if (o3tl::starts_with(aResourceURL, RESOURCEURL_PREFIX ))
{
size_t nIdx = RESOURCEURL_PREFIX.size();
while (nIdx < aResourceURL.size() && aResourceURL[nIdx]=='/')
++nIdx;
if (nIdx >= aResourceURL.size())
return;
aType = o3tl::getToken(aResourceURL, u'/', nIdx);
if (nIdx == std::u16string_view::npos)
return;
while (nIdx < aResourceURL.size() && aResourceURL[nIdx]=='/')
++nIdx;
if (nIdx >= aResourceURL.size())
return;
aName = o3tl::getToken(aResourceURL, u'/', nIdx);
}
}
class LanguageGuessingHelper
{
mutable css::uno::Reference< css::linguistic2::XLanguageGuessing > m_xLanguageGuesser;
css::uno::Reference< css::uno::XComponentContext > m_xContext;
public:
LanguageGuessingHelper(css::uno::Reference< css::uno::XComponentContext > _xContext) : m_xContext(std::move(_xContext)){}
css::uno::Reference< css::linguistic2::XLanguageGuessing > const & GetGuesser() const;
};
void FillLangItems( std::set< OUString > &rLangItems,
const css::uno::Reference< css::frame::XFrame > &rxFrame,
const LanguageGuessingHelper & rLangGuessHelper,
SvtScriptType nScriptType,
const OUString & rCurLang,
const OUString & rKeyboardLang,
const OUString & rGuessedTextLang );
//It's common for an object to want to create and own a Broadcaster and set
//itself as a Listener on its own Broadcaster member.
//However, calling addListener on a Broadcaster means that the Broadcaster adds
//a reference to the Listener leading to an ownership cycle where the Listener
//owns the Broadcaster which "owns" the Listener.
//The WeakContainerListener allows breaking this cycle and retrofitting
//afflicted implementations fairly easily.
//OriginalListener owns the Broadcaster which "owns" the WeakContainerListener
//which forwards the events to the OriginalListener without taking ownership of
//it.
class WeakContainerListener final : public ::cppu::WeakImplHelper<css::container::XContainerListener>
{
private:
css::uno::WeakReference<css::container::XContainerListener> mxOwner;
public:
WeakContainerListener(css::uno::Reference<css::container::XContainerListener> const & xOwner)
: mxOwner(xOwner)
{
}
// container.XContainerListener
virtual void SAL_CALL elementInserted(const css::container::ContainerEvent& rEvent) override
{
css::uno::Reference<css::container::XContainerListener> xOwner(mxOwner.get(),
css::uno::UNO_QUERY);
if (xOwner.is())
xOwner->elementInserted(rEvent);
}
virtual void SAL_CALL elementRemoved(const css::container::ContainerEvent& rEvent) override
{
css::uno::Reference<css::container::XContainerListener> xOwner(mxOwner.get(),
css::uno::UNO_QUERY);
if (xOwner.is())
xOwner->elementRemoved(rEvent);
}
virtual void SAL_CALL elementReplaced(const css::container::ContainerEvent& rEvent) override
{
css::uno::Reference<css::container::XContainerListener> xOwner(mxOwner.get(),
css::uno::UNO_QUERY);
if (xOwner.is())
xOwner->elementReplaced(rEvent);
}
// lang.XEventListener
virtual void SAL_CALL disposing(const css::lang::EventObject& rEvent) override
{
css::uno::Reference<css::container::XContainerListener> xOwner(mxOwner.get(),
css::uno::UNO_QUERY);
if (xOwner.is())
xOwner->disposing(rEvent);
}
};
class WeakChangesListener final : public ::cppu::WeakImplHelper<css::util::XChangesListener>
{
private:
css::uno::WeakReference<css::util::XChangesListener> mxOwner;
public:
WeakChangesListener(css::uno::Reference<css::util::XChangesListener> const & xOwner)
: mxOwner(xOwner)
{
}
// util.XChangesListener
virtual void SAL_CALL changesOccurred(const css::util::ChangesEvent& rEvent) override
{
css::uno::Reference<css::util::XChangesListener> xOwner(mxOwner.get(),
css::uno::UNO_QUERY);
if (xOwner.is())
xOwner->changesOccurred(rEvent);
}
// lang.XEventListener
virtual void SAL_CALL disposing(const css::lang::EventObject& rEvent) override
{
css::uno::Reference<css::util::XChangesListener> xOwner(mxOwner.get(),
css::uno::UNO_QUERY);
if (xOwner.is())
xOwner->disposing(rEvent);
}
};
class WeakDocumentEventListener final : public ::cppu::WeakImplHelper<css::document::XDocumentEventListener>
{
private:
css::uno::WeakReference<css::document::XDocumentEventListener> mxOwner;
public:
WeakDocumentEventListener(css::uno::Reference<css::document::XDocumentEventListener> const & xOwner)
: mxOwner(xOwner)
{
}
virtual void SAL_CALL documentEventOccured(const css::document::DocumentEvent& rEvent) override
{
css::uno::Reference<css::document::XDocumentEventListener> xOwner(mxOwner.get(),
css::uno::UNO_QUERY);
if (xOwner.is())
xOwner->documentEventOccured(rEvent);
}
// lang.XEventListener
virtual void SAL_CALL disposing(const css::lang::EventObject& rEvent) override
{
css::uno::Reference<css::document::XDocumentEventListener> xOwner(mxOwner.get(),
css::uno::UNO_QUERY);
if (xOwner.is())
xOwner->disposing(rEvent);
}
};
css::uno::Reference<css::ui::XContextChangeEventListener>
GetFirstListenerWith_Impl(
css::uno::Reference<css::uno::XComponentContext> const & xComponentContext,
css::uno::Reference<css::uno::XInterface> const& xEventFocus,
std::function<bool (css::uno::Reference<css::ui::XContextChangeEventListener> const&)> const& rPredicate);
extern auto (*g_pGetMultiplexerListener)(
css::uno::Reference<css::uno::XComponentContext> const & xComponentContext,
css::uno::Reference<css::uno::XInterface> const&,
std::function<bool (css::uno::Reference<css::ui::XContextChangeEventListener> const&)> const&)
-> css::uno::Reference<css::ui::XContextChangeEventListener>;
} // namespace framework
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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