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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/.
*/
#ifndef INCLUDED_VCL_VCLSTATUSLISTENER_HXX
#define INCLUDED_VCL_VCLSTATUSLISTENER_HXX
#include <cppuhelper/implbase.hxx>
#include <comphelper/processfactory.hxx>
#include <vcl/vclptr.hxx>
#include <com/sun/star/frame/Desktop.hpp>
#include <com/sun/star/frame/XStatusListener.hpp>
#include <com/sun/star/frame/XDispatch.hpp>
#include <com/sun/star/frame/XDispatchProvider.hpp>
#include <com/sun/star/util/URL.hpp>
#include <com/sun/star/util/URLTransformer.hpp>
template <class T> class VclStatusListener : public cppu::WeakImplHelper < css::frame::XStatusListener>
{
public:
VclStatusListener<T>(T* widget, const OUString& aCommand);
private:
VclPtr<T> mWidget; /** The widget on which actions are performed */
/** Dispatcher. Need to keep a reference to it as long as this StatusListener exists. */
css::uno::Reference<css::frame::XDispatch> mxDispatch;
css::util::URL maCommandURL;
css::uno::Reference<css::frame::XFrame> mxFrame;
public:
void SAL_CALL statusChanged(const css::frame::FeatureStateEvent& rEvent) override;
void SAL_CALL disposing(const css::lang::EventObject& /*Source*/) override;
const css::uno::Reference<css::frame::XFrame>& getFrame() { return mxFrame; }
void startListening();
void dispose();
};
template<class T>
VclStatusListener<T>::VclStatusListener(T* widget, const OUString& aCommand) {
mWidget = widget;
css::uno::Reference<css::uno::XComponentContext> xContext = ::comphelper::getProcessComponentContext();
css::uno::Reference<css::frame::XDesktop2> xDesktop = css::frame::Desktop::create(xContext);
css::uno::Reference<css::frame::XFrame> xFrame(xDesktop->getActiveFrame());
if (!xFrame.is())
xFrame = css::uno::Reference<css::frame::XFrame>(xDesktop, css::uno::UNO_QUERY);
mxFrame = xFrame;
maCommandURL.Complete = aCommand;
css::uno::Reference<css::util::XURLTransformer> xParser = css::util::URLTransformer::create(xContext);
xParser->parseStrict(maCommandURL);
}
template<class T>
void VclStatusListener<T>::startListening()
{
if (mxDispatch.is())
mxDispatch->removeStatusListener(this, maCommandURL);
css::uno::Reference<css::frame::XDispatchProvider> xDispatchProvider(mxFrame, css::uno::UNO_QUERY);
if (!xDispatchProvider.is())
return;
mxDispatch = xDispatchProvider->queryDispatch(maCommandURL, "", 0);
if (mxDispatch.is())
mxDispatch->addStatusListener(this, maCommandURL);
}
template<class T>
void VclStatusListener<T>::statusChanged(const css::frame::FeatureStateEvent& rEvent)
{
mWidget->statusChanged(rEvent);
}
template<class T>
void VclStatusListener<T>::disposing(const css::lang::EventObject& /*Source*/)
{
mxDispatch.clear();
}
template<class T>
void VclStatusListener<T>::dispose()
{
if (mxDispatch.is()) {
mxDispatch->removeStatusListener(this, maCommandURL);
mxDispatch.clear();
}
mxFrame.clear();
mWidget.clear();
}
#endif // INCLUDED_VCL_VCLSTATUSLISTENER_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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