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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 .
*/
#include <tools/SlotStateListener.hxx>
#include <com/sun/star/frame/XDispatchProvider.hpp>
#include <com/sun/star/frame/XDispatch.hpp>
#include <com/sun/star/util/URLTransformer.hpp>
#include <com/sun/star/util/XURLTransformer.hpp>
#include <com/sun/star/beans/PropertyChangeEvent.hpp>
#include <comphelper/processfactory.hxx>
using namespace ::com::sun::star;
namespace sd { namespace tools {
SlotStateListener::SlotStateListener (
Link<const OUString&,void> const & rCallback,
const uno::Reference<frame::XDispatchProvider>& rxDispatchProvider,
const OUString& rSlotName)
: SlotStateListenerInterfaceBase(maMutex),
maCallback(),
mxDispatchProviderWeak(nullptr)
{
SetCallback(rCallback);
ConnectToDispatchProvider(rxDispatchProvider);
ObserveSlot(rSlotName);
}
SlotStateListener::~SlotStateListener()
{
ReleaseListeners();
}
void SlotStateListener::SetCallback (const Link<const OUString&,void>& rCallback)
{
ThrowIfDisposed();
maCallback = rCallback;
}
void SlotStateListener::ConnectToDispatchProvider (
const uno::Reference<frame::XDispatchProvider>& rxDispatchProvider)
{
ThrowIfDisposed();
// When we are listening to state changes of slots of another frame then
// release these listeners first.
if ( ! maRegisteredURLList.empty())
ReleaseListeners();
mxDispatchProviderWeak = rxDispatchProvider;
}
void SlotStateListener::ObserveSlot (const OUString& rSlotName)
{
ThrowIfDisposed();
if (maCallback.IsSet())
{
// Connect the state change listener.
util::URL aURL (MakeURL(rSlotName));
uno::Reference<frame::XDispatch> xDispatch (GetDispatch(aURL));
if (xDispatch.is())
{
maRegisteredURLList.push_back(aURL);
xDispatch->addStatusListener(this,aURL);
}
}
}
void SlotStateListener::disposing()
{
ReleaseListeners();
mxDispatchProviderWeak = uno::WeakReference<frame::XDispatchProvider>(nullptr);
maCallback = Link<const OUString&,void>();
}
util::URL SlotStateListener::MakeURL (const OUString& rSlotName)
{
util::URL aURL;
aURL.Complete = rSlotName;
uno::Reference<util::XURLTransformer> xTransformer(util::URLTransformer::create(::comphelper::getProcessComponentContext()));
xTransformer->parseStrict(aURL);
return aURL;
}
uno::Reference<frame::XDispatch>
SlotStateListener::GetDispatch (const util::URL& rURL) const
{
uno::Reference<frame::XDispatch> xDispatch;
uno::Reference<frame::XDispatchProvider> xDispatchProvider (mxDispatchProviderWeak);
if (xDispatchProvider.is())
xDispatch = xDispatchProvider->queryDispatch(rURL, OUString(), 0);
return xDispatch;
}
void SlotStateListener::statusChanged (
const frame::FeatureStateEvent& rState)
{
ThrowIfDisposed();
OUString sSlotName (rState.FeatureURL.Complete);
maCallback.Call(sSlotName);
}
void SlotStateListener::ReleaseListeners()
{
if ( ! maRegisteredURLList.empty())
{
RegisteredURLList::iterator iURL (maRegisteredURLList.begin());
RegisteredURLList::iterator iEnd (maRegisteredURLList.end());
for (; iURL!=iEnd; ++iURL)
{
uno::Reference<frame::XDispatch> xDispatch (GetDispatch(*iURL));
if (xDispatch.is())
{
xDispatch->removeStatusListener(this,*iURL);
}
}
}
}
//===== lang::XEventListener ================================================
void SAL_CALL SlotStateListener::disposing (
const lang::EventObject& )
{
}
void SlotStateListener::ThrowIfDisposed()
{
if (rBHelper.bDisposed || rBHelper.bInDispose)
{
throw lang::DisposedException ("SlideSorterController object has already been disposed",
static_cast<uno::XWeak*>(this));
}
}
} } // end of namespace ::sd::tools
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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