/* -*- 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 "helpinterceptor.hxx"
#include "helpdispatch.hxx"
#include "newhelp.hxx"
#include <sfx2/sfxuno.hxx>
#include <tools/urlobj.hxx>
#include <tools/debug.hxx>
#include <com/sun/star/beans/PropertyValue.hpp>
#include <cppuhelper/interfacecontainer.h>
#include <vcl/window.hxx>
#include <limits.h>
using namespace ::com::sun::star::beans;
using namespace ::com::sun::star::frame;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::util;
using namespace ::com::sun::star::lang;
HelpInterceptor_Impl::HelpInterceptor_Impl() :
m_pWindow ( nullptr ),
m_nCurPos ( 0 )
{
}
HelpInterceptor_Impl::~HelpInterceptor_Impl()
{
}
void HelpInterceptor_Impl::addURL( const OUString& rURL )
{
if ( !m_pHistory )
m_pHistory.reset( new std::vector<std::unique_ptr<HelpHistoryEntry_Impl>> );
size_t nCount = m_pHistory->size();
if ( nCount && m_nCurPos < ( nCount - 1 ) )
{
for ( size_t i = nCount - 1; i > m_nCurPos; i-- )
{
m_pHistory->erase( m_pHistory->begin() + i );
}
}
Reference<XFrame> xFrame(m_xIntercepted, UNO_QUERY);
Reference<XController> xController;
if(xFrame.is())
xController = xFrame->getController();
if(xController.is() && !m_pHistory->empty())
{
m_pHistory->at( m_nCurPos )->aViewData = xController->getViewData();
}
m_aCurrentURL = rURL;
Any aEmptyViewData;
m_pHistory->emplace_back( new HelpHistoryEntry_Impl( rURL, aEmptyViewData ) );
m_nCurPos = m_pHistory->size() - 1;
// TODO ?
if ( m_xListener.is() )
{
css::frame::FeatureStateEvent aEvent;
URL aURL;
aURL.Complete = rURL;
aEvent.FeatureURL = aURL;
aEvent.Source = static_cast<css::frame::XDispatch*>(this);
m_xListener->statusChanged( aEvent );
}
m_pWindow->UpdateToolbox();
}
void HelpInterceptor_Impl::setInterception( const Reference< XFrame >& xFrame )
{
m_xIntercepted.set( xFrame, UNO_QUERY );
if ( m_xIntercepted.is() )
m_xIntercepted->registerDispatchProviderInterceptor( static_cast<XDispatchProviderInterceptor*>(this) );
}
bool HelpInterceptor_Impl::HasHistoryPred() const
{
return m_pHistory && ( m_nCurPos > 0 );
}
bool HelpInterceptor_Impl::HasHistorySucc() const
{
return m_pHistory && ( m_nCurPos < ( m_pHistory->size() - 1 ) );
}
// XDispatchProvider
Reference< XDispatch > SAL_CALL HelpInterceptor_Impl::queryDispatch(
const URL& aURL, const OUString& aTargetFrameName, sal_Int32 nSearchFlags )
{
Reference< XDispatch > xResult;
if ( m_xSlaveDispatcher.is() )
xResult = m_xSlaveDispatcher->queryDispatch( aURL, aTargetFrameName, nSearchFlags );
bool bHelpURL = aURL.Complete.toAsciiLowerCase().match("vnd.sun.star.help",0);
if ( bHelpURL )
{
DBG_ASSERT( xResult.is(), "invalid dispatch" );
HelpDispatch_Impl* pHelpDispatch = new HelpDispatch_Impl( *this, xResult );
xResult.set( static_cast< ::cppu::OWeakObject* >(pHelpDispatch), UNO_QUERY );
}
return xResult;
}
Sequence < Reference < XDispatch > > SAL_CALL HelpInterceptor_Impl::queryDispatches(
const Sequence< DispatchDescriptor >& aDescripts )
{
Sequence< Reference< XDispatch > > aReturn( aDescripts.getLength() );
Reference< XDispatch >* pReturn = aReturn.getArray();
const DispatchDescriptor* pDescripts = aDescripts.getConstArray();
for ( sal_Int32 i = 0; i < aDescripts.getLength(); ++i, ++pReturn, ++pDescripts )
{
*pReturn = queryDispatch( pDescripts->FeatureURL, pDescripts->FrameName, pDescripts->SearchFlags );
}
return aReturn;
}
// XDispatchProviderInterceptor
Reference< XDispatchProvider > SAL_CALL HelpInterceptor_Impl::getSlaveDispatchProvider()
{
return m_xSlaveDispatcher;
}
void SAL_CALL HelpInterceptor_Impl::setSlaveDispatchProvider( const Reference< XDispatchProvider >& xNewSlave )
{
m_xSlaveDispatcher = xNewSlave;
}
Reference< XDispatchProvider > SAL_CALL HelpInterceptor_Impl::getMasterDispatchProvider()
{
return m_xMasterDispatcher;
}
void SAL_CALL HelpInterceptor_Impl::setMasterDispatchProvider( const Reference< XDispatchProvider >& xNewMaster )
{
m_xMasterDispatcher = xNewMaster;
}
// XInterceptorInfo
Sequence< OUString > SAL_CALL HelpInterceptor_Impl::getInterceptedURLs()
{
Sequence<OUString> aURLList { "vnd.sun.star.help://*" };
return aURLList;
}
// XDispatch
void SAL_CALL HelpInterceptor_Impl::dispatch(
const URL& aURL, const Sequence< css::beans::PropertyValue >& )
{
bool bBack = aURL.Complete == ".uno:Backward";
if ( bBack || aURL.Complete == ".uno:Forward" )
{
if ( m_pHistory )
{
if(m_pHistory->size() > m_nCurPos)
{
Reference<XFrame> xFrame(m_xIntercepted, UNO_QUERY);
Reference<XController> xController;
if(xFrame.is())
xController = xFrame->getController();
if(xController.is())
{
m_pHistory->at( m_nCurPos )->aViewData = xController->getViewData();
}
}
sal_uIntPtr nPos = ( bBack && m_nCurPos > 0 ) ? --m_nCurPos
: ( !bBack && m_nCurPos < m_pHistory->size() - 1 )
? ++m_nCurPos
: ULONG_MAX;
if ( nPos < ULONG_MAX )
{
HelpHistoryEntry_Impl* pEntry = m_pHistory->at( nPos ).get();
m_pWindow->loadHelpContent(pEntry->aURL, false); // false => don't add item to history again!
}
m_pWindow->UpdateToolbox();
}
}
}
void SAL_CALL HelpInterceptor_Impl::addStatusListener(
const Reference< XStatusListener >& xControl, const URL& )
{
DBG_ASSERT( !m_xListener.is(), "listener already exists" );
m_xListener = xControl;
}
void SAL_CALL HelpInterceptor_Impl::removeStatusListener(
const Reference< XStatusListener >&, const URL&)
{
m_xListener = nullptr;
}
// HelpListener_Impl -----------------------------------------------------
HelpListener_Impl::HelpListener_Impl( HelpInterceptor_Impl* pInter )
{
pInterceptor = pInter;
pInterceptor->addStatusListener( this, css::util::URL() );
}
void SAL_CALL HelpListener_Impl::statusChanged( const css::frame::FeatureStateEvent& Event )
{
INetURLObject aObj( Event.FeatureURL.Complete );
aFactory = aObj.GetHost();
aChangeLink.Call( *this );
}
void SAL_CALL HelpListener_Impl::disposing( const css::lang::EventObject& )
{
pInterceptor->removeStatusListener( this, css::util::URL() );
pInterceptor = nullptr;
}
HelpStatusListener_Impl::HelpStatusListener_Impl(
Reference < XDispatch > const & aDispatch, URL const & rURL)
{
aDispatch->addStatusListener(this, rURL);
}
HelpStatusListener_Impl::~HelpStatusListener_Impl()
{
if(xDispatch.is())
xDispatch->removeStatusListener(this, css::util::URL());
}
void HelpStatusListener_Impl::statusChanged(
const FeatureStateEvent& rEvent )
{
aStateEvent = rEvent;
}
void HelpStatusListener_Impl::disposing( const EventObject& )
{
xDispatch->removeStatusListener(this, css::util::URL());
xDispatch = nullptr;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
↑ V1023 A pointer without owner is added to the 'm_pHistory' container by the 'emplace_back' method. A memory leak will occur in case of an exception.