1 files changed, 262 insertions, 0 deletions
diff --git a/sfx2/source/appl/helpinterceptor.cxx b/sfx2/source/appl/helpinterceptor.cxx
new file mode 100644
index 000000000..a9ff76101
--- /dev/null
+++ b/sfx2/source/appl/helpinterceptor.cxx
@@ -0,0 +1,262 @@
+/* -*- 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 <tools/urlobj.hxx>
+#include <tools/debug.hxx>
+
+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 )
+{
+    size_t nCount = m_vHistoryUrls.size();
+    if ( nCount && m_nCurPos < ( nCount - 1 ) )
+    {
+        m_vHistoryUrls.erase(
+            m_vHistoryUrls.begin() + m_nCurPos + 1,
+            m_vHistoryUrls.end());
+    }
+    Reference<XFrame> xFrame(m_xIntercepted, UNO_QUERY);
+    Reference<XController> xController;
+    if(xFrame.is())
+        xController = xFrame->getController();
+
+    m_aCurrentURL = rURL;
+    m_vHistoryUrls.emplace_back( rURL );
+    m_nCurPos = m_vHistoryUrls.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_nCurPos > 0;
+}
+
+bool HelpInterceptor_Impl::HasHistorySucc() const
+{
+    return m_nCurPos < ( m_vHistoryUrls.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" );
+        xResult = new HelpDispatch_Impl( *this, xResult );
+    }
+
+    return xResult;
+}
+
+
+Sequence < Reference < XDispatch > > SAL_CALL HelpInterceptor_Impl::queryDispatches(
+
+    const Sequence< DispatchDescriptor >& aDescripts )
+
+{
+    Sequence< Reference< XDispatch > > aReturn( aDescripts.getLength() );
+    std::transform(aDescripts.begin(), aDescripts.end(), aReturn.getArray(),
+        [this](const DispatchDescriptor& rDescr) -> Reference<XDispatch> {
+            return queryDispatch(rDescr.FeatureURL, rDescr.FrameName, rDescr.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" )
+        return;
+
+    if ( m_vHistoryUrls.empty() )
+        return;
+
+    size_t nPos = ( bBack && m_nCurPos > 0 ) ? --m_nCurPos
+                                            : ( !bBack && m_nCurPos < m_vHistoryUrls.size() - 1 )
+                                            ? ++m_nCurPos
+                                            : std::numeric_limits<std::size_t>::max();
+
+    if ( nPos < std::numeric_limits<std::size_t>::max() )
+    {
+        m_pWindow->loadHelpContent(m_vHistoryUrls[nPos], 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: */