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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 <ucbhelper/interceptedinteraction.hxx>
#include <osl/diagnose.h>
namespace ucbhelper{
InterceptedInteraction::InterceptedInteraction()
{
}
void InterceptedInteraction::setInterceptedHandler(const css::uno::Reference< css::task::XInteractionHandler >& xInterceptedHandler)
{
m_xInterceptedHandler = xInterceptedHandler;
}
void InterceptedInteraction::setInterceptions(::std::vector< InterceptedRequest >&& lInterceptions)
{
m_lInterceptions = std::move(lInterceptions);
}
InterceptedInteraction::EInterceptionState InterceptedInteraction::intercepted(
const InterceptedRequest&,
const css::uno::Reference< css::task::XInteractionRequest >&)
{
// default behaviour! see impl_interceptRequest() for further information ...
return E_NOT_INTERCEPTED;
}
css::uno::Reference< css::task::XInteractionContinuation > InterceptedInteraction::extractContinuation(const css::uno::Sequence< css::uno::Reference< css::task::XInteractionContinuation > >& lContinuations,
const css::uno::Type& aType )
{
const css::uno::Reference< css::task::XInteractionContinuation >* pContinuations = std::find_if(lContinuations.begin(), lContinuations.end(),
[&aType](const css::uno::Reference< css::task::XInteractionContinuation >& rContinuation) {
css::uno::Reference< css::uno::XInterface > xCheck(rContinuation, css::uno::UNO_QUERY);
return xCheck->queryInterface(aType).hasValue();
});
if (pContinuations != lContinuations.end())
return *pContinuations;
return css::uno::Reference< css::task::XInteractionContinuation >();
}
void SAL_CALL InterceptedInteraction::handle(const css::uno::Reference< css::task::XInteractionRequest >& xRequest)
{
impl_handleDefault(xRequest);
}
void InterceptedInteraction::impl_handleDefault(const css::uno::Reference< css::task::XInteractionRequest >& xRequest)
{
EInterceptionState eState = impl_interceptRequest(xRequest);
switch(eState)
{
case E_NOT_INTERCEPTED:
{
// Non of the intercepted requests match to the given one.
// => forward request to the internal wrapped handler - if there is one.
if (m_xInterceptedHandler.is())
m_xInterceptedHandler->handle(xRequest);
}
break;
case E_NO_CONTINUATION_FOUND:
{
// Runtime error! The defined continuation could not be located
// inside the set of available continuations of the incoming request.
// What's wrong - the interception list or the request?
OSL_FAIL("InterceptedInteraction::handle()\nCould intercept this interaction request - but can't locate the right continuation!");
}
break;
case E_INTERCEPTED:
break;
}
}
InterceptedInteraction::EInterceptionState InterceptedInteraction::impl_interceptRequest(const css::uno::Reference< css::task::XInteractionRequest >& xRequest)
{
css::uno::Any aRequest = xRequest->getRequest();
const css::uno::Type& aRequestType = aRequest.getValueType();
css::uno::Sequence< css::uno::Reference< css::task::XInteractionContinuation > > lContinuations = xRequest->getContinuations();
// check against the list of static requests
auto pIt = std::find_if(m_lInterceptions.begin(), m_lInterceptions.end(),
[&aRequestType](const InterceptedRequest& rInterception) {
// check the request
// don't change intercepted and request type here -> it will check the wrong direction!
return rInterception.Request.getValueType().isAssignableFrom(aRequestType);
});
if (pIt != m_lInterceptions.end()) // intercepted ...
{
const InterceptedRequest& rInterception = *pIt;
// Call they might existing derived class, so they can handle that by its own.
// If it's not interested on that (maybe it's not overwritten and the default implementation
// returns E_NOT_INTERCEPTED as default) -> search required continuation
EInterceptionState eState = intercepted(rInterception, xRequest);
if (eState != E_NOT_INTERCEPTED)
return eState;
css::uno::Reference< css::task::XInteractionContinuation > xContinuation = InterceptedInteraction::extractContinuation(lContinuations, rInterception.Continuation);
if (xContinuation.is())
{
xContinuation->select();
return E_INTERCEPTED;
}
// Can be reached only, if the request does not support the given continuation!
// => RuntimeError!?
return E_NO_CONTINUATION_FOUND;
}
return E_NOT_INTERCEPTED;
}
} // namespace ucbhelper
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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