/* -*- 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 .
*/
// a) first search an interceptor, which match to this URL by its URL pattern registration // Note: if it return NULL - it does not mean an empty interceptor list automatically!
InterceptorList::const_iterator pIt = m_lInterceptionRegs.findByPattern(aURL.Complete); if (pIt != m_lInterceptionRegs.end())
xInterceptor = pIt->xInterceptor;
// b) No match by registration - but a valid interceptor list. // Find first interceptor w/o pattern, so we need to query it if (!xInterceptor.is())
{ for (autoconst& lInterceptionReg : m_lInterceptionRegs)
{ if (!lInterceptionReg.lURLPattern.hasElements())
{ // no pattern -> need to ask this guy!
xInterceptor = lInterceptionReg.xInterceptor; break;
}
} // if we didn't find any non-pattern interceptor, there's no-one // registered for this command url (we already searched for matching // patterns above)
} // c) No registered interceptor => use our direct slave. // This helper exist by design and must be valid everytimes ... // But to be more feature proof - we should check that .-) if (!xInterceptor.is() && m_xSlave.is())
xInterceptor = m_xSlave;
} // } SAFE
for (sal_Int32 i=0; i<c; ++i)
pDispatches[i] = queryDispatch(pDescriptor[i].FeatureURL, pDescriptor[i].FrameName, pDescriptor[i].SearchFlags);
return lDispatches;
}
void SAL_CALL InterceptionHelper::registerDispatchProviderInterceptor(const css::uno::Reference< css::frame::XDispatchProviderInterceptor >& xInterceptor)
{ // reject incorrect calls of this interface method
css::uno::Reference< css::frame::XDispatchProvider > xThis(this); if (!xInterceptor.is()) throw css::uno::RuntimeException(u"NULL references not allowed as in parameter"_ustr, xThis);
// Fill a new info structure for new interceptor. // Save his reference and try to get an additional URL/pattern list from him. // If no list exist register these interceptor for all dispatch events with "*"!
InterceptorInfo aInfo;
// a) no interceptor at all - set this instance as master for given interceptor // and set our slave as its slave - and put this interceptor to the list. // Its place there doesn't matter. Because this list is currently empty. if (m_lInterceptionRegs.empty())
{
xInterceptor->setMasterDispatchProvider(xThis );
xInterceptor->setSlaveDispatchProvider (m_xSlave);
m_lInterceptionRegs.push_back(aInfo);
}
// b) OK - there is at least one interceptor already registered. // It's slave and it's master must be valid references ... // because we created it.
// insert it before any other existing interceptor - means at the beginning of our list. else
{
css::uno::Reference< css::frame::XDispatchProvider > xSlaveD = m_lInterceptionRegs.begin()->xInterceptor;
css::uno::Reference< css::frame::XDispatchProviderInterceptor > xSlaveI (xSlaveD , css::uno::UNO_QUERY);
// Don't forget to send a frame action event "context changed". // Any cached dispatch objects must be validated now! if (xOwner.is())
xOwner->contextChanged();
}
void SAL_CALL InterceptionHelper::releaseDispatchProviderInterceptor(const css::uno::Reference< css::frame::XDispatchProviderInterceptor >& xInterceptor)
{ // reject wrong calling of this interface method
css::uno::Reference< css::frame::XDispatchProvider > xThis(this); if (!xInterceptor.is()) throw css::uno::RuntimeException(u"NULL references not allowed as in parameter"_ustr, xThis);
// SAFE {
SolarMutexClearableGuard aWriteLock;
// search this interceptor ... // If it could be located inside cache - // use its slave/master relations to update the interception list; // set empty references for it as new master and slave; // and release it from out cache.
InterceptorList::iterator pIt = m_lInterceptionRegs.findByReference(xInterceptor); if (pIt != m_lInterceptionRegs.end())
{
css::uno::Reference< css::frame::XDispatchProvider > xSlaveD = xInterceptor->getSlaveDispatchProvider();
css::uno::Reference< css::frame::XDispatchProvider > xMasterD = xInterceptor->getMasterDispatchProvider();
css::uno::Reference< css::frame::XDispatchProviderInterceptor > xSlaveI (xSlaveD , css::uno::UNO_QUERY);
css::uno::Reference< css::frame::XDispatchProviderInterceptor > xMasterI (xMasterD , css::uno::UNO_QUERY);
if (xMasterI.is())
xMasterI->setSlaveDispatchProvider(xSlaveD);
if (xSlaveI.is())
{ try
{
xSlaveI->setMasterDispatchProvider(xMasterD);
} catch (const lang::DisposedException&)
{
TOOLS_WARN_EXCEPTION("fwk.dispatch", "InterceptionHelper::releaseDispatchProviderInterceptor: " "xSlaveI is disposed: ");
}
}
// Don't forget to send a frame action event "context changed". // Any cached dispatch objects must be validated now! if (xOwner.is())
xOwner->contextChanged();
}
// check call... we accept such disposing calls only from our owner frame.
css::uno::Reference< css::frame::XFrame > xOwner(m_xOwnerWeak.get(), css::uno::UNO_QUERY); if (aEvent.Source != xOwner) return;
// Because every interceptor hold at least one reference to us ... and we destruct this list // of interception objects ... we should hold ourself alive .-)
css::uno::Reference< css::frame::XDispatchProvider > xThis(static_cast< ::cppu::OWeakObject* >(this), css::uno::UNO_QUERY_THROW);
// We need a full copy of all currently registered interceptor objects. // Otherwise we can't iterate over this vector without the risk, that our iterator will be invalid. // Because this vector will be influenced by every deregistered interceptor.
InterceptionHelper::InterceptorList aCopy = m_lInterceptionRegs;
aReadLock.clear(); // <- SAFE
for (auto & elem : aCopy)
{ if (elem.xInterceptor.is())
{
css::uno::Reference< css::frame::XDispatchProviderInterceptor > xInterceptor(elem.xInterceptor, css::uno::UNO_QUERY_THROW);
releaseDispatchProviderInterceptor(xInterceptor);
elem.xInterceptor.clear();
}
}
aCopy.clear();
#if OSL_DEBUG_LEVEL > 0 // SAFE ->
aReadLock.reset(); if (!m_lInterceptionRegs.empty() )
OSL_FAIL("There are some pending interceptor objects, which seems to be registered during (!) the destruction of a frame.");
aReadLock.clear(); // <- SAFE #endif// ODL_DEBUG_LEVEL>0
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