Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 138 insertions, 0 deletions

diff --git a/ucbhelper/source/client/interceptedinteraction.cxx b/ucbhelper/source/client/interceptedinteraction.cxx
new file mode 100644
index 000000000..96b3fd32c
--- /dev/null
+++ b/ucbhelper/source/client/interceptedinteraction.cxx
@@ -0,0 +1,138 @@
+/* -*- 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: */