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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 <basecontainernode.hxx>
+#include <com/sun/star/animations/AnimationRestart.hpp>
+#include <com/sun/star/animations/AnimationFill.hpp>
+#include <eventqueue.hxx>
+#include "nodetools.hxx"
+#include <delayevent.hxx>
+#include <o3tl/safeint.hxx>
+#include <sal/log.hxx>
+
+#include <functional>
+#include <algorithm>
+
+using namespace com::sun::star;
+
+namespace slideshow::internal {
+namespace {
+bool isRepeatIndefinite(const uno::Reference<animations::XAnimationNode>& xNode)
+{
+ return xNode->getRepeatCount().hasValue() && isIndefiniteTiming(xNode->getRepeatCount());
+}
+
+bool isRestart(const uno::Reference<animations::XAnimationNode>& xNode)
+{
+ sal_Int16 nRestart = xNode->getRestart();
+ return nRestart == animations::AnimationRestart::WHEN_NOT_ACTIVE ||
+ nRestart == animations::AnimationRestart::ALWAYS;
+}
+}
+
+BaseContainerNode::BaseContainerNode(
+ const uno::Reference< animations::XAnimationNode >& xNode,
+ const BaseContainerNodeSharedPtr& rParent,
+ const NodeContext& rContext )
+ : BaseNode( xNode, rParent, rContext ),
+ maChildren(),
+ mnFinishedChildren(0),
+ mnLeftIterations(0),
+ mbRepeatIndefinite(isRepeatIndefinite(xNode)),
+ mbRestart(isRestart(xNode)),
+ mbDurationIndefinite( isIndefiniteTiming( xNode->getEnd() ) &&
+ isIndefiniteTiming( xNode->getDuration() ) )
+{
+}
+
+void BaseContainerNode::dispose()
+{
+ forEachChildNode( std::mem_fn(&Disposable::dispose), -1 );
+ maChildren.clear();
+ BaseNode::dispose();
+}
+
+bool BaseContainerNode::init_st()
+{
+ if( !(getXAnimationNode()->getRepeatCount() >>= mnLeftIterations) )
+ mnLeftIterations = 1.0;
+ return init_children();
+}
+
+bool BaseContainerNode::init_children()
+{
+ mnFinishedChildren = 0;
+
+ // initialize all children
+ return (o3tl::make_unsigned(std::count_if(
+ maChildren.begin(), maChildren.end(),
+ std::mem_fn(&AnimationNode::init) )) ==
+ maChildren.size());
+}
+
+void BaseContainerNode::deactivate_st( NodeState eDestState )
+{
+ mnLeftIterations = 0; // in order to make skip effect work correctly
+ if (eDestState == FROZEN) {
+ // deactivate all children that are not FROZEN or ENDED:
+ forEachChildNode( std::mem_fn(&AnimationNode::deactivate),
+ ~(FROZEN | ENDED) );
+ }
+ else {
+ // end all children that are not ENDED:
+ forEachChildNode( std::mem_fn(&AnimationNode::end), ~ENDED );
+ }
+}
+
+bool BaseContainerNode::hasPendingAnimation() const
+{
+ // does any of our children returns "true" on
+ // AnimationNode::hasPendingAnimation()?
+ // If yes, we, too, return true
+ return std::any_of(
+ maChildren.begin(), maChildren.end(),
+ std::mem_fn(&AnimationNode::hasPendingAnimation) );
+}
+
+void BaseContainerNode::appendChildNode( AnimationNodeSharedPtr const& pNode )
+{
+ if (! checkValidNode())
+ return;
+
+ // register derived classes as end listeners at all children.
+ // this is necessary to control the children animation
+ // sequence, and to determine our own end event
+ if (pNode->registerDeactivatingListener( getSelf() )) {
+ maChildren.push_back( pNode );
+ }
+}
+
+bool BaseContainerNode::isChildNode( AnimationNodeSharedPtr const& pNode ) const
+{
+ // find given notifier in child vector
+ VectorOfNodes::const_iterator const iEnd( maChildren.end() );
+ VectorOfNodes::const_iterator const iFind(
+ std::find( maChildren.begin(), iEnd, pNode ) );
+ return (iFind != iEnd);
+}
+
+bool BaseContainerNode::notifyDeactivatedChild(
+ AnimationNodeSharedPtr const& pChildNode )
+{
+ OSL_ASSERT( pChildNode->getState() == FROZEN ||
+ pChildNode->getState() == ENDED );
+ // early exit on invalid nodes
+ OSL_ASSERT( getState() != INVALID );
+ if( getState() == INVALID )
+ return false;
+
+ if (! isChildNode(pChildNode)) {
+ OSL_FAIL( "unknown notifier!" );
+ return false;
+ }
+
+ std::size_t const nSize = maChildren.size();
+ OSL_ASSERT( mnFinishedChildren < nSize );
+ ++mnFinishedChildren;
+ bool bFinished = (mnFinishedChildren >= nSize);
+
+ // Handle repetition here.
+ if (bFinished) {
+ if(!mbRepeatIndefinite && mnLeftIterations >= 1.0)
+ {
+ mnLeftIterations -= 1.0;
+ }
+ if(mnLeftIterations >= 1.0 || mbRestart)
+ {
+ // SMIL spec said that "Accumulate" controls whether or not the animation
+ // is cumulative, but XTimeContainer do not have this attribute, so always
+ // remove the effect before next repeat.
+ forEachChildNode(std::mem_fn(&AnimationNode::removeEffect), -1);
+
+ if (mnLeftIterations >= 1.0)
+ bFinished = false;
+
+ EventSharedPtr aRepetitionEvent =
+ makeDelay( [this] () { this->repeat(); },
+ 0.0,
+ "BaseContainerNode::repeat");
+ getContext().mrEventQueue.addEvent( aRepetitionEvent );
+ }
+ else if (isDurationIndefinite())
+ {
+ if (getFillMode() == animations::AnimationFill::REMOVE)
+ forEachChildNode(std::mem_fn(&AnimationNode::removeEffect), -1);
+ deactivate();
+ }
+ }
+
+ return bFinished;
+}
+
+void BaseContainerNode::repeat()
+{
+ // Prevent repeat event scheduled before deactivation.
+ if (getState() == FROZEN || getState() == ENDED)
+ return;
+
+ forEachChildNode( std::mem_fn(&AnimationNode::end), ~ENDED );
+ bool bState = init_children();
+ if( bState )
+ activate_st();
+}
+
+#if defined(DBG_UTIL)
+void BaseContainerNode::showState() const
+{
+ for(const auto & i : maChildren)
+ {
+ BaseNodeSharedPtr pNode =
+ std::dynamic_pointer_cast<BaseNode>(i);
+ SAL_INFO("slideshow.verbose",
+ "Node connection: n" <<
+ debugGetNodeName(this) <<
+ " -> n" <<
+ debugGetNodeName(pNode.get()));
+ pNode->showState();
+ }
+
+ BaseNode::showState();
+}
+#endif
+
+} // namespace slideshow::internal
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */