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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 <delayevent.hxx>
+#include <eventqueue.hxx>
+#include <usereventqueue.hxx>
+#include "sequentialtimecontainer.hxx"
+
+namespace slideshow::internal {
+
+void SequentialTimeContainer::activate_st()
+{
+ // resolve first possible child, ignore
+ for ( ; mnFinishedChildren < maChildren.size(); ++mnFinishedChildren ) {
+ if (resolveChild( maChildren[mnFinishedChildren] ))
+ break;
+ else {
+ // node still UNRESOLVED, no need to deactivate or end...
+ OSL_FAIL( "### resolving child failed!" );
+ }
+ }
+
+ if (isDurationIndefinite() &&
+ (maChildren.empty() || mnFinishedChildren >= maChildren.size()))
+ {
+ // deactivate ASAP:
+ auto self(getSelf());
+ scheduleDeactivationEvent(
+ makeEvent( [self] () { self->deactivate(); },
+ "SequentialTimeContainer::deactivate") );
+ }
+ else // use default
+ scheduleDeactivationEvent();
+}
+
+void SequentialTimeContainer::dispose()
+{
+ BaseContainerNode::dispose();
+ if (mpCurrentSkipEvent) {
+ mpCurrentSkipEvent->dispose();
+ mpCurrentSkipEvent.reset();
+ }
+}
+
+void SequentialTimeContainer::skipEffect(
+ AnimationNodeSharedPtr const& pChildNode )
+{
+ if (isChildNode(pChildNode)) {
+ // empty all events ignoring timings => until next effect
+ getContext().mrEventQueue.forceEmpty();
+ getContext().mrEventQueue.addEvent(
+ makeEvent( [pChildNode] () { pChildNode->deactivate(); },
+ "SequentialTimeContainer::deactivate, skipEffect with delay") );
+ }
+ else
+ OSL_FAIL( "unknown notifier!" );
+}
+
+bool SequentialTimeContainer::resolveChild(
+ AnimationNodeSharedPtr const& pChildNode )
+{
+ bool const bResolved = pChildNode->resolve();
+ if (bResolved && isMainSequenceRootNode()) {
+ // discharge events:
+ if (mpCurrentSkipEvent)
+ mpCurrentSkipEvent->dispose();
+
+ // event that will deactivate the resolved/running child:
+ mpCurrentSkipEvent = makeEvent(
+ std::bind( &SequentialTimeContainer::skipEffect,
+ std::dynamic_pointer_cast<SequentialTimeContainer>( getSelf() ),
+ pChildNode ),
+ "SequentialTimeContainer::skipEffect, resolveChild");
+
+ // deactivate child node when skip event occurs:
+ getContext().mrUserEventQueue.registerSkipEffectEvent(
+ mpCurrentSkipEvent,
+ mnFinishedChildren+1<maChildren.size());
+ }
+ return bResolved;
+}
+
+void SequentialTimeContainer::notifyDeactivating(
+ AnimationNodeSharedPtr const& rNotifier )
+{
+ if (notifyDeactivatedChild( rNotifier ))
+ return;
+
+ OSL_ASSERT( mnFinishedChildren < maChildren.size() );
+ AnimationNodeSharedPtr const& pNextChild = maChildren[mnFinishedChildren];
+ OSL_ASSERT( pNextChild->getState() == UNRESOLVED );
+
+ if (! resolveChild( pNextChild )) {
+ // could not resolve child - since we risk to
+ // stall the chain of events here, play it safe
+ // and deactivate this node (only if we have
+ // indefinite duration - otherwise, we'll get a
+ // deactivation event, anyways).
+ deactivate();
+ }
+}
+
+} // namespace slideshow::internal
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */