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, 222 insertions, 0 deletions

diff --git a/slideshow/source/engine/animationnodes/basecontainernode.cxx b/slideshow/source/engine/animationnodes/basecontainernode.cxx
new file mode 100644
index 000000000..709f5392a
--- /dev/null
+++ b/slideshow/source/engine/animationnodes/basecontainernode.cxx
@@ -0,0 +1,222 @@
+/* -*- 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: */