1/*
2 * Copyright (C) 2018 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "RenderTreeBuilderContinuation.h"
28
29#include "RenderBoxModelObject.h"
30
31namespace WebCore {
32
33RenderTreeBuilder::Continuation::Continuation(RenderTreeBuilder& builder)
34 : m_builder(builder)
35{
36}
37
38void RenderTreeBuilder::Continuation::cleanupOnDestroy(RenderBoxModelObject& renderer)
39{
40 if (!renderer.continuation() || renderer.isContinuation()) {
41 if (renderer.hasContinuationChainNode())
42 renderer.removeFromContinuationChain();
43 return;
44 }
45
46 ASSERT(renderer.hasContinuationChainNode());
47 ASSERT(renderer.continuationChainNode());
48 auto& continuationChainNode = *renderer.continuationChainNode();
49 while (continuationChainNode.next)
50 m_builder.destroy(*continuationChainNode.next->renderer);
51 renderer.removeFromContinuationChain();
52}
53
54}
55