1/*
2 * Copyright (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
3 * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB. If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
19 *
20 */
21
22#pragma once
23
24#include "CounterContent.h"
25#include "RenderText.h"
26
27namespace WebCore {
28
29class CounterNode;
30
31class RenderCounter final : public RenderText {
32 WTF_MAKE_ISO_ALLOCATED(RenderCounter);
33public:
34 RenderCounter(Document&, const CounterContent&);
35 virtual ~RenderCounter();
36
37 static void destroyCounterNodes(RenderElement&);
38 static void destroyCounterNode(RenderElement&, const AtomicString& identifier);
39 static void rendererSubtreeAttached(RenderElement&);
40 static void rendererRemovedFromTree(RenderElement&);
41 static void rendererStyleChanged(RenderElement&, const RenderStyle* oldStyle, const RenderStyle* newStyle);
42
43 void updateCounter();
44
45private:
46 void willBeDestroyed() override;
47
48 const char* renderName() const override;
49 bool isCounter() const override;
50 String originalText() const override;
51
52 void computePreferredLogicalWidths(float leadWidth) override;
53
54 CounterContent m_counter;
55 CounterNode* m_counterNode { nullptr };
56 RenderCounter* m_nextForSameCounter { nullptr };
57 friend class CounterNode;
58};
59
60} // namespace WebCore
61
62SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderCounter, isCounter())
63
64#if ENABLE(TREE_DEBUGGING)
65// Outside the WebCore namespace for ease of invocation from the debugger.
66void showCounterRendererTree(const WebCore::RenderObject*, const char* counterName = nullptr);
67#endif
68