1/*
2 * Copyright (C) 2005 Apple Inc.
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB. If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 *
19 */
20
21#pragma once
22
23#include "RenderFlexibleBox.h"
24#include <memory>
25
26namespace WebCore {
27
28class HTMLFormControlElement;
29class RenderTextFragment;
30
31// RenderButtons are just like normal flexboxes except that they will generate an anonymous block child.
32// For inputs, they will also generate an anonymous RenderText and keep its style and content up
33// to date as the button changes.
34class RenderButton final : public RenderFlexibleBox {
35 WTF_MAKE_ISO_ALLOCATED(RenderButton);
36public:
37 RenderButton(HTMLFormControlElement&, RenderStyle&&);
38 virtual ~RenderButton();
39
40 HTMLFormControlElement& formControlElement() const;
41
42 bool canBeSelectionLeaf() const override;
43
44 bool createsAnonymousWrapper() const override { return true; }
45
46 void updateFromElement() override;
47
48 bool canHaveGeneratedChildren() const override;
49 bool hasControlClip() const override { return true; }
50 LayoutRect controlClipRect(const LayoutPoint&) const override;
51
52 void updateAnonymousChildStyle(RenderStyle&) const override;
53
54 void setText(const String&);
55 String text() const;
56
57#if PLATFORM(IOS_FAMILY)
58 void layout() override;
59#endif
60
61 RenderBlock* innerRenderer() const { return m_inner.get(); }
62 void setInnerRenderer(RenderBlock&);
63
64 int baselinePosition(FontBaseline, bool firstLine, LineDirectionMode, LinePositionMode = PositionOnContainingLine) const override;
65
66private:
67 void element() const = delete;
68
69 const char* renderName() const override { return "RenderButton"; }
70 bool isRenderButton() const override { return true; }
71
72 bool hasLineIfEmpty() const override;
73
74 bool isFlexibleBoxImpl() const override { return true; }
75
76 WeakPtr<RenderTextFragment> m_buttonText;
77 WeakPtr<RenderBlock> m_inner;
78};
79
80} // namespace WebCore
81
82SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderButton, isRenderButton())
83