1/*
2 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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#if ENABLE(METER_ELEMENT)
24
25#include "LabelableElement.h"
26
27namespace WebCore {
28
29class MeterValueElement;
30class RenderMeter;
31
32class HTMLMeterElement final : public LabelableElement {
33 WTF_MAKE_ISO_ALLOCATED(HTMLMeterElement);
34public:
35 static Ref<HTMLMeterElement> create(const QualifiedName&, Document&);
36
37 enum GaugeRegion {
38 GaugeRegionOptimum,
39 GaugeRegionSuboptimal,
40 GaugeRegionEvenLessGood
41 };
42
43 double min() const;
44 void setMin(double);
45
46 double max() const;
47 void setMax(double);
48
49 double value() const;
50 void setValue(double);
51
52 double low() const;
53 void setLow(double);
54
55 double high() const;
56 void setHigh(double);
57
58 double optimum() const;
59 void setOptimum(double);
60
61 double valueRatio() const;
62 GaugeRegion gaugeRegion() const;
63
64 bool canContainRangeEndPoint() const final { return false; }
65
66private:
67 HTMLMeterElement(const QualifiedName&, Document&);
68 virtual ~HTMLMeterElement();
69
70 RenderMeter* renderMeter() const;
71
72 bool supportLabels() const final { return true; }
73
74 RenderPtr<RenderElement> createElementRenderer(RenderStyle&&, const RenderTreePosition&) final;
75 bool childShouldCreateRenderer(const Node&) const final;
76 void parseAttribute(const QualifiedName&, const AtomicString&) final;
77
78 void didElementStateChange();
79 void didAddUserAgentShadowRoot(ShadowRoot&) final;
80
81 RefPtr<HTMLElement> m_value;
82};
83
84} // namespace WebCore
85
86#endif // ENABLE(METER_ELEMENT)
87