1/*
2 * Copyright (C) 2013 Google 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 are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#ifndef HTMLDimension_h
32#define HTMLDimension_h
33
34#include "wtf/Forward.h"
35#include "wtf/Vector.h"
36
37namespace blink {
38
39// This class corresponds to a dimension as described in HTML5 by the
40// "rules for parsing a list of dimensions" (section 2.4.4.6).
41class HTMLDimension {
42public:
43    enum HTMLDimensionType {
44        Relative, Percentage, Absolute
45    };
46
47    HTMLDimension()
48        : m_type(Absolute)
49        , m_value(0)
50    {
51    }
52
53    HTMLDimension(double value, HTMLDimensionType type)
54        : m_type(type)
55        , m_value(value)
56    {
57    }
58
59    HTMLDimensionType type() const { return m_type; }
60
61    bool isRelative() const { return m_type == Relative; }
62    bool isPercentage() const { return m_type == Percentage; }
63    bool isAbsolute() const { return m_type == Absolute; }
64
65    double value() const { return m_value; }
66
67    bool operator==(const HTMLDimension& other) const
68    {
69        return m_type == other.m_type && m_value == other.m_value;
70    }
71    bool operator!=(const HTMLDimension& other) const { return !(*this == other); }
72
73private:
74    HTMLDimensionType m_type;
75    double m_value;
76};
77
78Vector<HTMLDimension> parseListOfDimensions(const String&);
79
80} // namespace blink
81
82#endif // HTMLDimension_h
83