1/*
2 * Copyright (C) 2014 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#include "config.h"
32#include "core/svg/SVGNumber.h"
33
34#include "core/svg/SVGAnimationElement.h"
35#include "core/svg/SVGParserUtilities.h"
36
37namespace WebCore {
38
39SVGNumber::SVGNumber(float value)
40    : SVGPropertyBase(classType())
41    , m_value(value)
42{
43}
44
45PassRefPtr<SVGNumber> SVGNumber::clone() const
46{
47    return create(m_value);
48}
49
50PassRefPtr<SVGPropertyBase> SVGNumber::cloneForAnimation(const String& value) const
51{
52    RefPtr<SVGNumber> svgNumber = create();
53    svgNumber->setValueAsString(value, IGNORE_EXCEPTION);
54    return svgNumber.release();
55}
56
57String SVGNumber::valueAsString() const
58{
59    return String::number(m_value);
60}
61
62template<typename CharType>
63bool SVGNumber::parse(const CharType*& ptr, const CharType* end)
64{
65    if (!parseNumber(ptr, end, m_value, AllowLeadingAndTrailingWhitespace)) {
66        m_value = 0;
67        return false;
68    }
69
70    if (ptr != end) {
71        m_value = 0;
72        return false;
73    }
74
75    return true;
76}
77
78void SVGNumber::setValueAsString(const String& string, ExceptionState& exceptionState)
79{
80    if (string.isEmpty()) {
81        m_value = 0;
82        return;
83    }
84
85    bool valid = false;
86    if (string.is8Bit()) {
87        const LChar* ptr = string.characters8();
88        const LChar* end = ptr + string.length();
89        valid = parse(ptr, end);
90    } else {
91        const UChar* ptr = string.characters16();
92        const UChar* end = ptr + string.length();
93        valid = parse(ptr, end);
94    }
95
96    if (!valid) {
97        exceptionState.throwDOMException(SyntaxError, "The value provided ('" + string + "') is invalid.");
98        m_value = 0;
99    }
100}
101
102void SVGNumber::add(PassRefPtrWillBeRawPtr<SVGPropertyBase> other, SVGElement*)
103{
104    setValue(m_value + toSVGNumber(other)->value());
105}
106
107void SVGNumber::calculateAnimatedValue(SVGAnimationElement* animationElement, float percentage, unsigned repeatCount, PassRefPtr<SVGPropertyBase> from, PassRefPtr<SVGPropertyBase> to, PassRefPtr<SVGPropertyBase> toAtEndOfDuration, SVGElement*)
108{
109    ASSERT(animationElement);
110
111    RefPtr<SVGNumber> fromNumber = toSVGNumber(from);
112    RefPtr<SVGNumber> toNumber = toSVGNumber(to);
113    RefPtr<SVGNumber> toAtEndOfDurationNumber = toSVGNumber(toAtEndOfDuration);
114
115    animationElement->animateAdditiveNumber(percentage, repeatCount, fromNumber->value(), toNumber->value(), toAtEndOfDurationNumber->value(), m_value);
116}
117
118float SVGNumber::calculateDistance(PassRefPtr<SVGPropertyBase> other, SVGElement*)
119{
120    return fabsf(m_value - toSVGNumber(other)->value());
121}
122
123PassRefPtr<SVGNumber> SVGNumberAcceptPercentage::clone() const
124{
125    return create(m_value);
126}
127
128void SVGNumberAcceptPercentage::setValueAsString(const String& string, ExceptionState& exceptionState)
129{
130    bool valid = parseNumberOrPercentage(string, m_value);
131
132    if (!valid) {
133        exceptionState.throwDOMException(SyntaxError, "The value provided ('" + string + "') is invalid.");
134        m_value = 0;
135    }
136}
137
138SVGNumberAcceptPercentage::SVGNumberAcceptPercentage(float value)
139    : SVGNumber(value)
140{
141}
142
143}
144