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
37 namespace blink {
38
SVGNumber(float value)39 SVGNumber::SVGNumber(float value)
40 : m_value(value)
41 {
42 }
43
clone() const44 PassRefPtr<SVGNumber> SVGNumber::clone() const
45 {
46 return create(m_value);
47 }
48
valueAsString() const49 String SVGNumber::valueAsString() const
50 {
51 return String::number(m_value);
52 }
53
54 template<typename CharType>
parse(const CharType * & ptr,const CharType * end)55 bool SVGNumber::parse(const CharType*& ptr, const CharType* end)
56 {
57 if (!parseNumber(ptr, end, m_value, AllowLeadingAndTrailingWhitespace)) {
58 m_value = 0;
59 return false;
60 }
61
62 if (ptr != end) {
63 m_value = 0;
64 return false;
65 }
66
67 return true;
68 }
69
setValueAsString(const String & string,ExceptionState & exceptionState)70 void SVGNumber::setValueAsString(const String& string, ExceptionState& exceptionState)
71 {
72 if (string.isEmpty()) {
73 m_value = 0;
74 return;
75 }
76
77 bool valid = false;
78 if (string.is8Bit()) {
79 const LChar* ptr = string.characters8();
80 const LChar* end = ptr + string.length();
81 valid = parse(ptr, end);
82 } else {
83 const UChar* ptr = string.characters16();
84 const UChar* end = ptr + string.length();
85 valid = parse(ptr, end);
86 }
87
88 if (!valid) {
89 exceptionState.throwDOMException(SyntaxError, "The value provided ('" + string + "') is invalid.");
90 m_value = 0;
91 }
92 }
93
add(PassRefPtrWillBeRawPtr<SVGPropertyBase> other,SVGElement *)94 void SVGNumber::add(PassRefPtrWillBeRawPtr<SVGPropertyBase> other, SVGElement*)
95 {
96 setValue(m_value + toSVGNumber(other)->value());
97 }
98
calculateAnimatedValue(SVGAnimationElement * animationElement,float percentage,unsigned repeatCount,PassRefPtr<SVGPropertyBase> from,PassRefPtr<SVGPropertyBase> to,PassRefPtr<SVGPropertyBase> toAtEndOfDuration,SVGElement *)99 void SVGNumber::calculateAnimatedValue(SVGAnimationElement* animationElement, float percentage, unsigned repeatCount, PassRefPtr<SVGPropertyBase> from, PassRefPtr<SVGPropertyBase> to, PassRefPtr<SVGPropertyBase> toAtEndOfDuration, SVGElement*)
100 {
101 ASSERT(animationElement);
102
103 RefPtr<SVGNumber> fromNumber = toSVGNumber(from);
104 RefPtr<SVGNumber> toNumber = toSVGNumber(to);
105 RefPtr<SVGNumber> toAtEndOfDurationNumber = toSVGNumber(toAtEndOfDuration);
106
107 animationElement->animateAdditiveNumber(percentage, repeatCount, fromNumber->value(), toNumber->value(), toAtEndOfDurationNumber->value(), m_value);
108 }
109
calculateDistance(PassRefPtr<SVGPropertyBase> other,SVGElement *)110 float SVGNumber::calculateDistance(PassRefPtr<SVGPropertyBase> other, SVGElement*)
111 {
112 return fabsf(m_value - toSVGNumber(other)->value());
113 }
114
clone() const115 PassRefPtr<SVGNumber> SVGNumberAcceptPercentage::clone() const
116 {
117 return create(m_value);
118 }
119
setValueAsString(const String & string,ExceptionState & exceptionState)120 void SVGNumberAcceptPercentage::setValueAsString(const String& string, ExceptionState& exceptionState)
121 {
122 bool valid = parseNumberOrPercentage(string, m_value);
123
124 if (!valid) {
125 exceptionState.throwDOMException(SyntaxError, "The value provided ('" + string + "') is invalid.");
126 m_value = 0;
127 }
128 }
129
SVGNumberAcceptPercentage(float value)130 SVGNumberAcceptPercentage::SVGNumberAcceptPercentage(float value)
131 : SVGNumber(value)
132 {
133 }
134
135 }
136