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 WebCore {
38
SVGNumber(float value)39 SVGNumber::SVGNumber(float value)
40 : SVGPropertyBase(classType())
41 , m_value(value)
42 {
43 }
44
clone() const45 PassRefPtr<SVGNumber> SVGNumber::clone() const
46 {
47 return create(m_value);
48 }
49
cloneForAnimation(const String & value) const50 PassRefPtr<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
valueAsString() const57 String SVGNumber::valueAsString() const
58 {
59 return String::number(m_value);
60 }
61
62 template<typename CharType>
parse(const CharType * & ptr,const CharType * end)63 bool 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
setValueAsString(const String & string,ExceptionState & exceptionState)78 void 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
add(PassRefPtrWillBeRawPtr<SVGPropertyBase> other,SVGElement *)102 void SVGNumber::add(PassRefPtrWillBeRawPtr<SVGPropertyBase> other, SVGElement*)
103 {
104 setValue(m_value + toSVGNumber(other)->value());
105 }
106
calculateAnimatedValue(SVGAnimationElement * animationElement,float percentage,unsigned repeatCount,PassRefPtr<SVGPropertyBase> from,PassRefPtr<SVGPropertyBase> to,PassRefPtr<SVGPropertyBase> toAtEndOfDuration,SVGElement *)107 void 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
calculateDistance(PassRefPtr<SVGPropertyBase> other,SVGElement *)118 float SVGNumber::calculateDistance(PassRefPtr<SVGPropertyBase> other, SVGElement*)
119 {
120 return fabsf(m_value - toSVGNumber(other)->value());
121 }
122
clone() const123 PassRefPtr<SVGNumber> SVGNumberAcceptPercentage::clone() const
124 {
125 return create(m_value);
126 }
127
setValueAsString(const String & string,ExceptionState & exceptionState)128 void 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
SVGNumberAcceptPercentage(float value)138 SVGNumberAcceptPercentage::SVGNumberAcceptPercentage(float value)
139 : SVGNumber(value)
140 {
141 }
142
143 }
144