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
33#include "core/svg/SVGEnumeration.h"
34
35#include "bindings/core/v8/ExceptionState.h"
36#include "bindings/core/v8/ExceptionStatePlaceholder.h"
37#include "core/dom/ExceptionCode.h"
38#include "core/svg/SVGAnimationElement.h"
39
40namespace blink {
41
42inline PassRefPtr<SVGEnumerationBase> toSVGEnumerationBase(PassRefPtr<SVGPropertyBase> passBase)
43{
44    RefPtr<SVGPropertyBase> base = passBase;
45    ASSERT(base->type() == SVGEnumerationBase::classType());
46    return static_pointer_cast<SVGEnumerationBase>(base.release());
47}
48
49SVGEnumerationBase::~SVGEnumerationBase()
50{
51}
52
53PassRefPtr<SVGPropertyBase> SVGEnumerationBase::cloneForAnimation(const String& value) const
54{
55    RefPtr<SVGEnumerationBase> svgEnumeration = clone();
56    svgEnumeration->setValueAsString(value, IGNORE_EXCEPTION);
57    return svgEnumeration.release();
58}
59
60String SVGEnumerationBase::valueAsString() const
61{
62    StringEntries::const_iterator it = m_entries.begin();
63    StringEntries::const_iterator itEnd = m_entries.end();
64    for (; it != itEnd; ++it) {
65        if (m_value == it->first)
66            return it->second;
67    }
68
69    ASSERT(m_value < maxInternalEnumValue());
70    return emptyString();
71}
72
73void SVGEnumerationBase::setValue(unsigned short value, ExceptionState& exceptionState)
74{
75    if (!value) {
76        exceptionState.throwTypeError("The enumeration value provided is 0, which is not settable.");
77        return;
78    }
79
80    if (value > maxExposedEnumValue()) {
81        exceptionState.throwTypeError("The enumeration value provided (" + String::number(value) + ") is larger than the largest allowed value (" + String::number(maxExposedEnumValue()) + ").");
82        return;
83    }
84
85    m_value = value;
86    notifyChange();
87}
88
89void SVGEnumerationBase::setValueAsString(const String& string, ExceptionState& exceptionState)
90{
91    StringEntries::const_iterator it = m_entries.begin();
92    StringEntries::const_iterator itEnd = m_entries.end();
93    for (; it != itEnd; ++it) {
94        if (string == it->second) {
95            // 0 corresponds to _UNKNOWN enumeration values, and should not be settable.
96            ASSERT(it->first);
97            m_value = it->first;
98            notifyChange();
99            return;
100        }
101    }
102
103    exceptionState.throwDOMException(SyntaxError, "The value provided ('" + string + "') is invalid.");
104    notifyChange();
105}
106
107void SVGEnumerationBase::add(PassRefPtrWillBeRawPtr<SVGPropertyBase>, SVGElement*)
108{
109    ASSERT_NOT_REACHED();
110}
111
112void SVGEnumerationBase::calculateAnimatedValue(SVGAnimationElement* animationElement, float percentage, unsigned repeatCount, PassRefPtr<SVGPropertyBase> from, PassRefPtr<SVGPropertyBase> to, PassRefPtr<SVGPropertyBase>, SVGElement*)
113{
114    ASSERT(animationElement);
115    unsigned short fromEnumeration = animationElement->animationMode() == ToAnimation ? m_value : toSVGEnumerationBase(from)->value();
116    unsigned short toEnumeration = toSVGEnumerationBase(to)->value();
117
118    animationElement->animateDiscreteType<unsigned short>(percentage, fromEnumeration, toEnumeration, m_value);
119}
120
121float SVGEnumerationBase::calculateDistance(PassRefPtr<SVGPropertyBase>, SVGElement*)
122{
123    // No paced animations for boolean.
124    return -1;
125}
126
127}
128