Home | History | Annotate | Download | only in svg 
      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/v8/ExceptionState.h"
     36 #include "bindings/v8/ExceptionStatePlaceholder.h"
     37 #include "core/dom/ExceptionCode.h"
     38 #include "core/svg/SVGAnimationElement.h"
     39 
     40 namespace WebCore {
     41 
     42 inline 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 
     49 SVGEnumerationBase::~SVGEnumerationBase()
     50 {
     51 }
     52 
     53 PassRefPtr<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 
     60 String 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 < maxEnumValue());
     70     return emptyString();
     71 }
     72 
     73 void 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 > maxEnumValue()) {
     81         exceptionState.throwTypeError("The enumeration value provided (" + String::number(value) + ") is larger than the largest allowed value (" + String::number(maxEnumValue()) + ").");
     82         return;
     83     }
     84 
     85     m_value = value;
     86     notifyChange();
     87 }
     88 
     89 void 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 
    107 void SVGEnumerationBase::add(PassRefPtrWillBeRawPtr<SVGPropertyBase>, SVGElement*)
    108 {
    109     ASSERT_NOT_REACHED();
    110 }
    111 
    112 void 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 
    121 float SVGEnumerationBase::calculateDistance(PassRefPtr<SVGPropertyBase>, SVGElement*)
    122 {
    123     // No paced animations for boolean.
    124     return -1;
    125 }
    126 
    127 }
    128