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      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/SVGLengthTearOff.h"
     34 
     35 #include "bindings/v8/ExceptionState.h"
     36 #include "core/dom/ExceptionCode.h"
     37 
     38 namespace WebCore {
     39 
     40 namespace {
     41 
     42 inline SVGLengthType toSVGLengthType(unsigned short type)
     43 {
     44     ASSERT(type >= LengthTypeUnknown && type <= LengthTypePC);
     45     return static_cast<SVGLengthType>(type);
     46 }
     47 
     48 } // namespace
     49 
     50 SVGLengthType SVGLengthTearOff::unitType()
     51 {
     52     return target()->unitType();
     53 }
     54 
     55 SVGLengthMode SVGLengthTearOff::unitMode()
     56 {
     57     return target()->unitMode();
     58 }
     59 
     60 float SVGLengthTearOff::value(ExceptionState& es)
     61 {
     62     SVGLengthContext lengthContext(contextElement());
     63     return target()->value(lengthContext, es);
     64 }
     65 
     66 void SVGLengthTearOff::setValue(float value, ExceptionState& es)
     67 {
     68     if (isImmutable()) {
     69         es.throwDOMException(NoModificationAllowedError, "The attribute is read-only.");
     70         return;
     71     }
     72 
     73     SVGLengthContext lengthContext(contextElement());
     74     target()->setValue(value, lengthContext, es);
     75     commitChange();
     76 }
     77 
     78 float SVGLengthTearOff::valueInSpecifiedUnits()
     79 {
     80     return target()->valueInSpecifiedUnits();
     81 }
     82 
     83 void SVGLengthTearOff::setValueInSpecifiedUnits(float value, ExceptionState& es)
     84 {
     85     if (isImmutable()) {
     86         es.throwDOMException(NoModificationAllowedError, "The attribute is read-only.");
     87         return;
     88     }
     89     target()->setValueInSpecifiedUnits(value);
     90     commitChange();
     91 }
     92 
     93 String SVGLengthTearOff::valueAsString()
     94 {
     95     return target()->valueAsString();
     96 }
     97 
     98 void SVGLengthTearOff::setValueAsString(const String& str, ExceptionState& es)
     99 {
    100     if (isImmutable()) {
    101         es.throwDOMException(NoModificationAllowedError, "The attribute is read-only.");
    102         return;
    103     }
    104 
    105     target()->setValueAsString(str, es);
    106     commitChange();
    107 }
    108 
    109 void SVGLengthTearOff::newValueSpecifiedUnits(unsigned short unitType, float valueInSpecifiedUnits, ExceptionState& exceptionState)
    110 {
    111     if (isImmutable()) {
    112         exceptionState.throwDOMException(NoModificationAllowedError, "The object is read-only.");
    113         return;
    114     }
    115 
    116     if (unitType == LengthTypeUnknown || unitType > LengthTypePC) {
    117         exceptionState.throwDOMException(NotSupportedError, "Cannot set value with unknown or invalid units (" + String::number(unitType) + ").");
    118         return;
    119     }
    120 
    121     target()->newValueSpecifiedUnits(toSVGLengthType(unitType), valueInSpecifiedUnits);
    122     commitChange();
    123 }
    124 
    125 void SVGLengthTearOff::convertToSpecifiedUnits(unsigned short unitType, ExceptionState& exceptionState)
    126 {
    127     if (isImmutable()) {
    128         exceptionState.throwDOMException(NoModificationAllowedError, "The object is read-only.");
    129         return;
    130     }
    131 
    132     if (unitType == LengthTypeUnknown || unitType > LengthTypePC) {
    133         exceptionState.throwDOMException(NotSupportedError, "Cannot convert to unknown or invalid units (" + String::number(unitType) + ").");
    134         return;
    135     }
    136 
    137     SVGLengthContext lengthContext(contextElement());
    138     target()->convertToSpecifiedUnits(toSVGLengthType(unitType), lengthContext, exceptionState);
    139     commitChange();
    140 }
    141 
    142 SVGLengthTearOff::SVGLengthTearOff(PassRefPtr<SVGLength> target, SVGElement* contextElement, PropertyIsAnimValType propertyIsAnimVal, const QualifiedName& attributeName)
    143     : SVGPropertyTearOff<SVGLength>(target, contextElement, propertyIsAnimVal, attributeName)
    144 {
    145     ScriptWrappable::init(this);
    146 }
    147 
    148 }
    149