| /* |
| * Copyright (C) 2014 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| |
| #include "core/svg/SVGLengthTearOff.h" |
| |
| #include "bindings/core/v8/ExceptionState.h" |
| #include "core/dom/ExceptionCode.h" |
| #include "core/svg/SVGElement.h" |
| |
| namespace blink { |
| |
| namespace { |
| |
| inline SVGLengthType toSVGLengthType(unsigned short type) |
| { |
| ASSERT(type >= LengthTypeUnknown && type <= LengthTypePC); |
| return static_cast<SVGLengthType>(type); |
| } |
| |
| inline bool canResolveRelativeUnits(const SVGElement* contextElement) |
| { |
| return contextElement && contextElement->inDocument(); |
| } |
| |
| } // namespace |
| |
| SVGLengthType SVGLengthTearOff::unitType() |
| { |
| return hasExposedLengthUnit() ? target()->unitType() : LengthTypeUnknown; |
| } |
| |
| SVGLengthMode SVGLengthTearOff::unitMode() |
| { |
| return target()->unitMode(); |
| } |
| |
| float SVGLengthTearOff::value(ExceptionState& exceptionState) |
| { |
| if (target()->isRelative() && !canResolveRelativeUnits(contextElement())) { |
| exceptionState.throwDOMException(NotSupportedError, "Could not resolve relative length."); |
| return 0; |
| } |
| |
| SVGLengthContext lengthContext(contextElement()); |
| return target()->value(lengthContext); |
| } |
| |
| void SVGLengthTearOff::setValue(float value, ExceptionState& exceptionState) |
| { |
| if (isImmutable()) { |
| exceptionState.throwDOMException(NoModificationAllowedError, "The attribute is read-only."); |
| return; |
| } |
| |
| if (target()->isRelative() && !canResolveRelativeUnits(contextElement())) { |
| exceptionState.throwDOMException(NotSupportedError, "Could not resolve relative length."); |
| return; |
| } |
| |
| SVGLengthContext lengthContext(contextElement()); |
| target()->setValue(value, lengthContext); |
| commitChange(); |
| } |
| |
| float SVGLengthTearOff::valueInSpecifiedUnits() |
| { |
| return target()->valueInSpecifiedUnits(); |
| } |
| |
| void SVGLengthTearOff::setValueInSpecifiedUnits(float value, ExceptionState& es) |
| { |
| if (isImmutable()) { |
| es.throwDOMException(NoModificationAllowedError, "The attribute is read-only."); |
| return; |
| } |
| target()->setValueInSpecifiedUnits(value); |
| commitChange(); |
| } |
| |
| String SVGLengthTearOff::valueAsString() |
| { |
| // TODO(shanmuga.m@samsung.com): Not all <length> properties have 0 (with no unit) as the default (lacuna) value, Need to return default value instead of 0 |
| return hasExposedLengthUnit() ? target()->valueAsString() : String::number(0); |
| } |
| |
| void SVGLengthTearOff::setValueAsString(const String& str, ExceptionState& es) |
| { |
| if (isImmutable()) { |
| es.throwDOMException(NoModificationAllowedError, "The attribute is read-only."); |
| return; |
| } |
| |
| String oldValue = target()->valueAsString(); |
| |
| target()->setValueAsString(str, es); |
| |
| if (!es.hadException() && !hasExposedLengthUnit()) { |
| target()->setValueAsString(oldValue, ASSERT_NO_EXCEPTION); // rollback to old value |
| es.throwDOMException(SyntaxError, "The value provided ('" + str + "') is invalid."); |
| return; |
| } |
| |
| commitChange(); |
| } |
| |
| void SVGLengthTearOff::newValueSpecifiedUnits(unsigned short unitType, float valueInSpecifiedUnits, ExceptionState& exceptionState) |
| { |
| if (isImmutable()) { |
| exceptionState.throwDOMException(NoModificationAllowedError, "The object is read-only."); |
| return; |
| } |
| |
| if (unitType == LengthTypeUnknown || unitType > LengthTypePC) { |
| exceptionState.throwDOMException(NotSupportedError, "Cannot set value with unknown or invalid units (" + String::number(unitType) + ")."); |
| return; |
| } |
| |
| target()->newValueSpecifiedUnits(toSVGLengthType(unitType), valueInSpecifiedUnits); |
| commitChange(); |
| } |
| |
| void SVGLengthTearOff::convertToSpecifiedUnits(unsigned short unitType, ExceptionState& exceptionState) |
| { |
| if (isImmutable()) { |
| exceptionState.throwDOMException(NoModificationAllowedError, "The object is read-only."); |
| return; |
| } |
| |
| if (unitType == LengthTypeUnknown || unitType > LengthTypePC) { |
| exceptionState.throwDOMException(NotSupportedError, "Cannot convert to unknown or invalid units (" + String::number(unitType) + ")."); |
| return; |
| } |
| |
| if ((target()->isRelative() || SVGLength::isRelativeUnit(toSVGLengthType(unitType))) |
| && !canResolveRelativeUnits(contextElement())) { |
| exceptionState.throwDOMException(NotSupportedError, "Could not resolve relative length."); |
| return; |
| } |
| |
| SVGLengthContext lengthContext(contextElement()); |
| target()->convertToSpecifiedUnits(toSVGLengthType(unitType), lengthContext); |
| commitChange(); |
| } |
| |
| SVGLengthTearOff::SVGLengthTearOff(PassRefPtrWillBeRawPtr<SVGLength> target, SVGElement* contextElement, PropertyIsAnimValType propertyIsAnimVal, const QualifiedName& attributeName) |
| : SVGPropertyTearOff<SVGLength>(target, contextElement, propertyIsAnimVal, attributeName) |
| { |
| } |
| |
| } |