void SVGViewSpec::setViewBoxString(const String& viewBox)
{
float x, y, w, h;
const UChar* c = viewBox.characters();
const UChar* end = c + viewBox.length();
if (!parseViewBox(c, end, x, y, w, h, false))
return;
setViewBoxBaseValue(FloatRect(x, y, w, h));
}
void SVGViewSpec::setViewBoxString(const String& viewBoxStr)
{
FloatRect viewBox;
const UChar* c = viewBoxStr.characters();
const UChar* end = c + viewBoxStr.length();
if (!parseViewBox(m_contextElement->document(), c, end, viewBox, false))
return;
setViewBoxBaseValue(viewBox);
}
bool SVGFitToViewBox::parseMappedAttribute(MappedAttribute* attr)
{
if (attr->name() == SVGNames::viewBoxAttr) {
parseViewBox(attr->value());
return true;
} else if (attr->name() == SVGNames::preserveAspectRatioAttr) {
preserveAspectRatioBaseValue()->parsePreserveAspectRatio(attr->value());
return true;
}
return false;
}
bool SVGFitToViewBox::parseAttribute(Document* document, Attribute* attr)
{
if (attr->name() == SVGNames::viewBoxAttr) {
FloatRect viewBox;
if (!attr->value().isNull())
parseViewBox(document, attr->value(), viewBox);
setViewBoxBaseValue(viewBox);
return true;
} else if (attr->name() == SVGNames::preserveAspectRatioAttr) {
SVGPreserveAspectRatio preserveAspectRatio;
preserveAspectRatio.parse(attr->value());
setPreserveAspectRatioBaseValue(preserveAspectRatio);
return true;
}
return false;
}
bool SVGFitToViewBox::parseMappedAttribute(MappedAttribute* attr)
{
if (attr->name() == SVGNames::viewBoxAttr) {
float x = 0.0f, y = 0.0f, w = 0.0f, h = 0.0f;
const UChar* c = attr->value().characters();
const UChar* end = c + attr->value().length();
if (parseViewBox(c, end, x, y, w, h))
setViewBoxBaseValue(FloatRect(x, y, w, h));
return true;
} else if (attr->name() == SVGNames::preserveAspectRatioAttr) {
const UChar* c = attr->value().characters();
const UChar* end = c + attr->value().length();
preserveAspectRatioBaseValue()->parsePreserveAspectRatio(c, end);
return true;
}
return false;
}
bool SVGViewSpec::parseViewSpec(const String& viewSpec)
{
const UChar* currViewSpec = viewSpec.characters();
const UChar* end = currViewSpec + viewSpec.length();
if (currViewSpec >= end)
return false;
if (!skipString(currViewSpec, end, svgViewSpec, sizeof(svgViewSpec) / sizeof(UChar)))
return false;
if (currViewSpec >= end || *currViewSpec != '(' )
return false;
currViewSpec++;
while (currViewSpec < end && *currViewSpec != ')') {
if (*currViewSpec == 'v') {
if (skipString(currViewSpec, end, viewBoxSpec, sizeof(viewBoxSpec) / sizeof(UChar))) {
if (currViewSpec >= end || *currViewSpec != '(')
return false;
currViewSpec++;
float x, y, w, h;
if (!parseViewBox(currViewSpec, end, x, y, w, h, false))
return false;
setViewBoxBaseValue(FloatRect(x, y, w, h));
if (currViewSpec >= end || *currViewSpec != ')')
return false;
currViewSpec++;
} else if (skipString(currViewSpec, end, viewTargetSpec, sizeof(viewTargetSpec) / sizeof(UChar))) {
if (currViewSpec >= end || *currViewSpec != '(')
return false;
const UChar* viewTargetStart = ++currViewSpec;
while (currViewSpec < end && *currViewSpec != ')')
currViewSpec++;
if (currViewSpec >= end)
return false;
setViewTargetString(String(viewTargetStart, currViewSpec - viewTargetStart));
currViewSpec++;
} else
return false;
} else if (*currViewSpec == 'z') {
if (!skipString(currViewSpec, end, zoomAndPanSpec, sizeof(zoomAndPanSpec) / sizeof(UChar)))
return false;
if (currViewSpec >= end || *currViewSpec != '(')
return false;
currViewSpec++;
if (!parseZoomAndPan(currViewSpec, end))
return false;
if (currViewSpec >= end || *currViewSpec != ')')
return false;
currViewSpec++;
} else if (*currViewSpec == 'p') {
if (!skipString(currViewSpec, end, preserveAspectRatioSpec, sizeof(preserveAspectRatioSpec) / sizeof(UChar)))
return false;
if (currViewSpec >= end || *currViewSpec != '(')
return false;
currViewSpec++;
if (!preserveAspectRatioBaseValue()->parsePreserveAspectRatio(currViewSpec, end, false))
return false;
if (currViewSpec >= end || *currViewSpec != ')')
return false;
currViewSpec++;
} else if (*currViewSpec == 't') {
if (!skipString(currViewSpec, end, transformSpec, sizeof(transformSpec) / sizeof(UChar)))
return false;
if (currViewSpec >= end || *currViewSpec != '(')
return false;
currViewSpec++;
SVGTransformable::parseTransformAttribute(m_transform.get(), currViewSpec, end);
if (currViewSpec >= end || *currViewSpec != ')')
return false;
currViewSpec++;
} else
return false;
if (currViewSpec < end && *currViewSpec == ';')
currViewSpec++;
}
if (currViewSpec >= end || *currViewSpec != ')')
return false;
return true;
}
bool SVGViewSpec::parseViewSpec(const String& viewSpec)
{
const UChar* currViewSpec = viewSpec.characters();
const UChar* end = currViewSpec + viewSpec.length();
if (currViewSpec >= end)
return false;
if (!skipString(currViewSpec, end, svgViewSpec, WTF_ARRAY_LENGTH(svgViewSpec)))
return false;
if (currViewSpec >= end || *currViewSpec != '(')
return false;
currViewSpec++;
while (currViewSpec < end && *currViewSpec != ')') {
if (*currViewSpec == 'v') {
if (skipString(currViewSpec, end, viewBoxSpec, WTF_ARRAY_LENGTH(viewBoxSpec))) {
if (currViewSpec >= end || *currViewSpec != '(')
return false;
currViewSpec++;
FloatRect viewBox;
if (!parseViewBox(m_contextElement->document(), currViewSpec, end, viewBox, false))
return false;
setViewBoxBaseValue(viewBox);
if (currViewSpec >= end || *currViewSpec != ')')
return false;
currViewSpec++;
} else if (skipString(currViewSpec, end, viewTargetSpec, WTF_ARRAY_LENGTH(viewTargetSpec))) {
if (currViewSpec >= end || *currViewSpec != '(')
return false;
const UChar* viewTargetStart = ++currViewSpec;
while (currViewSpec < end && *currViewSpec != ')')
currViewSpec++;
if (currViewSpec >= end)
return false;
setViewTargetString(String(viewTargetStart, currViewSpec - viewTargetStart));
currViewSpec++;
} else
return false;
} else if (*currViewSpec == 'z') {
if (!skipString(currViewSpec, end, zoomAndPanSpec, WTF_ARRAY_LENGTH(zoomAndPanSpec)))
return false;
if (currViewSpec >= end || *currViewSpec != '(')
return false;
currViewSpec++;
if (!parseZoomAndPan(currViewSpec, end))
return false;
if (currViewSpec >= end || *currViewSpec != ')')
return false;
currViewSpec++;
} else if (*currViewSpec == 'p') {
if (!skipString(currViewSpec, end, preserveAspectRatioSpec, WTF_ARRAY_LENGTH(preserveAspectRatioSpec)))
return false;
if (currViewSpec >= end || *currViewSpec != '(')
return false;
currViewSpec++;
bool result = false;
setPreserveAspectRatioBaseValue(SVGPreserveAspectRatio::parsePreserveAspectRatio(currViewSpec, end, false, result));
if (!result)
return false;
if (currViewSpec >= end || *currViewSpec != ')')
return false;
currViewSpec++;
} else if (*currViewSpec == 't') {
if (!skipString(currViewSpec, end, transformSpec, WTF_ARRAY_LENGTH(transformSpec)))
return false;
if (currViewSpec >= end || *currViewSpec != '(')
return false;
currViewSpec++;
SVGTransformable::parseTransformAttribute(m_transform, currViewSpec, end, SVGTransformable::DoNotClearList);
if (currViewSpec >= end || *currViewSpec != ')')
return false;
currViewSpec++;
} else
return false;
if (currViewSpec < end && *currViewSpec == ';')
currViewSpec++;
}
if (currViewSpec >= end || *currViewSpec != ')')
return false;
return true;
}
bool SVGFitToViewBox::parseViewBox(Document* doc, const String& s, FloatRect& viewBox)
{
auto upconvertedCharacters = StringView(s).upconvertedCharacters();
const UChar* characters = upconvertedCharacters;
return parseViewBox(doc, characters, characters + s.length(), viewBox, true);
}
bool SVGFitToViewBox::parseViewBox(Document* doc, const String& s, FloatRect& viewBox)
{
const UChar* c = s.characters();
const UChar* end = c + s.length();
return parseViewBox(doc, c, end, viewBox, true);
}
