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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "SVGPreserveAspectRatio.h"
#include "mozilla/dom/SVGPreserveAspectRatioBinding.h"
#include "nsContentUtils.h"
#include "nsWhitespaceTokenizer.h"
#include "SVGAnimatedPreserveAspectRatio.h"
using namespace mozilla::dom;
using namespace mozilla::dom::SVGPreserveAspectRatio_Binding;
namespace mozilla {
NS_SVG_VAL_IMPL_CYCLE_COLLECTION_WRAPPERCACHED(DOMSVGPreserveAspectRatio,
mSVGElement)
static const char* sAlignStrings[] = {
"none", "xMinYMin", "xMidYMin", "xMaxYMin", "xMinYMid",
"xMidYMid", "xMaxYMid", "xMinYMax", "xMidYMax", "xMaxYMax"};
static const char* sMeetOrSliceStrings[] = {"meet", "slice"};
static uint16_t GetAlignForString(const nsAString& aAlignString) {
for (uint32_t i = 0; i < ArrayLength(sAlignStrings); i++) {
if (aAlignString.EqualsASCII(sAlignStrings[i])) {
return (i + SVG_ALIGN_MIN_VALID);
}
}
return SVG_PRESERVEASPECTRATIO_UNKNOWN;
}
static uint16_t GetMeetOrSliceForString(const nsAString& aMeetOrSlice) {
for (uint32_t i = 0; i < ArrayLength(sMeetOrSliceStrings); i++) {
if (aMeetOrSlice.EqualsASCII(sMeetOrSliceStrings[i])) {
return (i + SVG_MEETORSLICE_MIN_VALID);
}
}
return SVG_MEETORSLICE_UNKNOWN;
}
/* static */
nsresult SVGPreserveAspectRatio::FromString(const nsAString& aString,
SVGPreserveAspectRatio* aValue) {
nsWhitespaceTokenizerTemplate<nsContentUtils::IsHTMLWhitespace> tokenizer(
aString);
if (tokenizer.whitespaceBeforeFirstToken() || !tokenizer.hasMoreTokens()) {
return NS_ERROR_DOM_SYNTAX_ERR;
}
const nsAString& token = tokenizer.nextToken();
nsresult rv;
SVGPreserveAspectRatio val;
rv = val.SetAlign(GetAlignForString(token));
if (NS_FAILED(rv)) {
return NS_ERROR_DOM_SYNTAX_ERR;
}
if (tokenizer.hasMoreTokens()) {
rv = val.SetMeetOrSlice(GetMeetOrSliceForString(tokenizer.nextToken()));
if (NS_FAILED(rv)) {
return NS_ERROR_DOM_SYNTAX_ERR;
}
} else {
val.SetMeetOrSlice(SVG_MEETORSLICE_MEET);
}
if (tokenizer.whitespaceAfterCurrentToken()) {
return NS_ERROR_DOM_SYNTAX_ERR;
}
*aValue = val;
return NS_OK;
}
void SVGPreserveAspectRatio::ToString(nsAString& aValueAsString) const {
MOZ_ASSERT(mAlign >= SVG_ALIGN_MIN_VALID && mAlign <= SVG_ALIGN_MAX_VALID,
"Unknown align");
aValueAsString.AssignASCII(sAlignStrings[mAlign - SVG_ALIGN_MIN_VALID]);
if (mAlign != uint8_t(SVG_PRESERVEASPECTRATIO_NONE)) {
MOZ_ASSERT(mMeetOrSlice >= SVG_MEETORSLICE_MIN_VALID &&
mMeetOrSlice <= SVG_MEETORSLICE_MAX_VALID,
"Unknown meetOrSlice");
aValueAsString.Append(' ');
aValueAsString.AppendASCII(
sMeetOrSliceStrings[mMeetOrSlice - SVG_MEETORSLICE_MIN_VALID]);
}
}
bool SVGPreserveAspectRatio::operator==(
const SVGPreserveAspectRatio& aOther) const {
return mAlign == aOther.mAlign && mMeetOrSlice == aOther.mMeetOrSlice;
}
JSObject* DOMSVGPreserveAspectRatio::WrapObject(
JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
return mozilla::dom::SVGPreserveAspectRatio_Binding::Wrap(aCx, this,
aGivenProto);
}
uint16_t DOMSVGPreserveAspectRatio::Align() {
if (mIsBaseValue) {
return mVal->GetBaseValue().GetAlign();
}
mSVGElement->FlushAnimations();
return mVal->GetAnimValue().GetAlign();
}
void DOMSVGPreserveAspectRatio::SetAlign(uint16_t aAlign, ErrorResult& rv) {
if (!mIsBaseValue) {
rv.Throw(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR);
return;
}
rv = mVal->SetBaseAlign(aAlign, mSVGElement);
}
uint16_t DOMSVGPreserveAspectRatio::MeetOrSlice() {
if (mIsBaseValue) {
return mVal->GetBaseValue().GetMeetOrSlice();
}
mSVGElement->FlushAnimations();
return mVal->GetAnimValue().GetMeetOrSlice();
}
void DOMSVGPreserveAspectRatio::SetMeetOrSlice(uint16_t aMeetOrSlice,
ErrorResult& rv) {
if (!mIsBaseValue) {
rv.Throw(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR);
return;
}
rv = mVal->SetBaseMeetOrSlice(aMeetOrSlice, mSVGElement);
}
} // namespace mozilla
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