1 files changed, 145 insertions, 0 deletions
diff --git a/dom/svg/SVGPreserveAspectRatio.cpp b/dom/svg/SVGPreserveAspectRatio.cpp
new file mode 100644
index 0000000000..0cd947e867
--- /dev/null
+++ b/dom/svg/SVGPreserveAspectRatio.cpp
@@ -0,0 +1,145 @@
+/* -*- 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