Add m-esr52 at 52.6.0

1 files changed, 235 insertions, 0 deletions

diff --git a/dom/svg/SVGTests.cpp b/dom/svg/SVGTests.cpp
new file mode 100644
index 0000000000..963ac27e46
--- /dev/null
+++ b/dom/svg/SVGTests.cpp
@@ -0,0 +1,235 @@
+/* -*- 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 "mozilla/dom/SVGTests.h"
+#include "DOMSVGStringList.h"
+#include "nsSVGFeatures.h"
+#include "mozilla/dom/SVGSwitchElement.h"
+#include "nsCharSeparatedTokenizer.h"
+#include "nsStyleUtil.h"
+#include "mozilla/Preferences.h"
+
+namespace mozilla {
+namespace dom {
+
+nsIAtom** SVGTests::sStringListNames[3] =
+{
+  &nsGkAtoms::requiredFeatures,
+  &nsGkAtoms::requiredExtensions,
+  &nsGkAtoms::systemLanguage,
+};
+
+SVGTests::SVGTests()
+{
+  mStringListAttributes[LANGUAGE].SetIsCommaSeparated(true);
+}
+
+already_AddRefed<DOMSVGStringList>
+SVGTests::RequiredFeatures()
+{
+  nsCOMPtr<nsIDOMSVGElement> elem = do_QueryInterface(this);
+  nsSVGElement* element = static_cast<nsSVGElement*>(elem.get());
+  return DOMSVGStringList::GetDOMWrapper(
+           &mStringListAttributes[FEATURES], element, true, FEATURES);
+}
+
+already_AddRefed<DOMSVGStringList>
+SVGTests::RequiredExtensions()
+{
+  nsCOMPtr<nsIDOMSVGElement> elem = do_QueryInterface(this);
+  nsSVGElement* element = static_cast<nsSVGElement*>(elem.get());
+  return DOMSVGStringList::GetDOMWrapper(
+           &mStringListAttributes[EXTENSIONS], element, true, EXTENSIONS);
+}
+
+already_AddRefed<DOMSVGStringList>
+SVGTests::SystemLanguage()
+{
+  nsCOMPtr<nsIDOMSVGElement> elem = do_QueryInterface(this);
+  nsSVGElement* element = static_cast<nsSVGElement*>(elem.get());
+  return DOMSVGStringList::GetDOMWrapper(
+           &mStringListAttributes[LANGUAGE], element, true, LANGUAGE);
+}
+
+bool
+SVGTests::HasExtension(const nsAString& aExtension)
+{
+  return nsSVGFeatures::HasExtension(aExtension, IsInChromeDoc());
+}
+
+bool
+SVGTests::IsConditionalProcessingAttribute(const nsIAtom* aAttribute) const
+{
+  for (uint32_t i = 0; i < ArrayLength(sStringListNames); i++) {
+    if (aAttribute == *sStringListNames[i]) {
+      return true;
+    }
+  }
+  return false;
+}
+
+int32_t
+SVGTests::GetBestLanguagePreferenceRank(const nsSubstring& aAcceptLangs) const
+{
+  const nsDefaultStringComparator defaultComparator;
+
+  if (!mStringListAttributes[LANGUAGE].IsExplicitlySet()) {
+    return -2;
+  }
+
+  int32_t lowestRank = -1;
+
+  for (uint32_t i = 0; i < mStringListAttributes[LANGUAGE].Length(); i++) {
+    nsCharSeparatedTokenizer languageTokenizer(aAcceptLangs, ',');
+    int32_t index = 0;
+    while (languageTokenizer.hasMoreTokens()) {
+      const nsSubstring &languageToken = languageTokenizer.nextToken();
+      bool exactMatch = (languageToken == mStringListAttributes[LANGUAGE][i]);
+      bool prefixOnlyMatch =
+        !exactMatch &&
+        nsStyleUtil::DashMatchCompare(mStringListAttributes[LANGUAGE][i],
+                                      languageTokenizer.nextToken(),
+                                      defaultComparator);
+      if (index == 0 && exactMatch) {
+        // best possible match
+        return 0;
+      }
+      if ((exactMatch || prefixOnlyMatch) &&
+          (lowestRank == -1 || 2 * index + prefixOnlyMatch < lowestRank)) {
+        lowestRank = 2 * index + prefixOnlyMatch;
+      }
+      ++index;
+    }
+  }
+  return lowestRank;
+}
+
+const nsString * const SVGTests::kIgnoreSystemLanguage = (nsString *) 0x01;
+
+bool
+SVGTests::PassesConditionalProcessingTests(const nsString *aAcceptLangs) const
+{
+  // Required Extensions
+  //
+  // The requiredExtensions  attribute defines a list of required language
+  // extensions. Language extensions are capabilities within a user agent that
+  // go beyond the feature set defined in the SVG specification.
+  // Each extension is identified by a URI reference.
+  // For now, claim that mozilla's SVG implementation supports XHTML and MathML.
+  if (mStringListAttributes[EXTENSIONS].IsExplicitlySet()) {
+    if (mStringListAttributes[EXTENSIONS].IsEmpty()) {
+      return false;
+    }
+    for (uint32_t i = 0; i < mStringListAttributes[EXTENSIONS].Length(); i++) {
+      if (!nsSVGFeatures::HasExtension(mStringListAttributes[EXTENSIONS][i], IsInChromeDoc())) {
+        return false;
+      }
+    }
+  }
+
+  if (aAcceptLangs == kIgnoreSystemLanguage) {
+    return true;
+  }
+
+  // systemLanguage
+  //
+  // Evaluates to "true" if one of the languages indicated by user preferences
+  // exactly equals one of the languages given in the value of this parameter,
+  // or if one of the languages indicated by user preferences exactly equals a
+  // prefix of one of the languages given in the value of this parameter such
+  // that the first tag character following the prefix is "-".
+  if (mStringListAttributes[LANGUAGE].IsExplicitlySet()) {
+    if (mStringListAttributes[LANGUAGE].IsEmpty()) {
+      return false;
+    }
+
+    // Get our language preferences
+    const nsAutoString acceptLangs(aAcceptLangs ? *aAcceptLangs :
+      Preferences::GetLocalizedString("intl.accept_languages"));
+
+    if (acceptLangs.IsEmpty()) {
+      NS_WARNING("no default language specified for systemLanguage conditional test");
+      return false;
+    }
+
+    const nsDefaultStringComparator defaultComparator;
+
+    for (uint32_t i = 0; i < mStringListAttributes[LANGUAGE].Length(); i++) {
+      nsCharSeparatedTokenizer languageTokenizer(acceptLangs, ',');
+      while (languageTokenizer.hasMoreTokens()) {
+        if (nsStyleUtil::DashMatchCompare(mStringListAttributes[LANGUAGE][i],
+                                          languageTokenizer.nextToken(),
+                                          defaultComparator)) {
+          return true;
+        }
+      }
+    }
+    return false;
+  }
+
+  return true;
+}
+
+bool
+SVGTests::ParseConditionalProcessingAttribute(nsIAtom* aAttribute,
+                                              const nsAString& aValue,
+                                              nsAttrValue& aResult)
+{
+  for (uint32_t i = 0; i < ArrayLength(sStringListNames); i++) {
+    if (aAttribute == *sStringListNames[i]) {
+      nsresult rv = mStringListAttributes[i].SetValue(aValue);
+      if (NS_FAILED(rv)) {
+        mStringListAttributes[i].Clear();
+      }
+      MaybeInvalidate();
+      return true;
+    }
+  }
+  return false;
+}
+
+void
+SVGTests::UnsetAttr(const nsIAtom* aAttribute)
+{
+  for (uint32_t i = 0; i < ArrayLength(sStringListNames); i++) {
+    if (aAttribute == *sStringListNames[i]) {
+      mStringListAttributes[i].Clear();
+      MaybeInvalidate();
+      return;
+    }
+  }
+}
+
+nsIAtom*
+SVGTests::GetAttrName(uint8_t aAttrEnum) const
+{
+  return *sStringListNames[aAttrEnum];
+}
+
+void
+SVGTests::GetAttrValue(uint8_t aAttrEnum, nsAttrValue& aValue) const
+{
+  MOZ_ASSERT(aAttrEnum < ArrayLength(sStringListNames),
+             "aAttrEnum out of range");
+  aValue.SetTo(mStringListAttributes[aAttrEnum], nullptr);
+}
+
+void
+SVGTests::MaybeInvalidate()
+{
+  nsCOMPtr<nsIDOMSVGElement> elem = do_QueryInterface(this);
+  nsSVGElement* element = static_cast<nsSVGElement*>(elem.get());
+
+  nsIContent* parent = element->GetFlattenedTreeParent();
+
+  if (parent &&
+      parent->NodeInfo()->Equals(nsGkAtoms::svgSwitch, kNameSpaceID_SVG)) {
+    static_cast<dom::SVGSwitchElement*>(parent)->MaybeInvalidate();
+  }
+}
+
+} // namespace dom
+} // namespace mozilla