Add m-esr52 at 52.6.0

1 files changed, 360 insertions, 0 deletions

diff --git a/dom/html/HTMLSharedElement.cpp b/dom/html/HTMLSharedElement.cpp
new file mode 100644
index 000000000..bcb84d29b
--- /dev/null
+++ b/dom/html/HTMLSharedElement.cpp
@@ -0,0 +1,360 @@
+/* -*- 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/HTMLSharedElement.h"
+#include "mozilla/dom/HTMLBaseElementBinding.h"
+#include "mozilla/dom/HTMLDirectoryElementBinding.h"
+#include "mozilla/dom/HTMLHeadElementBinding.h"
+#include "mozilla/dom/HTMLHtmlElementBinding.h"
+#include "mozilla/dom/HTMLParamElementBinding.h"
+#include "mozilla/dom/HTMLQuoteElementBinding.h"
+
+#include "nsAttrValueInlines.h"
+#include "nsStyleConsts.h"
+#include "nsRuleData.h"
+#include "nsMappedAttributes.h"
+#include "nsContentUtils.h"
+#include "nsIContentSecurityPolicy.h"
+#include "nsIURI.h"
+
+NS_IMPL_NS_NEW_HTML_ELEMENT(Shared)
+
+namespace mozilla {
+namespace dom {
+
+extern nsAttrValue::EnumTable kListTypeTable[];
+
+HTMLSharedElement::~HTMLSharedElement()
+{
+}
+
+NS_IMPL_ADDREF_INHERITED(HTMLSharedElement, Element)
+NS_IMPL_RELEASE_INHERITED(HTMLSharedElement, Element)
+
+// QueryInterface implementation for HTMLSharedElement
+NS_INTERFACE_MAP_BEGIN(HTMLSharedElement)
+  NS_INTERFACE_MAP_ENTRY_IF_TAG(nsIDOMHTMLBaseElement, base)
+  NS_INTERFACE_MAP_ENTRY_IF_TAG(nsIDOMHTMLDirectoryElement, dir)
+  NS_INTERFACE_MAP_ENTRY_IF_TAG(nsIDOMHTMLQuoteElement, q)
+  NS_INTERFACE_MAP_ENTRY_IF_TAG(nsIDOMHTMLQuoteElement, blockquote)
+  NS_INTERFACE_MAP_ENTRY_IF_TAG(nsIDOMHTMLHeadElement, head)
+  NS_INTERFACE_MAP_ENTRY_IF_TAG(nsIDOMHTMLHtmlElement, html)
+NS_INTERFACE_MAP_END_INHERITING(nsGenericHTMLElement)
+
+
+NS_IMPL_ELEMENT_CLONE(HTMLSharedElement)
+
+// nsIDOMHTMLQuoteElement
+NS_IMPL_URI_ATTR(HTMLSharedElement, Cite, cite)
+
+// nsIDOMHTMLHeadElement
+// Empty
+
+// nsIDOMHTMLHtmlElement
+NS_IMPL_STRING_ATTR(HTMLSharedElement, Version, version)
+
+// nsIDOMHTMLBaseElement
+NS_IMPL_STRING_ATTR(HTMLSharedElement, Target, target)
+
+NS_IMETHODIMP
+HTMLSharedElement::GetHref(nsAString& aValue)
+{
+  MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::base),
+             "This should only get called for <base> elements");
+  nsAutoString href;
+  GetAttr(kNameSpaceID_None, nsGkAtoms::href, href);
+
+  nsCOMPtr<nsIURI> uri;
+  nsIDocument* doc = OwnerDoc();
+  nsContentUtils::NewURIWithDocumentCharset(
+    getter_AddRefs(uri), href, doc, doc->GetFallbackBaseURI());
+
+  if (!uri) {
+    aValue = href;
+    return NS_OK;
+  }
+  
+  nsAutoCString spec;
+  uri->GetSpec(spec);
+  CopyUTF8toUTF16(spec, aValue);
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+HTMLSharedElement::SetHref(const nsAString& aValue)
+{
+  return SetAttrHelper(nsGkAtoms::href, aValue);
+}
+
+
+bool
+HTMLSharedElement::ParseAttribute(int32_t aNamespaceID,
+                                  nsIAtom* aAttribute,
+                                  const nsAString& aValue,
+                                  nsAttrValue& aResult)
+{
+  if (aNamespaceID == kNameSpaceID_None &&
+      mNodeInfo->Equals(nsGkAtoms::dir)) {
+    if (aAttribute == nsGkAtoms::type) {
+      return aResult.ParseEnumValue(aValue, mozilla::dom::kListTypeTable, false);
+    }
+    if (aAttribute == nsGkAtoms::start) {
+      return aResult.ParseIntWithBounds(aValue, 1);
+    }
+  }
+
+  return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
+                                              aResult);
+}
+
+static void
+DirectoryMapAttributesIntoRule(const nsMappedAttributes* aAttributes,
+                               nsRuleData* aData)
+{
+  if (aData->mSIDs & NS_STYLE_INHERIT_BIT(List)) {
+    nsCSSValue* listStyleType = aData->ValueForListStyleType();
+    if (listStyleType->GetUnit() == eCSSUnit_Null) {
+      // type: enum
+      const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::type);
+      if (value) {
+        if (value->Type() == nsAttrValue::eEnum) {
+          listStyleType->SetIntValue(value->GetEnumValue(), eCSSUnit_Enumerated);
+        } else {
+          listStyleType->SetIntValue(NS_STYLE_LIST_STYLE_DISC, eCSSUnit_Enumerated);
+        }
+      }
+    }
+  }
+
+  nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aData);
+}
+
+NS_IMETHODIMP_(bool)
+HTMLSharedElement::IsAttributeMapped(const nsIAtom* aAttribute) const
+{
+  if (mNodeInfo->Equals(nsGkAtoms::dir)) {
+    static const MappedAttributeEntry attributes[] = {
+      { &nsGkAtoms::type },
+      // { &nsGkAtoms::compact }, // XXX
+      { nullptr} 
+    };
+  
+    static const MappedAttributeEntry* const map[] = {
+      attributes,
+      sCommonAttributeMap,
+    };
+
+    return FindAttributeDependence(aAttribute, map);
+  }
+
+  return nsGenericHTMLElement::IsAttributeMapped(aAttribute);
+}
+
+static void
+SetBaseURIUsingFirstBaseWithHref(nsIDocument* aDocument, nsIContent* aMustMatch)
+{
+  NS_PRECONDITION(aDocument, "Need a document!");
+
+  for (nsIContent* child = aDocument->GetFirstChild(); child;
+       child = child->GetNextNode()) {
+    if (child->IsHTMLElement(nsGkAtoms::base) &&
+        child->HasAttr(kNameSpaceID_None, nsGkAtoms::href)) {
+      if (aMustMatch && child != aMustMatch) {
+        return;
+      }
+
+      // Resolve the <base> element's href relative to our document's
+      // fallback base URI.
+      nsAutoString href;
+      child->GetAttr(kNameSpaceID_None, nsGkAtoms::href, href);
+
+      nsCOMPtr<nsIURI> newBaseURI;
+      nsContentUtils::NewURIWithDocumentCharset(
+        getter_AddRefs(newBaseURI), href, aDocument,
+        aDocument->GetFallbackBaseURI());
+
+      // Check if CSP allows this base-uri
+      nsCOMPtr<nsIContentSecurityPolicy> csp;
+      nsresult rv = aDocument->NodePrincipal()->GetCsp(getter_AddRefs(csp));
+      NS_ASSERTION(NS_SUCCEEDED(rv), "Getting CSP Failed");
+      // For all the different error cases we assign a nullptr to
+      // newBaseURI, so we basically call aDocument->SetBaseURI(nullptr);
+      if (NS_FAILED(rv)) {
+        newBaseURI = nullptr;
+      }
+      if (csp && newBaseURI) {
+        // base-uri is only enforced if explicitly defined in the
+        // policy - do *not* consult default-src, see:
+        // http://www.w3.org/TR/CSP2/#directive-default-src
+        bool cspPermitsBaseURI = true;
+        rv = csp->Permits(newBaseURI, nsIContentSecurityPolicy::BASE_URI_DIRECTIVE,
+                          true, &cspPermitsBaseURI);
+        if (NS_FAILED(rv) || !cspPermitsBaseURI) {
+          newBaseURI = nullptr;
+        }
+      }
+      aDocument->SetBaseURI(newBaseURI);
+      aDocument->SetChromeXHRDocBaseURI(nullptr);
+      return;
+    }
+  }
+
+  aDocument->SetBaseURI(nullptr);
+}
+
+static void
+SetBaseTargetUsingFirstBaseWithTarget(nsIDocument* aDocument,
+                                      nsIContent* aMustMatch)
+{
+  NS_PRECONDITION(aDocument, "Need a document!");
+
+  for (nsIContent* child = aDocument->GetFirstChild(); child;
+       child = child->GetNextNode()) {
+    if (child->IsHTMLElement(nsGkAtoms::base) &&
+        child->HasAttr(kNameSpaceID_None, nsGkAtoms::target)) {
+      if (aMustMatch && child != aMustMatch) {
+        return;
+      }
+
+      nsString target;
+      child->GetAttr(kNameSpaceID_None, nsGkAtoms::target, target);
+      aDocument->SetBaseTarget(target);
+      return;
+    }
+  }
+
+  aDocument->SetBaseTarget(EmptyString());
+}
+
+nsresult
+HTMLSharedElement::SetAttr(int32_t aNameSpaceID, nsIAtom* aName,
+                           nsIAtom* aPrefix, const nsAString& aValue,
+                           bool aNotify)
+{
+  nsresult rv = nsGenericHTMLElement::SetAttr(aNameSpaceID, aName, aPrefix,
+                                              aValue, aNotify);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  // If the href attribute of a <base> tag is changing, we may need to update
+  // the document's base URI, which will cause all the links on the page to be
+  // re-resolved given the new base.  If the target attribute is changing, we
+  // similarly need to change the base target.
+  if (mNodeInfo->Equals(nsGkAtoms::base) &&
+      aNameSpaceID == kNameSpaceID_None &&
+      IsInUncomposedDoc()) {
+    if (aName == nsGkAtoms::href) {
+      SetBaseURIUsingFirstBaseWithHref(GetUncomposedDoc(), this);
+    } else if (aName == nsGkAtoms::target) {
+      SetBaseTargetUsingFirstBaseWithTarget(GetUncomposedDoc(), this);
+    }
+  }
+
+  return NS_OK;
+}
+
+nsresult
+HTMLSharedElement::UnsetAttr(int32_t aNameSpaceID, nsIAtom* aName,
+                             bool aNotify)
+{
+  nsresult rv = nsGenericHTMLElement::UnsetAttr(aNameSpaceID, aName, aNotify);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  // If we're the first <base> with an href and our href attribute is being
+  // unset, then we're no longer the first <base> with an href, and we need to
+  // find the new one.  Similar for target.
+  if (mNodeInfo->Equals(nsGkAtoms::base) &&
+      aNameSpaceID == kNameSpaceID_None &&
+      IsInUncomposedDoc()) {
+    if (aName == nsGkAtoms::href) {
+      SetBaseURIUsingFirstBaseWithHref(GetUncomposedDoc(), nullptr);
+    } else if (aName == nsGkAtoms::target) {
+      SetBaseTargetUsingFirstBaseWithTarget(GetUncomposedDoc(), nullptr);
+    }
+  }
+
+  return NS_OK;
+}
+
+nsresult
+HTMLSharedElement::BindToTree(nsIDocument* aDocument, nsIContent* aParent,
+                              nsIContent* aBindingParent,
+                              bool aCompileEventHandlers)
+{
+  nsresult rv = nsGenericHTMLElement::BindToTree(aDocument, aParent,
+                                                 aBindingParent,
+                                                 aCompileEventHandlers);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  // The document stores a pointer to its base URI and base target, which we may
+  // need to update here.
+  if (mNodeInfo->Equals(nsGkAtoms::base) &&
+      aDocument) {
+    if (HasAttr(kNameSpaceID_None, nsGkAtoms::href)) {
+      SetBaseURIUsingFirstBaseWithHref(aDocument, this);
+    }
+    if (HasAttr(kNameSpaceID_None, nsGkAtoms::target)) {
+      SetBaseTargetUsingFirstBaseWithTarget(aDocument, this);
+    }
+  }
+
+  return NS_OK;
+}
+
+void
+HTMLSharedElement::UnbindFromTree(bool aDeep, bool aNullParent)
+{
+  nsIDocument* doc = GetUncomposedDoc();
+
+  nsGenericHTMLElement::UnbindFromTree(aDeep, aNullParent);
+
+  // If we're removing a <base> from a document, we may need to update the
+  // document's base URI and base target
+  if (doc && mNodeInfo->Equals(nsGkAtoms::base)) {
+    if (HasAttr(kNameSpaceID_None, nsGkAtoms::href)) {
+      SetBaseURIUsingFirstBaseWithHref(doc, nullptr);
+    }
+    if (HasAttr(kNameSpaceID_None, nsGkAtoms::target)) {
+      SetBaseTargetUsingFirstBaseWithTarget(doc, nullptr);
+    }
+  }
+}
+
+nsMapRuleToAttributesFunc
+HTMLSharedElement::GetAttributeMappingFunction() const
+{
+  if (mNodeInfo->Equals(nsGkAtoms::dir)) {
+    return &DirectoryMapAttributesIntoRule;
+  }
+
+  return nsGenericHTMLElement::GetAttributeMappingFunction();
+}
+
+JSObject*
+HTMLSharedElement::WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto)
+{
+  if (mNodeInfo->Equals(nsGkAtoms::param)) {
+    return HTMLParamElementBinding::Wrap(aCx, this, aGivenProto);
+  }
+  if (mNodeInfo->Equals(nsGkAtoms::base)) {
+    return HTMLBaseElementBinding::Wrap(aCx, this, aGivenProto);
+  }
+  if (mNodeInfo->Equals(nsGkAtoms::dir)) {
+    return HTMLDirectoryElementBinding::Wrap(aCx, this, aGivenProto);
+  }
+  if (mNodeInfo->Equals(nsGkAtoms::q) ||
+      mNodeInfo->Equals(nsGkAtoms::blockquote)) {
+    return HTMLQuoteElementBinding::Wrap(aCx, this, aGivenProto);
+  }
+  if (mNodeInfo->Equals(nsGkAtoms::head)) {
+    return HTMLHeadElementBinding::Wrap(aCx, this, aGivenProto);
+  }
+  MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::html));
+  return HTMLHtmlElementBinding::Wrap(aCx, this, aGivenProto);
+}
+
+} // namespace dom
+} // namespace mozilla