446685f672
This was useful because nsRuleData in the old style system may not hold all the data, but the only subclass ServoSpecifiedValues is always able to hold any data, and thus passes NS_STYLE_INHERIT_MASK to mSIDS. Given this, this method and mSIDs seems to be useless and can be removed. MozReview-Commit-ID: 4vWcV4DRS2i
307 lines
10 KiB
C++
307 lines
10 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/HTMLSharedElement.h"
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#include "mozilla/dom/HTMLBaseElementBinding.h"
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#include "mozilla/dom/HTMLDirectoryElementBinding.h"
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#include "mozilla/dom/HTMLHeadElementBinding.h"
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#include "mozilla/dom/HTMLHtmlElementBinding.h"
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#include "mozilla/dom/HTMLParamElementBinding.h"
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#include "mozilla/dom/HTMLQuoteElementBinding.h"
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#include "mozilla/GenericSpecifiedValuesInlines.h"
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#include "nsAttrValueInlines.h"
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#include "nsStyleConsts.h"
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#include "nsMappedAttributes.h"
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#include "nsContentUtils.h"
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#include "nsIContentSecurityPolicy.h"
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#include "nsIURI.h"
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NS_IMPL_NS_NEW_HTML_ELEMENT(Shared)
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namespace mozilla {
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namespace dom {
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extern nsAttrValue::EnumTable kListTypeTable[];
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HTMLSharedElement::~HTMLSharedElement()
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{
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}
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NS_IMPL_ELEMENT_CLONE(HTMLSharedElement)
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void
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HTMLSharedElement::GetHref(nsAString& aValue)
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{
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MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::base),
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"This should only get called for <base> elements");
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nsAutoString href;
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GetAttr(kNameSpaceID_None, nsGkAtoms::href, href);
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nsCOMPtr<nsIURI> uri;
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nsIDocument* doc = OwnerDoc();
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nsContentUtils::NewURIWithDocumentCharset(
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getter_AddRefs(uri), href, doc, doc->GetFallbackBaseURI());
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if (!uri) {
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aValue = href;
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return;
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}
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nsAutoCString spec;
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uri->GetSpec(spec);
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CopyUTF8toUTF16(spec, aValue);
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}
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bool
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HTMLSharedElement::ParseAttribute(int32_t aNamespaceID,
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nsAtom* aAttribute,
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const nsAString& aValue,
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nsIPrincipal* aMaybeScriptedPrincipal,
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nsAttrValue& aResult)
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{
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if (aNamespaceID == kNameSpaceID_None &&
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mNodeInfo->Equals(nsGkAtoms::dir)) {
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if (aAttribute == nsGkAtoms::type) {
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return aResult.ParseEnumValue(aValue, mozilla::dom::kListTypeTable, false);
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}
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if (aAttribute == nsGkAtoms::start) {
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return aResult.ParseIntWithBounds(aValue, 1);
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}
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}
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return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
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aMaybeScriptedPrincipal, aResult);
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}
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static void
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DirectoryMapAttributesIntoRule(const nsMappedAttributes* aAttributes,
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GenericSpecifiedValues* aData)
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{
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if (!aData->PropertyIsSet(eCSSProperty_list_style_type)) {
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// type: enum
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const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::type);
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if (value) {
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if (value->Type() == nsAttrValue::eEnum) {
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aData->SetKeywordValue(eCSSProperty_list_style_type, value->GetEnumValue());
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} else {
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aData->SetKeywordValue(eCSSProperty_list_style_type, NS_STYLE_LIST_STYLE_DISC);
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}
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}
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}
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nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aData);
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}
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NS_IMETHODIMP_(bool)
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HTMLSharedElement::IsAttributeMapped(const nsAtom* aAttribute) const
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{
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if (mNodeInfo->Equals(nsGkAtoms::dir)) {
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static const MappedAttributeEntry attributes[] = {
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{ &nsGkAtoms::type },
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// { &nsGkAtoms::compact }, // XXX
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{ nullptr}
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};
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static const MappedAttributeEntry* const map[] = {
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attributes,
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sCommonAttributeMap,
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};
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return FindAttributeDependence(aAttribute, map);
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}
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return nsGenericHTMLElement::IsAttributeMapped(aAttribute);
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}
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static void
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SetBaseURIUsingFirstBaseWithHref(nsIDocument* aDocument, nsIContent* aMustMatch)
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{
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NS_PRECONDITION(aDocument, "Need a document!");
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for (nsIContent* child = aDocument->GetFirstChild(); child;
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child = child->GetNextNode()) {
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if (child->IsHTMLElement(nsGkAtoms::base) &&
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child->AsElement()->HasAttr(kNameSpaceID_None, nsGkAtoms::href)) {
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if (aMustMatch && child != aMustMatch) {
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return;
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}
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// Resolve the <base> element's href relative to our document's
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// fallback base URI.
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nsAutoString href;
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child->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::href, href);
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nsCOMPtr<nsIURI> newBaseURI;
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nsContentUtils::NewURIWithDocumentCharset(
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getter_AddRefs(newBaseURI), href, aDocument,
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aDocument->GetFallbackBaseURI());
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// Check if CSP allows this base-uri
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nsCOMPtr<nsIContentSecurityPolicy> csp;
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nsresult rv = aDocument->NodePrincipal()->GetCsp(getter_AddRefs(csp));
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NS_ASSERTION(NS_SUCCEEDED(rv), "Getting CSP Failed");
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// For all the different error cases we assign a nullptr to
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// newBaseURI, so we basically call aDocument->SetBaseURI(nullptr);
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if (NS_FAILED(rv)) {
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newBaseURI = nullptr;
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}
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if (csp && newBaseURI) {
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// base-uri is only enforced if explicitly defined in the
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// policy - do *not* consult default-src, see:
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// http://www.w3.org/TR/CSP2/#directive-default-src
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bool cspPermitsBaseURI = true;
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rv = csp->Permits(newBaseURI, nsIContentSecurityPolicy::BASE_URI_DIRECTIVE,
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true, &cspPermitsBaseURI);
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if (NS_FAILED(rv) || !cspPermitsBaseURI) {
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newBaseURI = nullptr;
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}
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}
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aDocument->SetBaseURI(newBaseURI);
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aDocument->SetChromeXHRDocBaseURI(nullptr);
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return;
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}
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}
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aDocument->SetBaseURI(nullptr);
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}
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static void
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SetBaseTargetUsingFirstBaseWithTarget(nsIDocument* aDocument,
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nsIContent* aMustMatch)
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{
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NS_PRECONDITION(aDocument, "Need a document!");
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for (nsIContent* child = aDocument->GetFirstChild(); child;
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child = child->GetNextNode()) {
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if (child->IsHTMLElement(nsGkAtoms::base) &&
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child->AsElement()->HasAttr(kNameSpaceID_None, nsGkAtoms::target)) {
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if (aMustMatch && child != aMustMatch) {
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return;
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}
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nsString target;
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child->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::target, target);
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aDocument->SetBaseTarget(target);
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return;
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}
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}
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aDocument->SetBaseTarget(EmptyString());
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}
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nsresult
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HTMLSharedElement::AfterSetAttr(int32_t aNamespaceID, nsAtom* aName,
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const nsAttrValue* aValue,
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const nsAttrValue* aOldValue,
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nsIPrincipal* aSubjectPrincipal,
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bool aNotify)
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{
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if (aNamespaceID == kNameSpaceID_None) {
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if (aName == nsGkAtoms::href) {
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// If the href attribute of a <base> tag is changing, we may need to
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// update the document's base URI, which will cause all the links on the
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// page to be re-resolved given the new base.
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// If the href is being unset (aValue is null), we will need to find a new
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// <base>.
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if (mNodeInfo->Equals(nsGkAtoms::base) && IsInUncomposedDoc()) {
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SetBaseURIUsingFirstBaseWithHref(GetUncomposedDoc(),
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aValue ? this : nullptr);
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}
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} else if (aName == nsGkAtoms::target) {
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// The target attribute is in pretty much the same situation as the href
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// attribute, above.
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if (mNodeInfo->Equals(nsGkAtoms::base) && IsInUncomposedDoc()) {
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SetBaseTargetUsingFirstBaseWithTarget(GetUncomposedDoc(),
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aValue ? this : nullptr);
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}
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}
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}
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return nsGenericHTMLElement::AfterSetAttr(aNamespaceID, aName, aValue,
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aOldValue, aSubjectPrincipal, aNotify);
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}
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nsresult
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HTMLSharedElement::BindToTree(nsIDocument* aDocument, nsIContent* aParent,
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nsIContent* aBindingParent,
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bool aCompileEventHandlers)
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{
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nsresult rv = nsGenericHTMLElement::BindToTree(aDocument, aParent,
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aBindingParent,
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aCompileEventHandlers);
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NS_ENSURE_SUCCESS(rv, rv);
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// The document stores a pointer to its base URI and base target, which we may
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// need to update here.
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if (mNodeInfo->Equals(nsGkAtoms::base) &&
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aDocument) {
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if (HasAttr(kNameSpaceID_None, nsGkAtoms::href)) {
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SetBaseURIUsingFirstBaseWithHref(aDocument, this);
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}
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if (HasAttr(kNameSpaceID_None, nsGkAtoms::target)) {
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SetBaseTargetUsingFirstBaseWithTarget(aDocument, this);
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}
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}
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return NS_OK;
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}
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void
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HTMLSharedElement::UnbindFromTree(bool aDeep, bool aNullParent)
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{
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nsIDocument* doc = GetUncomposedDoc();
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nsGenericHTMLElement::UnbindFromTree(aDeep, aNullParent);
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// If we're removing a <base> from a document, we may need to update the
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// document's base URI and base target
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if (doc && mNodeInfo->Equals(nsGkAtoms::base)) {
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if (HasAttr(kNameSpaceID_None, nsGkAtoms::href)) {
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SetBaseURIUsingFirstBaseWithHref(doc, nullptr);
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}
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if (HasAttr(kNameSpaceID_None, nsGkAtoms::target)) {
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SetBaseTargetUsingFirstBaseWithTarget(doc, nullptr);
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}
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}
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}
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nsMapRuleToAttributesFunc
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HTMLSharedElement::GetAttributeMappingFunction() const
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{
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if (mNodeInfo->Equals(nsGkAtoms::dir)) {
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return &DirectoryMapAttributesIntoRule;
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}
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return nsGenericHTMLElement::GetAttributeMappingFunction();
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}
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JSObject*
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HTMLSharedElement::WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto)
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{
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if (mNodeInfo->Equals(nsGkAtoms::param)) {
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return HTMLParamElementBinding::Wrap(aCx, this, aGivenProto);
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}
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if (mNodeInfo->Equals(nsGkAtoms::base)) {
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return HTMLBaseElementBinding::Wrap(aCx, this, aGivenProto);
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}
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if (mNodeInfo->Equals(nsGkAtoms::dir)) {
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return HTMLDirectoryElementBinding::Wrap(aCx, this, aGivenProto);
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}
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if (mNodeInfo->Equals(nsGkAtoms::q) ||
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mNodeInfo->Equals(nsGkAtoms::blockquote)) {
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return HTMLQuoteElementBinding::Wrap(aCx, this, aGivenProto);
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}
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if (mNodeInfo->Equals(nsGkAtoms::head)) {
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return HTMLHeadElementBinding::Wrap(aCx, this, aGivenProto);
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}
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MOZ_ASSERT(mNodeInfo->Equals(nsGkAtoms::html));
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return HTMLHtmlElementBinding::Wrap(aCx, this, aGivenProto);
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}
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} // namespace dom
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} // namespace mozilla
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