зеркало из https://github.com/mozilla/gecko-dev.git
154 строки
4.7 KiB
C++
154 строки
4.7 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 "XMLStylesheetProcessingInstruction.h"
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#include "nsContentUtils.h"
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#include "nsNetUtil.h"
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namespace mozilla {
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namespace dom {
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// nsISupports implementation
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NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED(XMLStylesheetProcessingInstruction,
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ProcessingInstruction,
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nsIStyleSheetLinkingElement)
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NS_IMPL_CYCLE_COLLECTION_CLASS(XMLStylesheetProcessingInstruction)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(
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XMLStylesheetProcessingInstruction, ProcessingInstruction)
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tmp->nsStyleLinkElement::Traverse(cb);
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(
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XMLStylesheetProcessingInstruction, ProcessingInstruction)
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tmp->nsStyleLinkElement::Unlink();
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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XMLStylesheetProcessingInstruction::~XMLStylesheetProcessingInstruction() {}
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// nsIContent
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nsresult XMLStylesheetProcessingInstruction::BindToTree(
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Document* aDocument, nsIContent* aParent, nsIContent* aBindingParent) {
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nsresult rv =
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ProcessingInstruction::BindToTree(aDocument, aParent, aBindingParent);
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NS_ENSURE_SUCCESS(rv, rv);
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void (XMLStylesheetProcessingInstruction::*update)() =
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&XMLStylesheetProcessingInstruction::UpdateStyleSheetInternal;
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nsContentUtils::AddScriptRunner(NewRunnableMethod(
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"dom::XMLStylesheetProcessingInstruction::BindToTree", this, update));
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return rv;
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}
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void XMLStylesheetProcessingInstruction::UnbindFromTree(bool aDeep,
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bool aNullParent) {
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nsCOMPtr<Document> oldDoc = GetUncomposedDoc();
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ProcessingInstruction::UnbindFromTree(aDeep, aNullParent);
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Unused << UpdateStyleSheetInternal(oldDoc, nullptr);
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}
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// nsINode
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void XMLStylesheetProcessingInstruction::SetNodeValueInternal(
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const nsAString& aNodeValue, ErrorResult& aError) {
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CharacterData::SetNodeValueInternal(aNodeValue, aError);
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if (!aError.Failed()) {
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Unused << UpdateStyleSheetInternal(nullptr, nullptr, ForceUpdate::Yes);
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}
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}
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// nsStyleLinkElement
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void XMLStylesheetProcessingInstruction::GetCharset(nsAString& aCharset) {
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if (!GetAttrValue(nsGkAtoms::charset, aCharset)) {
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aCharset.Truncate();
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}
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}
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/* virtual */
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void XMLStylesheetProcessingInstruction::OverrideBaseURI(nsIURI* aNewBaseURI) {
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mOverriddenBaseURI = aNewBaseURI;
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}
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Maybe<nsStyleLinkElement::SheetInfo>
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XMLStylesheetProcessingInstruction::GetStyleSheetInfo() {
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// xml-stylesheet PI is special only in prolog
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if (!nsContentUtils::InProlog(this)) {
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return Nothing();
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}
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nsAutoString href;
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if (!GetAttrValue(nsGkAtoms::href, href)) {
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return Nothing();
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}
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nsAutoString data;
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GetData(data);
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nsAutoString title;
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nsContentUtils::GetPseudoAttributeValue(data, nsGkAtoms::title, title);
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nsAutoString alternateAttr;
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nsContentUtils::GetPseudoAttributeValue(data, nsGkAtoms::alternate,
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alternateAttr);
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bool alternate = alternateAttr.EqualsLiteral("yes");
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if (alternate && title.IsEmpty()) {
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// alternates must have title
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return Nothing();
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}
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nsAutoString media;
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nsContentUtils::GetPseudoAttributeValue(data, nsGkAtoms::media, media);
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// Make sure the type handling here matches
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// nsXMLContentSink::HandleProcessingInstruction
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nsAutoString type;
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nsContentUtils::GetPseudoAttributeValue(data, nsGkAtoms::type, type);
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nsAutoString mimeType, notUsed;
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nsContentUtils::SplitMimeType(type, mimeType, notUsed);
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if (!mimeType.IsEmpty() && !mimeType.LowerCaseEqualsLiteral("text/css")) {
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return Nothing();
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}
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Document* doc = OwnerDoc();
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nsIURI* baseURL =
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mOverriddenBaseURI ? mOverriddenBaseURI.get() : doc->GetDocBaseURI();
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auto encoding = doc->GetDocumentCharacterSet();
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nsCOMPtr<nsIURI> uri;
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NS_NewURI(getter_AddRefs(uri), href, encoding, baseURL);
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return Some(SheetInfo{
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*doc,
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this,
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uri.forget(),
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nullptr,
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net::RP_Unset,
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CORS_NONE,
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title,
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media,
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alternate ? HasAlternateRel::Yes : HasAlternateRel::No,
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IsInline::No,
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});
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}
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already_AddRefed<CharacterData>
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XMLStylesheetProcessingInstruction::CloneDataNode(
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mozilla::dom::NodeInfo* aNodeInfo, bool aCloneText) const {
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nsAutoString data;
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GetData(data);
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RefPtr<mozilla::dom::NodeInfo> ni = aNodeInfo;
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return do_AddRef(new XMLStylesheetProcessingInstruction(ni.forget(), data));
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}
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} // namespace dom
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} // namespace mozilla
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