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/* -*- 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 "XMLStylesheetProcessingInstruction.h"
#include "mozilla/dom/Document.h"
#include "mozilla/dom/FetchPriority.h"
#include "mozilla/dom/ReferrerInfo.h"
#include "nsContentUtils.h"
#include "nsNetUtil.h"
namespace mozilla::dom {
// nsISupports implementation
NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED_0(
XMLStylesheetProcessingInstruction, ProcessingInstruction)
NS_IMPL_CYCLE_COLLECTION_CLASS(XMLStylesheetProcessingInstruction)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(
XMLStylesheetProcessingInstruction, ProcessingInstruction)
tmp->LinkStyle::Traverse(cb);
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(
XMLStylesheetProcessingInstruction, ProcessingInstruction)
tmp->LinkStyle::Unlink();
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
XMLStylesheetProcessingInstruction::~XMLStylesheetProcessingInstruction() =
default;
// nsIContent
nsresult XMLStylesheetProcessingInstruction::BindToTree(BindContext& aContext,
nsINode& aParent) {
nsresult rv = ProcessingInstruction::BindToTree(aContext, aParent);
NS_ENSURE_SUCCESS(rv, rv);
void (XMLStylesheetProcessingInstruction::*update)() =
&XMLStylesheetProcessingInstruction::UpdateStyleSheetInternal;
nsContentUtils::AddScriptRunner(NewRunnableMethod(
"dom::XMLStylesheetProcessingInstruction::BindToTree", this, update));
return rv;
}
void XMLStylesheetProcessingInstruction::UnbindFromTree(
UnbindContext& aContext) {
nsCOMPtr<Document> oldDoc = GetUncomposedDoc();
ProcessingInstruction::UnbindFromTree(aContext);
Unused << UpdateStyleSheetInternal(oldDoc, nullptr);
}
// nsINode
void XMLStylesheetProcessingInstruction::SetNodeValueInternal(
const nsAString& aNodeValue, ErrorResult& aError) {
CharacterData::SetNodeValueInternal(aNodeValue, aError);
if (!aError.Failed()) {
Unused << UpdateStyleSheetInternal(nullptr, nullptr, ForceUpdate::Yes);
}
}
// LinkStyle
void XMLStylesheetProcessingInstruction::GetCharset(nsAString& aCharset) {
if (!GetAttrValue(nsGkAtoms::charset, aCharset)) {
aCharset.Truncate();
}
}
void XMLStylesheetProcessingInstruction::OverrideBaseURI(nsIURI* aNewBaseURI) {
mOverriddenBaseURI = aNewBaseURI;
}
Maybe<LinkStyle::SheetInfo>
XMLStylesheetProcessingInstruction::GetStyleSheetInfo() {
// xml-stylesheet PI is special only in prolog
if (!nsContentUtils::InProlog(this)) {
return Nothing();
}
nsAutoString href;
if (!GetAttrValue(nsGkAtoms::href, href)) {
return Nothing();
}
nsAutoString data;
GetData(data);
nsAutoString title;
nsContentUtils::GetPseudoAttributeValue(data, nsGkAtoms::title, title);
nsAutoString alternateAttr;
nsContentUtils::GetPseudoAttributeValue(data, nsGkAtoms::alternate,
alternateAttr);
bool alternate = alternateAttr.EqualsLiteral("yes");
if (alternate && title.IsEmpty()) {
// alternates must have title
return Nothing();
}
nsAutoString media;
nsContentUtils::GetPseudoAttributeValue(data, nsGkAtoms::media, media);
// Make sure the type handling here matches
// nsXMLContentSink::HandleProcessingInstruction
nsAutoString type;
nsContentUtils::GetPseudoAttributeValue(data, nsGkAtoms::type, type);
nsAutoString mimeType, notUsed;
nsContentUtils::SplitMimeType(type, mimeType, notUsed);
if (!mimeType.IsEmpty() && !mimeType.LowerCaseEqualsLiteral("text/css")) {
return Nothing();
}
Document* doc = OwnerDoc();
nsIURI* baseURL =
mOverriddenBaseURI ? mOverriddenBaseURI.get() : doc->GetDocBaseURI();
auto encoding = doc->GetDocumentCharacterSet();
nsCOMPtr<nsIURI> uri;
NS_NewURI(getter_AddRefs(uri), href, encoding, baseURL);
return Some(SheetInfo{
*doc,
this,
uri.forget(),
nullptr,
MakeAndAddRef<ReferrerInfo>(*doc),
CORS_NONE,
title,
media,
/* integrity = */ u""_ns,
/* nonce = */ u""_ns,
alternate ? HasAlternateRel::Yes : HasAlternateRel::No,
IsInline::No,
IsExplicitlyEnabled::No,
FetchPriority::Auto,
});
}
already_AddRefed<CharacterData>
XMLStylesheetProcessingInstruction::CloneDataNode(
mozilla::dom::NodeInfo* aNodeInfo, bool aCloneText) const {
nsAutoString data;
GetData(data);
RefPtr<mozilla::dom::NodeInfo> ni = aNodeInfo;
auto* nim = ni->NodeInfoManager();
return do_AddRef(new (nim)
XMLStylesheetProcessingInstruction(ni.forget(), data));
}
} // namespace mozilla::dom
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