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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/XMLStylesheetProcessingInstructionBinding.h"
#include "nsContentUtils.h"
#include "nsNetUtil.h"
namespace mozilla {
namespace dom {
// nsISupports implementation
NS_INTERFACE_TABLE_HEAD_CYCLE_COLLECTION_INHERITED(XMLStylesheetProcessingInstruction)
NS_INTERFACE_TABLE_INHERITED(XMLStylesheetProcessingInstruction, nsIDOMNode,
nsIDOMProcessingInstruction,
nsIStyleSheetLinkingElement)
NS_INTERFACE_TABLE_TAIL_INHERITING(ProcessingInstruction)
NS_IMPL_ADDREF_INHERITED(XMLStylesheetProcessingInstruction,
ProcessingInstruction)
NS_IMPL_RELEASE_INHERITED(XMLStylesheetProcessingInstruction,
ProcessingInstruction)
NS_IMPL_CYCLE_COLLECTION_CLASS(XMLStylesheetProcessingInstruction)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(XMLStylesheetProcessingInstruction,
ProcessingInstruction)
tmp->nsStyleLinkElement::Traverse(cb);
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(XMLStylesheetProcessingInstruction,
ProcessingInstruction)
tmp->nsStyleLinkElement::Unlink();
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
XMLStylesheetProcessingInstruction::~XMLStylesheetProcessingInstruction()
{
}
JSObject*
XMLStylesheetProcessingInstruction::WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto)
{
return XMLStylesheetProcessingInstructionBinding::Wrap(aCx, this, aGivenProto);
}
// nsIContent
nsresult
XMLStylesheetProcessingInstruction::BindToTree(nsIDocument* aDocument,
nsIContent* aParent,
nsIContent* aBindingParent,
bool aCompileEventHandlers)
{
nsresult rv = ProcessingInstruction::BindToTree(aDocument, aParent,
aBindingParent,
aCompileEventHandlers);
NS_ENSURE_SUCCESS(rv, rv);
void (XMLStylesheetProcessingInstruction::*update)() =
&XMLStylesheetProcessingInstruction::UpdateStyleSheetInternal;
nsContentUtils::AddScriptRunner(NewRunnableMethod(this, update));
return rv;
}
void
XMLStylesheetProcessingInstruction::UnbindFromTree(bool aDeep, bool aNullParent)
{
nsCOMPtr<nsIDocument> oldDoc = GetUncomposedDoc();
ProcessingInstruction::UnbindFromTree(aDeep, aNullParent);
UpdateStyleSheetInternal(oldDoc, nullptr);
}
// nsIDOMNode
void
XMLStylesheetProcessingInstruction::SetNodeValueInternal(const nsAString& aNodeValue,
ErrorResult& aError)
{
nsGenericDOMDataNode::SetNodeValueInternal(aNodeValue, aError);
if (!aError.Failed()) {
UpdateStyleSheetInternal(nullptr, nullptr, true);
}
}
// nsStyleLinkElement
NS_IMETHODIMP
XMLStylesheetProcessingInstruction::GetCharset(nsAString& aCharset)
{
return GetAttrValue(nsGkAtoms::charset, aCharset) ? NS_OK : NS_ERROR_FAILURE;
}
/* virtual */ void
XMLStylesheetProcessingInstruction::OverrideBaseURI(nsIURI* aNewBaseURI)
{
mOverriddenBaseURI = aNewBaseURI;
}
already_AddRefed<nsIURI>
XMLStylesheetProcessingInstruction::GetStyleSheetURL(bool* aIsInline)
{
*aIsInline = false;
nsAutoString href;
if (!GetAttrValue(nsGkAtoms::href, href)) {
return nullptr;
}
nsIURI *baseURL;
nsAutoCString charset;
nsIDocument *document = OwnerDoc();
baseURL = mOverriddenBaseURI ?
mOverriddenBaseURI.get() :
document->GetDocBaseURI();
charset = document->GetDocumentCharacterSet();
nsCOMPtr<nsIURI> aURI;
NS_NewURI(getter_AddRefs(aURI), href, charset.get(), baseURL);
return aURI.forget();
}
void
XMLStylesheetProcessingInstruction::GetStyleSheetInfo(nsAString& aTitle,
nsAString& aType,
nsAString& aMedia,
bool* aIsScoped,
bool* aIsAlternate,
bool* aIsExplicitlyEnabled)
{
aTitle.Truncate();
aType.Truncate();
aMedia.Truncate();
*aIsScoped = false;
*aIsAlternate = false;
*aIsExplicitlyEnabled = false;
// xml-stylesheet PI is special only in prolog
if (!nsContentUtils::InProlog(this)) {
return;
}
nsAutoString data;
GetData(data);
nsContentUtils::GetPseudoAttributeValue(data, nsGkAtoms::title, aTitle);
nsAutoString alternate;
nsContentUtils::GetPseudoAttributeValue(data,
nsGkAtoms::alternate,
alternate);
// if alternate, does it have title?
if (alternate.EqualsLiteral("yes")) {
if (aTitle.IsEmpty()) { // alternates must have title
return;
}
*aIsAlternate = true;
}
nsContentUtils::GetPseudoAttributeValue(data, nsGkAtoms::media, aMedia);
nsAutoString type;
nsContentUtils::GetPseudoAttributeValue(data, nsGkAtoms::type, type);
nsAutoString mimeType, notUsed;
nsContentUtils::SplitMimeType(type, mimeType, notUsed);
if (!mimeType.IsEmpty() && !mimeType.LowerCaseEqualsLiteral("text/css")) {
aType.Assign(type);
return;
}
// If we get here we assume that we're loading a css file, so set the
// type to 'text/css'
aType.AssignLiteral("text/css");
return;
}
nsGenericDOMDataNode*
XMLStylesheetProcessingInstruction::CloneDataNode(mozilla::dom::NodeInfo *aNodeInfo,
bool aCloneText) const
{
nsAutoString data;
nsGenericDOMDataNode::GetData(data);
RefPtr<mozilla::dom::NodeInfo> ni = aNodeInfo;
return new XMLStylesheetProcessingInstruction(ni.forget(), data);
}
} // namespace dom
} // namespace mozilla
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