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/*
* This file is part of the XSL implementation.
*
* Copyright (C) 2004, 2006, 2008, 2012 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef XSLStyleSheet_h
#define XSLStyleSheet_h
#include "core/css/StyleSheet.h"
#include "core/dom/ProcessingInstruction.h"
#include "platform/RuntimeEnabledFeatures.h"
#include "wtf/PassRefPtr.h"
#include <libxml/tree.h>
#include <libxslt/transform.h>
namespace blink {
class XSLImportRule;
class XSLStyleSheet final : public StyleSheet {
public:
static XSLStyleSheet* create(XSLImportRule* parentImport,
const String& originalURL,
const KURL& finalURL) {
DCHECK(RuntimeEnabledFeatures::xsltEnabled());
return new XSLStyleSheet(parentImport, originalURL, finalURL);
}
static XSLStyleSheet* create(ProcessingInstruction* parentNode,
const String& originalURL,
const KURL& finalURL) {
DCHECK(RuntimeEnabledFeatures::xsltEnabled());
return new XSLStyleSheet(parentNode, originalURL, finalURL, false);
}
static XSLStyleSheet* createEmbedded(ProcessingInstruction* parentNode,
const KURL& finalURL) {
DCHECK(RuntimeEnabledFeatures::xsltEnabled());
return new XSLStyleSheet(parentNode, finalURL.getString(), finalURL, true);
}
// Taking an arbitrary node is unsafe, because owner node pointer can become
// stale. XSLTProcessor ensures that the stylesheet doesn't outlive its
// parent, in part by not exposing it to JavaScript.
static XSLStyleSheet* createForXSLTProcessor(Document* document,
Node* stylesheetRootNode,
const String& originalURL,
const KURL& finalURL) {
DCHECK(RuntimeEnabledFeatures::xsltEnabled());
return new XSLStyleSheet(document, stylesheetRootNode, originalURL,
finalURL, false);
}
~XSLStyleSheet() override;
bool parseString(const String&);
void checkLoaded();
const KURL& finalURL() const { return m_finalURL; }
void loadChildSheets();
void loadChildSheet(const String& href);
Document* ownerDocument();
XSLStyleSheet* parentStyleSheet() const override {
return m_parentStyleSheet;
}
void setParentStyleSheet(XSLStyleSheet*);
xmlDocPtr document();
xsltStylesheetPtr compileStyleSheet();
xmlDocPtr locateStylesheetSubResource(xmlDocPtr parentDoc,
const xmlChar* uri);
void clearDocuments();
void markAsProcessed();
bool processed() const { return m_processed; }
String type() const override { return "text/xml"; }
bool disabled() const override { return m_isDisabled; }
void setDisabled(bool b) override { m_isDisabled = b; }
Node* ownerNode() const override { return m_ownerNode; }
String href() const override { return m_originalURL; }
String title() const override { return emptyString(); }
void clearOwnerNode() override { m_ownerNode = nullptr; }
KURL baseURL() const override { return m_finalURL; }
bool isLoading() const override;
DECLARE_VIRTUAL_TRACE();
private:
XSLStyleSheet(Node* parentNode,
const String& originalURL,
const KURL& finalURL,
bool embedded);
XSLStyleSheet(Document* ownerDocument,
Node* styleSheetRootNode,
const String& originalURL,
const KURL& finalURL,
bool embedded);
XSLStyleSheet(XSLImportRule* parentImport,
const String& originalURL,
const KURL& finalURL);
Member<Node> m_ownerNode;
String m_originalURL;
KURL m_finalURL;
bool m_isDisabled;
HeapVector<Member<XSLImportRule>> m_children;
bool m_embedded;
bool m_processed;
xmlDocPtr m_stylesheetDoc;
bool m_stylesheetDocTaken;
bool m_compilationFailed;
Member<XSLStyleSheet> m_parentStyleSheet;
Member<Document> m_ownerDocument;
};
DEFINE_TYPE_CASTS(XSLStyleSheet,
StyleSheet,
sheet,
!sheet->isCSSStyleSheet(),
!sheet.isCSSStyleSheet());
} // namespace blink
#endif // XSLStyleSheet_h
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