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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 THIRD_PARTY_BLINK_RENDERER_CORE_XML_XSL_STYLE_SHEET_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_XML_XSL_STYLE_SHEET_H_
#include <libxml/tree.h>
#include <libxslt/transform.h>
#include "base/memory/scoped_refptr.h"
#include "third_party/blink/renderer/core/css/style_sheet.h"
#include "third_party/blink/renderer/core/dom/processing_instruction.h"
#include "third_party/blink/renderer/platform/runtime_enabled_features.h"
#include "third_party/blink/renderer/platform/wtf/casting.h"
namespace blink {
class XSLStyleSheet final : public StyleSheet {
public:
XSLStyleSheet(Node* parent_node,
const String& original_url,
const KURL& final_url,
bool embedded);
// 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.
XSLStyleSheet(Document* owner_document,
Node* style_sheet_root_node,
const String& original_url,
const KURL& final_url,
bool embedded);
XSLStyleSheet(XSLStyleSheet* parent_style_sheet,
const String& original_url,
const KURL& final_url);
~XSLStyleSheet() override;
bool ParseString(const String&);
void CheckLoaded();
Document* OwnerDocument();
XSLStyleSheet* parentStyleSheet() const override {
return parent_style_sheet_;
}
xmlDocPtr GetDocument();
xsltStylesheetPtr CompileStyleSheet();
xmlDocPtr LocateStylesheetSubResource(xmlDocPtr parent_doc,
const xmlChar* uri);
void ClearDocuments();
void MarkAsProcessed();
bool Processed() const { return processed_; }
String type() const override { return "text/xml"; }
bool disabled() const override { return is_disabled_; }
void setDisabled(bool b) override { is_disabled_ = b; }
Node* ownerNode() const override { return owner_node_; }
String href() const override { return original_url_; }
String title() const override { return g_empty_string; }
void ClearOwnerNode() override { owner_node_ = nullptr; }
KURL BaseURL() const override { return final_url_; }
bool IsLoading() const override { return false; }
void Trace(Visitor*) override;
private:
void LoadChildSheets();
void LoadChildSheet(const String& href);
Member<Node> owner_node_;
String original_url_;
KURL final_url_;
bool is_disabled_;
HeapVector<Member<XSLStyleSheet>> children_;
bool embedded_;
bool processed_;
xmlDocPtr stylesheet_doc_;
bool stylesheet_doc_taken_;
bool compilation_failed_;
Member<XSLStyleSheet> parent_style_sheet_;
Member<Document> owner_document_;
};
template <>
struct DowncastTraits<XSLStyleSheet> {
static bool AllowFrom(const StyleSheet& sheet) {
return !sheet.IsCSSStyleSheet();
}
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_XML_XSL_STYLE_SHEET_H_
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