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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_ANDROID_OFFLINE_PAGES_OFFLINE_PAGE_MHTML_ARCHIVER_H_
#define CHROME_BROWSER_ANDROID_OFFLINE_PAGES_OFFLINE_PAGE_MHTML_ARCHIVER_H_
#include <stdint.h>
#include <map>
#include <string>
#include "base/callback.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "components/offline_pages/offline_page_archiver.h"
namespace base {
class FilePath;
class SingleThreadTaskRunner;
} // namespace base
namespace content {
class WebContents;
} // namespace content
namespace offline_pages {
// Class implementing an offline page archiver using MHTML as an archive format.
//
// To generate an MHTML archiver for a given URL, a WebContents instance should
// have that URL loaded.
//
// Example:
// void SavePageOffline(content::WebContents* web_contents) {
// const GURL& url = web_contents->GetLastCommittedURL();
// scoped_ptr<OfflinePageMHTMLArchiver> archiver(
// new OfflinePageMHTMLArchiver(
// web_contents, archive_dir));
// // Callback is of type OfflinePageModel::SavePageCallback.
// model->SavePage(url, std::move(archiver), callback);
// }
class OfflinePageMHTMLArchiver : public OfflinePageArchiver {
public:
// Returns the extension name of the offline page file.
static std::string GetFileNameExtension();
// Creates a file name for the archive file based on url and title. Public for
// testing.
static base::FilePath GenerateFileName(const GURL& url,
const std::string& title);
explicit OfflinePageMHTMLArchiver(content::WebContents* web_contents);
~OfflinePageMHTMLArchiver() override;
// OfflinePageArchiver implementation:
void CreateArchive(const base::FilePath& archives_dir,
const CreateArchiveCallback& callback) override;
protected:
// Allows to overload the archiver for testing.
OfflinePageMHTMLArchiver();
// Try to generate MHTML.
// Might be overridden for testing purpose.
virtual void GenerateMHTML(const base::FilePath& archives_dir);
// Callback for Generating MHTML.
void OnGenerateMHTMLDone(const GURL& url,
const base::FilePath& file_path,
int64_t file_size);
// Sends the result of archiving a page to the client that requested archive
// creation.
void ReportResult(ArchiverResult result,
const GURL& url,
const base::FilePath& file_path,
int64_t file_size);
void ReportFailure(ArchiverResult result);
private:
// Contents of the web page to be serialized. Not owned.
content::WebContents* web_contents_;
CreateArchiveCallback callback_;
base::WeakPtrFactory<OfflinePageMHTMLArchiver> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(OfflinePageMHTMLArchiver);
};
} // namespace offline_pages
#endif // CHROME_BROWSER_ANDROID_OFFLINE_PAGES_OFFLINE_PAGE_MHTML_ARCHIVER_H_
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