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// Copyright (c) 2010 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_BOOKMARKS_BOOKMARK_HTML_WRITER_H_
#define CHROME_BROWSER_BOOKMARKS_BOOKMARK_HTML_WRITER_H_
#include <list>
#include <map>
#include <string>
#include "base/ref_counted.h"
#include "base/values.h"
#include "chrome/browser/history/history.h"
#include "chrome/common/notification_registrar.h"
#include "net/base/file_stream.h"
class BookmarkModel;
class BookmarkNode;
class DictionaryValue;
class FilePath;
class GURL;
class Profile;
// Observer for bookmark html output. Used only in tests.
class BookmarksExportObserver {
public:
// Is invoked on the IO thread.
virtual void OnExportFinished() = 0;
protected:
virtual ~BookmarksExportObserver() {}
};
// Class that fetches favicons for list of bookmarks and
// then starts Writer which outputs bookmarks and favicons to html file.
// Should be used only by WriteBookmarks function.
class BookmarkFaviconFetcher: public NotificationObserver {
public:
// Map of URL and corresponding favicons.
typedef std::map<std::string, scoped_refptr<RefCountedMemory> > URLFaviconMap;
BookmarkFaviconFetcher(Profile* profile,
const FilePath& path,
BookmarksExportObserver* observer);
~BookmarkFaviconFetcher();
// Executes bookmark export process.
void ExportBookmarks();
// NotificationObserver implementation.
virtual void Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details);
private:
// Recursively extracts URLs from bookmarks.
void ExtractUrls(const BookmarkNode* node);
// Executes Writer task that writes bookmarks data to html file.
void ExecuteWriter();
// Starts async fetch for the next bookmark favicon.
// Takes single url from bookmark_urls_ and removes it from the list.
// Returns true if there are more favicons to extract.
bool FetchNextFavicon();
// Favicon fetch callback. After all favicons are fetched executes
// html output on the file thread.
void OnFavIconDataAvailable(FaviconService::Handle handle,
bool know_favicon,
scoped_refptr<RefCountedMemory> data,
bool expired,
GURL icon_url);
// The Profile object used for accessing FaviconService, bookmarks model.
Profile* profile_;
// All URLs that are extracted from bookmarks. Used to fetch favicons
// for each of them. After favicon is fetched top url is removed from list.
std::list<std::string> bookmark_urls_;
// Consumer for requesting favicons.
CancelableRequestConsumer fav_icon_consumer_;
// Map that stores favicon per URL.
scoped_ptr<URLFaviconMap> favicons_map_;
// Path where html output is stored.
FilePath path_;
BookmarksExportObserver* observer_;
NotificationRegistrar registrar_;
DISALLOW_COPY_AND_ASSIGN(BookmarkFaviconFetcher);
};
namespace bookmark_html_writer {
// Writes the bookmarks out in the 'bookmarks.html' format understood by
// Firefox and IE. The results are written to the file at |path|. The file
// thread is used.
// Before writing to the file favicons are fetched on the main thread.
// TODO(sky): need a callback on failure.
void WriteBookmarks(Profile* profile,
const FilePath& path,
BookmarksExportObserver* observer);
} // namespace bookmark_html_writer
#endif // CHROME_BROWSER_BOOKMARKS_BOOKMARK_HTML_WRITER_H_
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