blob: 454790a23c9a5086cd6963944b53196ff7af7255 [file] [log] [blame]
// Copyright (c) 2012 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.
#include <string>
#include "base/callback.h"
#include "base/files/file_path.h"
#include "chrome/browser/icon_loader.h"
// Helper class for DownloadsGetFileIconFunction. Only used for a single icon
// extraction.
class DownloadFileIconExtractor {
// Callback for |ExtractIconForPath|. The parameter is a URL as a string for a
// suitable icon. The string could be empty if the icon could not be
// determined.
typedef base::Callback<void(const std::string&)> IconURLCallback;
virtual ~DownloadFileIconExtractor() {}
// Should return false if the request was invalid. If the return value is
// true, then |callback| should be called with the result.
virtual bool ExtractIconURLForPath(const base::FilePath& path,
float scale,
IconLoader::IconSize icon_size,
IconURLCallback callback) = 0;