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// Copyright 2014 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 COMPONENTS_FAVICON_CORE_BROWSER_FAVICON_CLIENT_H_
#define COMPONENTS_FAVICON_CORE_BROWSER_FAVICON_CLIENT_H_
#include <vector>
#include "base/macros.h"
#include "base/task/cancelable_task_tracker.h"
#include "components/favicon_base/favicon_callback.h"
#include "components/keyed_service/core/keyed_service.h"
class GURL;
// This class abstracts operations that depend on the embedder's environment,
// e.g. Chrome.
class FaviconClient : public KeyedService {
public:
// Returns true if the specified URL is bookmarked.
virtual bool IsBookmarked(const GURL& url) = 0;
// Returns true if the specified URL is a native application page URL.
// If this returns true the favicon for the page must be fetched using
// GetFaviconForNativeApplicationURL().
virtual bool IsNativeApplicationURL(const GURL& url) = 0;
// Requests the favicon for a native application page URL for the sizes
// specified by |desired_sizes_in_pixel|. Returns a TaskId to use to cancel
// the request using |tracker| or kBadTaskId if the request cannot be
// scheduled. |callback| will be called with the favicon results.
virtual base::CancelableTaskTracker::TaskId GetFaviconForNativeApplicationURL(
const GURL& url,
const std::vector<int>& desired_sizes_in_pixel,
const favicon_base::FaviconResultsCallback& callback,
base::CancelableTaskTracker* tracker) = 0;
protected:
FaviconClient() {}
~FaviconClient() override {}
private:
DISALLOW_COPY_AND_ASSIGN(FaviconClient);
};
#endif // COMPONENTS_FAVICON_CORE_BROWSER_FAVICON_CLIENT_H_
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