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// Copyright 2016 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_PREVIEWS_CORE_PREVIEWS_UI_SERVICE_H_
#define COMPONENTS_PREVIEWS_CORE_PREVIEWS_UI_SERVICE_H_
#include <string>
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "base/threading/thread_checker.h"
#include "base/time/time.h"
#include "components/previews/core/previews_experiments.h"
#include "components/previews/core/previews_opt_out_store.h"
class GURL;
namespace base {
class SingleThreadTaskRunner;
}
namespace previews {
class PreviewsIOData;
// A class to manage the UI portion of inter-thread communication between
// previews/ objects. Created and used on the UI thread.
class PreviewsUIService {
public:
PreviewsUIService(
PreviewsIOData* previews_io_data,
const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner,
std::unique_ptr<PreviewsOptOutStore> previews_opt_out_store);
virtual ~PreviewsUIService();
// Sets |io_data_| to |io_data| to allow calls from the UI thread to the IO
// thread. Virtualized in testing.
virtual void SetIOData(base::WeakPtr<PreviewsIOData> io_data);
// Adds a navigation to |url| to the black list with result |opt_out|.
void AddPreviewNavigation(const GURL& url, PreviewsType type, bool opt_out);
// Clears the history of the black list between |begin_time| and |end_time|.
void ClearBlackList(base::Time begin_time, base::Time end_time);
private:
// The IO thread portion of the inter-thread communication for previews/.
base::WeakPtr<previews::PreviewsIOData> io_data_;
base::ThreadChecker thread_checker_;
// The IO thread task runner. Used to post tasks to |io_data_|.
scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
base::WeakPtrFactory<PreviewsUIService> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(PreviewsUIService);
};
} // namespace previews
#endif // COMPONENTS_PREVIEWS_CORE_PREVIEWS_UI_SERVICE_H_
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