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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 COMPONENTS_OPEN_FROM_CLIPBOARD_CLIPBOARD_RECENT_CONTENT_H_
#define COMPONENTS_OPEN_FROM_CLIPBOARD_CLIPBOARD_RECENT_CONTENT_H_
#include <string>
#include "base/macros.h"
#include "base/time/time.h"
class GURL;
// Helper class returning an URL if the content of the clipboard can be turned
// into an URL, and if it estimates that the content of the clipboard is not too
// old.
class ClipboardRecentContent {
public:
ClipboardRecentContent();
virtual ~ClipboardRecentContent();
// Returns the global instance of the ClipboardRecentContent singleton. This
// method does *not* create the singleton and will return null if no instance
// was registered via SetInstance().
static ClipboardRecentContent* GetInstance();
// Sets the global instance of ClipboardRecentContent singleton.
static void SetInstance(ClipboardRecentContent* instance);
// Returns true if the clipboard contains a recent URL that has not been
// supressed, and copies it in |url|. Otherwise, returns false. |url| must not
// be null.
virtual bool GetRecentURLFromClipboard(GURL* url) const = 0;
// Reports that the URL contained in the pasteboard was displayed.
virtual void RecentURLDisplayed() = 0;
// Returns how old the content of the clipboard is.
virtual base::TimeDelta GetClipboardContentAge() const = 0;
// Prevent GetRecentURLFromClipboard from returning anything until the
// clipboard's content changed.
virtual void SuppressClipboardContent() = 0;
private:
DISALLOW_COPY_AND_ASSIGN(ClipboardRecentContent);
};
#endif // COMPONENTS_OPEN_FROM_CLIPBOARD_CLIPBOARD_RECENT_CONTENT_H_
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