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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_HISTORY_IOS_BROWSER_WEB_STATE_TOP_SITES_OBSERVER_H_
#define COMPONENTS_HISTORY_IOS_BROWSER_WEB_STATE_TOP_SITES_OBSERVER_H_
#include "base/macros.h"
#include "ios/web/public/web_state/web_state_observer.h"
#include "ios/web/public/web_state/web_state_user_data.h"
namespace history {
class TopSites;
// WebStateTopSitesObserver forwards navigation events from web::WebState to
// TopSites.
class WebStateTopSitesObserver
: public web::WebStateObserver,
public web::WebStateUserData<WebStateTopSitesObserver> {
public:
static void CreateForWebState(web::WebState* web_state, TopSites* top_sites);
private:
friend class web::WebStateUserData<WebStateTopSitesObserver>;
WebStateTopSitesObserver(web::WebState* web_state, TopSites* top_sites);
~WebStateTopSitesObserver() override;
// web::WebStateObserver implementation.
void NavigationItemCommitted(
const web::LoadCommittedDetails& load_details) override;
// Underlying TopSites instance, may be null during testing.
TopSites* top_sites_;
DISALLOW_COPY_AND_ASSIGN(WebStateTopSitesObserver);
};
} // namespace history
#endif // COMPONENTS_HISTORY_IOS_BROWSER_WEB_STATE_TOP_SITES_OBSERVER_H_
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