| // 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: |
| ~WebStateTopSitesObserver() override; |
| |
| static void CreateForWebState(web::WebState* web_state, TopSites* top_sites); |
| |
| private: |
| friend class web::WebStateUserData<WebStateTopSitesObserver>; |
| |
| WebStateTopSitesObserver(web::WebState* web_state, TopSites* top_sites); |
| |
| // web::WebStateObserver implementation. |
| void NavigationItemCommitted( |
| web::WebState* web_state, |
| const web::LoadCommittedDetails& load_details) override; |
| void WebStateDestroyed(web::WebState* web_state) 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_ |