| // Copyright (c) 2012 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 CHROME_BROWSER_HISTORY_HISTORY_TAB_HELPER_H_ |
| #define CHROME_BROWSER_HISTORY_HISTORY_TAB_HELPER_H_ |
| |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/time/time.h" |
| #include "content/public/browser/web_contents_observer.h" |
| #include "content/public/browser/web_contents_user_data.h" |
| |
| namespace history { |
| struct HistoryAddPageArgs; |
| class HistoryService; |
| } |
| |
| class HistoryTabHelper : public content::WebContentsObserver, |
| public content::WebContentsUserData<HistoryTabHelper> { |
| public: |
| ~HistoryTabHelper() override; |
| |
| // Updates history with the specified navigation. This is called by |
| // OnMsgNavigate to update history state. |
| void UpdateHistoryForNavigation( |
| const history::HistoryAddPageArgs& add_page_args); |
| |
| // Returns the history::HistoryAddPageArgs to use for adding a page to |
| // history. |
| history::HistoryAddPageArgs CreateHistoryAddPageArgs( |
| const GURL& virtual_url, |
| base::Time timestamp, |
| int nav_entry_id, |
| content::NavigationHandle* navigation_handle); |
| |
| private: |
| explicit HistoryTabHelper(content::WebContents* web_contents); |
| friend class content::WebContentsUserData<HistoryTabHelper>; |
| |
| // content::WebContentsObserver implementation. |
| void DidFinishNavigation( |
| content::NavigationHandle* navigation_handle) override; |
| void DidFinishLoad(content::RenderFrameHost* render_frame_host, |
| const GURL& validated_url) override; |
| void TitleWasSet(content::NavigationEntry* entry) override; |
| void WebContentsDestroyed() override; |
| |
| // Helper function to return the history service. May return null. |
| history::HistoryService* GetHistoryService(); |
| |
| // True after navigation to a page is complete and the page is currently |
| // loading. Only applies to the main frame of the page. |
| bool is_loading_ = false; |
| |
| // The time that the current page finished loading. Only title changes within |
| // a certain time period after the page load is complete will be saved to the |
| // history system. Only applies to the main frame of the page. |
| base::TimeTicks last_load_completion_; |
| |
| DISALLOW_COPY_AND_ASSIGN(HistoryTabHelper); |
| }; |
| |
| #endif // CHROME_BROWSER_HISTORY_HISTORY_TAB_HELPER_H_ |