| // 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 CHROME_BROWSER_DATA_USE_MEASUREMENT_DATA_USE_WEB_CONTENTS_OBSERVER_H_ |
| #define CHROME_BROWSER_DATA_USE_MEASUREMENT_DATA_USE_WEB_CONTENTS_OBSERVER_H_ |
| |
| #include "base/macros.h" |
| #include "content/public/browser/web_contents_observer.h" |
| #include "content/public/browser/web_contents_user_data.h" |
| |
| namespace content { |
| class NavigationHandle; |
| class RenderFrameHost; |
| } |
| |
| namespace data_use_measurement { |
| |
| class ChromeDataUseAscriberService; |
| |
| // Propagates navigation and frame events to ChromeDataUseAscriberService. |
| // We use this class instead of having ChromeDataUseAscriberService derive from |
| // WebContentsObserver because each instance of WebContents needs its own |
| // instance of WebContentsObserver, and ChromeDataUseAscriberService needs to |
| // observe all WebContents. |
| class DataUseWebContentsObserver |
| : public content::WebContentsObserver, |
| public content::WebContentsUserData<DataUseWebContentsObserver> { |
| public: |
| // Creates a DataUseWebContentsObserver for the given WebContents. |
| static void CreateForWebContents(content::WebContents* web_contents); |
| |
| ~DataUseWebContentsObserver() override; |
| |
| // WebContentsObserver implementation: |
| void RenderFrameCreated(content::RenderFrameHost* render_frame_host) override; |
| void RenderFrameDeleted(content::RenderFrameHost* render_frame_host) override; |
| void ReadyToCommitNavigation( |
| content::NavigationHandle* navigation_handle) override; |
| void OnVisibilityChanged(content::Visibility visibility) override; |
| void RenderFrameHostChanged(content::RenderFrameHost* old_host, |
| content::RenderFrameHost* new_host) override; |
| void DidFinishNavigation( |
| content::NavigationHandle* navigation_handle) override; |
| void DidFinishLoad(content::RenderFrameHost* render_frame_host, |
| const GURL& validated_url) override; |
| |
| private: |
| friend class content::WebContentsUserData<DataUseWebContentsObserver>; |
| DataUseWebContentsObserver(content::WebContents* web_contents, |
| ChromeDataUseAscriberService* service); |
| ChromeDataUseAscriberService* const service_; |
| |
| WEB_CONTENTS_USER_DATA_KEY_DECL(); |
| |
| DISALLOW_COPY_AND_ASSIGN(DataUseWebContentsObserver); |
| }; |
| |
| } // namespace data_use_measurement |
| |
| #endif // CHROME_BROWSER_DATA_USE_MEASUREMENT_DATA_USE_WEB_CONTENTS_OBSERVER_H_ |