| // Copyright 2020 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_CHROMEOS_POLICY_DLP_DLP_CONTENT_TAB_HELPER_H_ |
| #define CHROME_BROWSER_CHROMEOS_POLICY_DLP_DLP_CONTENT_TAB_HELPER_H_ |
| |
| #include "base/containers/flat_set.h" |
| #include "content/public/browser/visibility.h" |
| #include "content/public/browser/web_contents_observer.h" |
| #include "content/public/browser/web_contents_user_data.h" |
| |
| namespace content { |
| class NavigationHandle; |
| class RenderFrameHost; |
| class WebContents; |
| } // namespace content |
| |
| namespace policy { |
| |
| // DlpContentTabHelper attaches to relevant WebContents that are covered by |
| // DLP (Data Leak Prevention) feature and observes navigation in all sub-frames |
| // as well as visibility of the WebContents and reports it to system-wide |
| // DlpContentManager. |
| // WebContents is considered as confidential if either the main frame or any |
| // of sub-frames are confidential according to the current policy. |
| class DlpContentTabHelper |
| : public content::WebContentsUserData<DlpContentTabHelper>, |
| public content::WebContentsObserver { |
| public: |
| ~DlpContentTabHelper() override; |
| |
| // content::WebContentsObserver: |
| void RenderFrameCreated(content::RenderFrameHost* render_frame_host) override; |
| void RenderFrameDeleted(content::RenderFrameHost* render_frame_host) override; |
| void DidFinishNavigation( |
| content::NavigationHandle* navigation_handle) override; |
| void WebContentsDestroyed() override; |
| void OnVisibilityChanged(content::Visibility visibility) override; |
| |
| private: |
| friend class content::WebContentsUserData<DlpContentTabHelper>; |
| |
| explicit DlpContentTabHelper(content::WebContents* web_contents); |
| DlpContentTabHelper(const DlpContentTabHelper&) = delete; |
| DlpContentTabHelper& operator=(const DlpContentTabHelper&) = delete; |
| |
| // WebContents is considered as confidential if either the main frame or any |
| // of sub-frames are confidential. |
| bool IsConfidential() const; |
| |
| // Set of the currently known confidential frames. |
| base::flat_set<content::RenderFrameHost*> confidential_frames_; |
| |
| WEB_CONTENTS_USER_DATA_KEY_DECL(); |
| }; |
| |
| } // namespace policy |
| |
| #endif // CHROME_BROWSER_CHROMEOS_POLICY_DLP_DLP_CONTENT_TAB_HELPER_H_ |