OLD | NEW |
(Empty) | |
| 1 // Copyright 2017 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef CHROME_BROWSER_SYNC_SESSIONS_SYNC_SESSIONS_ROUTER_TAB_HELPER_H_ |
| 6 #define CHROME_BROWSER_SYNC_SESSIONS_SYNC_SESSIONS_ROUTER_TAB_HELPER_H_ |
| 7 |
| 8 #include "components/sessions/core/session_id.h" |
| 9 #include "content/public/browser/web_contents_observer.h" |
| 10 #include "content/public/browser/web_contents_user_data.h" |
| 11 |
| 12 namespace sync_sessions { |
| 13 |
| 14 class SyncSessionsWebContentsRouter; |
| 15 |
| 16 // TabHelper class that forwards tab-level WebContentsObserver events to a |
| 17 // (per-profile) sessions router. The router is responsible for forwarding |
| 18 // these events to sessions sync. This class also tracks the source tab id |
| 19 // of its corresponding tab, if available. |
| 20 // A TabHelper is a WebContentsObserver tied to the top level WebContents for a |
| 21 // browser tab. |
| 22 // https://chromium.googlesource.com/chromium/src/+/master/docs/tab_helpers.md |
| 23 class SyncSessionsRouterTabHelper |
| 24 : public content::WebContentsUserData<SyncSessionsRouterTabHelper>, |
| 25 public content::WebContentsObserver { |
| 26 public: |
| 27 ~SyncSessionsRouterTabHelper() override; |
| 28 |
| 29 static void CreateForWebContents( |
| 30 content::WebContents* web_contents, |
| 31 SyncSessionsWebContentsRouter* session_router); |
| 32 |
| 33 // Get the tab id of the tab responsible for creating the tab this helper |
| 34 // corresponds to. Returns -1 if there is no such tab. |
| 35 SessionID::id_type source_tab_id() const { return source_tab_id_; } |
| 36 |
| 37 private: |
| 38 friend class content::WebContentsUserData<SyncSessionsRouterTabHelper>; |
| 39 |
| 40 explicit SyncSessionsRouterTabHelper(content::WebContents* web_contents, |
| 41 SyncSessionsWebContentsRouter* router); |
| 42 |
| 43 // Set the tab id of the tab reponsible for creating the tab this helper |
| 44 // corresponds to. |
| 45 void set_source_tab_id(const SessionID::id_type id) { source_tab_id_ = id; } |
| 46 |
| 47 // WebContentsObserver implementation. |
| 48 void DidFinishNavigation( |
| 49 content::NavigationHandle* navigation_handle) override; |
| 50 void TitleWasSet(content::NavigationEntry* entry, bool explicit_set) override; |
| 51 void WebContentsDestroyed() override; |
| 52 void DidFinishLoad(content::RenderFrameHost* render_frame_host, |
| 53 const GURL& validated_url) override; |
| 54 void DidOpenRequestedURL(content::WebContents* new_contents, |
| 55 content::RenderFrameHost* source_render_frame_host, |
| 56 const GURL& url, |
| 57 const content::Referrer& referrer, |
| 58 WindowOpenDisposition disposition, |
| 59 ui::PageTransition transition, |
| 60 bool started_from_context_menu, |
| 61 bool renderer_initiated) override; |
| 62 |
| 63 void NotifyRouter(); |
| 64 |
| 65 // |router_| is a KeyedService and is guaranteed to outlive |this|. |
| 66 SyncSessionsWebContentsRouter* router_; |
| 67 // Tab id of the tab from which this tab was created. Example events that |
| 68 // create this relationship: |
| 69 // * From context menu, "Open link in new tab". |
| 70 // * From context menu, "Open link in new window". |
| 71 // * Ctrl-click. |
| 72 // * Click on a link with target='_blank'. |
| 73 SessionID::id_type source_tab_id_; |
| 74 |
| 75 DISALLOW_COPY_AND_ASSIGN(SyncSessionsRouterTabHelper); |
| 76 }; |
| 77 |
| 78 } // namespace sync_sessions |
| 79 |
| 80 #endif // CHROME_BROWSER_SYNC_SESSIONS_SYNC_SESSIONS_ROUTER_TAB_HELPER_H_ |
OLD | NEW |