chrome/browser/ui/android/tab_model/tab_model.h

   1 // Copyright (c) 2012 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_UI_ANDROID_TAB_MODEL_TAB_MODEL_H_
   6 #define CHROME_BROWSER_UI_ANDROID_TAB_MODEL_TAB_MODEL_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "chrome/browser/ui/toolbar/toolbar_model_delegate.h"
  10 #include "components/sessions/session_id.h"
  11 #include "components/sync_driver/glue/synced_window_delegate.h"
  12 #include "components/toolbar/toolbar_model.h"
  13 #include "content/public/browser/notification_observer.h"
  14 #include "content/public/browser/notification_registrar.h"
  15
  16 namespace browser_sync {
  17 class SyncedWindowDelegate;
  18 class SyncedWindowDelegateAndroid;
  19 }
  20
  21 namespace content {
  22 class WebContents;
  23 }
  24
  25 class Profile;
  26 class TabAndroid;
  27
  28 // Abstract representation of a Tab Model for Android.  Since Android does
  29 // not use Browser/BrowserList, this is required to allow Chrome to interact
  30 // with Android's Tabs and Tab Model.
  31 class TabModel : public content::NotificationObserver {
  32  public:
  33   virtual Profile* GetProfile() const;
  34   virtual bool IsOffTheRecord() const;
  35   virtual browser_sync::SyncedWindowDelegate* GetSyncedWindowDelegate() const;
  36   virtual SessionID::id_type GetSessionId() const;
  37
  38   virtual int GetTabCount() const = 0;
  39   virtual int GetActiveIndex() const = 0;
  40   virtual content::WebContents* GetActiveWebContents() const;
  41   virtual content::WebContents* GetWebContentsAt(int index) const = 0;
  42   // This will return NULL if the tab has not yet been initialized.
  43   virtual TabAndroid* GetTabAt(int index) const = 0;
  44
  45   virtual void SetActiveIndex(int index) = 0;
  46   virtual void CloseTabAt(int index) = 0;
  47
  48   // Used for restoring tabs from synced foreign sessions.
  49   virtual void CreateTab(content::WebContents* web_contents,
  50                          int parent_tab_id) = 0;
  51
  52   // Used by Developer Tools to create a new tab with a given URL.
  53   // Replaces CreateTabForTesting.
  54   virtual content::WebContents* CreateNewTabForDevTools(const GURL& url) = 0;
  55
  56   // Return true if we are currently restoring sessions asynchronously.
  57   virtual bool IsSessionRestoreInProgress() const = 0;
  58
  59  protected:
  60   explicit TabModel(Profile* profile);
  61   ~TabModel() override;
  62
  63   // Instructs the TabModel to broadcast a notification that all tabs are now
  64   // loaded from storage.
  65   void BroadcastSessionRestoreComplete();
  66
  67   ToolbarModel* GetToolbarModel();
  68
  69  private:
  70   // Determines how TabModel will interact with the profile.
  71   void Observe(int type,
  72                const content::NotificationSource& source,
  73                const content::NotificationDetails& details) override;
  74
  75   // The profile associated with this TabModel.
  76   Profile* profile_;
  77
  78   // Describes if this TabModel contains an off-the-record profile.
  79   bool is_off_the_record_;
  80
  81   // The SyncedWindowDelegate associated with this TabModel.
  82   scoped_ptr<browser_sync::SyncedWindowDelegateAndroid> synced_window_delegate_;
  83
  84   // Unique identifier of this TabModel for session restore. This id is only
  85   // unique within the current session, and is not guaranteed to be unique
  86   // across sessions.
  87   SessionID session_id_;
  88
  89   // The Registrar used to register TabModel for notifications.
  90   content::NotificationRegistrar registrar_;
  91
  92   DISALLOW_COPY_AND_ASSIGN(TabModel);
  93 };
  94
  95 #endif  // CHROME_BROWSER_UI_ANDROID_TAB_MODEL_TAB_MODEL_H_