chrome/browser/sync/glue/synced_tab_delegate.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_SYNC_GLUE_SYNCED_TAB_DELEGATE_H__
   6 #define CHROME_BROWSER_SYNC_GLUE_SYNCED_TAB_DELEGATE_H__
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/memory/scoped_ptr.h"
  12 #include "chrome/browser/sync/sessions/synced_window_delegates_getter.h"
  13 #include "components/sessions/session_id.h"
  14
  15 class Profile;
  16
  17 namespace content {
  18 class NavigationEntry;
  19 class WebContents;
  20 }
  21
  22 namespace browser_sync {
  23 class SyncedWindowDelegate;
  24
  25 // A SyncedTabDelegate is used to insulate the sync code from depending
  26 // directly on WebContents, NavigationController, and the extensions TabHelper.
  27 class SyncedTabDelegate {
  28  public:
  29   virtual ~SyncedTabDelegate();
  30
  31   // Methods from TabContents.
  32
  33   virtual SessionID::id_type GetWindowId() const = 0;
  34   virtual SessionID::id_type GetSessionId() const = 0;
  35   virtual bool IsBeingDestroyed() const = 0;
  36   virtual Profile* profile() const = 0;
  37
  38   // Method derived from extensions TabHelper.
  39
  40   virtual std::string GetExtensionAppId() const = 0;
  41
  42   // Methods from NavigationController.
  43
  44   virtual int GetCurrentEntryIndex() const = 0;
  45   virtual int GetEntryCount() const = 0;
  46   virtual int GetPendingEntryIndex() const = 0;
  47   virtual content::NavigationEntry* GetPendingEntry() const = 0;
  48   virtual content::NavigationEntry* GetEntryAtIndex(int i) const = 0;
  49   virtual content::NavigationEntry* GetActiveEntry() const = 0;
  50
  51   // The idea here is that GetEntryAtIndex may not always return the pending
  52   // entry when asked for the entry at the pending index. These convinience
  53   // methods will check for this case and then call the correct entry accessor.
  54   content::NavigationEntry* GetCurrentEntryMaybePending() const;
  55   content::NavigationEntry* GetEntryAtIndexMaybePending(int i) const;
  56
  57   // Supervised user related methods.
  58
  59   virtual bool ProfileIsSupervised() const = 0;
  60   virtual const std::vector<const content::NavigationEntry*>*
  61       GetBlockedNavigations() const = 0;
  62
  63   virtual bool IsPinned() const = 0;
  64   virtual bool HasWebContents() const = 0;
  65   virtual content::WebContents* GetWebContents() const = 0;
  66
  67   // Session sync related methods.
  68   virtual int GetSyncId() const = 0;
  69   virtual void SetSyncId(int sync_id) = 0;
  70
  71   // Returns true if this tab should be synchronized.
  72   bool ShouldSync() const;
  73
  74   // Sets the window getter. This must be called before any of the sync or
  75   // supervised user methods on this class are called. It is currently set when
  76   // the SyncTabDelegate is retrieved from WebContents via ImplFromWebContents.
  77   void SetSyncedWindowGetter(scoped_ptr<SyncedWindowDelegatesGetter> getter);
  78
  79   // Returns the SyncedTabDelegate associated with WebContents.
  80   static SyncedTabDelegate* ImplFromWebContents(
  81       content::WebContents* web_contents);
  82
  83  protected:
  84   SyncedTabDelegate();
  85
  86   // Overridden by the tests to avoid interaction with static state.
  87   virtual const SyncedWindowDelegate* GetSyncedWindowDelegate() const;
  88
  89  private:
  90   // A getter for accessing the associated SyncedWindowDelegate.
  91   scoped_ptr<SyncedWindowDelegatesGetter> synced_window_getter_;
  92 };
  93
  94 }  // namespace browser_sync
  95
  96 #endif  // CHROME_BROWSER_SYNC_GLUE_SYNCED_TAB_DELEGATE_H__