components/sessions/content/content_live_tab.h

   1 // Copyright (c) 2011 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 COMPONENTS_SESSIONS_CONTENT_CONTENT_LIVE_TAB_H_
   6 #define COMPONENTS_SESSIONS_CONTENT_CONTENT_LIVE_TAB_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/supports_user_data.h"
  10 #include "components/sessions/content/content_serialized_navigation_builder.h"
  11 #include "components/sessions/core/live_tab.h"
  12 #include "components/sessions/sessions_export.h"
  13 #include "content/public/browser/web_contents.h"
  14
  15 namespace content {
  16 class NavigationController;
  17 class NavigationEntry;
  18 class SessionStorageNamespace;
  19 }
  20
  21 class PersistentTabRestoreServiceTest;
  22
  23 namespace sessions {
  24
  25 // An implementation of LiveTab that is backed by content::WebContents for use
  26 // on //content-based platforms.
  27 // Implementation note: This class can't be a WebContentsUserData due to that
  28 // class being unusable in the component build. crbug.com/532866
  29 class SESSIONS_EXPORT ContentLiveTab
  30     : public LiveTab,
  31       public base::SupportsUserData::Data {
  32  public:
  33   ~ContentLiveTab() override;
  34
  35   static void CreateForWebContents(content::WebContents* web_contents);
  36   static ContentLiveTab* FromWebContents(content::WebContents* web_contents);
  37
  38   // LiveTab:
  39   int GetCurrentEntryIndex() override;
  40   int GetPendingEntryIndex() override;
  41   sessions::SerializedNavigationEntry GetEntryAtIndex(int index) override;
  42   sessions::SerializedNavigationEntry GetPendingEntry() override;
  43   int GetEntryCount() override;
  44   void LoadIfNecessary() override;
  45   const std::string& GetUserAgentOverride() const override;
  46
  47   content::WebContents* web_contents() { return web_contents_; }
  48   const content::WebContents* web_contents() const { return web_contents_; }
  49
  50  private:
  51   friend class base::SupportsUserData;
  52   friend class ::PersistentTabRestoreServiceTest;
  53
  54   explicit ContentLiveTab(content::WebContents* contents);
  55
  56   content::NavigationController& navigation_controller() {
  57     return web_contents_->GetController();
  58   }
  59
  60   content::WebContents* web_contents_;
  61
  62   DISALLOW_COPY_AND_ASSIGN(ContentLiveTab);
  63 };
  64
  65 }  // namespace sessions
  66
  67 #endif  // COMPONENTS_SESSIONS_CONTENT_CONTENT_LIVE_TAB_H_