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      1 // Copyright 2013 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 CONTENT_BROWSER_FRAME_HOST_NAVIGATION_CONTROLLER_DELEGATE_H_
      6 #define CONTENT_BROWSER_FRAME_HOST_NAVIGATION_CONTROLLER_DELEGATE_H_
      7 
      8 #include <string>
      9 #include "content/public/browser/navigation_controller.h"
     10 #include "content/public/browser/navigation_details.h"
     11 
     12 namespace content {
     13 
     14 struct LoadCommittedDetails;
     15 struct LoadNotificationDetails;
     16 struct NativeWebKeyboardEvent;
     17 class InterstitialPage;
     18 class InterstitialPageImpl;
     19 class RenderFrameHost;
     20 class RenderViewHost;
     21 class SiteInstance;
     22 class WebContents;
     23 class WebContentsDelegate;
     24 
     25 // Interface for objects embedding a NavigationController to provide the
     26 // functionality NavigationController needs.
     27 // TODO(nasko): This interface should exist for short amount of time, while
     28 // we transition navigation code from WebContents to Navigator.
     29 class NavigationControllerDelegate {
     30  public:
     31   virtual ~NavigationControllerDelegate() {}
     32 
     33   // Duplicates of WebContents methods.
     34   virtual RenderViewHost* GetRenderViewHost() const = 0;
     35   virtual InterstitialPage* GetInterstitialPage() const = 0;
     36   virtual const std::string& GetContentsMimeType() const = 0;
     37   virtual void NotifyNavigationStateChanged(unsigned changed_flags) = 0;
     38   virtual void Stop() = 0;
     39   virtual SiteInstance* GetPendingSiteInstance() const = 0;
     40   virtual int32 GetMaxPageID() = 0;
     41   virtual int32 GetMaxPageIDForSiteInstance(SiteInstance* site_instance) = 0;
     42   virtual bool IsLoading() const = 0;
     43   virtual bool IsBeingDestroyed() const = 0;
     44   virtual bool CanOverscrollContent() const = 0;
     45 
     46   // Methods from WebContentsImpl that NavigationControllerImpl needs to
     47   // call.
     48   virtual void NotifyBeforeFormRepostWarningShow() = 0;
     49   virtual void NotifyNavigationEntryCommitted(
     50       const LoadCommittedDetails& load_details) = 0;
     51   virtual bool NavigateToPendingEntry(
     52       NavigationController::ReloadType reload_type) = 0;
     53   virtual void SetHistoryLengthAndPrune(
     54       const SiteInstance* site_instance,
     55       int merge_history_length,
     56       int32 minimum_page_id) = 0;
     57   virtual void CopyMaxPageIDsFrom(WebContents* web_contents) = 0;
     58   virtual void UpdateMaxPageID(int32 page_id) = 0;
     59   virtual void UpdateMaxPageIDForSiteInstance(SiteInstance* site_instance,
     60                                               int32 page_id) = 0;
     61   virtual void ActivateAndShowRepostFormWarningDialog() = 0;
     62   virtual bool HasAccessedInitialDocument() = 0;
     63 
     64   // This method is needed, since we are no longer guaranteed that the
     65   // embedder for NavigationController will be a WebContents object.
     66   virtual WebContents* GetWebContents() = 0;
     67 
     68   // Methods needed by InterstitialPageImpl.
     69   virtual bool IsHidden() = 0;
     70   virtual void RenderFrameForInterstitialPageCreated(
     71       RenderFrameHost* render_frame_host) = 0;
     72   virtual void AttachInterstitialPage(
     73       InterstitialPageImpl* interstitial_page) = 0;
     74   virtual void DetachInterstitialPage() = 0;
     75   virtual void SetIsLoading(RenderViewHost* render_view_host,
     76                             bool is_loading,
     77                             bool to_different_document,
     78                             LoadNotificationDetails* details) = 0;
     79 };
     80 
     81 }  // namespace content
     82 
     83 #endif  // CONTENT_BROWSER_FRAME_HOST_NAVIGATION_CONTROLLER_DELEGATE_H_
     84