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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_NAVIGATOR_IMPL_H_
      6 #define CONTENT_BROWSER_FRAME_HOST_NAVIGATOR_IMPL_H_
      7 
      8 #include "base/memory/ref_counted.h"
      9 #include "content/browser/frame_host/navigation_controller_impl.h"
     10 #include "content/browser/frame_host/navigator.h"
     11 #include "content/common/content_export.h"
     12 
     13 struct FrameMsg_Navigate_Params;
     14 
     15 namespace content {
     16 
     17 class NavigationControllerImpl;
     18 class NavigatorDelegate;
     19 struct LoadCommittedDetails;
     20 
     21 // This class is an implementation of Navigator, responsible for managing
     22 // navigations in regular browser tabs.
     23 class CONTENT_EXPORT NavigatorImpl : public Navigator {
     24  public:
     25   NavigatorImpl(NavigationControllerImpl* navigation_controller,
     26                 NavigatorDelegate* delegate);
     27 
     28   // Fills in |params| based on the content of |entry|.
     29   static void MakeNavigateParams(const NavigationEntryImpl& entry,
     30                                  const NavigationControllerImpl& controller,
     31                                  NavigationController::ReloadType reload_type,
     32                                  base::TimeTicks navigation_start,
     33                                  FrameMsg_Navigate_Params* params);
     34 
     35   // Navigator implementation.
     36   virtual NavigationController* GetController() OVERRIDE;
     37   virtual void DidStartProvisionalLoad(RenderFrameHostImpl* render_frame_host,
     38                                        const GURL& url,
     39                                        bool is_transition_navigation) OVERRIDE;
     40   virtual void DidFailProvisionalLoadWithError(
     41       RenderFrameHostImpl* render_frame_host,
     42       const FrameHostMsg_DidFailProvisionalLoadWithError_Params& params)
     43       OVERRIDE;
     44   virtual void DidFailLoadWithError(
     45       RenderFrameHostImpl* render_frame_host,
     46       const GURL& url,
     47       int error_code,
     48       const base::string16& error_description) OVERRIDE;
     49   virtual void DidNavigate(
     50       RenderFrameHostImpl* render_frame_host,
     51       const FrameHostMsg_DidCommitProvisionalLoad_Params&
     52           input_params) OVERRIDE;
     53   virtual bool NavigateToPendingEntry(
     54       RenderFrameHostImpl* render_frame_host,
     55       NavigationController::ReloadType reload_type) OVERRIDE;
     56   virtual void RequestOpenURL(RenderFrameHostImpl* render_frame_host,
     57                               const GURL& url,
     58                               const Referrer& referrer,
     59                               WindowOpenDisposition disposition,
     60                               bool should_replace_current_entry,
     61                               bool user_gesture) OVERRIDE;
     62   virtual void RequestTransferURL(
     63       RenderFrameHostImpl* render_frame_host,
     64       const GURL& url,
     65       const std::vector<GURL>& redirect_chain,
     66       const Referrer& referrer,
     67       ui::PageTransition page_transition,
     68       WindowOpenDisposition disposition,
     69       const GlobalRequestID& transferred_global_request_id,
     70       bool should_replace_current_entry,
     71       bool user_gesture) OVERRIDE;
     72   virtual void CommitNavigation(
     73       RenderFrameHostImpl* render_frame_host,
     74       const NavigationBeforeCommitInfo& info) OVERRIDE;
     75 
     76  private:
     77   virtual ~NavigatorImpl() {}
     78 
     79   // Navigates to the given entry, which must be the pending entry.  Private
     80   // because all callers should use NavigateToPendingEntry.
     81   bool NavigateToEntry(
     82       RenderFrameHostImpl* render_frame_host,
     83       const NavigationEntryImpl& entry,
     84       NavigationController::ReloadType reload_type);
     85 
     86   bool ShouldAssignSiteForURL(const GURL& url);
     87 
     88   void CheckWebUIRendererDoesNotDisplayNormalURL(
     89     RenderFrameHostImpl* render_frame_host,
     90     const GURL& url);
     91 
     92   // The NavigationController that will keep track of session history for all
     93   // RenderFrameHost objects using this NavigatorImpl.
     94   // TODO(nasko): Move ownership of the NavigationController from
     95   // WebContentsImpl to this class.
     96   NavigationControllerImpl* controller_;
     97 
     98   // Used to notify the object embedding this Navigator about navigation
     99   // events. Can be NULL in tests.
    100   NavigatorDelegate* delegate_;
    101 
    102   DISALLOW_COPY_AND_ASSIGN(NavigatorImpl);
    103 };
    104 
    105 }  // namespace content
    106 
    107 #endif  // CONTENT_BROWSER_FRAME_HOST_NAVIGATOR_IMPL_H_
    108