content/public/renderer/navigation_state.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 CONTENT_PUBLIC_RENDERER_NAVIGATION_STATE_H_
   6 #define CONTENT_PUBLIC_RENDERER_NAVIGATION_STATE_H_
   7
   8 #include <string>
   9
  10 #include "content/common/content_export.h"
  11 #include "content/public/common/page_transition_types.h"
  12
  13 namespace content {
  14
  15 // NavigationState is the portion of DocumentState that is affected by
  16 // in-document navigation.
  17 // TODO(simonjam): Move this to HistoryItem's ExtraData.
  18 class CONTENT_EXPORT NavigationState {
  19  public:
  20   virtual ~NavigationState();
  21
  22   static NavigationState* CreateBrowserInitiated(
  23       int32 pending_page_id,
  24       int pending_history_list_offset,
  25       bool history_list_was_cleared,
  26       content::PageTransition transition_type) {
  27     return new NavigationState(transition_type,
  28                                false,
  29                                pending_page_id,
  30                                pending_history_list_offset,
  31                                history_list_was_cleared);
  32   }
  33
  34   static NavigationState* CreateContentInitiated() {
  35     return new NavigationState(
  36         content::PAGE_TRANSITION_LINK, true, -1, -1, false);
  37   }
  38
  39   // Contains the page_id for this navigation or -1 if there is none yet.
  40   int32 pending_page_id() const { return pending_page_id_; }
  41
  42   // If pending_page_id() is not -1, then this contains the corresponding
  43   // offset of the page in the back/forward history list.
  44   int pending_history_list_offset() const {
  45     return pending_history_list_offset_;
  46   }
  47
  48   // If pending_page_id() is not -1, then this returns true if the session
  49   // history was cleared during this navigation.
  50   bool history_list_was_cleared() const {
  51     return history_list_was_cleared_;
  52   }
  53
  54   // If is_content_initiated() is false, whether this navigation should replace
  55   // the current entry in the back/forward history list. Otherwise, use
  56   // replacesCurrentHistoryItem() on the WebDataSource.
  57   //
  58   // TODO(davidben): It would be good to unify these and have only one source
  59   // for the two cases. We can plumb this through WebFrame::loadRequest to set
  60   // lockBackForwardList on the FrameLoadRequest. However, this breaks process
  61   // swaps because FrameLoader::loadWithNavigationAction treats loads before a
  62   // FrameLoader has committedFirstRealDocumentLoad as a replacement. (Added for
  63   // http://crbug.com/178380).
  64   bool should_replace_current_entry() const {
  65     return should_replace_current_entry_;
  66   }
  67   void set_should_replace_current_entry(bool value) {
  68     should_replace_current_entry_ = value;
  69   }
  70
  71   // Contains the transition type that the browser specified when it
  72   // initiated the load.
  73   content::PageTransition transition_type() const { return transition_type_; }
  74   void set_transition_type(content::PageTransition type) {
  75     transition_type_ = type;
  76   }
  77
  78   // True if we have already processed the "DidCommitLoad" event for this
  79   // request.  Used by session history.
  80   bool request_committed() const { return request_committed_; }
  81   void set_request_committed(bool value) { request_committed_ = value; }
  82
  83   // True if this navigation was not initiated via WebFrame::LoadRequest.
  84   bool is_content_initiated() const { return is_content_initiated_; }
  85
  86   // True iff the frame's navigation was within the same page.
  87   void set_was_within_same_page(bool value) { was_within_same_page_ = value; }
  88   bool was_within_same_page() const { return was_within_same_page_; }
  89
  90   // transferred_request_child_id and transferred_request_request_id identify
  91   // a request that has been created before the navigation is being transferred
  92   // to a new renderer. This is used to recycle the old request once the new
  93   // renderer tries to pick up the navigation of the old one.
  94   void set_transferred_request_child_id(int value) {
  95     transferred_request_child_id_ = value;
  96   }
  97   int transferred_request_child_id() const {
  98     return transferred_request_child_id_;
  99   }
 100   void set_transferred_request_request_id(int value) {
 101     transferred_request_request_id_ = value;
 102   }
 103   int transferred_request_request_id() const {
 104     return transferred_request_request_id_;
 105   }
 106   void set_allow_download(bool value) {
 107     allow_download_ = value;
 108   }
 109   bool allow_download() const {
 110     return allow_download_;
 111   }
 112
 113   void set_extra_headers(const std::string& extra_headers) {
 114     extra_headers_ = extra_headers;
 115   }
 116   const std::string& extra_headers() { return extra_headers_; }
 117
 118  private:
 119   NavigationState(content::PageTransition transition_type,
 120                   bool is_content_initiated,
 121                   int32 pending_page_id,
 122                   int pending_history_list_offset,
 123                   bool history_list_was_cleared);
 124
 125   content::PageTransition transition_type_;
 126   bool request_committed_;
 127   bool is_content_initiated_;
 128   int32 pending_page_id_;
 129   int pending_history_list_offset_;
 130   bool history_list_was_cleared_;
 131   bool should_replace_current_entry_;
 132
 133   bool was_within_same_page_;
 134   int transferred_request_child_id_;
 135   int transferred_request_request_id_;
 136   bool allow_download_;
 137   std::string extra_headers_;
 138
 139   DISALLOW_COPY_AND_ASSIGN(NavigationState);
 140 };
 141
 142 }  // namespace content
 143
 144 #endif  // CONTENT_PUBLIC_RENDERER_NAVIGATION_STATE_H_