content/public/renderer/document_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_DOCUMENT_STATE_H_
   6 #define CONTENT_PUBLIC_RENDERER_DOCUMENT_STATE_H_
   7
   8 #include <string>
   9
  10 #include "base/logging.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "base/supports_user_data.h"
  13 #include "base/time/time.h"
  14 #include "content/common/content_export.h"
  15 #include "net/http/http_response_info.h"
  16 #include "third_party/WebKit/public/web/WebDataSource.h"
  17
  18 namespace content {
  19
  20 class NavigationState;
  21
  22 // The RenderView stores an instance of this class in the "extra data" of each
  23 // WebDataSource (see RenderView::DidCreateDataSource).
  24 class CONTENT_EXPORT DocumentState
  25     : NON_EXPORTED_BASE(public blink::WebDataSource::ExtraData),
  26       public base::SupportsUserData {
  27  public:
  28   // The exact values of this enum are used in histograms, so new values must be
  29   // added to the end.
  30   enum LoadType {
  31     UNDEFINED_LOAD,            // Not yet initialized.
  32     RELOAD,                    // User pressed reload.
  33     HISTORY_LOAD,              // Back or forward.
  34     NORMAL_LOAD,               // User entered URL, or omnibox search.
  35     LINK_LOAD,                 // (deprecated) Included next 4 categories.
  36     LINK_LOAD_NORMAL,          // Commonly following of link.
  37     LINK_LOAD_RELOAD,          // JS/link directed reload.
  38     LINK_LOAD_CACHE_STALE_OK,  // back/forward or encoding change.
  39     LINK_LOAD_CACHE_ONLY,      // Allow stale data (avoid doing a re-post)
  40     kLoadTypeMax               // Bounding value for this enum.
  41   };
  42
  43   DocumentState();
  44   virtual ~DocumentState();
  45
  46   static DocumentState* FromDataSource(blink::WebDataSource* ds) {
  47     return static_cast<DocumentState*>(ds->extraData());
  48   }
  49
  50   // The time that this navigation was requested.
  51   const base::Time& request_time() const {
  52     return request_time_;
  53   }
  54   void set_request_time(const base::Time& value) {
  55     DCHECK(start_load_time_.is_null());
  56     request_time_ = value;
  57   }
  58
  59   // The time that the document load started.
  60   const base::Time& start_load_time() const {
  61     return start_load_time_;
  62   }
  63   void set_start_load_time(const base::Time& value) {
  64     // TODO(jar): This should not be set twice.
  65     // DCHECK(!start_load_time_.is_null());
  66     DCHECK(finish_document_load_time_.is_null());
  67     start_load_time_ = value;
  68   }
  69
  70   // The time that the document load was committed.
  71   const base::Time& commit_load_time() const {
  72     return commit_load_time_;
  73   }
  74   void set_commit_load_time(const base::Time& value) {
  75     commit_load_time_ = value;
  76   }
  77
  78   // The time that the document finished loading.
  79   const base::Time& finish_document_load_time() const {
  80     return finish_document_load_time_;
  81   }
  82   void set_finish_document_load_time(const base::Time& value) {
  83     // TODO(jar): Some unittests break the following DCHECK, and don't have
  84     // DCHECK(!start_load_time_.is_null());
  85     DCHECK(!value.is_null());
  86     // TODO(jar): Double setting does happen, but probably shouldn't.
  87     // DCHECK(finish_document_load_time_.is_null());
  88     // TODO(jar): We should guarantee this order :-(.
  89     // DCHECK(finish_load_time_.is_null());
  90     finish_document_load_time_ = value;
  91   }
  92
  93   // The time that the document and all subresources finished loading.
  94   const base::Time& finish_load_time() const { return finish_load_time_; }
  95   void set_finish_load_time(const base::Time& value) {
  96     DCHECK(!value.is_null());
  97     DCHECK(finish_load_time_.is_null());
  98     // The following is not already set in all cases :-(
  99     // DCHECK(!finish_document_load_time_.is_null());
 100     finish_load_time_ = value;
 101   }
 102
 103   // The time that painting first happened after a new navigation.
 104   const base::Time& first_paint_time() const { return first_paint_time_; }
 105   void set_first_paint_time(const base::Time& value) {
 106     first_paint_time_ = value;
 107   }
 108
 109   // The time that painting first happened after the document loaded.
 110   const base::Time& first_paint_after_load_time() const {
 111     return first_paint_after_load_time_;
 112   }
 113   void set_first_paint_after_load_time(const base::Time& value) {
 114     first_paint_after_load_time_ = value;
 115   }
 116
 117   // True iff the histograms for the associated frame have been dumped.
 118   bool load_histograms_recorded() const { return load_histograms_recorded_; }
 119   void set_load_histograms_recorded(bool value) {
 120     load_histograms_recorded_ = value;
 121   }
 122
 123   bool web_timing_histograms_recorded() const {
 124     return web_timing_histograms_recorded_;
 125   }
 126   void set_web_timing_histograms_recorded(bool value) {
 127     web_timing_histograms_recorded_ = value;
 128   }
 129
 130   // Indicator if SPDY was used as part of this page load.
 131   bool was_fetched_via_spdy() const { return was_fetched_via_spdy_; }
 132   void set_was_fetched_via_spdy(bool value) { was_fetched_via_spdy_ = value; }
 133
 134   bool was_npn_negotiated() const { return was_npn_negotiated_; }
 135   void set_was_npn_negotiated(bool value) { was_npn_negotiated_ = value; }
 136
 137   const std::string& npn_negotiated_protocol() const {
 138     return npn_negotiated_protocol_;
 139   }
 140   void set_npn_negotiated_protocol(const std::string& value) {
 141     npn_negotiated_protocol_ = value;
 142   }
 143
 144   bool was_alternate_protocol_available() const {
 145     return was_alternate_protocol_available_;
 146   }
 147   void set_was_alternate_protocol_available(bool value) {
 148     was_alternate_protocol_available_ = value;
 149   }
 150
 151   net::HttpResponseInfo::ConnectionInfo connection_info() const {
 152     return connection_info_;
 153   }
 154   void set_connection_info(
 155       net::HttpResponseInfo::ConnectionInfo connection_info) {
 156     connection_info_ = connection_info;
 157   }
 158
 159   bool was_fetched_via_proxy() const { return was_fetched_via_proxy_; }
 160   void set_was_fetched_via_proxy(bool value) {
 161     was_fetched_via_proxy_ = value;
 162   }
 163
 164   void set_was_prefetcher(bool value) { was_prefetcher_ = value; }
 165   bool was_prefetcher() const { return was_prefetcher_; }
 166
 167   void set_was_referred_by_prefetcher(bool value) {
 168     was_referred_by_prefetcher_ = value;
 169   }
 170   bool was_referred_by_prefetcher() const {
 171     return was_referred_by_prefetcher_;
 172   }
 173
 174   void set_was_after_preconnect_request(bool value) {
 175     was_after_preconnect_request_ = value;
 176   }
 177   bool was_after_preconnect_request() { return was_after_preconnect_request_; }
 178
 179   // Record the nature of this load, for use when histogramming page load times.
 180   LoadType load_type() const { return load_type_; }
 181   void set_load_type(LoadType load_type) { load_type_ = load_type; }
 182
 183   NavigationState* navigation_state() { return navigation_state_.get(); }
 184   void set_navigation_state(NavigationState* navigation_state);
 185
 186   bool can_load_local_resources() const { return can_load_local_resources_; }
 187   void set_can_load_local_resources(bool can_load) {
 188     can_load_local_resources_ = can_load;
 189   }
 190
 191  private:
 192   base::Time request_time_;
 193   base::Time start_load_time_;
 194   base::Time commit_load_time_;
 195   base::Time finish_document_load_time_;
 196   base::Time finish_load_time_;
 197   base::Time first_paint_time_;
 198   base::Time first_paint_after_load_time_;
 199   bool load_histograms_recorded_;
 200   bool web_timing_histograms_recorded_;
 201   bool was_fetched_via_spdy_;
 202   bool was_npn_negotiated_;
 203   std::string npn_negotiated_protocol_;
 204   bool was_alternate_protocol_available_;
 205   net::HttpResponseInfo::ConnectionInfo connection_info_;
 206   bool was_fetched_via_proxy_;
 207
 208   // A prefetcher is a page that contains link rel=prefetch elements.
 209   bool was_prefetcher_;
 210   bool was_referred_by_prefetcher_;
 211   bool was_after_preconnect_request_;
 212
 213   LoadType load_type_;
 214
 215   scoped_ptr<NavigationState> navigation_state_;
 216
 217   bool can_load_local_resources_;
 218 };
 219
 220 #endif  // CONTENT_PUBLIC_RENDERER_DOCUMENT_STATE_H_
 221
 222 }  // namespace content