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.
5 #ifndef CONTENT_BROWSER_FRAME_HOST_NAVIGATION_ENTRY_IMPL_H_
6 #define CONTENT_BROWSER_FRAME_HOST_NAVIGATION_ENTRY_IMPL_H_
8 #include "base/basictypes.h"
9 #include "base/memory/ref_counted.h"
10 #include "content/browser/site_instance_impl.h"
11 #include "content/public/browser/favicon_status.h"
12 #include "content/public/browser/global_request_id.h"
13 #include "content/public/browser/navigation_entry.h"
14 #include "content/public/common/page_state.h"
15 #include "content/public/common/ssl_status.h"
19 class CONTENT_EXPORT NavigationEntryImpl
20 : public NON_EXPORTED_BASE(NavigationEntry) {
22 static NavigationEntryImpl* FromNavigationEntry(NavigationEntry* entry);
24 // The value of bindings() before it is set during commit.
25 static int kInvalidBindings;
27 NavigationEntryImpl();
28 NavigationEntryImpl(SiteInstanceImpl* instance,
31 const Referrer& referrer,
32 const base::string16& title,
33 PageTransition transition_type,
34 bool is_renderer_initiated);
35 virtual ~NavigationEntryImpl();
37 // NavigationEntry implementation:
38 virtual int GetUniqueID() const OVERRIDE;
39 virtual PageType GetPageType() const OVERRIDE;
40 virtual void SetURL(const GURL& url) OVERRIDE;
41 virtual const GURL& GetURL() const OVERRIDE;
42 virtual void SetBaseURLForDataURL(const GURL& url) OVERRIDE;
43 virtual const GURL& GetBaseURLForDataURL() const OVERRIDE;
44 virtual void SetReferrer(const Referrer& referrer) OVERRIDE;
45 virtual const Referrer& GetReferrer() const OVERRIDE;
46 virtual void SetVirtualURL(const GURL& url) OVERRIDE;
47 virtual const GURL& GetVirtualURL() const OVERRIDE;
48 virtual void SetTitle(const base::string16& title) OVERRIDE;
49 virtual const base::string16& GetTitle() const OVERRIDE;
50 virtual void SetPageState(const PageState& state) OVERRIDE;
51 virtual const PageState& GetPageState() const OVERRIDE;
52 virtual void SetPageID(int page_id) OVERRIDE;
53 virtual int32 GetPageID() const OVERRIDE;
54 virtual const base::string16& GetTitleForDisplay(
55 const std::string& languages) const OVERRIDE;
56 virtual bool IsViewSourceMode() const OVERRIDE;
57 virtual void SetTransitionType(PageTransition transition_type) OVERRIDE;
58 virtual PageTransition GetTransitionType() const OVERRIDE;
59 virtual const GURL& GetUserTypedURL() const OVERRIDE;
60 virtual void SetHasPostData(bool has_post_data) OVERRIDE;
61 virtual bool GetHasPostData() const OVERRIDE;
62 virtual void SetPostID(int64 post_id) OVERRIDE;
63 virtual int64 GetPostID() const OVERRIDE;
64 virtual void SetBrowserInitiatedPostData(
65 const base::RefCountedMemory* data) OVERRIDE;
66 virtual const base::RefCountedMemory*
67 GetBrowserInitiatedPostData() const OVERRIDE;
68 virtual const FaviconStatus& GetFavicon() const OVERRIDE;
69 virtual FaviconStatus& GetFavicon() OVERRIDE;
70 virtual const SSLStatus& GetSSL() const OVERRIDE;
71 virtual SSLStatus& GetSSL() OVERRIDE;
72 virtual void SetOriginalRequestURL(const GURL& original_url) OVERRIDE;
73 virtual const GURL& GetOriginalRequestURL() const OVERRIDE;
74 virtual void SetIsOverridingUserAgent(bool override) OVERRIDE;
75 virtual bool GetIsOverridingUserAgent() const OVERRIDE;
76 virtual void SetTimestamp(base::Time timestamp) OVERRIDE;
77 virtual base::Time GetTimestamp() const OVERRIDE;
78 virtual void SetCanLoadLocalResources(bool allow) OVERRIDE;
79 virtual bool GetCanLoadLocalResources() const OVERRIDE;
80 virtual void SetFrameToNavigate(const std::string& frame_name) OVERRIDE;
81 virtual const std::string& GetFrameToNavigate() const OVERRIDE;
82 virtual void SetExtraData(const std::string& key,
83 const base::string16& data) OVERRIDE;
84 virtual bool GetExtraData(const std::string& key,
85 base::string16* data) const OVERRIDE;
86 virtual void ClearExtraData(const std::string& key) OVERRIDE;
87 virtual void SetHttpStatusCode(int http_status_code) OVERRIDE;
88 virtual int GetHttpStatusCode() const OVERRIDE;
89 virtual bool IsRestored() const OVERRIDE;
91 // Once a navigation entry is committed, we should no longer track several
92 // pieces of non-persisted state, as documented on the members below.
93 void ResetForCommit();
95 void set_unique_id(int unique_id) {
96 unique_id_ = unique_id;
99 // The SiteInstance tells us how to share sub-processes. This is a reference
100 // counted pointer to a shared site instance.
102 // Note that the SiteInstance should usually not be changed after it is set,
103 // but this may happen if the NavigationEntry was cloned and needs to use a
104 // different SiteInstance.
105 void set_site_instance(SiteInstanceImpl* site_instance);
106 SiteInstanceImpl* site_instance() const {
107 return site_instance_.get();
110 // Remember the set of bindings granted to this NavigationEntry at the time
111 // of commit, to ensure that we do not grant it additional bindings if we
112 // navigate back to it in the future. This can only be changed once.
113 void SetBindings(int bindings);
114 int bindings() const {
118 void set_page_type(PageType page_type) {
119 page_type_ = page_type;
122 bool has_virtual_url() const {
123 return !virtual_url_.is_empty();
126 bool update_virtual_url_with_url() const {
127 return update_virtual_url_with_url_;
129 void set_update_virtual_url_with_url(bool update) {
130 update_virtual_url_with_url_ = update;
133 // Extra headers (separated by \n) to send during the request.
134 void set_extra_headers(const std::string& extra_headers) {
135 extra_headers_ = extra_headers;
137 const std::string& extra_headers() const {
138 return extra_headers_;
141 // Whether this (pending) navigation is renderer-initiated. Resets to false
142 // for all types of navigations after commit.
143 void set_is_renderer_initiated(bool is_renderer_initiated) {
144 is_renderer_initiated_ = is_renderer_initiated;
146 bool is_renderer_initiated() const {
147 return is_renderer_initiated_;
150 void set_user_typed_url(const GURL& user_typed_url) {
151 user_typed_url_ = user_typed_url;
154 // Enumerations of the possible restore types.
156 // Restore from the previous session.
157 RESTORE_LAST_SESSION_EXITED_CLEANLY,
158 RESTORE_LAST_SESSION_CRASHED,
160 // The entry has been restored from the current session. This is used when
161 // the user issues 'reopen closed tab'.
162 RESTORE_CURRENT_SESSION,
164 // The entry was not restored.
168 // The RestoreType for this entry. This is set if the entry was retored. This
169 // is set to RESTORE_NONE once the entry is loaded.
170 void set_restore_type(RestoreType type) {
171 restore_type_ = type;
173 RestoreType restore_type() const {
174 return restore_type_;
177 void set_transferred_global_request_id(
178 const GlobalRequestID& transferred_global_request_id) {
179 transferred_global_request_id_ = transferred_global_request_id;
182 GlobalRequestID transferred_global_request_id() const {
183 return transferred_global_request_id_;
186 // Whether this (pending) navigation needs to replace current entry.
187 // Resets to false after commit.
188 bool should_replace_entry() const {
189 return should_replace_entry_;
192 void set_should_replace_entry(bool should_replace_entry) {
193 should_replace_entry_ = should_replace_entry;
196 // Any redirects present in a pending entry when it is transferred from one
197 // process to another. Not valid after commit.
198 const std::vector<GURL>& redirect_chain() const {
199 return redirect_chain_;
202 void set_redirect_chain(const std::vector<GURL>& redirect_chain) {
203 redirect_chain_ = redirect_chain;
206 void SetScreenshotPNGData(scoped_refptr<base::RefCountedBytes> png_data);
207 const scoped_refptr<base::RefCountedBytes> screenshot() const {
211 // Whether this (pending) navigation should clear the session history. Resets
212 // to false after commit.
213 bool should_clear_history_list() const {
214 return should_clear_history_list_;
216 void set_should_clear_history_list(bool should_clear_history_list) {
217 should_clear_history_list_ = should_clear_history_list;
220 // Indicates which FrameTreeNode to navigate. Currently only used if the
221 // --site-per-process flag is passed.
222 int64 frame_tree_node_id() const {
223 return frame_tree_node_id_;
225 void set_frame_tree_node_id(int64 frame_tree_node_id) {
226 frame_tree_node_id_ = frame_tree_node_id;
230 // WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
231 // Session/Tab restore save portions of this class so that it can be recreated
232 // later. If you add a new field that needs to be persisted you'll have to
233 // update SessionService/TabRestoreService and Android WebView
234 // state_serializer.cc appropriately.
235 // WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
237 // See the accessors above for descriptions.
239 scoped_refptr<SiteInstanceImpl> site_instance_;
240 // TODO(creis): Persist bindings_. http://crbug.com/173672.
246 bool update_virtual_url_with_url_;
247 base::string16 title_;
248 FaviconStatus favicon_;
249 PageState page_state_;
252 PageTransition transition_type_;
253 GURL user_typed_url_;
256 RestoreType restore_type_;
257 GURL original_request_url_;
258 bool is_overriding_user_agent_;
259 base::Time timestamp_;
260 int http_status_code_;
262 // This member is not persisted with session restore because it is transient.
263 // If the post request succeeds, this field is cleared since the same
264 // information is stored in |content_state_| above. It is also only shallow
265 // copied with compiler provided copy constructor.
266 // Cleared in |ResetForCommit|.
267 scoped_refptr<const base::RefCountedMemory> browser_initiated_post_data_;
269 // This is also a transient member (i.e. is not persisted with session
270 // restore). The screenshot of a page is taken when navigating away from the
271 // page. This screenshot is displayed during an overscroll-navigation
272 // gesture. |screenshot_| will be NULL when the screenshot is not available
273 // (e.g. after a session restore, or if taking the screenshot of a page
274 // failed). The UI is responsible for dealing with missing screenshots
275 // appropriately (e.g. display a placeholder image instead).
276 scoped_refptr<base::RefCountedBytes> screenshot_;
278 // This member is not persisted with session restore.
279 std::string extra_headers_;
281 // Used for specifying base URL for pages loaded via data URLs. Only used and
282 // persisted by Android WebView.
283 GURL base_url_for_data_url_;
285 // Whether the entry, while loading, was created for a renderer-initiated
286 // navigation. This dictates whether the URL should be displayed before the
287 // navigation commits. It is cleared in |ResetForCommit| and not persisted.
288 bool is_renderer_initiated_;
290 // This is a cached version of the result of GetTitleForDisplay. It prevents
291 // us from having to do URL formatting on the URL every time the title is
292 // displayed. When the URL, virtual URL, or title is set, this should be
293 // cleared to force a refresh.
294 mutable base::string16 cached_display_title_;
296 // In case a navigation is transferred to a new RVH but the request has
297 // been generated in the renderer already, this identifies the old request so
298 // that it can be resumed. The old request is stored until the
299 // ResourceDispatcher receives the navigation from the renderer which
300 // carries this |transferred_global_request_id_| annotation. Once the request
301 // is transferred to the new process, this is cleared and the request
302 // continues as normal.
303 // Cleared in |ResetForCommit|.
304 GlobalRequestID transferred_global_request_id_;
306 // This is set to true when this entry is being reloaded and due to changes in
307 // the state of the URL, it has to be reloaded in a different site instance.
308 // In such case, we must treat it as an existing navigation in the new site
309 // instance, instead of a new navigation. This value should not be persisted
310 // and is cleared in |ResetForCommit|.
312 // We also use this flag for cross-process redirect navigations, so that the
313 // browser will replace the current navigation entry (which is the page
314 // doing the redirect).
315 bool should_replace_entry_;
317 // This is used when transferring a pending entry from one process to another.
318 // It is cleared in |ResetForCommit| and should not be persisted.
319 std::vector<GURL> redirect_chain_;
321 // This is set to true when this entry's navigation should clear the session
322 // history both on the renderer and browser side. The browser side history
323 // won't be cleared until the renderer has committed this navigation. This
324 // entry is not persisted by the session restore system, as it is always
325 // cleared in |ResetForCommit|.
326 bool should_clear_history_list_;
328 // Set when this entry should be able to access local file:// resources. This
329 // value is not needed after the entry commits and is not persisted.
330 bool can_load_local_resources_;
332 // If not empty, the name of the frame to navigate. This field is not
333 // persisted, because it is currently only used in tests.
334 std::string frame_to_navigate_;
336 // If not -1, this indicates which FrameTreeNode to navigate. This field is
337 // not persisted because it is experimental and only used when the
338 // --site-per-process flag is passed. It is cleared in |ResetForCommit|
339 // because we only use it while the navigation is pending.
340 // TODO(creis): Move this to FrameNavigationEntry.
341 int64 frame_tree_node_id_;
343 // Used to store extra data to support browser features. This member is not
344 // persisted, unless specific data is taken out/put back in at save/restore
345 // time (see TabNavigation for an example of this).
346 std::map<std::string, base::string16> extra_data_;
348 // Copy and assignment is explicitly allowed for this class.
351 } // namespace content
353 #endif // CONTENT_BROWSER_FRAME_HOST_NAVIGATION_ENTRY_IMPL_H_