Move navigation and frame tree classes to a new frame_host/ directory.

content/browser/web_contents/navigation_entry_impl.h

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CONTENT_BROWSER_WEB_CONTENTS_NAVIGATION_ENTRY_IMPL_H_
-#define CONTENT_BROWSER_WEB_CONTENTS_NAVIGATION_ENTRY_IMPL_H_
-
-#include "base/basictypes.h"
-#include "base/memory/ref_counted.h"
-#include "content/browser/site_instance_impl.h"
-#include "content/public/browser/favicon_status.h"
-#include "content/public/browser/global_request_id.h"
-#include "content/public/browser/navigation_entry.h"
-#include "content/public/common/page_state.h"
-#include "content/public/common/ssl_status.h"
-
-namespace content {
-
-class CONTENT_EXPORT NavigationEntryImpl
-    : public NON_EXPORTED_BASE(NavigationEntry) {
- public:
-  static NavigationEntryImpl* FromNavigationEntry(NavigationEntry* entry);
-
-  // The value of bindings() before it is set during commit.
-  static int kInvalidBindings;
-
-  NavigationEntryImpl();
-  NavigationEntryImpl(SiteInstanceImpl* instance,
-                      int page_id,
-                      const GURL& url,
-                      const Referrer& referrer,
-                      const string16& title,
-                      PageTransition transition_type,
-                      bool is_renderer_initiated);
-  virtual ~NavigationEntryImpl();
-
-  // NavigationEntry implementation:
-  virtual int GetUniqueID() const OVERRIDE;
-  virtual PageType GetPageType() const OVERRIDE;
-  virtual void SetURL(const GURL& url) OVERRIDE;
-  virtual const GURL& GetURL() const OVERRIDE;
-  virtual void SetBaseURLForDataURL(const GURL& url) OVERRIDE;
-  virtual const GURL& GetBaseURLForDataURL() const OVERRIDE;
-  virtual void SetReferrer(const Referrer& referrer) OVERRIDE;
-  virtual const Referrer& GetReferrer() const OVERRIDE;
-  virtual void SetVirtualURL(const GURL& url) OVERRIDE;
-  virtual const GURL& GetVirtualURL() const OVERRIDE;
-  virtual void SetTitle(const string16& title) OVERRIDE;
-  virtual const string16& GetTitle() const OVERRIDE;
-  virtual void SetPageState(const PageState& state) OVERRIDE;
-  virtual const PageState& GetPageState() const OVERRIDE;
-  virtual void SetPageID(int page_id) OVERRIDE;
-  virtual int32 GetPageID() const OVERRIDE;
-  virtual const string16& GetTitleForDisplay(
-      const std::string& languages) const OVERRIDE;
-  virtual bool IsViewSourceMode() const OVERRIDE;
-  virtual void SetTransitionType(PageTransition transition_type) OVERRIDE;
-  virtual PageTransition GetTransitionType() const OVERRIDE;
-  virtual const GURL& GetUserTypedURL() const OVERRIDE;
-  virtual void SetHasPostData(bool has_post_data) OVERRIDE;
-  virtual bool GetHasPostData() const OVERRIDE;
-  virtual void SetPostID(int64 post_id) OVERRIDE;
-  virtual int64 GetPostID() const OVERRIDE;
-  virtual void SetBrowserInitiatedPostData(
-      const base::RefCountedMemory* data) OVERRIDE;
-  virtual const base::RefCountedMemory*
-      GetBrowserInitiatedPostData() const OVERRIDE;
-  virtual const FaviconStatus& GetFavicon() const OVERRIDE;
-  virtual FaviconStatus& GetFavicon() OVERRIDE;
-  virtual const SSLStatus& GetSSL() const OVERRIDE;
-  virtual SSLStatus& GetSSL() OVERRIDE;
-  virtual void SetOriginalRequestURL(const GURL& original_url) OVERRIDE;
-  virtual const GURL& GetOriginalRequestURL() const OVERRIDE;
-  virtual void SetIsOverridingUserAgent(bool override) OVERRIDE;
-  virtual bool GetIsOverridingUserAgent() const OVERRIDE;
-  virtual void SetTimestamp(base::Time timestamp) OVERRIDE;
-  virtual base::Time GetTimestamp() const OVERRIDE;
-  virtual void SetCanLoadLocalResources(bool allow) OVERRIDE;
-  virtual bool GetCanLoadLocalResources() const OVERRIDE;
-  virtual void SetFrameToNavigate(const std::string& frame_name) OVERRIDE;
-  virtual const std::string& GetFrameToNavigate() const OVERRIDE;
-  virtual void SetExtraData(const std::string& key,
-                            const string16& data) OVERRIDE;
-  virtual bool GetExtraData(const std::string& key,
-                            string16* data) const OVERRIDE;
-  virtual void ClearExtraData(const std::string& key) OVERRIDE;
-  virtual void SetHttpStatusCode(int http_status_code) OVERRIDE;
-  virtual int GetHttpStatusCode() const OVERRIDE;
-
-  void set_unique_id(int unique_id) {
-    unique_id_ = unique_id;
-  }
-
-  // The SiteInstance tells us how to share sub-processes. This is a reference
-  // counted pointer to a shared site instance.
-  //
-  // Note that the SiteInstance should usually not be changed after it is set,
-  // but this may happen if the NavigationEntry was cloned and needs to use a
-  // different SiteInstance.
-  void set_site_instance(SiteInstanceImpl* site_instance);
-  SiteInstanceImpl* site_instance() const {
-    return site_instance_.get();
-  }
-
-  // Remember the set of bindings granted to this NavigationEntry at the time
-  // of commit, to ensure that we do not grant it additional bindings if we
-  // navigate back to it in the future.  This can only be changed once.
-  void SetBindings(int bindings);
-  int bindings() const {
-    return bindings_;
-  }
-
-  void set_page_type(PageType page_type) {
-    page_type_ = page_type;
-  }
-
-  bool has_virtual_url() const {
-    return !virtual_url_.is_empty();
-  }
-
-  bool update_virtual_url_with_url() const {
-    return update_virtual_url_with_url_;
-  }
-  void set_update_virtual_url_with_url(bool update) {
-    update_virtual_url_with_url_ = update;
-  }
-
-  // Extra headers (separated by \n) to send during the request.
-  void set_extra_headers(const std::string& extra_headers) {
-    extra_headers_ = extra_headers;
-  }
-  const std::string& extra_headers() const {
-    return extra_headers_;
-  }
-
-  // Whether this (pending) navigation is renderer-initiated.  Resets to false
-  // for all types of navigations after commit.
-  void set_is_renderer_initiated(bool is_renderer_initiated) {
-    is_renderer_initiated_ = is_renderer_initiated;
-  }
-  bool is_renderer_initiated() const {
-    return is_renderer_initiated_;
-  }
-
-  void set_user_typed_url(const GURL& user_typed_url) {
-    user_typed_url_ = user_typed_url;
-  }
-
-  // Enumerations of the possible restore types.
-  enum RestoreType {
-    // Restore from the previous session.
-    RESTORE_LAST_SESSION_EXITED_CLEANLY,
-    RESTORE_LAST_SESSION_CRASHED,
-
-    // The entry has been restored from the current session. This is used when
-    // the user issues 'reopen closed tab'.
-    RESTORE_CURRENT_SESSION,
-
-    // The entry was not restored.
-    RESTORE_NONE
-  };
-
-  // The RestoreType for this entry. This is set if the entry was retored. This
-  // is set to RESTORE_NONE once the entry is loaded.
-  void set_restore_type(RestoreType type) {
-    restore_type_ = type;
-  }
-  RestoreType restore_type() const {
-    return restore_type_;
-  }
-
-  void set_transferred_global_request_id(
-      const GlobalRequestID& transferred_global_request_id) {
-    transferred_global_request_id_ = transferred_global_request_id;
-  }
-
-  GlobalRequestID transferred_global_request_id() const {
-    return transferred_global_request_id_;
-  }
-
-  // Whether this (pending) navigation needs to replace current entry.
-  // Resets to false after commit.
-  bool should_replace_entry() const {
-    return should_replace_entry_;
-  }
-
-  void set_should_replace_entry(bool should_replace_entry) {
-    should_replace_entry_ = should_replace_entry;
-  }
-
-  void SetScreenshotPNGData(scoped_refptr<base::RefCountedBytes> png_data);
-  const scoped_refptr<base::RefCountedBytes> screenshot() const {
-    return screenshot_;
-  }
-
-  // Whether this (pending) navigation should clear the session history. Resets
-  // to false after commit.
-  bool should_clear_history_list() const {
-    return should_clear_history_list_;
-  }
-  void set_should_clear_history_list(bool should_clear_history_list) {
-    should_clear_history_list_ = should_clear_history_list;
-  }
-
- private:
-  // WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
-  // Session/Tab restore save portions of this class so that it can be recreated
-  // later. If you add a new field that needs to be persisted you'll have to
-  // update SessionService/TabRestoreService and Android WebView
-  // state_serializer.cc appropriately.
-  // WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
-
-  // See the accessors above for descriptions.
-  int unique_id_;
-  scoped_refptr<SiteInstanceImpl> site_instance_;
-  // TODO(creis): Persist bindings_. http://crbug.com/173672.
-  int bindings_;
-  PageType page_type_;
-  GURL url_;
-  Referrer referrer_;
-  GURL virtual_url_;
-  bool update_virtual_url_with_url_;
-  string16 title_;
-  FaviconStatus favicon_;
-  PageState page_state_;
-  int32 page_id_;
-  SSLStatus ssl_;
-  PageTransition transition_type_;
-  GURL user_typed_url_;
-  bool has_post_data_;
-  int64 post_id_;
-  RestoreType restore_type_;
-  GURL original_request_url_;
-  bool is_overriding_user_agent_;
-  base::Time timestamp_;
-  int http_status_code_;
-
-  // This member is not persisted with session restore because it is transient.
-  // If the post request succeeds, this field is cleared since the same
-  // information is stored in |content_state_| above. It is also only shallow
-  // copied with compiler provided copy constructor.
-  scoped_refptr<const base::RefCountedMemory> browser_initiated_post_data_;
-
-  // This is also a transient member (i.e. is not persisted with session
-  // restore). The screenshot of a page is taken when navigating away from the
-  // page. This screenshot is displayed during an overscroll-navigation
-  // gesture. |screenshot_| will be NULL when the screenshot is not available
-  // (e.g. after a session restore, or if taking the screenshot of a page
-  // failed). The UI is responsible for dealing with missing screenshots
-  // appropriately (e.g. display a placeholder image instead).
-  scoped_refptr<base::RefCountedBytes> screenshot_;
-
-  // This member is not persisted with session restore.
-  std::string extra_headers_;
-
-  // Used for specifying base URL for pages loaded via data URLs. Only used and
-  // persisted by Android WebView.
-  GURL base_url_for_data_url_;
-
-  // Whether the entry, while loading, was created for a renderer-initiated
-  // navigation.  This dictates whether the URL should be displayed before the
-  // navigation commits.  It is cleared on commit and not persisted.
-  bool is_renderer_initiated_;
-
-  // This is a cached version of the result of GetTitleForDisplay. It prevents
-  // us from having to do URL formatting on the URL every time the title is
-  // displayed. When the URL, virtual URL, or title is set, this should be
-  // cleared to force a refresh.
-  mutable string16 cached_display_title_;
-
-  // In case a navigation is transferred to a new RVH but the request has
-  // been generated in the renderer already, this identifies the old request so
-  // that it can be resumed. The old request is stored until the
-  // ResourceDispatcher receives the navigation from the renderer which
-  // carries this |transferred_global_request_id_| annotation. Once the request
-  // is transferred to the new process, this is cleared and the request
-  // continues as normal.
-  GlobalRequestID transferred_global_request_id_;
-
-  // This is set to true when this entry is being reloaded and due to changes in
-  // the state of the URL, it has to be reloaded in a different site instance.
-  // In such case, we must treat it as an existing navigation in the new site
-  // instance, instead of a new navigation. This value should not be persisted
-  // and is not needed after the entry commits.
-  //
-  // We also use this flag for cross-process redirect navigations, so that the
-  // browser will replace the current navigation entry (which is the page
-  // doing the redirect).
-  bool should_replace_entry_;
-
-  // This is set to true when this entry's navigation should clear the session
-  // history both on the renderer and browser side. The browser side history
-  // won't be cleared until the renderer has committed this navigation. This
-  // entry is not persisted by the session restore system, as it is always
-  // reset to false after commit.
-  bool should_clear_history_list_;
-
-  // Set when this entry should be able to access local file:// resources. This
-  // value is not needed after the entry commits and is not persisted.
-  bool can_load_local_resources_;
-
-  // If not empty, the name of the frame to navigate. This field is not
-  // persisted, because it is currently only used in tests.
-  std::string frame_to_navigate_;
-
-  // Used to store extra data to support browser features. This member is not
-  // persisted, unless specific data is taken out/put back in at save/restore
-  // time (see TabNavigation for an example of this).
-  std::map<std::string, string16> extra_data_;
-
-  // Copy and assignment is explicitly allowed for this class.
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_WEB_CONTENTS_NAVIGATION_ENTRY_IMPL_H_