Instant: Use only one hidden WebContents per profile.

chrome/renderer/searchbox/searchbox.h

 // Copyright 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 CHROME_RENDERER_SEARCHBOX_SEARCHBOX_H_
 #define CHROME_RENDERER_SEARCHBOX_SEARCHBOX_H_
 
-#include <vector>
-
 #include "base/basictypes.h"
+#include "base/compiler_specific.h"
 #include "base/string16.h"
-#include "chrome/common/instant_types.h"
-#include "chrome/common/search_types.h"
-#include "content/public/common/page_transition_types.h"
 #include "content/public/renderer/render_view_observer.h"
 #include "content/public/renderer/render_view_observer_tracker.h"
-#include "ui/base/window_open_disposition.h"
 #include "ui/gfx/rect.h"
 
+struct InstantSuggestion;
+
 namespace content {
 class RenderView;
 }
 
 class SearchBox : public content::RenderViewObserver,
                   public content::RenderViewObserverTracker<SearchBox> {
  public:
   explicit SearchBox(content::RenderView* render_view);
   virtual ~SearchBox();
 
-  // Sends ChromeViewHostMsg_SetSuggestions to the browser.
-  void SetSuggestions(const std::vector<InstantSuggestion>& suggestions);
-
-  // Sends ChromeViewHostMsg_ShowInstantOverlay to the browser.
-  void ShowInstantOverlay(InstantShownReason reason,
-                          int height,
-                          InstantSizeUnits units);
-
-  // Sends ChromeViewHostMsg_FocusOmnibox to the browser.
-  void FocusOmnibox();
-
-  // Sends ChromeViewHostMsg_StartCapturingKeyStrokes to the browser.
-  void StartCapturingKeyStrokes();
-
-  // Sends ChromeViewHostMsg_StopCapturingKeyStrokes to the browser.
-  void StopCapturingKeyStrokes();
-
-  // Sends ChromeViewHostMsg_SearchBoxNavigate to the browser.
-  void NavigateToURL(const GURL& url,
-                     content::PageTransition transition,
-                     WindowOpenDisposition disposition);
-
-  // Sends ChromeViewHostMsg_InstantDeleteMostVisitedItem to the browser.
-  void DeleteMostVisitedItem(int restrict_id);
-
-  // Sends ChromeViewHostMsg_InstantUndoMostVisitedDeletion to the browser.
-  void UndoMostVisitedDeletion(int restrict_id);
-
-  // Sends ChromeViewHostMsg_InstantUndoAllMostVisitedDeletions to the browser.
-  void UndoAllMostVisitedDeletions();
-
   const string16& query() const { return query_; }
   bool verbatim() const { return verbatim_; }
   size_t selection_start() const { return selection_start_; }
   size_t selection_end() const { return selection_end_; }
-  int results_base() const { return results_base_; }
-  bool is_key_capture_enabled() const { return is_key_capture_enabled_; }
-  bool display_instant_results() const { return display_instant_results_; }
-  const string16& omnibox_font() const { return omnibox_font_; }
-  size_t omnibox_font_size() const { return omnibox_font_size_; }
 
-  // In extended Instant, returns the start-edge margin of the location bar in
-  // screen pixels.
-  int GetStartMargin() const;
-
-  // Returns the bounds of the omnibox popup in screen coordinates.
+  // Returns the bounds of the omnibox popup, adjusted for page zoom.
   gfx::Rect GetPopupBounds() const;
 
-  const std::vector<InstantAutocompleteResult>& GetAutocompleteResults();
-  // Searchbox retains ownership of this object.
-  const InstantAutocompleteResult*
-      GetAutocompleteResultWithId(size_t restricted_id) const;
-  const ThemeBackgroundInfo& GetThemeBackgroundInfo();
-
-  // Most Visited items.
-  const std::vector<MostVisitedItem>& GetMostVisitedItems();
-
-  // Secure Urls.
-  int UrlToRestrictedId(const string16 url);
-  string16 RestrictedIdToURL(int id);
-  string16 GenerateThumbnailUrl(int id);
-  string16 GenerateFaviconUrl(int id);
+  void SetSuggestion(const InstantSuggestion& suggestion);
 
  private:
   // Overridden from content::RenderViewObserver:
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
-  virtual void DidClearWindowObject(WebKit::WebFrame* frame) OVERRIDE;
 
+  void OnDetermineInstantSupport();
   void OnChange(const string16& query,
                 bool verbatim,
                 size_t selection_start,
                 size_t selection_end);
   void OnSubmit(const string16& query);
-  void OnCancel(const string16& query);
-  void OnPopupResize(const gfx::Rect& bounds);
-  void OnMarginChange(int margin, int width);
-  void OnDetermineIfPageSupportsInstant();
-  void OnAutocompleteResults(
-      const std::vector<InstantAutocompleteResult>& results);
-  void OnUpOrDownKeyPressed(int count);
-  void OnCancelSelection(const string16& query);
-  void OnKeyCaptureChange(bool is_key_capture_enabled);
-  void OnSetDisplayInstantResults(bool display_instant_results);
-  void OnThemeChanged(const ThemeBackgroundInfo& theme_info);
-  void OnThemeAreaHeightChanged(int height);
-  void OnFontInformationReceived(const string16& omnibox_font,
-                                 size_t omnibox_font_size);
-  void OnGrantChromeSearchAccessFromOrigin(const GURL& origin_url);
-  void OnMostVisitedChanged(const std::vector<MostVisitedItem>& items);
+  void OnBlur(const string16& query);
+  void OnPopupBounds(const gfx::Rect& bounds);
 
   // Returns the current zoom factor of the render view or 1 on failure.
   double GetZoom() const;
 
-  // Sets the searchbox values to their initial value.
+  // Resets the SearchBox state. This is called after a query is committed. It
+  // is important to do this, because if the user reloads the page (or comes
+  // back to it after navigating away), the page might fall into the same
+  // RenderView / SearchBox as it had before. In which case, if the state has
+  // not been reset, the page might erroneously think a query is in progress.
   void Reset();
 
   string16 query_;
   bool verbatim_;
   size_t selection_start_;
   size_t selection_end_;
-  size_t results_base_;
-  int start_margin_;
   gfx::Rect popup_bounds_;
-  std::vector<InstantAutocompleteResult> autocomplete_results_;
-  size_t last_results_base_;
-  std::vector<InstantAutocompleteResult> last_autocomplete_results_;
-  bool is_key_capture_enabled_;
-  ThemeBackgroundInfo theme_info_;
-  bool display_instant_results_;
-  string16 omnibox_font_;
-  size_t omnibox_font_size_;
-  std::vector<MostVisitedItem> most_visited_items_;
-
-  // URL to Restricted Id mapping.
-  // TODO(dcblack): Unify this logic to work with both Most Visited and
-  // history suggestions.  (crbug/175768)
-  std::map<string16, int> url_to_restricted_id_map_;
-  std::map<int, string16> restricted_id_to_url_map_;
-  int last_restricted_id_;
 
   DISALLOW_COPY_AND_ASSIGN(SearchBox);
 };
 
 #endif  // CHROME_RENDERER_SEARCHBOX_SEARCHBOX_H_