Instant API: tell page whether the browser is capturing key strokes.

chrome/browser/instant/instant_controller.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_BROWSER_INSTANT_INSTANT_CONTROLLER_H_
 #define CHROME_BROWSER_INSTANT_INSTANT_CONTROLLER_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 68 matching lines @@
 
   // If the preview is showing search results, commits the preview, calling
   // CommitInstant() on the browser, and returns true. Else, returns false.
   bool CommitIfCurrent(InstantCommitType type);
 
   // The omnibox has lost focus. Commit or discard the preview accordingly.
   void OmniboxLostFocus(gfx::NativeView view_gaining_focus);
 
   // The omnibox has gained focus. Preload the default search engine, in
   // anticipation of the user typing a query.
-  void OmniboxGotFocus();
+  void OmniboxGotFocus(bool focus_is_visible);
 
   // The search mode in the active tab has changed. Pass the message down to
   // the loader which will notify the renderer.
   void SearchModeChanged(const chrome::search::Mode& old_mode,
                          const chrome::search::Mode& new_mode);
 
   // The user switched tabs. Hide the preview if needed.
   void ActiveTabChanged();
 
   // Sets whether Instant should show result previews.
@@ skipping 76 matching lines @@
   // out results for any old queries.
   void Hide(bool clear_query);
 
   // Counterpart to Hide(). Asks the |browser_| to display the preview with
   // the given |height|.
   void Show(InstantShownReason reason, int height, InstantSizeUnits units);
 
   // Send the omnibox dropdown bounds to the page.
   void SendBoundsToPage();
 
+  // Helper to send key capture mode to the page.
+  void SendKeyCaptureModeToPage();
+
   // If |template_url| is a valid TemplateURL for use with Instant, fills in
   // |instant_url| and returns true; returns false otherwise.
   // Note: If the command-line switch kInstantURL is set, this method uses its
   // value for |instant_url| and returns true without examining |template_url|.
   bool GetInstantURL(const TemplateURL* template_url,
                      std::string* instant_url) const;
 
   chrome::BrowserInstantController* const browser_;
 
   // Whether the extended API and regular API are enabled. If both are false,
@@ skipping 17 matching lines @@
   // The most recent suggestion received from the page, minus any prefix that
   // the user has typed.
   InstantSuggestion last_suggestion_;
 
   // See comments on the getter above.
   content::PageTransition last_transition_type_;
 
   // True if the last match passed to Update() was a search (versus a URL).
   bool last_match_was_search_;
 
-  // True if the omnibox is focused, false otherwise.
-  bool is_omnibox_focused_;
+  // Omnibox focus state.
+  enum OmniboxFocusState {
+    NONE = 0,  // Not focused
+    VISIBLE = 1, // Visibly focused
+    INVISIBLE = 2  // Invisibly focused
+  };
+  OmniboxFocusState omnibox_focus_state_;
 
   // The search model mode for the active tab.
   chrome::search::Mode search_mode_;
 
   // Current omnibox bounds.
   gfx::Rect omnibox_bounds_;
 
   // Last bounds passed to the page.
   gfx::Rect last_omnibox_bounds_;
 
@@ skipping 18 matching lines @@
 
   // The timestamp at which query editing began. This value is used when the
   // first set of suggestions is processed and cleared when the overlay is
   // hidden.
   base::Time first_interaction_time_;
 
   DISALLOW_COPY_AND_ASSIGN(InstantController);
 };
 
 #endif  // CHROME_BROWSER_INSTANT_INSTANT_CONTROLLER_H_