Display a warning when autofill is disabled for a website.

chrome/renderer/autofill_helper.h

 // Copyright (c) 2010 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_AUTOFILL_HELPER_H_
 #define CHROME_RENDERER_AUTOFILL_HELPER_H_
 #pragma once
 
 #include <vector>
 
@@ skipping 14 matching lines @@
 // This code was originally part of RenderView.
 // Note that AutoFill encompasses:
 // - single text field suggestions, that we usually refer to as Autocomplete
 // - entire form fill based on one field entry, referred to as form AutoFill.
 
 class AutoFillHelper : public PageClickListener {
  public:
   explicit AutoFillHelper(RenderView* render_view);
 
   // Queries the browser for Autocomplete and AutoFill suggestions for the given
-  // |node|.
-  void QueryAutoFillSuggestions(const WebKit::WebNode& node);
+  // |node|.  If |autofill_disabled| is true, the query is guaranteed to return
+  // no results, but might return a descriptive warning message.
+  void QueryAutoFillSuggestions(const WebKit::WebNode& node,
+                                bool autofill_disabled);
 
   // Removes the Autocomplete suggestion |value| for the field named |name|.
   void RemoveAutocompleteSuggestion(const WebKit::WebString& name,
                                     const WebKit::WebString& value);
 
   // Called when we have received AutoFill suggestions from the browser.
   void SuggestionsReceived(int query_id,
                            const std::vector<string16>& values,
                            const std::vector<string16>& labels,
                            const std::vector<string16>& icons,
@@ skipping 53 matching lines @@
                                    bool was_focused,
                                    bool is_focused);
 
   // Shows the autocomplete suggestions for |element|.
   // This call is asynchronous and may or may not lead to the showing of a
   // suggestion popup (no popup is shown if there are no available suggestions).
   // |autofill_on_empty_values| specifies whether suggestions should be shown
   // when |element| contains no text.
   // |requires_caret_at_end| specifies whether suggestions should be shown when
   // the caret is not after the last character in |element|.
+  // |display_warning_if_disabled| specifies whether a warning should be
+  // displayed to the user if AutoFill has suggestions available, but cannot
+  // fill them because it is disabled (e.g. when trying to fill a credit card
+  // form on a non-secure website).
   void ShowSuggestions(const WebKit::WebInputElement& element,
                        bool autofill_on_empty_values,
-                       bool requires_caret_at_end);
+                       bool requires_caret_at_end,
+                       bool display_warning_if_disabled);
 
   // Queries the AutoFillManager for form data for the form containing |node|.
   // |value| is the current text in the field, and |unique_id| is the selected
   // profile's unique ID.  |action| specifies whether to Fill or Preview the
   // values returned from the AutoFillManager.
   void QueryAutoFillFormData(const WebKit::WebNode& node,
                              int unique_id,
                              AutoFillAction action);
 
   // Scans the given frame for forms and sends them up to the browser.
   void SendForms(WebKit::WebFrame* frame);
 
   // Weak reference.
   RenderView* render_view_;
 
   FormManager form_manager_;
 
   // The ID of the last request sent for form field AutoFill.  Used to ignore
   // out of date responses.
   int autofill_query_id_;
 
   // The node corresponding to the last request sent for form field AutoFill.
   WebKit::WebNode autofill_query_node_;
 
+  // Whether autofill is disabled for |autofill_query_node_| by the website.
+  bool autofill_disabled_;
+
   // The action to take when receiving AutoFill data from the AutoFillManager.
   AutoFillAction autofill_action_;
 
   // The menu index of the "Clear" menu item.
   int suggestions_clear_index_;
 
   // The menu index of the "AutoFill options..." menu item.
   int suggestions_options_index_;
 
   DISALLOW_COPY_AND_ASSIGN(AutoFillHelper);
 };
 
 #endif  // CHROME_RENDERER_AUTOFILL_HELPER_H_