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      1 // Copyright (c) 2011 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.
      4 
      5 #ifndef CHROME_BROWSER_AUTOCOMPLETE_HISTORY_MANAGER_H_
      6 #define CHROME_BROWSER_AUTOCOMPLETE_HISTORY_MANAGER_H_
      7 #pragma once
      8 
      9 #include <vector>
     10 
     11 #include "chrome/browser/prefs/pref_member.h"
     12 #include "chrome/browser/webdata/web_data_service.h"
     13 #include "content/browser/tab_contents/tab_contents_observer.h"
     14 
     15 namespace webkit_glue {
     16 struct FormData;
     17 }  // namespace webkit_glue
     18 
     19 class Profile;
     20 class TabContents;
     21 
     22 // Per-tab Autocomplete history manager. Handles receiving form data from the
     23 // renderer and the storing and retrieving of form data through WebDataService.
     24 class AutocompleteHistoryManager : public TabContentsObserver,
     25                                    public WebDataServiceConsumer {
     26  public:
     27   explicit AutocompleteHistoryManager(TabContents* tab_contents);
     28   virtual ~AutocompleteHistoryManager();
     29 
     30   // TabContentsObserver implementation.
     31   virtual bool OnMessageReceived(const IPC::Message& message);
     32 
     33   // WebDataServiceConsumer implementation.
     34   virtual void OnWebDataServiceRequestDone(WebDataService::Handle h,
     35                                            const WDTypedResult* result);
     36 
     37   // Pass-through functions that are called by AutofillManager, after it has
     38   // dispatched a message.
     39   void OnGetAutocompleteSuggestions(
     40       int query_id,
     41       const string16& name,
     42       const string16& prefix,
     43       const std::vector<string16>& autofill_values,
     44       const std::vector<string16>& autofill_labels,
     45       const std::vector<string16>& autofill_icons,
     46       const std::vector<int>& autofill_unique_ids);
     47   void OnFormSubmitted(const webkit_glue::FormData& form);
     48 
     49  protected:
     50   friend class AutocompleteHistoryManagerTest;
     51   friend class AutofillManagerTest;
     52 
     53   // For tests.
     54   AutocompleteHistoryManager(TabContents* tab_contents,
     55                              Profile* profile,
     56                              WebDataService* wds);
     57 
     58   void SendSuggestions(const std::vector<string16>* suggestions);
     59   void CancelPendingQuery();
     60 
     61  private:
     62   void OnRemoveAutocompleteEntry(const string16& name, const string16& value);
     63 
     64   Profile* profile_;
     65   scoped_refptr<WebDataService> web_data_service_;
     66 
     67   BooleanPrefMember autofill_enabled_;
     68 
     69   // When the manager makes a request from WebDataService, the database is
     70   // queried on another thread, we record the query handle until we get called
     71   // back.  We also store the autofill results so we can send them together.
     72   WebDataService::Handle pending_query_handle_;
     73   int query_id_;
     74   std::vector<string16> autofill_values_;
     75   std::vector<string16> autofill_labels_;
     76   std::vector<string16> autofill_icons_;
     77   std::vector<int> autofill_unique_ids_;
     78 
     79   DISALLOW_COPY_AND_ASSIGN(AutocompleteHistoryManager);
     80 };
     81 
     82 #endif  // CHROME_BROWSER_AUTOCOMPLETE_HISTORY_MANAGER_H_
     83