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      1 // Copyright 2013 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_UI_APP_LIST_SEARCH_SEARCH_CONTROLLER_H_
      6 #define CHROME_BROWSER_UI_APP_LIST_SEARCH_SEARCH_CONTROLLER_H_
      7 
      8 #include "base/basictypes.h"
      9 #include "base/memory/scoped_ptr.h"
     10 #include "base/memory/scoped_vector.h"
     11 #include "base/timer/timer.h"
     12 #include "chrome/browser/ui/app_list/search/mixer.h"
     13 #include "ui/app_list/app_list_model.h"
     14 
     15 class AppListControllerDelegate;
     16 class Profile;
     17 
     18 namespace app_list {
     19 
     20 class History;
     21 class SearchBoxModel;
     22 class SearchProvider;
     23 class SearchResult;
     24 
     25 // Controller that collects query from given SearchBoxModel, dispatches it
     26 // to all search providers, then invokes the mixer to mix and to publish the
     27 // results to the given SearchResults UI model.
     28 class SearchController {
     29  public:
     30   SearchController(Profile* profile,
     31                    SearchBoxModel* search_box,
     32                    AppListModel::SearchResults* results,
     33                    AppListControllerDelegate* list_controller);
     34   ~SearchController();
     35 
     36   void Init();
     37 
     38   void Start();
     39   void Stop();
     40 
     41   void OpenResult(SearchResult* result, int event_flags);
     42   void InvokeResultAction(SearchResult* result,
     43                           int action_index,
     44                           int event_flags);
     45 
     46  private:
     47   typedef ScopedVector<SearchProvider> Providers;
     48 
     49   // Takes ownership of |provider| and associates it with given mixer group.
     50   void AddProvider(Mixer::GroupId group,
     51                    scoped_ptr<SearchProvider> provider);
     52 
     53   // Invoked when the search results are changed.
     54   void OnResultsChanged();
     55 
     56   Profile* profile_;
     57   SearchBoxModel* search_box_;
     58   AppListControllerDelegate* list_controller_;
     59 
     60   bool dispatching_query_;
     61   Providers providers_;
     62   scoped_ptr<Mixer> mixer_;
     63   History* history_;  // BrowserContextKeyedService, not owned.
     64 
     65   base::OneShotTimer<SearchController> stop_timer_;
     66 
     67   DISALLOW_COPY_AND_ASSIGN(SearchController);
     68 };
     69 
     70 }  // namespace app_list
     71 
     72 #endif  // CHROME_BROWSER_UI_APP_LIST_SEARCH_SEARCH_CONTROLLER_H_
     73