src/chrome/browser/ui/app_list/search/search_controller.h

   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 #include "ui/app_list/speech_ui_model_observer.h"
  15
  16 class AppListControllerDelegate;
  17 class Profile;
  18
  19 namespace app_list {
  20
  21 class History;
  22 class SearchBoxModel;
  23 class SearchProvider;
  24 class SearchResult;
  25 class SpeechUIModel;
  26
  27 // Controller that collects query from given SearchBoxModel, dispatches it
  28 // to all search providers, then invokes the mixer to mix and to publish the
  29 // results to the given SearchResults UI model.
  30 class SearchController : public SpeechUIModelObserver {
  31  public:
  32   SearchController(Profile* profile,
  33                    SearchBoxModel* search_box,
  34                    AppListModel::SearchResults* results,
  35                    SpeechUIModel* speech_ui,
  36                    AppListControllerDelegate* list_controller);
  37   virtual ~SearchController();
  38
  39   void Init();
  40
  41   void Start();
  42   void Stop();
  43
  44   void OpenResult(SearchResult* result, int event_flags);
  45   void InvokeResultAction(SearchResult* result,
  46                           int action_index,
  47                           int event_flags);
  48
  49  private:
  50   typedef ScopedVector<SearchProvider> Providers;
  51
  52   // Takes ownership of |provider| and associates it with given mixer group.
  53   void AddProvider(Mixer::GroupId group,
  54                    scoped_ptr<SearchProvider> provider);
  55
  56   // Invoked when the search results are changed.
  57   void OnResultsChanged();
  58
  59   // SpeechUIModelObserver overrides:
  60   virtual void OnSpeechRecognitionStateChanged(
  61       SpeechRecognitionState new_state) OVERRIDE;
  62
  63   Profile* profile_;
  64   SearchBoxModel* search_box_;
  65   SpeechUIModel* speech_ui_;
  66   AppListControllerDelegate* list_controller_;
  67
  68   bool dispatching_query_;
  69   Providers providers_;
  70   scoped_ptr<Mixer> mixer_;
  71   History* history_;  // KeyedService, not owned.
  72
  73   base::OneShotTimer<SearchController> stop_timer_;
  74
  75   DISALLOW_COPY_AND_ASSIGN(SearchController);
  76 };
  77
  78 }  // namespace app_list
  79
  80 #endif  // CHROME_BROWSER_UI_APP_LIST_SEARCH_SEARCH_CONTROLLER_H_