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.
5 #ifndef CHROME_BROWSER_SEARCH_INSTANT_SERVICE_H_
6 #define CHROME_BROWSER_SEARCH_INSTANT_SERVICE_H_
13 #include "base/basictypes.h"
14 #include "base/memory/ref_counted.h"
15 #include "base/memory/scoped_ptr.h"
16 #include "base/memory/weak_ptr.h"
17 #include "base/observer_list.h"
18 #include "base/prefs/pref_change_registrar.h"
19 #include "chrome/browser/google/google_url_tracker.h"
20 #include "chrome/browser/history/history_types.h"
21 #include "chrome/browser/ui/search/instant_search_prerenderer.h"
22 #include "chrome/common/instant_types.h"
23 #include "components/browser_context_keyed_service/browser_context_keyed_service.h"
24 #include "content/public/browser/notification_observer.h"
25 #include "content/public/browser/notification_registrar.h"
28 class InstantIOContext;
29 class InstantServiceObserver;
30 class InstantTestBase;
31 class InstantServiceTest;
36 class RenderProcessHost;
43 // Tracks render process host IDs that are associated with Instant.
44 class InstantService : public BrowserContextKeyedService,
45 public content::NotificationObserver {
47 explicit InstantService(Profile* profile);
48 virtual ~InstantService();
50 // Add, remove, and query RenderProcessHost IDs that are associated with
52 void AddInstantProcess(int process_id);
53 bool IsInstantProcess(int process_id) const;
55 // Adds/Removes InstantService observers.
56 void AddObserver(InstantServiceObserver* observer);
57 void RemoveObserver(InstantServiceObserver* observer);
59 #if defined(UNIT_TEST)
60 int GetInstantProcessCount() const {
61 return process_ids_.size();
65 // Most visited item API.
67 // Invoked by the InstantController when the Instant page wants to delete a
69 void DeleteMostVisitedItem(const GURL& url);
71 // Invoked by the InstantController when the Instant page wants to undo the
73 void UndoMostVisitedDeletion(const GURL& url);
75 // Invoked by the InstantController when the Instant page wants to undo all
76 // Most Visited deletions.
77 void UndoAllMostVisitedDeletions();
79 // Invoked by the InstantController to update theme information for NTP.
81 // TODO(kmadhusu): Invoking this from InstantController shouldn't be
82 // necessary. Investigate more and remove this from here.
83 void UpdateThemeInfo();
85 // Invoked by the InstantController to update most visited items details for
87 void UpdateMostVisitedItemsInfo();
89 // Sends the current set of search URLs to a renderer process.
90 void SendSearchURLsToRenderer(content::RenderProcessHost* rph);
92 // Invoked to notify the Instant page that the omnibox start margin has
94 void OnOmniboxStartMarginChanged(int start_margin);
96 InstantSearchPrerenderer* instant_search_prerenderer() {
97 return instant_prerenderer_.get();
100 int omnibox_start_margin() const { return omnibox_start_margin_; }
103 friend class InstantExtendedTest;
104 friend class InstantServiceTest;
105 friend class InstantTestBase;
106 friend class InstantUnitTestBase;
108 FRIEND_TEST_ALL_PREFIXES(InstantExtendedManualTest,
109 MANUAL_SearchesFromFakebox);
110 FRIEND_TEST_ALL_PREFIXES(InstantExtendedTest, ProcessIsolation);
111 FRIEND_TEST_ALL_PREFIXES(InstantServiceTest, SendsSearchURLsToRenderer);
113 // Overridden from BrowserContextKeyedService:
114 virtual void Shutdown() OVERRIDE;
116 // Overridden from content::NotificationObserver:
117 virtual void Observe(int type,
118 const content::NotificationSource& source,
119 const content::NotificationDetails& details) OVERRIDE;
121 // Called when a renderer process is terminated.
122 void OnRendererProcessTerminated(int process_id);
124 // Called when we get new most visited items from TopSites, registered as an
125 // async callback. Parses them and sends them to the renderer via
126 // SendMostVisitedItems.
127 void OnMostVisitedItemsReceived(const history::MostVisitedURLList& data);
129 // Notifies the observer about the last known most visited items.
130 void NotifyAboutMostVisitedItems();
132 // Theme changed notification handler.
133 void OnThemeChanged(ThemeService* theme_service);
135 void OnGoogleURLUpdated(Profile* profile,
136 GoogleURLTracker::UpdatedDetails* details);
138 void OnDefaultSearchProviderChanged(const std::string& pref_name);
140 void ResetInstantSearchPrerenderer();
142 Profile* const profile_;
144 // The process ids associated with Instant processes.
145 std::set<int> process_ids_;
147 // InstantMostVisitedItems sent to the Instant Pages.
148 std::vector<InstantMostVisitedItem> most_visited_items_;
150 // Theme-related data for NTP overlay to adopt themes.
151 scoped_ptr<ThemeBackgroundInfo> theme_info_;
153 // The start-edge margin of the omnibox, used by the Instant page to align
154 // text or assets properly with the omnibox.
155 int omnibox_start_margin_;
157 ObserverList<InstantServiceObserver> observers_;
159 content::NotificationRegistrar registrar_;
161 PrefChangeRegistrar profile_pref_registrar_;
163 scoped_refptr<InstantIOContext> instant_io_context_;
165 // Set to NULL if the default search provider does not support Instant.
166 scoped_ptr<InstantSearchPrerenderer> instant_prerenderer_;
168 // Used for Top Sites async retrieval.
169 base::WeakPtrFactory<InstantService> weak_ptr_factory_;
171 DISALLOW_COPY_AND_ASSIGN(InstantService);
174 #endif // CHROME_BROWSER_SEARCH_INSTANT_SERVICE_H_