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1 // Copyright 2016 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 COMPONENTS_NTP_TILES_WEBUI_NTP_TILES_HANDLER_H_ | |
6 #define COMPONENTS_NTP_TILES_WEBUI_NTP_TILES_HANDLER_H_ | |
Marc Treib
2016/12/12 10:51:22
Doesn't match the file name.
sfiera
2016/12/12 16:08:32
Done.
| |
7 | |
8 #include <memory> | |
9 #include <string> | |
10 | |
11 #include "base/macros.h" | |
12 #include "base/memory/weak_ptr.h" | |
13 #include "components/ntp_tiles/most_visited_sites.h" | |
14 | |
15 namespace base { | |
16 class ListValue; | |
17 } // namespace base | |
18 | |
19 namespace ntp_tiles { | |
20 | |
21 class MostVisitedSites; | |
22 class NTPTilesInternalsMessageHandlerClient; | |
23 | |
24 // Implements the WebUI message handler for chrome://ntp-tiles-internals/ | |
25 // | |
26 // Because content and iOS use different implementations of WebUI, this class | |
27 // implements the generic portion and depends on the embedder to inject a bridge | |
28 // to the embedder's API. It cannot itself implement either API directly. | |
29 class NTPTilesInternalsMessageHandler : public MostVisitedSites::Observer { | |
30 public: | |
31 explicit NTPTilesInternalsMessageHandler(); | |
Marc Treib
2016/12/12 10:51:22
nit: explicit not needed
sfiera
2016/12/12 16:08:32
Done.
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32 ~NTPTilesInternalsMessageHandler() override; | |
33 | |
34 // Called when the WebUI page's JavaScript has loaded and it is ready to | |
35 // receive RegisterMessageCallback() calls. | |
36 void RegisterMessages(NTPTilesInternalsMessageHandlerClient* client); | |
Marc Treib
2016/12/12 10:51:22
|client| must outlive us.
sfiera
2016/12/12 16:08:32
Done.
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37 | |
38 private: | |
39 // Callbacks registered in RegisterMessages(). | |
40 void HandleRegisterForEvents(const base::ListValue* args); | |
41 void HandleUpdate(const base::ListValue* args); | |
42 | |
43 void SendSourceInfo(); | |
44 void SendTiles(const NTPTilesVector& tiles); | |
45 | |
46 // MostVisitedSites::Observer. | |
47 void OnMostVisitedURLsAvailable(const NTPTilesVector& tiles) override; | |
48 void OnIconMadeAvailable(const GURL& site_url) override; | |
49 | |
50 // Bridge to embedder's API. | |
51 NTPTilesInternalsMessageHandlerClient* client_; | |
52 | |
53 int site_count_; | |
54 std::unique_ptr<MostVisitedSites> most_visited_sites_; | |
55 | |
56 DISALLOW_COPY_AND_ASSIGN(NTPTilesInternalsMessageHandler); | |
57 }; | |
58 | |
59 } // namespace ntp_tiles | |
60 | |
61 #endif // COMPONENTS_NTP_TILES_WEBUI_NTP_TILES_HANDLER_H_ | |
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