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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_SITE_TILES_INTERNALS_MESSAGE_HANDLER_CLIENT_H _ | |
6 #define COMPONENTS_NTP_TILES_WEBUI_SITE_TILES_INTERNALS_MESSAGE_HANDLER_CLIENT_H _ | |
7 | |
8 #include <memory> | |
9 #include <string> | |
10 #include <vector> | |
11 | |
12 #include "base/callback_forward.h" | |
13 #include "base/macros.h" | |
14 #include "components/ntp_tiles/ntp_tile_source.h" | |
15 | |
16 class PrefService; | |
17 | |
18 namespace base { | |
19 class Value; | |
20 class ListValue; | |
21 class SequencedWorkerPool; | |
22 } // namespace base | |
23 | |
24 namespace ntp_tiles { | |
25 | |
26 class MostVisitedSites; | |
27 class PopularSites; | |
28 | |
29 // Implemented by embedders to hook up SiteTilesInternalsMessageHandler. | |
30 class SiteTilesInternalsMessageHandlerClient { | |
31 public: | |
32 // Returns the blocking pool for the embedder. | |
33 virtual base::SequencedWorkerPool* GetBlockingPool() = 0; | |
34 | |
35 // Returns the PrefService for the embedder and containing WebUI page. | |
36 virtual PrefService* GetPrefs() = 0; | |
37 | |
38 // Returns true if the given source is enabled (even if, in practice, none of | |
39 // the tiles would come from it). | |
40 virtual bool IsSourceEnabled(NTPTileSource source) = 0; | |
41 | |
42 // Creates a new MostVisited based on the context pf the WebUI page. | |
Marc Treib
2016/12/09 10:52:12
s/MostVisited/MostVisitedSites/
sfiera
2016/12/09 17:35:28
Done.
| |
43 virtual std::unique_ptr<ntp_tiles::MostVisitedSites> | |
44 MakeMostVisitedSites() = 0; | |
45 | |
46 // Creates a new PopularSites based on the context pf the WebUI page. | |
47 virtual std::unique_ptr<ntp_tiles::PopularSites> MakePopularSites() = 0; | |
48 | |
49 // Registers a callback in Javascript. See content::WebUI and web::WebUIIOS. | |
50 virtual void RegisterMessageCallback( | |
51 const std::string& message, | |
52 const base::Callback<void(const base::ListValue*)>& callback) = 0; | |
53 | |
54 // Invokes a function in Javascript. See content::WebUI and web::WebUIIOS. | |
55 virtual void CallJavascriptFunctionVector( | |
56 const std::string& name, | |
57 const std::vector<const base::Value*>& values) = 0; | |
58 | |
59 // Helper function for CallJavascriptFunctionVector(). | |
Marc Treib
2016/12/09 10:52:12
nit: This is really the main API, but the comment
sfiera
2016/12/09 17:35:28
Ah, I meant "helper for calling", not "helper for
Marc Treib
2016/12/12 09:42:18
Yup SG, thanks!
| |
60 template <typename... Arg> | |
61 void CallJavascriptFunction(const std::string& name, const Arg&... arg) { | |
62 CallJavascriptFunctionVector(name, {&arg...}); | |
63 } | |
64 | |
65 protected: | |
66 SiteTilesInternalsMessageHandlerClient(); | |
67 virtual ~SiteTilesInternalsMessageHandlerClient(); | |
68 | |
69 private: | |
70 DISALLOW_COPY_AND_ASSIGN(SiteTilesInternalsMessageHandlerClient); | |
71 }; | |
72 | |
73 } // namespace ntp_tiles | |
74 | |
75 #endif // COMPONENTS_NTP_TILES_WEBUI_SITE_TILES_INTERNALS_MESSAGE_HANDLER_CLIEN T_H_ | |
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