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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef EXTENSIONS_RENDERER_REQUEST_SENDER_H_ | 5 #ifndef EXTENSIONS_RENDERER_REQUEST_SENDER_H_ |
6 #define EXTENSIONS_RENDERER_REQUEST_SENDER_H_ | 6 #define EXTENSIONS_RENDERER_REQUEST_SENDER_H_ |
7 | 7 |
8 #include <map> | 8 #include <map> |
9 #include <string> | 9 #include <string> |
10 | 10 |
11 #include "base/macros.h" | 11 #include "base/macros.h" |
12 #include "base/memory/linked_ptr.h" | 12 #include "base/memory/linked_ptr.h" |
13 #include "v8/include/v8.h" | 13 #include "v8/include/v8.h" |
14 | 14 |
| 15 struct ExtensionHostMsg_Request_Params; |
| 16 |
15 namespace base { | 17 namespace base { |
16 class ListValue; | 18 class ListValue; |
17 } | 19 } |
18 | 20 |
| 21 namespace content { |
| 22 class RenderFrame; |
| 23 } |
| 24 |
19 namespace extensions { | 25 namespace extensions { |
20 class ScriptContext; | 26 class ScriptContext; |
21 | 27 |
22 struct PendingRequest; | 28 struct PendingRequest; |
23 | 29 |
24 // Responsible for sending requests for named extension API functions to the | 30 // Responsible for sending requests for named extension API functions to the |
25 // extension host and routing the responses back to the caller. | 31 // extension host and routing the responses back to the caller. |
26 class RequestSender { | 32 class RequestSender { |
27 public: | 33 public: |
28 // Source represents a user of RequestSender. Every request is associated with | 34 // Source represents a user of RequestSender. Every request is associated with |
(...skipping 21 matching lines...) Expand all Loading... |
50 | 56 |
51 private: | 57 private: |
52 RequestSender* const request_sender_; | 58 RequestSender* const request_sender_; |
53 const int tab_id_; | 59 const int tab_id_; |
54 const int previous_tab_id_; | 60 const int previous_tab_id_; |
55 | 61 |
56 DISALLOW_COPY_AND_ASSIGN(ScopedTabID); | 62 DISALLOW_COPY_AND_ASSIGN(ScopedTabID); |
57 }; | 63 }; |
58 | 64 |
59 RequestSender(); | 65 RequestSender(); |
60 ~RequestSender(); | 66 virtual ~RequestSender(); |
61 | 67 |
62 // In order to avoid collision, all |request_id|s passed into StartRequest() | 68 // In order to avoid collision, all |request_id|s passed into StartRequest() |
63 // should be generated by this method. | 69 // should be generated by this method. |
64 int GetNextRequestId() const; | 70 int GetNextRequestId() const; |
65 | 71 |
66 // Makes a call to the API function |name| that is to be handled by the | 72 // Makes a call to the API function |name| that is to be handled by the |
67 // extension host. The response to this request will be received in | 73 // extension host. The response to this request will be received in |
68 // HandleResponse(). | 74 // HandleResponse(). |
69 // TODO(koz): Remove |request_id| and generate that internally. | 75 // TODO(koz): Remove |request_id| and generate that internally. |
70 // There are multiple of these per render view though, so we'll | 76 // There are multiple of these per render view though, so we'll |
71 // need to vend the IDs centrally. | 77 // need to vend the IDs centrally. |
72 void StartRequest(Source* source, | 78 void StartRequest(Source* source, |
73 const std::string& name, | 79 const std::string& name, |
74 int request_id, | 80 int request_id, |
75 bool has_callback, | 81 bool has_callback, |
76 bool for_io_thread, | 82 bool for_io_thread, |
77 base::ListValue* value_args); | 83 base::ListValue* value_args); |
78 | 84 |
| 85 // Sends the IPC to extension host for the API function that is described |
| 86 // in |params|. |
| 87 virtual void SendRequest(content::RenderFrame* render_frame, |
| 88 bool for_io_thread, |
| 89 ExtensionHostMsg_Request_Params& params); |
| 90 |
79 // Handles responses from the extension host to calls made by StartRequest(). | 91 // Handles responses from the extension host to calls made by StartRequest(). |
80 void HandleResponse(int request_id, | 92 void HandleResponse(int request_id, |
81 bool success, | 93 bool success, |
82 const base::ListValue& response, | 94 const base::ListValue& response, |
83 const std::string& error); | 95 const std::string& error); |
84 | 96 |
85 // Notifies this that a request source is no longer valid. | 97 // Notifies this that a request source is no longer valid. |
86 // TODO(kalman): Do this in a generic/safe way. | 98 // TODO(kalman): Do this in a generic/safe way. |
87 void InvalidateSource(Source* source); | 99 void InvalidateSource(Source* source); |
88 | 100 |
89 private: | 101 private: |
90 friend class ScopedTabID; | 102 friend class ScopedTabID; |
91 typedef std::map<int, linked_ptr<PendingRequest> > PendingRequestMap; | 103 typedef std::map<int, linked_ptr<PendingRequest> > PendingRequestMap; |
92 | 104 |
93 void InsertRequest(int request_id, PendingRequest* pending_request); | 105 void InsertRequest(int request_id, PendingRequest* pending_request); |
94 linked_ptr<PendingRequest> RemoveRequest(int request_id); | 106 linked_ptr<PendingRequest> RemoveRequest(int request_id); |
95 | 107 |
96 PendingRequestMap pending_requests_; | 108 PendingRequestMap pending_requests_; |
97 | 109 |
98 int source_tab_id_; // Id of the tab sending the request, or -1 if no tab. | 110 int source_tab_id_; // Id of the tab sending the request, or -1 if no tab. |
99 | 111 |
100 DISALLOW_COPY_AND_ASSIGN(RequestSender); | 112 DISALLOW_COPY_AND_ASSIGN(RequestSender); |
101 }; | 113 }; |
102 | 114 |
103 } // namespace extensions | 115 } // namespace extensions |
104 | 116 |
105 #endif // EXTENSIONS_RENDERER_REQUEST_SENDER_H_ | 117 #endif // EXTENSIONS_RENDERER_REQUEST_SENDER_H_ |
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