OLD | NEW |
| (Empty) |
1 // Copyright (c) 2011 The Native Client 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 SCRIPTING_BRIDGE_H_ | |
6 #define SCRIPTING_BRIDGE_H_ | |
7 | |
8 #include <map> | |
9 #include <string> | |
10 #include <tr1/memory> | |
11 #include <vector> | |
12 | |
13 #include "experimental/conways_life/scripting/callback.h" | |
14 | |
15 namespace scripting { | |
16 | |
17 class MethodCallbackExecutor; | |
18 | |
19 // This class handles the interface between the browser and the NaCl module. | |
20 // There is a single point of entry from the browser: postMessage(). The | |
21 // string passed to postMessage() has this format: | |
22 // 'function_name arg_name0:arg_0 arg_name1:arg1 ...' | |
23 // The arguments have undetermined type; they are placed in a map of argument | |
24 // names and values. Values are all strings, it is up to the target code to | |
25 // do any type coercion. | |
26 // Methods called by the scripting bridge must have a signature like this: | |
27 // void Method(const ScriptingBridge& bridge, | |
28 // const ParameterDictionary&); | |
29 // TODO(dspringer): port this to the real postMessage when it's ready. | |
30 class ScriptingBridge { | |
31 public: | |
32 // Shared pointer type used in the method map. | |
33 typedef std::tr1::shared_ptr<MethodCallbackExecutor> | |
34 SharedMethodCallbackExecutor; | |
35 | |
36 virtual ~ScriptingBridge() {} | |
37 | |
38 // Causes |method_name| to be published as a method that can be called via | |
39 // postMessage() from the browser. Associates this method with |method|. | |
40 bool AddMethodNamed(const std::string& method_name, | |
41 SharedMethodCallbackExecutor method); | |
42 | |
43 bool InvokeMethod(const std::string& method); | |
44 | |
45 private: | |
46 typedef std::map<std::string, SharedMethodCallbackExecutor> MethodDictionary; | |
47 | |
48 MethodDictionary method_dictionary_; | |
49 }; | |
50 | |
51 } // namespace scripting | |
52 #endif // SCRIPTING_BRIDGE_H_ | |
OLD | NEW |