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1 // Copyright (c) 2012 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 PPAPI_SHARED_IMPL_PPB_FILE_REF_SHARED_H_ | |
6 #define PPAPI_SHARED_IMPL_PPB_FILE_REF_SHARED_H_ | |
7 | |
8 #include <string> | |
9 | |
10 #include "base/compiler_specific.h" | |
11 #include "ppapi/shared_impl/resource.h" | |
12 #include "ppapi/thunk/ppb_file_ref_api.h" | |
13 | |
14 namespace ppapi { | |
15 | |
16 class StringVar; | |
17 | |
18 // FileRefs are created in a number of places and they include a number of | |
19 // return values. This struct encapsulates everything in one place. | |
20 struct PPB_FileRef_CreateInfo { | |
21 PPB_FileRef_CreateInfo() | |
22 : file_system_type(PP_FILESYSTEMTYPE_EXTERNAL), | |
23 file_system_plugin_resource(0) {} | |
24 | |
25 ppapi::HostResource resource; | |
26 int file_system_type; // One of PP_FileSystemType values. | |
27 std::string path; | |
28 std::string name; | |
29 | |
30 // Since FileRef needs to hold a FileSystem reference, we need to pass the | |
31 // resource in this CreateInfo. Note that this is a plugin resource as | |
32 // FileSystem is already in new design. | |
33 PP_Resource file_system_plugin_resource; | |
34 }; | |
35 | |
36 // This class provides the shared implementation of a FileRef. The functions | |
37 // that actually "do stuff" like Touch and MakeDirectory are implemented | |
38 // differently for the proxied and non-proxied derived classes. | |
39 class PPAPI_SHARED_EXPORT PPB_FileRef_Shared | |
40 : public Resource, | |
41 public thunk::PPB_FileRef_API { | |
42 public: | |
43 PPB_FileRef_Shared(ResourceObjectType type, | |
44 const PPB_FileRef_CreateInfo& info); | |
45 virtual ~PPB_FileRef_Shared(); | |
46 | |
47 // Resource overrides. | |
48 virtual thunk::PPB_FileRef_API* AsPPB_FileRef_API() OVERRIDE; | |
49 | |
50 // PPB_FileRef_API implementation (partial). | |
51 virtual PP_FileSystemType GetFileSystemType() const OVERRIDE; | |
52 virtual PP_Var GetName() const OVERRIDE; | |
53 virtual PP_Var GetPath() const OVERRIDE; | |
54 virtual const PPB_FileRef_CreateInfo& GetCreateInfo() const OVERRIDE; | |
55 virtual PP_Var GetAbsolutePath() = 0; | |
56 | |
57 private: | |
58 PPB_FileRef_CreateInfo create_info_; | |
59 | |
60 // Lazily initialized vars created from the create_info_. This is so we can | |
61 // return the identical string object every time they're requested. | |
62 mutable scoped_refptr<StringVar> name_var_; | |
63 mutable scoped_refptr<StringVar> path_var_; | |
64 | |
65 DISALLOW_IMPLICIT_CONSTRUCTORS(PPB_FileRef_Shared); | |
66 }; | |
67 | |
68 } // namespace ppapi | |
69 | |
70 #endif // PPAPI_SHARED_IMPL_PPB_FILE_REF_SHARED_H_ | |
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