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_ 71
