1 // Copyright 2013 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 CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_FILE_REF_HOST_H_ 6 #define CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_FILE_REF_HOST_H_ 7 8 #include <string> 9 10 #include "base/memory/weak_ptr.h" 11 #include "content/public/browser/browser_ppapi_host.h" 12 #include "ppapi/c/pp_file_info.h" 13 #include "ppapi/c/pp_instance.h" 14 #include "ppapi/c/pp_resource.h" 15 #include "ppapi/c/pp_time.h" 16 #include "ppapi/host/host_message_context.h" 17 #include "ppapi/host/resource_host.h" 18 #include "webkit/browser/fileapi/file_system_url.h" 19 20 namespace content { 21 22 class PepperFileRefHost; 23 24 // Internal and external filesystems have very different codepaths for 25 // performing FileRef operations. The logic is split into separate classes 26 // to make it easier to read. 27 class PepperFileRefBackend { 28 public: 29 virtual ~PepperFileRefBackend(); 30 31 virtual int32_t MakeDirectory(ppapi::host::ReplyMessageContext context, 32 bool make_ancestors) = 0; 33 virtual int32_t Touch(ppapi::host::ReplyMessageContext context, 34 PP_Time last_accessed_time, 35 PP_Time last_modified_time) = 0; 36 virtual int32_t Delete(ppapi::host::ReplyMessageContext context) = 0; 37 virtual int32_t Rename(ppapi::host::ReplyMessageContext context, 38 PepperFileRefHost* new_file_ref) = 0; 39 virtual int32_t Query(ppapi::host::ReplyMessageContext context) = 0; 40 virtual int32_t ReadDirectoryEntries( 41 ppapi::host::ReplyMessageContext context) = 0; 42 virtual int32_t GetAbsolutePath( 43 ppapi::host::ReplyMessageContext context) = 0; 44 virtual fileapi::FileSystemURL GetFileSystemURL() const = 0; 45 virtual std::string GetFileSystemURLSpec() const = 0; 46 virtual base::FilePath GetExternalPath() const = 0; 47 48 // Returns an error from the pp_errors.h enum. 49 virtual int32_t CanRead() const = 0; 50 virtual int32_t CanWrite() const = 0; 51 virtual int32_t CanCreate() const = 0; 52 virtual int32_t CanReadWrite() const = 0; 53 }; 54 55 class CONTENT_EXPORT PepperFileRefHost 56 : public ppapi::host::ResourceHost, 57 public base::SupportsWeakPtr<PepperFileRefHost> { 58 public: 59 PepperFileRefHost(BrowserPpapiHost* host, 60 PP_Instance instance, 61 PP_Resource resource, 62 PP_Resource file_system, 63 const std::string& internal_path); 64 65 PepperFileRefHost(BrowserPpapiHost* host, 66 PP_Instance instance, 67 PP_Resource resource, 68 const base::FilePath& external_path); 69 70 virtual ~PepperFileRefHost(); 71 72 // ResourceHost overrides. 73 virtual int32_t OnResourceMessageReceived( 74 const IPC::Message& msg, 75 ppapi::host::HostMessageContext* context) OVERRIDE; 76 virtual bool IsFileRefHost() OVERRIDE; 77 78 // Required to support Rename(). 79 PP_FileSystemType GetFileSystemType() const; 80 fileapi::FileSystemURL GetFileSystemURL() const; 81 82 // Required to support FileIO. 83 std::string GetFileSystemURLSpec() const; 84 base::FilePath GetExternalPath() const; 85 86 int32_t CanRead() const; 87 int32_t CanWrite() const; 88 int32_t CanCreate() const; 89 int32_t CanReadWrite() const; 90 91 private: 92 int32_t OnMakeDirectory(ppapi::host::HostMessageContext* context, 93 bool make_ancestors); 94 int32_t OnTouch(ppapi::host::HostMessageContext* context, 95 PP_Time last_access_time, 96 PP_Time last_modified_time); 97 int32_t OnDelete(ppapi::host::HostMessageContext* context); 98 int32_t OnRename(ppapi::host::HostMessageContext* context, 99 PP_Resource new_file_ref); 100 int32_t OnQuery(ppapi::host::HostMessageContext* context); 101 int32_t OnReadDirectoryEntries(ppapi::host::HostMessageContext* context); 102 int32_t OnGetAbsolutePath(ppapi::host::HostMessageContext* context); 103 104 BrowserPpapiHost* host_; 105 scoped_ptr<PepperFileRefBackend> backend_; 106 PP_FileSystemType fs_type_; 107 108 DISALLOW_COPY_AND_ASSIGN(PepperFileRefHost); 109 }; 110 111 } // namespace content 112 113 #endif // CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_FILE_REF_HOST_H_ 114
