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 "storage/browser/fileapi/file_system_url.h" 19 20namespace content { 21class PepperFileRefHost; 22class PepperFileSystemBrowserHost; 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. 27class PepperFileRefBackend { 28 public: 29 virtual ~PepperFileRefBackend(); 30 31 virtual int32_t MakeDirectory(ppapi::host::ReplyMessageContext context, 32 int32_t make_directory_flags) = 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(ppapi::host::ReplyMessageContext context) = 0; 43 virtual storage::FileSystemURL GetFileSystemURL() const = 0; 44 virtual base::FilePath GetExternalFilePath() const = 0; 45 46 // Returns an error from the pp_errors.h enum. 47 virtual int32_t CanRead() const = 0; 48 virtual int32_t CanWrite() const = 0; 49 virtual int32_t CanCreate() const = 0; 50 virtual int32_t CanReadWrite() const = 0; 51}; 52 53class CONTENT_EXPORT PepperFileRefHost 54 : public ppapi::host::ResourceHost, 55 public base::SupportsWeakPtr<PepperFileRefHost> { 56 public: 57 PepperFileRefHost(BrowserPpapiHost* host, 58 PP_Instance instance, 59 PP_Resource resource, 60 PP_Resource file_system, 61 const std::string& internal_path); 62 63 PepperFileRefHost(BrowserPpapiHost* host, 64 PP_Instance instance, 65 PP_Resource resource, 66 const base::FilePath& external_path); 67 68 virtual ~PepperFileRefHost(); 69 70 // ResourceHost overrides. 71 virtual int32_t OnResourceMessageReceived( 72 const IPC::Message& msg, 73 ppapi::host::HostMessageContext* context) OVERRIDE; 74 virtual bool IsFileRefHost() OVERRIDE; 75 76 // Required to support Rename(). 77 PP_FileSystemType GetFileSystemType() const; 78 storage::FileSystemURL GetFileSystemURL() const; 79 80 // Required to support FileIO. 81 base::FilePath GetExternalFilePath() const; 82 base::WeakPtr<PepperFileSystemBrowserHost> GetFileSystemHost() const; 83 84 int32_t CanRead() const; 85 int32_t CanWrite() const; 86 int32_t CanCreate() const; 87 int32_t CanReadWrite() const; 88 89 private: 90 int32_t OnMakeDirectory(ppapi::host::HostMessageContext* context, 91 int32_t make_directory_flags); 92 int32_t OnTouch(ppapi::host::HostMessageContext* context, 93 PP_Time last_access_time, 94 PP_Time last_modified_time); 95 int32_t OnDelete(ppapi::host::HostMessageContext* context); 96 int32_t OnRename(ppapi::host::HostMessageContext* context, 97 PP_Resource new_file_ref); 98 int32_t OnQuery(ppapi::host::HostMessageContext* context); 99 int32_t OnReadDirectoryEntries(ppapi::host::HostMessageContext* context); 100 int32_t OnGetAbsolutePath(ppapi::host::HostMessageContext* context); 101 102 BrowserPpapiHost* host_; 103 scoped_ptr<PepperFileRefBackend> backend_; 104 base::WeakPtr<PepperFileSystemBrowserHost> file_system_host_; 105 PP_FileSystemType fs_type_; 106 107 DISALLOW_COPY_AND_ASSIGN(PepperFileRefHost); 108}; 109 110} // namespace content 111 112#endif // CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_FILE_REF_HOST_H_ 113