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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 CONTENT_RENDERER_PEPPER_PEPPER_FILE_IO_HOST_H_ | |
6 #define CONTENT_RENDERER_PEPPER_PEPPER_FILE_IO_HOST_H_ | |
7 | |
8 #include <string> | |
9 | |
10 #include "base/basictypes.h" | |
11 #include "base/callback_forward.h" | |
12 #include "base/memory/weak_ptr.h" | |
13 #include "base/platform_file.h" | |
14 #include "content/public/renderer/renderer_ppapi_host.h" | |
15 #include "ipc/ipc_listener.h" | |
16 #include "ipc/ipc_platform_file.h" | |
17 #include "ppapi/c/pp_file_info.h" | |
18 #include "ppapi/c/pp_time.h" | |
19 #include "ppapi/host/host_message_context.h" | |
20 #include "ppapi/host/resource_host.h" | |
21 #include "ppapi/shared_impl/file_io_state_manager.h" | |
22 #include "url/gurl.h" | |
23 #include "webkit/common/quota/quota_types.h" | |
24 | |
25 using ppapi::host::ReplyMessageContext; | |
26 | |
27 namespace content { | |
28 class QuotaFileIO; | |
29 | |
30 class PepperFileIOHost : public ppapi::host::ResourceHost, | |
31 public base::SupportsWeakPtr<PepperFileIOHost>, | |
32 public IPC::Listener { | |
33 public: | |
34 typedef base::Callback<void (base::PlatformFileError)> | |
35 NotifyCloseFileCallback; | |
36 | |
37 PepperFileIOHost(RendererPpapiHost* host, | |
38 PP_Instance instance, | |
39 PP_Resource resource); | |
40 virtual ~PepperFileIOHost(); | |
41 | |
42 // ppapi::host::ResourceHost override. | |
43 virtual int32_t OnResourceMessageReceived( | |
44 const IPC::Message& msg, | |
45 ppapi::host::HostMessageContext* context) OVERRIDE; | |
46 | |
47 private: | |
48 // IPC::Listener implementation. | |
49 virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; | |
50 | |
51 void OnAsyncFileOpened( | |
52 base::PlatformFileError error_code, | |
53 IPC::PlatformFileForTransit file_for_transit); | |
54 | |
55 int32_t OnHostMsgOpen(ppapi::host::HostMessageContext* context, | |
56 PP_Resource file_ref_resource, | |
57 int32_t open_flags); | |
58 int32_t OnHostMsgTouch(ppapi::host::HostMessageContext* context, | |
59 PP_Time last_access_time, | |
60 PP_Time last_modified_time); | |
61 int32_t OnHostMsgWrite(ppapi::host::HostMessageContext* context, | |
62 int64_t offset, | |
63 const std::string& buffer); | |
64 int32_t OnHostMsgSetLength(ppapi::host::HostMessageContext* context, | |
65 int64_t length); | |
66 int32_t OnHostMsgClose(ppapi::host::HostMessageContext* context); | |
67 int32_t OnHostMsgFlush(ppapi::host::HostMessageContext* context); | |
68 // Private API. | |
69 int32_t OnHostMsgRequestOSFileHandle( | |
70 ppapi::host::HostMessageContext* context); | |
71 | |
72 // Callback handlers. These mostly convert the PlatformFileError to the | |
73 // PP_Error code and send back the reply. Note that the argument | |
74 // ReplyMessageContext is copied so that we have a closure containing all | |
75 // necessary information to reply. | |
76 void ExecutePlatformGeneralCallback(ReplyMessageContext reply_context, | |
77 base::PlatformFileError error_code); | |
78 void ExecutePlatformOpenFileCallback(ReplyMessageContext reply_context, | |
79 base::PlatformFileError error_code, | |
80 base::PassPlatformFile file); | |
81 void ExecutePlatformOpenFileSystemURLCallback( | |
82 ReplyMessageContext reply_context, | |
83 base::PlatformFileError error_code, | |
84 base::PassPlatformFile file, | |
85 quota::QuotaLimitType quota_policy, | |
86 const NotifyCloseFileCallback& callback); | |
87 void ExecutePlatformQueryCallback(ReplyMessageContext reply_context, | |
88 base::PlatformFileError error_code, | |
89 const base::PlatformFileInfo& file_info); | |
90 void ExecutePlatformReadCallback(ReplyMessageContext reply_context, | |
91 base::PlatformFileError error_code, | |
92 const char* data, int bytes_read); | |
93 void ExecutePlatformWriteCallback(ReplyMessageContext reply_context, | |
94 base::PlatformFileError error_code, | |
95 int bytes_written); | |
96 | |
97 RendererPpapiHost* renderer_ppapi_host_; | |
98 base::PlatformFile file_; | |
99 | |
100 // The file system type specified in the Open() call. This will be | |
101 // PP_FILESYSTEMTYPE_INVALID before open was called. This value does not | |
102 // indicate that the open command actually succeeded. | |
103 PP_FileSystemType file_system_type_; | |
104 | |
105 // Valid only for PP_FILESYSTEMTYPE_LOCAL{PERSISTENT,TEMPORARY}. | |
106 GURL file_system_url_; | |
107 | |
108 // Used to check if we can pass file handle to plugins. | |
109 quota::QuotaLimitType quota_policy_; | |
110 | |
111 // Callback function for notifying when the file handle is closed. | |
112 NotifyCloseFileCallback notify_close_file_callback_; | |
113 | |
114 // Pointer to a QuotaFileIO instance, which is valid only while a file | |
115 // of type PP_FILESYSTEMTYPE_LOCAL{PERSISTENT,TEMPORARY} is opened. | |
116 scoped_ptr<QuotaFileIO> quota_file_io_; | |
117 | |
118 int32_t open_flags_; | |
119 | |
120 ppapi::FileIOStateManager state_manager_; | |
121 | |
122 int routing_id_; | |
123 | |
124 base::Callback<void(base::PlatformFileError, base::PassPlatformFile)> | |
125 pending_open_callback_; | |
126 | |
127 base::WeakPtrFactory<PepperFileIOHost> weak_factory_; | |
128 | |
129 DISALLOW_COPY_AND_ASSIGN(PepperFileIOHost); | |
130 }; | |
131 | |
132 } // namespace content | |
133 | |
134 #endif // CONTENT_RENDERER_PEPPER_PEPPER_FILE_IO_HOST_H_ | |
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