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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_RENDERER_PEPPER_PEPPER_FILE_IO_HOST_H_
#define CONTENT_RENDERER_PEPPER_PEPPER_FILE_IO_HOST_H_
#include <string>
#include "base/basictypes.h"
#include "base/callback_forward.h"
#include "base/files/file.h"
#include "base/memory/weak_ptr.h"
#include "base/platform_file.h"
#include "content/browser/renderer_host/pepper/browser_ppapi_host_impl.h"
#include "ipc/ipc_listener.h"
#include "ipc/ipc_platform_file.h"
#include "ppapi/c/pp_file_info.h"
#include "ppapi/c/pp_time.h"
#include "ppapi/host/host_message_context.h"
#include "ppapi/host/resource_host.h"
#include "ppapi/shared_impl/file_io_state_manager.h"
#include "url/gurl.h"
#include "webkit/browser/fileapi/file_system_context.h"
namespace ppapi {
struct FileGrowth;
}
namespace content {
class PepperFileSystemBrowserHost;
class PepperFileIOHost : public ppapi::host::ResourceHost,
public base::SupportsWeakPtr<PepperFileIOHost> {
public:
typedef base::Callback<void (base::File::Error)>
NotifyCloseFileCallback;
PepperFileIOHost(BrowserPpapiHostImpl* host,
PP_Instance instance,
PP_Resource resource);
virtual ~PepperFileIOHost();
// ppapi::host::ResourceHost override.
virtual int32_t OnResourceMessageReceived(
const IPC::Message& msg,
ppapi::host::HostMessageContext* context) OVERRIDE;
struct UIThreadStuff {
UIThreadStuff();
~UIThreadStuff();
base::ProcessId resolved_render_process_id;
scoped_refptr<fileapi::FileSystemContext> file_system_context;
};
private:
int32_t OnHostMsgOpen(ppapi::host::HostMessageContext* context,
PP_Resource file_ref_resource,
int32_t open_flags);
int32_t OnHostMsgTouch(ppapi::host::HostMessageContext* context,
PP_Time last_access_time,
PP_Time last_modified_time);
int32_t OnHostMsgSetLength(ppapi::host::HostMessageContext* context,
int64_t length);
int32_t OnHostMsgClose(ppapi::host::HostMessageContext* context,
const ppapi::FileGrowth& file_growth);
int32_t OnHostMsgFlush(ppapi::host::HostMessageContext* context);
int32_t OnHostMsgRequestOSFileHandle(
ppapi::host::HostMessageContext* context);
void GotPluginAllowedToCallRequestOSFileHandle(
ppapi::host::ReplyMessageContext reply_context,
bool plugin_allowed);
// Callback handlers. These mostly convert the File::Error to the
// PP_Error code and send back the reply. Note that the argument
// ReplyMessageContext is copied so that we have a closure containing all
// necessary information to reply.
void ExecutePlatformGeneralCallback(
ppapi::host::ReplyMessageContext reply_context,
base::File::Error error_code);
void ExecutePlatformOpenFileCallback(
ppapi::host::ReplyMessageContext reply_context,
base::File::Error error_code,
base::PassPlatformFile file,
bool unused_created);
void GotUIThreadStuffForInternalFileSystems(
ppapi::host::ReplyMessageContext reply_context,
int platform_file_flags,
UIThreadStuff ui_thread_stuff);
void DidOpenInternalFile(
ppapi::host::ReplyMessageContext reply_context,
base::File::Error result,
base::PlatformFile file,
const base::Closure& on_close_callback);
void GotResolvedRenderProcessId(
ppapi::host::ReplyMessageContext reply_context,
base::FilePath path,
int platform_file_flags,
base::ProcessId resolved_render_process_id);
void DidOpenQuotaFile(ppapi::host::ReplyMessageContext reply_context,
base::PlatformFile file,
int64_t max_written_offset);
bool CallSetLength(ppapi::host::ReplyMessageContext reply_context,
int64_t length);
void DidCloseFile(base::File::Error error);
void SendOpenErrorReply(ppapi::host::ReplyMessageContext reply_context);
// Adds file_ to |reply_context| with the specified |open_flags|.
bool AddFileToReplyContext(
int32_t open_flags,
ppapi::host::ReplyMessageContext* reply_context) const;
BrowserPpapiHostImpl* browser_ppapi_host_;
RenderProcessHost* render_process_host_;
int render_process_id_;
base::ProcessId resolved_render_process_id_;
base::PlatformFile file_;
int32_t open_flags_;
// The file system type specified in the Open() call. This will be
// PP_FILESYSTEMTYPE_INVALID before open was called. This value does not
// indicate that the open command actually succeeded.
PP_FileSystemType file_system_type_;
base::WeakPtr<PepperFileSystemBrowserHost> file_system_host_;
// Valid only for PP_FILESYSTEMTYPE_LOCAL{PERSISTENT,TEMPORARY}.
scoped_refptr<fileapi::FileSystemContext> file_system_context_;
fileapi::FileSystemURL file_system_url_;
base::Closure on_close_callback_;
int64_t max_written_offset_;
bool check_quota_;
ppapi::FileIOStateManager state_manager_;
scoped_refptr<base::MessageLoopProxy> file_message_loop_;
base::WeakPtrFactory<PepperFileIOHost> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(PepperFileIOHost);
};
} // namespace content
#endif // CONTENT_RENDERER_PEPPER_PEPPER_FILE_IO_HOST_H_
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