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// Copyright (c) 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.
#include "ppapi/proxy/file_system_resource.h"
#include "base/bind.h"
#include "ipc/ipc_message.h"
#include "ppapi/c/pp_errors.h"
#include "ppapi/proxy/ppapi_messages.h"
#include "ppapi/shared_impl/tracked_callback.h"
using ppapi::thunk::PPB_FileSystem_API;
namespace ppapi {
namespace proxy {
FileSystemResource::FileSystemResource(Connection connection,
PP_Instance instance,
PP_FileSystemType type)
: PluginResource(connection, instance),
type_(type),
called_open_(false),
callback_count_(0),
callback_result_(PP_OK) {
DCHECK(type_ != PP_FILESYSTEMTYPE_INVALID);
SendCreate(RENDERER, PpapiHostMsg_FileSystem_Create(type_));
SendCreate(BROWSER, PpapiHostMsg_FileSystem_Create(type_));
}
FileSystemResource::FileSystemResource(Connection connection,
PP_Instance instance,
int pending_renderer_id,
int pending_browser_id,
PP_FileSystemType type)
: PluginResource(connection, instance),
type_(type),
called_open_(true),
callback_count_(0),
callback_result_(PP_OK) {
DCHECK(type_ != PP_FILESYSTEMTYPE_INVALID);
AttachToPendingHost(RENDERER, pending_renderer_id);
AttachToPendingHost(BROWSER, pending_browser_id);
}
FileSystemResource::~FileSystemResource() {
}
PPB_FileSystem_API* FileSystemResource::AsPPB_FileSystem_API() {
return this;
}
int32_t FileSystemResource::Open(int64_t expected_size,
scoped_refptr<TrackedCallback> callback) {
DCHECK(type_ != PP_FILESYSTEMTYPE_ISOLATED);
if (called_open_)
return PP_ERROR_FAILED;
called_open_ = true;
Call<PpapiPluginMsg_FileSystem_OpenReply>(RENDERER,
PpapiHostMsg_FileSystem_Open(expected_size),
base::Bind(&FileSystemResource::OpenComplete,
this,
callback));
Call<PpapiPluginMsg_FileSystem_OpenReply>(BROWSER,
PpapiHostMsg_FileSystem_Open(expected_size),
base::Bind(&FileSystemResource::OpenComplete,
this,
callback));
return PP_OK_COMPLETIONPENDING;
}
PP_FileSystemType FileSystemResource::GetType() {
return type_;
}
int32_t FileSystemResource::InitIsolatedFileSystem(
const std::string& fsid,
PP_IsolatedFileSystemType_Private type,
const base::Callback<void(int32_t)>& callback) {
// This call is mutually exclusive with Open() above, so we can reuse the
// called_open state.
DCHECK(type_ == PP_FILESYSTEMTYPE_ISOLATED);
if (called_open_)
return PP_ERROR_FAILED;
called_open_ = true;
Call<PpapiPluginMsg_FileSystem_InitIsolatedFileSystemReply>(RENDERER,
PpapiHostMsg_FileSystem_InitIsolatedFileSystem(fsid, type),
base::Bind(&FileSystemResource::InitIsolatedFileSystemComplete,
this,
callback));
Call<PpapiPluginMsg_FileSystem_InitIsolatedFileSystemReply>(BROWSER,
PpapiHostMsg_FileSystem_InitIsolatedFileSystem(fsid, type),
base::Bind(&FileSystemResource::InitIsolatedFileSystemComplete,
this,
callback));
return PP_OK_COMPLETIONPENDING;
}
void FileSystemResource::OpenComplete(
scoped_refptr<TrackedCallback> callback,
const ResourceMessageReplyParams& params) {
++callback_count_;
// Prioritize worse result since only one status can be returned.
if (params.result() != PP_OK)
callback_result_ = params.result();
// Received callback from browser and renderer.
if (callback_count_ == 2)
callback->Run(callback_result_);
}
void FileSystemResource::InitIsolatedFileSystemComplete(
const base::Callback<void(int32_t)>& callback,
const ResourceMessageReplyParams& params) {
++callback_count_;
// Prioritize worse result since only one status can be returned.
if (params.result() != PP_OK)
callback_result_ = params.result();
// Received callback from browser and renderer.
if (callback_count_ == 2)
callback.Run(callback_result_);
}
} // namespace proxy
} // namespace ppapi
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