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// Copyright (c) 2010 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 "webkit/glue/plugins/pepper_file_system.h"
#include "base/logging.h"
#include "base/ref_counted.h"
#include "base/weak_ptr.h"
#include "third_party/ppapi/c/dev/ppb_file_system_dev.h"
#include "third_party/ppapi/c/pp_completion_callback.h"
#include "third_party/ppapi/c/pp_time.h"
#include "webkit/fileapi/file_system_callback_dispatcher.h"
#include "webkit/glue/plugins/pepper_resource.h"
#include "webkit/glue/plugins/pepper_error_util.h"
#include "webkit/glue/plugins/pepper_file_ref.h"
#include "webkit/glue/plugins/pepper_plugin_delegate.h"
#include "webkit/glue/plugins/pepper_plugin_instance.h"
#include "webkit/glue/plugins/pepper_plugin_module.h"
#include "webkit/glue/plugins/pepper_resource.h"
namespace pepper {
namespace {
// Instances of this class are deleted when RunCallback() is called.
class StatusCallback : public fileapi::FileSystemCallbackDispatcher {
public:
StatusCallback(base::WeakPtr<pepper::PluginModule> module,
PP_CompletionCallback callback)
: module_(module),
callback_(callback) {
}
// FileSystemCallbackDispatcher implementation.
virtual void DidSucceed() {
RunCallback(base::PLATFORM_FILE_OK);
}
virtual void DidReadMetadata(const base::PlatformFileInfo&) {
NOTREACHED();
}
virtual void DidReadDirectory(
const std::vector<base::file_util_proxy::Entry>&, bool) {
NOTREACHED();
}
virtual void DidOpenFileSystem(const std::string&, const FilePath&) {
NOTREACHED();
}
virtual void DidFail(base::PlatformFileError error_code) {
RunCallback(error_code);
}
private:
void RunCallback(base::PlatformFileError error_code) {
if (!module_.get() || !callback_.func)
return;
PP_RunCompletionCallback(
&callback_, pepper::PlatformFileErrorToPepperError(error_code));
delete this;
}
base::WeakPtr<pepper::PluginModule> module_;
PP_CompletionCallback callback_;
};
// Instances of this class are deleted when RunCallback() is called.
class QueryInfoCallback : public fileapi::FileSystemCallbackDispatcher {
public:
QueryInfoCallback(base::WeakPtr<pepper::PluginModule> module,
PP_CompletionCallback callback,
PP_FileInfo_Dev* info,
PP_FileSystemType_Dev file_system_type)
: module_(module),
callback_(callback),
info_(info),
file_system_type_(file_system_type) {
DCHECK(info_);
}
// FileSystemCallbackDispatcher implementation.
virtual void DidSucceed() {
NOTREACHED();
}
virtual void DidReadMetadata(const base::PlatformFileInfo& file_info) {
RunCallback(base::PLATFORM_FILE_OK, file_info);
}
virtual void DidReadDirectory(
const std::vector<base::file_util_proxy::Entry>&, bool) {
NOTREACHED();
}
virtual void DidOpenFileSystem(const std::string&, const FilePath&) {
NOTREACHED();
}
virtual void DidFail(base::PlatformFileError error_code) {
RunCallback(error_code, base::PlatformFileInfo());
}
private:
void RunCallback(base::PlatformFileError error_code,
const base::PlatformFileInfo& file_info) {
if (!module_.get() || !callback_.func)
return;
if (error_code == base::PLATFORM_FILE_OK) {
info_->size = file_info.size;
info_->creation_time = file_info.creation_time.ToDoubleT();
info_->last_access_time = file_info.last_accessed.ToDoubleT();
info_->last_modified_time = file_info.last_modified.ToDoubleT();
info_->system_type = file_system_type_;
if (file_info.is_directory)
info_->type = PP_FILETYPE_DIRECTORY;
else
info_->type = PP_FILETYPE_REGULAR;
}
PP_RunCompletionCallback(
&callback_, pepper::PlatformFileErrorToPepperError(error_code));
delete this;
}
base::WeakPtr<pepper::PluginModule> module_;
PP_CompletionCallback callback_;
PP_FileInfo_Dev* info_;
PP_FileSystemType_Dev file_system_type_;
};
int32_t MakeDirectory(PP_Resource directory_ref_id,
bool make_ancestors,
PP_CompletionCallback callback) {
scoped_refptr<FileRef> directory_ref(
Resource::GetAs<FileRef>(directory_ref_id));
if (!directory_ref)
return PP_ERROR_BADRESOURCE;
if (directory_ref->file_system_type() == PP_FILESYSTEMTYPE_EXTERNAL)
return PP_ERROR_FAILED;
PluginModule* module = directory_ref->module();
if (!module->GetSomeInstance()->delegate()->MakeDirectory(
directory_ref->system_path(), make_ancestors,
new StatusCallback(module->AsWeakPtr(), callback)))
return PP_ERROR_FAILED;
return PP_ERROR_WOULDBLOCK;
}
int32_t Query(PP_Resource file_ref_id,
PP_FileInfo_Dev* info,
PP_CompletionCallback callback) {
scoped_refptr<FileRef> file_ref(Resource::GetAs<FileRef>(file_ref_id));
if (!file_ref)
return PP_ERROR_BADRESOURCE;
PluginModule* module = file_ref->module();
if (!module->GetSomeInstance()->delegate()->Query(
file_ref->system_path(),
new QueryInfoCallback(module->AsWeakPtr(), callback,
info, file_ref->file_system_type())))
return PP_ERROR_FAILED;
return PP_ERROR_WOULDBLOCK;
}
int32_t Touch(PP_Resource file_ref_id,
PP_Time last_access_time,
PP_Time last_modified_time,
PP_CompletionCallback callback) {
scoped_refptr<FileRef> file_ref(Resource::GetAs<FileRef>(file_ref_id));
if (!file_ref)
return PP_ERROR_BADRESOURCE;
PluginModule* module = file_ref->module();
if (!module->GetSomeInstance()->delegate()->Touch(
file_ref->system_path(), base::Time::FromDoubleT(last_access_time),
base::Time::FromDoubleT(last_modified_time),
new StatusCallback(module->AsWeakPtr(), callback)))
return PP_ERROR_FAILED;
return PP_ERROR_WOULDBLOCK;
}
int32_t Delete(PP_Resource file_ref_id,
PP_CompletionCallback callback) {
scoped_refptr<FileRef> file_ref(Resource::GetAs<FileRef>(file_ref_id));
if (!file_ref)
return PP_ERROR_BADRESOURCE;
if (file_ref->file_system_type() == PP_FILESYSTEMTYPE_EXTERNAL)
return PP_ERROR_FAILED;
PluginModule* module = file_ref->module();
if (!module->GetSomeInstance()->delegate()->Delete(
file_ref->system_path(),
new StatusCallback(module->AsWeakPtr(), callback)))
return PP_ERROR_FAILED;
return PP_ERROR_WOULDBLOCK;
}
int32_t Rename(PP_Resource file_ref_id,
PP_Resource new_file_ref_id,
PP_CompletionCallback callback) {
scoped_refptr<FileRef> file_ref(Resource::GetAs<FileRef>(file_ref_id));
if (!file_ref)
return PP_ERROR_BADRESOURCE;
scoped_refptr<FileRef> new_file_ref(
Resource::GetAs<FileRef>(new_file_ref_id));
if (!new_file_ref)
return PP_ERROR_BADRESOURCE;
if ((file_ref->file_system_type() == PP_FILESYSTEMTYPE_EXTERNAL) ||
(file_ref->file_system_type() != new_file_ref->file_system_type()))
return PP_ERROR_FAILED;
PluginModule* module = file_ref->module();
if (!module->GetSomeInstance()->delegate()->Rename(
file_ref->system_path(), new_file_ref->system_path(),
new StatusCallback(module->AsWeakPtr(), callback)))
return PP_ERROR_FAILED;
return PP_ERROR_WOULDBLOCK;
}
const PPB_FileSystem_Dev ppb_filesystem = {
&MakeDirectory,
&Query,
&Touch,
&Delete,
&Rename
};
} // namespace
const PPB_FileSystem_Dev* FileSystem::GetInterface() {
return &ppb_filesystem;
}
} // namespace pepper
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