gecko-dev/dom/filesystem/CreateDirectoryTask.cpp

143 строки
3.8 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "CreateDirectoryTask.h"
#include "DOMError.h"
#include "mozilla/dom/Directory.h"
#include "mozilla/dom/FileSystemBase.h"
#include "mozilla/dom/FileSystemUtils.h"
#include "mozilla/dom/Promise.h"
#include "nsIFile.h"
#include "nsStringGlue.h"
namespace mozilla {
namespace dom {
CreateDirectoryTask::CreateDirectoryTask(FileSystemBase* aFileSystem,
const nsAString& aPath,
ErrorResult& aRv)
: FileSystemTaskBase(aFileSystem)
, mTargetRealPath(aPath)
{
MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!");
MOZ_ASSERT(aFileSystem);
nsCOMPtr<nsIGlobalObject> globalObject =
do_QueryInterface(aFileSystem->GetWindow());
if (!globalObject) {
return;
}
mPromise = Promise::Create(globalObject, aRv);
}
CreateDirectoryTask::CreateDirectoryTask(
FileSystemBase* aFileSystem,
const FileSystemCreateDirectoryParams& aParam,
FileSystemRequestParent* aParent)
: FileSystemTaskBase(aFileSystem, aParam, aParent)
{
MOZ_ASSERT(FileSystemUtils::IsParentProcess(),
"Only call from parent process!");
MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!");
MOZ_ASSERT(aFileSystem);
mTargetRealPath = aParam.realPath();
}
CreateDirectoryTask::~CreateDirectoryTask()
{
MOZ_ASSERT(!mPromise || NS_IsMainThread(),
"mPromise should be released on main thread!");
}
already_AddRefed<Promise>
CreateDirectoryTask::GetPromise()
{
MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!");
return nsRefPtr<Promise>(mPromise).forget();
}
FileSystemParams
CreateDirectoryTask::GetRequestParams(const nsString& aFileSystem) const
{
MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!");
return FileSystemCreateDirectoryParams(aFileSystem, mTargetRealPath);
}
FileSystemResponseValue
CreateDirectoryTask::GetSuccessRequestResult() const
{
MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!");
return FileSystemDirectoryResponse(mTargetRealPath);
}
void
CreateDirectoryTask::SetSuccessRequestResult(const FileSystemResponseValue& aValue)
{
MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!");
FileSystemDirectoryResponse r = aValue;
mTargetRealPath = r.realPath();
}
nsresult
CreateDirectoryTask::Work()
{
MOZ_ASSERT(FileSystemUtils::IsParentProcess(),
"Only call from parent process!");
MOZ_ASSERT(!NS_IsMainThread(), "Only call on worker thread!");
if (mFileSystem->IsShutdown()) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIFile> file = mFileSystem->GetLocalFile(mTargetRealPath);
if (!file) {
return NS_ERROR_DOM_FILESYSTEM_INVALID_PATH_ERR;
}
bool fileExists;
nsresult rv = file->Exists(&fileExists);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if (fileExists) {
return NS_ERROR_DOM_FILESYSTEM_PATH_EXISTS_ERR;
}
rv = file->Create(nsIFile::DIRECTORY_TYPE, 0770);
return rv;
}
void
CreateDirectoryTask::HandlerCallback()
{
MOZ_ASSERT(NS_IsMainThread(), "Only call on main thread!");
if (mFileSystem->IsShutdown()) {
mPromise = nullptr;
return;
}
if (HasError()) {
nsRefPtr<DOMError> domError = new DOMError(mFileSystem->GetWindow(),
mErrorValue);
mPromise->MaybeRejectBrokenly(domError);
mPromise = nullptr;
return;
}
nsRefPtr<Directory> dir = new Directory(mFileSystem, mTargetRealPath);
mPromise->MaybeResolve(dir);
mPromise = nullptr;
}
void
CreateDirectoryTask::GetPermissionAccessType(nsCString& aAccess) const
{
aAccess.AssignLiteral("create");
}
} // namespace dom
} // namespace mozilla