diff options
Diffstat (limited to 'dom/filesystem/GetFilesTask.cpp')
| -rw-r--r-- | dom/filesystem/GetFilesTask.cpp | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/dom/filesystem/GetFilesTask.cpp b/dom/filesystem/GetFilesTask.cpp new file mode 100644 index 000000000..6682fb7d3 --- /dev/null +++ b/dom/filesystem/GetFilesTask.cpp @@ -0,0 +1,263 @@ +/* -*- 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 "GetFilesTask.h" + +#include "HTMLSplitOnSpacesTokenizer.h" +#include "js/Value.h" +#include "mozilla/dom/File.h" +#include "mozilla/dom/FileSystemBase.h" +#include "mozilla/dom/FileSystemUtils.h" +#include "mozilla/dom/PFileSystemParams.h" +#include "mozilla/dom/Promise.h" +#include "mozilla/dom/ipc/BlobChild.h" +#include "mozilla/dom/ipc/BlobParent.h" +#include "nsIFile.h" +#include "nsStringGlue.h" + +namespace mozilla { +namespace dom { + +/** + * GetFilesTaskChild + */ + +/* static */ already_AddRefed<GetFilesTaskChild> +GetFilesTaskChild::Create(FileSystemBase* aFileSystem, + Directory* aDirectory, + nsIFile* aTargetPath, + bool aRecursiveFlag, + ErrorResult& aRv) +{ + MOZ_ASSERT(aFileSystem); + MOZ_ASSERT(aDirectory); + aFileSystem->AssertIsOnOwningThread(); + + nsCOMPtr<nsIGlobalObject> globalObject = + do_QueryInterface(aFileSystem->GetParentObject()); + if (NS_WARN_IF(!globalObject)) { + aRv.Throw(NS_ERROR_FAILURE); + return nullptr; + } + + RefPtr<GetFilesTaskChild> task = + new GetFilesTaskChild(aFileSystem, aDirectory, aTargetPath, + aRecursiveFlag); + + // aTargetPath can be null. In this case SetError will be called. + + task->mPromise = Promise::Create(globalObject, aRv); + if (NS_WARN_IF(aRv.Failed())) { + return nullptr; + } + + return task.forget(); +} + +GetFilesTaskChild::GetFilesTaskChild(FileSystemBase* aFileSystem, + Directory* aDirectory, + nsIFile* aTargetPath, + bool aRecursiveFlag) + : FileSystemTaskChildBase(aFileSystem) + , mDirectory(aDirectory) + , mTargetPath(aTargetPath) + , mRecursiveFlag(aRecursiveFlag) +{ + MOZ_ASSERT(aFileSystem); + MOZ_ASSERT(aDirectory); + aFileSystem->AssertIsOnOwningThread(); +} + +GetFilesTaskChild::~GetFilesTaskChild() +{ + mFileSystem->AssertIsOnOwningThread(); +} + +already_AddRefed<Promise> +GetFilesTaskChild::GetPromise() +{ + mFileSystem->AssertIsOnOwningThread(); + return RefPtr<Promise>(mPromise).forget(); +} + +FileSystemParams +GetFilesTaskChild::GetRequestParams(const nsString& aSerializedDOMPath, + ErrorResult& aRv) const +{ + mFileSystem->AssertIsOnOwningThread(); + + nsAutoString path; + aRv = mTargetPath->GetPath(path); + if (NS_WARN_IF(aRv.Failed())) { + return FileSystemGetFilesParams(); + } + + nsAutoString domPath; + mDirectory->GetPath(domPath, aRv); + if (NS_WARN_IF(aRv.Failed())) { + return FileSystemGetFilesParams(); + } + + return FileSystemGetFilesParams(aSerializedDOMPath, path, domPath, + mRecursiveFlag); +} + +void +GetFilesTaskChild::SetSuccessRequestResult(const FileSystemResponseValue& aValue, + ErrorResult& aRv) +{ + mFileSystem->AssertIsOnOwningThread(); + MOZ_ASSERT(aValue.type() == + FileSystemResponseValue::TFileSystemFilesResponse); + + FileSystemFilesResponse r = aValue; + + if (!mTargetData.SetLength(r.data().Length(), mozilla::fallible_t())) { + aRv.Throw(NS_ERROR_OUT_OF_MEMORY); + return; + } + + for (uint32_t i = 0; i < r.data().Length(); ++i) { + const FileSystemFileResponse& data = r.data()[i]; + RefPtr<BlobImpl> blobImpl = + static_cast<BlobChild*>(data.blobChild())->GetBlobImpl(); + MOZ_ASSERT(blobImpl); + + mTargetData[i] = File::Create(mFileSystem->GetParentObject(), blobImpl); + } +} + +void +GetFilesTaskChild::HandlerCallback() +{ + mFileSystem->AssertIsOnOwningThread(); + if (mFileSystem->IsShutdown()) { + mPromise = nullptr; + return; + } + + if (HasError()) { + mPromise->MaybeReject(NS_ERROR_DOM_INVALID_STATE_ERR); + mPromise = nullptr; + return; + } + + mPromise->MaybeResolve(mTargetData); + mPromise = nullptr; +} + +/** + * GetFilesTaskParent + */ + +/* static */ already_AddRefed<GetFilesTaskParent> +GetFilesTaskParent::Create(FileSystemBase* aFileSystem, + const FileSystemGetFilesParams& aParam, + FileSystemRequestParent* aParent, + ErrorResult& aRv) +{ + MOZ_ASSERT(XRE_IsParentProcess(), "Only call from parent process!"); + AssertIsOnBackgroundThread(); + MOZ_ASSERT(aFileSystem); + + RefPtr<GetFilesTaskParent> task = + new GetFilesTaskParent(aFileSystem, aParam, aParent); + + aRv = NS_NewLocalFile(aParam.realPath(), true, + getter_AddRefs(task->mTargetPath)); + if (NS_WARN_IF(aRv.Failed())) { + return nullptr; + } + + return task.forget(); +} + +GetFilesTaskParent::GetFilesTaskParent(FileSystemBase* aFileSystem, + const FileSystemGetFilesParams& aParam, + FileSystemRequestParent* aParent) + : FileSystemTaskParentBase(aFileSystem, aParam, aParent) + , GetFilesHelperBase(aParam.recursiveFlag()) + , mDirectoryDOMPath(aParam.domPath()) +{ + MOZ_ASSERT(XRE_IsParentProcess(), "Only call from parent process!"); + AssertIsOnBackgroundThread(); + MOZ_ASSERT(aFileSystem); +} + +FileSystemResponseValue +GetFilesTaskParent::GetSuccessRequestResult(ErrorResult& aRv) const +{ + AssertIsOnBackgroundThread(); + + InfallibleTArray<PBlobParent*> blobs; + + FallibleTArray<FileSystemFileResponse> inputs; + if (!inputs.SetLength(mTargetBlobImplArray.Length(), mozilla::fallible_t())) { + aRv.Throw(NS_ERROR_OUT_OF_MEMORY); + FileSystemFilesResponse response; + return response; + } + + for (unsigned i = 0; i < mTargetBlobImplArray.Length(); i++) { + BlobParent* blobParent = + BlobParent::GetOrCreate(mRequestParent->Manager(), + mTargetBlobImplArray[i]); + inputs[i] = FileSystemFileResponse(blobParent, nullptr); + } + + FileSystemFilesResponse response; + response.data().SwapElements(inputs); + return response; +} + +nsresult +GetFilesTaskParent::IOWork() +{ + MOZ_ASSERT(XRE_IsParentProcess(), + "Only call from parent process!"); + MOZ_ASSERT(!NS_IsMainThread(), "Only call on I/O thread!"); + + if (mFileSystem->IsShutdown()) { + return NS_ERROR_FAILURE; + } + + bool exists; + nsresult rv = mTargetPath->Exists(&exists); + if (NS_WARN_IF(NS_FAILED(rv))) { + return rv; + } + + if (!exists) { + return NS_OK; + } + + bool isDir; + rv = mTargetPath->IsDirectory(&isDir); + if (NS_WARN_IF(NS_FAILED(rv))) { + return rv; + } + + if (!isDir) { + return NS_ERROR_DOM_FILESYSTEM_TYPE_MISMATCH_ERR; + } + + // Get isDirectory. + rv = ExploreDirectory(mDirectoryDOMPath, mTargetPath); + if (NS_WARN_IF(NS_FAILED(rv))) { + return rv; + } + + return NS_OK; +} + +nsresult +GetFilesTaskParent::GetTargetPath(nsAString& aPath) const +{ + return mTargetPath->GetPath(aPath); +} + +} // namespace dom +} // namespace mozilla |