зеркало из https://github.com/mozilla/gecko-dev.git
266 строки
7.0 KiB
C++
266 строки
7.0 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "GetFilesTask.h"
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#include "HTMLSplitOnSpacesTokenizer.h"
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#include "js/Value.h"
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#include "mozilla/dom/File.h"
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#include "mozilla/dom/FileSystemBase.h"
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#include "mozilla/dom/FileSystemUtils.h"
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#include "mozilla/dom/IPCBlobUtils.h"
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#include "mozilla/dom/PFileSystemParams.h"
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#include "mozilla/dom/Promise.h"
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#include "nsIFile.h"
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#include "nsString.h"
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namespace mozilla {
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namespace dom {
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/**
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* GetFilesTaskChild
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*/
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/* static */ already_AddRefed<GetFilesTaskChild>
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GetFilesTaskChild::Create(FileSystemBase* aFileSystem,
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Directory* aDirectory,
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nsIFile* aTargetPath,
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bool aRecursiveFlag,
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ErrorResult& aRv)
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{
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MOZ_ASSERT(aFileSystem);
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MOZ_ASSERT(aDirectory);
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aFileSystem->AssertIsOnOwningThread();
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nsCOMPtr<nsIGlobalObject> globalObject =
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do_QueryInterface(aFileSystem->GetParentObject());
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if (NS_WARN_IF(!globalObject)) {
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aRv.Throw(NS_ERROR_FAILURE);
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return nullptr;
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}
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RefPtr<GetFilesTaskChild> task =
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new GetFilesTaskChild(globalObject, aFileSystem, aDirectory, aTargetPath,
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aRecursiveFlag);
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// aTargetPath can be null. In this case SetError will be called.
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task->mPromise = Promise::Create(globalObject, aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return nullptr;
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}
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return task.forget();
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}
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GetFilesTaskChild::GetFilesTaskChild(nsIGlobalObject *aGlobalObject,
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FileSystemBase* aFileSystem,
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Directory* aDirectory,
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nsIFile* aTargetPath,
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bool aRecursiveFlag)
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: FileSystemTaskChildBase(aGlobalObject, aFileSystem)
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, mDirectory(aDirectory)
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, mTargetPath(aTargetPath)
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, mRecursiveFlag(aRecursiveFlag)
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{
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MOZ_ASSERT(aFileSystem);
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MOZ_ASSERT(aDirectory);
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aFileSystem->AssertIsOnOwningThread();
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}
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GetFilesTaskChild::~GetFilesTaskChild()
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{
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mFileSystem->AssertIsOnOwningThread();
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}
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already_AddRefed<Promise>
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GetFilesTaskChild::GetPromise()
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{
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mFileSystem->AssertIsOnOwningThread();
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return RefPtr<Promise>(mPromise).forget();
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}
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FileSystemParams
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GetFilesTaskChild::GetRequestParams(const nsString& aSerializedDOMPath,
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ErrorResult& aRv) const
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{
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mFileSystem->AssertIsOnOwningThread();
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nsAutoString path;
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aRv = mTargetPath->GetPath(path);
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if (NS_WARN_IF(aRv.Failed())) {
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return FileSystemGetFilesParams();
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}
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nsAutoString domPath;
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mDirectory->GetPath(domPath, aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return FileSystemGetFilesParams();
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}
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return FileSystemGetFilesParams(aSerializedDOMPath, path, domPath,
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mRecursiveFlag);
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}
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void
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GetFilesTaskChild::SetSuccessRequestResult(const FileSystemResponseValue& aValue,
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ErrorResult& aRv)
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{
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mFileSystem->AssertIsOnOwningThread();
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MOZ_ASSERT(aValue.type() ==
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FileSystemResponseValue::TFileSystemFilesResponse);
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FileSystemFilesResponse r = aValue;
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if (!mTargetData.SetLength(r.data().Length(), mozilla::fallible_t())) {
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aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
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return;
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}
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for (uint32_t i = 0; i < r.data().Length(); ++i) {
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const FileSystemFileResponse& data = r.data()[i];
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RefPtr<BlobImpl> blobImpl = IPCBlobUtils::Deserialize(data.blob());
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MOZ_ASSERT(blobImpl);
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mTargetData[i] = File::Create(mFileSystem->GetParentObject(), blobImpl);
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}
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}
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void
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GetFilesTaskChild::HandlerCallback()
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{
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mFileSystem->AssertIsOnOwningThread();
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if (mFileSystem->IsShutdown()) {
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mPromise = nullptr;
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return;
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}
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if (HasError()) {
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mPromise->MaybeReject(NS_ERROR_DOM_INVALID_STATE_ERR);
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mPromise = nullptr;
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return;
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}
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mPromise->MaybeResolve(mTargetData);
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mPromise = nullptr;
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}
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/**
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* GetFilesTaskParent
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*/
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/* static */ already_AddRefed<GetFilesTaskParent>
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GetFilesTaskParent::Create(FileSystemBase* aFileSystem,
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const FileSystemGetFilesParams& aParam,
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FileSystemRequestParent* aParent,
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ErrorResult& aRv)
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{
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MOZ_ASSERT(XRE_IsParentProcess(), "Only call from parent process!");
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AssertIsOnBackgroundThread();
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MOZ_ASSERT(aFileSystem);
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RefPtr<GetFilesTaskParent> task =
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new GetFilesTaskParent(aFileSystem, aParam, aParent);
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aRv = NS_NewLocalFile(aParam.realPath(), true,
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getter_AddRefs(task->mTargetPath));
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if (NS_WARN_IF(aRv.Failed())) {
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return nullptr;
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}
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return task.forget();
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}
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GetFilesTaskParent::GetFilesTaskParent(FileSystemBase* aFileSystem,
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const FileSystemGetFilesParams& aParam,
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FileSystemRequestParent* aParent)
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: FileSystemTaskParentBase(aFileSystem, aParam, aParent)
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, GetFilesHelperBase(aParam.recursiveFlag())
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, mDirectoryDOMPath(aParam.domPath())
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{
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MOZ_ASSERT(XRE_IsParentProcess(), "Only call from parent process!");
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AssertIsOnBackgroundThread();
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MOZ_ASSERT(aFileSystem);
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}
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FileSystemResponseValue
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GetFilesTaskParent::GetSuccessRequestResult(ErrorResult& aRv) const
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{
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AssertIsOnBackgroundThread();
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FallibleTArray<FileSystemFileResponse> inputs;
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if (!inputs.SetLength(mTargetBlobImplArray.Length(), mozilla::fallible_t())) {
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FileSystemFilesResponse response;
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aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
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return response;
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}
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for (unsigned i = 0; i < mTargetBlobImplArray.Length(); i++) {
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IPCBlob ipcBlob;
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aRv = IPCBlobUtils::Serialize(mTargetBlobImplArray[i],
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mRequestParent->Manager(), ipcBlob);
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if (NS_WARN_IF(aRv.Failed())) {
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FileSystemFilesResponse response;
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return response;
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}
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inputs[i] = FileSystemFileResponse(ipcBlob);
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}
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FileSystemFilesResponse response;
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response.data().SwapElements(inputs);
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return response;
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}
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nsresult
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GetFilesTaskParent::IOWork()
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{
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MOZ_ASSERT(XRE_IsParentProcess(),
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"Only call from parent process!");
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MOZ_ASSERT(!NS_IsMainThread(), "Only call on I/O thread!");
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if (mFileSystem->IsShutdown()) {
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return NS_ERROR_FAILURE;
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}
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bool exists;
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nsresult rv = mTargetPath->Exists(&exists);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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if (!exists) {
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return NS_OK;
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}
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bool isDir;
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rv = mTargetPath->IsDirectory(&isDir);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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if (!isDir) {
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return NS_ERROR_DOM_FILESYSTEM_TYPE_MISMATCH_ERR;
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}
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// Get isDirectory.
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rv = ExploreDirectory(mDirectoryDOMPath, mTargetPath);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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return NS_OK;
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}
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nsresult
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GetFilesTaskParent::GetTargetPath(nsAString& aPath) const
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{
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return mTargetPath->GetPath(aPath);
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}
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} // namespace dom
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} // namespace mozilla
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