зеркало из https://github.com/mozilla/gecko-dev.git
744 строки
19 KiB
C++
744 строки
19 KiB
C++
/* 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 "ActorsChild.h"
|
|
|
|
#include "BackgroundChildImpl.h"
|
|
#include "FileHandleBase.h"
|
|
#include "FileRequestBase.h"
|
|
#include "js/Date.h"
|
|
#include "mozilla/dom/EncodingUtils.h"
|
|
#include "mozilla/dom/File.h"
|
|
#include "mozilla/dom/ipc/BlobChild.h"
|
|
#include "MutableFileBase.h"
|
|
#include "nsCOMPtr.h"
|
|
#include "nsContentUtils.h"
|
|
#include "nsString.h"
|
|
#include "xpcpublic.h"
|
|
#include "mozilla/dom/BindingUtils.h"
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
|
|
/*******************************************************************************
|
|
* Helpers
|
|
******************************************************************************/
|
|
|
|
namespace {
|
|
|
|
class MOZ_STACK_CLASS AutoSetCurrentFileHandle final
|
|
{
|
|
typedef mozilla::ipc::BackgroundChildImpl BackgroundChildImpl;
|
|
|
|
FileHandleBase* const mFileHandle;
|
|
FileHandleBase* mPreviousFileHandle;
|
|
FileHandleBase** mThreadLocalSlot;
|
|
|
|
public:
|
|
explicit AutoSetCurrentFileHandle(FileHandleBase* aFileHandle)
|
|
: mFileHandle(aFileHandle)
|
|
, mPreviousFileHandle(nullptr)
|
|
, mThreadLocalSlot(nullptr)
|
|
{
|
|
if (aFileHandle) {
|
|
BackgroundChildImpl::ThreadLocal* threadLocal =
|
|
BackgroundChildImpl::GetThreadLocalForCurrentThread();
|
|
MOZ_ASSERT(threadLocal);
|
|
|
|
// Hang onto this location for resetting later.
|
|
mThreadLocalSlot = &threadLocal->mCurrentFileHandle;
|
|
|
|
// Save the current value.
|
|
mPreviousFileHandle = *mThreadLocalSlot;
|
|
|
|
// Set the new value.
|
|
*mThreadLocalSlot = aFileHandle;
|
|
}
|
|
}
|
|
|
|
~AutoSetCurrentFileHandle()
|
|
{
|
|
MOZ_ASSERT_IF(mThreadLocalSlot, mFileHandle);
|
|
MOZ_ASSERT_IF(mThreadLocalSlot, *mThreadLocalSlot == mFileHandle);
|
|
|
|
if (mThreadLocalSlot) {
|
|
// Reset old value.
|
|
*mThreadLocalSlot = mPreviousFileHandle;
|
|
}
|
|
}
|
|
|
|
FileHandleBase*
|
|
FileHandle() const
|
|
{
|
|
return mFileHandle;
|
|
}
|
|
};
|
|
|
|
class MOZ_STACK_CLASS ResultHelper final
|
|
: public FileRequestBase::ResultCallback
|
|
{
|
|
FileRequestBase* mFileRequest;
|
|
AutoSetCurrentFileHandle mAutoFileHandle;
|
|
|
|
union
|
|
{
|
|
File* mFile;
|
|
const nsCString* mString;
|
|
const FileRequestMetadata* mMetadata;
|
|
const JS::Handle<JS::Value>* mJSValHandle;
|
|
} mResult;
|
|
|
|
enum
|
|
{
|
|
ResultTypeFile,
|
|
ResultTypeString,
|
|
ResultTypeMetadata,
|
|
ResultTypeJSValHandle,
|
|
} mResultType;
|
|
|
|
public:
|
|
ResultHelper(FileRequestBase* aFileRequest,
|
|
FileHandleBase* aFileHandle,
|
|
File* aResult)
|
|
: mFileRequest(aFileRequest)
|
|
, mAutoFileHandle(aFileHandle)
|
|
, mResultType(ResultTypeFile)
|
|
{
|
|
MOZ_ASSERT(aFileRequest);
|
|
MOZ_ASSERT(aFileHandle);
|
|
MOZ_ASSERT(aResult);
|
|
|
|
mResult.mFile = aResult;
|
|
}
|
|
|
|
ResultHelper(FileRequestBase* aFileRequest,
|
|
FileHandleBase* aFileHandle,
|
|
const nsCString* aResult)
|
|
: mFileRequest(aFileRequest)
|
|
, mAutoFileHandle(aFileHandle)
|
|
, mResultType(ResultTypeString)
|
|
{
|
|
MOZ_ASSERT(aFileRequest);
|
|
MOZ_ASSERT(aFileHandle);
|
|
MOZ_ASSERT(aResult);
|
|
|
|
mResult.mString = aResult;
|
|
}
|
|
|
|
ResultHelper(FileRequestBase* aFileRequest,
|
|
FileHandleBase* aFileHandle,
|
|
const FileRequestMetadata* aResult)
|
|
: mFileRequest(aFileRequest)
|
|
, mAutoFileHandle(aFileHandle)
|
|
, mResultType(ResultTypeMetadata)
|
|
{
|
|
MOZ_ASSERT(aFileRequest);
|
|
MOZ_ASSERT(aFileHandle);
|
|
MOZ_ASSERT(aResult);
|
|
|
|
mResult.mMetadata = aResult;
|
|
}
|
|
|
|
|
|
ResultHelper(FileRequestBase* aFileRequest,
|
|
FileHandleBase* aFileHandle,
|
|
const JS::Handle<JS::Value>* aResult)
|
|
: mFileRequest(aFileRequest)
|
|
, mAutoFileHandle(aFileHandle)
|
|
, mResultType(ResultTypeJSValHandle)
|
|
{
|
|
MOZ_ASSERT(aFileRequest);
|
|
MOZ_ASSERT(aFileHandle);
|
|
MOZ_ASSERT(aResult);
|
|
|
|
mResult.mJSValHandle = aResult;
|
|
}
|
|
|
|
FileRequestBase*
|
|
FileRequest() const
|
|
{
|
|
return mFileRequest;
|
|
}
|
|
|
|
FileHandleBase*
|
|
FileHandle() const
|
|
{
|
|
return mAutoFileHandle.FileHandle();
|
|
}
|
|
|
|
virtual nsresult
|
|
GetResult(JSContext* aCx, JS::MutableHandle<JS::Value> aResult) override
|
|
{
|
|
MOZ_ASSERT(aCx);
|
|
MOZ_ASSERT(mFileRequest);
|
|
|
|
switch (mResultType) {
|
|
case ResultTypeFile:
|
|
return GetResult(aCx, mResult.mFile, aResult);
|
|
|
|
case ResultTypeString:
|
|
return GetResult(aCx, mResult.mString, aResult);
|
|
|
|
case ResultTypeMetadata:
|
|
return GetResult(aCx, mResult.mMetadata, aResult);
|
|
|
|
case ResultTypeJSValHandle:
|
|
aResult.set(*mResult.mJSValHandle);
|
|
return NS_OK;
|
|
|
|
default:
|
|
MOZ_CRASH("Unknown result type!");
|
|
}
|
|
|
|
MOZ_CRASH("Should never get here!");
|
|
}
|
|
|
|
private:
|
|
nsresult
|
|
GetResult(JSContext* aCx,
|
|
File* aFile,
|
|
JS::MutableHandle<JS::Value> aResult)
|
|
{
|
|
bool ok = GetOrCreateDOMReflector(aCx, aFile, aResult);
|
|
if (NS_WARN_IF(!ok)) {
|
|
return NS_ERROR_DOM_FILEHANDLE_UNKNOWN_ERR;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
GetResult(JSContext* aCx,
|
|
const nsCString* aString,
|
|
JS::MutableHandle<JS::Value> aResult)
|
|
{
|
|
const nsCString& data = *aString;
|
|
|
|
nsresult rv;
|
|
|
|
if (!mFileRequest->HasEncoding()) {
|
|
JS::Rooted<JSObject*> arrayBuffer(aCx);
|
|
rv = nsContentUtils::CreateArrayBuffer(aCx, data, arrayBuffer.address());
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return NS_ERROR_DOM_FILEHANDLE_UNKNOWN_ERR;
|
|
}
|
|
|
|
aResult.setObject(*arrayBuffer);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsAutoCString encoding;
|
|
// The BOM sniffing is baked into the "decode" part of the Encoding
|
|
// Standard, which the File API references.
|
|
if (!nsContentUtils::CheckForBOM(
|
|
reinterpret_cast<const unsigned char *>(data.get()),
|
|
data.Length(),
|
|
encoding)) {
|
|
// BOM sniffing failed. Try the API argument.
|
|
if (!EncodingUtils::FindEncodingForLabel(mFileRequest->GetEncoding(),
|
|
encoding)) {
|
|
// API argument failed. Since we are dealing with a file system file,
|
|
// we don't have a meaningful type attribute for the blob available,
|
|
// so proceeding to the next step, which is defaulting to UTF-8.
|
|
encoding.AssignLiteral("UTF-8");
|
|
}
|
|
}
|
|
|
|
nsString tmpString;
|
|
rv = nsContentUtils::ConvertStringFromEncoding(encoding, data, tmpString);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return NS_ERROR_DOM_FILEHANDLE_UNKNOWN_ERR;
|
|
}
|
|
|
|
if (NS_WARN_IF(!xpc::StringToJsval(aCx, tmpString, aResult))) {
|
|
return NS_ERROR_DOM_FILEHANDLE_UNKNOWN_ERR;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
GetResult(JSContext* aCx,
|
|
const FileRequestMetadata* aMetadata,
|
|
JS::MutableHandle<JS::Value> aResult)
|
|
{
|
|
JS::Rooted<JSObject*> obj(aCx, JS_NewPlainObject(aCx));
|
|
if (NS_WARN_IF(!obj)) {
|
|
return NS_ERROR_DOM_FILEHANDLE_UNKNOWN_ERR;
|
|
}
|
|
|
|
const FileRequestSize& size = aMetadata->size();
|
|
if (size.type() != FileRequestSize::Tvoid_t) {
|
|
MOZ_ASSERT(size.type() == FileRequestSize::Tuint64_t);
|
|
|
|
JS::Rooted<JS::Value> number(aCx, JS_NumberValue(size.get_uint64_t()));
|
|
|
|
if (NS_WARN_IF(!JS_DefineProperty(aCx, obj, "size", number, 0))) {
|
|
return NS_ERROR_DOM_FILEHANDLE_UNKNOWN_ERR;
|
|
}
|
|
}
|
|
|
|
const FileRequestLastModified& lastModified = aMetadata->lastModified();
|
|
if (lastModified.type() != FileRequestLastModified::Tvoid_t) {
|
|
MOZ_ASSERT(lastModified.type() == FileRequestLastModified::Tint64_t);
|
|
|
|
JS::Rooted<JSObject*> date(aCx,
|
|
JS::NewDateObject(aCx, JS::TimeClip(lastModified.get_int64_t())));
|
|
if (NS_WARN_IF(!date)) {
|
|
return NS_ERROR_DOM_FILEHANDLE_UNKNOWN_ERR;
|
|
}
|
|
|
|
if (NS_WARN_IF(!JS_DefineProperty(aCx, obj, "lastModified", date, 0))) {
|
|
return NS_ERROR_DOM_FILEHANDLE_UNKNOWN_ERR;
|
|
}
|
|
}
|
|
|
|
aResult.setObject(*obj);
|
|
return NS_OK;
|
|
}
|
|
};
|
|
|
|
already_AddRefed<File>
|
|
ConvertActorToFile(FileHandleBase* aFileHandle,
|
|
const FileRequestGetFileResponse& aResponse)
|
|
{
|
|
auto* actor = static_cast<BlobChild*>(aResponse.fileChild());
|
|
|
|
MutableFileBase* mutableFile = aFileHandle->MutableFile();
|
|
MOZ_ASSERT(mutableFile);
|
|
|
|
const FileRequestMetadata& metadata = aResponse.metadata();
|
|
|
|
const FileRequestSize& size = metadata.size();
|
|
MOZ_ASSERT(size.type() == FileRequestSize::Tuint64_t);
|
|
|
|
const FileRequestLastModified& lastModified = metadata.lastModified();
|
|
MOZ_ASSERT(lastModified.type() == FileRequestLastModified::Tint64_t);
|
|
|
|
actor->SetMysteryBlobInfo(mutableFile->Name(),
|
|
mutableFile->Type(),
|
|
size.get_uint64_t(),
|
|
lastModified.get_int64_t());
|
|
|
|
RefPtr<BlobImpl> blobImpl = actor->GetBlobImpl();
|
|
MOZ_ASSERT(blobImpl);
|
|
|
|
RefPtr<File> file = mutableFile->CreateFileFor(blobImpl, aFileHandle);
|
|
return file.forget();
|
|
}
|
|
|
|
void
|
|
HandleSuccess(ResultHelper* aResultHelper)
|
|
{
|
|
MOZ_ASSERT(aResultHelper);
|
|
|
|
RefPtr<FileRequestBase> fileRequest = aResultHelper->FileRequest();
|
|
MOZ_ASSERT(fileRequest);
|
|
fileRequest->AssertIsOnOwningThread();
|
|
|
|
RefPtr<FileHandleBase> fileHandle = aResultHelper->FileHandle();
|
|
MOZ_ASSERT(fileHandle);
|
|
|
|
if (fileHandle->IsAborted()) {
|
|
fileRequest->SetError(NS_ERROR_DOM_FILEHANDLE_ABORT_ERR);
|
|
return;
|
|
}
|
|
|
|
MOZ_ASSERT(fileHandle->IsOpen());
|
|
|
|
fileRequest->SetResultCallback(aResultHelper);
|
|
|
|
MOZ_ASSERT(fileHandle->IsOpen() || fileHandle->IsAborted());
|
|
}
|
|
|
|
void
|
|
HandleError(FileRequestBase* aFileRequest,
|
|
nsresult aErrorCode,
|
|
FileHandleBase* aFileHandle)
|
|
{
|
|
MOZ_ASSERT(aFileRequest);
|
|
aFileRequest->AssertIsOnOwningThread();
|
|
MOZ_ASSERT(NS_FAILED(aErrorCode));
|
|
MOZ_ASSERT(NS_ERROR_GET_MODULE(aErrorCode) == NS_ERROR_MODULE_DOM_FILEHANDLE);
|
|
MOZ_ASSERT(aFileHandle);
|
|
|
|
RefPtr<FileRequestBase> fileRequest = aFileRequest;
|
|
RefPtr<FileHandleBase> fileHandle = aFileHandle;
|
|
|
|
AutoSetCurrentFileHandle ascfh(aFileHandle);
|
|
|
|
fileRequest->SetError(aErrorCode);
|
|
|
|
MOZ_ASSERT(fileHandle->IsOpen() || fileHandle->IsAborted());
|
|
}
|
|
|
|
} // anonymous namespace
|
|
|
|
/*******************************************************************************
|
|
* BackgroundMutableFileChildBase
|
|
******************************************************************************/
|
|
|
|
BackgroundMutableFileChildBase::BackgroundMutableFileChildBase(
|
|
DEBUGONLY(PRThread* aOwningThread))
|
|
: ThreadObject(DEBUGONLY(aOwningThread))
|
|
, mMutableFile(nullptr)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
|
|
MOZ_COUNT_CTOR(BackgroundMutableFileChildBase);
|
|
}
|
|
|
|
BackgroundMutableFileChildBase::~BackgroundMutableFileChildBase()
|
|
{
|
|
AssertIsOnOwningThread();
|
|
|
|
MOZ_COUNT_DTOR(BackgroundMutableFileChildBase);
|
|
}
|
|
|
|
void
|
|
BackgroundMutableFileChildBase::EnsureDOMObject()
|
|
{
|
|
AssertIsOnOwningThread();
|
|
|
|
if (mTemporaryStrongMutableFile) {
|
|
return;
|
|
}
|
|
|
|
mTemporaryStrongMutableFile = CreateMutableFile();
|
|
|
|
MOZ_ASSERT(mTemporaryStrongMutableFile);
|
|
mTemporaryStrongMutableFile->AssertIsOnOwningThread();
|
|
|
|
mMutableFile = mTemporaryStrongMutableFile;
|
|
}
|
|
|
|
void
|
|
BackgroundMutableFileChildBase::ReleaseDOMObject()
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(mTemporaryStrongMutableFile);
|
|
mTemporaryStrongMutableFile->AssertIsOnOwningThread();
|
|
MOZ_ASSERT(mMutableFile == mTemporaryStrongMutableFile);
|
|
|
|
mTemporaryStrongMutableFile = nullptr;
|
|
}
|
|
|
|
void
|
|
BackgroundMutableFileChildBase::SendDeleteMeInternal()
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(!mTemporaryStrongMutableFile);
|
|
|
|
if (mMutableFile) {
|
|
mMutableFile->ClearBackgroundActor();
|
|
mMutableFile = nullptr;
|
|
|
|
MOZ_ALWAYS_TRUE(PBackgroundMutableFileChild::SendDeleteMe());
|
|
}
|
|
}
|
|
|
|
void
|
|
BackgroundMutableFileChildBase::ActorDestroy(ActorDestroyReason aWhy)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
|
|
if (mMutableFile) {
|
|
mMutableFile->ClearBackgroundActor();
|
|
DEBUGONLY(mMutableFile = nullptr;)
|
|
}
|
|
}
|
|
|
|
PBackgroundFileHandleChild*
|
|
BackgroundMutableFileChildBase::AllocPBackgroundFileHandleChild(
|
|
const FileMode& aMode)
|
|
{
|
|
MOZ_CRASH("PBackgroundFileHandleChild actors should be manually "
|
|
"constructed!");
|
|
}
|
|
|
|
bool
|
|
BackgroundMutableFileChildBase::DeallocPBackgroundFileHandleChild(
|
|
PBackgroundFileHandleChild* aActor)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(aActor);
|
|
|
|
delete static_cast<BackgroundFileHandleChild*>(aActor);
|
|
return true;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* BackgroundFileHandleChild
|
|
******************************************************************************/
|
|
|
|
BackgroundFileHandleChild::BackgroundFileHandleChild(
|
|
DEBUGONLY(PRThread* aOwningThread,)
|
|
FileHandleBase* aFileHandle)
|
|
: ThreadObject(DEBUGONLY(aOwningThread))
|
|
, mTemporaryStrongFileHandle(aFileHandle)
|
|
, mFileHandle(aFileHandle)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(aFileHandle);
|
|
aFileHandle->AssertIsOnOwningThread();
|
|
|
|
MOZ_COUNT_CTOR(BackgroundFileHandleChild);
|
|
}
|
|
|
|
BackgroundFileHandleChild::~BackgroundFileHandleChild()
|
|
{
|
|
AssertIsOnOwningThread();
|
|
|
|
MOZ_COUNT_DTOR(BackgroundFileHandleChild);
|
|
}
|
|
|
|
void
|
|
BackgroundFileHandleChild::SendDeleteMeInternal()
|
|
{
|
|
AssertIsOnOwningThread();
|
|
|
|
if (mFileHandle) {
|
|
NoteActorDestroyed();
|
|
|
|
MOZ_ALWAYS_TRUE(PBackgroundFileHandleChild::SendDeleteMe());
|
|
}
|
|
}
|
|
|
|
void
|
|
BackgroundFileHandleChild::NoteActorDestroyed()
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT_IF(mTemporaryStrongFileHandle, mFileHandle);
|
|
|
|
if (mFileHandle) {
|
|
mFileHandle->ClearBackgroundActor();
|
|
|
|
// Normally this would be DEBUG-only but NoteActorDestroyed is also called
|
|
// from SendDeleteMeInternal. In that case we're going to receive an actual
|
|
// ActorDestroy call later and we don't want to touch a dead object.
|
|
mTemporaryStrongFileHandle = nullptr;
|
|
mFileHandle = nullptr;
|
|
}
|
|
}
|
|
|
|
void
|
|
BackgroundFileHandleChild::NoteComplete()
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT_IF(mFileHandle, mTemporaryStrongFileHandle);
|
|
|
|
mTemporaryStrongFileHandle = nullptr;
|
|
}
|
|
|
|
void
|
|
BackgroundFileHandleChild::ActorDestroy(ActorDestroyReason aWhy)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
|
|
NoteActorDestroyed();
|
|
}
|
|
|
|
bool
|
|
BackgroundFileHandleChild::RecvComplete(const bool& aAborted)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(mFileHandle);
|
|
|
|
mFileHandle->HandleCompleteOrAbort(aAborted);
|
|
|
|
NoteComplete();
|
|
return true;
|
|
}
|
|
|
|
PBackgroundFileRequestChild*
|
|
BackgroundFileHandleChild::AllocPBackgroundFileRequestChild(
|
|
const FileRequestParams& aParams)
|
|
{
|
|
MOZ_CRASH("PBackgroundFileRequestChild actors should be manually "
|
|
"constructed!");
|
|
}
|
|
|
|
bool
|
|
BackgroundFileHandleChild::DeallocPBackgroundFileRequestChild(
|
|
PBackgroundFileRequestChild* aActor)
|
|
{
|
|
MOZ_ASSERT(aActor);
|
|
|
|
delete static_cast<BackgroundFileRequestChild*>(aActor);
|
|
return true;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* BackgroundFileRequestChild
|
|
******************************************************************************/
|
|
|
|
BackgroundFileRequestChild::BackgroundFileRequestChild(
|
|
DEBUGONLY(PRThread* aOwningThread,)
|
|
FileRequestBase* aFileRequest)
|
|
: ThreadObject(DEBUGONLY(aOwningThread))
|
|
, mFileRequest(aFileRequest)
|
|
, mFileHandle(aFileRequest->FileHandle())
|
|
, mActorDestroyed(false)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(aFileRequest);
|
|
aFileRequest->AssertIsOnOwningThread();
|
|
MOZ_ASSERT(mFileHandle);
|
|
mFileHandle->AssertIsOnOwningThread();
|
|
|
|
MOZ_COUNT_CTOR(BackgroundFileRequestChild);
|
|
}
|
|
|
|
BackgroundFileRequestChild::~BackgroundFileRequestChild()
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(!mFileHandle);
|
|
|
|
MOZ_COUNT_DTOR(BackgroundFileRequestChild);
|
|
}
|
|
|
|
void
|
|
BackgroundFileRequestChild::HandleResponse(nsresult aResponse)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(NS_FAILED(aResponse));
|
|
MOZ_ASSERT(NS_ERROR_GET_MODULE(aResponse) == NS_ERROR_MODULE_DOM_FILEHANDLE);
|
|
MOZ_ASSERT(mFileHandle);
|
|
|
|
HandleError(mFileRequest, aResponse, mFileHandle);
|
|
}
|
|
|
|
void
|
|
BackgroundFileRequestChild::HandleResponse(
|
|
const FileRequestGetFileResponse& aResponse)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
|
|
RefPtr<File> file = ConvertActorToFile(mFileHandle, aResponse);
|
|
|
|
ResultHelper helper(mFileRequest, mFileHandle, file);
|
|
|
|
HandleSuccess(&helper);
|
|
}
|
|
|
|
void
|
|
BackgroundFileRequestChild::HandleResponse(const nsCString& aResponse)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
|
|
ResultHelper helper(mFileRequest, mFileHandle, &aResponse);
|
|
|
|
HandleSuccess(&helper);
|
|
}
|
|
|
|
void
|
|
BackgroundFileRequestChild::HandleResponse(const FileRequestMetadata& aResponse)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
|
|
ResultHelper helper(mFileRequest, mFileHandle, &aResponse);
|
|
|
|
HandleSuccess(&helper);
|
|
}
|
|
|
|
void
|
|
BackgroundFileRequestChild::HandleResponse(JS::Handle<JS::Value> aResponse)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
|
|
ResultHelper helper(mFileRequest, mFileHandle, &aResponse);
|
|
|
|
HandleSuccess(&helper);
|
|
}
|
|
|
|
void
|
|
BackgroundFileRequestChild::ActorDestroy(ActorDestroyReason aWhy)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
|
|
MOZ_ASSERT(!mActorDestroyed);
|
|
|
|
mActorDestroyed = true;
|
|
|
|
if (mFileHandle) {
|
|
mFileHandle->AssertIsOnOwningThread();
|
|
|
|
mFileHandle->OnRequestFinished(/* aActorDestroyedNormally */
|
|
aWhy == Deletion);
|
|
|
|
DEBUGONLY(mFileHandle = nullptr;)
|
|
}
|
|
}
|
|
|
|
bool
|
|
BackgroundFileRequestChild::Recv__delete__(const FileRequestResponse& aResponse)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(mFileRequest);
|
|
MOZ_ASSERT(mFileHandle);
|
|
|
|
if (mFileHandle->IsAborted()) {
|
|
// Always handle an "error" with ABORT_ERR if the file handle was aborted,
|
|
// even if the request succeeded or failed with another error.
|
|
HandleResponse(NS_ERROR_DOM_FILEHANDLE_ABORT_ERR);
|
|
} else {
|
|
switch (aResponse.type()) {
|
|
case FileRequestResponse::Tnsresult:
|
|
HandleResponse(aResponse.get_nsresult());
|
|
break;
|
|
|
|
case FileRequestResponse::TFileRequestGetFileResponse:
|
|
HandleResponse(aResponse.get_FileRequestGetFileResponse());
|
|
break;
|
|
|
|
case FileRequestResponse::TFileRequestReadResponse:
|
|
HandleResponse(aResponse.get_FileRequestReadResponse().data());
|
|
break;
|
|
|
|
case FileRequestResponse::TFileRequestWriteResponse:
|
|
HandleResponse(JS::UndefinedHandleValue);
|
|
break;
|
|
|
|
case FileRequestResponse::TFileRequestTruncateResponse:
|
|
HandleResponse(JS::UndefinedHandleValue);
|
|
break;
|
|
|
|
case FileRequestResponse::TFileRequestFlushResponse:
|
|
HandleResponse(JS::UndefinedHandleValue);
|
|
break;
|
|
|
|
case FileRequestResponse::TFileRequestGetMetadataResponse:
|
|
HandleResponse(aResponse.get_FileRequestGetMetadataResponse()
|
|
.metadata());
|
|
break;
|
|
|
|
default:
|
|
MOZ_CRASH("Unknown response type!");
|
|
}
|
|
}
|
|
|
|
mFileHandle->OnRequestFinished(/* aActorDestroyedNormally */ true);
|
|
|
|
// Null this out so that we don't try to call OnRequestFinished() again in
|
|
// ActorDestroy.
|
|
mFileHandle = nullptr;
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
BackgroundFileRequestChild::RecvProgress(const uint64_t& aProgress,
|
|
const uint64_t& aProgressMax)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(mFileRequest);
|
|
|
|
mFileRequest->OnProgress(aProgress, aProgressMax);
|
|
|
|
return true;
|
|
}
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|