nsresult
FileReader::OnLoadEnd(nsresult aStatus)
{
// Cancel the progress event timer
ClearProgressEventTimer();
// FileReader must be in DONE stage after an operation
mReadyState = DONE;
nsAutoString successEvent, termEvent;
nsresult rv = DoOnLoadEnd(aStatus, successEvent, termEvent);
NS_ENSURE_SUCCESS(rv, rv);
// Set the status field as appropriate
if (NS_FAILED(aStatus)) {
DispatchError(aStatus, termEvent);
return NS_OK;
}
// Dispatch event to signify end of a successful operation
DispatchProgressEvent(successEvent);
DispatchProgressEvent(termEvent);
return NS_OK;
}
void
FileReader::Abort(ErrorResult& aRv)
{
if (mReadyState != LOADING) {
// XXX The spec doesn't say this
aRv.Throw(NS_ERROR_DOM_FILE_ABORT_ERR);
return;
}
ClearProgressEventTimer();
mReadyState = DONE;
// XXX The spec doesn't say this
mError = new DOMError(GetOwner(), NS_LITERAL_STRING("AbortError"));
// Revert status and result attributes
SetDOMStringToNull(mResult);
mResultArrayBuffer = nullptr;
mAsyncStream = nullptr;
mBlob = nullptr;
//Clean up memory buffer
FreeFileData();
// Dispatch the events
DispatchProgressEvent(NS_LITERAL_STRING(ABORT_STR));
DispatchProgressEvent(NS_LITERAL_STRING(LOADEND_STR));
}
NS_IMETHODIMP
FileIOObject::OnStopRequest(nsIRequest* aRequest, nsISupports* aContext,
nsresult aStatus)
{
// If we're here as a result of a call from Abort(),
// simply ignore the request.
if (aRequest != mChannel)
return NS_OK;
// Cancel the progress event timer
ClearProgressEventTimer();
// FileIOObject must be in DONE stage after an operation
mReadyState = 2;
nsString successEvent, termEvent;
nsresult rv = DoOnStopRequest(aRequest, aContext, aStatus,
successEvent, termEvent);
NS_ENSURE_SUCCESS(rv, rv);
// Set the status field as appropriate
if (NS_FAILED(aStatus)) {
DispatchError(aStatus, termEvent);
return NS_OK;
}
// Dispatch event to signify end of a successful operation
DispatchProgressEvent(successEvent);
DispatchProgressEvent(termEvent);
return NS_OK;
}
void
FileReader::Abort()
{
if (mReadyState == EMPTY || mReadyState == DONE) {
return;
}
MOZ_ASSERT(mReadyState == LOADING);
ClearProgressEventTimer();
mReadyState = DONE;
// XXX The spec doesn't say this
mError = DOMException::Create(NS_ERROR_DOM_ABORT_ERR);
// Revert status and result attributes
SetDOMStringToNull(mResult);
mResultArrayBuffer = nullptr;
mAsyncStream = nullptr;
mBlob = nullptr;
//Clean up memory buffer
FreeFileData();
// Dispatch the events
DispatchProgressEvent(NS_LITERAL_STRING(ABORT_STR));
DispatchProgressEvent(NS_LITERAL_STRING(LOADEND_STR));
}
nsresult
FileReader::OnLoadEnd(nsresult aStatus)
{
// Cancel the progress event timer
ClearProgressEventTimer();
// FileReader must be in DONE stage after an operation
mReadyState = DONE;
// Quick return, if failed.
if (NS_FAILED(aStatus)) {
FreeDataAndDispatchError(aStatus);
return NS_OK;
}
// In case we read a different number of bytes, we can assume that the
// underlying storage has changed. We should not continue.
if (mDataLen != mTotal) {
FreeDataAndDispatchError(NS_ERROR_FAILURE);
return NS_OK;
}
// ArrayBuffer needs a custom handling.
if (mDataFormat == FILE_AS_ARRAYBUFFER) {
OnLoadEndArrayBuffer();
return NS_OK;
}
nsresult rv = NS_OK;
// We don't do anything special for Binary format.
if (mDataFormat == FILE_AS_DATAURL) {
rv = GetAsDataURL(mBlob, mFileData, mDataLen, mResult);
} else if (mDataFormat == FILE_AS_TEXT) {
if (!mFileData && mDataLen) {
rv = NS_ERROR_OUT_OF_MEMORY;
} else if (!mFileData) {
rv = GetAsText(mBlob, mCharset, "", mDataLen, mResult);
} else {
rv = GetAsText(mBlob, mCharset, mFileData, mDataLen, mResult);
}
}
if (NS_WARN_IF(NS_FAILED(rv))) {
FreeDataAndDispatchError(rv);
return NS_OK;
}
FreeDataAndDispatchSuccess();
return NS_OK;
}
void
FileIOObject::Abort(ErrorResult& aRv)
{
if (mReadyState != 1) {
// XXX The spec doesn't say this
aRv.Throw(NS_ERROR_DOM_FILE_ABORT_ERR);
return;
}
ClearProgressEventTimer();
mReadyState = 2; // There are DONE constants on multiple interfaces,
// but they all have value 2.
// XXX The spec doesn't say this
mError = new DOMError(GetOwner(), NS_LITERAL_STRING("AbortError"));
nsString finalEvent;
DoAbort(finalEvent);
// Dispatch the events
DispatchProgressEvent(NS_LITERAL_STRING(ABORT_STR));
DispatchProgressEvent(finalEvent);
}
NS_IMETHODIMP
FileIOObject::Abort()
{
if (mReadyState != 1) {
// XXX The spec doesn't say this
return NS_ERROR_DOM_FILE_ABORT_ERR;
}
ClearProgressEventTimer();
mReadyState = 2; // There are DONE constants on multiple interfaces,
// but they all have value 2.
// XXX The spec doesn't say this
mError = DOMError::CreateWithName(NS_LITERAL_STRING("AbortError"));
nsString finalEvent;
nsresult rv = DoAbort(finalEvent);
// Dispatch the events
DispatchProgressEvent(NS_LITERAL_STRING(ABORT_STR));
DispatchProgressEvent(finalEvent);
return rv;
}
