void
DataTransfer::GetData(const nsAString& aFormat, nsAString& aData,
ErrorResult& aRv)
{
// return an empty string if data for the format was not found
aData.Truncate();
nsCOMPtr<nsIVariant> data;
nsresult rv = MozGetDataAt(aFormat, 0, getter_AddRefs(data));
if (NS_FAILED(rv)) {
if (rv != NS_ERROR_DOM_INDEX_SIZE_ERR) {
aRv.Throw(rv);
}
return;
}
if (data) {
nsAutoString stringdata;
data->GetAsAString(stringdata);
// for the URL type, parse out the first URI from the list. The URIs are
// separated by newlines
nsAutoString lowercaseFormat;
aRv = nsContentUtils::ASCIIToLower(aFormat, lowercaseFormat);
if (aRv.Failed()) {
return;
}
if (lowercaseFormat.EqualsLiteral("url")) {
int32_t lastidx = 0, idx;
int32_t length = stringdata.Length();
while (lastidx < length) {
idx = stringdata.FindChar('\n', lastidx);
// lines beginning with # are comments
if (stringdata[lastidx] == '#') {
if (idx == -1)
break;
}
else {
if (idx == -1)
aData.Assign(Substring(stringdata, lastidx));
else
aData.Assign(Substring(stringdata, lastidx, idx - lastidx));
aData = nsContentUtils::TrimWhitespace<nsCRT::IsAsciiSpace>(aData, true);
return;
}
lastidx = idx + 1;
}
}
else {
aData = stringdata;
}
}
}
FileList*
DataTransfer::GetFiles(ErrorResult& aRv)
{
if (mEventType != NS_DRAGDROP_DROP && mEventType != NS_DRAGDROP_DRAGDROP &&
mEventType != NS_PASTE) {
return nullptr;
}
if (!mFiles) {
mFiles = new FileList(static_cast<nsIDOMDataTransfer*>(this));
uint32_t count = mItems.Length();
for (uint32_t i = 0; i < count; i++) {
nsCOMPtr<nsIVariant> variant;
aRv = MozGetDataAt(NS_ConvertUTF8toUTF16(kFileMime), i, getter_AddRefs(variant));
if (aRv.Failed()) {
return nullptr;
}
if (!variant)
continue;
nsCOMPtr<nsISupports> supports;
nsresult rv = variant->GetAsISupports(getter_AddRefs(supports));
if (NS_FAILED(rv))
continue;
nsCOMPtr<nsIFile> file = do_QueryInterface(supports);
nsRefPtr<File> domFile;
if (file) {
domFile = File::CreateFromFile(GetParentObject(), file);
} else {
nsCOMPtr<FileImpl> fileImpl = do_QueryInterface(supports);
if (!fileImpl) {
continue;
}
domFile = new File(GetParentObject(), static_cast<FileImpl*>(fileImpl.get()));
}
if (!mFiles->Append(domFile)) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
}
}
return mFiles;
}
NS_IMETHODIMP
nsDOMDataTransfer::GetData(const nsAString& aFormat, nsAString& aData)
{
// return an empty string if data for the format was not found
aData.Truncate();
nsCOMPtr<nsIVariant> data;
nsresult rv = MozGetDataAt(aFormat, 0, getter_AddRefs(data));
if (rv == NS_ERROR_DOM_INDEX_SIZE_ERR)
return NS_OK;
NS_ENSURE_SUCCESS(rv, rv);
if (data) {
nsAutoString stringdata;
data->GetAsAString(stringdata);
// for the URL type, parse out the first URI from the list. The URIs are
// separated by newlines
if (aFormat.EqualsLiteral("URL")) {
PRInt32 lastidx = 0, idx;
PRInt32 length = stringdata.Length();
while (lastidx < length) {
idx = stringdata.FindChar('\n', lastidx);
// lines beginning with # are comments
if (stringdata[lastidx] == '#') {
if (idx == -1)
break;
}
else {
if (idx == -1)
aData.Assign(Substring(stringdata, lastidx));
else
aData.Assign(Substring(stringdata, lastidx, idx - lastidx));
aData = nsContentUtils::TrimWhitespace<nsCRT::IsAsciiSpace>(aData, PR_TRUE);
return NS_OK;
}
lastidx = idx + 1;
}
}
else {
aData = stringdata;
}
}
return NS_OK;
}
NS_IMETHODIMP
nsDOMDataTransfer::GetFiles(nsIDOMFileList** aFileList)
{
*aFileList = nsnull;
if (mEventType != NS_DRAGDROP_DROP && mEventType != NS_DRAGDROP_DRAGDROP)
return NS_OK;
if (!mFiles) {
mFiles = new nsDOMFileList();
NS_ENSURE_TRUE(mFiles, NS_ERROR_OUT_OF_MEMORY);
PRUint32 count = mItems.Length();
for (PRUint32 i = 0; i < count; i++) {
nsCOMPtr<nsIVariant> variant;
nsresult rv = MozGetDataAt(NS_ConvertUTF8toUTF16(kFileMime), i, getter_AddRefs(variant));
NS_ENSURE_SUCCESS(rv, rv);
if (!variant)
continue;
nsCOMPtr<nsISupports> supports;
rv = variant->GetAsISupports(getter_AddRefs(supports));
if (NS_FAILED(rv))
continue;
nsCOMPtr<nsIFile> file = do_QueryInterface(supports);
if (!file)
continue;
nsRefPtr<nsDOMFileFile> domFile = new nsDOMFileFile(file);
if (!mFiles->Append(domFile))
return NS_ERROR_FAILURE;
}
}
*aFileList = mFiles;
NS_ADDREF(*aFileList);
return NS_OK;
}
void
DataTransfer::MozGetDataAt(JSContext* aCx, const nsAString& aFormat,
uint32_t aIndex,
JS::MutableHandle<JS::Value> aRetval,
mozilla::ErrorResult& aRv)
{
nsCOMPtr<nsIVariant> data;
aRv = MozGetDataAt(aFormat, aIndex, getter_AddRefs(data));
if (aRv.Failed()) {
return;
}
if (!data) {
return;
}
JS::Rooted<JS::Value> result(aCx);
if (!VariantToJsval(aCx, data, aRetval)) {
aRv = NS_ERROR_FAILURE;
return;
}
}
JS::Value
DataTransfer::MozGetDataAt(JSContext* aCx, const nsAString& aFormat,
uint32_t aIndex, mozilla::ErrorResult& aRv)
{
nsCOMPtr<nsIVariant> data;
aRv = MozGetDataAt(aFormat, aIndex, getter_AddRefs(data));
if (aRv.Failed()) {
return JS::UndefinedValue();
}
if (!data) {
return JS::NullValue();
}
JS::Rooted<JS::Value> result(aCx);
JS::Rooted<JSObject*> scope(aCx, GetWrapper());
if (!VariantToJsval(aCx, scope, data, &result)) {
aRv = NS_ERROR_FAILURE;
return JS::UndefinedValue();
}
return result;
}
FileList*
DataTransfer::GetFiles(ErrorResult& aRv)
{
if (mEventType != NS_DRAGDROP_DROP && mEventType != NS_DRAGDROP_DRAGDROP &&
mEventType != NS_PASTE) {
return nullptr;
}
if (!mFiles) {
mFiles = new FileList(static_cast<nsIDOMDataTransfer*>(this));
uint32_t count = mItems.Length();
for (uint32_t i = 0; i < count; i++) {
nsCOMPtr<nsIVariant> variant;
aRv = MozGetDataAt(NS_ConvertUTF8toUTF16(kFileMime), i, getter_AddRefs(variant));
if (aRv.Failed()) {
return nullptr;
}
if (!variant)
continue;
nsCOMPtr<nsISupports> supports;
nsresult rv = variant->GetAsISupports(getter_AddRefs(supports));
if (NS_FAILED(rv))
continue;
nsCOMPtr<nsIFile> file = do_QueryInterface(supports);
nsRefPtr<File> domFile;
if (file) {
#ifdef DEBUG
if (XRE_GetProcessType() == GeckoProcessType_Default) {
bool isDir;
file->IsDirectory(&isDir);
MOZ_ASSERT(!isDir, "How did we get here?");
}
#endif
domFile = File::CreateFromFile(GetParentObject(), file);
} else {
nsCOMPtr<BlobImpl> blobImpl = do_QueryInterface(supports);
if (!blobImpl) {
continue;
}
MOZ_ASSERT(blobImpl->IsFile());
domFile = File::Create(GetParentObject(), blobImpl);
MOZ_ASSERT(domFile);
}
if (!mFiles->Append(domFile)) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
}
}
return mFiles;
}