本文整理汇总了C++中BlobImpl::IsDirectory方法的典型用法代码示例。如果您正苦于以下问题：C++ BlobImpl::IsDirectory方法的具体用法？C++ BlobImpl::IsDirectory怎么用？C++ BlobImpl::IsDirectory使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类BlobImpl的用法示例。
在下文中一共展示了BlobImpl::IsDirectory方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1:
nsresult
nsFileControlFrame::DnDListener::GetBlobImplForWebkitDirectory(nsIDOMFileList* aFileList,
BlobImpl** aBlobImpl)
{
*aBlobImpl = nullptr;
HTMLInputElement* inputElement =
HTMLInputElement::FromContent(mFrame->GetContent());
bool webkitDirPicker =
Preferences::GetBool("dom.webkitBlink.dirPicker.enabled", false) &&
inputElement->HasAttr(kNameSpaceID_None, nsGkAtoms::webkitdirectory);
if (!webkitDirPicker) {
return NS_OK;
}
if (!aFileList) {
return NS_ERROR_FAILURE;
}
FileList* files = static_cast<FileList*>(aFileList);
// webkitdirectory doesn't care about the length of the file list but
// only about the first item on it.
uint32_t len = files->Length();
if (len) {
File* file = files->Item(0);
if (file) {
BlobImpl* impl = file->Impl();
if (impl && impl->IsDirectory()) {
RefPtr<BlobImpl> retVal = impl;
retVal.swap(*aBlobImpl);
return NS_OK;
}
}
}
return NS_ERROR_FAILURE;
}示例2: GetAsFileWithPrincipal
already_AddRefed<FileSystemEntry>
DataTransferItem::GetAsEntryWithPrincipal(nsIPrincipal* aPrincipal,
ErrorResult& aRv)
{
RefPtr<File> file = GetAsFileWithPrincipal(aPrincipal, aRv);
if (NS_WARN_IF(aRv.Failed()) || !file) {
return nullptr;
}
nsCOMPtr<nsIGlobalObject> global;
// This is annoying, but DataTransfer may have various things as parent.
nsCOMPtr<EventTarget> target =
do_QueryInterface(mDataTransfer->GetParentObject());
if (target) {
global = target->GetOwnerGlobal();
} else {
nsCOMPtr<nsIDOMEvent> event =
do_QueryInterface(mDataTransfer->GetParentObject());
if (event) {
global = event->InternalDOMEvent()->GetParentObject();
}
}
if (!global) {
return nullptr;
}
RefPtr<FileSystem> fs = FileSystem::Create(global);
RefPtr<FileSystemEntry> entry;
BlobImpl* impl = file->Impl();
MOZ_ASSERT(impl);
if (impl->IsDirectory()) {
nsAutoString fullpath;
impl->GetMozFullPathInternal(fullpath, aRv);
if (aRv.Failed()) {
aRv.SuppressException();
return nullptr;
}
nsCOMPtr<nsIFile> directoryFile;
nsresult rv = NS_NewNativeLocalFile(NS_ConvertUTF16toUTF8(fullpath),
true, getter_AddRefs(directoryFile));
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
RefPtr<Directory> directory = Directory::Create(global, directoryFile);
entry = new FileSystemDirectoryEntry(global, directory, fs);
} else {
entry = new FileSystemFileEntry(global, file, fs);
}
Sequence<RefPtr<FileSystemEntry>> entries;
if (!entries.AppendElement(entry, fallible)) {
return nullptr;
}
fs->CreateRoot(entries);
return entry.forget();
}