How to use the @theia/navigator/lib/browser/navigator-tree.WorkspaceRootNode.is function in @theia/navigator
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eclipse-theia / theia / packages / plugin-ext / src / main / browser / plugin-icon-theme-service.ts View on Github 
protected getClassNames(element: URI | URIIconReference | FileStat | FileStatNode | WorkspaceRootNode): string[] {
if (WorkspaceRootNode.is(element)) {
const name = this.labelProvider.getName(element);
if (element.expanded) {
return [this.rootFolderExpandedIcon, this.expandedFolderNameIcon(name)];
}
return [this.rootFolderIcon, this.folderNameIcon(name)];
}
if (DirNode.is(element)) {
if (element.expanded) {
const name = this.labelProvider.getName(element);
return [this.folderExpandedIcon, this.expandedFolderNameIcon(name)];
}
return this.getFolderClassNames(element);
}
if (FileStatNode.is(element)) {
return this.getFileClassNames(element, element.fileStat.uri);
}
