Examples with FileSystemElement org.eclipse.ui.dialogs.FileSystemElement used on opensource projects

Example 6 with FileSystemElement

use of org.eclipse.ui.dialogs.FileSystemElement in project linuxtools by eclipse.

the class SelectFilesOperation method createElement.

/**
 * Creates and returns a <code>FileSystemElement</code> if the specified
 * file system object merits one. The criteria for this are: - if the file
 * system object is a container then it must have either a child container
 * or an associated file - if the file system object is a file then it must
 * have an extension suitable for selection
 */
@SuppressWarnings("rawtypes")
protected FileSystemElement createElement(FileSystemElement parent, Object fileSystemObject) throws InterruptedException {
    ModalContext.checkCanceled(monitor);
    boolean isContainer = provider.isFolder(fileSystemObject);
    String elementLabel = parent == null ? provider.getFullPath(fileSystemObject) : provider.getLabel(fileSystemObject);
    if (!isContainer && !hasDesiredExtension(elementLabel)) {
        return null;
    }
    FileSystemElement result = new FileSystemElement(elementLabel, parent, isContainer);
    result.setFileSystemObject(fileSystemObject);
    if (isContainer) {
        boolean haveChildOrFile = false;
        List children = provider.getChildren(fileSystemObject);
        if (children == null) {
            children = new ArrayList(1);
        }
        Iterator childrenEnum = children.iterator();
        while (childrenEnum.hasNext()) {
            if (createElement(result, childrenEnum.next()) != null) {
                haveChildOrFile = true;
            }
        }
        if (!haveChildOrFile && parent != null) {
            parent.removeFolder(result);
            result = null;
        }
    }
    return result;
}