private Column<FileSystemItem, Boolean> addSelectionColumn() {
Column<FileSystemItem, Boolean> checkColumn =
new Column<FileSystemItem, Boolean>(
new CheckboxCell(true, false) {
@Override
public void render(Context context, Boolean value, SafeHtmlBuilder sb) {
// don't render the check box if its for the parent path
if (parentPath_ == null || context.getIndex() > 0) super.render(context, value, sb);
}
}) {
@Override
public Boolean getValue(FileSystemItem item) {
return selectionModel_.isSelected(item);
}
};
checkColumn.setVerticalAlignment(HasVerticalAlignment.ALIGN_TOP);
filesDataGrid_.addColumn(checkColumn);
filesDataGrid_.setColumnWidth(checkColumn, CHECK_COLUMN_WIDTH_PIXELS, Unit.PX);
return checkColumn;
}
