Create a checkbox+dropdown list of checkbox

slamer59 · October 19, 2020, 9:24pm

I finally got something digging the documentation

I mirror what Crosselector do. I took advantage of CompositeWidget.

holoviz/panel/blob/3961571aecf125e642bdfd092e99189a18ba551d/panel/widgets/base.py#L160


          A list of value states to explore.
        getter: callable
          A function that returns the state value given the model
        on_change: string
          The name of the widget property to attach a callback on
        js_getter: string
          JS snippet that returns the state value given the model
        """


class CompositeWidget(Widget):
    """
    A baseclass for widgets which are made up of two or more other
    widgets
    """

    __abstract = True

    _composite_type = Row

    def __init__(self, **params):

The dropdown is a Checkbox where I replace via CSS the appearance.
It was not so easy but I learn a lot aha.

The only things I miss now is to inject directly the CSS for this widget. I use a Font awesome icon to replace it.

pn.extension(raw_css=[css], css_files=css_files)

Next step would be to have a “SuperComposit” widget to embed the two TreeViewCheckBox or not…

Any suggestions for this appreciated.

I may do PR if interested.