Turn off undo/redo by default in Dash 1.0

[Moisan]

The current solution to remove the undo-redo button is to change the css of the page to hide it while using a hosted css file.

It would be much simpler to have an option that toggles this button, a bit like the graph toolbar.

[charleyferrari]

@Moisan Thanks for writing in. This seems like a good feature to have within Dash. Adding some tags to encourage some discussion and collaboration.

[ebber]

Would very much appreciate this feature as well. I am having trouble using the workaround. While I will be able to do it, it seems like a useful feature to be able to config, rather than making messy code.

[radekwlsk]

Is conditionally removing <Toolbar/> from

function UnconnectedAppContainer() {
    return (
        <Authentication>
            <div>
                <Toolbar/>
                <APIController/>
                <DocumentTitle/>
                <Loading/>
            </div>
        </Authentication>
    );
}

in dash-renderer/src/AppContainer.react.js enough to get rid of it without breaking other things?

[Myijin]

The undo button does not change anything for my dash app, which has input box and button.
My function looks like this:

@app.callback(Output('Docs', 'children'),
              [Input('button', 'n_clicks')],
              [State('input', 'value')])
def clean_data(n_clicks, input):
     if n_clicks is not None and input is not None:
            return ...

For example, I enter “A” in the input box and click the button, then enter “B” in the input box and click the button. Then clicking undo nothing is changed. I am hoping that the undo can go back to the result for “A”.

[rmarren1]

@Myijin I think this issue describes the behavior you are talking about plotly/dash-renderer#66, does that sound right?

[Myijin]

@rmarren1 That's right. When I only use the input box, the undo can go back to previous input. But it's not working after using button.

[rmarren1]

@Myijin Okay, I have a PR to fix this that is ready but have not merged, I'll see if I can expedite that

[vanbenschoten]

Is there any update on an easy option to remove the Undo-Redo button? I'll add my support for an easy toggle option as the button currently gets in the way of our dashboards.

[T4rk1n]

Include a css file in the assets folder with this:

._dash-undo-redo {
  display: none;
}

[vanbenschoten]

@T4rk1n thanks! That took care of the issue (though I still think a toggle feature would be helpful as well)