Just a question: extract more values based on user click on Draw plugin.

[leclab0]

Hi, thanks for this great library. Really helpful!

btw I am a beginner in the web developing and github as well, I am so sorry if there are some stupidities on my questions.

I would like to ask, is it possible to return every value of click event?

At the moment, I am trying to present folium map on Streamlit. I used the st_folium with Draw plugin and then utilized some of its return values. However I would like to go further.

For instance, I want user to be able comment on a certain feature or a drawn polygon. For that I created a Popup page that contains a html from. I succeeded to attach the form into the GeojsonPopup however I have struggled to find a way to return the comment and not found it yet. Do you have any idea how to solve it?

Another example regarding clicking event, I would like to get clicking event when a features e.g., a polygon has finished to be created/edited. Is it possible to return a value on that event?

Thank you for you time.

Best wishes,
Leclab Research Assistance,

[hansthen]

In folium v0.18.0 javascript event handlers were added to the Draw plugin. This adds a new on parameter to the Draw plugin with a dictionary of event names and JsCode handlers.

One of the things you can do is call Streamlit.setComponentValue() in one of the events. Have a look at the documentation of the Draw plugin inside the Folium repo and also the realtime page in the streamlit-folium examples for more information on how to do this.

I think this issue can be closed.