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import streamlit as st
from bokeh.models.widgets import Button
from bokeh.models import CustomJS
from streamlit_bokeh_events import streamlit_bokeh_events
import leafmap.foliumap as leafmap
def app():
loc_button = Button(label="Get Device Location", max_width=150)
loc_button.js_on_event(
"button_click",
CustomJS(
code="""
navigator.geolocation.getCurrentPosition(
(loc) => {
document.dispatchEvent(new CustomEvent("GET_LOCATION", {detail: {lat: loc.coords.latitude, lon: loc.coords.longitude}}))
}
)
"""
),
)
result = streamlit_bokeh_events(
loc_button,
events="GET_LOCATION",
key="get_location",
refresh_on_update=False,
override_height=75,
debounce_time=0,
)
if result:
if "GET_LOCATION" in result:
loc = result.get("GET_LOCATION")
lat = loc.get("lat")
lon = loc.get("lon")
st.write(f"Lat, Lon: {lat}, {lon}")
m = leafmap.Map(center=(lat, lon), zoom=16)
m.add_basemap("ROADMAP")
popup = f"lat, lon: {lat}, {lon}"
m.add_marker(location=(lat, lon), popup=popup)
m.to_streamlit()
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