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Issue 1770: Add on_each_feature handler to GeoJson #2136

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Merged
merged 1 commit into from
Apr 22, 2025
Merged

Issue 1770: Add on_each_feature handler to GeoJson #2136

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11 changes: 11 additions & 0 deletions folium/features.py
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Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,7 @@
from folium.map import FeatureGroup, Icon, Layer, Marker, Popup, Tooltip
from folium.template import Template
from folium.utilities import (
JsCode,
TypeBoundsReturn,
TypeContainer,
TypeJsonValue,
Expand Down Expand Up @@ -516,6 +517,10 @@ class GeoJson(Layer):
embedding is only supported if you provide a file link or URL.
zoom_on_click: bool, default False
Set to True to enable zooming in on a geometry when clicking on it.
on_each_feature: JsCode, optional
Javascript code to be called on each feature.
See https://leafletjs.com/examples/geojson/
`onEachFeature` for more information.
**kwargs
Keyword arguments are passed to the geoJson object as extra options.

Expand Down Expand Up @@ -585,6 +590,10 @@ class GeoJson(Layer):
{%- endif %}

function {{this.get_name()}}_onEachFeature(feature, layer) {
{%- if this.on_each_feature %}
({{this.on_each_feature}})(feature, layer);
{%- endif %}

layer.on({
{%- if this.highlight %}
mouseout: function(e) {
Expand Down Expand Up @@ -679,6 +688,7 @@ def __init__(
embed: bool = True,
popup: Optional["GeoJsonPopup"] = None,
zoom_on_click: bool = False,
on_each_feature: Optional[JsCode] = None,
marker: Union[Circle, CircleMarker, Marker, None] = None,
**kwargs: Any,
):
Expand All @@ -705,6 +715,7 @@ def __init__(
self.popup_keep_highlighted = popup_keep_highlighted

self.marker = marker
self.on_each_feature = on_each_feature
self.options = remove_empty(**kwargs)

self.data = self.process_data(data)
Expand Down