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fix: make the layer group visibility togglable #1129

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fix: make the layer group visibility togglable #1129

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8 changes: 8 additions & 0 deletions ipyleaflet/leaflet.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1211,12 +1211,15 @@ class LayerGroup(Layer):
----------
layers: list, default []
List of layers to include in the group.
visible: bool, default True
the visibility of the layer on the map
"""

_view_name = Unicode('LeafletLayerGroupView').tag(sync=True)
_model_name = Unicode('LeafletLayerGroupModel').tag(sync=True)

layers = Tuple().tag(trait=Instance(Layer), sync=True, **widget_serialization)
visible = Bool(True).tag(sync=True)

_layer_ids = List()

Expand Down Expand Up @@ -1341,6 +1344,11 @@ def clear(self):
"""Remove all layers from the group."""
self.layers = ()

@observe("visible")
def toggle_markers(self, visible):
"""Switch the layers visibility according to the master LayerGroup."""
[setattr(layer, "visible", visible["new"]) for layer in self.layers]


class FeatureGroup(LayerGroup):
"""FeatureGroup abstract class."""
Expand Down