from django import forms
from django.conf import settings
from django.contrib.gis.forms.widgets import BaseGeometryWidget
from django.urls import reverse_lazy
from django.utils.text import format_lazy
from . import SRID
class MapboxGlWidget(BaseGeometryWidget):
"""
An OpenLayers/OpenStreetMap-based widget.
"""
template_name = 'gis/mapbox-gl.html'
map_srid = SRID
default_lon = 5
default_lat = 47
class Media:
css = {
'all': (
settings.MAPBOX_GL_CSS,
)
}
js = (
settings.MAPBOX_GL_JS,
)
def __init__(self, attrs=None):
super().__init__()
for key in ('default_lon', 'default_lat'):
self.attrs[key] = getattr(self, key)
if attrs:
self.attrs.update(attrs)
@property
def media(self):
return (
forms.Media(css=self.Media.css, js=self.Media.js)
+ forms.Media(js=(
format_lazy('{}?format=js&type=widget', reverse_lazy('gis_endpoints')),
'maps/mapbox-gl.eo.js',
'maps/mapbox-gl-widget.js'))
)
def serialize(self, value):
return value.json if value else ''
class AdminMapboxGlWidget(MapboxGlWidget):
admin_site = True
def get_context(self, name, value, attrs):
context = super().get_context(name, value, attrs)
context['admin_site'] = self.admin_site
return context
