Implement retrieval of latitude and longitude for checkpoint

aleksis/apps/paweljong/forms.py

@@ -504,6 +504,9 @@ class PersonGroupFormPerson(forms.Form):
 
 
 class EventCheckpointForm(forms.Form):
+    class Media:
+        js = ("js/paweljong/checkpoint.js",)
+
     layout = Layout("username")
 
     comment = forms.CharField(
@@ -525,7 +528,7 @@ class EventCheckpointForm(forms.Form):
         max_value=90.0,
         max_digits=8,
         decimal_palces=6,
-        widget=forms.HiddenInput()
+#        widget=forms.HiddenInput()
     )
     lon = forms.DecimalField(
         required=False,
@@ -533,5 +536,5 @@ class EventCheckpointForm(forms.Form):
         max_value=180.0,
         max_digits=9,
         decimal_palces=6,
-        widget=forms.HiddenInput()
+#        widget=forms.HiddenInput()
     )

aleksis/apps/paweljong/static/js/paweljong/checkpoint.js

+function setCheckpointCoords(position) {
+    $("[name='lat']").value = position.coords.latitude;
+    $("[name='lon']").value = position.coords.longitude;
+}
+
+$(document).ready(function($) {
+    if (navigator.geolocation) {
+        window.setInterval(function() {
+            navigator.geolocation.getCurrentPosition(setCheckpointCoords);
+        })
+    }
+});