add ct key to choropleth* event data

... which makes `%{ct}` available to hovertemplate strings!

Author: etpinard

src/traces/choropleth/event_data.js

@@ -17,6 +17,7 @@ module.exports = function eventData(out, pt, trace, cd, pointNumber) {
     if(cdi.fIn && cdi.fIn.properties) {
         out.properties = cdi.fIn.properties;
     }
+    out.ct = cdi.ct;
 
     return out;
 };

test/jasmine/tests/choropleth_test.js

@@ -306,10 +306,10 @@ describe('Test choropleth hover:', function() {
     it('should include *properties* from input custom geojson', function(done) {
         var fig = Lib.extendDeep({}, require('@mocks/geo_custom-geojson.json'));
         fig.data = [fig.data[1]];
-        fig.data[0].hovertemplate = '%{properties.name}<extra></extra>';
+        fig.data[0].hovertemplate = '%{properties.name}<extra>%{ct[0]:.1f} | %{ct[1]:.1f}</extra>';
         fig.layout.geo.projection = {scale: 20};
 
-        run([300, 200], fig, ['New York']).then(done);
+        run([300, 200], fig, ['New York', '-75.1 | 42.6']).then(done);
     });
 });
 

test/jasmine/tests/choroplethmapbox_test.js

@@ -622,11 +622,11 @@ describe('@noCI Test choroplethmapbox hover:', function() {
             fig.data = [fig.data[1]];
             fig.data[0].locations = [100];
             fig.data[0].geojson.id = 100;
-            fig.data[0].hovertemplate = '### %{location}<extra>%{location} ###</extra>';
+            fig.data[0].hovertemplate = '### %{location}<extra>%{ct[0]:.1f} | %{ct[1]:.1f} ###</extra>';
             return fig;
         },
         nums: '### 100',
-        name: '100 ###',
+        name: '-86.7 | 32.0 ###',
         evtPts: [{location: 100, z: 10, pointNumber: 0, curveNumber: 0}]
     }];
 

test/jasmine/tests/geo_test.js

@@ -861,7 +861,7 @@ describe('Test geo interactions', function() {
             it('should contain the correct fields', function() {
                 expect(Object.keys(ptData)).toEqual([
                     'data', 'fullData', 'curveNumber', 'pointNumber', 'pointIndex',
-                    'location', 'z'
+                    'location', 'z', 'ct'
                 ]);
             });
 
@@ -889,7 +889,7 @@ describe('Test geo interactions', function() {
             it('should contain the correct fields', function() {
                 expect(Object.keys(ptData)).toEqual([
                     'data', 'fullData', 'curveNumber', 'pointNumber', 'pointIndex',
-                    'location', 'z'
+                    'location', 'z', 'ct'
                 ]);
             });
 
@@ -921,7 +921,7 @@ describe('Test geo interactions', function() {
             it('should contain the correct fields', function() {
                 expect(Object.keys(ptData)).toEqual([
                     'data', 'fullData', 'curveNumber', 'pointNumber', 'pointIndex',
-                    'location', 'z'
+                    'location', 'z', 'ct'
                 ]);
             });