Merge pull request #3530 from plotly/hovertemplate-more

More hovertemplates!

Author: etpinard

src/components/fx/hover.js

@@ -945,7 +945,7 @@ function createHoverText(hoverData, opts, gd) {
             text = d[(hovermode === 'x' ? 'y' : 'x') + 'Label'] || '';
         }
         else if(d.xLabel === undefined) {
-            if(d.yLabel !== undefined) text = d.yLabel;
+            if(d.yLabel !== undefined && d.trace.type !== 'scattercarpet') text = d.yLabel;
         }
         else if(d.yLabel === undefined) text = d.xLabel;
         else text = '(' + d.xLabel + ', ' + d.yLabel + ')';

src/components/fx/hovertemplate_attributes.js

@@ -31,8 +31,7 @@ module.exports = function(opts, extra) {
         valType: 'string',
         role: 'info',
         dflt: '',
-        arrayOk: true,
-        editType: 'none',
+        editType: opts.editType || 'none',
         description: [
             'Template string used for rendering the information that appear on hover box.',
             'Note that this will override `hoverinfo`.',
@@ -46,5 +45,9 @@ module.exports = function(opts, extra) {
         ].join(' ')
     };
 
+    if(opts.arrayOk !== false) {
+        hovertemplate.arrayOk = true;
+    }
+
     return hovertemplate;
 };