provide missing x and y texttemplate for histogram, bar, funnel and waterfall

Author: archmoj

src/traces/bar/plot.js

@@ -631,10 +631,11 @@ function calcTexttemplate(fullLayout, cd, index, xa, ya) {
     if(!texttemplate) return '';
     var isWaterfall = (trace.type === 'waterfall');
     var isFunnel = (trace.type === 'funnel');
+    var isHorizontal = trace.orientation === 'h';
 
     var pLetter, pAxis;
     var vLetter, vAxis;
-    if(trace.orientation === 'h') {
+    if(isHorizontal) {
         pLetter = 'y';
         pAxis = ya;
         vLetter = 'x';
@@ -669,6 +670,11 @@ function calcTexttemplate(fullLayout, cd, index, xa, ya) {
     var pt = {};
     appendArrayPointValue(pt, trace, cdi.i);
 
+    if(pt.x === undefined) pt.x = isHorizontal ? obj.value : obj.label;
+    if(pt.y === undefined) pt.y = isHorizontal ? obj.label : obj.value;
+    if(pt.xLabel === undefined) pt.xLabel = isHorizontal ? obj.valueLabel : obj.labelLabel;
+    if(pt.yLabel === undefined) pt.yLabel = isHorizontal ? obj.labelLabel : obj.valueLabel;
+
     if(isWaterfall) {
         obj.delta = +cdi.rawS || cdi.s;
         obj.deltaLabel = formatNumber(obj.delta);