Merge pull request #1163 from n-riesco/pr-20161117-fix-issue-1157

Fix hover label in stacked bars

Author: etpinard

src/traces/bar/hover.js

@@ -65,17 +65,18 @@ module.exports = function hoverPoints(pointData, xval, yval, hovermode) {
     if(Color.opacity(mc)) pointData.color = mc;
     else if(Color.opacity(mlc) && mlw) pointData.color = mlc;
 
+    var size = (trace.base) ? di.b + di.s : di.s;
     if(trace.orientation === 'h') {
         pointData.x0 = pointData.x1 = xa.c2p(di.x, true);
-        pointData.xLabelVal = di.b + di.s;
+        pointData.xLabelVal = size;
 
         pointData.y0 = ya.c2p(barPos(di) - barDelta, true);
         pointData.y1 = ya.c2p(barPos(di) + barDelta, true);
         pointData.yLabelVal = di.p;
     }
     else {
         pointData.y0 = pointData.y1 = ya.c2p(di.y, true);
-        pointData.yLabelVal = di.b + di.s;
+        pointData.yLabelVal = size;
 
         pointData.x0 = xa.c2p(barPos(di) - barDelta, true);
         pointData.x1 = xa.c2p(barPos(di) + barDelta, true);