fix manual-hover logic for event emitting

alexcjohnson · alexcjohnson · commit 69dc78147de4 · 2017-04-13T22:49:45.000-04:00
diff --git a/src/plots/cartesian/graph_interact.js b/src/plots/cartesian/graph_interact.js
@@ -629,7 +629,7 @@ function hover(gd, evt, subplot) {
     }
 
     // don't emit events if called manually
-    if(evt.target && !hoverChanged(gd, evt, oldhoverdata)) return;
+    if(!evt.target || !hoverChanged(gd, evt, oldhoverdata)) return;
 
     if(oldhoverdata) {
         gd.emit('plotly_unhover', {

Original file line number	Diff line number	Diff line change
`@@ -629,7 +629,7 @@ function hover(gd, evt, subplot) {`
`629`	`629`	`}`
`630`	`630`
`631`	`631`	`// don't emit events if called manually`
`632`		`- if(evt.target && !hoverChanged(gd, evt, oldhoverdata)) return;`
	`632`	`+ if(!evt.target \|\| !hoverChanged(gd, evt, oldhoverdata)) return;`
`633`	`633`
`634`	`634`	`if(oldhoverdata) {`
`635`	`635`	`gd.emit('plotly_unhover', {`