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Don't call behavior.off unless behaviors were actually added

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Bryan Housel
2016-11-01 21:42:37 -04:00
parent 92ea045d79
commit 1043402b88
1 changed files with 4 additions and 0 deletions
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4
modules/ui/fields/restrictions.js
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@@ -43,6 +43,7 @@ export function uiFieldRestrictions(field, context) {
var dispatch = d3.dispatch('change'),
breathe = behaviorBreathe(context),
hover = behaviorHover(context),
initialized = false,
vertexID,
fromNodeID;
@@ -100,6 +101,7 @@ export function uiFieldRestrictions(field, context) {
var surface = wrap.selectAll('.surface');
if (!enter.empty()) {
initialized = true;
surface
.call(breathe)
.call(hover);
@@ -222,6 +224,8 @@ export function uiFieldRestrictions(field, context) {
restrictions.off = function(selection) {
if (!initialized) return;
selection.selectAll('.surface')
.call(hover.off)
.call(breathe.off)