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Fix potential NPE in graphing class

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Joseph Schorr 2014-04-30 17:12:42 -04:00
parent 4e36be1a88
commit dc8765b590
1 changed files with 4 additions and 0 deletions
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4
static/js/graphing.js
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@ -197,6 +197,10 @@ ImageHistoryTree.prototype.draw = function(container) {
.attr("class", "image-tree"); .attr("class", "image-tree");
var vis = rootSvg.append("svg:g"); var vis = rootSvg.append("svg:g");
if (!vis) {
this.container_ = null;
return;
}
var formatComment = this.formatComment_; var formatComment = this.formatComment_;
var formatTime = this.formatTime_; var formatTime = this.formatTime_;