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Make sure that we only save the tree reference if we have actually rendered it (properly this time, since apparently d3 will append to.. nothing…)

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Joseph Schorr 2014-05-01 16:15:01 -04:00
parent 8da4104e7b
commit e336185a22
1 changed files with 6 additions and 11 deletions
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17
static/js/graphing.js
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@ -186,6 +186,11 @@ ImageHistoryTree.prototype.draw = function(container) {
// Save the container.
this.container_ = container;
if (!$('#' + container)[0]) {
this.container_ = null;
return;
}
// Create the tree and all its components.
var tree = d3.layout.tree()
.separation(function() { return 2; });
@ -193,20 +198,10 @@ ImageHistoryTree.prototype.draw = function(container) {
var diagonal = d3.svg.diagonal()
.projection(function(d) { return [d.x, d.y]; });
var rootSvg = d3.select("#" + container).append("svg:svg")
var rootSvg = d3.select("#" + container).append("svg:svg")
.attr("class", "image-tree");
if (!rootSvg) {
this.container_ = null;
return;
}
var vis = rootSvg.append("svg:g");
if (!vis) {
this.container_ = null;
return;
}
var formatComment = this.formatComment_;
var formatTime = this.formatTime_;
var formatCommand = this.formatCommand_;