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1 change: 1 addition & 0 deletions lib/timeline/component/Group.js
Original file line number Diff line number Diff line change
Expand Up @@ -534,6 +534,7 @@ Group.prototype.resetSubgroups = function() {
for (var subgroup in this.subgroups) {
if (this.subgroups.hasOwnProperty(subgroup)) {
this.subgroups[subgroup].visible = false;
this.subgroups[subgroup].height = 0;
}
}
};
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23 changes: 12 additions & 11 deletions lib/util.js
Original file line number Diff line number Diff line change
Expand Up @@ -621,26 +621,27 @@ exports.getAbsoluteTop = function (elem) {
* @param {Element} elem
* @param {String} className
*/
exports.addClassName = function (elem, className) {
exports.addClassName = function (elem, classNames) {
var classes = elem.className.split(' ');
if (classes.indexOf(className) == -1) {
classes.push(className); // add the class to the array
elem.className = classes.join(' ');
}
var newClasses = classNames.split(' ');
classes = classes.concat(newClasses.filter(function(className) {
return classes.indexOf(className) < 0;
}));
elem.className = classes.join(' ');
};

/**
* add a className to the given elements style
* @param {Element} elem
* @param {String} className
*/
exports.removeClassName = function (elem, className) {
exports.removeClassName = function (elem, classNames) {
var classes = elem.className.split(' ');
var index = classes.indexOf(className);
if (index != -1) {
classes.splice(index, 1); // remove the class from the array
elem.className = classes.join(' ');
}
var oldClasses = classNames.split(' ');
classes = classes.filter(function(className) {
return oldClasses.indexOf(className) < 0;
});
elem.className = classes.join(' ');
};

/**
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