/**
* @private
+ * Add an event handler. This event handler is kept until the graph is
+ * destroyed with a call to graph.destroy().
+ *
+ * @param { DOM element } elem The element to add the event to.
+ * @param { String } type The type of the event, e.g. 'click' or 'mousemove'.
+ * @param { Function } fn The function to call on the event. The function takes
+ * one parameter: the event object.
+ */
+Dygraph.prototype.addEvent = function addEvent(elem, type, fn) {
+ Dygraph.addEvent(elem, type, fn);
+ this.registeredEvents_.push({ elem : elem, type : type, fn : fn });
+};
+
+/**
+ * @private
* Remove an event handler. This smooths a difference between IE and the rest of
* the world.
* @param { DOM element } elem The element to add the event to.
var dateStrSlashed;
var d;
- // Let the system try the format first.
- d = Dygraph.dateStrToMillis(dateStr);
- if (d && !isNaN(d)) return d;
+ // Let the system try the format first, with one caveat:
+ // YYYY-MM-DD[ HH:MM:SS] is interpreted as UTC by a variety of browsers.
+ // dygraphs displays dates in local time, so this will result in surprising
+ // inconsistencies. But if you specify "T" or "Z" (i.e. YYYY-MM-DDTHH:MM:SS),
+ // then you probably know what you're doing, so we'll let you go ahead.
+ // Issue: http://code.google.com/p/dygraphs/issues/detail?id=255
+ if (dateStr.search("-") == -1 ||
+ dateStr.search("T") != -1 || dateStr.search("Z") != -1) {
+ d = Dygraph.dateStrToMillis(dateStr);
+ if (d && !isNaN(d)) return d;
+ }
if (dateStr.search("-") != -1) { // e.g. '2009-7-12' or '2009-07-12'
dateStrSlashed = dateStr.replace("-", "/", "g");