History.prev to jump one time interval back

dborzov · Jan 21, 2015 · bfdc504 · bfdc504
1 parent 5121ee1
commit bfdc504
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/src/model/history.js b/src/model/history.js
@@ -119,6 +119,15 @@ NetVis.prototype._constructHistory = function() {
 		}
 	};
 
+	self.history.prev = function() {
+		if (!self._selectedTimeInterval) {
+			return;
+		}
+		if (self._selectedTimeInterval.prev) {
+			self._selectedTimeInterval = self._selectedTimeInterval.prev;
+		}
+	};
+
 	// add default time margin moments
 	self.history.loadEvent({"tag":"end"},moment("3000-01-01"));
 	self.history.loadEvent({"tag":"start"},moment("1970-01-01"));