switch to YUI compressor for making packed JS -- 49k -> 42k

[dygraphs.git] / dygraph.js

diff --git a/dygraph.js b/dygraph.js
index 193f0f8..8858396 100644 (file)
--- a/dygraph.js
+++ b/dygraph.js
@@ -526,6 +526,7 @@ Dygraph.prototype.createDragInterface_ = function() {
 
   // Tracks whether the mouse is down right now
   var isZooming = false;
+  var isPanning = false;
   var dragStartX = null;
   var dragStartY = null;
   var dragEndX = null;
@@ -569,7 +570,7 @@ Dygraph.prototype.createDragInterface_ = function() {
     dragStartX = getX(event);
     dragStartY = getY(event);
 
-    if (event.altKey) {
+    if (event.altKey || event.shiftKey) {
       if (!self.dateWindow_) return;  // have to be zoomed in to pan.
       isPanning = true;
       dateRange = self.dateWindow_[1] - self.dateWindow_[0];
@@ -1644,7 +1645,13 @@ Dygraph.prototype.parseDataTable_ = function(data) {
   var ret = [];
   for (var i = 0; i < rows; i++) {
     var row = [];
-    if (!data.getValue(i, 0)) continue;
+    if (typeof(data.getValue(i, 0)) === 'undefined' ||
+        data.getValue(i, 0) === null) {
+      this.warning("Ignoring row " + i +
+                   " of DataTable because of undefined or null first column.");
+      continue;
+    }
+
     if (indepType == 'date') {
       row.push(data.getValue(i, 0).getTime());
     } else {