add dygraph-types.js

diff --git a/dygraph-types.js b/dygraph-types.js
new file mode 100644 (file)
index 0000000..4e90693
--- /dev/null
+++ b/dygraph-types.js
@@ -0,0 +1,16 @@
+// This file contains typedefs and externs that are needed by the Closure Compiler.
+
+/**
+ * @typedef {{
+ *   px: number,
+ *   py: number,
+ *   isZooming: boolean,
+ *   isPanning: boolean,
+ *   is2DPan: boolean,
+ *   cancelNextDblclick: boolean,
+ *   initializeMouseDown:
+ *       function(!Event, !Dygraph, !DygraphInteractionContext)
+ * }}
+ */
+var DygraphInteractionContext;
+