JS - Collect and execute actions at doc and pages level

* the goal is to execute actions like Open or OpenAction
 * can be tested with issue6106.pdf (auto-print)
 * once #12701 is merged, we can add page actions

src/shared/util.js

@@ -159,6 +159,9 @@ const AnnotationActionEventType = {
   F: "Format",
   V: "Validate",
   C: "Calculate",
+};
+
+const DocumentActionEventType = {
   WC: "WillClose",
   WS: "WillSave",
   DS: "DidSave",
@@ -166,6 +169,11 @@ const AnnotationActionEventType = {
   DP: "DidPrint",
 };
 
+const PageActionEventType = {
+  O: "PageOpen",
+  C: "PageClose",
+};
+
 const StreamType = {
   UNKNOWN: "UNKNOWN",
   FLATE: "FLATE",
@@ -1011,9 +1019,11 @@ export {
   FontType,
   ImageKind,
   CMapCompressionType,
+  DocumentActionEventType,
   AbortException,
   InvalidPDFException,
   MissingPDFException,
+  PageActionEventType,
   PasswordException,
   PasswordResponses,
   PermissionFlag,