Bring back tooltips. bug 297818, r=vlad

calendar/resources/content/mouseoverPreviews.js

@@ -61,9 +61,9 @@ function onMouseOverGridOccurrence( occurrenceBoxMouseEvent )
   if ("occurrence" in occurrenceBoxMouseEvent.currentTarget) {
     // occurrence of repeating event or todo
     var occurrence = occurrenceBoxMouseEvent.currentTarget.occurrence;
-    var item = occurrence.item;
-    var start = occurrence.occurrenceStartDate.jsDate;
-    var endEx = occurrence.occurrenceEndDate.jsDate;
+    var item = occurrence;
+    var start = occurrence.startDate.jsDate;
+    var endEx = occurrence.endDate.jsDate;
 
     const toolTip = document.getElementById( "gridOccurrenceTooltip" );
     var holderBox = null;
@@ -144,14 +144,14 @@ function getPreviewForTask( toDoItem )
       hasHeader = true;
     }
    
-    if (toDoItem.entryDate.isValid)
+    if (toDoItem.entryDate && toDoItem.entryDate.isValid)
     {
       var startDate = toDoItem.entryDate.jsDate;
       boxAppendLabeledDateTime(vbox, "tooltipStart", startDate, false);
       hasHeader = true;
     }
    
-    if (toDoItem.dueDate.isValid)
+    if (toDoItem.dueDat && toDoItem.dueDate.isValid)
     {
       var dueDate = toDoItem.dueDate.jsDate;
       boxAppendLabeledDateTime(vbox, "tooltipDue", dueDate, false);

calendar/resources/content/unifinderToDo.js

@@ -274,7 +274,7 @@ function ToDoProgressAtom( aTodo )
   if (completed)
       return "completed";
 
-  if (aTodo.dueDate.isValid) {
+  if (aTodo.dueDate && aTodo.dueDate.isValid) {
       if (aTodo.dueDate.jsDate.getTime() < now.getTime())
           return "overdue";
       else if (aTodo.dueDate.year == now.getFullYear() &&
@@ -283,7 +283,7 @@ function ToDoProgressAtom( aTodo )
           return "duetoday";
   }
 
-  if (aTodo.entryDate.isValid &&
+  if (aTodo.entryDate && aTodo.entryDate.isValid &&
       aTodo.entryDate.jsDate.getTime() < now.getTime())
       return "inprogress";