Added logInteractionsAbove limit

lib/interaction.js

@@ -910,9 +910,15 @@ export class InteractionMapper extends InteractionDelegate {
     constructor(
         element,
         target,
-        { tapDistance = 10, longPressTime = 500.0, useCapture = true, mouseWheelElement = null } = {}
+        { tapDistance = 10, longPressTime = 500.0, useCapture = true, mouseWheelElement = null, logInteractionsAbove = 12 } = {}
     ) {
         super(element, target, { tapDistance, useCapture, longPressTime, mouseWheelElement })
+        this.logInteractionsAbove = logInteractionsAbove
+    }
+
+    log(message) {
+        let logger = (typeof app != 'undefined' && app.log) ? app : console
+        logger.log(message)
     }
 
     get targetInterface() {
@@ -934,6 +940,11 @@ export class InteractionMapper extends InteractionDelegate {
                 this.interaction.addTarget(key, found)
             }
         }
+        let size = this.interaction.current.size
+        let limit = this.logInteractionsAbove
+        if (size > limit) {
+            this.log(`Number of interactions ${size} exceeds ${limit}`)
+        }
     }
 
     onMouseWheel(event) {