Added logging module

lib/bundle.js

@@ -5,6 +5,7 @@ import Events from './events.js'
 import {DOMFlip, DOMFlippable, CardLoader, PDFLoader, ImageLoader, FrameLoader, HTMLLoader} from './flippable.js'
 import Index from './index.js'
 import Interface from './interface.js'
+import Logging from './logging.js'
 import Poppable from './poppable.js'
 import PopupMenu from './popupmenu.js'
 import Popup from './popup.js'
@@ -60,6 +61,7 @@ window.InteractionDelta = InteractionDelta
 window.InteractionMapper = InteractionMapper
 window.InteractionPoints = InteractionPoints
 window.Interface = Interface
+window.Logging = Logging
 window.PointMap = PointMap
 window.Rect = Rect
 window.Points = Points

lib/interaction.js

@@ -4,6 +4,7 @@
 import Interface from './interface.js'
 import { Points, Angle, MapProxy } from './utils.js'
 import Events from './events.js'
+import Logging from './logging.js'
 
 /** Interaction patterns
 
@@ -916,11 +917,6 @@ export class InteractionMapper extends InteractionDelegate {
         this.logInteractionsAbove = logInteractionsAbove
     }
 
-    log(message) {
-        let logger = (typeof app != 'undefined' && app.log) ? app : console
-        logger.log(message)
-    }
-
     get targetInterface() {
         return IInteractionMapperTarget
     }
@@ -943,7 +939,7 @@ export class InteractionMapper extends InteractionDelegate {
         let size = this.interaction.current.size
         let limit = this.logInteractionsAbove
         if (size > limit) {
-            this.log(`Number of interactions ${size} exceeds ${limit}`)
+            Logging.log(`Number of interactions ${size} exceeds ${limit}`)
         }
     }
 

lib/logging.js

@@ -0,0 +1,12 @@
+/** Basic class for app specific logging requirements.
+ * Can be used to implement persistent logging in electron apps.
+ */
+export default class Logging {
+
+    /** Static log function.
+     * @param {*} message
+     */
+    log(message) {
+        console.log(message)
+    }
+}