Add static instance

1 files changed, 17 insertions, 3 deletions

diff --git a/src/client/apis/recording/recordingApi.ts b/src/client/apis/recording/recordingApi.ts
index bdeeb79ea..9ad7b5165 100644
--- a/src/client/apis/recording/recordingApi.ts
+++ b/src/client/apis/recording/recordingApi.ts
@@ -1,6 +1,6 @@
 import { CollectionFreeFormView } from "../../views/collections/collectionFreeForm";
 import React, { useState } from "react";
-import { observable } from "mobx";
+import { observable, observe } from "mobx";
 
 type Movement = {
     time: number,
@@ -28,7 +28,14 @@ export class RecordingApi {
     private absoluteStart: number;
 
 
+    // create static instance and getter for global use
+    @observable static _instance: RecordingApi;
+    public static get instance(): RecordingApi { return RecordingApi._instance }
     constructor() {
+        // init the global instance
+        RecordingApi._instance = this;
+
+        // init the instance variables
         this.currentPresentation = RecordingApi.NULL_PRESENTATION
         this.isRecording = false;
         this.absoluteStart = -1;
@@ -53,10 +60,8 @@ export class RecordingApi {
 
         // (2) assign meta content if it exists
         this.currentPresentation.meta = meta || {}
-
         // (3) assign start date to currentPresenation
         this.currentPresentation.startDate = startDate
-
         // (4) set isRecording true to allow trackMovements
         this.isRecording = true
     }
@@ -146,4 +151,13 @@ export class RecordingApi {
         })
     }
 
+    // observer that can be updated to track the relevant FreeFormView
+    // public setFreeFormView = (view: CollectionFreeFormView): void => {
+    //     observe(view, 'Document', (change) => {
+    //         if (change.name === '_panX') {
+    //             this.trackMovements(view.Document._panX, view.Document._panY)
+    //         }
+    //     }
+    // }
+
 }
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