From 7d0f47485fbc3274b458e8414282a5b820185289 Mon Sep 17 00:00:00 2001
From: Robert Knight <robertknight@gmail.com>
Date: Fri, 9 Oct 2020 13:36:25 +0100
Subject: [PATCH] Fix waiting for PDF to load

---
 src/annotator/anchoring/pdf.js | 4 ++--
 src/types/pdfjs.js             | 1 +
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/annotator/anchoring/pdf.js b/src/annotator/anchoring/pdf.js
index 0d5135b30c9..fdb34cf008e 100644
--- a/src/annotator/anchoring/pdf.js
+++ b/src/annotator/anchoring/pdf.js
@@ -79,10 +79,10 @@ async function getPageView(pageIndex) {
     // a "pdfPage" property.
     pageView = await new Promise(resolve => {
       const onPagesLoaded = () => {
-        document.removeEventListener('pagesloaded', onPagesLoaded);
+        pdfViewer.eventBus.off('pagesloaded', onPagesLoaded);
         resolve(pdfViewer.getPageView(pageIndex));
       };
-      document.addEventListener('pagesloaded', onPagesLoaded);
+      pdfViewer.eventBus.on('pagesloaded', onPagesLoaded);
     });
   }
 
diff --git a/src/types/pdfjs.js b/src/types/pdfjs.js
index 4150bd16085..ad90af19476 100644
--- a/src/types/pdfjs.js
+++ b/src/types/pdfjs.js
@@ -62,6 +62,7 @@
  * Defined in `web/pdf_viewer.js` in the PDF.js source.
  *
  * @prop {number} pagesCount
+ * @prop {EventBus} eventBus - Reference to the global event bus
  * @prop {(page: number) => PDFPageView|null} getPageView
  */