From d5991348c22a048225dfef4045f8706bb44f3343 Mon Sep 17 00:00:00 2001
From: Daniyar Itegulov <ditegulov@gmail.com>
Date: Sat, 6 Jun 2020 19:02:08 +1000
Subject: [PATCH] Make book player restore location on resume

---
 src/plugins/bookPlayer/plugin.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/plugins/bookPlayer/plugin.js b/src/plugins/bookPlayer/plugin.js
index b655b038a8..41c651cebf 100644
--- a/src/plugins/bookPlayer/plugin.js
+++ b/src/plugins/bookPlayer/plugin.js
@@ -238,11 +238,17 @@ export class BookPlayer {
 
                     this.bindEvents();
 
-                    return this._rendition.book.locations.generate(1024).then(() => {
+                    return this._rendition.book.locations.generate(1024).then(async () => {
                         if (cancellationToken.shouldCancel) {
                             return reject();
                         }
 
+                        const percentageTicks = options.startPositionTicks / 10000000;
+                        if (percentageTicks !== 0.0) {
+                            const resumeLocation = book.locations.cfiFromPercentage(percentageTicks);
+                            await rendition.display(resumeLocation);
+                        }
+
                         this._loaded = true;
                         epubElem.style.display = 'block';
                         rendition.on('relocated', (locations) => {