From 86a9e55b4310ec6e5ac975b0cf491656da07b72d Mon Sep 17 00:00:00 2001
From: RhiobeT <rhiobet@gmail.com>
Date: Sat, 2 Oct 2021 14:13:40 +0200
Subject: [PATCH] Add bookmarks for epubs

---
 src/main/resources/templates/epub-index.html | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/main/resources/templates/epub-index.html b/src/main/resources/templates/epub-index.html
index fe665e1..b644c4c 100644
--- a/src/main/resources/templates/epub-index.html
+++ b/src/main/resources/templates/epub-index.html
@@ -15,7 +15,7 @@
 		    <table style="table-layout: fixed;">
 			    <tr>
 			    <td style="text-align: left; padding-top: 0; padding-bottom: 0;"><a href="{info.directUrl}/..">back</a></td>
-			    <td style="text-align: right; padding-top: 0; padding-bottom: 0;"><a href="#" onclick="rendition.prev()">&lt;</a> <a href="#" onclick="rendition.next()">&gt;</a></td>
+			    <td style="text-align: right; padding-top: 0; padding-bottom: 0;"><a href="#" onclick="rendition.prev()">&lt;</a> <a href="#" onclick="saveBookmark()">🔖</a> <a href="#" onclick="rendition.next()">&gt;</a></td>
 			    </tr>
 		    </table>
 			<hr />
@@ -56,11 +56,19 @@
 					rendition.next();
 				});
 			}
+			function saveBookmark() {
+				document.cookie = "bookmark=" + rendition.currentLocation().start.cfi + "; Max-Age=31536000";
+			}
 			rendition.on("rendered", (e0,i) => {
 				setEvents(i.document);
 			});
 			setEvents(document);
-			rendition.display();
+			var bookmarkCookie = document.cookie.split('; ').find(row => row.startsWith('bookmark='));
+			if (bookmarkCookie !== undefined) {
+				rendition.display(bookmarkCookie.split('=')[1]);
+			} else {
+				rendition.display();
+			}
 		</script>
 	</body>
 </html>