From 80910996b07527f0941560bca5b598286a16ff9f Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <noreply@fakecake.org>
Date: Tue, 13 Mar 2018 15:36:55 +0300
Subject: react to device orientation change to preserve lastread position

---
 js/read.js | 43 +++++++++++++++++++++++++++++++++++++++++++
 read.html  | 29 +++--------------------------
 2 files changed, 46 insertions(+), 26 deletions(-)

diff --git a/js/read.js b/js/read.js
index 61fa44e..b0b7cff 100644
--- a/js/read.js
+++ b/js/read.js
@@ -26,6 +26,33 @@ function toggle_ui() {
 		$(".header,.footer").fadeIn();
 }
 
+function open_lastread() {
+	localforage.getItem(cacheId("lastread")).then(function(item) {
+		console.log('lr local', item);
+
+		item = item || {};
+
+		if (item.cfi) book.gotoCfi(item.cfi);
+
+		if (navigator.onLine) {
+
+			$.post("backend.php", { op: "getlastread", id: $.urlParam("id") }, function(data) {
+				console.log('lr remote', data);
+
+				if (navigator.onLine && data) {
+					localforage.setItem(cacheId("lastread"),
+						{cfi: data.cfi, page: data.page, total: data.total});
+
+					if (item.cfi != data.cfi && (!item.page || data.page > item.page))
+						book.gotoCfi(data.cfi);
+
+				}
+			});
+		}
+
+	});
+}
+
 function next_page() {
 	_store_position = 1;
 
@@ -76,6 +103,22 @@ function hotkey_handler(e) {
 $(document).ready(function() {
 	document.onkeydown = hotkey_handler;
 
+	$(window).on("orientationchange", function(evt) {
+		console.log("orientationchange");
+
+		$(".loading").show();
+		$(".loading_message").html("Opening chapter...");
+
+		window.setTimeout(function() {
+			open_lastread();
+
+			window.setTimeout(function() {
+				$(".loading").hide();
+			}, 500);
+
+		}, 1000);
+	});
+
 	$(window).on("mouseup", function(evt) {
 		if (evt.button == 0) {
 
diff --git a/read.html b/read.html
index 7b48a3c..f37bb95 100644
--- a/read.html
+++ b/read.html
@@ -738,31 +738,6 @@
 				localforage.setItem(cacheId("pagination"), pageList);
 			}
 
-			localforage.getItem(cacheId("lastread")).then(function(item) {
-				console.log('lr local', item);
-
-				item = item || {};
-
-				if (item.cfi) book.gotoCfi(item.cfi);
-
-				if (navigator.onLine) {
-
-					$.post("backend.php", { op: "getlastread", id: $.urlParam("id") }, function(data) {
-						console.log('lr remote', data);
-
-						if (navigator.onLine && data) {
-							localforage.setItem(cacheId("lastread"),
-								{cfi: data.cfi, page: data.page, total: data.total});
-
-							if (item.cfi != data.cfi && (!item.page || data.page > item.page))
-								book.gotoCfi(data.cfi);
-
-						}
-					});
-				}
-
-			});
-
 			var curPage = book.pagination.pageFromCfi(book.getCurrentLocationCfi());
 
 			$("#total_pages").html(book.pagination.totalPages);
@@ -773,9 +748,11 @@
 				$("#page_pct").html(pct + "%");
 			}
 
+			open_lastread();
+
 			window.setTimeout(function() {
 				$(".loading").hide();
-			}, 1000);
+			}, 1500);
 
 			$(".location").click(function() {
 				var current = book.pagination.pageFromCfi(book.getCurrentLocationCfi());
-- 
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