From 53deb0b8cd1899ec325eca93631b3e137bdd3ec3 Mon Sep 17 00:00:00 2001
From: Frédéric Guillot <fred@miniflux.net>
Date: Thu, 5 Jul 2018 22:18:51 -0700
Subject: Refactor assets bundler and split Javascript files

---
 ui/static/js/unread_counter_handler.js | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 ui/static/js/unread_counter_handler.js

(limited to 'ui/static/js/unread_counter_handler.js')

diff --git a/ui/static/js/unread_counter_handler.js b/ui/static/js/unread_counter_handler.js
new file mode 100644
index 0000000..87a1aaa
--- /dev/null
+++ b/ui/static/js/unread_counter_handler.js
@@ -0,0 +1,33 @@
+class UnreadCounterHandler {
+    static decrement(n) {
+        this.updateValue((current) => {
+            return current - n;
+        });
+    }
+
+    static increment(n) {
+        this.updateValue((current) => {
+            return current + n;
+        });
+    }
+
+    static updateValue(callback) {
+        let counterElements = document.querySelectorAll("span.unread-counter");
+        counterElements.forEach((element) => {
+            let oldValue = parseInt(element.textContent, 10);
+            element.innerHTML = callback(oldValue);
+        });
+
+        if (window.location.href.endsWith('/unread')) {
+            let oldValue = parseInt(document.title.split('(')[1], 10);
+            let newValue = callback(oldValue);
+
+            document.title = document.title.replace(
+                /(.*?)\(\d+\)(.*?)/,
+                function (match, prefix, suffix, offset, string) {
+                    return prefix + '(' + newValue + ')' + suffix;
+                }
+            );
+        }
+    }
+}
-- 
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