Add options page

A minimal, unstyled options page for the extension is now accessible
via the Chrome Extensions panel. This options page allows users to
customise the refresh interval of the ScrumDo board page.

1 files changed, 25 insertions, 0 deletions

diff --git a/options.js b/options.js
new file mode 100644
index 0000000..f3c3f4a
--- /dev/null
+++ b/options.js
@@ -0,0 +1,25 @@
+// Saves options to localStorage.
+function save_options() {
+  var refresh_interval_el = document.getElementById("refresh-interval");
+  var refresh_interval = refresh_interval_el.value;
+  localStorage["refresh_interval"] = refresh_interval;
+
+  // Update status to let user know options were saved.
+  var status = document.getElementById("status");
+  status.innerHTML = "Options Saved.";
+  setTimeout(function() {
+    status.innerHTML = "";
+  }, 750);
+}
+
+// Restores select box state to saved value from localStorage.
+function restore_options() {
+  var refresh_interval = localStorage["refresh_interval"];
+  if (!refresh_interval) {
+    return;
+  }
+  var refresh_interval_el = document.getElementById("refresh-interval");
+  refresh_interval_el.value = refresh_interval;
+}
+document.addEventListener('DOMContentLoaded', restore_options);
+document.querySelector('#save').addEventListener('click', save_options);