jex detects and connects

jrx/popup.js

@@ -1,5 +1,15 @@
-
-
-document.getElementById('mk-detectable').onclick = function() {
-    alert('poop')
+async function active_tab_id() {
+    let active_tabs = await browser.tabs.query({active: true, currentWindow: true});
+    return active_tabs[0].id;
 }
+
+async function mk_detectable() {
+    let ati = await active_tab_id();
+    browser.tabs.sendMessage(ati,               // active tab
+                             'mk-detectable');  // message
+    document.getElementById('mk-detectable').disabled = true;
+
+}
+
+// detect button action
+document.getElementById('mk-detectable').onclick = mk_detectable;