Keyboard shortcuts for mail and a shortcut list, offline help and refresh on return, push alerts for new mail

public/reminders.js

@@ -21,6 +21,7 @@ async function remindersInit() {
   box.innerHTML = `<label class="row" style="cursor:pointer"><span class="grow"><b>Reminders on this device</b><small id="remst" style="white-space:normal">${Notification.permission === 'denied' ? 'Blocked in the browser settings for this site; allow notifications there first' : on ? 'On' : 'Off'}${info.devices ? ' · ' + info.devices + (info.devices === 1 ? ' device' : ' devices') + ' in total' : ''}</small></span><input type="checkbox" id="remon" ${on ? 'checked' : ''} ${Notification.permission === 'denied' ? 'disabled' : ''}></label>
     ${allowed('tasks') ? `<label class="row" style="cursor:pointer"><span class="grow"><b>Tasks due today</b><small>One summary each morning</small></span><input type="checkbox" id="remt" ${info.tasks ? 'checked' : ''}></label>
     <div class="row"><span class="grow"><b>Morning time</b></span><input type="time" id="remat" value="${esc(info.tasksAt)}" style="width:auto;min-width:130px"></div>` : ''}
+    ${allowed('mail') ? `<label class="row" style="cursor:pointer"><span class="grow"><b>New mail</b><small>When a new unread message arrives (checked every few minutes)</small></span><input type="checkbox" id="remmail" ${info.mail ? 'checked' : ''}></label>` : ''}
     ${allowed('calendar') ? `<label class="row" style="cursor:pointer"><span class="grow"><b>Upcoming events</b><small>Shortly before they start</small></span><input type="checkbox" id="reme" ${info.events ? 'checked' : ''}></label>
     <div class="row"><span class="grow"><b>How early</b></span><select id="remm" style="width:auto">${[5, 10, 15, 30, 60].map(m => `<option value="${m}" ${m === info.eventMins ? 'selected' : ''}>${m} min</option>`).join('')}</select></div>` : ''}
     <div class="row"><span class="grow"><small>Send a test to every device that is on</small></span><button class="btn ghost" id="remtest" style="min-height:36px">Test</button></div>
@@ -42,7 +43,7 @@ async function remindersInit() {
     } catch (e) { on1.checked = !on1.checked; toast(e.message); }
   };
   const pref = (id, key, get) => { const el = document.getElementById(id); if (el) el.onchange = () => post('prefs', { [key]: get(el) }).catch(e => toast(e.message)); };
-  pref('remt', 'tasks', e => e.checked); pref('remat', 'tasksAt', e => e.value); pref('reme', 'events', e => e.checked); pref('remm', 'eventMins', e => +e.value);
+  pref('remmail', 'mail', e => e.checked); pref('remt', 'tasks', e => e.checked); pref('remat', 'tasksAt', e => e.value); pref('reme', 'events', e => e.checked); pref('remm', 'eventMins', e => +e.value);
   document.getElementById('remclear').onclick = async () => {
     try {
       const list = await reg.getNotifications(); list.forEach(n => n.close());