poll xposting ui

scripts/post_poll.js

@@ -0,0 +1,20 @@
+window.addEventListener('DOMContentLoaded', () => {
+  const channelSelector = document.querySelector('select[name="channelid"]');
+  document.querySelector('input[name="broadcast"]').disabled = channelSelector.value === '-1';
+  channelSelector.onchange = validateBroadcastStatus;
+});
+
+function validateBroadcastStatus() {
+  const postToChannel = parseInt(this.value) > 0;
+  const checkbox = document.querySelector('input[name="broadcast"]');
+  if (!postToChannel) {
+    checkbox.dataset.wasChecked = checkbox.checked;
+    checkbox.checked = false;
+    checkbox.disabled = true;
+  } else {
+    if (checkbox.disabled && checkbox.dataset.wasChecked !== undefined) {
+      checkbox.checked = checkbox.dataset.wasChecked === 'true';
+    }
+    checkbox.disabled = false;
+  }
+}