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-rw-r--r--app/javascript/flavours/glitch/utils/notifications.js30
1 files changed, 30 insertions, 0 deletions
diff --git a/app/javascript/flavours/glitch/utils/notifications.js b/app/javascript/flavours/glitch/utils/notifications.js
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+++ b/app/javascript/flavours/glitch/utils/notifications.js
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+// Handles browser quirks, based on
+// https://developer.mozilla.org/en-US/docs/Web/API/Notifications_API/Using_the_Notifications_API
+
+const checkNotificationPromise = () => {
+  try {
+    // eslint-disable-next-line promise/catch-or-return, promise/valid-params
+    Notification.requestPermission().then();
+  } catch(e) {
+    return false;
+  }
+
+  return true;
+};
+
+const handlePermission = (permission, callback) => {
+  // Whatever the user answers, we make sure Chrome stores the information
+  if(!('permission' in Notification)) {
+    Notification.permission = permission;
+  }
+
+  callback(Notification.permission);
+};
+
+export const requestNotificationPermission = (callback) => {
+  if (checkNotificationPromise()) {
+    Notification.requestPermission().then((permission) => handlePermission(permission, callback)).catch(console.warn);
+  } else {
+    Notification.requestPermission((permission) => handlePermission(permission, callback));
+  }
+};