1 files changed, 20 insertions, 0 deletions
diff --git a/dom/filesystem/tests/script_promptHandler.js b/dom/filesystem/tests/script_promptHandler.js
new file mode 100644
index 0000000000..954c97402f
--- /dev/null
+++ b/dom/filesystem/tests/script_promptHandler.js
@@ -0,0 +1,20 @@
+/* eslint-env mozilla/frame-script */
+
+const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
+
+let dialogObserverTopic = "common-dialog-loaded";
+
+function dialogObserver(subj, topic, data) {
+  subj.document.querySelector("dialog").acceptDialog();
+  sendAsyncMessage("promptAccepted");
+}
+
+addMessageListener("init", message => {
+  Services.obs.addObserver(dialogObserver, dialogObserverTopic);
+  sendAsyncMessage("initDone");
+});
+
+addMessageListener("cleanup", message => {
+  Services.obs.removeObserver(dialogObserver, dialogObserverTopic);
+  sendAsyncMessage("cleanupDone");
+});