1 files changed, 98 insertions, 0 deletions
diff --git a/docshell/test/browser/Bug422543Child.sys.mjs b/docshell/test/browser/Bug422543Child.sys.mjs
new file mode 100644
index 0000000000..524ac33ffd
--- /dev/null
+++ b/docshell/test/browser/Bug422543Child.sys.mjs
@@ -0,0 +1,98 @@
+class SHistoryListener {
+  constructor() {
+    this.retval = true;
+    this.last = "initial";
+  }
+
+  OnHistoryNewEntry(aNewURI) {
+    this.last = "newentry";
+  }
+
+  OnHistoryGotoIndex() {
+    this.last = "gotoindex";
+  }
+
+  OnHistoryPurge() {
+    this.last = "purge";
+  }
+
+  OnHistoryReload() {
+    this.last = "reload";
+    return this.retval;
+  }
+
+  OnHistoryReplaceEntry() {}
+}
+SHistoryListener.prototype.QueryInterface = ChromeUtils.generateQI([
+  "nsISHistoryListener",
+  "nsISupportsWeakReference",
+]);
+
+let listeners;
+
+export class Bug422543Child extends JSWindowActorChild {
+  constructor() {
+    super();
+  }
+
+  actorCreated() {
+    if (listeners) {
+      return;
+    }
+
+    this.shistory = this.docShell.nsIWebNavigation.sessionHistory;
+    listeners = [new SHistoryListener(), new SHistoryListener()];
+
+    for (let listener of listeners) {
+      this.shistory.legacySHistory.addSHistoryListener(listener);
+    }
+  }
+
+  cleanup() {
+    for (let listener of listeners) {
+      this.shistory.legacySHistory.removeSHistoryListener(listener);
+    }
+    this.shistory = null;
+    listeners = null;
+    return {};
+  }
+
+  getListenerStatus() {
+    return listeners.map(l => l.last);
+  }
+
+  resetListeners() {
+    for (let listener of listeners) {
+      listener.last = "initial";
+    }
+
+    return {};
+  }
+
+  notifyReload() {
+    let history = this.shistory.legacySHistory;
+    let rval = history.notifyOnHistoryReload();
+    return { rval };
+  }
+
+  setRetval({ num, val }) {
+    listeners[num].retval = val;
+    return {};
+  }
+
+  receiveMessage(msg) {
+    switch (msg.name) {
+      case "cleanup":
+        return this.cleanup();
+      case "getListenerStatus":
+        return this.getListenerStatus();
+      case "notifyReload":
+        return this.notifyReload();
+      case "resetListeners":
+        return this.resetListeners();
+      case "setRetval":
+        return this.setRetval(msg.data);
+    }
+    return null;
+  }
+}