<!DOCTYPE html> <html> <head> <script type="application/javascript" src="/tests/SimpleTest/EventUtils.js"></script> <script> function doIs(arg1, arg2, arg3) { window.parent.postMessage("t " + encodeURIComponent(arg1) + " " + encodeURIComponent(arg2) + " " + encodeURIComponent(arg3), "*"); } function $(arg) { return document.getElementById(arg); } window.addEventListener("message", function(evt) { doIs(evt.data, "start", "Unexpected message"); $("target").focus(); sendString("Test"); var t = $("target"); doIs(t.value, "Test", "Typing should work"); (function() { SpecialPowers.wrap(t).QueryInterface(SpecialPowers.Ci.nsIDOMNSEditableElement).editor.undo(1); })() doIs(t.value, "", "Undo should work"); (function() { SpecialPowers.wrap(t).QueryInterface(SpecialPowers.Ci.nsIDOMNSEditableElement).editor.redo(1); })() doIs(t.value, "Test", "Redo should work"); window.parent.postMessage("f", "*"); }, "false"); </script> </head> <body> <input id="target"> </body> </html>