<!DOCTYPE HTML> <!-- This Source Code Form is subject to the terms of the Mozilla Public - License, v. 2.0. If a copy of the MPL was not distributed with this - file, You can obtain one at http://mozilla.org/MPL/2.0/. --> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=471722 --> <head> <title>Test for Bug 471722</title> <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> <script type="text/javascript" src="/tests/SimpleTest/EventUtils.js"></script> </head> <body onload="doTest();"> <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=471722">Mozilla Bug 471722</a> <p id="display"></p> <div id="content" style="display: none"> </div> <pre id="test"> <script type="application/javascript"> /** Test for Bug 471722 **/ SimpleTest.waitForExplicitFinish(); function doTest() { var t1 = $("t1"); var editor = null; if (t1 instanceof SpecialPowers.Ci.nsIDOMNSEditableElement) editor = SpecialPowers.wrap(t1).editor; ok(editor, "able to get editor for the element"); t1.focus(); t1.select(); try { // Cut the initial text in the textbox ok(editor.canCut(), "can cut text"); editor.cut(); is(t1.value, "", "initial text was removed"); // So now we will have emptied the textfield // and the editor will have created a bogus node // Check the transaction is in the undo stack... var t1Enabled = {}; var t1CanUndo = {}; editor.canUndo(t1Enabled, t1CanUndo); ok(t1CanUndo.value, "undo is enabled"); // Undo the cut editor.undo(1); is(t1.value, "minefield", "text reinserted"); // So now, the cut should be in the redo stack, // so executing the redo will clear the text once again // and reinsert the bogus node that was removed after undo. // This will require the editor to figure out that we have a // bogus node again... var t1CanRedo = {}; editor.canRedo(t1Enabled, t1CanRedo); ok(t1CanRedo.value, "redo is enabled"); editor.redo(1); // Did the editor notice a bogus node reappeared? is(t1.value, "", "editor found bogus node"); } catch (e) { ok(false, "test failed with error "+e); } SimpleTest.finish(); } </script> </pre> <input type="text" value="minefield" id="t1" /> </body> </html>