test_bug773262.html

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<!doctype html>

<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=773262

-->

<title>Test for Bug 773262</title>

<script src="/tests/SimpleTest/SimpleTest.js"></script>

<link rel="stylesheet" href="/tests/SimpleTest/test.css">

<p><a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=773262">Mozilla Bug 773262</a></p>

<iframe></iframe>

<script>

function runTest(doc, desc) {

  is(doc.queryCommandEnabled("undo"), false,

     desc + ": Undo shouldn't be enabled yet");

  is(doc.queryCommandEnabled("redo"), false,

     desc + ": Redo shouldn't be enabled yet");

  is(doc.body.innerHTML, "<p>Hello</p>", desc + ": Wrong initial innerHTML");

  doc.getSelection().selectAllChildren(doc.body.firstChild);

  doc.execCommand("bold");

  is(doc.queryCommandEnabled("undo"), true,

     desc + ": Undo should be enabled after bold");

  is(doc.queryCommandEnabled("redo"), false,

     desc + ": Redo still shouldn't be enabled");

  is(doc.body.innerHTML, "<p><b>Hello</b></p>",

     desc + ": Wrong innerHTML after bold");

  doc.execCommand("undo");

  is(doc.queryCommandEnabled("undo"), false,

     desc + ": Undo should be disabled again");

  is(doc.queryCommandEnabled("redo"), true,

     desc + ": Redo should be enabled now");

  is(doc.body.innerHTML, "<p>Hello</p>",

     desc + ": Wrong innerHTML after undo");

  doc.execCommand("redo");

  is(doc.queryCommandEnabled("undo"), true,

     desc + ": Undo should be enabled after redo");

  is(doc.queryCommandEnabled("redo"), false,

     desc + ": Redo should be disabled again");

  is(doc.body.innerHTML, "<p><b>Hello</b></p>",

     desc + ": Wrong innerHTML after redo");

SimpleTest.waitForExplicitFinish();

addLoadEvent(function() {

  var doc = document.querySelector("iframe").contentDocument;

  // First turn on designMode and run the test like that, as a sanity check.

  doc.body.innerHTML = "<p>Hello</p>";

  doc.designMode = "on";

  runTest(doc, "1");

  // Now to test the actual bug: repeat all the above, but with designMode

  // toggled.  This should clear the undo history, so everything should be

  // exactly as before.

  doc.designMode = "off";

  doc.body.innerHTML = "<p>Hello</p>";

  doc.designMode = "on";

  runTest(doc, "2");

  SimpleTest.finish();

});

</script>