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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
<html>
<head>
<script src="../../fast/js/resources/js-test-pre.js"></script>
<script src="resources/js-test-selection-shared.js"></script>
</head>
<body>
<p id="description"></p>
<div id="console"></div>
<script>
description('For Bug 73511: Internals should have a method to return the max sequence number of spellcheck request.');

if (window.internals) {
    window.jsTestIsAsync = true;
    internals.settings.setAsynchronousSpellCheckingEnabled(true);
}

var testRoot = document.createElement("div");
document.body.insertBefore(testRoot, document.body.firstChild);

var source = document.createElement("div");
source.innerHTML = "foo bar";
testRoot.appendChild(source);

function createInput(testRoot) {
    var e = document.createElement('input');
    e.setAttribute("type", "text");
    testRoot.appendChild(e);

    return e;
}

function createTextArea(testRoot) {
    var e = document.createElement("textarea");
    testRoot.appendChild(e);

    return e;
}

function createContentEditable(testRoot) {
    var e = document.createElement("div");
    e.setAttribute("contentEditable", "true");
    testRoot.appendChild(e);

    return e;
}

var destinations = [
    createInput(testRoot),
    createTextArea(testRoot),
    createContentEditable(testRoot),
];

var sel = window.getSelection();

var tests = [];
for (var i = 0; i < destinations.length; ++i) {
    var t = function(i) {
        return function() {
            if (!window.internals)
                 return;
            var sequence = internals.lastSpellCheckRequestSequence(document);
            var processed = internals.lastSpellCheckProcessedSequence(document);
            copyAndPaste(source, destinations[i]);
            verify(sequence, processed);
        }
    }(i);
    tests.push(t);
}

function verifyIfAny()
{
    var next = tests.shift();
    if (next) {
        next();
        return;
    }

    testRoot.style.display = "none";
    finishJSTest();
}

function copyAndPaste(source, dest)
{
    sel.selectAllChildren(source);
    document.execCommand("Copy");

    if (dest instanceof HTMLInputElement || dest instanceof HTMLTextAreaElement) {
        dest.value = "";
        dest.focus();
    } else {
        dest.innerHTML = "";
        sel.selectAllChildren(dest);
    }
    document.execCommand("Paste");
}

function verify(sequence, processed)
{
    var nretry = 10;
    var nsleep = 1;
    function trial() {
        var newSequence = internals.lastSpellCheckRequestSequence(document);
        var newProcessed = internals.lastSpellCheckProcessedSequence(document);

        var verified = newSequence >= sequence && newProcessed >= processed && newSequence == newProcessed;
        if (verified) {
            testPassed("SpellCheck sequence seems working correctly.");
            verifyIfAny();
            return;
        }

        nretry--;
        if (0 == nretry) {
            testFailed("SpellCheck sequence didn't increase.");
            verifyIfAny();
            return;
        }

        nsleep *= 2;
        window.setTimeout(trial, nsleep);
    };
    trial();
}

verifyIfAny();

var successfullyParsed = true;

</script>
<script src="../../fast/js/resources/js-test-post.js"></script>
</body>
</html>