<!DOCTYPE html>

<html>
<head>
    <script src="../../resources/js-test-pre.js"></script>
    <style>
        body {
            height: 2000px;
            width: 2000px;
        }
    </style>
    <script>
        description("This test scrolls the page and checks that the layout and visual viewports respond as expected.");

        if (window.internals) {
            internals.settings.setVisualViewportEnabled(true);
            internals.settings.setAllowUnclampedScrollPosition(true);
        }

        window.jsTestIsAsync = true;

        var visualViewport;
        function doTest()
        {
            // Zooming may scroll the view away from the origin.
            window.scrollTo(-123, -234);
            visualViewport = internals.visualViewportRect();
            layoutViewport = internals.layoutViewportRect();
            debug('Scrolled to ' + window.scrollX + ', ' + window.scrollY);

            // Don't use shouldBeEqualToString() to avoid showing failures when correct output differs between platforms.
            evalAndLogResult("JSON.stringify(layoutViewport)");
            evalAndLogResult("JSON.stringify(visualViewport)");

            debug('');
            window.scrollTo(475, 525);
            visualViewport = internals.visualViewportRect();
            layoutViewport = internals.layoutViewportRect();
            debug('Scrolled to ' + window.scrollX + ', ' + window.scrollY);

            evalAndLogResult("JSON.stringify(layoutViewport)");
            evalAndLogResult("JSON.stringify(visualViewport)");

            debug('');
            window.scrollTo(1800, 1850);
            visualViewport = internals.visualViewportRect();
            layoutViewport = internals.layoutViewportRect();
            debug('Scrolled to ' + window.scrollX + ', ' + window.scrollY);

            evalAndLogResult("JSON.stringify(layoutViewport)");
            evalAndLogResult("JSON.stringify(visualViewport)");

            window.scrollTo(0, 0);

            finishJSTest();
        }
        
        window.addEventListener('load', doTest, false);
    </script>
</head>
<body>
    <script src="../../resources/js-test-post.js"></script>
</body>
</html>