touchadjustment/zoom-basic.html

<html>
<head>
    <script src="../fast/js/resources/js-test-pre.js"></script>
    <style>
        #div0 { position: absolute; left: 50px; top: 50px; width: 300px; height: 300px; box-sizing: border-box; }
        #div1 { position: absolute; left: 50px; top: 50px; width: 200px; height: 100px; box-sizing: border-box; }
        #div2 { position: absolute; left: 50px; top: 150px; width: 200px; height: 100px; padding: 10px; box-sizing: border-box; }
    </style>
</head>
<body onload="runTests()">

<div id=div0>
    <div id=div1></div>
    <div id=div2></div>
</div>

<p id='description'></p>
<div id='console'></div>

<script>
    function testRoundTouch(x, y, radius)
    {
        var x = x - radius;
        var y = y - radius;
        var width = radius * 2;
        var height = radius * 2;
        var zoomableRect = internals.bestZoomableAreaForTouchPoint(x, y, width, height, document);
        return zoomableRect;
    }

    function testDirectTouches()
    {
        zoomableArea = testRoundTouch(130, 130, 10);
        shouldEvaluateTo('zoomableArea.top', 100);
        shouldEvaluateTo('zoomableArea.left', 100);
        shouldEvaluateTo('zoomableArea.width', 200);
        shouldEvaluateTo('zoomableArea.height', 100);

        zoomableArea = testRoundTouch(130, 230, 10);
        shouldEvaluateTo('zoomableArea.top', 210);
        shouldEvaluateTo('zoomableArea.left', 110);
        shouldEvaluateTo('zoomableArea.width', 180);
        shouldEvaluateTo('zoomableArea.height', 80);

        zoomableArea = testRoundTouch(120, 220, 20);
        shouldEvaluateTo('zoomableArea.top', 200);
        shouldEvaluateTo('zoomableArea.left', 100);
        shouldEvaluateTo('zoomableArea.width', 200);
        shouldEvaluateTo('zoomableArea.height', 100);

        zoomableArea = testRoundTouch(80, 100, 20);
        shouldEvaluateTo('zoomableArea.top', 50);
        shouldEvaluateTo('zoomableArea.left', 50);
        shouldEvaluateTo('zoomableArea.width', 300);
        shouldEvaluateTo('zoomableArea.height',300);
    }

    function runTests()
    {
        if (window.testRunner && window.internals && internals.bestZoomableAreaForTouchPoint) {
            description('Test basic cases of tap-to-zoom mechanics.');
            testRunner.dumpAsText();
            testRunner.waitUntilDone();
            testDirectTouches();
            isSuccessfullyParsed();
            testRunner.notifyDone();
        }
    }
</script>
</body>
</html>