<!DOCTYPE html> <!-- webkit-test-runner [ useFlexibleViewport=true ] -->

<html>
<head>
    <meta name="viewport" content="initial-scale=1.0">
    <style>
        body {
            width: 1300px;
            height: 2000px;
        }
        
        .fixed {
            position: fixed;
            top: 10px;
            left: 12px;
            height: 100px;
            width: 100px;
            background-color: blue;
        }
    </style>
    <script>
        if (window.testRunner) {
            testRunner.waitUntilDone();
            testRunner.dumpAsText();
        }

        function getDragUIScript(startX, startY, endX, endY)
        {
            return `(function() {
                var movedFingerDownStream = {
                    events : [
                        {
                            inputType : "hand",
                            timeOffset : 0,
                            touches : [
                                {
                                    inputType : "finger",
                                    phase : "began",
                                    id : 1,
                                    x : ${startX},
                                    y : ${startY}
                                }
                            ]
                        },
                        {
                            interpolate : "linear",
                            timestep: 0.025,
                            startEvent : {
                                inputType : "hand",
                                timeOffset : 0,
                                touches : [
                                    {
                                        inputType : "finger",
                                        phase : "moved",
                                        id : 1,
                                        x : ${startX},
                                        y : ${startY}
                                    }
                                ]
                            },
                            endEvent : {
                                inputType : "hand",
                                timeOffset : 0.15,
                                touches : [
                                    {
                                        inputType : "finger",
                                        phase : "moved",
                                        id : 1,
                                        x : ${endX},
                                        y : ${endY}
                                    }
                                ]
                            }
                        }
                    ]
                };

                uiController.sendEventStream(JSON.stringify(movedFingerDownStream), function() {
                    uiController.doAfterVisibleContentRectUpdate(function () {
                        uiController.uiScriptComplete(JSON.stringify(uiController.contentVisibleRect));
                    });
                });
            })();`;
        }

        function getFingerUpUIScript(x, y)
        {
            return `(function() {
                uiController.liftUpAtPoint(${x}, ${y}, 1, function() {
                    uiController.uiScriptComplete('');
                });
            })();`;
        }

        function doTest()
        {
            if (!testRunner.runUIScript)
                return

            window.setTimeout(function() {
                var xPos = 100;
                var startY = 300;
                var endY = 100;
                // Send touch down and moves (keep the finger down).
                testRunner.runUIScript(getDragUIScript(xPos, startY, xPos, endY), function(visibleRectAfterScroll) {
                    var result = 'visibleRectAfterScroll: ' + visibleRectAfterScroll + '\n' + internals.layerTreeAsText(document);
                    document.getElementById('layers').textContent = result;
                    // Now send the final touch up.
                    testRunner.runUIScript(getFingerUpUIScript(xPos, endY), function() {
                        testRunner.notifyDone();
                    });
                });
            }, 0);
        }
        
        window.addEventListener('load', doTest, false);
    </script>
</head>
<body>
<div class="fixed"></div>
<pre id="layers"></pre>
</body>
</html>