<!doctype html>
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<!-- Modified from rbyers.github.io/eventTest.js
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Changes were to remove some elements which don't make sense in this context,
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including UI to toggle events and various non-mouse, keyboard, touch events.
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There were also some formatting changes. Finally, some test-friendly functions
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like clearPreviousEvents() were added.
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Add event handlers for all mouse, touch, and keyboard events. Log any events
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seen. Intended to be queried by an autotest after input playback.
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-->
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<title>Touch Event Test Page</title>
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<script type="text/javascript">
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var pageReady = false; // Used to determine whether test can run yet.
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var lastEvent; // The last event seen.
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var eventCount = 0; // Count of events seen.
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var timeOfLastEvent; // Timestamp of when last event occurred.
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var netScrollDelta = {x: 0, y: 0}; // Net scroll seen.
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var clickCount = 0; // Total number of clicks seen.
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var eventLog = ''; // Log of all events seen.
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var preventDefaults = true; // Boolean whether to prevent default events.
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// Reset previously seen events.
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function clearPreviousEvents() {
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lastEvent = undefined;
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eventCount = 0;
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timeOfLastEvent = undefined;
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netScrollDelta = {x: 0, y: 0};
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clickCount = 0;
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eventLog = '';
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pageReady = true;
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}
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// Add the given event and message to the running eventLog.
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function logEvent(event, msg) {
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eventCount += 1;
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if (!msg) {
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msg = '';
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}
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if (timeOfLastEvent && event.timeStamp) {
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msg += ' timeDelta=' + round(event.timeStamp - timeOfLastEvent) + 'ms';
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}
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timeOfLastEvent = event.timeStamp;
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lastEvent = event;
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msg = event.type + ': ' + msg + '\n';
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eventLog += msg;
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console.log(msg);
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}
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// Call preventDefault() on the event if preventDefaults is set.
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function preventDefault(event) {
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if (preventDefaults) {
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event.preventDefault();
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}
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}
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// Round the given value to 2 decimal places.
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function round(val) {
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return Math.round(val * 100) / 100;
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}
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// addEventListener with the given handler for the given event types.
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function setHandlerState(events, handler) {
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for (var i = 0; i < events.length; i++) {
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document.addEventListener(events[i], handler);
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}
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};
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// mouse event handler
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function mouseEventHandler(event)
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{
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var msg = '';
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if (event.type == 'click') {
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clickCount += 1;
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}
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if (event.type == 'mousewheel') {
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msg += ', wheelDelta=' + round(event.wheelDelta) +
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' (' + round(event.wheelDeltaX) + ',' +
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round(event.wheelDeltaY) + ')';
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netScrollDelta.x += event.wheelDeltaX;
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netScrollDelta.y += event.wheelDeltaY;
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}
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if (event.type == 'wheel') {
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msg += ', deltaX=' + round(event.deltaX) + ', deltaY=' +
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round(event.deltaY) + ', deltaZ=' + round(event.deltaZ);
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netScrollDelta.x += event.deltaX;
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netScrollDelta.y += event.deltaY;
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}
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if (event.type == 'mousewheel' || event.type == 'wheel') {
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msg += ', deltaMode=' + (
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event.deltaMode == 0 ? 'PIXEL' :
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event.deltaMode == 1 ? 'LINE' :
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event.deltaMode == 2 ? 'PAGE' :
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event.deltaMode);
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}
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if (event.type.toLowerCase().indexOf('pointer') != -1) {
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msg += ', pointerType=' + event.pointerType + ', pointerId=' +
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event.pointerId + ', width=' + round(event.width) +
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', height=' + round(event.height) + ', pressure=' +
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round(event.pressure) + ', tiltX=' + round(event.tiltX) +
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', tiltY=' + round(event.tiltY);
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}
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msg = ' client=' + round(event.clientX) + ',' + round(event.clientY) +
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' screen=' + round(event.screenX) + ',' + round(event.screenY) +
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' button=' + event.button + ' buttons=' + event.buttons +
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' detail=' + event.detail + ' cancelable=' +
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event.cancelable + msg;
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preventDefault(event);
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logEvent(event, msg);
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}
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// Helper function for touch handler.
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function makeTouchList(touches, verbose) {
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var touchStr = '';
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for (var i = 0; i < touches.length; i++) {
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var tgt = '';
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if (i > 0)
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touchStr += ' ';
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if (verbose)
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tgt = '-' + touches[i].target.id;
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var id = touches[i].identifier;
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if (id >= 100) {
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if (!(id in touchMap)) {
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touchMap[id] = nextId;
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nextId++;
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}
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id = '#' + touchMap[id];
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}
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touchStr += id + tgt;
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}
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return touchStr;
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}
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activeTouchData = {};
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// Touch event handler.
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function touchEventHandler(event) {
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var touchStr =
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' touches=' + makeTouchList(event.touches, true) +
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' changed=' + makeTouchList(event.changedTouches) +
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' target=' + makeTouchList(event.targetTouches) +
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' cancelable=' + event.cancelable;
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preventDefault(event);
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logEvent(event, touchStr);
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for (var i = 0; i < event.changedTouches.length; i++) {
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var touch = event.changedTouches[i];
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if (event.type == 'touchstart') {
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var touchData = {
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startTime: event.timeStamp,
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startX: touch.screenX,
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startY: touch.screenY,
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maxDist: 0,
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maxMDist: 0
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};
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activeTouchData[touch.identifier] = touchData;
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} else {
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var touchData = activeTouchData[touch.identifier];
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var distX = Math.abs(touch.screenX - touchData.startX);
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var distY = Math.abs(touch.screenY - touchData.startY);
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touchData.maxDist = Math.max(touchData.maxDist,
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Math.sqrt(distX * distX + distY * distY));
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touchData.maxMDist = Math.max(touchData.maxMDist, distX + distY);
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if (event.type == 'touchend') {
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msg = ('touch ' + touch.identifier + ' summary:' +
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' dist=(' + distX + ',' + distY + ')' +
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' max-dist=' + Math.round(touchData.maxDist) +
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' max-manhattan-dist=' + touchData.maxMDist +
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' dur=' + (Math.round(event.timeStamp - touchData.startTime)));
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logEvent(event, msg);
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delete activeTouchData[touch.identifier];
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}
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}
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}
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}
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// Key event handler.
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function keyEventHandler(event) {
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var msg = '';
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if ('charCode' in event)
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msg += ' charCode=' + event.charCode;
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if ('keyCode' in event)
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msg += ' keyCode=' + event.keyCode;
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if ('key' in event)
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msg += ' key=' + event.key;
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if ('code' in event)
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msg += ' code=' + event.code;
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if ('location' in event) {
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if (event.location == KeyboardEvent.DOM_KEY_LOCATION_LEFT)
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msg += ' LOCATION_LEFT';
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else if (event.location == KeyboardEvent.DOM_KEY_LOCATION_NUMPAD)
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msg += ' LOCATION_NUMPAD';
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else if (event.location == KeyboardEvent.DOM_KEY_LOCATION_RIGHT)
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msg += ' LOCATION_RIGHT';
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}
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if (event.repeat)
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msg += ' repeat';
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if (event.isComposing)
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msg += ' isComposing';
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preventDefault(event);
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logEvent(event, msg);
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}
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// On load, set handlers for mouse, touch, and key events.
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function onLoad() {
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setHandlerState(
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['click', 'dblclick', 'contextmenu', 'mousedown', 'mouseup',
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'mouseover', 'mousemove', 'mouseout', 'mouseenter', 'mouseleave',
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'mousewheel', 'wheel'],
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mouseEventHandler);
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setHandlerState(
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['dragstart', 'dragenter', 'dragleave', 'drop', 'dragend'],
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mouseEventHandler);
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setHandlerState(
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['touchstart', 'touchmove', 'touchend', 'touchcancel'],
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touchEventHandler);
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setHandlerState(
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['keydown', 'keyup', 'keypress'],
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keyEventHandler);
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pageReady = true;
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}
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</script>
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</head>
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<body onload="onLoad()">
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</body>
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</html>
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