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<html>
<head>
<script src="../OLLoader.js"></script>
<script type="text/javascript">
function test_constructor(t) {
t.plan(3);
var control = new OpenLayers.Control();
control.id = Math.random();
var callbacks = {foo: "bar"};
var options = {bar: "foo"};
var oldInit = OpenLayers.Handler.prototype.initialize;
OpenLayers.Handler.prototype.initialize = function(con, call, opt) {
t.eq(con.id, control.id,
"constructor calls parent with the correct control");
t.eq(call, callbacks,
"constructor calls parent with the correct callbacks");
t.eq(opt, options,
"constructor calls parent with the correct options");
};
var handler = new OpenLayers.Handler.Pinch(control, callbacks, options);
OpenLayers.Handler.prototype.initialize = oldInit;
}
function test_activate(t) {
t.plan(3);
var map = new OpenLayers.Map('map');
var control = new OpenLayers.Control();
map.addControl(control);
var handler = new OpenLayers.Handler.Pinch(control);
handler.active = true;
var activated = handler.activate();
t.ok(!activated,
"activate returns false if the handler was already active");
handler.active = false;
handler.pinching = true;
activated = handler.activate();
t.ok(activated,
"activate returns true if the handler was not already active");
t.ok(!handler.pinching,
"activate sets pinching to false");
}
function test_events(t) {
// each handled event should be activated twice when handler is
// activated, so:
// 27 = 4tests * 2*3events + 1tests * 3events
t.plan(27);
var map = new OpenLayers.Map('map');
var control = new OpenLayers.Control();
map.addControl(control);
var handler = new OpenLayers.Handler.Pinch(control);
// list below events that should be handled (events) and those
// that should not be handled (nonevents) by the handler
var events = ["touchend", "touchmove", "touchstart"];
var nonevents = ["mousedown", "mouseup", "mousemove", "mouseout",
"click", "dblclick", "resize", "focus", "blur"];
map.events.registerPriority = function(type, obj, func) {
// this is one of the mock handler methods
t.eq(OpenLayers.Util.indexOf(nonevents, type), -1,
"registered method is not one of the events " +
"that should not be handled: " + type);
t.ok(OpenLayers.Util.indexOf(events, type) > -1,
"activate calls registerPriority with browser event: " + type);
t.eq(typeof func, "function",
"activate calls registerPriority with a function");
t.eq(obj["CLASS_NAME"], "OpenLayers.Handler.Pinch",
"activate calls registerPriority with the handler");
};
handler.activate();
handler.deactivate();
// set browser event like properties on the handler
for(var i=0; i<events.length; ++i) {
setMethod(events[i]);
}
function setMethod(key) {
handler[key] = function() {return key;};
}
map.events.registerPriority = function(type, obj, func) {
var r = func();
if(typeof r == "string") {
t.eq(r, type,
"activate calls registerPriority with the correct method");
}
}
handler.activate();
}
function test_callbacks(t) {
t.plan(32);
var map = new OpenLayers.Map('map', {controls: [], fallThrough: true});
var control = new OpenLayers.Control();
map.addControl(control);
// set fake values for touches
var testEvents = {
start: {
type: 'touchstart',
touches: [{
clientX: 100,
clientY: 0
}, {
clientX: 0,
clientY: 0
}]
},
move: {
type: 'touchmove',
touches: [{
clientX: 100,
clientY: 0
}, {
clientX: 20,
clientY: 0
}]
},
done: {
type: 'touchend',
touches: []
}
};
// set callback methods
var customCb = OpenLayers.Function.False;
var cb = function(evt) {
var callback = evt.type.replace("touch", "").replace("end", "done");;
var tch = testEvents[callback].touches;
t.ok(evt.touches[0].clientX == tch[0].clientX &&
evt.touches[0].clientY == tch[0].clientY,
"touchstart sets first touch position correctly in evt");
t.ok(evt.touches[1].clientX == tch[1].clientX &&
evt.touches[1].clientY == tch[1].clientY,
"touchstart sets second touch position correctly in evt");
t.eq(handler.start.distance, 100, "start distance is " +
"always the same");
customCb.apply(this, arguments);
}
var callbacks = {
start: cb,
move: cb,
done: function () {
customCb.apply(this, arguments);
}
};
var handler = new OpenLayers.Handler.Pinch(control, callbacks);
handler.activate();
var old_isMultiTouch = OpenLayers.Event.isMultiTouch;
var old_stop = OpenLayers.Event.stop;
// test single touch
OpenLayers.Event.isMultiTouch = function() {
return false;
}
// no callbacks with tests expected (pinch not started)
map.events.handleBrowserEvent(testEvents.start);
// test 1, 2, 3
t.ok(!handler.started, "1) touchstart (singletouch) sets started to false");
t.eq(handler.start, null, "1) touchstart (singletouch) sets start to null");
t.eq(handler.last, null, "1) touchstart (singletouch) sets last to null");
handler.started = true;
handler.start = {
distance: 100,
delta: 0,
scale: 1
};
handler.last = {
distance: 150,
delta: 10,
scale: 1.5
};
// no callbacks with tests expected (multitouch pinch started, so ignores singletouch)
map.events.handleBrowserEvent(testEvents.start);
// test 4, 5, 6
t.ok(handler.started, "1) touchstart (singletouch) after pinch started is ignored");
t.ok(!!handler.start, "1) touchstart (singletouch) after pinch started is ignored");
t.ok(!!handler.last, "1) touchstart (singletouch) after pinch started is ignored");
OpenLayers.Event.stop = function(evt, allowDefault) {
if(allowDefault) {
t.fail(
"touchstart is prevented from falling to other elements");
}
}
OpenLayers.Event.isMultiTouch = function(evt) {
var res = old_isMultiTouch(evt);
t.ok(res, "fake event is a mutitouch touch event");
return res;
}
customCb = function(evt, pinchdata) {
t.eq(pinchdata.distance, 100, "2) calculated distance is correct");
t.eq(pinchdata.delta, 0, "2) calculated delta is correct");
t.eq(pinchdata.scale, 1, "2) calculated scale is correct");
}
// test 7, 8, 9, 10, 11, 12, 13
map.events.handleBrowserEvent(testEvents.start);
// test 14, 15
t.ok(handler.started, "2) touchstart sets the started flag to true");
t.ok(!handler.pinching, "2) touchstart sets the pinching flag to false");
customCb = function(evt, pinchdata) {
t.eq(pinchdata.distance, 80, "3) calculated distance is correct");
t.eq(pinchdata.delta, 20, "3) calculated delta is correct");
t.eq(pinchdata.scale, 0.8, "3) calculated scale is correct");
}
// test 16, 17, 18, 19, 20, 21, 22
map.events.handleBrowserEvent(testEvents.move);
// test 23, 24
t.ok(handler.started, "3) started flag still set to true");
t.ok(handler.pinching, "3) touchmove sets the pinching flag to true");
OpenLayers.Event.isMultiTouch = old_isMultiTouch;
customCb = function(evt, first, last) {
t.eq(first.distance, 100, "4) calculated distance is correct");
t.eq(first.delta, 0, "4) calculated delta is correct");
t.eq(first.scale, 1, "4) calculated scale is correct");
t.eq(last.distance, 80, "4) calculated distance is correct");
t.eq(last.delta, 20, "4) calculated delta is correct");
t.eq(last.scale, 0.8, "4) calculated scale is correct");
}
// test 25, 26, 27, 28, 29, 30
map.events.handleBrowserEvent(testEvents.done);
// test 31, 32
t.ok(!handler.started, "4) started flag is set to false");
t.ok(!handler.pinching, "4) touchdone sets the pinching flag to false");
OpenLayers.Event.stop = old_stop;
// test move or done before start
customCb = function(evt) {
t.fail("should not pass here")
}
// no callbacks with tests expected
map.events.handleBrowserEvent(testEvents.move);
map.events.handleBrowserEvent(testEvents.done);
}
function test_deactivate(t) {
t.plan(6);
var map = new OpenLayers.Map('map');
var control = new OpenLayers.Control();
map.addControl(control);
var handler = new OpenLayers.Handler.Pinch(control);
handler.active = false;
var deactivated = handler.deactivate();
t.ok(!deactivated,
"deactivate returns false if the handler was not already active");
handler.active = true;
handler.pinching = true;
deactivated = handler.deactivate();
t.ok(deactivated,
"deactivate returns true if the handler was active already");
t.ok(!handler.started,
"deactivate sets started to false");
t.ok(!handler.pinching,
"deactivate sets pinching to false");
t.ok(handler.start == null,
"deactivate sets start to null");
t.ok(handler.last == null,
"deactivate sets start to null");
}
</script>
</head>
<body>
<div id="map" style="width: 300px; height: 150px;"/>
</body>
</html>
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