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describe('DomEvent', function() {
var el;
function simulateClick(el) {
if (document.createEvent) {
var e = document.createEvent('MouseEvents');
e.initMouseEvent('click', true, true, window,
0, 0, 0, 0, 0, false, false, false, false, 0, null);
return el.dispatchEvent(e);
} else if (el.fireEvent) {
return el.fireEvent('onclick');
}
}
beforeEach(function() {
el = document.createElement('div');
el.style.position = 'absolute';
el.style.top = el.style.left = '-10000px';
document.body.appendChild(el);
});
afterEach(function() {
document.body.removeChild(el);
});
describe('#addListener', function() {
it('should add a listener and call it on event', function() {
var listener1 = jasmine.createSpy('listener1'),
listener2 = jasmine.createSpy('listener2');
L.DomEvent.addListener(el, 'click', listener1);
L.DomEvent.addListener(el, 'click', listener2);
simulateClick(el);
expect(listener1).toHaveBeenCalled();
expect(listener2).toHaveBeenCalled();
});
it('should have "this" keyword point to the given context', function() {
var obj = {foo: 'bar'},
result;
L.DomEvent.addListener(el, 'click', function() {
result = this;
}, obj);
simulateClick(el);
expect(result).toEqual(obj);
});
it('should pass an event object to the listener', function() {
var type;
L.DomEvent.addListener(el, 'click', function(e) {
type = e && e.type;
});
simulateClick(el);
expect(type).toEqual('click');
});
});
describe('#removeListener', function() {
it('should remove prevously added listener', function() {
var listener = jasmine.createSpy('listener');
L.DomEvent.addListener(el, 'click', listener);
L.DomEvent.removeListener(el, 'click', listener);
simulateClick(el);
expect(listener).not.toHaveBeenCalled();
});
});
describe('#stopPropagation', function() {
it('should stop propagation of the given event', function() {
var child = document.createElement('div'),
listener = jasmine.createSpy('listener');
el.appendChild(child);
L.DomEvent.addListener(child, 'click', L.DomEvent.stopPropagation);
L.DomEvent.addListener(el, 'click', listener);
simulateClick(child);
expect(listener).not.toHaveBeenCalled();
el.removeChild(child);
});
});
describe('#preventDefault', function() {
it('should prevent the default action of event', function() {
L.DomEvent.addListener(el, 'click', L.DomEvent.preventDefault);
expect(simulateClick(el)).toBe(false);
});
});
});
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