it('should be able to delegate with custom event names', function () {
var source = new EventTarget();
var target = new EventTarget();
spyOn(source, 'on').andCallThrough();
spyOn(target, 'fire').andCallThrough();
Event.delegate(source, 'foo', target, 'bar');
source.fire('foo');
expect(target.fire).toHaveBeenCalled();
expect(target.fire.mostRecentCall.args[0]).toBe('bar');
});
it('should preserve all data if `preserveData` is specified when delegate custom event', function () {
var source = new EventTarget();
var target = new EventTarget();
spyOn(source, 'on').andCallThrough();
spyOn(target, 'fire').andCallThrough();
Event.delegate(source, 'foo', target, 'bar', { preserveData: true });
var event = { x: 1 };
source.fire('foo', event);
expect(target.fire).toHaveBeenCalled();
expect(target.fire.mostRecentCall.args[0]).toBe('bar');
expect(target.fire.mostRecentCall.args[1].x).toBe(1);
});
it('should delegate `type` from `source` to `target`', function () {
var source = new EventTarget();
var target = new EventTarget();
spyOn(source, 'on').andCallThrough();
spyOn(target, 'fire').andCallThrough();
Event.delegate(source, target, 'foo');
expect(source.on).toHaveBeenCalled();
expect(source.on.mostRecentCall.args[0]).toBe('foo');
source.fire('foo');
expect(target.fire).toHaveBeenCalled();
expect(target.fire.mostRecentCall.args[0]).toBe('foo');
});
it('should sync the state between 2 event objects `syncState` is specified when delegate custom event', function () {
var source = new EventTarget();
var target = new EventTarget();
spyOn(source, 'on').andCallThrough();
spyOn(target, 'fire').andCallThrough();
var handler = function (event) {
event.stopPropagation();
event.preventDefault();
event.stopImmediatePropagation();
};
target.on('bar', handler);
Event.delegate(source, 'foo', target, 'bar', { syncState: true });
var event = source.fire('foo', { x: 1 });
expect(target.fire).toHaveBeenCalled();
expect(target.fire.mostRecentCall.args[0]).toBe('bar');
expect(event.isPropagationStopped()).toBe(true);
expect(event.isDefaultPrevented()).toBe(true);
expect(event.isImmediatePropagationStopped()).toBe(true);
});