suite.test('off (all named)', function () {
const dispatcher = new EventDispatcher();
let data = '';
const listenerA = function () {
data += 'a';
};
const listenerB = function () {
data += 'b';
};
const listenerC = function () {
data += 'c';
};
dispatcher.on('click', listenerA);
dispatcher.on('click', listenerB);
dispatcher.on('keydown', listenerC);
dispatcher.off('click');
data = '';
dispatcher.fire('click');
dispatcher.fire('keydown');
LegacyUnit.equal(data, 'c');
});
suite.test('fire (no event listeners)', function () {
const dispatcher = new EventDispatcher();
let args;
args = dispatcher.fire('click', { test: 1 });
LegacyUnit.equal(args.test, 1);
LegacyUnit.equal(args.isDefaultPrevented(), false);
LegacyUnit.equal(args.isPropagationStopped(), false);
LegacyUnit.equal(args.isImmediatePropagationStopped(), false);
LegacyUnit.equal(args.target, dispatcher);
args = dispatcher.fire('click');
LegacyUnit.equal(args.isDefaultPrevented(), false);
LegacyUnit.equal(args.isPropagationStopped(), false);
LegacyUnit.equal(args.isImmediatePropagationStopped(), false);
});
suite.test('on', function () {
const dispatcher = new EventDispatcher();
let data = '';
LegacyUnit.equal(dispatcher.on('click', function () {
data += 'a';
}), dispatcher);
LegacyUnit.equal(dispatcher.on('click keydown', function () {
data += 'b';
}), dispatcher);
dispatcher.fire('click');
LegacyUnit.equal(data, 'ab');
dispatcher.fire('keydown');
LegacyUnit.equal(data, 'abb');
});
suite.test('once (prepend)', function () {
const dispatcher = new EventDispatcher();
let data = '';
LegacyUnit.equal(dispatcher.on('click', function () {
data += 'a';
}), dispatcher);
LegacyUnit.equal(dispatcher.once('click', function () {
data += 'b';
}, true), dispatcher);
LegacyUnit.equal(dispatcher.on('click', function () {
data += 'c';
}), dispatcher);
dispatcher.fire('click');
LegacyUnit.equal(data, 'bac');
dispatcher.fire('click');
LegacyUnit.equal(data, 'bacac');
});
suite.test('beforeFire setting', function () {
let lastArgs, dispatcher, args;
dispatcher = new EventDispatcher({
beforeFire (args) {
lastArgs = args;
}
});
args = dispatcher.fire('click');
LegacyUnit.equal(lastArgs === args, true);
});
suite.test('fire (event listeners) stopImmediatePropagation', function () {
const dispatcher = new EventDispatcher();
let data = '';
dispatcher.on('click', function (e) {
data += 'a'; e.stopImmediatePropagation();
});
dispatcher.on('click', function () {
data += 'b';
});
dispatcher.fire('click', { test: 1 });
LegacyUnit.equal(data, 'a');
});
suite.test('fire (event listeners)', function () {
const dispatcher = new EventDispatcher();
let data = '';
dispatcher.on('click', function () {
data += 'a';
});
dispatcher.on('click', function () {
data += 'b';
});
dispatcher.fire('click', { test: 1 });
LegacyUnit.equal(data, 'ab');
});
suite.test('once (unbind)', function () {
const dispatcher = new EventDispatcher();
let data = '';
const handler = function () {
data += 'b';
};
dispatcher.once('click', function () {
data += 'a';
});
dispatcher.once('click', handler);
dispatcher.off('click', handler);
dispatcher.fire('click');
LegacyUnit.equal(data, 'a');
});
suite.test('beforeFire setting (stopImmediatePropagation)', function () {
let lastArgs, dispatcher, args, data = '';
dispatcher = new EventDispatcher({
beforeFire (args) {
lastArgs = args;
args.stopImmediatePropagation();
}
});
const listenerA = function () {
data += 'a';
};
dispatcher.on('click', listenerA);
args = dispatcher.fire('click');
LegacyUnit.equal(lastArgs === args, true);
LegacyUnit.equal(data, '');
});
suite.test('off (all specific observer)', function () {
const dispatcher = new EventDispatcher();
let data = '';
const listenerA = function () {
data += 'a';
};
const listenerB = function () {
data += 'b';
};
dispatcher.on('click', listenerA);
dispatcher.on('click', listenerB);
dispatcher.off('click', listenerB);
data = '';
dispatcher.fire('click');
LegacyUnit.equal(data, 'a');
});