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/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
function test() {
testEmitter();
testEmitter({});
}
function testEmitter(aObject) {
Cu.import("resource:///modules/devtools/shared/event-emitter.js", this);
let emitter;
if (aObject) {
emitter = aObject;
EventEmitter.decorate(emitter);
} else {
emitter = new EventEmitter();
}
ok(emitter, "We have an event emitter");
emitter.on("next", next);
emitter.emit("next", "abc", "def");
let beenHere1 = false;
function next(eventName, str1, str2) {
is(eventName, "next", "Got event");
is(str1, "abc", "Argument 1 is correct");
is(str2, "def", "Argument 2 is correct");
ok(!beenHere1, "first time in next callback");
beenHere1 = true;
emitter.off("next", next);
emitter.emit("next");
emitter.once("onlyonce", onlyOnce);
emitter.emit("onlyonce");
emitter.emit("onlyonce");
}
let beenHere2 = false;
function onlyOnce() {
ok(!beenHere2, "\"once\" listner has been called once");
beenHere2 = true;
emitter.emit("onlyonce");
killItWhileEmitting();
}
function killItWhileEmitting() {
function c1() {
ok(true, "c1 called");
}
function c2() {
ok(true, "c2 called");
emitter.off("tick", c3);
}
function c3() {
ok(false, "c3 should not be called");
}
function c4() {
ok(true, "c4 called");
}
emitter.on("tick", c1);
emitter.on("tick", c2);
emitter.on("tick", c3);
emitter.on("tick", c4);
emitter.emit("tick");
delete emitter;
finish();
}
}
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