gecko/toolkit/devtools/tern/signal.js

27 lines
951 B
JavaScript

(function(mod) {
if (typeof exports == "object" && typeof module == "object") // CommonJS
return mod(exports);
if (typeof define == "function" && define.amd) // AMD
return define(["exports"], mod);
mod((self.tern || (self.tern = {})).signal = {}); // Plain browser env
})(function(exports) {
function on(type, f) {
var handlers = this._handlers || (this._handlers = Object.create(null));
(handlers[type] || (handlers[type] = [])).push(f);
}
function off(type, f) {
var arr = this._handlers && this._handlers[type];
if (arr) for (var i = 0; i < arr.length; ++i)
if (arr[i] == f) { arr.splice(i, 1); break; }
}
function signal(type, a1, a2, a3, a4) {
var arr = this._handlers && this._handlers[type];
if (arr) for (var i = 0; i < arr.length; ++i) arr[i].call(this, a1, a2, a3, a4);
}
exports.mixin = function(obj) {
obj.on = on; obj.off = off; obj.signal = signal;
return obj;
};
});