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