31 lines
715 B
JavaScript
31 lines
715 B
JavaScript
var Promise = require('pinkie-promise');
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module.exports = function (emitter, event) {
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var listener = null;
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var promise = new Promise(function (resolve, reject) {
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listener = function () {
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var args = null;
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if (arguments.length === 1)
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args = arguments[0];
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else {
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args = [];
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for (var i = 0; i < arguments.length; i++)
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args.push(arguments[i]);
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}
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event === 'error' ? reject(args) : resolve(args);
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};
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emitter.once(event, listener);
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});
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promise.cancel = function () {
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emitter.removeListener(event, listener);
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};
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return promise;
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};
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