| 1 | /*!
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| 2 | * hookable
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| 3 | * Copyright(c) 2012 RGBboy <me@rgbboy.com>
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| 4 | * MIT Licensed
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| 5 | */
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| 6 |
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| 7 | /**
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| 8 | * Module Dependencies
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| 9 | */
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| 10 |
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| 11 |
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| 12 |
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| 13 | /**
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| 14 | * Add hookable functionality to component instance.
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| 15 | *
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| 16 | * @param {Object} that
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| 17 | * @api public
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| 18 | */
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| 19 | exports = module.exports = function (that) {
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| 20 |
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| 21 | var beforeHooks = {},
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| 22 | afterHooks = {};
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| 23 |
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| 24 | /**
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| 25 | * .hook
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| 26 | *
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| 27 | * @todo: make this work async with callback
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| 28 | *
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| 29 | * @param {String} name
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| 30 | * @param {Function} function
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| 31 | * @return {Function}
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| 32 | * @api public
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| 33 | */
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| 34 | that.hook = function (name, fn) {
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| 35 | return function () {
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| 36 | var args = [].slice.call(arguments),
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| 37 | context = this,
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| 38 | i;
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| 39 | // before
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| 40 | if (beforeHooks[name] && beforeHooks[name].length > 0) {
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| 41 | for (i = 0; i < beforeHooks[name].length; i += 1) {
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| 42 | beforeHooks[name][i].apply(context, args); // make this work serial async
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| 43 | };
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| 44 | };
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| 45 | // original
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| 46 | fn.apply(context, args);
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| 47 | // after
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| 48 | if (afterHooks[name] && afterHooks[name].length > 0) {
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| 49 | for (i = 0; i < afterHooks[name].length; i += 1) {
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| 50 | afterHooks[name][i].apply(context, args); // make this work serial async
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| 51 | };
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| 52 | };
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| 53 | };
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| 54 | };
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| 55 |
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| 56 | /**
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| 57 | * .before
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| 58 | *
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| 59 | * @param {String} name
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| 60 | * @param {Function} function
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| 61 | * @return {Object} that, chainable
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| 62 | * @api public
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| 63 | */
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| 64 | that.before = function (name, fn) {
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| 65 | beforeHooks[name] = beforeHooks[name] || [];
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| 66 | beforeHooks[name].push(fn);
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| 67 | return that;
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| 68 | };
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| 69 |
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| 70 | /**
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| 71 | * .after
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| 72 | *
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| 73 | * @param {String} name
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| 74 | * @param {Function} function
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| 75 | * @return {Object} that, chainable
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| 76 | * @api public
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| 77 | */
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| 78 | that.after = function (name, fn) {
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| 79 | afterHooks[name] = afterHooks[name] || [];
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| 80 | afterHooks[name].push(fn);
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| 81 | return that;
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| 82 | };
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| 83 |
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| 84 | return that;
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| 85 |
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| 86 | };
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| 87 |
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| 88 | /**
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| 89 | * Library version.
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| 90 | */
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| 91 |
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| 92 | exports.version = '0.0.2'; |
| \ | No newline at end of file |