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- (function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.listen = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
- var DOCUMENT_NODE_TYPE = 9;
- /**
- * A polyfill for Element.matches()
- */
- if (typeof Element !== 'undefined' && !Element.prototype.matches) {
- var proto = Element.prototype;
- proto.matches = proto.matchesSelector ||
- proto.mozMatchesSelector ||
- proto.msMatchesSelector ||
- proto.oMatchesSelector ||
- proto.webkitMatchesSelector;
- }
- /**
- * Finds the closest parent that matches a selector.
- *
- * @param {Element} element
- * @param {String} selector
- * @return {Function}
- */
- function closest (element, selector) {
- while (element && element.nodeType !== DOCUMENT_NODE_TYPE) {
- if (element.matches(selector)) return element;
- element = element.parentNode;
- }
- }
- module.exports = closest;
- },{}],2:[function(require,module,exports){
- var closest = require('./closest');
- /**
- * Delegates event to a selector.
- *
- * @param {Element} element
- * @param {String} selector
- * @param {String} type
- * @param {Function} callback
- * @param {Boolean} useCapture
- * @return {Object}
- */
- function delegate(element, selector, type, callback, useCapture) {
- var listenerFn = listener.apply(this, arguments);
- element.addEventListener(type, listenerFn, useCapture);
- return {
- destroy: function() {
- element.removeEventListener(type, listenerFn, useCapture);
- }
- }
- }
- /**
- * Finds closest match and invokes callback.
- *
- * @param {Element} element
- * @param {String} selector
- * @param {String} type
- * @param {Function} callback
- * @return {Function}
- */
- function listener(element, selector, type, callback) {
- return function(e) {
- e.delegateTarget = closest(e.target, selector);
- if (e.delegateTarget) {
- callback.call(element, e);
- }
- }
- }
- module.exports = delegate;
- },{"./closest":1}],3:[function(require,module,exports){
- /**
- * Check if argument is a HTML element.
- *
- * @param {Object} value
- * @return {Boolean}
- */
- exports.node = function(value) {
- return value !== undefined
- && value instanceof HTMLElement
- && value.nodeType === 1;
- };
- /**
- * Check if argument is a list of HTML elements.
- *
- * @param {Object} value
- * @return {Boolean}
- */
- exports.nodeList = function(value) {
- var type = Object.prototype.toString.call(value);
- return value !== undefined
- && (type === '[object NodeList]' || type === '[object HTMLCollection]')
- && ('length' in value)
- && (value.length === 0 || exports.node(value[0]));
- };
- /**
- * Check if argument is a string.
- *
- * @param {Object} value
- * @return {Boolean}
- */
- exports.string = function(value) {
- return typeof value === 'string'
- || value instanceof String;
- };
- /**
- * Check if argument is a function.
- *
- * @param {Object} value
- * @return {Boolean}
- */
- exports.fn = function(value) {
- var type = Object.prototype.toString.call(value);
- return type === '[object Function]';
- };
- },{}],4:[function(require,module,exports){
- var is = require('./is');
- var delegate = require('delegate');
- /**
- * Validates all params and calls the right
- * listener function based on its target type.
- *
- * @param {String|HTMLElement|HTMLCollection|NodeList} target
- * @param {String} type
- * @param {Function} callback
- * @return {Object}
- */
- function listen(target, type, callback) {
- if (!target && !type && !callback) {
- throw new Error('Missing required arguments');
- }
- if (!is.string(type)) {
- throw new TypeError('Second argument must be a String');
- }
- if (!is.fn(callback)) {
- throw new TypeError('Third argument must be a Function');
- }
- if (is.node(target)) {
- return listenNode(target, type, callback);
- }
- else if (is.nodeList(target)) {
- return listenNodeList(target, type, callback);
- }
- else if (is.string(target)) {
- return listenSelector(target, type, callback);
- }
- else {
- throw new TypeError('First argument must be a String, HTMLElement, HTMLCollection, or NodeList');
- }
- }
- /**
- * Adds an event listener to a HTML element
- * and returns a remove listener function.
- *
- * @param {HTMLElement} node
- * @param {String} type
- * @param {Function} callback
- * @return {Object}
- */
- function listenNode(node, type, callback) {
- node.addEventListener(type, callback);
- return {
- destroy: function() {
- node.removeEventListener(type, callback);
- }
- }
- }
- /**
- * Add an event listener to a list of HTML elements
- * and returns a remove listener function.
- *
- * @param {NodeList|HTMLCollection} nodeList
- * @param {String} type
- * @param {Function} callback
- * @return {Object}
- */
- function listenNodeList(nodeList, type, callback) {
- Array.prototype.forEach.call(nodeList, function(node) {
- node.addEventListener(type, callback);
- });
- return {
- destroy: function() {
- Array.prototype.forEach.call(nodeList, function(node) {
- node.removeEventListener(type, callback);
- });
- }
- }
- }
- /**
- * Add an event listener to a selector
- * and returns a remove listener function.
- *
- * @param {String} selector
- * @param {String} type
- * @param {Function} callback
- * @return {Object}
- */
- function listenSelector(selector, type, callback) {
- return delegate(document.body, selector, type, callback);
- }
- module.exports = listen;
- },{"./is":3,"delegate":2}]},{},[4])(4)
- });
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