diff options
Diffstat (limited to 'node_modules/delegate/src/delegate.js')
| -rw-r--r-- | node_modules/delegate/src/delegate.js | 78 |
1 files changed, 0 insertions, 78 deletions
diff --git a/node_modules/delegate/src/delegate.js b/node_modules/delegate/src/delegate.js deleted file mode 100644 index 9d9397d1..00000000 --- a/node_modules/delegate/src/delegate.js +++ /dev/null @@ -1,78 +0,0 @@ -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); - } - } -} - -/** - * Delegates event to a selector. - * - * @param {Element|String|Array} [elements] - * @param {String} selector - * @param {String} type - * @param {Function} callback - * @param {Boolean} useCapture - * @return {Object} - */ -function delegate(elements, selector, type, callback, useCapture) { - // Handle the regular Element usage - if (typeof elements.addEventListener === 'function') { - return _delegate.apply(null, arguments); - } - - // Handle Element-less usage, it defaults to global delegation - if (typeof type === 'function') { - // Use `document` as the first parameter, then apply arguments - // This is a short way to .unshift `arguments` without running into deoptimizations - return _delegate.bind(null, document).apply(null, arguments); - } - - // Handle Selector-based usage - if (typeof elements === 'string') { - elements = document.querySelectorAll(elements); - } - - // Handle Array-like based usage - return Array.prototype.map.call(elements, function (element) { - return _delegate(element, selector, type, callback, 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; |
