jquery bind-first plugin
此腳本不應該直接安裝，它是一個供其他腳本使用的函式庫。欲使用本函式庫，請在腳本 metadata 寫上： // @require https://update.gf.qytechs.cn/scripts/2857/26080/jquerybind-first.js
// ==UserScript==
// @name jquery.bind-first
// @namespace private-face
// @description jquery bind-first plugin
// @source https://github.com/private-face/jquery.bind-first
// @copyright Vladimir Zhuravlev
// @version 0.2.3
// @license MIT
// ==/UserScript==
/*
* jQuery.bind-first library v0.2.3
* Copyright (c) 2013 Vladimir Zhuravlev
*
* Released under MIT License
* @license
*
* Date: Thu Feb 6 10:13:59 ICT 2014
**/
function loadjQueryBindFirst() {
(function($) {
var splitVersion = $.fn.jquery.split(".");
var major = parseInt(splitVersion[0]);
var minor = parseInt(splitVersion[1]);
var JQ_LT_17 = (major < 1) || (major == 1 && minor < 7);
function eventsData($el) {
return JQ_LT_17 ? $el.data('events') : $._data($el[0]).events;
}
function moveHandlerToTop($el, eventName, isDelegated) {
var data = eventsData($el);
var events = data[eventName];
if (!JQ_LT_17) {
var handler = isDelegated ? events.splice(events.delegateCount - 1, 1)[0] : events.pop();
events.splice(isDelegated ? 0 : (events.delegateCount || 0), 0, handler);
return;
}
if (isDelegated) {
data.live.unshift(data.live.pop());
} else {
events.unshift(events.pop());
}
}
function moveEventHandlers($elems, eventsString, isDelegate) {
var events = eventsString.split(/\s+/);
$elems.each(function() {
for (var i = 0; i < events.length; ++i) {
var pureEventName = $.trim(events[i]).match(/[^\.]+/i)[0];
moveHandlerToTop($(this), pureEventName, isDelegate);
}
});
}
function makeMethod(methodName) {
$.fn[methodName + 'First'] = function() {
var args = $.makeArray(arguments);
var eventsString = args.shift();
if (eventsString) {
$.fn[methodName].apply(this, arguments);
moveEventHandlers(this, eventsString);
}
return this;
}
}
// bind
makeMethod('bind');
// one
makeMethod('one');
// delegate
$.fn.delegateFirst = function() {
var args = $.makeArray(arguments);
var eventsString = args[1];
if (eventsString) {
args.splice(0, 2);
$.fn.delegate.apply(this, arguments);
moveEventHandlers(this, eventsString, true);
}
return this;
};
// live
$.fn.liveFirst = function() {
var args = $.makeArray(arguments);
// live = delegate to the document
args.unshift(this.selector);
$.fn.delegateFirst.apply($(document), args);
return this;
};
// on (jquery >= 1.7)
if (!JQ_LT_17) {
$.fn.onFirst = function(types, selector) {
var $el = $(this);
var isDelegated = typeof selector === 'string';
$.fn.on.apply($el, arguments);
// events map
if (typeof types === 'object') {
for (type in types)
if (types.hasOwnProperty(type)) {
moveEventHandlers($el, type, isDelegated);
}
} else if (typeof types === 'string') {
moveEventHandlers($el, types, isDelegated);
}
return $el;
};
}
})(jQuery);
}
if (window.document.readyState === 'complete') {
loadjQueryBindFirst();
} else {
window.addEventListener('load',loadjQueryBindFirst, false);
}