【JavaScript 封装库】Prototype 原型版发布！

/*
源码作者: 石不易(Louis Shi)
联系方式: http://www.shibuyi.net ===================================================================================================
程序名称: JavaScript 封装库 Prototype 版
迭代版本: 无
功能总数: 14 个
功能介绍:
1. 实现代码连缀
2. id / name / tagName / class 节点获取
3. class 选择器添加与移除
4. css 规则添加与移除
5. 设置与获取元素内部文本
6. 设置与获取css
7. 实现 click 事件
*/

// 实例化入口
function $() {
return new Base();
}

// 封装库构造方法
function Base() {
this.elements = [];
}

// 获取id元素节点
Base.prototype.getId = function (id) {
this.elements.push(document.getElementById(id));
return this;
};

// 获取name元素节点
Base.prototype.getName = function (name, position) {
if (typeof position != 'undefined') { // 局部
var nodes = $().getTagName('*', position).elements;
for (var i = 0; i < nodes.length; i ++) {
if (nodes[i].getAttribute('name') == name) this.elements.push(nodes[i]);
}
} else { // 全局
var nodes = document.getElementsByName(name);
for (var i = 0; i < nodes.length; i ++) {
this.elements.push(nodes[i]);
}
}
return this;
};

// 获取tagName元素节点
Base.prototype.getTagName = function (tagName, position) {
if (typeof position != 'undefined') { // 局部
var nodes = $().getId(position).elements[0].getElementsByTagName(tagName);
} else { // 全局
var nodes = document.getElementsByTagName(tagName);
}
for (var i = 0; i < nodes.length; i ++) {
this.elements.push(nodes[i]);
}
return this;
};

// 获取class元素节点
Base.prototype.getClass = function (className, position) {
if (typeof position != 'undefined') { // 局部
var nodes = $().getTagName('*', position).elements;
} else { // 全局
var nodes = $().getTagName('*').elements;
}
for (var i = 0; i < nodes.length; i ++) {
if (nodes[i].className == className) this.elements.push(nodes[i]);
}
return this;
};

// 获取与设置innerHTML
Base.prototype.html = function (text) {
if (typeof text != 'undefined') { // 设置
for (var i = 0; i < this.elements.length; i ++) {
this.elements[i].innerHTML = text;
}
} else { // 获取
var html = [];
for (var i = 0; i < this.elements.length; i ++) {
html.push(this.elements[i].innerHTML);
}
return html;
}
return this;
};

// 获取与设置CSS
Base.prototype.css = function (cssKey, cssValue) {
if (typeof cssValue != 'undefined' || cssKey instanceof Array) { // 设置
for (var i = 0; i < this.elements.length; i ++) {
if (cssKey instanceof Array) {
var _cssKye, _cssValue, _css;
for (var j = 0; j < cssKey.length; j ++) {
if (cssKey[j].match(/([a-z]+)\s*=\s*([\w#]+)/i) != null) { // ['color=red', 'backgroundColor = green']
_css = cssKey[j].split(/\s*=\s*/);
_cssKey = _css[0];
_cssValue = _css[1];
this.elements[i].style[_cssKey] = _cssValue;
}
}
} else {
this.elements[i].style[cssKey] = cssValue;
}
}
} else { // 获取
var css = [];
for (var i = 0; i < this.elements.length; i ++) {
if (typeof window.getComputedStyle != 'undefined') { // W3C
css.push(window.getComputedStyle(this.elements[i], null)[cssKey]);
} else if (typeof this.elements[i].currentStyle != 'undefined') { // IE 6/7/8
css.push(this.elements[i].currentStyle[cssKey]);
}
}
return css;
}
return this;
};

// 检测class选择器
Base.prototype.hasClass = function (className) {
var results = [];
for (var i = 0; i < this.elements.length; i ++) {
results.push(!!this.elements[i].className.match(new RegExp('(\\s|^)' + className + '(\\s|$)')));
}
return results;
};

// 添加class选择器
Base.prototype.addClass = function (className) {
var space = '';
var results = this.hasClass(className);
for (var i = 0; i < results.length; i ++) {
if (!results[i]) {
if (this.elements[i].className != '') space = ' ';
this.elements[i].className += space + className;
}
}
return this;
};

// 移除class选择器
Base.prototype.removeClass = function (className) {
var results = this.hasClass(className);
for (var i = 0; i < results.length; i ++) {
if (results[i]) this.elements[i].className = this.elements[i].className.replace(new RegExp('(\\s|^)' + className + '(\\s|$)'), '');
}
return this;
};

// 添加样式规则Rule
Base.prototype.addRule = function (ruleName, ruleText, index, position) {
if (typeof index == 'undefined') index = 0;
if (typeof position == 'undefined') position = 0;
var sheet = document.styleSheets[index];
if (typeof sheet != 'undefined') {
if (typeof sheet.insertRule != 'undefined') { // W3C
sheet.insertRule(ruleName + ' {' + ruleText + '}', position);
} else if (sheet.addRule != 'undefined') { // IE 6/7/8
sheet.addRule(ruleName, ruleText, position);
}
}
return this;
};

// 移除样式规则Rule
Base.prototype.removeRule = function (index, position) {
if (typeof index == 'undefined') index = 0;
if (typeof position == 'undefined') position = 0;
var sheet = document.styleSheets[index];
if (typeof sheet != 'undefined') {
if (typeof sheet.deleteRule != 'undefined') { // W3C
sheet.deleteRule(position);
} else if (typeof sheet.removeRule != 'undefined') { // IE 6/7/8
sheet.removeRule(position);
}
}
return this;
};

// 鼠标 click 事件
Base.prototype.click = function (method) {
if (method instanceof Function) {
for (var i = 0; i < this.elements.length; i ++) {
this.elements[i].onclick = method;
}
}
return this;
};