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common.js
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/**
* Created by Administrator on 2016/6/14 0014.
*/
/**
* DOM工具
* @type {{$: Function, getInnerText: Function, setInnerText: Function, getNextElementSibling: Function, getFirstElementChild: Function}}
*/
/**
* 根据字符串参数获取对象
* @param {string} str
* @returns {node}
*/
function $(str){
// 如果传的是字符串
if(typeof(str) === "string"){
if(str[0] === "#"){ // 传的是ID
return document.getElementById(str.substr(1));
}else if(str[0] === "."){ // 如果是class
return document.getElementsByClassName(str.substr(1));
}else{ // 标签
return document.getElementsByTagName(str.substr(1));
}
}
}
var EleUtil = {
/**
* 获取计算后的样式
* @param {Node} element
* @param {String} attr
* @returns {StyleObject}
*/
getCalcStyle : function(element,attr) {
if (window.getComputedStyle) {
// 标准
return window.getComputedStyle(element, null)[attr];
} else {
// IE9-
return element.currentStyle(attr);
}
},
//获取浏览器可视区域的大小
getClient : function() {
return {
clientWidth: window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth || 0,
clientHeight: window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight || 0
}
},
getScreen : function() {
return {
scrollWidth : document.body.scrollWidth || window.screen.availWidth,
scrollHeight : document.body.scrollHeight || window.screen.availHeight
}
}
};
var DomOperaTools = {
/**
* 获dom对象的innerText的取值
* @param {element} element
* @returns {string}
*/
getInnerText : function(element){
//判断当前浏览器是否支持innerText
if(typeof element.innerText === "string") {
return element.innerText;
}else{
return element.textContent;
}
},
/**
* 设置dom对象的innerText
* @param {element} element
* @param {string} content
*/
setInnerText : function(element,content){
if(typeof element.innerText === "string") {
element.innerText = content;
}else{
element.textContent = content;
}
},
/**
* 兼容浏览器 获取下一个兄弟元素
* @param {Node} element
* @returns {Node}
*/
getNextElementSibling : function(element){
if(element.nextElementSibling){
return element.nextElementSibling;
}else{
//获取下一个兄弟节点
var node = element.nextSibling;
//如果没有下一个节点，此时null
while(node && node.nodeType !== 1) {
node = node.nextSibling;
}
return node;
}
},
/**
* 获取第一个子元素 屏蔽浏览器的差异
* @param {Node} element
* @returns {Node}
*/
getFirstElementChild : function(element){
if(element.firstElementChild){
return element.firstElementChild;
}else{
//获取第一个子节点
var node = element.firstChild;
while(node && node.type !== 1){
node = element.nextSibling;
}
return node;
}
}
};
/**
* 事件管理工具
* @type {{addEventListener: Function}}
*/
var EventTools = {
/**
* 注册事件
* @param {Element} ele
* @param {string} type
* @param {function} handle
*/
addEventListener : function (ele,type,handle){
if(ele.addEventListener){
ele.addEventListener(type,handle,false);
}else if(ele.attachEvent){
ele.attachEvent("on"+type,handle);
}else{
ele["on" + type] = handle;
}
},
/**
* 移除事件
* @param {element} ele
* @param {string} type
* @param {function} handle
*/
removeEventListener : function(ele,type,handle){
if(ele.removeEventListener){
ele.removeEventListener(type,handle);
}else if(ele.detachEvent){
ele.detachEvent("on" + type, handle);
}else{
ele["on" + type] = null;
}
},
getEvent: function (event) {
return event ? event : window.event;
},
getTarget: function (event) {
return event.target ? event.target : event.srcElement;
},
preventDefault: function (event) {
if (event.preventDefault) {
event.preventDefault();
}else {
event.returnValue = false;
}
},
stopPropagation: function (event) {
if(event.stopPropagation) {
event.stopPropagation();
}else{
event.cancelBubble = true;
}
},
getPageX: function (event) {
if (event.pageX) {
return event.pageX;
}else{
var scrollLeft = document.documentElement.scrollLeft || document.body.scrollLeft;
return scrollLeft + event.clientX;
}
},
getPageY: function (event) {
if (event.pageY) {
return event.pageY;
}else{
var scrollTop = document.documentElement.scrollTop || document.body.scrollTop;
return scrollTop + event.clientY;
}
},
getScroll : function () {
var scrollTop = window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop || 0;
var scrollLeft = window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft || 0;
return {
scrollTop: scrollTop,
scrollLeft : scrollLeft
};
}
};