410 lines
10 KiB
JavaScript
410 lines
10 KiB
JavaScript
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var Util = {
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/**
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* 检测是否是图片文件
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* @param {String} f 选定的图片路径
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* @return {Boolean} 是否图片
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*/
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isImageFile: function(f) {
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var ext = f.substring(f.lastIndexOf("."), f.length).toLowerCase();
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return ext == ".bmp" || ext == ".png" || ext == ".jpg" || ext == ".gif";
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},
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/**
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* 检测对应的选项是否填写
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* @param {object} obj 数据容器对象
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* @param {String} name 数据项名称
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* @param {String} msg 如果没有填写,显示的提示信息
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* @return {Boolean}
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*/
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isEmpty: function(obj, name, msg) {
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if (!obj[name]) {
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with($("#" + name).addError()) {
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if (length > 0) get(0).focus();
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}
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if (msg) $.showTip(msg);
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return true;
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}
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return false;
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},
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/**
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* 检测数字是否在指定的范围区间中
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* @param {Object} v 要检测的值
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* @param {Object} min 允许的最小值,不传递或为null则不限制
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* @param {Object} max 允许的最大值,不传递或为null则不限制
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* @return {Boolean}
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*/
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checkNumber: function(v, min, max) {
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v = parseFloat(v);
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return !isNaN(v) && (min == null || v >= min) && (max == null || v <= max);
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},
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/**
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* 转换数字为字符串
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* @param {Number} num 要转换的数字
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* @param {Number} digits 数字的位数
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* @return {String} 转换后的字符串
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*/
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convertNumberToString: function(num, digits) {
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num = '' + num;
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var ab = [];
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for (var i = 0; i < digits - num.length; i++) {
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ab.push("0");
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}
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return ab.join("") + num;
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},
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/**
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* 转换浮点数为字符串
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* @param {Number} num 要转换的数字
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* @param {Number} floatDigits 小数位数
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* @return {String} 转换后的小数
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*/
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convertDecimalToString: function(num, floatDigits) {
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floatDigits = floatDigits || 2;
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num = '' + Math.round(num * (10 ^ floatDigits)) / (10 ^ floatDigits);
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var fc = floatDigits;
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var idx = num.indexOf(".");
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if (idx != -1) fc = floatDigits - num.length - idx - 1;
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else num += ".";
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var ab = [];
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for (var i = 0; i < fc; i++) {
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ab.push("0");
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}
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return num + ab.join("");
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},
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/**
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* 是否点子邮件
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* @param {String} str 验证字符串
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* @return {Boolean}
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*/
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isEmail: function(str) {
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return /^\w+[\.\-_0-9a-z]+@[0-9a-z]+([\-_\.][0-9a-z]+)*\.(com|net|org|edu|cn)$/i.test(str);
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},
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/**
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* 加载JS
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* @param {String} url JS url
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* @param {Function} callback 加载成功回调
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* @param {String} charset 编码（可选）
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*/
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loadJS: function(url, callback, charset) {
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/// <summary>加载JS</summary>
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var script = document.createElement('script');
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script.onload = script.onreadystatechange = function() {
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if (script && script.readyState && /^(?!(?:loaded|complete)$)/.test(script.readyState)) return;
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script.onload = script.onreadystatechange = null;
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script.src = '';
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script.parentNode.removeChild(script);
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script = null;
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if (callback) callback();
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};
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script.charset = charset || document.charset || document.characterSet;
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script.src = url;
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try {
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document.getElementsByTagName("head")[0].appendChild(script);
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} catch (e) {}
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}
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}
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var base64 = {
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base64map: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".split("")
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};
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base64 = $.extend({
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base64DeMap: ! function() {
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var n = {};
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return $.each(base64.base64map, function(t, i) {
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n[i] = t
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}), n
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}(),
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encode: function(n) {
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for (var t = [], u = base64.base64map, f = n.length, i, r = 0; r < f;) i = n[r] << 16 | n[r + 1] << 8 | n[r + 2], t.push(u[i >> 18], u[i >> 12 & 63], u[i >> 6 & 63], u[i & 63]), r += 3;
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return f % 3 == 1 ? (t.pop(), t.pop(), t.push("=", "=")) : (t.pop(), t.push("=")), t.join("")
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},
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decode: function(n) {
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var f = [],
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t = n.split(""),
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r = base64.base64DeMap,
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e = t.length,
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u, i = 0;
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if (e % 4) return null;
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while (i < e) u = r[t[i]] << 18 | r[t[i + 1]] << 12 | r[t[i + 2]] << 6 | r[t[i + 3]], f.push(u >> 16, u >> 8 & 255, u & 255), i += 4;
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while (t[--e] == "=") f.pop();
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return f
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},
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encodeArrayBuffer: function(n) {
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for (var i = new DataView(n), u = i.byteLength, r = [], t = 0; t < u; t++) r.push(i.getUint8(t));
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return base64.encode(r)
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},
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toObjectUrl: function(n, t) {
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return "data:" + t + ";base64," + n
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}
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}, base64);
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//#region Date 扩展
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/**
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* 表示一个时间差值对象
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* @param {Number} count 差值
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*/
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function DateDifference(count) {
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this.TicksCount = count;
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/**
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* 获得差值的秒数
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* @return {Float} 差值的秒数
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*/
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this.getSeconds = function() {
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return this.TicksCount / 1000;
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};
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/**
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* 获得差值的分钟数
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* @return {Float} 差值的分钟数
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*/
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this.getMinutes = function() {
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return this.getSeconds() / 60;
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};
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/**
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* 获得差值的小时数
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* @return {Float} 差值的小时数
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*/
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this.getHours = function() {
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return this.getMinutes() / 60;
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};
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/**
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* 获得差值的天数
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* @return {Float} 差值的天数
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*/
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this.getDays = function() {
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return this.getHours() / 24;
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};
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/**
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* 获得差值的年数（大致）
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* @return {Float} 差值的年数
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*/
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this.getYears = function() {
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return this.getDays() / 365;
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};
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return this;
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}
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/**
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* 判断当前的日期时间是否合法
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* @param {Date} count 验证的日期
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* @return {Boolean}
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*/
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Date.prototype.isValid = function(count) {
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return !isNaN(this.getFullYear());
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};
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/**
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* 将日期添加上指定的天数
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* @param {Date} count 要添加的天数
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*/
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Date.prototype.addDays = function(count) {
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return new Date(this.getFullYear(), this.getMonth(), this.getDate() + count);
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};
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/**
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* 将日期添加上指定的月数
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* @param {Date} count 要添加的月数
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*/
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Date.prototype.addMonthes = function(count) {
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return new Date(this.getFullYear(), this.getMonth() + count, this.getDate());
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};
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/**
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* 将日期添加上指定的年数
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* @param {Date} count 要添加的天数
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*/
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Date.prototype.addYears = function(count) {
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return new Date(this.getFullYear() + count, this.getMonth(), this.getDate());
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};
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/**
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* 将日期减去另一个日期，得到二者的差值
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* @param {Date} subdate 要减去的日期
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* @return {Object} DateDifference
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*/
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Date.prototype.subtract = function(subdate) {
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if (subdate instanceof Date) {
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return new DateDifference(this - subdate);
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}
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return null;
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};
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/**
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* 获得当前日期的天
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* @return {Date}
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*/
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Date.prototype.__defineGetter__("date", function() {
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return new Date(this.getFullYear(), this.getMonth(), this.getDate(), 0, 0, 0);
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});
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/**
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* 格式化日期
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* @param {String} format 格式化格式 例如：yyyy-MM-dd
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* @return {String} 格式化后字符串 例如：2014-08-12
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*/
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Date.prototype.format = function(format) {
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format = format || "yyyy-MM-dd";
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var o = {
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"M+": this.getMonth() + 1, //month
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"d+": this.getDate(), //day
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"h+": this.getHours(), //hour
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"m+": this.getMinutes(), //minute
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"s+": this.getSeconds(), //second
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"q+": Math.floor((this.getMonth() + 3) / 3), //quarter
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"S": this.getMilliseconds() //millisecond
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};
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if (/(y+)/i.test(format)) {
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format = format.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
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}
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for (var k in o) {
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if (new RegExp("(" + k + ")").test(format)) {
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format = format.replace(RegExp.$1, RegExp.$1.length == 1 ? o[k] : ("00" + o[k]).substr(("" + o[k]).length));
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}
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}
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return format;
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};
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/**
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* 检测是否是今天
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*/
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Date.prototype.__defineGetter__("isToday", function() {
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return this.date.getTime() == (new Date()).date.getTime();
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});
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/**
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* 获取星期
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* @param {Number} len 格式化后字符串长度
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* @return {String} 格式化后的星期几
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*/
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Date.prototype.day = function(len) {
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var days = ['日', '一', '二', '三', '四', '五', '六'];
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switch (len) {
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case 1:
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return days[this.getDay()];
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break;
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case 2:
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return '周' + days[this.getDay()];
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break;
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default:
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return '星期' + days[this.getDay()];
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break;
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}
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};
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//#endregion
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//#region String扩展
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function asDate(s) {
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if (/\/Date\((\d+)\)\//i.exec(s)) {
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return new Date(parseInt(RegExp.$1));
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}
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if (/(\d+)-0*(\d+)-0*(\d+)T0*(\d+):0*(\d+):0*(\d+)/i.exec(s)) {
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return new Date(parseInt(RegExp.$1), parseInt(RegExp.$2) - 1, parseInt(RegExp.$3), parseInt(RegExp.$4), parseInt(RegExp.$5), parseInt(RegExp.$6));
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}
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if (/(\d{4})-0?(\d{1,2})-0?(\d{1,2})/.exec(s)) {
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return new Date(RegExp.$1, RegExp.$2 - 1, RegExp.$3);
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}
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return new Date(s);
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}
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String.prototype.toDate = function() {
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return asDate(this + "");
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};
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String.prototype.padLeft = function(len, str) {
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/// <summary>将字符串左侧进行填充至指定长度</summary>
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if (this.length >= len) {
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return this;
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}
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var s = [];
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while (s.length + this.length < len) {
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s.push(str);
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}
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return s.join("") + this;
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};
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String.prototype.padRight = function(len, str) {
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/// <summary>将字符串右侧进行填充至指定长度</summary>
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if (this.length >= len) {
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return this;
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}
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var s = [];
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while (s.length + this.length < len) {
|
|||
|
|
s.push(str);
|
|||
|
|
}
|
|||
|
|
return this + s.join("");
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
String.prototype.format = function(format, str) {
|
|||
|
|
/// <summary>格式化字符串</summary>
|
|||
|
|
|
|||
|
|
var number = parseInt(format);
|
|||
|
|
return number > 0 ? this.padLeft(number, str || ' ') : this.padRight(number, str || ' ');
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
String.prototype.temp = function(a) {
|
|||
|
|
return this.replace(/\$\w+\$/gi, function(b) {
|
|||
|
|
b = a[b.replace(/\$/g, "")];
|
|||
|
|
return b + "" == "undefined" ? "" : b;
|
|||
|
|
});
|
|||
|
|
};
|
|||
|
|
//#endreigon
|
|||
|
|
|
|||
|
|
//#region 数值扩展
|
|||
|
|
|
|||
|
|
Number.prototype.toSize = function() {
|
|||
|
|
/// <summary>转换为内容大小表示</summary>
|
|||
|
|
var array = ["字节", "KB", "MB", "GB", "TB"];
|
|||
|
|
var index = 0;
|
|||
|
|
|
|||
|
|
var i = this * 1.0;
|
|||
|
|
while (i > 1000 && index < array.length) {
|
|||
|
|
index++;
|
|||
|
|
i = i / 1024.0;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return Math.round(i * 100) / 100 + array[index];
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
Number.prototype.format = function(format) {
|
|||
|
|
/// <summary>对数值进行格式化</summary>
|
|||
|
|
// 进制|整数长度|小数长度
|
|||
|
|
|
|||
|
|
var args = format.split(':');
|
|||
|
|
var strValue = this.toString(args[0] || 10);
|
|||
|
|
|
|||
|
|
if (!args[1]) {
|
|||
|
|
return strValue;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
var parts = strValue.split(".");
|
|||
|
|
var _int = "";
|
|||
|
|
var _float = "";
|
|||
|
|
|
|||
|
|
if (args[1]) {
|
|||
|
|
//整数
|
|||
|
|
_int = parts[0].padLeft(args[1], '0');
|
|||
|
|
} else {
|
|||
|
|
_int = parts[0];
|
|||
|
|
}
|
|||
|
|
_float = args[2] ? (parts[1] || "").padRight(args[2], '0') : (parts[1] || "");
|
|||
|
|
|
|||
|
|
return _int + (_float ? "." : "") + _float;
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
Boolean.prototype.format = function(format) {
|
|||
|
|
var args = format.split(':');
|
|||
|
|
return this == true ? args[0] : args[1];
|
|||
|
|
};
|