743 lines
25 KiB
JavaScript
743 lines
25 KiB
JavaScript
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/*!
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* form 表单组件
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* MIT Licensed
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*/
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layui.define('layer', function(exports){
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"use strict";
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var $ = layui.$
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,layer = layui.layer
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,hint = layui.hint()
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,device = layui.device()
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,MOD_NAME = 'form', ELEM = '.layui-form', THIS = 'layui-this'
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,SHOW = 'layui-show', HIDE = 'layui-hide', DISABLED = 'layui-disabled'
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,Form = function(){
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this.config = {
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verify: {
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required: [
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/[\S]+/
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,'必填项不能为空'
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]
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,phone: [
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/^1\d{10}$/
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,'请输入正确的手机号'
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]
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,email: [
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/^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/
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,'邮箱格式不正确'
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]
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,url: [
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/^(#|(http(s?)):\/\/|\/\/)[^\s]+\.[^\s]+$/
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,'链接格式不正确'
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]
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,number: function(value){
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if(!value || isNaN(value)) return '只能填写数字'
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}
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,date: [
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/^(\d{4})[-\/](\d{1}|0\d{1}|1[0-2])([-\/](\d{1}|0\d{1}|[1-2][0-9]|3[0-1]))*$/
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,'日期格式不正确'
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]
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,identity: [
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/(^\d{15}$)|(^\d{17}(x|X|\d)$)/
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,'请输入正确的身份证号'
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]
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}
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,autocomplete: null //全局 autocomplete 状态。null 表示不干预
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};
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};
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//全局设置
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Form.prototype.set = function(options){
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var that = this;
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$.extend(true, that.config, options);
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return that;
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};
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//验证规则设定
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Form.prototype.verify = function(settings){
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var that = this;
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$.extend(true, that.config.verify, settings);
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return that;
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};
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//表单事件
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Form.prototype.on = function(events, callback){
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return layui.onevent.call(this, MOD_NAME, events, callback);
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};
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//赋值/取值
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Form.prototype.val = function(filter, object){
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var that = this
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,formElem = $(ELEM + '[lay-filter="' + filter +'"]');
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//遍历
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formElem.each(function(index, item){
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var itemForm = $(this);
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//赋值
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layui.each(object, function(key, value){
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var itemElem = itemForm.find('[name="'+ key +'"]')
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,type;
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//如果对应的表单不存在，则不执行
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if(!itemElem[0]) return;
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type = itemElem[0].type;
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//如果为复选框
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if(type === 'checkbox'){
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itemElem[0].checked = value;
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} else if(type === 'radio') { //如果为单选框
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itemElem.each(function(){
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if(this.value == value ){
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this.checked = true
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}
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});
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} else { //其它类型的表单
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itemElem.val(value);
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}
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});
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});
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form.render(null, filter);
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//返回值
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return that.getValue(filter);
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};
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//取值
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Form.prototype.getValue = function(filter, itemForm){
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itemForm = itemForm || $(ELEM + '[lay-filter="' + filter +'"]').eq(0);
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var nameIndex = {} //数组 name 索引
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,field = {}
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,fieldElem = itemForm.find('input,select,textarea') //获取所有表单域
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layui.each(fieldElem, function(_, item){
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var othis = $(this)
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,init_name; //初始 name
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item.name = (item.name || '').replace(/^\s*|\s*&/, '');
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if(!item.name) return;
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//用于支持数组 name
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if(/^.*\[\]$/.test(item.name)){
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var key = item.name.match(/^(.*)\[\]$/g)[0];
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nameIndex[key] = nameIndex[key] | 0;
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init_name = item.name.replace(/^(.*)\[\]$/, '$1['+ (nameIndex[key]++) +']');
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}
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if(/^checkbox|radio$/.test(item.type) && !item.checked) return; //复选框和单选框未选中，不记录字段
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field[init_name || item.name] = item.value;
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});
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return field;
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};
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//表单控件渲染
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Form.prototype.render = function(type, filter){
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var that = this
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,options = that.config
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,elemForm = $(ELEM + function(){
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return filter ? ('[lay-filter="' + filter +'"]') : '';
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}())
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,items = {
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//输入框
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input: function(){
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var inputs = elemForm.find('input,textarea');
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//初始化全局的 autocomplete
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options.autocomplete && inputs.attr('autocomplete', options.autocomplete);
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}
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//下拉选择框
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,select: function(){
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var TIPS = '请选择', CLASS = 'layui-form-select', TITLE = 'layui-select-title'
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,NONE = 'layui-select-none', initValue = '', thatInput
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,selects = elemForm.find('select')
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//隐藏 select
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,hide = function(e, clear){
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if(!$(e.target).parent().hasClass(TITLE) || clear){
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$('.'+CLASS).removeClass(CLASS+'ed ' + CLASS+'up');
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thatInput && initValue && thatInput.val(initValue);
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}
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thatInput = null;
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}
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//各种事件
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,events = function(reElem, disabled, isSearch){
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var select = $(this)
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,title = reElem.find('.' + TITLE)
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,input = title.find('input')
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,dl = reElem.find('dl')
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,dds = dl.children('dd')
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,index = this.selectedIndex //当前选中的索引
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,nearElem; //select 组件当前选中的附近元素，用于辅助快捷键功能
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if(disabled) return;
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//展开下拉
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var showDown = function(){
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var top = reElem.offset().top + reElem.outerHeight() + 5 - $win.scrollTop()
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,dlHeight = dl.outerHeight();
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index = select[0].selectedIndex; //获取最新的 selectedIndex
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reElem.addClass(CLASS+'ed');
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dds.removeClass(HIDE);
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nearElem = null;
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//初始选中样式
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dds.eq(index).addClass(THIS).siblings().removeClass(THIS);
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//上下定位识别
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if(top + dlHeight > $win.height() && top >= dlHeight){
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reElem.addClass(CLASS + 'up');
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}
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followScroll();
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}
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//隐藏下拉
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,hideDown = function(choose){
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reElem.removeClass(CLASS+'ed ' + CLASS+'up');
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input.blur();
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nearElem = null;
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if(choose) return;
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notOption(input.val(), function(none){
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var selectedIndex = select[0].selectedIndex;
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//未查询到相关值
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if(none){
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initValue = $(select[0].options[selectedIndex]).html(); //重新获得初始选中值
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//如果是第一项，且文本值等于 placeholder，则清空初始值
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if(selectedIndex === 0 && initValue === input.attr('placeholder')){
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initValue = '';
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};
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//如果有选中值，则将输入框纠正为该值。否则清空输入框
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input.val(initValue || '');
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}
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});
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}
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//定位下拉滚动条
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,followScroll = function(){
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var thisDd = dl.children('dd.'+ THIS);
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if(!thisDd[0]) return;
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var posTop = thisDd.position().top
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,dlHeight = dl.height()
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,ddHeight = thisDd.height();
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//若选中元素在滚动条不可见底部
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if(posTop > dlHeight){
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dl.scrollTop(posTop + dl.scrollTop() - dlHeight + ddHeight - 5);
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}
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//若选择玄素在滚动条不可见顶部
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if(posTop < 0){
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dl.scrollTop(posTop + dl.scrollTop() - 5);
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}
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};
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//点击标题区域
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title.on('click', function(e){
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reElem.hasClass(CLASS+'ed') ? (
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hideDown()
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) : (
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hide(e, true),
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showDown()
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);
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dl.find('.'+NONE).remove();
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});
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//点击箭头获取焦点
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title.find('.layui-edge').on('click', function(){
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input.focus();
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});
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//select 中 input 键盘事件
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input.on('keyup', function(e){ //键盘松开
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var keyCode = e.keyCode;
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//Tab键展开
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if(keyCode === 9){
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showDown();
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}
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}).on('keydown', function(e){ //键盘按下
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var keyCode = e.keyCode;
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//Tab键隐藏
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if(keyCode === 9){
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hideDown();
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}
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//标注 dd 的选中状态
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var setThisDd = function(prevNext, thisElem1){
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var nearDd, cacheNearElem
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e.preventDefault();
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//得到当前队列元素
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var thisElem = function(){
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var thisDd = dl.children('dd.'+ THIS);
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//如果是搜索状态，且按 Down 键，且当前可视 dd 元素在选中元素之前，
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//则将当前可视 dd 元素的上一个元素作为虚拟的当前选中元素，以保证递归不中断
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if(dl.children('dd.'+ HIDE)[0] && prevNext === 'next'){
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var showDd = dl.children('dd:not(.'+ HIDE +',.'+ DISABLED +')')
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,firstIndex = showDd.eq(0).index();
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if(firstIndex >=0 && firstIndex < thisDd.index() && !showDd.hasClass(THIS)){
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return showDd.eq(0).prev()[0] ? showDd.eq(0).prev() : dl.children(':last');
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}
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}
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if(thisElem1 && thisElem1[0]){
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return thisElem1;
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}
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if(nearElem && nearElem[0]){
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return nearElem;
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}
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return thisDd;
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//return dds.eq(index);
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}();
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cacheNearElem = thisElem[prevNext](); //当前元素的附近元素
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nearDd = thisElem[prevNext]('dd:not(.'+ HIDE +')'); //当前可视元素的 dd 元素
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//如果附近的元素不存在，则停止执行，并清空 nearElem
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if(!cacheNearElem[0]) return nearElem = null;
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//记录附近的元素，让其成为下一个当前元素
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nearElem = thisElem[prevNext]();
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//如果附近不是 dd ，或者附近的 dd 元素是禁用状态，则进入递归查找
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if((!nearDd[0] || nearDd.hasClass(DISABLED)) && nearElem[0]){
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return setThisDd(prevNext, nearElem);
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}
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nearDd.addClass(THIS).siblings().removeClass(THIS); //标注样式
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followScroll(); //定位滚动条
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};
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if(keyCode === 38) setThisDd('prev'); //Up 键
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if(keyCode === 40) setThisDd('next'); //Down 键
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//Enter 键
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if(keyCode === 13){
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e.preventDefault();
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dl.children('dd.'+THIS).trigger('click');
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}
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});
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//检测值是否不属于 select 项
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var notOption = function(value, callback, origin){
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var num = 0;
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layui.each(dds, function(){
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var othis = $(this)
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,text = othis.text()
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,not = text.indexOf(value) === -1;
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if(value === '' || (origin === 'blur') ? value !== text : not) num++;
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origin === 'keyup' && othis[not ? 'addClass' : 'removeClass'](HIDE);
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});
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var none = num === dds.length;
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return callback(none), none;
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};
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//搜索匹配
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var search = function(e){
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var value = this.value, keyCode = e.keyCode;
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if(keyCode === 9 || keyCode === 13
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|| keyCode === 37 || keyCode === 38
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|| keyCode === 39 || keyCode === 40
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){
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return false;
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}
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notOption(value, function(none){
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if(none){
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dl.find('.'+NONE)[0] || dl.append('<p class="'+ NONE +'">无匹配项</p>');
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} else {
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dl.find('.'+NONE).remove();
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}
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}, 'keyup');
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if(value === ''){
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dl.find('.'+NONE).remove();
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}
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followScroll(); //定位滚动条
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};
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if(isSearch){
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input.on('keyup', search).on('blur', function(e){
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var selectedIndex = select[0].selectedIndex;
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thatInput = input; //当前的 select 中的 input 元素
|
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initValue = $(select[0].options[selectedIndex]).html(); //重新获得初始选中值
|
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//如果是第一项，且文本值等于 placeholder，则清空初始值
|
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if(selectedIndex === 0 && initValue === input.attr('placeholder')){
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initValue = '';
|
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};
|
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setTimeout(function(){
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notOption(input.val(), function(none){
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initValue || input.val(''); //none && !initValue
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}, 'blur');
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}, 200);
|
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});
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}
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//选择
|
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dds.on('click', function(){
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var othis = $(this), value = othis.attr('lay-value');
|
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var filter = select.attr('lay-filter'); //获取过滤器
|
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|
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if(othis.hasClass(DISABLED)) return false;
|
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if(othis.hasClass('layui-select-tips')){
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input.val('');
|
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} else {
|
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input.val(othis.text());
|
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othis.addClass(THIS);
|
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}
|
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|
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othis.siblings().removeClass(THIS);
|
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select.val(value).removeClass('layui-form-danger')
|
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layui.event.call(this, MOD_NAME, 'select('+ filter +')', {
|
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elem: select[0]
|
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,value: value
|
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,othis: reElem
|
||
});
|
||
|
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hideDown(true);
|
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return false;
|
||
});
|
||
|
||
reElem.find('dl>dt').on('click', function(e){
|
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return false;
|
||
});
|
||
|
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$(document).off('click', hide).on('click', hide); //点击其它元素关闭 select
|
||
}
|
||
|
||
selects.each(function(index, select){
|
||
var othis = $(this)
|
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,hasRender = othis.next('.'+CLASS)
|
||
,disabled = this.disabled
|
||
,value = select.value
|
||
,selected = $(select.options[select.selectedIndex]) //获取当前选中项
|
||
,optionsFirst = select.options[0];
|
||
|
||
if(typeof othis.attr('lay-ignore') === 'string') return othis.show();
|
||
|
||
var isSearch = typeof othis.attr('lay-search') === 'string'
|
||
,placeholder = optionsFirst ? (
|
||
optionsFirst.value ? TIPS : (optionsFirst.innerHTML || TIPS)
|
||
) : TIPS;
|
||
|
||
//替代元素
|
||
var reElem = $(['<div class="'+ (isSearch ? '' : 'layui-unselect ') + CLASS
|
||
,(disabled ? ' layui-select-disabled' : '') +'">'
|
||
,'<div class="'+ TITLE +'">'
|
||
,('<input type="text" placeholder="'+ $.trim(placeholder) +'" '
|
||
+('value="'+ $.trim(value ? selected.html() : '') +'"') //默认值
|
||
+((!disabled && isSearch) ? '' : ' readonly') //是否开启搜索
|
||
+' class="layui-input'
|
||
+(isSearch ? '' : ' layui-unselect')
|
||
+ (disabled ? (' ' + DISABLED) : '') +'">') //禁用状态
|
||
,'<i class="layui-edge"></i></div>'
|
||
,'<dl class="layui-anim layui-anim-upbit'+ (othis.find('optgroup')[0] ? ' layui-select-group' : '') +'">'
|
||
,function(options){
|
||
var arr = [];
|
||
layui.each(options, function(index, item){
|
||
if(index === 0 && !item.value){
|
||
arr.push('<dd lay-value="" class="layui-select-tips">'+ $.trim(item.innerHTML || TIPS) +'</dd>');
|
||
} else if(item.tagName.toLowerCase() === 'optgroup'){
|
||
arr.push('<dt>'+ item.label +'</dt>');
|
||
} else {
|
||
arr.push('<dd lay-value="'+ item.value +'" class="'+ (value === item.value ? THIS : '') + (item.disabled ? (' '+DISABLED) : '') +'">'+ $.trim(item.innerHTML) +'</dd>');
|
||
}
|
||
});
|
||
arr.length === 0 && arr.push('<dd lay-value="" class="'+ DISABLED +'">没有选项</dd>');
|
||
return arr.join('');
|
||
}(othis.find('*')) +'</dl>'
|
||
,'</div>'].join(''));
|
||
|
||
hasRender[0] && hasRender.remove(); //如果已经渲染，则Rerender
|
||
othis.after(reElem);
|
||
events.call(this, reElem, disabled, isSearch);
|
||
});
|
||
}
|
||
|
||
//复选框/开关
|
||
,checkbox: function(){
|
||
var CLASS = {
|
||
checkbox: ['layui-form-checkbox', 'layui-form-checked', 'checkbox']
|
||
,_switch: ['layui-form-switch', 'layui-form-onswitch', 'switch']
|
||
}
|
||
,checks = elemForm.find('input[type=checkbox]')
|
||
|
||
,events = function(reElem, RE_CLASS){
|
||
var check = $(this);
|
||
|
||
//勾选
|
||
reElem.on('click', function(){
|
||
var filter = check.attr('lay-filter') //获取过滤器
|
||
,text = (check.attr('lay-text')||'').split('|');
|
||
|
||
if(check[0].disabled) return;
|
||
|
||
check[0].checked ? (
|
||
check[0].checked = false
|
||
,reElem.removeClass(RE_CLASS[1]).find('em').text(text[1])
|
||
) : (
|
||
check[0].checked = true
|
||
,reElem.addClass(RE_CLASS[1]).find('em').text(text[0])
|
||
);
|
||
|
||
layui.event.call(check[0], MOD_NAME, RE_CLASS[2]+'('+ filter +')', {
|
||
elem: check[0]
|
||
,value: check[0].value
|
||
,othis: reElem
|
||
});
|
||
});
|
||
}
|
||
|
||
checks.each(function(index, check){
|
||
var othis = $(this), skin = othis.attr('lay-skin')
|
||
,text = (othis.attr('lay-text') || '').split('|'), disabled = this.disabled;
|
||
if(skin === 'switch') skin = '_'+skin;
|
||
var RE_CLASS = CLASS[skin] || CLASS.checkbox;
|
||
|
||
if(typeof othis.attr('lay-ignore') === 'string') return othis.show();
|
||
|
||
//替代元素
|
||
var hasRender = othis.next('.' + RE_CLASS[0])
|
||
,reElem = $(['<div class="layui-unselect '+ RE_CLASS[0]
|
||
,(check.checked ? (' '+ RE_CLASS[1]) : '') //选中状态
|
||
,(disabled ? ' layui-checkbox-disabled '+ DISABLED : '') //禁用状态
|
||
,'"'
|
||
,(skin ? ' lay-skin="'+ skin +'"' : '') //风格
|
||
,'>'
|
||
,function(){ //不同风格的内容
|
||
var title = check.title.replace(/\s/g, '')
|
||
,type = {
|
||
//复选框
|
||
checkbox: [
|
||
(title ? ('<span>'+ check.title +'</span>') : '')
|
||
,'<i class="layui-icon layui-icon-ok"></i>'
|
||
].join('')
|
||
|
||
//开关
|
||
,_switch: '<em>'+ ((check.checked ? text[0] : text[1]) || '') +'</em><i></i>'
|
||
};
|
||
return type[skin] || type['checkbox'];
|
||
}()
|
||
,'</div>'].join(''));
|
||
|
||
hasRender[0] && hasRender.remove(); //如果已经渲染，则Rerender
|
||
othis.after(reElem);
|
||
events.call(this, reElem, RE_CLASS);
|
||
});
|
||
}
|
||
|
||
//单选框
|
||
,radio: function(){
|
||
var CLASS = 'layui-form-radio', ICON = ['', '']
|
||
,radios = elemForm.find('input[type=radio]')
|
||
|
||
,events = function(reElem){
|
||
var radio = $(this), ANIM = 'layui-anim-scaleSpring';
|
||
|
||
reElem.on('click', function(){
|
||
var name = radio[0].name, forms = radio.parents(ELEM);
|
||
var filter = radio.attr('lay-filter'); //获取过滤器
|
||
var sameRadio = forms.find('input[name='+ name.replace(/(\.|#|\[|\])/g, '\\$1') +']'); //找到相同name的兄弟
|
||
|
||
if(radio[0].disabled) return;
|
||
|
||
layui.each(sameRadio, function(){
|
||
var next = $(this).next('.'+CLASS);
|
||
this.checked = false;
|
||
next.removeClass(CLASS+'ed');
|
||
next.find('.layui-icon').removeClass(ANIM).html(ICON[1]);
|
||
});
|
||
|
||
radio[0].checked = true;
|
||
reElem.addClass(CLASS+'ed');
|
||
reElem.find('.layui-icon').addClass(ANIM).html(ICON[0]);
|
||
|
||
layui.event.call(radio[0], MOD_NAME, 'radio('+ filter +')', {
|
||
elem: radio[0]
|
||
,value: radio[0].value
|
||
,othis: reElem
|
||
});
|
||
});
|
||
};
|
||
|
||
radios.each(function(index, radio){
|
||
var othis = $(this), hasRender = othis.next('.' + CLASS), disabled = this.disabled;
|
||
|
||
if(typeof othis.attr('lay-ignore') === 'string') return othis.show();
|
||
hasRender[0] && hasRender.remove(); //如果已经渲染，则Rerender
|
||
|
||
//替代元素
|
||
var reElem = $(['<div class="layui-unselect '+ CLASS
|
||
,(radio.checked ? (' '+CLASS+'ed') : '') //选中状态
|
||
,(disabled ? ' layui-radio-disabled '+DISABLED : '') +'">' //禁用状态
|
||
,'<i class="layui-anim layui-icon">'+ ICON[radio.checked ? 0 : 1] +'</i>'
|
||
,'<div>'+ function(){
|
||
var title = radio.title || '';
|
||
if(typeof othis.next().attr('lay-radio') === 'string'){
|
||
title = othis.next().html();
|
||
//othis.next().remove();
|
||
}
|
||
return title
|
||
}() +'</div>'
|
||
,'</div>'].join(''));
|
||
|
||
othis.after(reElem);
|
||
events.call(this, reElem);
|
||
});
|
||
}
|
||
};
|
||
type ? (
|
||
items[type] ? items[type]() : hint.error('不支持的 "'+ type + '" 表单渲染')
|
||
) : layui.each(items, function(index, item){
|
||
item();
|
||
});
|
||
return that;
|
||
};
|
||
|
||
//表单提交校验
|
||
var submit = function(){
|
||
var stop = null //验证不通过状态
|
||
,verify = form.config.verify //验证规则
|
||
,DANGER = 'layui-form-danger' //警示样式
|
||
,field = {} //字段集合
|
||
,button = $(this) //当前触发的按钮
|
||
,elem = button.parents(ELEM).eq(0) //当前所在表单域
|
||
,verifyElem = elem.find('*[lay-verify]') //获取需要校验的元素
|
||
,formElem = button.parents('form')[0] //获取当前所在的 form 元素，如果存在的话
|
||
,filter = button.attr('lay-filter'); //获取过滤器
|
||
|
||
|
||
//开始校验
|
||
layui.each(verifyElem, function(_, item){
|
||
var othis = $(this)
|
||
,vers = othis.attr('lay-verify').split('|')
|
||
,verType = othis.attr('lay-verType') //提示方式
|
||
,value = othis.val();
|
||
|
||
othis.removeClass(DANGER); //移除警示样式
|
||
|
||
//遍历元素绑定的验证规则
|
||
layui.each(vers, function(_, thisVer){
|
||
var isTrue //是否命中校验
|
||
,errorText = '' //错误提示文本
|
||
,isFn = typeof verify[thisVer] === 'function';
|
||
|
||
//匹配验证规则
|
||
if(verify[thisVer]){
|
||
var isTrue = isFn ? errorText = verify[thisVer](value, item) : !verify[thisVer][0].test(value)
|
||
//是否属于美化替换后的表单元素
|
||
,isForm2Elem = item.tagName.toLowerCase() === 'select' || /^checkbox|radio$/.test(item.type);
|
||
|
||
errorText = errorText || verify[thisVer][1];
|
||
|
||
if(thisVer === 'required'){
|
||
errorText = othis.attr('lay-reqText') || errorText;
|
||
}
|
||
|
||
//如果是必填项或者非空命中校验，则阻止提交，弹出提示
|
||
if(isTrue){
|
||
//提示层风格
|
||
if(verType === 'tips'){
|
||
layer.tips(errorText, function(){
|
||
if(typeof othis.attr('lay-ignore') !== 'string'){
|
||
if(isForm2Elem){
|
||
return othis.next();
|
||
}
|
||
}
|
||
return othis;
|
||
}(), {tips: 1});
|
||
} else if(verType === 'alert') {
|
||
layer.alert(errorText, {title: '提示', shadeClose: true});
|
||
}
|
||
//如果返回的为字符或数字，则自动弹出默认提示框；否则由 verify 方法中处理提示
|
||
else if(/\bstring|number\b/.test(typeof errorText)){
|
||
layer.msg(errorText, {icon: 5, shift: 6});
|
||
}
|
||
|
||
//非移动设备自动定位焦点
|
||
if(!device.mobile){
|
||
setTimeout(function(){
|
||
(isForm2Elem ? othis.next().find('input') : item).focus();
|
||
}, 7);
|
||
} else { //移动设备定位
|
||
$dom.scrollTop(function(){
|
||
try {
|
||
return (isForm2Elem ? othis.next() : othis).offset().top - 15
|
||
} catch(e){
|
||
return 0;
|
||
}
|
||
}());
|
||
}
|
||
|
||
othis.addClass(DANGER);
|
||
return stop = true;
|
||
}
|
||
}
|
||
});
|
||
if(stop) return stop;
|
||
});
|
||
|
||
if(stop) return false;
|
||
|
||
//获取当前表单值
|
||
field = form.getValue(null, elem);
|
||
|
||
//返回字段
|
||
return layui.event.call(this, MOD_NAME, 'submit('+ filter +')', {
|
||
elem: this
|
||
,form: formElem
|
||
,field: field
|
||
});
|
||
};
|
||
|
||
//自动完成渲染
|
||
var form = new Form()
|
||
,$dom = $(document), $win = $(window);
|
||
|
||
$(function(){
|
||
form.render();
|
||
});
|
||
|
||
//表单reset重置渲染
|
||
$dom.on('reset', ELEM, function(){
|
||
var filter = $(this).attr('lay-filter');
|
||
setTimeout(function(){
|
||
form.render(null, filter);
|
||
}, 50);
|
||
});
|
||
|
||
//表单提交事件
|
||
$dom.on('submit', ELEM, submit)
|
||
.on('click', '*[lay-submit]', submit);
|
||
|
||
exports(MOD_NAME, form);
|
||
});
|
||
|
||
|