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573 lines
20 KiB
JavaScript
573 lines
20 KiB
JavaScript
/**
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@Name：layui.form 表单组件
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@Author：贤心
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@License：MIT
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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', 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)$)/
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,'请输入正确的身份证号'
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]
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}
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};
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};
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//全局设置
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Form.prototype.set = function(options){
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var that = this;
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$.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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//表单事件监听
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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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//初始赋值
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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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formElem.each(function(index, item){
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var itemFrom = $(this);
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layui.each(object, function(key, value){
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var itemElem = itemFrom.find('[name="'+ key +'"]');
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itemElem.val(value);
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if(!itemElem[0]) return;
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//如果有 checked 的内置属性，就改变 checked 属性的值
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if('checked' in itemElem[0]){
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itemElem[0].checked = 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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};
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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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,elemForm = $(ELEM + function(){
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return filter ? ('[lay-filter="' + filter +'"]') : '';
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}())
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,items = {
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//下拉选择框
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select: function(){
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var TIPS = '请选择', CLASS = 'layui-form-select', TITLE = 'layui-select-title'
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,NONE = 'layui-select-none', initValue = '', thatInput
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,selects = elemForm.find('select'), hide = function(e, clear){
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if(!$(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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,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 = Number(select.val()? select.val(): -1) + 1 ;
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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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reElem.addClass(CLASS+'ed');
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dds.removeClass(HIDE);
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//确保没有选择的时候第一个也会有样式
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dl.children('dd:eq('+index+')').addClass(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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}, hideDown = function(choose){
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reElem.removeClass(CLASS+'ed ' + CLASS+'up');
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input.blur();
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if(choose) return;
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notOption(input.val(), function(none){
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if(none){
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initValue = dl.find('.'+THIS).html();
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input && input.val(initValue);
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}
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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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//键盘事件
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input.on('keyup', function(e){
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var keyCode = e.keyCode;
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//Tab键
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if(keyCode === 9){
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showDown();
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}
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}).on('keydown', function(e){
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var keyCode = e.keyCode;
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//Tab键
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if(keyCode === 9){
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hideDown();
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}
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//up 键
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if(keyCode === 38){
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e.preventDefault();
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index--;
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// 如果是不可点击状态，则跳过
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if(dl.children('dd:eq('+index+')').hasClass(DISABLED)) index--;
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if(index < 0) index = 0;
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dl.children('dd:eq('+index+')').addClass(THIS).siblings().removeClass(THIS);
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}
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//down 键
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if(keyCode === 40){
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e.preventDefault();
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index++;
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if(dl.children('dd:eq('+index+')').hasClass(DISABLED)) index++;
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if(index > dds.length - 1) index = dds.length - 1;
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dl.children('dd:eq('+index+')').addClass(THIS).siblings().removeClass(THIS);
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}
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//回车键
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if(keyCode === 13){
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e.preventDefault();
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var othis = dl.children('dd:eq('+index+')')
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,value = othis.attr('lay-value')
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,filter = select.attr('lay-filter'); //获取过滤器
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if(index === 0){
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input.val('');
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} else {
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input.val(othis.text());
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}
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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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});
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hideDown(true);
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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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};
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if(isSearch){
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input.on('keyup', search).on('blur', function(e){
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thatInput = input;
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initValue = dl.find('.' + THIS).html();
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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 = $(this), value = othis.attr('lay-value');
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var filter = select.attr('lay-filter'); //获取过滤器
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if(othis.hasClass(DISABLED)) return false;
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if(othis.hasClass('layui-select-tips')){
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input.val('');
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index = 0;
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} else {
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input.val(othis.text());
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othis.addClass(THIS);
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index = Number(value) + 1;
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}
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othis.siblings().removeClass(THIS);
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select.val(value).removeClass('layui-form-danger')
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layui.event.call(this, MOD_NAME, 'select('+ filter +')', {
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elem: select[0]
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,value: value
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,othis: reElem
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});
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hideDown(true);
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return false;
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});
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reElem.find('dl>dt').on('click', function(e){
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return false;
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});
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//关闭下拉
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$(document).off('click', hide).on('click', hide);
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}
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selects.each(function(index, select){
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var othis = $(this)
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,hasRender = othis.next('.'+CLASS)
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,disabled = this.disabled
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,value = select.value
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,selected = $(select.options[select.selectedIndex]) //获取当前选中项
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,optionsFirst = select.options[0];
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if(typeof othis.attr('lay-ignore') === 'string') return othis.show();
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var isSearch = typeof othis.attr('lay-search') === 'string'
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,placeholder = optionsFirst ? (
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optionsFirst.value ? TIPS : (optionsFirst.innerHTML || TIPS)
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) : TIPS;
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//替代元素
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var reElem = $(['<div class="'+ (isSearch ? '' : 'layui-unselect ') + CLASS + (disabled ? ' layui-select-disabled' : '') +'">'
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,'<div class="'+ TITLE +'"><input type="text" placeholder="'+ placeholder +'" value="'+ (value ? selected.html() : '') +'" '+ (isSearch ? '' : 'readonly') +' class="layui-input'+ (isSearch ? '' : ' layui-unselect') + (disabled ? (' ' + DISABLED) : '') +'">'
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,'<i class="layui-edge"></i></div>'
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,'<dl class="layui-anim layui-anim-upbit'+ (othis.find('optgroup')[0] ? ' layui-select-group' : '') +'">'+ function(options){
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var arr = [];
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layui.each(options, function(index, item){
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if(index === 0 && !item.value){
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arr.push('<dd lay-value="" class="layui-select-tips">'+ (item.innerHTML || TIPS) +'</dd>');
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} else if(item.tagName.toLowerCase() === 'optgroup'){
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arr.push('<dt>'+ item.label +'</dt>');
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} else {
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arr.push('<dd lay-value="'+ item.value +'" class="'+ (value === item.value ? THIS : '') + (item.disabled ? (' '+DISABLED) : '') +'">'+ item.innerHTML +'</dd>');
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}
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});
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arr.length === 0 && arr.push('<dd lay-value="" class="'+ DISABLED +'">没有选项</dd>');
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return arr.join('');
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}(othis.find('*')) +'</dl>'
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,'</div>'].join(''));
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hasRender[0] && hasRender.remove(); //如果已经渲染，则Rerender
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othis.after(reElem);
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events.call(this, reElem, disabled, isSearch);
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});
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}
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//复选框/开关
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,checkbox: function(){
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var CLASS = {
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checkbox: ['layui-form-checkbox', 'layui-form-checked', 'checkbox']
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,_switch: ['layui-form-switch', 'layui-form-onswitch', 'switch']
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}
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,checks = elemForm.find('input[type=checkbox]')
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,events = function(reElem, RE_CLASS){
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var check = $(this);
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//勾选
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reElem.on('click', function(){
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var filter = check.attr('lay-filter') //获取过滤器
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,text = (check.attr('lay-text')||'').split('|');
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if(check[0].disabled) return;
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check[0].checked ? (
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check[0].checked = false
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,reElem.removeClass(RE_CLASS[1]).find('em').text(text[1])
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) : (
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check[0].checked = true
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,reElem.addClass(RE_CLASS[1]).find('em').text(text[0])
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);
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layui.event.call(check[0], MOD_NAME, RE_CLASS[2]+'('+ filter +')', {
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elem: check[0]
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,value: check[0].value
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,othis: reElem
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});
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});
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}
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checks.each(function(index, check){
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var othis = $(this), skin = othis.attr('lay-skin')
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,text = (othis.attr('lay-text')||'').split('|'), disabled = this.disabled;
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if(skin === 'switch') skin = '_'+skin;
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var RE_CLASS = CLASS[skin] || CLASS.checkbox;
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if(typeof othis.attr('lay-ignore') === 'string') return othis.show();
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//替代元素
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var hasRender = othis.next('.' + RE_CLASS[0]);
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var reElem = $(['<div class="layui-unselect '+ RE_CLASS[0] + (
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check.checked ? (' '+RE_CLASS[1]) : '') + (disabled ? ' layui-checkbox-disbaled '+DISABLED : '') +'" lay-skin="'+ (skin||'') +'">'
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,{
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_switch: '<em>'+ ((check.checked ? text[0] : text[1])||'') +'</em><i></i>'
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}[skin] || ((check.title.replace(/\s/g, '') ? ('<span>'+ check.title +'</span>') : '') +'<i class="layui-icon">'+ (skin ? '' : '') +'</i>')
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,'</div>'].join(''));
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hasRender[0] && hasRender.remove(); //如果已经渲染，则Rerender
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othis.after(reElem);
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events.call(this, reElem, RE_CLASS);
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});
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}
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//单选框
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,radio: function(){
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var CLASS = 'layui-form-radio', ICON = ['', '']
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,radios = elemForm.find('input[type=radio]')
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,events = function(reElem){
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var radio = $(this), ANIM = 'layui-anim-scaleSpring';
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reElem.on('click', function(){
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var name = radio[0].name, forms = radio.parents(ELEM);
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var filter = radio.attr('lay-filter'); //获取过滤器
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var sameRadio = forms.find('input[name='+ name.replace(/(\.|#|\[|\])/g, '\\$1') +']'); //找到相同name的兄弟
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if(radio[0].disabled) return;
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layui.each(sameRadio, function(){
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var next = $(this).next('.'+CLASS);
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this.checked = false;
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next.removeClass(CLASS+'ed');
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next.find('.layui-icon').removeClass(ANIM).html(ICON[1]);
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});
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radio[0].checked = true;
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reElem.addClass(CLASS+'ed');
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reElem.find('.layui-icon').addClass(ANIM).html(ICON[0]);
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layui.event.call(radio[0], MOD_NAME, 'radio('+ filter +')', {
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elem: radio[0]
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,value: radio[0].value
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,othis: reElem
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});
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});
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};
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radios.each(function(index, radio){
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var othis = $(this), hasRender = othis.next('.' + CLASS), disabled = this.disabled;
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if(typeof othis.attr('lay-ignore') === 'string') return othis.show();
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hasRender[0] && hasRender.remove(); //如果已经渲染，则Rerender
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//替代元素
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var reElem = $(['<div class="layui-unselect '+ CLASS + (radio.checked ? (' '+CLASS+'ed') : '') + (disabled ? ' layui-radio-disbaled '+DISABLED : '') +'">'
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,'<i class="layui-anim layui-icon">'+ ICON[radio.checked ? 0 : 1] +'</i>'
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,'<div>'+ function(){
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var title = radio.title || '';
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if(typeof othis.next().attr('lay-radio') === 'string'){
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title = othis.next().html();
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othis.next().remove();
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}
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return title
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}() +'</div>'
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,'</div>'].join(''));
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othis.after(reElem);
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events.call(this, reElem);
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});
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}
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};
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type ? (
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items[type] ? items[type]() : hint.error('不支持的'+ type + '表单渲染')
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) : layui.each(items, function(index, item){
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item();
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});
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return that;
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};
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//表单提交校验
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var submit = function(){
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var button = $(this), verify = form.config.verify, stop = null
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,DANGER = 'layui-form-danger', field = {} ,elem = button.parents(ELEM)
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,verifyElem = elem.find('*[lay-verify]') //获取需要校验的元素
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,formElem = button.parents('form')[0] //获取当前所在的form元素，如果存在的话
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,fieldElem = elem.find('input,select,textarea') //获取所有表单域
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,filter = button.attr('lay-filter'); //获取过滤器
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//开始校验
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layui.each(verifyElem, function(_, item){
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var othis = $(this)
|
||
,vers = othis.attr('lay-verify').split('|')
|
||
,verType = othis.attr('lay-verType') //提示方式
|
||
,value = othis.val();
|
||
|
||
othis.removeClass(DANGER);
|
||
layui.each(vers, function(_, thisVer){
|
||
var isTrue //是否命中校验
|
||
,errorText = '' //错误提示文本
|
||
,isFn = typeof verify[thisVer] === 'function';
|
||
|
||
//匹配验证规则
|
||
if(verify[thisVer]){
|
||
var isTrue = isFn ? errorText = verify[thisVer](value, item) : !verify[thisVer][0].test(value);
|
||
errorText = errorText || verify[thisVer][1];
|
||
|
||
//如果是必填项或者非空命中校验，则阻止提交，弹出提示
|
||
if(isTrue){
|
||
//提示层风格
|
||
if(verType === 'tips'){
|
||
layer.tips(errorText, function(){
|
||
if(typeof othis.attr('lay-ignore') !== 'string'){
|
||
if(item.tagName.toLowerCase() === 'select' || /^checkbox|radio$/.test(item.type)){
|
||
return othis.next();
|
||
}
|
||
}
|
||
return othis;
|
||
}(), {tips: 1});
|
||
} else if(verType === 'alert') {
|
||
layer.alert(errorText, {title: '提示', shadeClose: true});
|
||
} else {
|
||
layer.msg(errorText, {icon: 5, shift: 6});
|
||
}
|
||
if(!device.android && !device.ios) item.focus(); //非移动设备自动定位焦点
|
||
othis.addClass(DANGER);
|
||
return stop = true;
|
||
}
|
||
}
|
||
});
|
||
if(stop) return stop;
|
||
});
|
||
|
||
if(stop) return false;
|
||
|
||
var nameIndex = {}; //数组 name 索引
|
||
layui.each(fieldElem, function(_, item){
|
||
item.name = (item.name || '').replace(/^\s*|\s*&/, '');
|
||
|
||
if(!item.name) return;
|
||
|
||
//用于支持数组 name
|
||
if(/^.*\[\]$/.test(item.name)){
|
||
var key = item.name.match(/^(.*)\[\]$/g)[0];
|
||
nameIndex[key] = nameIndex[key] | 0;
|
||
item.name = item.name.replace(/^(.*)\[\]$/, '$1['+ (nameIndex[key]++) +']');
|
||
}
|
||
|
||
if(/^checkbox|radio$/.test(item.type) && !item.checked) return;
|
||
field[item.name] = item.value;
|
||
});
|
||
|
||
//获取字段
|
||
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);
|
||
|
||
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);
|
||
});
|
||
|
||
|