May
24

带即时验证的jQuery表单插件

Categories: Js/AJAX | Tags: , | Views: 2,115

 

jQuery已经是异常强大和方便了, 确实也如它所说,它改变着人们的javascript的编程习惯.

jQuery的插件也已经很多了很强大了,但有时候强大并不代表着好用.根据自己的需求写的插件更适合自己的口味.

先看一下这个插件的效果图:

其中的showAert函数,在稍后贴出, 所用的jQuery的版本是最新的1.3

form1 form2
form3 form4

 插件代码:

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// JavaScript Document
/*
 *
 * Form - add a form with instant data validation
 *
 * Copyright (c) 2009 Pwwang (http://pwwang.com)
 * 
 * $Date: 2009-05-24 $
 * $Author: Pwwang $
 * 
 */
$.fn.addForm = function(options){    
    var settings = {
        formid: 'form1',
        formname: 'form1',
        formaction: '?',
        formmethod: 'post',
        formclass: '',
        formstyle: '',
        formenctype:'text/plain',
        formboxclass: '',     // text class
        formbtnclass: '',     // button, reset, submit class
        formradioclass: '',   // checkbox, radio class
        formlblclass: '',     // 最左边的 label class
        formhntclass: '',     // 右边的提示 hint class
        formihntclass: '',    // 输入错误时提示的 hint class
        formvhntclass: '',    // 输入正确时提示的 hint class
        formareaclass: ''     // textarea class
    };
    if(options){
        $.extend(settings, options);
    }
    this.html(
        '<form     id="' + settings.formid + 
        '" name="' + settings.formname + 
        '" action="' + settings.formaction + 
        '" method="' + settings.formmethod + 
        '" class="' + settings.formclass + 
        '" style="' + settings.formstyle + 
        '" enctype="' + settings.formenctype + 
        '"><table width="100%"><tr><td colspan=3><input id="' + 
        settings.formid + 'boxclass" type=hidden value="' + 
        settings.formboxclass + '" /><input id="' + 
        settings.formid + 'btnclass" type=hidden value="' + 
        settings.formbtnclass + '" /><input id="' + 
        settings.formid + 'lblclass" type=hidden value="' + 
        settings.formlblclass + '" /><input id="' + 
        settings.formid + 'radioclass" type=hidden value="' + 
        settings.formradioclass + '" /><input id="' + 
        settings.formid + 'hntclass" type=hidden value="' + 
        settings.formhntclass + '" /><input id="' + 
        settings.formid + 'ihntclass" type=hidden value="' + 
        settings.formihntclass + '" /><input id="' + 
        settings.formid + 'vhntclass" type=hidden value="' + 
        settings.formvhntclass + '" /><input id="' + 
        settings.formid + 'areaclass" type=hidden value="' +        // 储存各个class
        settings.formareaclass + '" /><input id="' +                // 储存输入错误的field的id
        settings.formid + 'invalidfield" type=hidden /></td></tr></table></form>');
    $('#'+settings.formid).submit(function(){
        var invalidfield = $('#'+settings.formid+'invalidfield').val();    
        if(invalidfield == '') return true; // 提交判断
        var invalidfields = invalidfield.split('#');
        for(var i=1; i<invalidfields.length; i++){
            $('#'+invalidfields[i]).focus();
            $('#'+invalidfields[i]).blur();
        }                     
        $.showAlert({alertcontent:'text:<br>请将资料填写完整.',alertautoclose:30});
        return false;
    });    
    return this;
};
 
$.fn.addField = function(options){
    var settings = {
        fieldlabel: '',
        fieldid: 'textfield1',
        fieldname: '',
        fieldclass: '',
        fieldstyle: '',
        fieldtype: 'text',
        fielddisabled: false,
        fieldreadonly: false,
        fieldvalue: '',
        fieldhint: '',
        fieldvalidexp: '',
        fieldvalidhint: '填写正确',
        fieldinvalidhint: '填写错误',
        fieldmemo: '',
        fieldafterfield: ''
    };    
    if(options){
        $.extend(settings, options);
    }
    if(settings.fieldname == '') settings.fieldname = settings.fieldid;
    var disabled = settings.fielddisabled?' disabled':' ';
    var readonly = settings.fieldreadonly?' readonly':' ';
    var formid = $('#'+$(this).attr('id')+'>form').attr('id');
    if(settings.fieldtype == 'text'){
        if(!settings.fieldclass) settings.fieldclass = $('#'+formid+'boxclass').val();
    } else if(settings.fieldtype == 'button' || settings.fieldtype == 'submit' || settings.fieldtype == 'reset'){
        if(!settings.fieldclass) settings.fieldclass = $('#'+formid+'btnclass').val();
    }
    var lblclass = $('#'+formid+'lblclass').val();
    var hntclass = $('#'+formid+'hntclass').val();
    var ihntclass = $('#'+formid+'ihntclass').val();
    var vhntclass = $('#'+formid+'vhntclass').val();
    if(settings.fieldafterfield == ''){    // 添加为一行
        $('#'+formid+'>table').append(
            '<tr><td class="' + lblclass + '">' + settings.fieldlabel + '</td><td>' + 
            '<input id="' + settings.fieldid +
            '" name="' + settings.fieldname + 
            '" class="' + settings.fieldclass +
            '" style="' + settings.fieldstyle +
            '" type="' + settings.fieldtype + '"' +
            disabled + readonly +
            ' value="' + settings.fieldvalue +
            '" ' + settings.fieldmemo + ' /></td><td class="' +
            hntclass + '">' + settings.fieldhint + 
            '</td></tr>');
    } else {  //添加到某一个field后面
        $('#'+settings.fieldafterfield).after(
            '  <input id="' + settings.fieldid +
            '" name="' + settings.fieldname + 
            '" class="' + settings.fieldclass +
            '" style="' + settings.fieldstyle +
            '" type="' + settings.fieldtype + '"' +
            disabled + readonly +
            ' value="' + settings.fieldvalue +
            '" ' + settings.fieldmemo + ' />');            
    }
    var hnttd = $('#'+settings.fieldid).parent().next();
    $('#'+settings.fieldid).blur(function(){
        if(settings.fieldvalidexp != ''){
            if(!eval(settings.fieldvalidexp).test($(this).val())){
                hnttd.html(settings.fieldinvalidhint);
                hnttd.removeClass().addClass(ihntclass);
                if(!eval('/#'+settings.fieldid+'(?:$|#)/').test($('#'+formid+'invalidfield').val())){
                    $('#'+formid+'invalidfield').val($('#'+formid+'invalidfield').val()+'#'+settings.fieldid);
                }
            } else { 
                hnttd.html(settings.fieldvalidhint);
                hnttd.removeClass().addClass(vhntclass);    
                $('#'+formid+'invalidfield').val($('#'+formid+'invalidfield').val().replace(eval('/(#'+settings.fieldid+')($|#)/'),'$2'));
            }
        }
    });
    $('#'+settings.fieldid).focus(function(){
        if(settings.fieldvalidexp != ''){
            hnttd.html(settings.fieldhint);
            hnttd.removeClass().addClass(hntclass);
        }
    });
    return this;
};
 
$.fn.addRadio = function(options){  // 也可以用来添加checkbox
    var settings = {
        fieldlabel: '',
        fieldid: 'radio1',
        fieldname: '',
        fieldclass: '',
        fieldstyle: '',
        fieldtype: 'radio',
        fieldchecked: false,
        fielddisabled: false,
        fieldreadonly: false,
        fieldvalue: '',
        fieldhint: '',
        fieldtext: '',
        fieldmemo: '',
        fieldafterfield: ''
    };    
    if(options){
        $.extend(settings, options);
    }
    if(settings.fieldname == '') settings.fieldname = settings.fieldid;
    var disabled = settings.fielddisabled?' disabled':' ';
    var readonly = settings.fieldreadonly?' readonly':' ';
    var checked = settings.fieldchecked?' checked':' ';
    var formid = $('#'+$(this).attr('id')+'>form').attr('id');
    if(!settings.fieldclass) settings.fieldclass = $('#'+formid+'radioclass').val();
    var lblclass = $('#'+formid+'lblclass').val();
    var hntclass = $('#'+formid+'hntclass').val();
    if(settings.fieldafterfield == ''){    // 添加为一行
        $('#'+formid+'>table').append(
            '<tr><td class="' + lblclass + '">' + settings.fieldlabel + '</td><td>' + 
            '<a href="javascript:;" id="'+settings.fieldid+'a"><input id="' + settings.fieldid +
            '" name="' + settings.fieldname + 
            '" class="' + settings.fieldclass +
            '" style="' + settings.fieldstyle +
            '" type="' + settings.fieldtype + '"' +
            disabled + readonly + checked +
            ' value="' + settings.fieldvalue +
            '" ' + settings.fieldmemo + ' />'+settings.fieldtext+'</a></td><td class="' +
            hntclass + '">' + settings.fieldhint + 
            '</td></tr>');
    } else {  //添加到某一个field后面
        $('#'+settings.fieldafterfield+'a').after(
            '  <a href="javascript:;" id="'+settings.fieldid+'a"><input id="' + settings.fieldid +
            '" name="' + settings.fieldname + 
            '" class="' + settings.fieldclass +
            '" style="' + settings.fieldstyle +
            '" type="' + settings.fieldtype + '"' +
            disabled + readonly + checked +
            ' value="' + settings.fieldvalue +
            '" ' + settings.fieldmemo + ' />'+settings.fieldtext+'</a>');            
    }
    $('#'+settings.fieldid+'a').click(function(e){    
        if(settings.fieldtype == 'radio'){
            if(!$('#'+settings.fieldid).attr('checked')){
                $('#'+settings.fieldid).attr('checked','checked');
            }
        } else if(e.target == this){
            if($('#'+settings.fieldid).attr('checked')){
                $('#'+settings.fieldid).removeAttr('checked');
            } else {
                $('#'+settings.fieldid).attr('checked','checked');
            }                
        }
    });
    return this;
};
 
$.fn.addTextarea = function(options){
    var settings = {
        fieldlabel: '',
        fieldid: 'textarea1',
        fieldname: '',
        fieldclass: '',
        fieldstyle: '',
        fielddisabled: false,
        fieldreadonly: false,
        fieldvalue: '',
        fieldhint: '',
        fieldvalidexp: '',
        fieldvalidhint: '填写正确',
        fieldinvalidhint: '填写错误',
        fieldmemo: '',
        fieldafterfield: ''
    };    
    if(options){
        $.extend(settings, options);
    }
    if(settings.fieldname == '') settings.fieldname = settings.fieldid;
    var disabled = settings.fielddisabled?' disabled':' ';
    var readonly = settings.fieldreadonly?' readonly':' ';
    var formid = $('#'+$(this).attr('id')+'>form').attr('id');
    if(!settings.fieldclass) settings.fieldclass = $('#'+formid+'areaclass').val();
    var lblclass = $('#'+formid+'lblclass').val();
    var hntclass = $('#'+formid+'hntclass').val();
    var ihntclass = $('#'+formid+'ihntclass').val();
    var vhntclass = $('#'+formid+'vhntclass').val();
    if(settings.fieldafterfield == ''){
        $('#'+formid+'>table').append(
            '<tr><td class="' + lblclass + '" style="vertical-align:middle">' + settings.fieldlabel + '</td><td>' + 
            '<textarea id="' + settings.fieldid +
            '" name="' + settings.fieldname + 
            '" class="' + settings.fieldclass +
            '" style="' + settings.fieldstyle + '"' +
            disabled + readonly + settings.fieldmemo + 
            '>' + settings.fieldvalue +
            '</textarea></td><td class="' +
            hntclass + '" style="vertical-align:middle">' + settings.fieldhint + 
            '</td></tr>');
    } else {
        $('#'+settings.fieldafterfield).after(
            '<textarea id="' + settings.fieldid +
            '" name="' + settings.fieldname + 
            '" class="' + settings.fieldclass +
            '" style="' + settings.fieldstyle +
            disabled + readonly + settings.fieldmemo + 
            '>' + settings.fieldvalue +
            '</textarea>');            
    }
    var hnttd = $('#'+settings.fieldid).parent().next();
    $('#'+settings.fieldid).blur(function(){                              
        if(settings.fieldvalidexp != ''){
            if(!eval(settings.fieldvalidexp).test($(this).val())){
                hnttd.html(settings.fieldinvalidhint);
                hnttd.removeClass().addClass(ihntclass);
                if(!eval('/#'+settings.fieldid+'(?:$|#)/').test($('#'+formid+'invalidfield').val())){
                    $('#'+formid+'invalidfield').val($('#'+formid+'invalidfield').val()+'#'+settings.fieldid);
                }
            } else {
                hnttd.html(settings.fieldvalidhint);
                hnttd.removeClass().addClass(vhntclass);    
                $('#'+formid+'invalidfield').val($('#'+formid+'invalidfield').val().replace(eval('/(#'+settings.fieldid+')($|#)/'),'$2'));
            }
        }
    });
    $('#'+settings.fieldid).focus(function(){
        if(settings.fieldvalidexp != ''){
            hnttd.html(settings.fieldhint);
            hnttd.removeClass().addClass(hntclass);
        }
    });
    return this;
};
 
$.fn.addPass = function(options){
    var settings = {
        fieldlabel: '确认密码:',
        fieldid: 'password1',
        fieldname: '',
        fieldclass: '',
        fieldstyle: '',
        fieldtype: 'password',
        fielddisabled: false,
        fieldreadonly: false,
        fieldvalue: '',
        fieldhint: '请再一次输入密码',
        fieldpassfield: '',
        fieldvalidhint: '填写正确',
        fieldinvalidhint: '两次输入的密码不一致或填写错误',
        fieldmemo: ''
    };
    if(options){
        $.extend(settings, options);
    }
    if(settings.fieldname == '') settings.fieldname = settings.fieldid;
    var disabled = settings.fielddisabled?' disabled':' ';
    var readonly = settings.fieldreadonly?' readonly':' ';
    var formid = $('#'+$(this).attr('id')+'>form').attr('id');
    if(!settings.fieldclass) settings.fieldclass = $('#'+formid+'boxclass').val();
    var lblclass = $('#'+formid+'lblclass').val();
    var hntclass = $('#'+formid+'hntclass').val();
    var ihntclass = $('#'+formid+'ihntclass').val();
    var vhntclass = $('#'+formid+'vhntclass').val();
    $('#'+formid+'>table').append(
        '<tr><td class="' + lblclass + '">' + settings.fieldlabel + '</td><td>' + 
        '<input id="' + settings.fieldid +
        '" name="' + settings.fieldname + 
        '" class="' + settings.fieldclass +
        '" style="' + settings.fieldstyle +
        '" type="' + settings.fieldtype + '"' +
        disabled + readonly +
        ' value="' + settings.fieldvalue +
        '" ' + settings.fieldmemo + ' /></td><td class="' +
        hntclass + '">' + settings.fieldhint + 
        '</td></tr>');
    var hnttd = $('#'+settings.fieldid).parent().next();
    $('#'+settings.fieldid).blur(function(){
        if($('#'+settings.fieldpassfield).val() != $(this).val() || $(this).val() == ''){
            hnttd.html(settings.fieldinvalidhint);
            hnttd.removeClass().addClass(ihntclass);
            if(!eval('/#'+settings.fieldid+'(?:$|#)/').test($('#'+formid+'invalidfield').val())){
                $('#'+formid+'invalidfield').val($('#'+formid+'invalidfield').val()+'#'+settings.fieldid);
            }
        } else {
            hnttd.html(settings.fieldvalidhint);
            hnttd.removeClass().addClass(vhntclass);    
            $('#'+formid+'invalidfield').val($('#'+formid+'invalidfield').val().replace(eval('/(#'+settings.fieldid+')($|#)/'),'$2'));
        }
    });
    $('#'+settings.fieldid).focus(function(){
        hnttd.html(settings.fieldhint);
        hnttd.removeClass().addClass(hntclass);
    });
    return this;
}

调用代码:

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    $('#formdiv').addForm({
        formid: 'regform',
        formboxclass: 'inputbox',
        formbtnclass: 'inputbtn',
        formlblclass: 'inputlbl',
        formhntclass: 'inputhnt',
        formihntclass: 'inputihnt',
        formvhntclass: 'inputvhnt',
        formareaclass: 'inputarea'
    }).addField({
        fieldid:'userid',
        fieldlabel:'登录名:',
        fieldstyle: 'width:102px',
        fieldhint: '5-10个英文字母,数字和下划线,必填',
        fieldvalidexp: '/^[0-9a-z_]{5,10}$/',
        fieldclass: 'inputrequired'
    }).addField({
        fieldid:'usercheck',
        fieldtype: 'button',
        fieldafterfield: 'userid',
        fieldvalue: ' 检测 ',
        fieldmemo: 'onclick=$.showAlert({alertcontent:"iframe:checkuser.php?userid="+$("#userid").val()});'
    }).addField({
        fieldid:'userpass',
        fieldlabel:'密码:',
        fieldtype: 'password',
        fieldhint: '由5-20个字符组成,必填',
        fieldvalidexp: '/^.{5,20}$/',
        fieldclass: 'inputrequired'
    }).addPass({
        fieldid:'userpass1',
        fieldlabel:'确认密码:',
        fieldtype: 'password',
        fieldclass: 'inputrequired',
        fieldpassfield: 'userpass'
    }).addField({
        fieldid:'username',
        fieldlabel:'姓名:',
        fieldhint: '由2-10个汉字组成,必填',
        fieldvalidexp: '/^[\u4E00-\u9FA5]{2,10}$/',
        fieldclass: 'inputrequired'
    }).addField({
        fieldid:'userphone',
        fieldlabel:'电话:',
        fieldhint: '由20以内数字和-组成,必填',
        fieldvalidexp: '/^[0-9\-]{1,20}$/',
        fieldclass: 'inputrequired'
    }).addRadio({
        fieldid:'userradio',
        fieldlabel:'选择:',
        fieldchecked: false,
        fieldtext: '选择1'
    }).addRadio({
        fieldid:'userradio1',
        fieldafterfield: 'userradio',
        fieldname: 'userradio',
        fieldchecked: true,
        fieldtext: '选择2'
    }).addRadio({
        fieldid:'userradio2',
        fieldafterfield:'userradio1',
        fieldname: 'userradio',
        fieldchecked: false,
        fieldtext: '选择3'
    }).addRadio({
        fieldid:'usercheckbox',
        fieldlabel: '多选',
        fieldtype: 'checkbox',
        fieldname: 'usercheck',
        fieldchecked: true,
        fieldtext: '多选'
    }).addField({
        fieldid:'useraddress',
        fieldlabel:'地址:',
        fieldhint: '由100以内字符组成,选填',
        fieldvalidexp: '/^.{0,100}$/'
    }).addTextarea({
        fieldid:'usermemo',
        fieldlabel:'备注:'
    }).addField({
        fieldid: 'submit',
        fieldtype: 'submit',
        fieldvalue: ' 提交 '    ,
        fieldstyle: 'margin-top:10px;'
    }).addField({
        fieldid: 'reset',
        fieldtype: 'reset',
        fieldvalue: ' 重置 ',
        fieldafterfield: 'submit',
        fieldstyle: 'margin-top:10px;'
    });
这篇文章来自 迷途知返(PWWANG.COM), 转载请注明出处。 版权说明

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