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  • jquery ui中的dialog,官网上经典的例子

    jquery ui中的dialog,官网上经典的例子

     

    jquery ui中dialog和easy ui中的dialog很像,但是最近用到的时候全然没有印象,一段时间不用就忘记了,这篇随笔介绍一下这个控件。

    1.实例

    官网源代码中给出了一些实例,首先看看实例是什么样子的。

    a.默认功能

    也是最简单的应用,也就是打开一个对话框,代码如下

    复制代码
    <!doctype html>
    <html lang="en">
    <head>
        <meta charset="utf-8">
        <title>jQuery UI Dialog - Default functionality</title>
        <link rel="stylesheet" href="../../themes/base/all.css">
        <script src="../../external/jquery/jquery.js"></script>
        <script src="../../ui/core.js"></script>
        <script src="../../ui/widget.js"></script>
        <script src="../../ui/mouse.js"></script>
        <script src="../../ui/draggable.js"></script>
        <script src="../../ui/position.js"></script>
        <script src="../../ui/resizable.js"></script>
        <script src="../../ui/button.js"></script>
        <script src="../../ui/dialog.js"></script>
        <link rel="stylesheet" href="../demos.css">
        <script>
        $(function() {
            $( "#dialog" ).dialog();
        });
        </script>
    </head>
    <body>
    
    <div id="dialog" title="Basic dialog">
        <p>This is the default dialog which is useful for displaying information. The dialog window can be moved, resized and closed with the 'x' icon.</p>
    </div>
    
    <div class="demo-description">
    <p>The basic dialog window is an overlay positioned within the viewport and is protected from page content (like select elements) shining through with an iframe.  It has a title bar and a content area, and can be moved, resized and closed with the 'x' icon by default.</p>
    </div>
    </body>
    </html>
    复制代码

    引用了一堆的js文件,这个与下载的时候选择的类型有关,可以选择All jQuery UI Downloads,也可以在当前页面选择要用到的组件下载。关键代码$( "#dialog" ).dialog();,加载页面的时候弹出一个对话框。效果如下图1


    图1

    b.模态对话框

    关键代码如下:

    复制代码
        $(function() {
            $( "#dialog-message" ).dialog({
                modal: true,
                buttons: {
                    Ok: function() {
                        $( this ).dialog( "close" );
                    }
                }
            });
        });
    复制代码

    作用是弹出一个模态对话框,mode:true,其实就是后面不能回到后面的父页面,除非关闭当前的对话框。在对话框后面加了一个OK关闭按钮,效果如下图2


    图2

    c.确认对话框

    关键代码如下:

    复制代码
        $(function() {
            $( "#dialog-confirm" ).dialog({
                resizable: false,
                height: "auto",
                 400,
                modal: true,
                buttons: {
                    "Delete all items": function() {
                //这里可以加入一些操作 $( this ).dialog( "close" ); }, Cancel: function() { $( this ).dialog( "close" ); } } }); });
    复制代码

    加了两个按钮,一个确认,一个取消,可以分别做一些操作,其实也不限于这两个按钮,如果需要的话可以在下面添加任意多个按钮,实现任意多的功能。效果如下如3


    图3

    带form功能的对话框

    这个例子有些复杂,可以实现验证,请求等功能,关键代码如下

    复制代码
    <!doctype html>
    <html lang="en">
    <head>
        <meta charset="utf-8">
        <title>jQuery UI Dialog - Modal form</title>
        <link rel="stylesheet" href="../../themes/base/all.css">
        <script src="../../external/jquery/jquery.js"></script>
        <script src="../../ui/core.js"></script>
        <script src="../../ui/widget.js"></script>
        <script src="../../ui/mouse.js"></script>
        <script src="../../ui/button.js"></script>
        <script src="../../ui/draggable.js"></script>
        <script src="../../ui/position.js"></script>
        <script src="../../ui/resizable.js"></script>
        <script src="../../ui/dialog.js"></script>
        <script src="../../ui/effect.js"></script>
        <link rel="stylesheet" href="../demos.css">
        <style>
            label, input { display:block; }
            input.text { margin-bottom:12px; 95%; padding: .4em; }
            fieldset { padding:0; border:0; margin-top:25px; }
            h1 { font-size: 1.2em; margin: .6em 0; }
            div#users-contain {  350px; margin: 20px 0; }
            div#users-contain table { margin: 1em 0; border-collapse: collapse;  100%; }
            div#users-contain table td, div#users-contain table th { border: 1px solid #eee; padding: .6em 10px; text-align: left; }
            .ui-dialog .ui-state-error { padding: .3em; }
            .validateTips { border: 1px solid transparent; padding: 0.3em; }
        </style>
        <script>
        $(function() {
            var dialog, form,
    
                // From http://www.whatwg.org/specs/web-apps/current-work/multipage/states-of-the-type-attribute.html#e-mail-state-%28type=email%29
                emailRegex = /^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/,
                name = $( "#name" ),
                email = $( "#email" ),
                password = $( "#password" ),
                allFields = $( [] ).add( name ).add( email ).add( password ),
                tips = $( ".validateTips" );
    
            function updateTips( t ) {
                tips
                    .text( t )
                    .addClass( "ui-state-highlight" );
                setTimeout(function() {
                    tips.removeClass( "ui-state-highlight", 1500 );
                }, 500 );
            }
    
            function checkLength( o, n, min, max ) {
                if ( o.val().length > max || o.val().length < min ) {
                    o.addClass( "ui-state-error" );
                    updateTips( "Length of " + n + " must be between " +
                        min + " and " + max + "." );
                    return false;
                } else {
                    return true;
                }
            }
    
            function checkRegexp( o, regexp, n ) {
                if ( !( regexp.test( o.val() ) ) ) {
                    o.addClass( "ui-state-error" );
                    updateTips( n );
                    return false;
                } else {
                    return true;
                }
            }
    
            function addUser() {
                var valid = true;
                allFields.removeClass( "ui-state-error" );
    
                valid = valid && checkLength( name, "username", 3, 16 );
                valid = valid && checkLength( email, "email", 6, 80 );
                valid = valid && checkLength( password, "password", 5, 16 );
    
                valid = valid && checkRegexp( name, /^[a-z]([0-9a-z_s])+$/i, "Username may consist of a-z, 0-9, underscores, spaces and must begin with a letter." );
                valid = valid && checkRegexp( email, emailRegex, "eg. ui@jquery.com" );
                valid = valid && checkRegexp( password, /^([0-9a-zA-Z])+$/, "Password field only allow : a-z 0-9" );
    
                if ( valid ) {
                    $( "#users tbody" ).append( "<tr>" +
                        "<td>" + name.val() + "</td>" +
                        "<td>" + email.val() + "</td>" +
                        "<td>" + password.val() + "</td>" +
                    "</tr>" );
                    dialog.dialog( "close" );
                }
                return valid;
            }
    
            dialog = $( "#dialog-form" ).dialog({
                autoOpen: false,
                height: 400,
                 350,
                modal: true,
                buttons: {
                    "Create an account": addUser,
                    Cancel: function() {
                        dialog.dialog( "close" );
                    }
                },
                close: function() {
                    form[ 0 ].reset();
                    allFields.removeClass( "ui-state-error" );
                }
            });
    
            form = dialog.find( "form" ).on( "submit", function( event ) {
                event.preventDefault();
                addUser();
            });
    
            $( "#create-user" ).button().on( "click", function() {
                dialog.dialog( "open" );
            });
        });
        </script>
    </head>
    <body>
    
    <div id="dialog-form" title="Create new user">
        <p class="validateTips">All form fields are required.</p>
    
        <form>
            <fieldset>
                <label for="name">Name</label>
                <input type="text" name="name" id="name" value="Jane Smith" class="text ui-widget-content ui-corner-all">
                <label for="email">Email</label>
                <input type="text" name="email" id="email" value="jane@smith.com" class="text ui-widget-content ui-corner-all">
                <label for="password">Password</label>
                <input type="password" name="password" id="password" value="xxxxxxx" class="text ui-widget-content ui-corner-all">
    
                <!-- Allow form submission with keyboard without duplicating the dialog button -->
                <input type="submit" tabindex="-1" style="position:absolute; top:-1000px">
            </fieldset>
        </form>
    </div>
    
    
    <div id="users-contain" class="ui-widget">
        <h1>Existing Users:</h1>
        <table id="users" class="ui-widget ui-widget-content">
            <thead>
                <tr class="ui-widget-header ">
                    <th>Name</th>
                    <th>Email</th>
                    <th>Password</th>
                </tr>
            </thead>
            <tbody>
                <tr>
                    <td>John Doe</td>
                    <td>john.doe@example.com</td>
                    <td>johndoe1</td>
                </tr>
            </tbody>
        </table>
    </div>
    <button id="create-user">Create new user</button>
    
    <div class="demo-description">
    <p>Use a modal dialog to require that the user enter data during a multi-step process.  Embed form markup in the content area, set the <code>modal</code> option to true, and specify primary and secondary user actions with the <code>buttons</code> option.</p>
    </div>
    </body>
    </html>
    复制代码

    这个是带请求功能的对话框,代码很严谨

    var dialog, form,
    emailRegex = /^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/,
    name = $( "#name" ),
    email = $( "#email" ),
    password = $( "#password" ),
    allFields = $( [] ).add( name ).add( email ).add( password ),
    tips = $( ".validateTips" );

    定义元素变量,要用到的验证,allFields = $( [] ).add( name ).add( email ).add( password ),这个用来把要用到的变量加到集合里面,用来添加和删除css样式,后面会用到的,很巧妙,$( [] )这个写法可以把多个元素添加到一个集合中。

    function updateTips( t ) {
    tips
    .text( t )
    .addClass( "ui-state-highlight" );
    setTimeout(function() {
    tips.removeClass( "ui-state-highlight", 1500 );
    }, 500 );
    }

    给元素添加文字和css样式,并且在500毫秒内移除这个样式,不明白.removeClass( "ui-state-highlight", 1500 )后面一个参数1500是什么意思

    function checkLength( o, n, min, max ) {
    if ( o.val().length > max || o.val().length < min ) {
    o.addClass( "ui-state-error" );
    updateTips( "Length of " + n + " must be between " +
    min + " and " + max + "." );
    return false;
    } else {
    return true;
    }
    }

    检查输入文字的长短,4个参数分别是元素本身,元素名称,最小长度,最大长度。

    function checkRegexp( o, regexp, n ) {
    if ( !( regexp.test( o.val() ) ) ) {
    o.addClass( "ui-state-error" );
    updateTips( n );
    return false;
    } else {
    return true;
    }
    }

    用正则表达式检查元素是否符合规则,3个参数,元素本身,正则表达式,错误提示。

    function addUser() {
    var valid = true;
    allFields.removeClass( "ui-state-error" );

    valid = valid && checkLength( name, "username", 3, 16 );
    valid = valid && checkLength( email, "email", 6, 80 );
    valid = valid && checkLength( password, "password", 5, 16 );

    valid = valid && checkRegexp( name, /^[a-z]([0-9a-z_s])+$/i, "Username may consist of a-z, 0-9, underscores, spaces and must begin with a letter." );
    valid = valid && checkRegexp( email, emailRegex, "eg. ui@jquery.com" );
    valid = valid && checkRegexp( password, /^([0-9a-zA-Z])+$/, "Password field only allow : a-z 0-9" );

    if ( valid ) {
    $( "#users tbody" ).append( "<tr>" +
    "<td>" + name.val() + "</td>" +
    "<td>" + email.val() + "</td>" +
    "<td>" + password.val() + "</td>" +
    "</tr>" );
    dialog.dialog( "close" );
    }
    return valid;
    }

    添加用户的方法,验证方法valid = valid && 这个用的很巧妙,连续利用了&&操作,这里的写法非常的灵活也很巧妙。在这里可以实现具体的功能,也可以在form里面添加action,form到具体页面中操作。

    dialog = $( "#dialog-form" ).dialog({
    autoOpen: false,
    height: 400,
    350,
    modal: true,
    buttons: {
    "Create an account": addUser,
    Cancel: function() {
    dialog.dialog( "close" );
    }
    },
    close: function() {
    form[ 0 ].reset();
    allFields.removeClass( "ui-state-error" );
    }
    });

    这里才是最主要的功能,一个定义一个对话框,其中有个2个按钮,一个是添加一个账号,访问addUser函数,一个是取消,直接定义关闭对话框,最后还定义了默认的关闭功能,form中清除元素的值,清除错误提示。

    form = dialog.find( "form" ).on( "submit", function( event ) {
    event.preventDefault();
    addUser();
    });

    定义form,其实就是页面中的form,还定义了提交时请求动作,首先取消默认事件,然后执行addUser。

    $( "#create-user" ).button().on( "click", function() {
    dialog.dialog( "open" );
    });

    给添加用户按钮绑定事件,这里绑定事件没有直接.click,也没有live,也没有trigger,on是jquery官方推荐的一个绑定函数方法。注意这里不是页面加载的时候就显示对话框,而是点击添加账号的时候弹出这个对话框,所以要先定义这个对话框“dialog = $( "#dialog-form" ).dialog({”,点击添加按钮的时候弹出对话框“dialog.dialog( "open" );”。

    页面截图如下图4


    图4

    点击添加用户弹出对话框如图5


    图5

    元素验证失败时截图如图6


    图6

    这个例子很经典!

    d.带动画功能的对话框

    关键代码如下:

    复制代码
        $(function() {
            $( "#dialog" ).dialog({
                autoOpen: false,
                show: {
                    effect: "blind",
                    duration: 1000
                },
                hide: {
                    effect: "explode",
                    duration: 1000
                }
            });
    
            $( "#opener" ).click(function() {
                $( "#dialog" ).dialog( "open" );
            });
        });
    复制代码

    定义显示和影藏效果,effect: "blind":打开时时百叶窗效果,从上到下显示,effect: "explode"关闭时是爆发,碎片效果。

    百叶窗效果如下图7


    图7

    爆炸效果如图8


    图8

    同上,注意这里不是页面加载的时候就显示对话框,而是点击添加账号的时候弹出这个对话框,所以要先定义这个对话框“$( "#dialog" ).dialog({,”,点击添加按钮的时候弹出对话框“dialog.dialog( "open" );”

    2.属性,事件,方法

    关于属性,事件和方法内容很多,可以查看中文文档http://jqueryui.net/dialog/

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  • 原文地址:https://www.cnblogs.com/keyi/p/5939654.html
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