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  • [置顶] ZK高级特性:Style定制与客户端集成

    1、ZK与传统MVC框架的集成

    由于ZK应用本质上也是基于标准Web技术Servlet框架,因此与其它MVC框架的集成没有什么特别的,

    以一个典型场景为例——为一个现有的Web项目(前端采用WebWork+Freemarker+prototype)引入ZK技术开发新的页面和模块,主要集成工作包括:

    • 页面集成方式1:在freemarker中嵌入iframe指向zul页面;
    • 页面集成方式2:prototype打开新页签时url参数指向zul页面;
    • 参数传递方式1:url后面跟参数;
    • 参数传递方式2:WebWork的action中request.setAttribute,然后服务端forward转到zul页面;
    • 参数传递方式3:WebWork的action中session.setAttribute,然后返回页面中iframe指向zul页面;

    2、CSS样式定制

    2.1、概述

    ZK应用对于浏览器来说就是标准的Web页面,我们在ZUL页面或java代码中创建的每一个ZK组件在运行时都会被ZK引擎渲染生成标准的HTML+CSS+JavaScript代码,

    并且ZK允许我们对所有组件的样式进行定制,例如如下代码就可以将button按钮组件的样式从灰色背景图圆角改变成蓝底白字直角的样子:

    /* 覆盖默认按钮样式,实现蓝底白字按钮 */
    .blue-button .z-button-tl,.blue-button .z-button-tr,.blue-button .z-button-bl,.blue-button
             .z-button-br,.blue-button .z-button-tm,.blue-button .z-button-bm,.blue-button .z-button-cl,.blue-button
             .z-button-cr,.blue-button .z-button-cm {
         background-image : none ;
         background-color : #2777C3 ;
         color : #ffffff ;
    }
     
    <button label= "查询" onClick= "@command('query')" sclass= "blue-button" width= "65px" />
    <button label= "重置" onClick= "@command('reset')" sclass= "blue-button" width= "65px" />


    通过Firebug等工具查看ZK页面的Dom可以方便的获得某个页面元素对应的样式是被那个zclass定义的,然后就可以有针对性的精确修改其样式;

    2.2、三种定制方式

    具体的有三种方式:

    • 覆盖zclass:在页面<style>区域添加与ZK组件zclass同名的class,然后覆盖某些样式属性,这样就可以对该页面范围内的所有该组件样式进行修改;
    • 定义sclass:像上面代码示例中那样定义自己的class,然后在需要应用的组件中指定sclass属性即可;
    • 直接在组件的style字段中指定样式,例如

      < label value = "红色粗体字" style = "color:red;font-weight:bold" />

    2.3、更多示例

    蓝底白字的简约风格菜单
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    /* 菜单样式    */
    .menuItem{ text-decoration:none;color:#a9ccf4; }
    .menuItem:hover{ text-decoration:underline;color:#ffffff; }
    .menuItem:visited{ text-decoration:none;}
    .menuItemSelected{ text-decoration:none; color:#ffffff;font-weight:bold;}
     
    < div >
                 < div id = "menuDiv" style = "background-color:#2777C3;" height = "30px" >
                     < hbox align = "center" vflex = "true" >
                         < separator />
                         < separator />
                         < a label = "保全" sclass = "menuItem" >
                             < custom-attributes url = "/zuls/bqShiwu/bqShiwu.zul" />
                         </ a >
                         < separator />
                         < label value = "|" style = "color:#ffffff" />
                         < separator />
                         < a label = "交款" sclass = "menuItem menuItemSelected" >
                             < custom-attributes url = "/zuls/shiwu.zul" />
                         </ a >
                         < separator />
                         < label value = "|" style = "color:#ffffff" />
                         < separator />
                         < a label = "服务" sclass = "menuItem" >
                             < custom-attributes url = "/zuls/ServiceNetWork/serviceNetWorkQuery.zul" />
                         </ a >
                         < separator />
                         < label value = "|" style = "color:#ffffff" />
                         < separator />
                         < a label = "单证" sclass = "menuItem" >
                             < custom-attributes url = "/zuls/resendDocument/resendDocumentQuery.zul" />
                         </ a >
                     </ hbox >
                 </ div >
                 < div id = "contentDiv" >
                     < include id = "交款" src = "/zuls/shiwu.zul" hflex = "true" />
                 </ div >
             </ div >

    列表中超长文本自动换行
    < label value = "${each.cityName}" style = "word-wrap: break-word;" />

    紧凑表格:去掉padding
    < style >tr.z-row .z-detail-outer {padding:0 0 0 0}</ style >


    更多见官方文档 《ZK Style Customization Guide》 http://books.zkoss.org/wiki/ZK%20Style%20Customization%20Guide/Upgrade%20Customized%20Style%20From%20other%20ZK%20Version/Upgrade%20From%20ZK%206.5

    3、ZK与客户端JS的双向调用

    3.1、服务端Java调用客户端JS

    ZK支持在服务端Java代码中直接执行js,如:Clients.evalJavaScript("top.bodyIframe.main.tabsDetail.setActiveTab('010402')");//选中保单查询页签

    如果要执行的JS很长,就不方便直接这样拼字符串了,可以:

    • 在Zul页面中引入js文件:<script type="text/javascript" src="/js/life/telGPS/preserveDoc.js"></script>
    • 或在<script>标签中直接写js:

      < script type = "text/javascript" >
                   function sendMessage(id){ var telNum = top.spani; zAu.send(new
                   zk.Event(zk.Widget.$('$preserveDisDocumentPopup'),'onSendMessage',{'':{documentId:id,tel:telNum}})); return;
                   }
               </ script >

    如果要执行的js不仅长而且里面有很多变量,可借助freemarker渲染js文件,例如:

    static {
             try {
                 cfg = new Configuration();
                 cfg.setLocalizedLookup( false );
                 cfg.setClassForTemplateLoading(CheckIdentityCtrl. class , "/com/xx/ctrl/policyCancel/" );
                 jsTemplate = cfg.getTemplate( "checkIdentity.js" , "UTF-8" );
             } catch (Exception e) {
                 e.printStackTrace();
                 throw new RuntimeException(e);
             }
         }
     
    HashMap map = new HashMap();
                     map.put( "customerName" , selectedPolicy.getsPname());
                     map.put( "policyNo" , selectedPolicy.getPolicyno());
                     String js = FreeMarkerTemplateUtils.processTemplateIntoString(jsTemplate, map);
                     logger.debug(js);
                     Clients.evalJavaScript(js);

    3.2、在ZUL页面中直接调用JS

    < script type = "text/javascript"
                 function sendShortMessage(id){
                     var telNum = top.spani;
                     zAu.send(new zk.Event(zk.Widget.$('$testButton'),'onSendMessage',{'':{documentId:id,tel:telNum}})); 
                     return; 
                
             </ script >
    < window xmlns:w = "client" …………>
    …………
    …………
    < a label = "发送短信" w:onClick = "sendShortMessage('${each.documentId}')" style = "color:red" ></ a >
    …………
    …………
    < button id = "testButton" label = "这个按钮用来被js作为zAu通知目标" onSendMessage = "@command('sendMassage',e=event)" visible = "false" ></ button >

    3.3、JS调用ZK服务

    客户端JS调用ZK服务也非常简单——通过zAu对象像某个组件发送事件,然后组件声明该事件触发command或服务端listen该事件处理即可;

    示例代码如下:

    < script type = "text/javascript"
                 function sendShortMessage(id){
                     var telNum = top.spani;
                     zAu.send(new zk.Event(zk.Widget.$('$testButton'),'onSendMessage',{'':{documentId:id,tel:telNum}}));//发送json对象调用ZK服务
                     return; 
                
             </ script >
    < window xmlns:w = "client" …………>
    …………
        < a label = "发送短信" w:onClick = "sendShortMessage('${each.documentId}')" style = "color:red" ></ a >
    …………
        < button id = "testButton" label = "这个按钮用来被js作为zAu通知目标" onSendMessage = "@command('sendMassage',e=event)" visible = "false" ></ button >
    @Command
         public void sendMassage( @BindingParam ( "e" ) Event e) throws Exception{
             JSONObject json = (JSONObject) e.getData();
             String documentId = (String)json.get( "documentId" );
             String tel = (String)json.get( "tel" );

    参考资料:http://marsvaadin.iteye.com/blog/1391559

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  • 原文地址:https://www.cnblogs.com/riasky/p/3483473.html
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