wiquery Events

最新推荐文章于 2022-07-03 19:56:13 发布

weixin_33859844

最新推荐文章于 2022-07-03 19:56:13 发布

阅读量89

点赞数

CC 4.0 BY-SA版权

文章标签： javascript python ViewUI

原文链接：https://my.oschina.net/u/1047983/blog/130035

本文介绍了WiQuery中如何实现标准及自定义JavaScript事件的绑定。通过实现EventLabel接口并使用WiQueryEventBehavior或WiQueryAjaxEventBehavior，可以轻松地为元素绑定事件并执行所需操作。

2019独角兽企业重金招聘Python工程师标准>>>

What is that ?

wiQuery offers the possiblity to bind standard and custom javascript event. To declare a type of event, you have to create an object that implements the interface "EventLabel". For all events binding by wiQuery, we use some enumerations.

After that, you can use WiQueryEventBehavior or WiQueryAjaxEventBehavior to declare a javascript event and to execute what you want

How to use

Example of to create events (extract from MouseEvent)

public enum MouseEvent implements EventLabel { 
 
        CLICK, DBLCLICK, MOUSEDOWN, MOUSEENTER, MOUSELEAVE, MOUSEMOVE, MOUSEOUT, MOUSEOVER, MOUSEUP, SCROLL; 
 
        /* 
         * (non-Javadoc) 
         *  
         * @see org.odlabs.wiquery.core.events.EventLabel#getEventLabel() 
         */ 
        public String getEventLabel() { 
                return this.name().toLowerCase(); 
        } 
  }

Examples to declare events:

clickButton.add(new WiQueryEventBehavior(new Event(MouseEvent.CLICK) { 
        private static final long serialVersionUID = 1L; 
 
        /** 
         * {@inheritDoc} 
         * @see org.odlabs.wiquery.core.events.Event#callback() 
         */ 
        @Override 
        public JsScope callback() { 
                return JsScope.quickScope("alert('click done');"); 
        }  })); 
 
ajaxClickButton.add(new WiQueryAjaxEventBehavior(MouseEvent.CLICK) { 
        private static final long serialVersionUID = 1L; 
 
        /** 
         * {@inheritDoc} 
         * @see org.odlabs.wiquery.core.events.WiQueryAjaxEventBehavior#onEvent(org.apache.wicket.ajax.AjaxRequestTarget) 
         */ 
        @Override 
        protected void onEvent(AjaxRequestTarget target) { 
                target.appendJavascript("alert('ajax click done');"); 
        }  });

转载于:https://my.oschina.net/u/1047983/blog/130035