
当文本框中文字内容过长时,需要调整显示的样式
如上图所示的样式
对应的代码为:
<div id="showInfomation" style="visibility: hidden"></div>
<tr onmouseover="this.style.backgroundColor = 'white'" onmouseout="this.style.backgroundColor = '#F5FAFE';">
<td style="HEIGHT:22px" align="center" width="40%">
<div class="scrollStyle" align="left" onmouseover="showInfoWithPanel(this)" onmouseout="hiddenInfoPanel(this)" style="table-layout:fixed;">
<!-- 站点运行情况 -->
<s:property value="stationRun"/>
</div>
两个函数:
onmouseover="showInfoWithPanel(this)" 和 onmouseout="hiddenInfoPanel(this)"
对应的函数在前边引入的js中:
<link href="${pageContext.request.contextPath }/css/showText.css" type="text/css" rel="stylesheet">
<script language="javascript" src="${pageContext.request.contextPath }/script/showText.js"></script>
对应的js文件:
/*firefox*/function __firefox(){ HTMLElement.prototype.__defineGetter__("runtimeStyle", __element_style); window.constructor.prototype.__defineGetter__("event", __window_event); Event.prototype.__defineGetter__("srcElement", __event_srcElement);}function __element_style(){ return this.style;}function __window_event(){ return __window_event_constructor();}function __event_srcElement(){ return this.target;}function __window_event_constructor(){ if(document.all){ return window.event; } var _caller = __window_event_constructor.caller; while(_caller!=null){ var _argument = _caller.arguments[]; if(_argument){ var _temp = _argument.constructor; if(_temp.toString().indexOf("Event")!=-){ return _argument; } } _caller = _caller.caller; } return null;}if(window.addEventListener){ __firefox();}/*end firefox*/ function showInfoWithPanel(obj){
try{
//var e=event||window.event;
var showInfoWindow=document.getElementById("showInfomation");
showInfoWindow.className="clsShowInfoWindow";
showInfoWindow.style.visibility="visible";
var x=document.body.scrollLeft+event.clientX+;
var y=event.clientY+document.body.scrollTop+;//+document.documentElement.scrollTop;
showInfoWindow.style.left=x;
showInfoWindow.style.top=y;
showInfoWindow.innerHTML="";
showInfoWindow.innerHTML=obj.innerHTML;//+" clientY:"+y+" clientX:"+x;
obj.style.color="red";
}catch(e){alert("showInfoWithPanel:"+e.message);}
}
function hiddenInfoPanel(obj){
try{
var showInfoWindow=document.getElementById("showInfomation");
if(showInfoWindow || typeof(showInfoWindow)!='undefined'){
showInfoWindow.innerHTML="";
showInfoWindow.style.visibility="hidden";
}
obj.style.color="#000000";
}catch(e){alert("hiddenInfoPanel:"+e.message);}
}
首先获取到对应的变量,然后修改其显示的属性。
具体过程用google浏览器来调试,调试方法:如下图,在source中找到对应的js文件,断点进行调试
关于文本字数的显示
如图,文本下方显示文字的剩余个数
找到对应的代码:
<td class="ta_01" bgcolor="#ffffff" style="word-break: break-all">
<!-- 站点运行情况数据回显 -->
<s:textarea name="stationRun" id="stationRun" cssStyle="width: 500px; height: 160px; padding: 1;FONT-FAMILY: 宋体; FONT-SIZE: 9pt" onkeydown="if(event.keyCode==13)addEnter('stationRun');" />
</td>
event.keyCode按的建的代码,13表示回车,输入回车后,文本内容中添加<br>
<script></script>中,window.onload是一个事件,当文档加载完成之后就会触发该事件
window.onload=function(){
checkTextAreaLen();
}
对应的checkTextAreaLen()函数
function checkTextAreaLen(){
var stationRun = new Bs_LimitedTextarea('stationRun', );
stationRun.infolineCssStyle = "font-family:arial; font-size:11px; color:gray;";
stationRun.draw(); var devRun = new Bs_LimitedTextarea('devRun', );
devRun.infolineCssStyle = "font-family:arial; font-size:11px; color:gray;";
devRun.draw();
}
同时,对应的 Bs_LimitedTextarea()在 <script language="javascript" src="${pageContext.request.contextPath }/script/limitedTextarea.js"></script>的js中
function Bs_LimitedTextarea(elementId, maxLength) {
var a = arguments;
var arrayIndex=;
if (a.length==) {
elementId = a[];
maxLength = a[];
arrayIndex = ;
}
if (a.length==) {
elementId = a[];
maxLength = a[];
arrayIndex = a[];
}
......还有很多
这个js太复杂,用到的时候再看吧 ... ... 以上内容就是这两个js效果的描述