javascript - 将我的弹出窗口居中的问题

Question

已更新整个弹出代码

//SETTING UP OUR POPUP
//0 means disabled; 1 means enabled;
var cid;
var hname;
var cname;
var cfname;
var ctstamp;

var popupCompareStatus = 0;

//loading popup with jQuery magic!
function loadComparePopup(){
//loads popup only if it is disabled
if(popupCompareStatus==0){
    $("#compareBackgroundPopup").css({
        "opacity": "0.7"
    });
    $("#compareBackgroundPopup").fadeIn("slow");
    $("#popupCompare").fadeIn("slow");
    popupCompareStatus = 1;
}
}

//disabling popup with jQuery magic!
function disableComparePopup(){
//disables popup only if it is enabled
if(popupCompareStatus==1){
    $("#compareBackgroundPopup").fadeOut("slow");
    $("#popupCompare").fadeOut("slow");
    popupCompareStatus = 0;
}
}

//centering popup
function centerComparePopup(){
//request data for centering
var windowWidth = document.documentElement.clientWidth;
var windowHeight = document.documentElement.clientHeight;
var popupHeight = $("#popupCompare").height();
var popupWidth = $("#popupCompare").width();
console.info("windowWidth="+windowWidth+", windowHeight="+windowHeight+"popupWidth="+popupWidth+", popupHeight="+popupHeight);


$("#popupCompare").css({
    position: "absolute",
    width: "800px",
    top: $(window).height()/2 - $("#popupCompare").outerHeight()/2,
    left: $(window).width()/2 - $("#popupCompare").outerWidth()/2
});

$("#compareBackgroundPopup").css("height", $(window).height());
}
var dummy1='<list>  <TagResult elementname="osname" subCategory="system" value1="Linux" value2="HP-US1000" isEqual="false"/>  <TagResult elementname="hostname" subCategory="system" value1="estilo" value2="benz" isEqual="false"/>  <TagResult elementname="release" subCategory="system" value1="2.6.18-128.el5" value2="B.11.23" isEqual="false"/><TagResult elementname="version" subCategory="system" value1="Red Hat Enterprise Linux Server release 5.3 (Tikanga)" value2="U" isEqual="false"/>  <TagResult elementname="machine" subCategory="system" value1="x86_64" value2="ia64 hp server rx2600" isEqual="false"/>  <TagResult elementname="bitmode" subCategory="system" value1="64" value2="64" isEqual="true"/>  <TagResult elementname="numberofcpu" subCategory="system" value1="4" value2="2" isEqual="false"/>  <TagResult elementname="cpuspeed" subCategory="system" value1=" 1862.890" value2="1400" isEqual="false"/>  <TagResult elementname="maxfilesperproc" subCategory="system" value1="32" value2=" 32" isEqual="true"/>  <TagResult elementname="maxthreadsperproc" subCategory="system" value1="2000000" value2="                    256  " isEqual="false"/><TagResult elementname="mempagesize" subCategory="system" value1="4096" value2="4096" isEqual="true"/><TagResult elementname="ssaname3webserviceserver" subCategory="product" value1="ssasvck&gt; Attempt 1 at server &apos;null:-1&apos;ssasvck&gt; Server&apos;null:-1&apos; is down" value2="ssasvck&gt; Attempt 1 at server &apos;null:-1&apos;ssasvck&gt; Server &apos;null:-1&apos; is down" isEqual="true"/><TagResult elementname="TERM" subCategory="envVariable" value1="xterm " value2="xterm" isEqual="true"/><TagResult elementname="JAVA_HOME" subCategory="envVariable" value1="/home/hqusers1/IIR_1152825121_estilo_9.0.1SP2_32 " isEqual="false"/><TagResult elementname="SSANUL" subCategory="envVariable" value1="/dev/null " value2="/dev/null" isEqual="true"/><TagResult elementname="SSA_LIHOST" subCategory="envVariable" value1="estilo:45682 " value2="benz:7660" isEqual="false"/><TagResult elementname="SSH_CLIENT" subCategory="envVariable" value1="10.65.6.131 4760 22 " value2="10.65.241.204 367222" isEqual="false"/></list>';

$('#compareTable a').live('click', function() {
var elementId=$(this).attr("id");
showHiddenTr(elementId);
});
function showHiddenTr(eid)
{
if($(".differentEnvironmentHiddentr").is(':visible'))
{
    $(".differentEnvironmentHiddentr").hide();
}
else
{
    $(".differentEnvironmentHiddentr").show();
}        
}


function populateCompare(cmp)
{
var mytr = new Array();
var mytrs="";
var i=0;
var xml=dummy1;
$('#compareContent').empty();
$('#compareContent').html("<table width='100%'><tbody><tr><td align='center'>Compare details being loaded</td></tr><tr><td align='center'><img src='/csm/view/include/images/loading.gif' alt='Loading'/></td></tr></tbody></table>");
if(cmp=="all")
{

    $(xml).find('TagResult').each(function(){
        if($(this).attr("isEqual")=="false")
        {
            mytr[i]='<tr class="regulartr">'+
            '<td class="different" align="left">'+$(this).attr("elementname")+'</td>'+
            '<td class="different" align="left">'+$(this).attr("value1")+'</td>'+
            '<td class="different" align="left">'+$(this).attr("value2")+'</td>'+
            '</tr>';
            mytrs+=mytr[i++];
        }
        else
        {
            mytr[i]='<tr class="regulartr">'+
            '<td class="nametd" align="left">'+$(this).attr("elementname")+'</td>'+
            '<td class="value1td" align="left">'+$(this).attr("value1")+'</td>'+
            '<td class="value2td" align="left">'+$(this).attr("value2")+'</td>'+
            '</tr>';
            mytrs+=mytr[i++];
        }

    });


    $('#compareContent').empty();
    $('<div>')
    .html('<table id="compareTable" cellspacing="0" cellpadding="0">'+
            '<thead><tr class="regulartr">'+
                '<th align="center">Name</th>'+
                '<th align="center">Config1</th>'+
                '<th align="center">Config2</th>'+
            '</tr></thead><tbody>'+mytrs

        +'</tbody></table>')
    .appendTo('#compareContent');

} 
if(cmp=="diff")
{
    var env=0;
    $(xml).find('TagResult').each(function(){

        if($(this).attr("isEqual")=="false")
        {
            if($(this).attr("subCategory")=="envVariable")
            {
                if(env==0)
                {
                    mytr[i]='<tr class="regulartr">'+
                    '<td class="different" align="left"><a id="showCmpEnvironment"><img  src="http://pslxcsm01:8080/informaticaCSM/zkau/web/zul/img/tree/close.png"/>'+$(this).attr("subCategory")+'</a></td>'+
                    '<td class="different" align="left"></td>'+
                    '<td class="different" align="left"></td>'+
                    '</tr>';
                    mytrs+=mytr[i++];
                    mytr[i]='<tr class="differentEnvironmentHiddentr">'+
                    '<td class="different" align="left">&nbsp;&nbsp;'+$(this).attr("elementname")+'</td>'+
                    '<td class="different" align="left">'+$(this).attr("value1")+'</td>'+
                    '<td class="different" align="left">'+$(this).attr("value2")+'</td>'+
                    '</tr>';
                    mytrs+=mytr[i++];
                    env=1;
                }
                else
                {


                    mytr[i]='<tr class="differentEnvironmentHiddentr">'+
                    '<td class="different" align="left">&nbsp;&nbsp;'+$(this).attr("elementname")+'</td>'+
                    '<td class="different" align="left">'+$(this).attr("value1")+'</td>'+
                    '<td class="different" align="left">'+$(this).attr("value2")+'</td>'+
                    '</tr>';
                    mytrs+=mytr[i++];
                }
            }
            else
            {
                mytr[i]='<tr class="regulartr">'+
                '<td class="different" align="left">'+$(this).attr("elementname")+'</td>'+
                '<td class="different" align="left">'+$(this).attr("value1")+'</td>'+
                '<td class="different" align="left">'+$(this).attr("value2")+'</td>'+
                '</tr>';
                mytrs+=mytr[i++];
            }



        }


    });


    $('#compareContent').empty();
    $('<div>')
    .html('<table id="compareTable" cellspacing="0" cellpadding="0">'+
            '<thead><tr class="regulartr">'+
                '<th align="center">Name</th>'+
                '<th align="center">Config1</th>'+
                '<th align="center">Config2</th>'+
            '</tr></thead><tbody>'+mytrs

        +'</tbody></table>')
    .appendTo('#compareContent');

} 
}



//CONTROLLING EVENTS IN jQuery
$(document).ready(function(){

//LOADING POPUP

$("#btnCompare").click(function(event){
    var count=getCheckedCount();    
    if(count==2)
    {
        //show compare
        populateCompare("all");
        //centering with css
        centerComparePopup();
        //load popup
        loadComparePopup();
        //get configs



    }
    else if(count>2)
    {
        $("#messageBox").empty();
        $('<b>')
        .html('To compare select only two configurations')      
        .appendTo('#messageBox');

        $("#messageBox").fadeIn().delay(2000).fadeOut('slow');
    }           
    else
    {
        $("#messageBox").empty();
        $('<b>')
        .html('Please select two configurations to compare')        
        .appendTo('#messageBox');

        $("#messageBox").fadeIn().delay(2000).fadeOut('slow');
    }       
});

$('#compareForm input:radio').click(function() {
        populateCompare($(this).val());
  });

//CLOSING POPUP
//Click the x event!
$("#popupCompareClose").click(function(){
    disableComparePopup();
});
//Click out event!
$("#compareBackgroundPopup").click(function(){
    disableComparePopup();
});
//Press Escape event!
$(document).keypress(function(e){
    if(e.keyCode==27 && popupCompareStatus==1){
        disableComparePopup();
    }
});

});

这是您要求的屏幕截图

Answer 1

弹出窗口中是否有任何图像，因为调整弹出窗口宽度会导致调整图像宽度并最终调整图像高度

-----编辑----

你可以做的一件事是将这个 css 添加到弹出窗口

.myPopUp
{
 height: whatever_you_like;
 overflow-y: auto;
}

现在如果高度超过了会出现一个滚动的高度，我希望这能解决问题