pager.js

CallSun 人才招聘求职系统 V2.20

// JScript 文件
function Pager()
{
    this.PageSize = 10;
    this.PageIndex = 1;
    this.PageCountShow = 10;
    this.RecordCount = 400;
    
    this.Style = "style=\"font-size:12px;color:break;font-weight:bold;\"";
    this.ItemStyle = "style=\"cursor:point;margin-left:8px;color:break;cursor:pointer;\"";
    this.SelectedItemStyle = "style=\"color:red;margin-left:8px;font-weight:bold;cursor:pointer;\"";
    
    this.OnMouseClickEvent = "onclick=\"onItemMouseClick(this);\"";
    this.OnMouseOutEvent = "onmouseout=\"onItemMouseOut(this);\"";
    this.OnMouseOverEvent = "onmouseover=\"onItemMouseOver(this);\"";
    
    this.PagesValue = null;
    this.PagesText = null;
    this.PagesStyle = null;
    
    this.ShowFirstPageButton = false;
    this.ShowLastPageButton = false;
    
    this.FirstPageButtonText = "首页";
    this.FirstPageButtonStyle = "style=\"cursor:pointer;margin-left:8px;\"";
    
    this.LastPageButtonText = "末页";
    this.LastPageButtonStyle = "style=\"cursor:pointer;margin-left:8px;\"";
    
    this.NewPagerText = "...";
    this.NewPagerStyle = "style=\"cursor:pointer;margin-left:8px;\"";
}

function validatePager(objPager)
{
    var defaultPageSize = 10;
    var defaultPageIndex = 1;
    var defaultPageCountShow = 10;
    var defaultRecordCount = 100;
    var zero = 0;
        
    var pageSize = objPager.PageSize;
    objPager.PageSize = checkIntData(pageSize,zero,defaultPageSize);
    
    var pageIndex = objPager.PageIndex;
    objPager.PageIndex = checkIntData(pageIndex,zero + 1,defaultPageIndex);
    
    var pageCountShow = objPager.PageCountShow;
    objPager.PageCountShow = checkIntData(pageCountShow,zero,defaultPageCountShow);
    
    var recordCount = objPager.RecordCount;
    objPager.RecordCount = checkIntData(recordCount,zero,defaultRecordCount);
    
    var pageCount = Math.ceil(objPager.RecordCount/objPager.PageSize); 
    if (objPager.PageIndex > pageCount)
    {
        objPager.PageIndex = defaultPageIndex;
    }
}

function checkIntData(value,compareValue,defaultValue)
{
    var validateValue = parseInt(value);
    if ((validateValue < compareValue) || isNaN(validateValue))
    {
        validateValue = defaultValue;
    }
    return validateValue;
}

function initPager(objPager)
{
    validatePager(objPager);
    var pageSize = objPager.PageSize;
    var pageIndex = objPager.PageIndex;
    var pageCountShow = objPager.PageCountShow;
    var recordCount = objPager.RecordCount;
    
    var pageCount = Math.ceil(recordCount/pageSize);
    
    var pageBegin = 1 + Math.floor((pageIndex-1)/pageCountShow)*pageCountShow;
    var pageEnd = 0;
    
    var pageEndTemp = pageBegin + pageCountShow - 1;
        
    if (pageEndTemp > pageCount)
    {
        pageEnd = pageCount;
    }
    else
    {
        pageEnd = pageEndTemp;
    }
    
    var pagesValue = new Array();
    var pagesText = new Array();
    var pagesStyle = new Array();
    var value = 0;
    
    //末页按钮
    if (objPager.ShowLastPageButton)
    {
        value = pageCount;
        pagesValue.push(value);
        pagesText.push(objPager.LastPageButtonText);
        pagesStyle.push(objPager.LastPageButtonStyle);
    }
    //下一新页跳转按钮
    if (pageEnd < pageCount)
    {
        value = pageEnd + 1;
        pagesValue.push(value);
        pagesText.push(objPager.NewPagerText);
        pagesStyle.push(objPager.NewPagerStyle);
    }
    //中间页面按钮
    for (var i = pageEnd; i >= pageBegin; i--)
    {
        pagesValue.push(i);
        pagesText.push(i);
        if (i == pageIndex)
        {
            pagesStyle.push(objPager.SelectedItemStyle);
        }
        else
        {
            pagesStyle.push(objPager.ItemStyle);
        }            
    }
    //上一新页面跳转按钮    
    if (pageBegin > pageCountShow)
    {
        value = pageBegin - 1;
        pagesValue.push(value);
        pagesText.push(objPager.NewPagerText);
        pagesStyle.push(objPager.NewPagerStyle);
    }
    //首页按钮
    if (objPager.ShowFirstPageButton)
    {
        value = 1;
        pagesValue.push(value);
        pagesText.push(objPager.FirstPageButtonText);
        pagesStyle.push(objPager.FirstPageButtonStyle);
    }
    
    objPager.PagesValue = pagesValue;
    objPager.PagesText = pagesText;
    objPager.PagesStyle = pagesStyle;
    
    return objPager;
}

function display(objPager)
{
    initPager(objPager);
    
    var pagesValue = objPager.PagesValue;
    var pagesText = objPager.PagesText;
    var pagesStyle = objPager.PagesStyle;
    
    var value = null;
    var text = null;
    var style = null;
    var length = pagesText.length;
    var pagerHtml = "";
    pagerHtml = pagerHtml + "<div id=\"divPager\" " + objPager.Style + ">";
    for (var i = 0;i < length ;i ++)
    {
        value = pagesValue.pop();
        text = pagesText.pop();
        style = pagesStyle.pop();
        
        var itemHtml = null;
        
        itemHtml = "<span " + " value=\"" + value + "\" " + style + " ";
        if (value != objPager.PageIndex)
        {
            itemHtml = itemHtml + objPager.OnMouseOverEvent + " " + objPager.OnMouseOutEvent + " " + objPager.OnMouseClickEvent + " ";
        }
        itemHtml = itemHtml + ">" + text + "</span>";
        pagerHtml = pagerHtml + itemHtml;
    }
    pagerHtml = pagerHtml + "</div>";
    
    document.write(pagerHtml);
}

function onItemMouseOver(obj)
{
    obj.style.color = "#FF6600";
    obj.style.backgroundColor = "Lavender";
}

function onItemMouseOut(obj)
{
    obj.style.color = "#000000";
    obj.style.backgroundColor = "Transparent";
}

function onItemMouseClick(obj)
{
    var act = document.getElementById("act");
    if (act != null)
    {
        act.value = "paging";
    }
    Paging(obj.value);
}