about_ javascript & xml

好久没写了。感觉今时今日，HTML5 还依然只是一种玩票的东东。但愿 w3c 的标准可以早一点出台，不要让各种浏览器的兼容问题和支持程度搞死。。。

 

JavaScript 端：

//初始化页面
function init() {
    var ary = JSONToArray(XMLReader("node","content.dibi"));
    var divtoc = document.getElementById("div_toc");
    pageCount = ary.length;
    for(k = 0; k < ary.length; k++){
        obj = eval('(' + ary[k] + ')');
        divtoc.innerHTML += "<a href='javascript:changeImage(" + obj.page.substring(obj.page.length-1) + ")'>" 
                         + obj.label + "</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;";
    }

    page = 1;
    changeImage(page);

    var pageManager = document.getElementById("div_page");
    pageManager.innerHTML = "<a href='javascript:changePage(0)'>上一页</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"
                          + "<a href='javascript:changePage(1)'>下一页</a><br/><br/>";

    var ary2 = JSONToArray(XMLReader("meta","content.dibi"));
    var divmeta = document.getElementById("div_meta");
    var styStr = "<table>"
    for(l = 0; l < ary2.length; l++){
        obj2 = eval('(' + ary2[l] + ')');
        styStr += "<tr><td>" + obj2.name + "</td><td>" + obj2.content + "</td></tr>";
    }
    divmeta.innerHTML = styStr + "</table>";
}

//解析.dibi 文件。
function XMLReader(key,fileName) {
    var parse = BrowserValidator();
        parse.load(fileName);
    var json = "";
    try{
        var dom = parse.documentElement;
        var attrLength = 0;
        for (i = 0; i < dom.getElementsByTagName(key).length; i++) {
            attrLength = dom.getElementsByTagName(key)[i].attributes.length;
            objMsg = ",{";
            for(j = 0; j < attrLength; j++){
                objMsg += "'" + dom.getElementsByTagName(key)[i].attributes[j].name
                     + "':'" + dom.getElementsByTagName(key)[i].attributes[j].value + "',"; 
            }
            objMsg = objMsg.substring(0,objMsg.length-1);  
            json += objMsg + "}";
        }
        json = json.substring(1);
    }catch(e){}
    return json;
}

//判断浏览器类型。支持 IE ，fireFox。
function BrowserValidator(){
    var result;
    if(!window.DOMParser && window.ActiveXObject) {
        result = new ActiveXObject("Microsoft.XMLDOM"); 
        result.async = false; 
    }
    else if(document.implementation && document.implementation.createDocument) {
        result = document.implementation.createDocument("", "", null);  
        result.async = false; 
    }
    return result;
}

var page = 1;   //当前页
var pageCount;  //总页数

//根据点击改变页面图片
function changeImage(page1){
    page = page1;
    var divimg = document.getElementById("div_img");
    divimg.innerHTML = "<img width='500' src = 'images/" + page +".jpg'/>";
}

//上页及下页
function changePage(flag){
    if(flag == 0 && page > 1){
        page--;
    }
    if(flag == 1 && page < pageCount){
        page++;
    }
    changeImage(page);
}


//将 JSON 数据转换成数组
function JSONToArray(json){
    return json.replace(new RegExp("},", "g"), "}|").split("|");
}

 

HTML 端：

<html>
<head>
    <title></title>
    <script language="javascript" type="text/javascript" charset='gbk' src="xmlhelper.js"></script>
</head>
<body onload="init()">
<div id="div_toc"></div>
<div id="div_img"></div>
<div id="div_page"></div>
<div id="div_meta"></div>
</body>
</html>

 

XML 端：略。


 

posted on 2011-11-18 15:43  破阵子 . 如是我闻  阅读(391)  评论(0)  编辑  收藏  举报

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