bootstrap.js

高效的,很好用 高效的,很好用

/**
 * <b>boot strap functions</b>
 * @version : 1.0
 * @since : 2007-6-14
 * 
 * @Description : 
 * startup working enviroment
 * 
 * @author xp [e-mail] | [e-mail]
 * @copyright sina.com
 */

/**-------------------------/// Boot-strap \\\---------------------------
 *
 * 1. decide who is the top frame
 * 2. preLoad configs
 * 3. fix config data
 * 4. supply some function for loading external resource
 *
 *--------------------------\\\ Boot-strap ///---------------------------*/

/** 
 * 
 */
document.domain="blog.sina.com.cn";

if (window.scope == null){
  try {
    if (window.parent.scope != null) window.scope = window.parent.scope;
  } catch (e) {
    scope.trace("---\n" + e);
  }
  try {
    if (window.scope == null) window.scope = window;
  } catch (e) {
    scope.trace(e);
  }
}

/* fix $BASE */
if ($BASE.lastIndexOf("/") < $BASE.length-1) $BASE = $BASE + "/";


/**
 * @author xp
 * write script tag to document. Can be used only in page-loading phase.
 * only script text or script url can be accepted. u cant specify none or two of them or an error will be raised
 * @param o {
 *    id : id of the created tag, 
 *    url : String,
 *    script  : String
 *  }
 */
function dwScript(o){
  o.id = o.id || "";
  o.charset = o.charset || "utf-8";
  if (o.script && o.script != ""){
    document.write("<script id='" + o.id + "'>" + o.script + "<\/script>");
  } else if (o.url && o.url != ""){
    document.write("<script id='" + o.id + "' src='" + o.url + "' charset='" + o.charset + "'><\/script>");
  } else throw new Error("no script content or url specified");
}

/**
 * @author xp
 * write link tag or style tag to document. Can be used only in page-loading phase.
 * only script text or script url can be accepted. u cant specify none or two of them or an error will be raised
 * @param o {
 *    id : id of the created tag, 
 *    url : String,
 *    script  : String
 *  }
 */
function dwCSS(o){
  o.id = o.id || "";
  if (o.url){
    document.write('<link id="' + o.id + '" rel="stylesheet" type="text/css" href="' + o.url + '" />');
  } else if (o.styles){
    document.write('<style id="' + o.id + '" >'+o.styles+'<\/style>');
  } 
}


/**
 * determine which page it is in
 */
function $getPageId(win){
  win = win || this;
  var ref = win.location.href;
  if (ref.indexOf("/s/blog_") > -1) return "article";
  if (ref.indexOf("/s/comment_") > -1) return "comment";
  return "blog";
}


function fixConfig(){
  if (scope.fixed) return;
  scope.fixed = true;

  function fix(o, name, value){ if (o[name] == null || o[name] == -1) o[name] = value; }
  function int(str) {return parseInt(str);}

  var scp = window.scope;
  scp.config = scp.config || {};
  var cfg = scp.config;
  fix(cfg, "theme"      , 1);
  fix(cfg, "countTheme" , 301);
  fix(cfg, "isRandom"   , false);
  fix(cfg, "customTheme", { calendar : 1, music : 1, photo : 1, bannar : 1, menu : 1, box_1 : 1, box_2 : 1, bg : 1 });
  var ctm = cfg.customTheme;
  fix(ctm, "calendar", 1);
  fix(ctm, "music",  1);
  fix(ctm, "photo",  1);
  fix(ctm, "bannar", 1);
  fix(ctm, "menu",   1);
  fix(ctm, "box_1",  1);
  fix(ctm, "box_2",  1);
  fix(ctm, "bg",     1);

  if (cfg.isRandom && scope.themeRange && scope.themeRange[cfg.theme-1]) {
    var ct = cfg.customTheme;
    var tr = scope.themeRange[cfg.theme-1];
    for (var i in ct){
      if (tr[i] != null) ct[i] = Math.ceil(Math.random()*tr[i]);
    }
  }
  fix(cfg, "client_ver" , "");
  var vers = cfg.client_ver.split(",") || [];
  
  fix(cfg, "resourceVersion" , int(vers[0]) || new Date().getDate());
  fix(cfg, "cssVer"          , int(vers[1]) || 1);
  fix(cfg, "jsVer"           , int(vers[2]) || 1);
  fix(cfg, "imgVer"          , int(vers[3]) || 1);
  fix(cfg, "isModified"      , false);
  fix(cfg, "layout"          , null);
  fix(cfg, "isCommentAllowed", true);
  fix(cfg, "isMessageAllowed", true);

  var lo = cfg.layout;

  /* force article page config.layout */
  if ($getPageId() == "article") {
    lo = cfg.layout = {
      column_1 : [ "blog_photo", "blog_zone", "blog_sort", /*"new_module",*/ "blog_last_updated_blog" ], 
      column_2 : [ "blog_feeds" ]
    }
  } else if (lo && lo.column_1) {
    /* lo.column_1.push("blog_counter", "blog_feeds_addr");   */
  }

  /* config doesnt output layout order                                             */
  /* fix the bug in theme 4 left-right hasnt been reversed */
  if (cfg.theme == 4 && lo && lo.column_1 && lo.column_2){
    var t;
    t = lo.column_1; lo.column_1 = lo.column_2; lo.column_2 = t;
  }

}



/**
 * This method will not be called until config data hs been loaded.
 * In-page script should invoke this method.
 * 
 */
function loadPreProcedure(){
  fixConfig();
  var cfg = window.scope.config;
  
  var jsVer = cfg.resourceVersion + '_' + cfg.jsVer+".js";
  dwScript({url:$BASE + 'js/preProcess.js?'+jsVer});

}

function loadCss(){
  fixConfig();
  var cfg = window.scope.config;
  var cssVer = cfg.resourceVersion + '_' + cfg.cssVer+".css";
  dwCSS({url:$BASE + 'css/default.template.css?'+cssVer});              /* write frame css */
  dwCSS({url:$BASE + 'css/theme/'+ cfg.theme +'.css?'+cssVer}); /* write theme css */
  var cus = cfg.customTheme;
  var icalendar=scope.themeRange[cfg.theme].icalendar;
  icalendar==0 ? cus["photo"]=cus["calendar"]:"";
  var url_1 = "css.cached.4.0/" + cfg.theme + "_1/{$photo}/{$bannar}_{$menu}.css?"+cssVer;
  var url_2 = "css.cached.4.0/" + cfg.theme + "_2/{$box_1}/{$box_2}_{$bg}.css?"+cssVer;
  url_1 = url_1.replace(/\{\$(\w+)\}/g,function (a,s){return cus[s];});
  url_2 = url_2.replace(/\{\$(\w+)\}/g,function (a,s){return cus[s];});
  dwCSS({url:$BASE + url_1});   /* write custome css */
  dwCSS({url:$BASE + url_2});   /* write custome css */
}

function loadResource(id){
  id = id || $getPageId();
  fixConfig();
  var cfg = window.scope.config;
  var jsVer = cfg.resourceVersion + '_' + cfg.jsVer+".js";
  switch (id){
    case "fl": 
        dwScript({url : $BASE + 'js/fl.js?'       +jsVer}); break;
    case "article": 
        /* dwScript({url : $BASE + 'js/article.js?'  +jsVer}); break; */
    case "comment": 
    case "index": 
    case "circle": 
    case "gbook": 
    case "alist": 
    case "list": 
        /* dwScript({url : $BASE + 'js/list.js?'     +jsVer}); break; */
    case "blog": 
    default: dwScript({url : $BASE + 'js/blog.js?'+jsVer});
  }
}


//TODO correct the url
if (window == window.scope) {
  var code = checkAuthor() ? "1" : "0";
  dwScript({
    url     : "http://conf.blog.sina.com.cn/cnf?" + window.scope.uid + "&"+code+"&" + Math.random() + ".js",
    charset : "gb2312"
  });
  dwScript({
    url     : $BASE + "js/staticConfig.js",
    charset : "gb2312"
  });
}
/* From util.js @ Stan  */
/**
  * check user status by cookie
  * @author stan
  * return Boolean true if the author is visiting its own blog
  */
function checkAuthor(){
  trace("uid : "+scope.uid, "#00FFFF");
  var AuthorInfo = getCookie("nick");
  scope.AuthorUID = AuthorInfo ? AuthorInfo.match(/\(\d{10,12}\)/g)[0].replace(/\(|\)/g, "") : null;
  trace("UID : "+scope.AuthorUID, "#00FFFF");
  return scope.AuthorUID && scope.uid == scope.AuthorUID;
}

/**
  * get cookie by name  
  * @author stan
  */
function getCookie(name) {
  var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));
  if(arr != null) return unescape(arr[2]); return null;
}

function trace(){} /* for debug */

window.scope.EI = 0;