`
linxuexin
  • 浏览: 26755 次
  • 性别: Icon_minigender_1
  • 来自: 厦门
社区版块
存档分类
最新评论

实现跨框架的类似GOOGLE的搜索建议

Google框架CSSprototypeAjax 
阅读更多

调用的代码(top.html)

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<script src="../include/js/bsn.AutoSuggest_c_2.0.js" type="text/javascript"></script>
<link rel="stylesheet" type="text/css" href="../include/css/autosuggest_inquisitor.css">
</head>

<body>
<table width="100%" border="1" height="100%">
 <tr>
     <td width="50%">ddd</td>
        <td>dfsdf</td>
    </tr>
    <tr>
     <td>ddd</td>
        <td>dfsdf</td>
    </tr>
    <tr>
     <td>ddd</td>
        <td>dfsdf</td>
    </tr>
    <tr>
     <td>ddd</td>
        <td><input id="mytest" /></td>
    </tr>
</table>
<script type="text/javascript">

//以下代码把mytest这个输入框绑定为搜索提醒
var options = {
 script: "server.html?",
 varname: "variableName",
 json: true,
 maxresults: 35,
 cache:false
};
var as = new AutoSuggest('mytest', options);
</script>
</body>
</html>

 

js组件源码(bsn.AutoSuggest_c_2.0.js)

 

var asObject = {}
var popupWin;

function ltrim(s){
return s.replace( /^\s*/, "");
}
function rtrim(s){
return s.replace( /\s*$/, "");
}
function trim(s){
return rtrim(ltrim(s));
}


var t_temp_fid ;

var useBSNns;

if (useBSNns)
{
 if (typeof(bsn) == "undefined")
  bsn = {}
 _bsn = bsn;
}
else
{
 _bsn = this;
}

 

if (typeof(_bsn.Autosuggest) == "undefined")
 _bsn.Autosuggest = {}

 

 

 

 

 


var offwidth=0;
var offtop=0;
_bsn.AutoSuggest = function (fldID, param,i,j)
{
    //set offwidth
 if(i)
      offwidth = i;
   if(j)
      offtop = j;
 // no DOM - give up!
 //
 if (!document.getElementById)
  return false;
 
 
 
 
 // get field via DOM
 //
 this.fld = _bsn.DOM.getElement(fldID);
    t_temp_fid = document.getElementById(fldID);
 if (!this.fld)
  return false;
 
 
 
 
 // init variables
 //
 this.sInput   = "";
 this.nInputChars  = 0;
 this.aSuggestions  = [];
 this.iHighlighted  = 0;
 eval("asObject."+fldID+" = this");
 
 
 
 
 // parameters object
 //
 this.oP = (param) ? param : {};
 
 // defaults 
 //
 if (!this.oP.minchars)         this.oP.minchars = 1;
 if (!this.oP.method)         this.oP.meth = "get";
 if (!this.oP.varname)         this.oP.varname = "input";
 if (!this.oP.className)         this.oP.className = "autosuggest";
 if (!this.oP.timeout)         this.oP.timeout = 5000;
 if (!this.oP.delay)          this.oP.delay = 500;
 if (!this.oP.offsety)         this.oP.offsety = -5;
 if (!this.oP.shownoresults)        this.oP.shownoresults = true;
 if (!this.oP.noresults)         this.oP.noresults = "No results!";
 if (!this.oP.maxheight && this.oP.maxheight !== 0)  this.oP.maxheight = 250;
 if (!this.oP.cache && this.oP.cache != false)   this.oP.cache = true;
 
 
 
 
 
 // set keyup handler for field
 // and prevent autocomplete from client
 //
 var pointer = this;
 
 // NOTE: not using addEventListener because UpArrow fired twice in Safari
 //_bsn.DOM.addEvent( this.fld, 'keyup', function(ev){ return pointer.onKeyPress(ev); } );
 
 this.fld.onkeypress  = function(ev){ return pointer.onKeyPress(ev); }
 this.fld.onkeyup   = function(ev){ return pointer.onKeyUp(ev); }
 this.fld.onblur   = function(){ return pointer.onBlur();}
 
 this.fld.setAttribute("autocomplete","off");
}

 

 

_bsn.AutoSuggest.prototype.onBlur = function()
{
 this.clearSuggestions();
}

 

 

 


_bsn.AutoSuggest.prototype.onKeyPress = function(ev)
{
 
 var key = (window.event) ? window.event.keyCode : ev.keyCode;

 

 // set responses to keydown events in the field
 // this allows the user to use the arrow keys to scroll through the results
 // ESCAPE clears the list
 // TAB sets the current highlighted value
 //
 var RETURN = 13;
 var TAB = 9;
 var ESC = 27;
 
 var bubble = true;

 switch(key)
 {

  case RETURN:
   this.setHighlightedValue();
   bubble = false;
   break;


  case ESC:
   this.clearSuggestions();
   break;
 }

 return bubble;
}

 

_bsn.AutoSuggest.prototype.onKeyUp = function(ev)
{
 var key = (window.event) ? window.event.keyCode : ev.keyCode;
 


 // set responses to keydown events in the field
 // this allows the user to use the arrow keys to scroll through the results
 // ESCAPE clears the list
 // TAB sets the current highlighted value
 //

 var ARRUP = 38;
 var ARRDN = 40;
 
 var bubble = true;

 switch(key)
 {
  case ARRUP:
   this.changeHighlight(key);
   if(this.aSuggestions[this.iHighlighted-1]){
    this.sInput = this.fld.value =this.aSuggestions[this.iHighlighted-1].value;
   }   
   bubble = false;
   if(popupWin)
   {
    var table = popupWin.document.getElementById("as_table");
    var td = table.rows(this.iHighlighted-1).cells(0);
    td.style.backgroundColor = "#e3eefa";
   }
   break;


  case ARRDN:
   this.changeHighlight(key);
   if(this.aSuggestions[this.iHighlighted-1]){
    this.sInput = this.fld.value = this.aSuggestions[this.iHighlighted-1].value;
   }  
   bubble = false;
   if(popupWin)
   {
    
    var table = popupWin.document.getElementById("as_table");
    var td = table.rows(this.iHighlighted-1).cells(0);
    td.style.backgroundColor = "#e3eefa";
   }
   break;
  
  
  default:
   this.getSuggestions(this.fld.value);
 }

 return bubble;
 

}

 

 

 


_bsn.AutoSuggest.prototype.getSuggestions = function (val)
{
 
 // if input stays the same, do nothing
 //
 if (val == this.sInput)
  return false;

 
 // input length is less than the min required to trigger a request
 // reset input string
 // do nothing
 //
 if (val.length < this.oP.minchars)
 {
  this.sInput = "";
  return false;
 }
 
 
 // if caching enabled, and user is typing (ie. length of input is increasing)
 // filter results out of aSuggestions from last request
 //
 if (val.length>this.nInputChars && this.aSuggestions.length && this.oP.cache)
 {
  var arr = [];
  for (var i=0;i<this.aSuggestions.length;i++)
  {
   if (this.aSuggestions[i].value.substr(0,val.length).toLowerCase() == val.toLowerCase())
    arr.push( this.aSuggestions[i] );
  }
  
  this.sInput = val;
  this.nInputChars = val.length;
  this.aSuggestions = arr;
  
  this.createList(this.aSuggestions);
  
  
  
  return false;
 }
 else
 // do new request
 //
 {
  this.sInput = val;
  this.nInputChars = val.length;  
  
  var pointer = this;
  clearTimeout(this.ajID);
  this.ajID = setTimeout( function() { pointer.doAjaxRequest() }, this.oP.delay );
 }

 return false;
}

 

 

_bsn.AutoSuggest.prototype.doAjaxRequest = function ()
{
 
 var pointer = this;

 if(trim(this.fld.value)!=""){
  // create ajax request
  //var url = this.oP.script+this.oP.varname+"="+escape(this.fld.value);
  var url = this.oP.script+this.oP.varname+"="+encodeURI(this.fld.value);
  var meth = this.oP.meth;
 
  var onSuccessFunc = function (req) { pointer.setSuggestions(req) };
 
  var onErrorFunc = function (status) { alert("AJAX error: "+status); };
 
  var myAjax = new _bsn.Ajax();
 
  myAjax.makeRequest( url, meth, onSuccessFunc, onErrorFunc );
 }
 
 
}

 

 

_bsn.AutoSuggest.prototype.setSuggestions = function (req)
{
 this.aSuggestions = [];
 if (this.oP.json)
 {
  if(req.responseText!=""){
   var jsondata = eval('(' + req.responseText + ')');
   
   for (var i=0;i<jsondata.results.length;i++)
   {
    this.aSuggestions.push(  { 'id':jsondata.results[i].id, 'value':jsondata.results[i].value, 'info':jsondata.results[i].info }  );
   }
  }else{
   return null;
  }
  
  
 }
 else
 {

  var xml = req.responseXML;
 
  // traverse xml
  //
  var results = xml.getElementsByTagName('results')[0].childNodes;

  for (var i=0;i<results.length;i++)
  {
   if (results[i].hasChildNodes())
    this.aSuggestions.push(  { 'id':results[i].getAttribute('id'), 'value':results[i].childNodes[0].nodeValue, 'info':results[i].getAttribute('info') }  );
  }
 
 }
 
 this.idAs = "as_"+this.fld.id;
 

 this.createList(this.aSuggestions);

}

 

 

 

 


var clearText;

 

_bsn.AutoSuggest.prototype.createList_old = function(arr)
{
 if (arr.length == 0){
  return;
 }
 var pointer = this;
   clearText = this;
 
 // get rid of old list
 // and clear the list removal timeout
 //
 _bsn.DOM.removeElement(this.idAs);
 this.killTimeout();
 
 
 // create holding div
 //
 var div = _bsn.DOM.createElement("div", {id:this.idAs, className:this.oP.className}); 
 
 var hcorner = _bsn.DOM.createElement("div", {className:"as_corner"});
 var hbar = _bsn.DOM.createElement("div", {className:"as_bar"});
 var header = _bsn.DOM.createElement("div", {className:"as_header"});
 //header.appendChild(hcorner);
 //header.appendChild(hbar);
 div.appendChild(header);
 
 
 
 
 // create and populate ul
 //
 var ul = _bsn.DOM.createElement("ul", {id:"as_ul"});
 
 
 
 
 // loop throught arr of suggestions
 // creating an LI element for each suggestion
 //
 for (var i=0;i<arr.length;i++)
 {
  // format output with the input enclosed in a EM element
  // (as HTML, not DOM)
  //
  var val = arr[i].value;
  var st = val.toLowerCase().indexOf( this.sInput.toLowerCase() );
  var output = val.substring(0,st) + "<em>" + val.substring(st, st+this.sInput.length) + "</em>" + val.substring(st+this.sInput.length);
  
  
  var span   = _bsn.DOM.createElement("span", {}, output, true);
  if (arr[i].info != "")
  {
   var br   = _bsn.DOM.createElement("br", {});
   span.appendChild(br);
   var small  = _bsn.DOM.createElement("small", {}, arr[i].info);
   span.appendChild(small);
  }
  
  var a    = _bsn.DOM.createElement("a", { href:"#" });
  
  var tl   = _bsn.DOM.createElement("span", {className:"tl"}, " ");
  var tr   = _bsn.DOM.createElement("span", {className:"tr"}, " ");
  a.appendChild(tl);
  a.appendChild(tr);
  
  a.appendChild(span);
  
  a.name = i+1;
  a.onclick = function () { pointer.setHighlightedValue(); return false; }
  a.onmouseover = function () { pointer.setHighlight(this.name); }
  
  var li    = _bsn.DOM.createElement(  "li", {}, a  );
  
  ul.appendChild( li );
 }
 
 
 // no results
 //
 if (arr.length == 0)
 {
  var li    = _bsn.DOM.createElement(  "li", {className:"as_warning"}, this.oP.noresults  );
  
  ul.appendChild( li );
 }
 
 
 div.appendChild( ul );
 
 
 var fcorner = _bsn.DOM.createElement("div", {className:"as_corner"});
 var fbar = _bsn.DOM.createElement("div", {className:"as_bar"});
 var footer = _bsn.DOM.createElement("div", {className:"as_footer"});
 //footer.appendChild(fcorner);
 //footer.appendChild(fbar);
 div.appendChild(footer);
 
 
 // get position of target textfield
 // position holding div below it
 // set width of holding div to width of field
 //
 
 var pos = _bsn.DOM.getPos(this.fld);
 
 
 div.style.left   = pos.x + "px";
 
 div.style.top   = ( pos.y + this.fld.offsetHeight + this.oP.offsety +offtop) + "px";
 div.style.width  = (this.fld.offsetWidth+offwidth) + "px";
 div.style.backgroundColor= "white";
 div.style.zindex = "1000";
 div.align = "left";
 
 
 
 // set mouseover functions for div
 // when mouse pointer leaves div, set a timeout to remove the list after an interval
 // when mouse enters div, kill the timeout so the list won't be removed
 //
 div.onmouseover  = function(){ pointer.killTimeout() }
 div.onmouseout   = function(){ pointer.resetTimeout() }

 // add DIV to document
 //
 document.getElementsByTagName("body")[0].appendChild(div);
 
 //div.style.left = '-1000px';
 
 
 
 // currently no item is highlighted
 //
 this.iHighlighted = 0;
 /*
 popupWin = window.createPopup();
 
 var pbody = popupWin.document.body;
 pbody.innerHTML = div.innerHTML;
 //增加样式
 $(pbody).css({"position":"relative",border:"1px solid #000"});
 $(pbody).children("div.autosuggest").css({"position":"relative","background-position":"top","background-repeat":"no-repeat","padding":"0 0 0 0"});
 $(pbody).children("div.autosuggest div.as_header").css({"position":"relative","height":"1px","padding":"0","background-position":"top right","background-repeat":"no-repeat","overflow":"hidden"});
 //$(pbody).children("div.autosuggest div.as_header div.as_corner,div.autosuggest div.as_footer div.as_corner").css({"position":"absolute","top":"0","left":"0","height":"1px","width":"6px","background-position":"top left","background-repeat":"no-repeat"});
 //$(pbody).children("div.autosuggest div.as_header div.as_bar,div.autosuggest div.as_footer div.as_bar").css({"height":"1px","overflow":"hidden","background-color":"white"});
 $(pbody).children("div.autosuggest ul").css({"list-style":"none","margin":"0 0 -2px 0","padding":"0","overflow":"hidden","background-color":"white","border":"1px solid black"});
 $(pbody).children("div.autosuggest ul li").css({"color":"#ccc","padding":"0","margin":"0 2px 2px","text-align":"left"});
 $(pbody).children("div.autosuggest ul li a").css({"display":"block","text-decoration":"none","text-shadow":"#000 0px 0px 5px","position":"relative","padding":"0","width":"100%"});
 $(pbody).children("div.autosuggest ul li.as_highlight a:hover").css({"background-color":"#e3eefa"});
 $(pbody).children("div.autosuggest ul li a span").css({"display":"block","padding":"0px 0px"});
 $(pbody).children("div.autosuggest ul li a span small").css({"font-weight":"normal","color":"#999"});
 $(pbody).children("div.autosuggest ul li.as_highlight a span small").css({"color":"#ccc"});
 $(pbody).children("div.autosuggest ul li.as_highlight a").css({"color":"#444","background-color":"#e3eefa","background-position":"bottom right","background-repeat":"no-repeat"});
 $(pbody).children("div.autosuggest ul li.as_highlight a span").css({"background-position":"bottom left","background-repeat":"no-repeat"});
 //$(pbody).children("div.autosuggest ul li a .tl,div.autosuggest ul li a .tr").css({"background-image":"transparent","background-repeat":"no-repeat","width":"6px","height":"1px","position":"absolute","top":"0","padding":"0","margin":"0"});
 //$(pbody).children("div.autosuggest ul li a .tr").css({"right":"0"});
 //$(pbody).children("div.autosuggest ul li.as_highlight a .tl").css({"left":"0","background-position":"bottom left"});
 //$(pbody).children("div.autosuggest ul li.as_highlight a .tr").css({"right":"0","background-position":"bottom right"});
 //$(pbody).children("div.autosuggest ul li.as_warning").css({"font-weight":"bold","text-align":"center"});
 $(pbody).children("div.autosuggest ul em").css({"font-style":"normal"});
 
 popupWin.show(pos.x,pos.y + this.fld.offsetHeight + this.oP.offsety +offtop,div.clientWidth,div.clientHeight,document.body);
 */
 
 
 
 // remove list after an interval
 //
 var pointer = this;
 this.toID = setTimeout(function () { pointer.clearSuggestions() }, this.oP.timeout);
}

_bsn.AutoSuggest.prototype.createList = function(arr)
{
 if (arr.length == 0){
  return;
 }
 var pointer = this;
   clearText = this;
 
 // get rid of old list
 // and clear the list removal timeout
 //
 _bsn.DOM.removeElement(this.idAs);
 this.killTimeout();
 
 
 // create holding div
 //
 var div = _bsn.DOM.createElement("div", {id:this.idAs, className:this.oP.className}); 
 var divtemp = _bsn.DOM.createElement("div", {id:this.idAs, className:this.oP.className}); 
 
 // create and populate table
 //
 var table = _bsn.DOM.createElement("table", {id:"as_table"});
 table.width = "100%";
 table.cellpadding = 0;
 table.cellspacing = 0;
 table.style.border = "1px solid #000";
 
 
 
 // loop throught arr of suggestions
 // creating an LI element for each suggestion
 //
 for (var i=0;i<arr.length;i++)
 {
  // format output with the input enclosed in a EM element
  // (as HTML, not DOM)
  //
  var val = arr[i].value;
  var st = val.toLowerCase().indexOf( this.sInput.toLowerCase() );
  var output = val.substring(0,st) + "<em>" + val.substring(st, st+this.sInput.length) + "</em>" + val.substring(st+this.sInput.length);
  
  var tr = table.insertRow();
  var td = tr.insertCell();
  td.innerHTML = output;
  //td.style.border = "1px solid #111";
  td.style.color = "#000";
  td.style.backgroundColor = "#fff";
  td.style.cursor = "pointer";
  td.style.paddingLeft = "3px";
  
  if (arr[i].info != "")
  {
   var br   = _bsn.DOM.createElement("br", {});
   td.appendChild(br);
   var small  = _bsn.DOM.createElement("small", {}, arr[i].info);
   small.style.color = "#999";
   td.appendChild(small);
  }
  
  
  td.name = i+1;
  td.onmouseover = "parent.asObject."+this.fld.id+".setHighlight(this.name); parent.asObject."+this.fld.id+".killTimeout(); ";
  td.onmouseout = "parent.asObject."+this.fld.id+".clearHighlight(); parent.asObject."+this.fld.id+".resetTimeout();";
  //td.onclick = function () { pointer.setHighlightedValue(); return false; }  
  td.onclick = "parent.asObject."+this.fld.id+".setHighlightedValue();";
 }
 
 
 // no results
 //
 if (arr.length == 0)
 {
  var tr = table.insertRow();
  var td = tr.insertCell();
  td.innerText = this.oP.noresults;
 }
 
 
 div.appendChild( table );
 
 
 
 // get position of target textfield
 // position holding div below it
 // set width of holding div to width of field
 //
 
 var pos = _bsn.DOM.getPos(this.fld);
 
 
 div.style.left   = pos.x + "px";
 
 div.style.top   = ( pos.y + this.fld.offsetHeight + this.oP.offsety +offtop) + "px";
 div.style.width  = (this.fld.offsetWidth+offwidth) + "px";
 div.style.backgroundColor= "white";
 div.style.zindex = "1000";
 div.align = "left";
 
 
 
 // set mouseover functions for div
 // when mouse pointer leaves div, set a timeout to remove the list after an interval
 // when mouse enters div, kill the timeout so the list won't be removed
 //
 div.onmouseover  = function(){ pointer.killTimeout() }
 div.onmouseout   = function(){ pointer.resetTimeout() }

 // add DIV to document
 //
 document.getElementsByTagName("body")[0].appendChild(div);
 
 div.style.left = '-1000px';
 
 // currently no item is highlighted
 //
 this.iHighlighted = 0;
 
 popupWin = window.createPopup();
 
 var pbody = popupWin.document.body;
 pbody.innerHTML = div.innerHTML;
 //alert(pbody.innerHTML);
 popupWin.show(pos.x+1,pos.y + this.fld.offsetHeight +offtop+1,div.clientWidth,div.clientHeight,document.body);
 
 // remove list after an interval
 //
 var pointer = this;
 this.toID = setTimeout(function () { pointer.clearSuggestions() }, this.oP.timeout);
}

function  clearDiv(){
  if(clearText!=null){
  clearText.clearSuggestions();
  }
}

 

 

 

 

 

 

_bsn.AutoSuggest.prototype.changeHighlight = function(key)
{ 
 var list = _bsn.DOM.getElement("as_table");
 if (!list)
  return false;
 
 var n;

 if (key == 40)
  n = this.iHighlighted + 1;
 else if (key == 38)
  n = this.iHighlighted - 1;
 
 
 if (n > list.cells.length)
  n = list.cells.length;
 if (n < 1)
  n = 1;
 
 
 this.setHighlight(n);
}

 

_bsn.AutoSuggest.prototype.setHighlight = function(n)
{
 var list = _bsn.DOM.getElement("as_table");
 if (!list)
  return false;
 
 if (this.iHighlighted > 0)
  this.clearHighlight();
 
 this.iHighlighted = Number(n);
 
 var td = list.rows(this.iHighlighted-1).cells(0);
 td.style.backgroundColor = "#e3eefa";
 td.style.fontWeight = "bold";
 if(popupWin)
 {
  var table = popupWin.document.getElementById("as_table");
  var td = table.rows(this.iHighlighted-1).cells(0);
  td.style.backgroundColor = "#e3eefa";
  td.style.fontWeight = "bold";
 }
 this.killTimeout();
}


_bsn.AutoSuggest.prototype.clearHighlight = function()
{
 var list = _bsn.DOM.getElement("as_table");
 if (!list)
  return false;
 
 if (this.iHighlighted > 0)
 {
  var td = list.rows(this.iHighlighted-1).cells(0);
  td.style.backgroundColor = "#ffffff";
  td.style.fontWeight = "normal";
  if(popupWin)
  {
   var table = popupWin.document.getElementById("as_table");
   var td = table.rows(this.iHighlighted-1).cells(0);
   td.style.backgroundColor = "#ffffff";
   td.style.fontWeight = "normal";
  }
  this.iHighlighted = 0;
 }
}


_bsn.AutoSuggest.prototype.setHighlightedValue = function ()
{
 if (this.iHighlighted)
 {
  this.sInput = this.fld.value = this.aSuggestions[ this.iHighlighted-1 ].value;
  // move cursor to end of input (safari)
  //
  this.fld.focus();
  if (this.fld.selectionStart)
   this.fld.setSelectionRange(this.sInput.length, this.sInput.length);
  

  this.clearSuggestions();
  
  // pass selected object to callback function, if exists
  //
  if (typeof(this.oP.callback) == "function")
   this.oP.callback( this.aSuggestions[this.iHighlighted-1] );
 }
}

 

 

 

 

 

 

_bsn.AutoSuggest.prototype.killTimeout = function()
{
 clearTimeout(this.toID);
}

_bsn.AutoSuggest.prototype.resetTimeout = function()
{
 clearTimeout(this.toID);
 var pointer = this;
 this.toID = setTimeout(function () { pointer.clearSuggestions() }, 1000);
}

 

 

 

_bsn.AutoSuggest.prototype.clearSuggestions = function ()
{
 
 this.killTimeout();
 
 var ele = _bsn.DOM.getElement(this.idAs);
 var pointer = this;
 if (ele)
 {
  var fade = new _bsn.Fader(ele,1,0,250,function () { _bsn.DOM.removeElement(pointer.idAs) });
 }
 //linxuexin 增加修改成popupWin
 if(popupWin)
  popupWin.hide();
}

 

 

 

 


// AJAX PROTOTYPE _____________________________________________


if (typeof(_bsn.Ajax) == "undefined")
 _bsn.Ajax = {}

 

_bsn.Ajax = function ()
{
 this.req = {};
 this.isIE = false;
}

 

_bsn.Ajax.prototype.makeRequest = function (url, meth, onComp, onErr)
{
 
 if (meth != "POST")
  meth = "GET";
 
 this.onComplete = onComp;
 this.onError = onErr;
 
 var pointer = this;
 
 // branch for native XMLHttpRequest object
 if (window.XMLHttpRequest)
 {
  this.req = new XMLHttpRequest();
  this.req.onreadystatechange = function () { pointer.processReqChange() };
  this.req.open("GET", url, true); //
  this.req.send(null);
 // branch for IE/Windows ActiveX version
 }
 else if (window.ActiveXObject)
 {
  this.req = new ActiveXObject("Microsoft.XMLHTTP");
  if (this.req)
  {
   this.req.onreadystatechange = function () { pointer.processReqChange() };
   this.req.open(meth, url, true);
   this.req.send();
  }
 }
}


_bsn.Ajax.prototype.processReqChange = function()
{
 
 // only if req shows "loaded"
 if (this.req.readyState == 4) {
  // only if "OK"
  if (this.req.status == 200)
  {
   this.onComplete( this.req );
  } else {
   this.onError( this.req.status );
  }
 }
}

 

 

 

 


// DOM PROTOTYPE _____________________________________________


if (typeof(_bsn.DOM) == "undefined")
 _bsn.DOM = {}

 


_bsn.DOM.createElement = function ( type, attr, cont, html )
{
 var ne = document.createElement( type );
 if (!ne)
  return false;
  
 for (var a in attr)
  ne[a] = attr[a];
  
 if (typeof(cont) == "string" && !html)
  ne.appendChild( document.createTextNode(cont) );
 else if (typeof(cont) == "string" && html)
  ne.innerHTML = cont;
 else if (typeof(cont) == "object")
  ne.appendChild( cont );

 return ne;
}

 

 

_bsn.DOM.clearElement = function ( id )
{
 var ele = this.getElement( id );
 
 if (!ele)
  return false;
 
 while (ele.childNodes.length)
  ele.removeChild( ele.childNodes[0] );
 
 return true;
}

 

 

 

 

_bsn.DOM.removeElement = function ( ele )
{
 var e = this.getElement(ele);
 
 if (!e)
  return false;
 else if (e.parentNode.removeChild(e))
  return true;
 else
  return false;
}

 

 

_bsn.DOM.replaceContent = function ( id, cont, html )
{
 var ele = this.getElement( id );
 
 if (!ele)
  return false;
 
 this.clearElement( ele );
 
 if (typeof(cont) == "string" && !html)
  ele.appendChild( document.createTextNode(cont) );
 else if (typeof(cont) == "string" && html)
  ele.innerHTML = cont;
 else if (typeof(cont) == "object")
  ele.appendChild( cont );
}

 

 

 

 

_bsn.DOM.getElement = function ( ele )
{
 if (typeof(ele) == "undefined")
 {
  return false;
 }
 else if (typeof(ele) == "string")
 {
  var re = document.getElementById( ele );
  if (!re)
   return false;
  else if (typeof(re.appendChild) != "undefined" ) {
   return re;
  } else {
   return false;
  }
 }
 else if (typeof(ele.appendChild) != "undefined")
  return ele;
 else
  return false;
}

 

 

 

_bsn.DOM.appendChildren = function ( id, arr )
{
 var ele = this.getElement( id );
 
 if (!ele)
  return false;
 
 
 if (typeof(arr) != "object")
  return false;
  
 for (var i=0;i<arr.length;i++)
 {
  var cont = arr[i];
  if (typeof(cont) == "string")
   ele.appendChild( document.createTextNode(cont) );
  else if (typeof(cont) == "object")
   ele.appendChild( cont );
 }
}

 

 

 

 

_bsn.DOM.getPos = function ( ele )
{
 var ele = this.getElement(ele);

 var obj = ele;

 var curleft = 0;
 if (obj.offsetParent)
 {
  while (obj.offsetParent)
  {
   curleft += obj.offsetLeft
   obj = obj.offsetParent;
  }
 }
 else if (obj.x)
  curleft += obj.x;


 var obj = ele;
 
 var curtop = 0;
 if (obj.offsetParent)
 {
  while (obj.offsetParent)
  {
   curtop += obj.offsetTop
   obj = obj.offsetParent;
  }
 }
 else if (obj.y)
  curtop += obj.y;

 return {x:curleft, y:curtop}
}

 

 

 

 


// FADER PROTOTYPE _____________________________________________

 

if (typeof(_bsn.Fader) == "undefined")
 _bsn.Fader = {}

 

 

_bsn.Fader = function (ele, from, to, fadetime, callback)
{ 
 if (!ele)
  return false;
 
 this.ele = ele;
 
 this.from = from;
 this.to = to;
 
 this.callback = callback;
 
 this.nDur = fadetime;
  
 this.nInt = 50;
 this.nTime = 0;
 
 var p = this;
 this.nID = setInterval(function() { p._fade() }, this.nInt);
}

 


_bsn.Fader.prototype._fade = function()
{
 this.nTime += this.nInt;
 
 var ieop = Math.round( this._tween(this.nTime, this.from, this.to, this.nDur) * 100 );
 var op = ieop / 100;
 
 if (this.ele.filters) // internet explorer
 {
  try
  {
   this.ele.filters.item("DXImageTransform.Microsoft.Alpha").opacity = ieop;
  } catch (e) {
   // If it is not set initially, the browser will throw an error.  This will set it if it is not set yet.
   this.ele.style.filter = 'progid:DXImageTransform.Microsoft.Alpha(opacity='+ieop+')';
  }
 }
 else // other browsers
 {
  this.ele.style.opacity = op;
 }
 
 
 if (this.nTime == this.nDur)
 {
  clearInterval( this.nID );
  if (this.callback != undefined)
   this.callback();
 }
}

 

_bsn.Fader.prototype._tween = function(t,b,c,d)
{
 return b + ( (c-b) * (t/d) );
}

 

分享到：
| Struts2拦截器之AliasInterceptor
评论
2 楼 linxuexin 2009-03-18  
中文检索使用封装lucene的compass,自己再封装了一下
1 楼 storm119 2009-03-17  
不知你是如何处理中文检索的？可否告知。
发表评论

您还没有登录,请您登录后再发表评论

相关推荐

    完全仿谷歌搜索 显示信息条数

    在IT行业中，构建一个搜索引擎是复杂且技术性强的任务，尤其是要实现类似谷歌这样的高效、用户友好的搜索体验。本文将详细解析"完全仿谷歌搜索 显示信息条数"这一主题，涵盖智能提示、自动回传、谷歌搜索效果的实现...

    DWR实现Google自动提示功能

    在这个实例中，“DWR实现Google自动提示功能”是利用DWR框架来构建一个类似于Google搜索框的自动提示功能，用户在输入框中输入时，后台会实时地根据输入内容提供相关的建议，无需页面刷新。 一、DWR框架详解： DWR...

    ajax Suggest类似google的搜索提示效果

    Ajax Suggest是一个功能强大的JavaScript框架，它允许开发者创建类似Google搜索提示的效果，即在用户输入关键词时，自动显示与输入匹配的相关建议。这种实时的交互性增强了用户体验，减少了用户寻找和输入完整信息的...

    像google的文本框的ajaxl例子

    标题中的“像Google的文本框的Ajax例子”指的是在网页中实现类似Google搜索框的实时搜索建议功能，这种功能利用了Ajax（异步JavaScript和XML）技术，可以在用户输入时无需刷新页面就能从服务器获取并显示相关数据。...

    仿网易搜索引擎

    "仿网易搜索引擎"是一个项目，旨在模仿网易搜索引擎的功能和界面，提供给用户一个类似的搜索体验。这个项目可能涉及到了多个IT领域的知识点，包括但不限于前端开发、后端开发、数据库设计、网页交互以及搜索引擎优化...

    一个像百度百度搜索框,在用户输入时追加..

    标题中的“一个像百度搜索框,在用户输入时追加..”指的是实现一个与百度搜索框类似的功能，即在用户输入关键词时，自动提供相关的搜索建议。这种功能通常基于JavaScript库，如jQuery，来实现动态加载和显示推荐内容...

    类似百度、google的输入提示框

    通过上述解析，我们可以看到autopoint.js实现了类似百度、Google输入提示框的功能，不仅考虑了浏览器兼容性问题，还提供了良好的用户体验。这种技术方案对于开发具有相似需求的应用具有很高的参考价值。未来还可以在...

    飞飞Ajax模仿google提示输入框 v1.8.rar

    4. **JavaScript库和框架**：虽然具体实现可能不依赖特定的JavaScript库或框架，但类似的组件通常会用到jQuery、React、Vue等，这些工具可以简化DOM操作，提高代码的可维护性和性能。 5. **JSON数据格式**：在Ajax...

    MapsFinder:项目搜索地点通过Google地图共享

    【描述】"MapsFinder是一个旨在帮助用户通过Google地图实现地点搜索和共享的项目。它利用了Google Place API的自动完成功能，为用户提供了一个便捷的方式来查找和分享全球各地的地理位置信息。这个工具特别适合那些...

    [主机域名]易捷域名查询系统v1.0_ej99domainv1.0.zip

    3. 搜索建议：提供智能的域名建议，根据用户输入的部分域名，给出可用的相似域名。 4. 域名解析检查：除了查询注册状态，系统还应能检查域名的DNS解析情况，包括A记录、CNAME记录等。 5. 域名历史追踪：查询域名的...

    Delphi and AJAX

    从谷歌建议（Google Suggests）、Gmail、谷歌地图（Google Maps），到一系列创新的AJAX驱动网站，如Protopage、Press-display、Ta-da Lists以及微软的实验性AJAX站点start.com，这些网站不仅展示了AJAX的强大功能，...

    高仿百度糯米

    1. **移动应用开发**：这个项目可能是为Android或iOS平台开发的原生应用，或者是一个跨平台的框架，如React Native、Flutter或Ionic。 2. **用户界面设计**：遵循百度糯米的设计风格，开发者需要理解用户体验（UX）...

    Ajax实战(Ajax in Action)

    3. **实时反馈**：比如搜索建议，用户输入时即返回相关结果，无需完整输入后才显示。 4. **富互联网应用(RIA)**：Ajax可以构建类似桌面应用的Web应用，如Google Maps的平移和缩放功能。 **四、Ajax的挑战与解决...

    mvhrzg.github.io

    6. **响应式设计**：JavaScript框架，如jQuery或现代的React、Vue或Angular，可以帮助实现跨设备兼容的响应式布局，确保应用在不同屏幕尺寸上都能正常工作。 在"mvhrzg.github.io-master"这个压缩包中，我们可能会...

    Traj_fuc

    5. **框架与库**：项目可能依赖一些特定的框架或库，如用于数据处理的Spark或Flink，用于机器学习的Scikit-learn或TensorFlow，或者用于GIS操作的GDAL或QGIS。这些工具能加速开发进程，提供现成的功能。 6. **数据...

    我需要一些人教我php和其他语言的帮助，我将感激不尽

    描述中提到的建议——通过搜索引擎寻找教程，是一个非常实用的方法。Google等搜索引擎可以提供大量的在线教程、文档、博客和视频课程，这些都是自我学习的强大工具。对于初学者来说，理解每种语言的基本概念、语法...

    ng-rksf

    "ng-rksf"看起来像是一个基于...为了深入理解"ng-rksf"，建议查看其源代码、阅读文档或者搜索相关的GitHub仓库，以便获取更详尽的信息。如果你计划使用或贡献这个项目，理解Angular的基本概念和最佳实践是必不可少的。

Magicbox
Global site tag (gtag.js) - Google Analytics