JS sample code to implement automatic matching function of imitating Baidu input box_javascript skills

Many websites now have this effect. Enter a character in the text box, and the matching content will appear below. This code demonstrates how this function is completed. Of course, this is static. You can change the prompt The content is read from the database, which requires the use of AJAX.

Copy code The code is as follows: 带输入匹配的文本框 body,div { font-family:verdana; line-height:100%; font-size:10pt; } input { width:320px; } h1 { text-align:center; font-size:2.2em; } #divc { border:1px solid #555; } .des { width:500px; background-color:lightyellow; border:1px solid #555; padding:25px; margin-top:25px; } .mouseover { color:#ffffff; background-color:highlight; width:100%; cursor:default; } .mouseout { color:#000; width:100%; background-color:#ffffff; cursor:default; } function jsAuto(instanceName,objID) { this._msg = []; this._x = null; this._o = document.getElementById( objID ); if (!this._o) return; this._f = null; this._i = instanceName; this._r = null; this._c = 0; this._s = false; this._v = null; this._o.style.visibility = "hidden"; this._o.style.position = "absolute"; this._o.style.zIndex = "9999"; this._o.style.overflow = "auto"; this._o.style.height = "50"; return this; };

jsAuto.prototype.directionKey=function() { with (this) { var e = _e.keyCode ? _e.keyCode : _e.which; var l = _o.childNodes.length; (_c>l-1 || _c<0) ? _s=false : "";

if( e==40 && _s ) { _o.childNodes[_c].className="mouseout"; (_c >= l-1) ? _c=0 : _c ++; _o.childNodes[_c].className="mouseover"; } if( e==38 && _s ) { _o.childNodes[_c].className="mouseout"; _c-- _o.childNodes[_c].className="mouseover"; } if( e==13 ) { if(_o.childNodes[_c] && _o.style.visibility=="visible") { _r.value = _x[_c]; _o.style.visibility = "hidden"; } } if( !_s ) { _c = 0; _o.childNodes[_c].className="mouseover"; _s = true; } }};

// mouseEvent. jsAuto.prototype.domouseover=function(obj) { with (this) { _o.childNodes[_c].className = "mouseout"; _c = 0; obj.tagName=="DIV" ? obj.className="mouseover" : obj.parentElement.className="mouseover"; }}; jsAuto.prototype.domouseout=function(obj) { obj.tagName=="DIV" ? obj.className="mouseout" : obj.parentElement.className="mouseout"; }; jsAuto.prototype.doclick=function(msg) { with (this) { if(_r) { _r.value = msg; _o.style.visibility = "hidden"; } else { alert("javascript autocomplete ERROR :\n\n can not get return object."); return; } }};

// object method; jsAuto.prototype.item=function(msg) { if( msg.indexOf(",")>0 ) { var arrMsg=msg.split(","); for(var i=0; i { arrMsg[i] ? this._msg.push(arrMsg[i]) : ""; } } else { this._msg.push(msg); } this._msg.sort(); }; jsAuto.prototype.append=function(msg) { with (this) { _i ? "" : _i = eval(_i); _x.push(msg); var div = document.createElement("DIV"); //bind event to object. div.onmouseover = function(){_i.domouseover(this)}; div.onmouseout = function(){_i.domouseout(this)}; div.onclick = function(){_i.doclick(msg)}; var re = new RegExp("(" + _v + ")","i"); div.style.lineHeight="140%"; div.className = "mouseout"; if (_v) div.innerHTML = msg.replace(re , " $1 "); div.style.fontFamily = "verdana"; _o.appendChild(div); }}; jsAuto.prototype.display=function() { with(this) { if(_f && _v!="") { _o.style.left = _r.offsetLeft; _o.style.width = _r.offsetWidth; _o.style.top = _r.offsetTop + _r.offsetHeight; _o.style.visibility = "visible"; } else { _o.style.visibility="hidden"; } }}; jsAuto.prototype.handleEvent=function(fValue,fID,event) { with (this) { var re; _e = event; var e = _e.keyCode ? _e.keyCode : _e.which; _x = []; _f = false; _r = document.getElementById( fID ); _v = fValue; _i = eval(_i); re = new RegExp("^" + fValue + "", "i"); _o.innerHTML="";

for(var i=0; i { if(re.test(_msg[i])) { _i.append(_msg[i]); _f = true; } }

_i ? _i.display() : alert("can not get instance");

if(_f) { if((e==38 || e==40 || e==13)) { _i.directionKey(); } else { _c=0; _o.childNodes[_c].className = "mouseover"; _s=true; } } }}; window.onerror=new Function("return true;"); //-->

var jsAutoInstance = new jsAuto("jsAutoInstance","divc"); jsAutoInstance.item("a-start,b-start,c-start,d-start,e-start,f-start,g-start,h-start,i-start,j-start,k-start,l-start,m-start,n-start,o-start,p-start,q-start,r-start,s-start,t-start,u-start,v-start,w-start,x-start,y-start,z-start,z-start,a-start,b-start,c-start,d-start,e-start,f-start,g-start,h-start,i-start,j-start,k-start,l-start,m-start,n-start,o-start,p-start,q-start,r-start,s-start,t-start,u-start,v-start,w-start,x-start,y-start,z-start,u-start,v-start,w-start,x-start,y-start,z-start,z-start,a-start,b-start,c-start,y-start,z-start,z-start,a-start,b-start,c-start,d-start,e-start,f-start,g-start,h-start,i-start,s-start,w-start,x-start,y-start,z-start,z-start,a-start,b-start,c-start,d-start,e-start,f-start,g-start,h-start,i-start,a-start,b-start,c-start,d-start,e-start,z-start,z-start"); jsAutoInstance.item("blueDestiny"); jsAutoInstance.item("BlueMiracle,Blue"); jsAutoInstance.item("angela,geniuslau"); jsAutoInstance.item("never-online"); //--> 请在输入框输入一个字母：

JS sample code to implement automatic matching function of imitating Baidu input box_javascript skills

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