//**************************************************************************
// DragSearchHandler For Google
//
// Daum Communications
// Front End Technology Center, Contents Front End Technology TFT
// By.. wjlee - (2009.02.19) / Lst Modify : 2009.03.24
//
// Modified By Kjwon15 at 2011-02-04
//**************************************************************************
__jsDragSearchHandler = (function() {
try{
var DragSelectionRange, DragSelectionTxt, DragSelectionTxtOld, DragSelectionTxtHtml, DragSelectionBtn, DragNewRange;
var DragPos, DragSelectionLayer, DragChkO, DragDispChk;
var DragSchIdPos = "DragSchLayerPos";
var DragSchIdLay = "DragSchLayer";
var OPERA=navigator.userAgent.indexOf("Opera");
_jsAddEvent = function(object, type, listener) {
if(object.addEventListener) {if(type=='mousewheel')type='DOMMouseScroll'; object.addEventListener(type, listener, false)}
else { object.attachEvent("on"+type, listener); }
}
_jsStopEvent = function(event) {
var e=event || window.event;
if(e.preventDefault) {e.preventDefault(); e.stopPropagation(); }
else {e.returnValue = false; e.cancelBubble = true;}
}
_jsRemove = function(element) {
element = document.getElementById(element);
element.parentNode.removeChild(element);
return element;
}
_jsGetStyle=function(el, style) {
var value = el.style[style];
if(!value) {
if(document.defaultView && document.defaultView.getComputedStyle && OPERA == -1) {
var css = document.defaultView.getComputedStyle(el, null);
value = css ? css[style] : null;
} else if (el.currentStyle) {
if( style == "backgroundPosition" ) value = el.currentStyle["backgroundPositionX"] + " " + el.currentStyle["backgroundPositionY"] ;
else value = el.currentStyle[style];
}
}
return value == 'auto' ? null : value;
}
_jsTrim = function(s) { return s.replace(/(^\s*)|(\s*$)/g, "") }
_jsDragHandler = function(event) {
try {
DragSelectionTxtOld = DragSelectionTxt;
if (DragSelectionLayer || DragSelectionBtn) _jsCleanSelection();
if(window.getSelection) {
DragSelectionRange = window.getSelection();
DragSelectionTxt = DragSelectionRange.toString();
DragSelectionTxtHtml = DragSelectionTxt
} else if(document.selection) {
DragSelectionRange = document.selection.createRange();
DragSelectionTxt = DragSelectionRange.text.toString();
DragSelectionTxtHtml = DragSelectionRange.htmlText;
}
DragSelectionTxt = _jsTrim(DragSelectionTxt);
if ((DragSelectionTxt != "")&&(DragSelectionTxt != DragSelectionTxtOld)&&(DragSelectionTxt.length > 1)) {
_jsGetStrChk(event);
if (DragChkO) {
_jslayerHandler();
_jsStopEvent(event);
} else {
_jsCleanSelection();
}
} else {
_jsCleanSelection();
}
} catch (e) { _jsCleanSelection(); }
}
_jsGetStrChk= function(event) {
var strChkL = DragSelectionTxtHtml.length;
DragChkO = true;
if (DragSelectionTxt.indexOf(" ") > 0) {
if(DragSelectionTxt.length > 10) DragChkO = false;
} else {
if(DragSelectionTxt.length > 20) DragChkO = false;
}
if (DragChkO) {
if (navigator.appName == "Netscape") {
_event = event;
_nodeName = _event.target.nodeName;
} else {
_event = window.event;
_nodeName = _event.srcElement.nodeName;
}
if(_nodeName=="INPUT"||_nodeName=="SELECT"||_nodeName=="TEXTAREA"||_nodeName=="FIELDSET") DragChkO = false;
if(DragChkO){
if (strChkL > 4) {
strChkBr = _jsTrim(DragSelectionTxtHtml.substring ( strChkL - 4, strChkL));
if (strChkBr.toUpperCase() == "<BR />") DragChkO = false;
if (DragSelectionTxtHtml.toUpperCase().indexOf("</DT>") > 0) DragChkO = false;
}
}
}
}
_jslayerHandler = function() {
try {
DragSelectionBtn = document.createElement('span')
DragSelectionBtn.id = DragSchIdPos;
DragSelectionBtn.style.position = 'absolute';
DragSelectionBtn.style.width = '0px';
DragSelectionBtn.style.height = '0px';
DragSelectionBtn.style.fontSize = '0px';
var range = DragSelectionRange.getRangeAt(0);
DragNewRange = document.createRange();
DragNewRange.setStart(DragSelectionRange.focusNode, range.endOffset);
DragNewRange.insertNode(DragSelectionBtn);
if(!document.getElementById(DragSchIdLay)){
var el_body = document.getElementsByTagName("body");
var el_DragSchLayer = document.createElement("span");
el_DragSchLayer.setAttribute("id", DragSchIdLay);
el_body[0].appendChild(el_DragSchLayer);
document.getElementById(DragSchIdLay).style.display = "none";
}
DragSelectionLayer = document.getElementById(DragSchIdLay);
DragSelectionLayer.style.cssText =
'display:block;position:absolute;cursor:pointer;z-index:9000;'+
'color:#ffffff;font-weight:bold;font-size:10pt;margin:-23px 0 0 -5px;padding:3px;'+
'background:-webkit-gradient(linear, 0 0, 0 bottom, from(#7870ab), to(#202020));'+
'background:-moz-linear-gradient(#7870ab,#202020);'+
'-webkit-box-shadow: #dddddd 0px 0px 5px;'+
'-moz-box-shadow: #dddddd 0px 0px 5px;'+
'-webkit-border-radius: 3px;'+
'-moz-border-radius: 3px;';
DragSelectionLayer.innerHTML = 'Search at Google';
_jsPositionHandler();
_jsAddEvent(DragSelectionLayer, 'mouseup', _jsLinkHandler);
_jsAddEvent(window,"resize",_jsPositionHandler);
DragDispChk = self.setInterval(_jsChkNodeStyle,500);
} catch (e) { _jsCleanSelection(); }
}
_jsPositionHandler = function(e) {
if (DragSelectionLayer && DragSelectionBtn){
DragPos = _jsPositionOffset(document.getElementById(DragSchIdPos));
DragSelectionLayer.style.top = DragPos[0] +"px";
DragSelectionLayer.style.left = DragPos[1] +"px";
}
}
_jsPositionOffset= function(e) {
var valueT = 0, valueL = 0;
do {
valueT += e.offsetTop || 0;
valueL += e.offsetLeft || 0;
e = e.offsetParent;
} while (e);
if(valueT < 22){valueT = valueT + 40;}
if(valueL + 70 > document.body.offsetWidth) {
valueL = valueL - 60;
}
return [valueT, valueL];
}
_jsLinkHandler = function (event) {
var url = "http://google.com/search?q="+ encodeURIComponent(DragSelectionTxt);
var searchpop = window.open(url);
if (searchpop) searchpop.focus();
_jsCleanSelection();
_jsStopEvent(event);
}
_jsChkNodeStyle = function() {
if (document.getElementById("DragSchLayerPos")) {
var p = document.getElementById("DragSchLayerPos");
do {
if(p.nodeType != 1) { p = null; break; } else { p = p.parentNode; }
var ChkDisplay = _jsGetStyle(p,"display")
if (ChkDisplay == "none") {
_jsCleanSelection();
break;
}
} while(p.nodeName.toUpperCase() != "BODY")
}
}
_jsCleanSelection = function() {
try{
DragSelectionRange = null;
DragSelectionBtn = null;
DragSelectionTxt = '';
DragNewRange && DragNewRange.pasteHTML && DragNewRange.pasteHTML('');
DragNewRange = null;
if (document.getElementById(DragSchIdPos)) _jsRemove(DragSchIdPos);
if (document.getElementById(DragSchIdLay)) document.getElementById(DragSchIdLay).style.display = "none";
if (document.getElementById(DragSchIdLay)) _jsRemove(DragSchIdLay);
clearInterval(DragDispChk);
} catch (e) {}
}
return {
initialize: function() {
_jsAddEvent(document, 'mouseup', _jsDragHandler);
}
};
} catch (e) {}
})();
__jsDragSearchHandler.initialize();