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/**
* jQuery gComplete v0.1.2 - autocomplete using "Google Web API"
*
* Terms of Use - jQuery gComplete
* under the MIT (http://www.opensource.org/licenses/mit-license.php) License.
*
* Copyright 2010 xlune.com All rights reserved.
* (http://blog.xlune.com/2010/02/jquerygcomplete.html)
*/
(function ($)
{
$.fn.extend({
gcomplete: function(option)
{
var _self = $(this);
if(_self.length == 0 ){
return;
};
var _tag = _self.get(0).tagName.toLowerCase();
if(_tag == "input" && _self.attr("type") == "text")
{
/* vars */
var _opt,_win,_intval;
var _prefix = "gcomplete-";
var def_option = {
style: "default",
url: "//suggestqueries.google.com/complete/search",
query_key: "q",
param: {
output: "json",
client:"firefox"
},
limit: 10,
cycle: 500,
effect: false,
oneword: false,
callbackUseOnlyString: false,
parseFunc: function(result)
{
return result[1];
}
};
/* funcs */
function cycleStart()
{
_intval = setInterval(cycleEngine, getOption('cycle'));
$.browser.mozilla ? _self.keypress(keyPress) : _self.keydown(keyPress);
if(typeof(_self.mousewheel)=="function")
{
_self.mousedown(mouseDown);
$(window).mousewheel(mouseWheel);
}
};
function cycleStop()
{
clearInterval(_intval);
_opt.param[_opt.query_key] = "";
hideWindow();
$.browser.mozilla ? _self.unbind("keypress", keyPress) : _self.unbind("keydown", keyPress);
if(typeof(_self.mousewheel)=="function")
{
_self.unbind("mousedown", mouseDown);
$(window).unbind("mousewheel", mouseWheel);
}
};
function cycleEngine()
{
var str = _self.val();
if(str.length > 0 && str.replace(/ +$/, "") != _opt.param[_opt.query_key].replace(/ +$/, ""))
{
request(str);
}
else if(str.length <= 0)
{
hideWindow();
}
};
function request(query)
{
var param = {};
_opt.param[_opt.query_key] = query;
for(var i in _opt.param)
{
param[i] = _opt.param[i];
}
if(getOption('oneword'))
{
param[_opt.query_key] = query.split(" ").pop();
if(!param[_opt.query_key])
{
hideWindow();
return false;
}
}
if(getOption("callbackUseOnlyString"))
{
var script = $("#__gcompleteaccess");
var key = "gcompletef"+getUniqueString();
param['callback'] = key;
window[key] = callBack;
if(script.size() > 0)
{
script.attr("src", _opt.url + "?" + $.param(param));
}
else
{
$("<script />")
.attr("type", "text/javascript")
.attr("id", "__gcompleteaccess")
.attr("src", _opt.url + "?" + $.param(param))
.appendTo("body");
}
}
else
{
$.get(
_opt.url,
param,
callBack,
'jsonp'
);
}
};
function getUniqueString()
{
var arr = [];
var list = "abcdefghij".split("");
var time = (new Date()).getTime().toString().split("");
arr.push(list[Math.floor(Math.random()*list.length)]);
for(var i=0,imax=time.length; i<imax; i++)
{
arr.push(list[time[i]]);
}
return arr.join("");
};
function callBack(data)
{
try {
var list = getOption("parseFunc")(data);
if(list.length > 0)
{
showWindow(list);
}
else
{
hideWindow();
}
} catch(e) {
cycleStop();
}
};
function showWindow(list)
{
//console.log(list[0]);
if(list)
{
_win.empty();
var dl,numMax=getOption("limit");
for(var i=0,imax=Math.min(list.length, numMax); i<imax; i++)
{
dl = $('<dl />').appendTo(_win);
if(typeof(list[i])=="string")
{
dl.append($("<dt />").text(list[i]));
dl.data("text", list[i]);
}
else
{
dl.append($("<dt />").text(list[i][0]));
dl.append($("<dd />").text(list[i][1]));
dl.data("text", list[i][0]);
}
dl.hover(
function(e){
focusList(this);
},
function(e){
blurList(this);
}
)
.mousedown(function(){
focusList(this);
selectList();
});
}
}
if(getOption('effect') && _win.css("display") == "none")
{
_win.fadeIn(300);
}
else
{
_win.show();
}
};
function hideWindow()
{
if(getOption('effect'))
{
_win.fadeOut(100);
}
else
{
_win.hide();
}
};
function focusList(item)
{
blurList(_win.find("dl"));
$(item)
.addClass("over")
.attr("rel", "select");
};
function blurList(item)
{
$(item)
.removeClass("over")
.removeAttr('rel');
};
function selectList()
{
var s = _win.find("dl[rel=select]");
if(s.size())
{
if(getOption('oneword'))
{
var words = _self.val().split(' ');
words.pop();
words.push(s.data("text"));
words.push("");
_self.val(words.join(' '));
}
else
{
var TheVal=$('#field111').val();
if(TheVal !=''){
TheVal=TheVal+',';
}
$('#field111').val( TheVal + s.data("text"));
_self.val('Search New Keyword...') ;
//_self.val(s.data("text"));
}
return true;
}
return false;
};
function initOption(option)
{
_opt = option || {};
for(var i in def_option)
{
if(!_opt.hasOwnProperty(i))
{
_opt[i] = def_option[i];
}
}
_opt.param[_opt.query_key] = "";
_self.data("_gcomp", _opt);
};
function initWindow()
{
_win = $('<div />')
.addClass(_prefix+getOption("style")+"-box")
.css({
position: "absolute",
left: getLeftPos(),
top: getTopPos(),
'z-index': "9999"
})
.insertAfter(_self);
_win.hide();
};
function getLeftPos()
{
return _self.position().left;
};
function getTopPos()
{
var tp = _self.position().top + _self.height();
tp += str2num(_self.css("margin-top"))
+str2num(_self.css("padding-top"))
+str2num(_self.css("border-top-width"))
+str2num(_self.css("padding-bottom"))
+str2num(_self.css("border-bottom-width"));
return tp;
};
function str2num(str)
{
var num = Number(str.replace('px', ''));
return isNaN(str) ? 1 : num ;
};
function getOption(key)
{
if(_opt.hasOwnProperty(key))
{
return _opt[key];
}
return null;
};
function mouseDown(e)
{
switch(e.button)
{
case 1:
if(!$.browser.msie && selectList())
{
return false;
}
break;
case 4:
if($.browser.msie && selectList())
{
return false;
}
break;
default:
break;
}
return true;
};
function keyPress(e)
{
var s = _win.find("dl[rel=select]");
switch(e.keyCode)
{
case 27:
cycleStop();
break;
case 38:
focusList(s.prev().size() ? s.prev() : _win.find("dl:last"));
return false;
break;
case 40:
focusList(s.next().size() ? s.next() : _win.find("dl:first"));
return false;
break;
case 13:
if(selectList())
{
return false;
}
break;
default:
break;
};
return true;
};
function mouseWheel(e, delta)
{
if(_win.find("dl").size())
{
var s = _win.find("dl[rel=select]");
var type = delta < 0;
if(s.size())
{
focusList(type
? (s.next().size() ? s.next() : _win.find("dl:first"))
: (s.prev().size() ? s.prev() : _win.find("dl:last"))
);
}
else
{
focusList(type
? _win.find("dl:first")
: _win.find("dl:last")
);
}
}
return false;
};
/* setup */
initOption(option);
initWindow();
/* events */
_self.focus(function(){
cycleStart();
});
_self.blur(function(){
cycleStop();
});
}
return _self;
}
});
})(jQuery);