/*
*
 * Javascript library for EDSearch
 * Using Google Custom Search and ExtJS 2.0
 *   
 */

function escapeHTML (str)
{
   var div = document.createElement('div');
   var text = document.createTextNode(str);
   div.appendChild(text);
   return div.innerHTML;
};

var searchForm = null;
var referer = "";
 
	function send(message){		
		var conn = new Ext.data.Connection();
		conn.request({
			url:'log.php',
			method:'POST',
			params: {"keywords": message, "ACTION_ID": "SEARCH", "referer": referer},
			success: function(responseObject) {			
				referer = "";
				//alert(responseObject.responseText);
			},
			failure: function() {
				//alert("Something fail");
			}			
		});
	}
	
	google.load("search", "1");
	
	function cse() {	
	  this.leftControl = new GSearchControl();
	  this.rightControl = new GSearchControl();
	  
	  searchForm = new google.search.SearchForm(true, document.getElementById("searchform"));
	  // bind clear and submit functions
	  searchForm.setOnSubmitCallback(this, cse.prototype.onSubmit);
	  searchForm.setOnClearCallback(this, cse.prototype.onClear);
	  //
	  // configure left control	  
	  var searcher = new GwebSearch();
	  
	  var cseID = "010826869990697334465:nzn4eyycb-4";	  
	  searcher.setSiteRestriction(cseID);	  
	  
	  
	  var options = new GsearcherOptions();
	  options.setExpandMode(GSearchControl.EXPAND_MODE_OPEN);

	  this.leftControl.addSearcher(searcher,options);
	  this.leftControl.setNoResultsString(google.search.SearchControl.NO_RESULTS_DEFAULT_STRING)
	  
	  // configure right control
	  searcher = new GwebSearch();
	  //
	  // restricted to a group of sites
	  //
	  //cseID = "007843203786398856593:llvc9c9bpva";
	  //searcher.setSiteRestriction(cseID);

	  cseID = "010826869990697334465:dhqjkrlp1hm"
	  searcher.setSiteRestriction(cseID);

	  searcher.setSearchCompleteCallback(this, cse.prototype.SearchComplete)
	  this.rightControl.addSearcher(searcher,options);	  
	  this.rightControl.setNoResultsString(google.search.SearchControl.NO_RESULTS_DEFAULT_STRING)
	  //
	  this.leftControl.setResultSetSize(GSearch.LARGE_RESULTSET);
	  this.rightControl.setResultSetSize(GSearch.LARGE_RESULTSET); 	  
	  
	  // draw search control
	  this.leftControl.draw(document.getElementById("leftSearchControl"));
	  this.rightControl.draw(document.getElementById("rightSearchControl"));
	  
	  // execute a starter search
	  //searchForm.execute("profiles");
	  

	  // enable autocomplete
		$(document).ready(function() {		
			  enableAutoComplete();
		});

	}
	
	  // when the form fires a submit, grab its
      // value and call the left and right control
      cse.prototype.onSubmit = function(form) {
	var q = form.input.value;				
        if (q && q!= "") {			
          this.leftControl.execute(q);
          this.rightControl.execute(q);
	  send(q);
	  setSearchTitle(escapeHTML(q));
        }
        return false;
      }


      // when the form fires a clear, call the left and right control
      cse.prototype.onClear = function(form) {
        this.leftControl.clearAllResults();
        this.rightControl.clearAllResults();
        form.input.value = "";
        clearSearchTitle();
        return false;
      }
	  
	  cse.prototype.SearchComplete1 = function(form) {
	     alert("In complete call back");
	     return false;
	  }
	//	
	// End of CSE class
	
	function OnLoad(){
		new cse();
	}
	
	google.setOnLoadCallback(OnLoad);

function setSearchTitle(q) {
	var st = document.getElementById("div_search_title");
	st.innerHTML = "<span class=\"text\">搜尋結果 <strong>" + q + "</strong></span>";
	return;
}

function clearSearchTitle() {
	var st = document.getElementById("div_search_title");
	st.innerHTML = "<span class=\"text\">搜尋結果 </span>";
	return;
}

function search(keyword) {
	searchForm.execute(keyword);
	return;
}

function enableAutoComplete() {
	$("input[name=search]").each(function(k,v) {
		if (k == 0) $(v).attr('id','hkecl_search_box');
	});
	if ($("#hkecl_search_box")) {
		options = { 		
				category:'search_engine',
				minChars:1,
				maxHeight:300,
				width:$("#hkecl_search_box").css('width'),
				onSelect: function(value, data){
					search(value);
				}
			  };
		sb = new search_Autocomplete("hkecl_search_box", options);
		sb.init();
	}
	return;
}