/*
===================================
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED.  IN NO EVENT SHALL THE PRODUCER OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
THE PRODUCER:
Andreas Imhof
EDV-Dienstleistungen
CH-Guemligen, Switzerland
www.aiedv.ch

Version: 7.1
Version date: 20111215
===================================
*/

function enable_local_search() { // enable the local document search
	var localsearch_enabled = 1;	// init to enabled
	var localsearch_enabled_css = get_css_value("enable_local_search","zIndex");	// check if we have set local search flag style in css
	if ((typeof localsearch_enabled_css != "undefined") && (localsearch_enabled_css != "")) {	// found helper style
		localsearch_enabled = parseInt(localsearch_enabled_css);
		if (typeof(init_local_search) != 'undefined') {	// defined in searchlocal.js
			setTimeout("init_local_search()", 20);
		}
	}
}

function locsearch_attachVKI() {
	try {
		if (_sb_settings.addVirtualKeybord && !isTouchDevice) {
			var searchInput = document.getElementById('localsearchentry_field');
			//alert(searchInput.getAttribute("VKI_attached"));
			if (!searchInput.getAttribute("VKI_attached")) VKI_attach(searchInput);
			//alert("VKI to local search attached: "+searchInput.getAttribute("VKI_attached"));
		}
	} catch(e){
		setTimeout("locsearch_attachVKI()",200);
	}
}
function init_local_search() {
	var localsearchentry_win=document.createElement("div"); //create window div
	localsearchentry_win.id="localsearchentry_win";
	localsearchentry_win.className= "localsearchentry_win";
	var wincont='';
	wincont='<div class="localsearchentry_cont" id="localsearchentry_cont">';
	if (_sb_settings.addVirtualKeybord && !isTouchDevice) {
		wincont+='<input class="localsearchentry_field" id="localsearchentry_field" type="text" title="' + lst[1][cur_lang_ID] + '" value="' + lst[0][cur_lang_ID] + '">';	// simply no keypress event
	}
	else {
		wincont+='<input class="localsearchentry_field" id="localsearchentry_field" type="text" title="' + lst[1][cur_lang_ID] + '" value="' + lst[0][cur_lang_ID] + '" onkeypress="handleSearchFieldKeyPress(event)">';
	}

	wincont+='</div>';
	localsearchentry_win.innerHTML=wincont;
	document.getElementById("sb_body").appendChild(localsearchentry_win);

	// evtl. add a virtual keyboard to search input field
	locsearch_attachVKI();

	// make the local search field draggable
	try {
		YUI().use("dd-drag",
			function(Y) {
				if (_sb_settings.enableDraggableObjects > 0) {
					// make the search field draggable
					try {
						var sldd = new Y.DD.Drag({
							node: '#localsearchentry_win'
							});
					} catch(e) {}
				}
				// handle clicks
				Y.one('#localsearchentry_field').on('click', function(e) {
						// clear the search field if '&nbsp;&nbsp;Search' is shown
						try {
							if (document.getElementById("localsearchentry_field").value.indexOf("\u00a0\u00a0") == 0) document.getElementById("localsearchentry_field").value = "";
						} catch(e) {}
						e.preventDefault();
						e.stopPropagation();
					});
				// start search when clicked on lupe
				if (!isTouchDevice) {
					Y.one('#localsearchentry_win').on('click', function(e) {
						do_localsearch(e);
						});
				}
				else {
					Y.one('#localsearchentry_win').on('touchstart', function(e) {
						do_localsearch(e);
						});
				}
			});
	} catch(e){}
}


function handleSearchFieldKeyPress(e,form) {
	var key=e.keyCode || e.which;
	if (key==13) do_localsearch(e);
}

function do_localsearch(e) {
	//alert("do_localsearch called freom: \n" + e.target)
	var searchterm = "";
	if (document.getElementById("localsearchentry_field") != null) {
		try { searchterm = document.getElementById("localsearchentry_field").value; } catch(e){}
	}
	else {
		try { searchterm = document.getElementById("ft_searchentry_field").value; } catch(e){ return(false); }
	}
	if (searchterm == "") return(false);
	if (searchterm.indexOf("\u00a0\u00a0") == 0) return(false);
	//alert("searchterm: " + searchterm);
	goto_searchterm(searchterm,true,false);
	return(false);
}

var searchMaxResults = 50;
var searchMaxTextLength = 200;
function goto_searchterm(searchstr, flipage, bestmatchonly) {
	if ((searchstr == null) || (searchstr == "")) return;	// do nothig

	var search = searchstr;
	search = decodeURI(searchstr);
	if ((search.indexOf("(") >= 0) || (search.indexOf("[") >= 0)) {	// has already regexp
		searchterm = search;
		searchterm = encodeURI(searchterm);	// regex can not search u8nicode: make encoded - plain text will be encoded too
		try { searchterm = searchterm.replace(/%20/g," "); } catch(e){ }
		try { searchterm = searchterm.replace(/%5B/gi,"["); } catch(e){ }
		try { searchterm = searchterm.replace(/%5D/gi,"]"); } catch(e){ }
		try { searchterm = searchterm.replace(/%5E/gi,"^"); } catch(e){ }
		try { searchterm = searchterm.replace(/%5C/gi,"\\"); } catch(e){ }
		try { searchterm = searchterm.replace(/%/g,"ZzZz"); } catch(e){ }
	}
	else {
		try { search = search.replace(/( )+/g," "); } catch(e){ return; }	// remove multiple blanks
		try { search = search.replace(/\"/g,""); } catch(e){ return; }
		var searchparts = search.split(" ");
		var numsearchterms = searchparts.length;
		var searchterm = "";
		for (var t = 0; t < searchparts.length; t++) {
			if (searchparts[t] == "") continue;
			searchparts[t] = encodeURI(searchparts[t]);	// regex can not search u8nicode: make encoded - plain text will be encoded too
			// wildcards handling
			try { searchparts[t] = searchparts[t].replace(/\?/g,"(.)?"); } catch(e){ continue; }	// MUST be first because of the ?
			try { searchparts[t] = searchparts[t].replace(/\*/g,"(.)*?"); } catch(e){ continue; }
	
			try { searchparts[t] = searchparts[t].replace(/%/g,"ZzZz"); } catch(e){ continue; }
			if (searchterm != "") searchterm += "|";	// concatenate with OR
			searchterm += "\\b(\\w)*?" + searchparts[t] + "(.)*?\\b";
			//searchterm += "\\b[\\w%]*?" + searchparts[t] + "(.)*?[ \\s$]";
		}
	}
	//alert("searchstr: " + searchstr + "\nsearch: " + search + "\nsearchparts: " + searchparts + "\nsearchterm: " + searchterm);
	// go to search text in local document
	var re = null;
	try { re = new RegExp(searchterm,"gi"); } catch(e) { return; }	// uuups - can not compile

	var artIDarr = new Array();	// article IDs with matches
	var artfound = false;
	var ai = 0;
	var divs = document.getElementsByTagName("div");
	//alert("search for: " + searchterm + "\nin " + divs.length + " divs");
	for (ai = 0; ai < divs.length; ai++) {
		var artID = divs[ai].getAttribute("id");	// we get the article containers only
		if ((typeof(artID) == 'undefined') || (artID == null) || (artID == "")) continue;
		if (artID.indexOf("Art") != 0) continue;
		var articletext = get_plain_text(artID,-1);	// get all plain text
		if (articletext == "") continue;
		articletext = encodeURI(articletext);
		articletext = articletext.replace(/%20/g," ");
		try { articletext = articletext.replace(/%/g,"ZzZz"); } catch(e){ continue; }
		try {
			var matches = articletext.match(re);
			if (matches != null) {	// have found text
				var numfoundmatches = matches.length;
				for (var m = 0; m < matches.length; m++) {
					try { matches[m] = matches[m].replace(/ZzZz/g,"%"); } catch(e){ continue; }
					matches[m] = decodeURI(matches[m]);
				}
				var firstmatchpos = 0;
				var blankfirstmatchpos = 0;
				/*
				// in test phase
				firstmatchpos = articletext.search(re);	// the position of the first matching string
				blankfirstmatchpos = articletext.lastIndexOf(" ",firstmatchpos) + 1;	// the position of the first matching string
				//	alert("firstmatchpos: " + firstmatchpos + "\nblankfirstmatchpos: " + blankfirstmatchpos + "\ntext:\n" + articletext);
				*/
				try { articletext = articletext.replace(/ZzZz/g,"%"); } catch(e){ continue; }
				articletext = decodeURI(articletext);
				var realtextlength = articletext.length;
				if ((searchMaxTextLength > 0) && (articletext.length > searchMaxTextLength)) articletext = articletext.substr(blankfirstmatchpos,searchMaxTextLength);
				if (realtextlength > articletext.length) {	//got to word boundary and ad ...
					var lastblankpos = articletext.lastIndexOf(" ");
					if (lastblankpos <= articletext.length) {
						articletext = articletext.substring(0,lastblankpos+1);
						articletext += "...";
					}
				}
				artIDarr[artIDarr.length] = new Array(numfoundmatches,artID,matches,firstmatchpos,articletext);
				//alert("matches of: " + matches + "\nintext:\n" + artIDarr[artIDarr.length-1][3]);
				artfound = true;
			}
		} catch(e) {}
		if ((searchMaxResults > 0) && (artIDarr.length >= searchMaxResults)) break;
		// GET ALL ARTICLES    if ((artfound == true) && (bestmatchonly == true)) break;
	}

	// sort the matches array - most matches first
	var articleToShow = -1;
	if (artfound && (artIDarr != null)) {
		/*
			var foundarr = "";
			for (var f = 0; f < artIDarr.length; f++) foundarr += artIDarr[f][0] + "," + artIDarr[f][1] + "\n";
			alert(foundarr);
		*/
		artIDarr.sort(sortDescendant_callback);
		//alert("bestmatchonly: " + bestmatchonly + "\nartIDarr.length: " + artIDarr.length);
		if (bestmatchonly || artIDarr.length == 1) articleToShow = 0;
		else {	// show article chooser
			showDocumntSearchResults(artIDarr);
			articleToShow = -1;
		}
	}
	/* // debug only: show found matches
		var foundarr = "";
		for (var f = 0; f < artIDarr.length; f++) foundarr += artIDarr[f] + "\n";
		alert(foundarr);
	*/
	if ((articleToShow >= 0) && (artIDarr != null)) {
		var pg_art = artIDarr[articleToShow][1].split("_");
		var artid = pg_art[0]; artid = parseInt(artid.substr(3));
		var pageseq = pg_art[1];
		var pageidx = pageseq-1;
		/*
		alert("on page: " + pageseq
				+ "\narticle id: " + artid
				+ "\npageseq: " + pageseq
				+ "\npageidx: " + pageidx
				);
		*/
		if (artid > -1) show_article_xml(null,artid,1.0,null,"",false,false,pageseq);
		if (flipage) goto_page(pageidx,true);
		//window.location.hash=gotoanchor;
	}
	if (artIDarr.length <= 0) {	// no serch results
		alert(lst[2][cur_lang_ID]);
	}
	return;
}
function sortDescendant_callback(a, b) {
	var x = b[0];
	var y = a[0];
	return ((x < y) ? -1 : ((x > y) ? 1 : 0));
}
function get_plain_text(articleID,maxlength) {
	if ((articleID == null) || (articleID == "")) return("");
	var article = document.getElementById(articleID);
	var plaintext = "";
	var childnodes = article.childNodes;

	for (var i = 0; i < childnodes.length; i++) {
		//alert("nodetype: " + childnodes[i].nodeType);
		var txt = getChildsText(childnodes[i],maxlength);
		txt = txt.replace(/\r|\n|[\u2002-\u200a]/gi," ");
		if ((txt != "") && (plaintext != "") && (plaintext.charAt(plaintext.length-1) != " ")) plaintext+= " ";
		plaintext += txt;
		if ((maxlength > 0) && (plaintext.length >= maxlength)) break;
	}
	//alert("plaintext fort artcile ID: " + articleID + "\n" + plaintext);
	return(plaintext);
}
function getChildsText(node,maxlength) {
	if (node == null) return("");
	var text = "";
	var childnodes = node.childNodes;
	for (var i = 0; i < childnodes.length; i++) {
		switch(childnodes[i].nodeType) {
			case 3: // text node
				if (typeof(childnodes[i].data) != 'undefined') {
					text += childnodes[i].data;
				}
				break;
			default:
				if (childnodes[i].nodeName.toLowerCase() == "br") text += " ";
				else text += getChildsText(childnodes[i]);
				break;
		}
		if ((maxlength > 0) && (text.length >= maxlength)) break;
	}
	return(text);
}
var documentsearchwin = null;
function showDocumntSearchResults(artIDarr) {
	if ((artIDarr == null) || (artIDarr.length < 1)) return;
	var resultlist = "<div class=\"DRGSEARCHW1_searchResults\">";
	resultlist += "<div class=\"DRGSEARCHW1_searchResultTitle\">Search Results: " + artIDarr.length + "</div>";
	for (var i = 0; i < artIDarr.length; i++) {
		//alert("art: " + artIDarr[i][1]);
		var go2article_idx = artIDarr[i][1];
		if (go2article_idx.indexOf("Art") == 0) {	// get page number too
			go2page_idx = parseInt(go2article_idx.split("_")[1]-1);
		}
		resultlist += "<div class=\"" + (isEven(i) ? "DRGSEARCHW1_searchList0" : "DRGSEARCHW1_searchList1") + "\" onClick=\"_sb_settings.clickCameFromSearchResults=true;show_article_xml(null,'" + go2article_idx + "',1.0,null,'',false,false,'" + go2page_idx + "'); goto_page("+go2page_idx+",true);\" onMouseOver=\"this.style.cursor='pointer';\" title=\"" + artIDarr[i][2] + "\">";
		resultlist += artIDarr[i][4].substr(0,250);
		resultlist += "</div>";
	}
	resultlist += "</div>";
	try {
		_sb_settings.lastSearchResults = resultlist;
		_sb_settings.clickCameFromSearchResults = false;
	} catch(e){}
	showContent(resultlist,"text");
}

var num_searchtext_items=3;	//number of language dependent string array elements
var lst=new Array(num_searchtext_items);
for (var i=0; i<num_searchtext_items; i++) { lst[i]=new Array(5); }	//prepare sub-arrays for 8 languages

lst[0][0]="&nbsp;&nbsp;Search";
lst[0][1]="&nbsp;&nbsp;Suchen";
lst[0][2]="&nbsp;&nbsp;Recherche";
lst[0][3]="&nbsp;&nbsp;S\u00f8g";
lst[0][4]="&nbsp;&nbsp;Przeszukiwa\u0107";

lst[1][0]="Search in document";
lst[1][1]="Dokument durchsuchen";
lst[1][2]="Recherche document";
lst[1][3]="S\u00f8g dokument";
lst[1][4]="Dokument przeszukiwa\u0107";

lst[2][0]="No matching results";
lst[2][1]="Keine Suchresultate";
lst[2][2]="Aucun r\u00e9sultat";
lst[2][3]="Ingen s\u00f8geresultater";
lst[2][4]="Brak wynik\u00f3w wyszukiwania";