/****************************************************
#													#
#	revisor v0.3 - by marcoss {http://defmay.com}	#
#													#
#	revisor.com.ar is a modified version of 		#
#	GoogieSpell v2, an online spell checker based	#
#	on Google's spell services.						#
#													#
#	The code is released under the GPL and is 		#
#	Copyright Amir Salihefendic 2006				#
#													#
#	Original disclaimer:							#
# 	GoogieSpell v2									#
#  	Google spell checker for your own web-apps :)	#
#   Copyright Amir Salihefendic 2006				#
#	AUTHOR											#
#   4mir Salihefendic(http://amix.dk) amix@amix.dk	#
#	VERSION											#
#	2.2 (19/02/06 22:55:11)							#
#	LICENSE											#
#	(read more in LGPL.txt)							#
#	SITE											#
#   http://amix.dk/googiespell						#
#													#
#													#
#	DO NOT USE THIS VERSION FOR YOUR PROJECT!!!		#
#	It has been modified to suit this site(revisor)	#
#	needs so it may (and it shouldn't) work for		#
#	you. I'd recommend you to grab the latest 		#
#	release at the author site. That said, use at	#
#	own risk.										#
#													#
****************************************************/



var REQUEST;

var ERROR_WINDOW;		//The drop down thingie
var LANGUAGE_WINDOW; 	//The drop down thingie
var EDIT_LAYER; 		//The layer where the suggestions are presented

var ORGINAL_TEXT;
var CURRENT_RESULTS;
var CURRENT_TEXT_AREA;
var CURRENT_ELM;
var CURRENT_LANG_SPAN;

var TA_SCROLL_TOP = 0; 	//TA = TextArea
var EL_SCROLL_TOP = 0; 	// EL = EditLayer

var item_onmouseover = function(e) { getEventElm(e).style.backgroundColor = "#669900"; };
var item_onmouseout = function(e) { getEventElm(e).style.backgroundColor = ""; };
/****************************
#	Main call function		#
****************************/
function googieSpellCheck(elm, name) {
	TA_SCROLL_TOP = CURRENT_TEXT_AREA.scrollTop;
  	googieAppendIndicator(elm);
	CURRENT_ELM = elm;
  	createEditLayer();
	createErrorWindow();
  	document.getElementsByTagName("body")[0].appendChild(ERROR_WINDOW);
	try {
    	netscape.security.PrivilegeManager.enablePrivilege("UniversalBrowserRead");
  	}
  	catch (e) {
	}
	CURRENT_ELM.onclick = null;
	createRequest();
	ORGINAL_TEXT = CURRENT_TEXT_AREA.value;
	REQUEST.open("POST", getGoogleUrl(), true);
	REQUEST.onreadystatechange = reqDone;
	var req_text = ORGINAL_TEXT.replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g, "&gt;");
	REQUEST.send(createXMLReq(req_text));
}
/********************************
#	Request specific functions	#
********************************/
function createXMLReq(text) {
	return '<?xml version="1.0" encoding="utf-8" ?><spellrequest textalreadyclipped="0" ignoredups="0" ignoredigits="1" ignoreallcaps="1"><text>' + text + '</text></spellrequest>';
}
function createRequest() {
	REQUEST = getXMLHttpRequest();
}
// 	The rquest will return an array in the way of
//	result[item] -> ['attrs']
//	['suggestions']
function parseResult(r_text) {
	var re_split_attr_c = /\w="\d+"/g;
	var re_split_text = /\t/g;
	var matched_c = r_text.match(/<c[^>]*>[^<]*<\/c>/g);
	var results = new Array();
	for(var i=0; i < matched_c.length; i++) {
		var item = new Array();
		//Get attributes
		item['attrs'] = new Array();
		var split_c = matched_c[i].match(re_split_attr_c);
		for(var j=0; j < split_c.length; j++) {
			var c_attr = split_c[j].split(/=/);
			item['attrs'][c_attr[0]] = parseInt(c_attr[1].replace('"', ''));
		}
    	//Get suggestions
    	item['suggestions'] = new Array();
    	var only_text = matched_c[i].replace(/<[^>]*>/g, "");
    	var split_t = only_text.split(re_split_text);
    	for(var k=0; k < split_t.length; k++) {
	    	if(split_t[k] != "")
    		item['suggestions'].push(split_t[k]);
    	}
	results.push(item);
 	}
  	return results;
}
function reqDone() {
	if (REQUEST.readyState == 4) {
		if(REQUEST.status == 200) {
			var r_text = REQUEST.responseText;
			if(r_text.match(/<c.*>/) != null) {
		    	var results = parseResult(r_text);
		      	//Before parsing be sure that errors were found
		      	CURRENT_RESULTS = results;
		      	showErrorsInIframe(results);
				hideElement($('googie_change_lang'));
		      	//Change link text to resume
		      	CURRENT_ELM.innerHTML = "Continuar Editando";
		      	CURRENT_ELM.onclick = resumeEditing;
		      	CURRENT_ELM.className = "googie_check_spelling_ok";
		      	EDIT_LAYER.scrollTop = EL_SCROLL_TOP;
		    }
		    else {
		    	//No spelling error found
		      	CURRENT_ELM.innerHTML = "Revisar Ortografía";
		      	CURRENT_ELM.onclick = function(e) { googieSpellCheck(CURRENT_ELM, CURRENT_TEXT_AREA.id);};
		      	alert("Felicitaciones!\nNo se encontró ningún error en el texto.");
		    }
	  	}
  	}
}
/****************************************
#	Error window (the drop-down window)	#
****************************************/
//Set up the error window
function createErrorWindow() {
	ERROR_WINDOW = document.createElement("div");
	ERROR_WINDOW.className = "googie_window";
}
function hideErrorWindow() {
	ERROR_WINDOW.style.visibility = "hidden";
}
function updateOrginalText(offset, old_value, new_value, id) {
	var part_1 = ORGINAL_TEXT.substring(0, offset);
	var part_2 = ORGINAL_TEXT.substring(offset+old_value.length);
	ORGINAL_TEXT = part_1 + new_value + part_2;
	var add_2_offset = new_value.length - old_value.length;
	for(var j=0; j < CURRENT_RESULTS.length; j++) {
	    //Don't edit the offset of the current item
		if(j != id && j > id){
      		CURRENT_RESULTS[j]['attrs']['o'] += add_2_offset;
    	}
  	}
}
function saveOldValue(id, old_value) {
	CURRENT_RESULTS[id]['is_changed'] = true;
  	CURRENT_RESULTS[id]['old_value'] = old_value;
}
function showErrorWindow(elm, id) {
	var abs_pos = absolutePosition(elm);
	abs_pos.y -= EDIT_LAYER.scrollTop;
	ERROR_WINDOW.style.visibility = "visible";
	ERROR_WINDOW.style.top = (abs_pos.y+20) + "px";
	ERROR_WINDOW.style.left = (abs_pos.x) + "px";
	ERROR_WINDOW.innerHTML = "";
	//Build up the result list
  	var table = TABLE({'class': 'googie_list'});
  	var list = TBODY();
	var suggestions = CURRENT_RESULTS[id]['suggestions'];
	var offset = CURRENT_RESULTS[id]['attrs']['o'];
	var len = CURRENT_RESULTS[id]['attrs']['l'];
	if(suggestions.length == 0) {
		var row = TR();
		var item = TD();
		var dummy = SPAN();
		item.appendChild(TN("No hay sugerencias :("));
		row.appendChild(item);
		list.appendChild(row);
  	}
	for(i=0; i < suggestions.length; i++) {
	    var row = TR();
	    var item = TD();
	    var dummy = SPAN();
	    dummy.innerHTML = suggestions[i];
	    item.appendChild(TN(dummy.innerHTML));
	    var correctError = function (l_elm) {
			var old_value = elm.innerHTML;
			var new_value = l_elm.innerHTML;
			elm.style.color = "#336600";
			elm.innerHTML = l_elm.innerHTML;
			hideErrorWindow();
			updateOrginalText(offset, old_value, new_value, id);
			//Update to the new length
			CURRENT_RESULTS[id]['attrs']['l'] = new_value.length;
			saveOldValue(id, old_value);
	    };
	    item.onclick = function(e) {correctError(getEventElm(e))};
	    item.onmouseover = item_onmouseover;
	    item.onmouseout = item_onmouseout;
	    row.appendChild(item);
	    list.appendChild(row);
	}
  	//The element is changed, append the revert
  	if(CURRENT_RESULTS[id]['is_changed']) {
		//Close button
		var old_value = CURRENT_RESULTS[id]['old_value'];
		var offset = CURRENT_RESULTS[id]['attrs']['o'];
		var revert_row = TR();
		var revert = TD({'class': 'googie_list_revert'});
		revert.onmouseover = item_onmouseover;
		revert.onmouseout = item_onmouseout;
		revert.appendChild(TN("Volver a '" + old_value + "'"));
		revert.onclick = function(e) {
			updateOrginalText(offset, elm.innerHTML, old_value, id);
			elm.style.color = "#993300";
			elm.innerHTML = old_value;
			hideErrorWindow();
		};
		revert_row.appendChild(revert);
		list.appendChild(revert_row);
	}
	//Append the edit box
	var edit_row = TR();
	var edit = TD();
	var edit_input = INPUT({'style': 'width: 110px;'});
	var onsub = function () {
		saveOldValue(id, elm.innerHTML);
		updateOrginalText(offset, elm.innerHTML, edit_input.value, id);
		elm.style.color = "#336600"
		elm.innerHTML = edit_input.value;
		hideErrorWindow();
		return false;
	};
	var ok_pic = IMG({'src': GOOGIE_IMAGE_DIR + "ok.gif"});
	var edit_form = FORM({'style': 'margin: 0; padding: 0'}, edit_input, " ", ok_pic);
	ok_pic.onclick = onsub;
	edit_form.onsubmit = onsub;
	edit.appendChild(edit_form);
	edit_row.appendChild(edit);
	list.appendChild(edit_row);
	//Close button
	var close_row = TR();
	var close = TD({'class': 'googie_list_close'});
	close.onmouseover = item_onmouseover;
	close.onmouseout = item_onmouseout;
	close.appendChild(TN("cerrar [x]"));
	close.onclick = function() { hideErrorWindow()};
	close_row.appendChild(close);
	list.appendChild(close_row);
	table.appendChild(list);
	ERROR_WINDOW.appendChild(table);
}
/************************************************************
#	Edit layer (the layer where the suggestions are stored)	#
************************************************************/
function createEditLayer() {
	EDIT_LAYER = DIV({'class': 'googie_edit_layer'});
}
function resumeEditing(e) {
	$('googie_change_lang').style.display = "inline";
	EL_SCROLL_TOP = EDIT_LAYER.scrollTop;
	var elm = getEventElm(e);
	elm.innerHTML = "Revisar Ortografía";
	elm.onclick = function(e) { googieSpellCheck(elm, CURRENT_TEXT_AREA.id);};
	hideErrorWindow();
	//Remove the EDIT_LAYER
	EDIT_LAYER.parentNode.removeChild(EDIT_LAYER);
	CURRENT_TEXT_AREA.value = ORGINAL_TEXT;
	showElement(CURRENT_TEXT_AREA);
	CURRENT_ELM.className = "googie_check_spelling_link";
	CURRENT_TEXT_AREA.scrollTop = TA_SCROLL_TOP;
	elm.onmouseout = null;
}
function createErrorLink(text, id) {
	var elm = SPAN({'class': 'googie_link'});
	elm.onclick = function () { showErrorWindow(elm, id); };
	elm.innerHTML = text;
	return elm;
}
function showErrorsInIframe(results) {
	var output = DIV();
	output.style.textAlign = "left";
	var is_safari = (navigator.userAgent.toLowerCase().indexOf("safari") != -1);
	var pointer = 0;
	for(var i=0; i < results.length; i++) {
		var offset = results[i]['attrs']['o'];
		var len = results[i]['attrs']['l'];
		var part_1_text = ORGINAL_TEXT.substring(pointer, offset).replace(/\n/g, "<BR>");
		var part_1 = SPAN();
		part_1.innerHTML = part_1_text;
		if(part_1_text.substring(0, 1) == " ")
      		output.appendChild(TN(" "));
    		output.appendChild(part_1);
    	if(part_1_text.substr(part_1_text.length-1, 1) == " " && is_safari)
      		output.appendChild(TN(" "));
    		pointer += offset - pointer;
			//If the last child was an error, then insert some space
    		output.appendChild(createErrorLink(ORGINAL_TEXT.substr(offset, len), i));
    		pointer += len;
	}
	//Insert the rest of the orginal text
	var part_2 = SPAN();
	part_2.innerHTML = ORGINAL_TEXT.substr(pointer, ORGINAL_TEXT.length).replace(/\n/g, "<BR>");
	output.appendChild(part_2);
	EDIT_LAYER.appendChild(output);
	//Hide text area
	hideElement(CURRENT_TEXT_AREA);
	CURRENT_TEXT_AREA.parentNode.insertBefore(EDIT_LAYER, CURRENT_TEXT_AREA.nextSibling);
}
/********************
#	Misc. functions	#
********************/
function Position(x, y) {
	this.x = x;
	this.y = y;
}
//Get the absolute position of menu_slide
function absolutePosition(element) {
	//Create a new object that has elements y and x pos...
  	var posObj = new Position(element.offsetLeft, element.offsetTop);
	//Check if the element has an offsetParent - if it has .. loop until it has not
	if(element.offsetParent) {
		var temp_pos =	absolutePosition(element.offsetParent);
		posObj.x += temp_pos.x;
		posObj.y += temp_pos.y;
	}
	return posObj;
}
function getEventElm(e){
	var targ;
	if (!e) var e = window.event;
	if (e.target) targ = e.target;
	else if (e.srcElement) targ = e.srcElement;
	if (targ.nodeType == 3) // defeat Safari bug
	targ = targ.parentNode;
  	return targ;
}
function googieAppendIndicator(elm) {
	var img = document.createElement('img');
	img.src = GOOGIE_IMAGE_DIR + "indicator.gif";
	img.style.textDecoration = "none";
	elm.appendChild(img);
}
/********************
#	Choose language	#
********************/
var langlist_codes = new Array("da", "nl", "en", "fi", "fr", "de", "it", "pl", "pt", "es", "sv");
var lang_to_word = {"da": "Danés", "nl": "Holandés ", "en": "Inglés", "fi": "Finlandés", "fr": "Francés", "de": "Alemán", "it": "Italiano", "pl": "Polish", "pt": "Portugués", "es": "Español", "sv": "Sueco"};
function createLangWindow() {
	LANGUAGE_WINDOW = DIV({'id': 'lang_win', 'class': 'googie_window'});
	//Build up the result list
	var table = TABLE({'class': 'googie_list'});
	var list = TBODY();
	for(i=0; i < langlist_codes.length; i++) {
    	var row = TR();
    	var item = TD({'id': langlist_codes[i]});
    	item.appendChild(TN(lang_to_word[langlist_codes[i]]));
		var switchLang = function(elm) {
      		deHighlightCurSel($(CURRENT_LANG));
      		CURRENT_LANG = elm.id;
      		CURRENT_LANG_SPAN.innerHTML = lang_to_word[elm.id];
			//Set cookie
      		var now = new Date();
      		now.setTime(now.getTime() + 365 * 24 * 60 * 60 * 1000);
      		setCookie('language', CURRENT_LANG, now);
			highlightCurSel(elm);
      		hideLangWindow();
    	};
		item.onclick = function(e) {switchLang(getEventElm(e))};
		item.onmouseover = function(e) {
	    	var i_it = getEventElm(e);
	      	if(i_it.className != "googie_list_selected")
			i_it.className = "googie_list_onhover";
	    };
		item.onmouseout = function(e) {
	    	var i_it = getEventElm(e);
			if(i_it.className != "googie_list_selected")
			i_it.className = "googie_list_onout";
	    };
		row.appendChild(item);
		list.appendChild(row);
  	}
	//Close button
	var close_row = TR();
	var close = TD({'class': 'googie_list_close'});
	close.onmouseover = item_onmouseover;
	close.onmouseout = item_onmouseout;
	close.appendChild(TN("cerrar [x]"));
	close.onclick = function(e) { hideLangWindow(); item_onmouseout(e);};
	close_row.appendChild(close);
	list.appendChild(close_row);
	table.appendChild(list);
  	LANGUAGE_WINDOW.appendChild(table);
}
createLangWindow();
function hideLangWindow() {
	LANGUAGE_WINDOW.style.visibility = "hidden";
}
//Highlight the current selected language
function deHighlightCurSel(elm) {
	elm.className = "googie_list_onout";
}
function highlightCurSel(elm) {
	elm.className = "googie_list_selected";
}
function showLangWindow(elm) {
	var abs_pos = absolutePosition(elm);
	LANGUAGE_WINDOW.style.visibility = "visible";
	LANGUAGE_WINDOW.style.top = (abs_pos.y+20) + "px";
	LANGUAGE_WINDOW.style.left = (abs_pos.x+8) + "px";
	highlightCurSel($(CURRENT_LANG));
}
function chooseLanguage(elm) {
	var lang_win = $("lang_win");
	if(lang_win == null) {
		document.getElementsByTagName("body")[0].appendChild(LANGUAGE_WINDOW);
	}
	showLangWindow(elm);
}
/************************************
#	Decorate function reloaded		#
#	--moved over index--			#
************************************/
function googieDecorateTextarea(id,ta_form) {
  	CURRENT_TEXT_AREA = $(id);
  	TEXT_AREA_FORM = $(ta_form);
	if(CURRENT_TEXT_AREA != null) {
		var lang_menu = DIV({'class': 'lang_menu'});
		var spell_menu = DIV({'class': 'spell_menu'});
		var switch_lan_pre = SPAN();
		var switch_lan = SPAN();
		var check_spl = SPAN();
		var clearboth = DIV({'class': 'clear'});
		//CURRENT_LANG_SPAN = lang_to_word[CURRENT_LANG];
		CURRENT_LANG_SPAN = SPAN({'class': 'googie_cur_lang_display'}, lang_to_word[CURRENT_LANG]);
		switch_lan.innerHTML = '<a class="googie_check_spelling_link" onclick="chooseLanguage(this)" id="googie_change_lang" title="Cambiar Idioma" ><small>(cambiar)</small></a>';
		check_spl.innerHTML = '<span onclick="googieSpellCheck(this)" class="googie_check_spelling_link">Revisar Ortografía</span>';
		clearboth.innerHTML = '&nbsp;';
		switch_lan_pre.innerHTML = 'diccionario actual:&nbsp;';

		lang_menu.appendChild(switch_lan_pre);
		lang_menu.appendChild(CURRENT_LANG_SPAN);
		lang_menu.appendChild(switch_lan);
		spell_menu.appendChild(check_spl);

		insertBefore(lang_menu, TEXT_AREA_FORM);
		insertAfter(clearboth, lang_menu);
		insertAfter(spell_menu, TEXT_AREA_FORM);
		insertAfter(clearboth, spell_menu);
	}else {
		alert("Run! Things are really screwed up.");
  	}
}