/*
 * Enano - an open source wiki-like CMS
 * Copyright (C) 2006-2007 Dan Fuhry
 * Javascript client library
 *
 * This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
 *
 * For more information about Enano, please visit http://enanocms.org/.
 * Unless otherwise noted, all of the code in these script files may be used freely so long as the above license block
 * is displayed and your modified code is distributed in compliance with the GPL. See the special page "About Enano" on
 * this website for more information.
 */

if ( typeof(title) != 'string')
{
	alert('There was a problem loading the PHP-generated Javascript variables that control parameters for AJAX applets. Most on-page functionality will be very badly broken.\n\nTheme developers, ensure that you are using {JS_DYNAMIC_VARS} *before* you include jsres.php.');
}

// placeholder for window.console - used if firebug isn't present
// http://getfirebug.com/firebug/firebugx.js
if (!window.console || !console.firebug)
{
		var names = ["log", "debug", "info", "warn", "error", "assert", "dir", "dirxml",
		"group", "groupEnd", "time", "timeEnd", "count", "trace", "profile", "profileEnd"];

		window.console = {};
		for (var i = 0; i < names.length; ++i)
				window.console[names[i]] = function() {}
}

console.info('Enano::JS runtime: starting system init');

if ( typeof(ENANO_JSRES_COMPRESSED) == undefined )
{
	var ENANO_JSRES_COMPRESSED = false;
}

// Run-time variables

var detect = navigator.userAgent.toLowerCase();
var IE;

// Detect whether the user is running the Evil One or not...

function checkIt(string) {
	place = detect.indexOf(string) + 1;
	thestring = string;
	return place ? true : false;
}

var IE = checkIt('msie');
var IE_8 = checkIt('msie 8.');
var is_Opera = checkIt('opera');
var is_iPhone = checkIt('iphone') || checkIt('ipod');
var is_iPhone_3 = checkIt('iphone') && Number(navigator.userAgent.replace(/^.*iPhone OS ([0-9]+)_([0-9]+) .*$/, '$1.$2')) >= 3.0;
var is_Webkit = checkIt('applewebkit');
var is_Gecko = checkIt('gecko');
var is_firefox2 = checkIt('firefox/2.');
var is_Safari = checkIt('safari') ? true : false;

var KILL_SWITCH = false;

var editor_formats = {};

if ( IE )
{
	var version = window.navigator.appVersion;
	version = version.substr( ( version.indexOf('MSIE') + 5 ) );
	var rawversion = '';
	for ( var i = 0; i < version.length; i++ )
	{
		var chr = version.substr(i, 1);
		if ( !chr.match(/[0-9\.]/) )
		{
			break;
		}
		rawversion += chr;
	}
	rawversion = parseInt(rawversion);
	if ( rawversion < 6 )
	{
		KILL_SWITCH = true;
	}
}

var cmt_open;
var editor_open = false;
var list;
var edit_open = false;
var catlist = new Array();
var arrDiff1Buttons = new Array();
var arrDiff2Buttons = new Array();
var arrTimeIdList   = new Array();
var list;
var unObj;
var unSelectMenuOn = false;
var unObjDivCurrentId = false;
var unObjCurrentSelection = false;
var userlist = new Array();
var submitAuthorized = true;
var timelist = [];
var rDnsObj;
var rDnsBannerObj;
var ns4 = document.layers;
var op5 = (navigator.userAgent.indexOf("Opera 5")!=-1) ||(navigator.userAgent.indexOf("Opera/5")!=-1);
var op6 = (navigator.userAgent.indexOf("Opera 6")!=-1) ||(navigator.userAgent.indexOf("Opera/6")!=-1);
var agt=navigator.userAgent.toLowerCase();
var mac = (agt.indexOf("mac")!=-1);
var ie = (agt.indexOf("msie") != -1);
var mac_ie = mac && ie;
var mouseX = 0;
var mouseY = 0;
var menuheight;
var inertiabase = 1;
var inertiainc = 1;
var slideintervalinc = 20;
var inertiabaseoriginal = inertiabase;
var heightnow;
var targetheight;
var block;
var slideinterval;
var divheights = new Array();
var __menutimeout = false;
var startmouseX = false;
var startmouseY = false;
var startScroll = false;
var is_dragging = false;
var current_ta  = false;
var startwidth  = false;
var startheight = false;
var do_width    = false;
var ajax_load_icon = cdnPath + '/images/loading.gif';
var editor_use_modal_window = false;

// You have an NSIS coder in your midst...
var MB_OK = 1;
var MB_OKCANCEL = 2;
var MB_YESNO = 4;
var MB_YESNOCANCEL = 8;
var MB_ABORTRETRYIGNORE = 16;
var MB_ICONINFORMATION = 32;
var MB_ICONEXCLAMATION = 64;
var MB_ICONSTOP = 128;
var MB_ICONQUESTION = 256;
var MB_ICONLOCK = 512;

// Can be set to true by slow themes (St. Patty)
if ( typeof(pref_disable_js_fx) != 'boolean' )
{
	var pref_disable_js_fx = false;
}
var aclDisableTransitionFX = ( is_firefox2 || pref_disable_js_fx ) ? true : false;

// Syntax:
// messagebox(MB_OK|MB_ICONINFORMATION, 'Title', 'Text');
// :-D

var $_REQUEST = new Object();
if ( window.location.hash )
{
	var hash = String(window.location.hash);
	hash = hash.substr(1);
	var reqobj = hash.split(';');
	var a, b;
	for ( var i = 0; i < reqobj.length; i++ )
	{
		a = reqobj[i].substr(0, reqobj[i].indexOf(':'));
		b = reqobj[i].substr( ( reqobj[i].indexOf(':') + 1 ) );
		$_REQUEST[a] = b;
	}
}

if ( !onload_hooks )
	var onload_hooks = new Array();

function addOnloadHook(func)
{
	if ( typeof ( func ) == 'function' )
	{
		if ( typeof(onload_hooks.push) == 'function' )
		{
			onload_hooks.push(func);
		}
		else
		{
			onload_hooks[onload_hooks.length] = func;
		}
	}
}

function runOnloadHooks(e)
{
	var _errorTrapper = 0;
	for ( var _oLc = 0; _oLc < onload_hooks.length; _oLc++ )
	{
		_errorTrapper++;
		if ( _errorTrapper >= 1000 )
			break;
		var _f = onload_hooks[_oLc];
		if ( typeof(_f) == 'function' )
		{
			_f(e);
		}
	}
	onload_hooks = [];
}

var enano_hooks = {};
function setHook(hook_name)
{
	if ( enano_hooks[hook_name] )
	{
		return enano_hooks[hook_name];
	}
	return 'void(0);';
}

function attachHook(hook_name, code)
{
	if ( !enano_hooks[hook_name] )
		enano_hooks[hook_name] = '';
	
	enano_hooks[hook_name] += code;
}

var loaded_components = loaded_components || {};
var _load_component_running = false;
function load_component(file)
{
	var multiple = false;
	if ( typeof(file) == 'object' )
	{
		if ( ENANO_JSRES_COMPRESSED )
		{
			multiple = true;
			for ( var i = 0; i < file.length; i++ )
			{
				file[i] = (file[i].replace(/\.js$/, '')) + '.js';
				if ( loaded_components[file[i]] )
				{
					file[i] = false;
				}
			}
			var file2 = [];
			for ( var i = 0; i < file.length; i++ )
			{
				if ( file[i] )
					file2.push(file[i]);
			}
			file = file2;
			delete(file2);
			if ( file.length < 1 )
			{
				return true;
			}
			var file_flat = implode(',', file);
		}
		else
		{
			for ( var i = 0; i < file.length; i++ )
			{
				load_component(file[i]);
			}
			return true;
		}
	}
	_load_component_running = true;
	if ( !multiple )
	{
		file = file.replace(/\.js$/, '');
	
		if ( loaded_components[file + '.js'] )
		{
			// already loaded
			return true;
		}
	}
	
	console.info('Loading component %s via AJAX', ( multiple ? file_flat : file ));
	
	load_show_win(( multiple ? file_flat : file ));
	
	// get an XHR instance
	var ajax = ajaxMakeXHR();
	
	if ( !multiple )
		file = file + '.js';
	var uri = ( ENANO_JSRES_COMPRESSED ) ? scriptPath + '/includes/clientside/jsres.php?f=' + (multiple ? file_flat : file ) + '&' + enano_version : scriptPath + '/includes/clientside/static/' + file + '?' + enano_version;
	try
	{
		ajax.open('GET', uri, false);
		ajax.onreadystatechange = function()
		{
			if ( this.readyState == 4 && this.status != 200 )
			{
				alert('There was a problem loading a script from the server. Please check your network connection.');
				load_hide_win();
				throw('load_component(): XHR for component ' + file + ' failed');
			}
		}
		ajax.send(null);
		// async request, so if status != 200 at this point then we're screwed
		if ( ajax.readyState == 4 && ajax.status == 200 )
		{
			if ( onload_complete )
				onload_hooks = [];
			eval_global(ajax.responseText);
			if ( window.jQuery && aclDisableTransitionFX )
				if ( window.jQuery.fx )
					window.jQuery.fx.off = true;
			load_hide_win();
			if ( onload_complete )
				runOnloadHooks();
		}
	}
	catch(e)
	{
		alert('There was a problem loading a script from the server. Please check your network connection.');
		load_hide_win();
		console.info("Component loader exception is shown below.");
		console.debug(e);
		console.trace();
		throw('load_component(): XHR for component ' + file + ' failed');
	}
	
	if ( !multiple )
	{
		loaded_components[file] = true;
	}
	_load_component_running = false;
	return true;
}

function load_show_win(file)
{
	var img = '<img style="margin-right: 5px" src="' + cdnPath + '/images/loading.gif" />';
	if ( document.getElementById('_js_load_component') )
	{
		document.getElementById('_js_load_component').innerHTML = img + msg_loading_component.replace('%component%', file);
		return;
	}
	file = file.replace(/\.js$/, '').replace(/\.js,/g, ', ');
	var ld = document.createElement('div');
	ld.style.padding = '10px';
	ld.style.height = '12px';
	ld.style.position = 'fixed';
	ld.style.right = '5px';
	ld.style.bottom = '0px';
	ld.innerHTML = img + msg_loading_component.replace('%component%', file);
	ld.id = '_js_load_component';
	
	// FYI: The base64 encoded image is a 70% opacity 1x1px white PNG.
	ld.style.backgroundImage = 'url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAAlwSFlzAAALEwAACxMBAJqcGAAAAA1JREFUCNdj+P///xkACcgDypG+nnEAAAAASUVORK5CYII=)';
	
	document.body.appendChild(ld);
	document.body.style.cursor = 'wait';
}

function load_hide_win()
{
	var ld = document.getElementById('_js_load_component');
	if ( !ld )
		return false;
	ld.parentNode.removeChild(ld);
	document.body.style.cursor = 'default';
}

// evaluate a snippet of code in the global context, used for dynamic component loading
// from: http://dean.edwards.name/weblog/2006/11/sandbox/
function eval_global(_jsString)
{
	if (typeof _jsString != "string")
	{
		return false;
	}

	// Check whether window.eval executes code in the global scope.
	window.eval("var __INCLUDE_TEST_1__ = true;");
	if (typeof window.__INCLUDE_TEST_1__ != "undefined")
	{
		delete window.__INCLUDE_TEST_1__;
		window.eval(_jsString);
	}
	else if (typeof window.execScript != "undefined")	// IE only
	{
		window.execScript(_jsString);
	}
	else
	{
		// Test effectiveness of creating a new SCRIPT element and adding it to the document.
		this._insertScriptTag = function (_jsCode) {
			var _script = document.createElement("script");
			_script.type = "text/javascript";
			_script.defer = false;
			_script.text = _jsCode;
			var _headNodeSet = document.getElementsByTagName("head");
			if (_headNodeSet.length)
			{
				_script = _headNodeSet.item(0).appendChild(_script);
			}
			else
			{
				var _head = document.createElement("head");
				_head = document.documentElement.appendChild(_head);
				_script = _head.appendChild(_script);
			}
			return _script;
		}
		var _testScript = this._insertScriptTag("var __INCLUDE_TEST_2__ = true;");
		if (typeof window.__INCLUDE_TEST_2__ == "boolean")
		{
			_testScript.parentNode.removeChild(_testScript);
			this._insertScriptTag(_jsString);
		}
		else
		{
			// Check whether window.setTimeout works in real time.
			window.setTimeout("var __INCLUDE_TEST_3__ = true;", 0);
			if (typeof window.__INCLUDE_TEST_3__ != "undefined")
			{
				delete window.__INCLUDE_TEST_3__;
				window.setTimeout(_jsString, 0);
			}
		}
	}

	return true;
}

var autofill_check = function()
{
	var inputs = document.getElementsByTagName('input');
	for ( var i = 0; i < inputs.length; i++ )
	{
		if ( inputs[i].className )
		{
			if ( inputs[i].className.match(/^autofill/) )
			{
				load_component('autofill');
				return;
			}
		}
	}
}

addOnloadHook(autofill_check);

var head = document.getElementsByTagName('head')[0];

// safari has window.console but not the .debug() method
if ( is_Safari && !window.console.debug )
{
	window.console.debug = function() {};
}

// Do not remove the following comments, they are used by jsres.php.
/*!START_INCLUDER*/

// Start loading files
// The string from the [ to the ] needs to be valid JSON, it's parsed by jsres.php.
var thefiles = [
	'dynano.js',
	'functions.js',
	'dropdown.js',
	'json.js',
	'sliders.js',
	'preformat.js',
	'loader.js'
];

for(var f in thefiles)
{
	if ( typeof(thefiles[f]) != 'string' )
		continue;
	var script = document.createElement('script');
	script.type="text/javascript";
	if ( thefiles[f] == 'json.js' && KILL_SWITCH )
	{
		// alert('kill switch and problem script');
		continue;
	}
	script.src=cdnPath+"/includes/clientside/static/"+thefiles[f];
	head.appendChild(script);
}

// Do not remove the following comment, it is used by jsres.php.
/*!END_INCLUDER*/

addOnloadHook(function() {
	if ( $_REQUEST['auth'] )
	{
		var key = $_REQUEST['auth'];
		var loc = String(window.location);
		loc = loc.replace(/#.+$/, '').replace(/&auth=[0-9a-f]+/, '').replace(/\?auth=[0-9a-f]+(&)?/, '$1');
		if ( key != 'false' )
		{
			var sep = loc.indexOf('?') != -1 ? '&' : '?';
			loc = loc + sep + 'auth=' + key;
		}
		console.debug(loc);
		window.location = loc;
	}
	if ( $_REQUEST['do'] )
	{
		var act = $_REQUEST['do'];
		switch(act)
		{
			case 'comments':
				ajaxComments();
				break;
			case 'edit':
				var revid = ( $_REQUEST['rev'] ) ? parseInt($_REQUEST['rev']) : false;
				ajaxEditor(revid);
				break;
			case 'login':
				ajaxStartLogin();
				break;
			case 'history':
				ajaxHistory();
				break;
			case 'catedit':
				ajaxCatEdit();
				break;
			case 'rename':
				ajaxRename();
				break;
			case 'aclmanager':
				ajaxOpenACLManager();
				break;
		}
	}
});

function Placeholder(funcname, filename)
{
	this.filename = filename;
	this.funcname = funcname;
	this.go = function()
	{
		window[funcname] = null;
		load_component(filename);
		var arglist = [];
		for ( var i = 0; i < arguments.length; i++ )
		{
			arglist[arglist.length] = 'arguments['+i+']';
		}
		arglist = implode(', ', arglist);
		return eval(funcname + '(' + arglist + ');');
	}
}

// list of public functions that need placeholders that fetch the component
var placeholder_list = {
	ajaxReset: 'ajax.js',
	ajaxComments: 'comments.js',
	ajaxEditor: 'editor.js',
	ajaxHistory: 'ajax.js',
	ajaxRename: 'ajax.js',
	ajaxDelVote: 'ajax.js',
	ajaxProtect: 'ajax.js',
	ajaxClearLogs: 'ajax.js',
	ajaxRollback: 'ajax.js',
	ajaxResetDelVotes: 'ajax.js',
	ajaxDeletePage: 'ajax.js',
	ajaxSetPassword: 'ajax.js',
	ajaxChangeStyle: 'ajax.js',
	ajaxCatToTag: 'ajax.js',
	ajaxCatEdit: 'ajax.js',
	ajaxReverseDNS: 'ajax.js',
	ajaxGzipCheck: 'ajax.js',
	ajaxOpenACLManager: 'acl.js',
	ajaxOpenDirectACLRule: 'acl.js',
	ajaxAdminPage: 'login.js',
	ajaxInitLogout: 'login.js',
	ajaxStartLogin: 'login.js',
	ajaxStartAdminLogin: 'login.js',
	ajaxLoginNavTo: 'login.js',
	ajaxLogonToElev: 'login.js',
	ajaxLoginInit: 'login.js',
	ajaxAdminPage: 'login.js',
	ajaxAdminUser: 'login.js',
	mb_logout: 'login.js',
	selectButtonMajor: 'toolbar.js',
	selectButtonMinor: 'toolbar.js',
	unselectAllButtonsMajor: 'toolbar.js',
	unselectAllButtonsMinor: 'toolbar.js',
	darken: 'fadefilter.js',
	enlighten: 'fadefilter.js',
	password_score: 'pwstrength.js',
	password_score_field: 'pwstrength.js',
	ajaxEditTheme: 'theme-manager.js',
	ajaxToggleSystemThemes: 'theme-manager.js',
	ajaxInstallTheme: 'theme-manager.js',
	ajaxInitRankEdit: 'rank-manager.js',
	ajaxInitRankCreate: 'rank-manager.js',
	autofill_init_element: 'autofill.js',
	autofill_init: 'autofill.js',
	paginator_goto: 'paginate.js'
};

function AutofillUsername(el, p)
{
	p = p || {};
	el.className = 'autofill username';
	el.onkeyup = null;
	autofill_init_element(el, p);
}

function AutofillPage(el, p)
{
	p = p || {};
	el.className = 'autofill page';
	el.onkeyup = null;
	autofill_init_element(el, p);
}

var placeholder_instances = {};

for ( var i in placeholder_list )
{
	var file = placeholder_list[i];
	placeholder_instances[i] = new Placeholder(i, file);
	window[i] = window[i] || placeholder_instances[i].go;
}

$lang = window.$lang || {
	get: function(a, b)
	{
		load_component('l10n');
		return $lang.get(a, b);
	},
	placeholder: true
}

//*/