// The "Dynano" Javascript framework. Similar in syntax to JQuery but highly Enano-specific (TinyMCE, etc).

var $dynano = function(id)

{

	return new DNobj(id);

}

function DNobj(id)

{

	if ( id == undefined )

	{

		return {};

	}

	this.object = ( typeof(id) == 'object' ) ? id : document.getElementById(id);

	if ( !this.object )

	{

		console.warn('Dynano: requested object is bad. id parameter follows.');

		console.debug(id);

		this.object = false;

		return this;

	}

	if ( this.object.Dynano )

	{

		return this.object.Dynano;

	}

	this.object.Dynano = this;

	this.height = __DNObjGetHeight(this.object);

	this.width = __DNObjGetWidth(this.object);

	if ( this.object.tagName == 'TEXTAREA' && ( typeof(tinyMCE) == 'object' || typeof(tinyMCE_GZ) == 'object' ) )

	{

		this.object.dnIsMCE = 'no';

		this.switchToMCE = DN_switchToMCE;

		this.destroyMCE = DN_destroyMCE;

		this.getContent = DN_mceFetchContent;

		this.setContent = DN_mceSetContent;

		this.makeSwitchable = DN_makeSwitchableTA;

		this.isMCE = DN_isMCE;

	}

}

function __DNObjGetHeight(o) {

	return o.offsetHeight;

}

function __DNObjGetWidth(o) {

	return o.offsetWidth;

}

function addClass(obj, clsname)

{

	var cnt = obj.className;

	var space = ( (cnt + '').length > 0 ) ? ' ' : '';

	var cls = cnt + space + clsname;

	obj.className = cls;

}

function rmClass(obj, clsname)

{

	var cnt = obj.className;

	if ( cnt == clsname )

	{

		obj.className = '';

	}

	else

	{

		cnt = cnt.replace(clsname, '');

		cnt = trim(cnt);

		obj.className = cnt;

	}

}

function hasClass(obj, clsname)

{

	var cnt = obj.className;

	if ( !cnt )

		return false;

	if ( cnt == clsname )

		return true;

	cnt = cnt.split(' ');

	for ( var i in cnt )

		if ( cnt[i] == clsname )

			return true;

	return false;

}

function __DNObjGetLeft(obj) {

	var left_offset = obj.offsetLeft;

	while ((obj = obj.offsetParent) != null) {

		left_offset += obj.offsetLeft;

	}

	return left_offset;

}

function __DNObjGetTop(obj) {

	var left_offset = obj.offsetTop;

	while ((obj = obj.offsetParent) != null) {

		left_offset += obj.offsetTop;

	}

	return left_offset;

}

function DN_switchToMCE(performWikiTransform)

{

	if ( !this.object.id )

		this.object.id = 'textarea_' + Math.floor(Math.random() * 1000000);

	if ( !this.object.name )

		this.object.name = 'textarea_' + Math.floor(Math.random() * 1000000);

	// Updated for TinyMCE 3.x

	if ( performWikiTransform )

	{

		this.object.value = DN_WikitextToXHTML(this.object.value);

	}

	// If tinyMCE init hasn't been called yet, do it now.

	if ( !tinymce_initted )

	{

		console.info('$dynano().switchToMCE(): doing "exact"-type MCE init');

		enano_tinymce_options.mode = 'exact';

		enano_tinymce_options.elements = this.object.id;

		initTinyMCE();

		this.object.dnIsMCE = 'yes';

	}

	else

	{

		console.info('$dynano().switchToMCE(): tinyMCE already loaded, calling mceAddControl');

		tinymce.EditorManager.execCommand("mceAddControl", true, this.object.id);

		this.object.dnIsMCE = 'yes';

	}

	// Any elements to hide?

	var objs = getElementsByClassName(this.object.parentNode, '*', 'hide-with-mce');

	console.debug(objs);

	for ( var i = 0; i < objs.length; i++ )

	{

		objs[i].style.display = 'none';

	}

	return this;

}

function DN_destroyMCE(performWikiTransform)

{

	//if ( !this.object.dn_is_mce )

	//  return this;

	if ( this.object.id && window.tinymce )

	{

		// TinyMCE 2.x

		// tinymce.EditorManager.removeMCEControl(this.object.name);

		// TinyMCE 3.x

		var ed = tinymce.EditorManager.getInstanceById(this.object.id);

		if ( ed )

		{

			if ( !tinymce.EditorManager.execCommand("mceRemoveEditor", false, this.object.id) )

				alert('could not destroy editor');

			if ( performWikiTransform )

			{

				this.object.value = DN_XHTMLToWikitext(this.object.value);

			}

		}

	}

	this.object.dnIsMCE = 'no';

	// Any elements to re-show?

	var objs = getElementsByClassName(this.object.parentNode, '*', 'hide-with-mce');

	for ( var i = 0; i < objs.length; i++ )

	{

		objs[i].style.display = 'block';

	}

	return this;

}

function DN_isMCE()

{

	return ( this.object.dnIsMCE == 'yes' );

}

function DN_mceFetchContent()

{

	if ( this.object.name )

	{

		var text = this.object.value;

		if ( tinymce.EditorManager.get(this.object.id) )

		{

			var editor = tinymce.EditorManager.get(this.object.id);

			text = editor.getContent();

		}

		return text;

	}

	else

	{

		return this.object.value;

	}

}

function DN_mceSetContent(text)

{

	if ( this.object.name )

	{

		this.object.value = text;

		if ( tinymce.EditorManager.get(this.object.id) )

		{

			var editor = tinymce.EditorManager.get(this.object.id);

			editor.setContent(text);

		}

	}

	else

	{

		this.object.value = text;

	}

}

var P_BOTTOM = 1;

var P_TOP = 2;

function DN_makeSwitchableTA(pos)

{

	if ( this.toggler )

		return false;

	if ( !pos )

		pos = P_BOTTOM;

	load_component('l10n');

	var cookiename = 'enano_editor_mode';

	var toggler = document.createElement('div');

	toggler.dynano = this;

	this.toggler = toggler;

	if ( !this.object.id )

		this.object.id = 'dynano_auto_' + Math.floor(Math.random() * 1000000);

	toggler.s_mode_text = $lang.get('editor_btn_wikitext');

	toggler.s_mode_graphical = $lang.get('editor_btn_graphical');

	toggler.set_text = function()

	{

		if ( this.dynano.object.dnIsMCE == 'yes' )

			this.dynano.destroyMCE();

		this.innerHTML = '';

		this.appendChild(document.createTextNode(this.s_mode_text + ' | '));

		var link = document.createElement('a');

		link.href = '#';

		link.onclick = function()

		{

			this.parentNode.set_graphical();

			return false;

		}

		link.appendChild(document.createTextNode(this.s_mode_graphical));

		this.appendChild(link);

		createCookie('enano_editor_mode', 'text', 365);

	}

	toggler.set_graphical = function()

	{

		this.dynano.switchToMCE();

		this.innerHTML = '';

		var link = document.createElement('a');

		link.href = '#';

		link.onclick = function()

		{

			this.parentNode.set_text();

			return false;

		}

		link.appendChild(document.createTextNode(this.s_mode_text));

		this.appendChild(link);

		this.appendChild(document.createTextNode(' | ' + this.s_mode_graphical));

		createCookie('enano_editor_mode', 'tinymce', 365);

	}

	toggler.style.styleFloat = 'right';

	toggler.style.cssFloat = 'right';

	if ( pos == P_BOTTOM )

	{

		insertAfter(this.object.parentNode, toggler, this.object);

	}

	else

	{

		this.object.parentNode.insertBefore(toggler, this.object);

	}

	if ( readCookie(cookiename) == 'tinymce' )

	{

		toggler.set_graphical();

	}

	else

	{

		toggler.set_text();

	}

}

function DN_WikitextToXHTML(text)

{

	return DN_AjaxGetTransformedText(text, 'xhtml');

}

function DN_XHTMLToWikitext(text)

{

	return DN_AjaxGetTransformedText(text, 'wikitext');

}

// AJAX to the server to transform text

function DN_AjaxGetTransformedText(text, to)

{

	// get an XHR instance

	var ajax = ajaxMakeXHR();

	var uri = stdAjaxPrefix + '&_mode=transform&to=' + to;

	var parms = 'text=' + ajaxEscape(text);

	try

	{

		ajax.open('POST', uri, false);

		ajax.setRequestHeader("Content-type", "application/x-www-form-urlencoded");

		// Setting Content-length in Safari triggers a warning

		if ( !is_Safari )

		{

			ajax.setRequestHeader("Content-length", parms.length);

		}

		ajax.send(parms);

		// async request, so if status != 200 at this point then we're screwed

		if ( ajax.readyState == 4 && ajax.status == 200 )

		{

			var response = String(ajax.responseText + '');

			if ( !check_json_response(response) )

			{

				handle_invalid_json(response);

				return text;

			}

			response = parseJSON(response);

			if ( response.mode == 'error' )

			{

				alert(response.error);

				return text;

			}

			return response.text;

		}

	}

	catch(e)

	{

		console.warn('DN_AjaxGetTransformedText: XHR failed');

	}

	return text;

}

DNobj.prototype.addClass = function(clsname) { addClass(this.object, clsname); return this; };

DNobj.prototype.rmClass  = function(clsname) { rmClass( this.object, clsname); return this; };

DNobj.prototype.hasClass = function(clsname) { return hasClass(this.object, clsname); };

DNobj.prototype.Height   = function()        { return __DNObjGetHeight(this.object); }

DNobj.prototype.Width    = function()        { return __DNObjGetWidth( this.object); }

DNobj.prototype.Left     = function()        { /* return this.object.offsetLeft; */ return __DNObjGetLeft(this.object); }

DNobj.prototype.Top      = function()        { /* return this.object.offsetTop;  */ return __DNObjGetTop( this.object); }