/*##################################################
 *                                bbcode.js
 *                            -------------------
 *   begin                : August 01, 2005
 *   copyright          : (C) 2005 Viarre Régis
 *   email                : crowkait@phpboost.com
 *
 *
###################################################
 *
 *   This program is free software; you can redistribute it 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 more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
###################################################*/

function textarea_resize(id, px, type)
{
	var textarea = document.getElementById(id);
	if( type == 'height' )
	{
		var current_height = parseInt(textarea.style.height) ? parseInt(textarea.style.height) : 300;
		var new_height = current_height + px;
		
		if( new_height > 40 )
			textarea.style.height = new_height + "px";
	}
	else
	{
		var current_width = parseInt(textarea.style.width) ? parseInt(textarea.style.width) : 150;
		var new_width = current_width + px;
		
		if( new_width > 40 )
			textarea.style.width = new_width + "px";
	}
	
	return false;
}

//Insertion dans le champs.
function simple_insert(open_balise, close_balise, field)
{
	var textarea = document.getElementById(field);
	var scroll = textarea.scrollTop;
	
	if( close_balise != "" && close_balise != "smile" )
		textarea.value += '[' + open_balise + '][/' + close_balise + ']';
	else if( close_balise == "smile" )
		textarea.value += ' ' + open_balise + ' ';
		
	textarea.focus();
	textarea.scrollTop = scroll;
	return;
}

//Récupération de la sélection sur netscape, ajout des balises autour.
function netscape_sel(target, open_balise, close_balise)
{
	var sel_length = target.textLength;
	var sel_start = target.selectionStart;
	var sel_end = target.selectionEnd;
	var scroll = target.scrollTop; //Position verticale.
	
	if( sel_end == 1 || sel_end == 2 )
	{
		sel_end = sel_length;
	}

	var string_start = (target.value).substring(0, sel_start);
	var selection = (target.value).substring(sel_start, sel_end);
	var string_end = (target.value).substring(sel_end, sel_length);

	if( close_balise != "" && selection == "" && close_balise != "smile" )
	{
		target.value = string_start + open_balise + close_balise + string_end;
		target.setSelectionRange(string_start.length + open_balise.length, target.value.length - string_end.length - close_balise.length);
		target.focus();
	}
	else if( close_balise == "smile" )
	{
		target.value = string_start + selection + ' ' + open_balise + ' ' + string_end;	
		target.setSelectionRange(string_start.length + open_balise.length, target.value.length - string_end.length);	
		target.focus();		
	}
	else
	{
		target.value = string_start + open_balise + selection + close_balise + string_end;
		target.setSelectionRange(string_start.length + open_balise.length, target.value.length - string_end.length - close_balise.length);
		target.focus();
	}
	
	target.scrollTop = scroll; //Remet à la bonne position le textarea.

	return;
}

//Récupération de la sélection sur IE, ajout des balises autour.
function ie_sel(target, open_balise, close_balise)
{
	selText = false;
	var scroll = target.scrollTop; //Position verticale.
	
	selection = document.selection.createRange().text; // Sélection

	if( close_balise != "" && selection == "" && close_balise != "smile" )
		document.selection.createRange().text = open_balise + close_balise;
	else if( close_balise == "smile" )
		document.selection.createRange().text = selection + open_balise + ' ';
	else
		document.selection.createRange().text = open_balise + selection + close_balise;		
	
	target.scrollTop = scroll; //Remet à la bonne position le textarea.
	selText = '';
	
	return;
}

//Fonction d'insertion du BBcode dans le champs, tient compte du navigateur utilisé.
function insertbbcode(open_balise, close_balise, field)
{
	var area = document.getElementById(field);
	var nav = navigator.appName; //Recupère le nom du navigateur

	area.focus();

	if( nav == 'Microsoft Internet Explorer' ) // Internet Explorer
		ie_sel(area, open_balise, close_balise);
	else if( nav == 'Netscape' || nav == 'Opera' ) //Netscape ou opera
		netscape_sel(area, open_balise, close_balise);
	else //insertion normale (autres navigateurs)
		simple_insert(open_balise, close_balise, field);

	return;
}

//Insertion dans le champs des codes de type select.
function insertbbcode_select(id_select, close_balise, field)
{			
	var select = document.getElementById(id_select + field);
	
	if( select.value != '' )				
		insertbbcode('[' + id_select + '=' + select.value + ']', close_balise, field);
	
	//On remet la valeur par défaut.
	select.options[0].selected = true;
	
	return;
}	

//Masquage du div.
function show_bbcode_div(divID, hide)
{
	var div = document.getElementById(divID);
	if( div.style.display == 'none' )
		div.style.display = 'block';
	else if( hide )
		div.style.display = 'none';
}

var delay = 1000; //Délai après lequel le bloc est automatiquement masqué, après le départ de la souris.
var timeout;
var displayed = false;
var previous_bblock;

//Affiche le bloc.
function bb_display_block(divID, field)
{
	var i;
	
	if( timeout )
		clearTimeout(timeout);
	
	var block = document.getElementById('bb_block' + divID + field);
	if( block.style.display == 'none' )
	{
		if( document.getElementById(previous_bblock) )
			document.getElementById(previous_bblock).style.display = 'none';
		block.style.display = 'block';
		displayed = true;
		previous_bblock = 'bb_block' + divID + field;
	}
	else
	{
		block.style.display = 'none';
		displayed = false;
	}
}

//Cache le bloc.
function bb_hide_block(bbfield, field, stop)
{
	if( stop && timeout )
	{	
		clearTimeout(timeout);
	}
	else if( displayed )
	{
		clearTimeout(timeout);
		timeout = setTimeout('bb_display_block(\'' + bbfield + '\',  \'' + field + '\')', delay);
	}	
}