<?php
/**
* Template helpers for generating menus
*
* PHP version 4 and 5
*
* LICENSE: This source file is subject to LGPL license
* that is available through the world-wide-web at the following URI:
* http://www.gnu.org/copyleft/lesser.html
*
* @package    moduleAPI
* @subpackage menu
* @author     http://www.linux.lk/~chamindra
* @copyright  Lanka Software Foundation - http://www.opensource.lk
*/

// Main menu template helper
/**
 * shn_mainmenuitem
 *
 * @param mixed $action
 * @param mixed $desc
 * @param mixed $module
 * @access public
 * @return void
 */
function shn_mainmenuitem($action, $desc, $module = null )
{
    global $global;
    if ( null == $module ) $module = $global['module'];
?>
    <li><a href="index.php?mod=<?php echo $module;?>&amp;act=<?php echo $action;?>"><?php echo $desc;?></a></li>
<?php
}


/**
 * shn_mainmenuopen
 *
 * @param mixed $desc
 * @access public
 * @return void
 */
function shn_mainmenuopen($desc )
{
?>
    <div id="menuwrap">
        <h2><?php echo _('VMOSS Main')?></h2>
        <ul id="menu">
<?php
}

/**
 * shn_mainmenuclose
 *
 * @access public
 * @return void
 */
function shn_mainmenuclose()
{
?>
        </ul>
    </div> <!-- /modmenuwrap -->
<?php
}

/**
 * shn_mod_menuitem
 *
 * @param mixed $action
 * @param mixed $desc
 * @param mixed $module
 * @access public
 * @return void
 */
function shn_mod_menuitem($action, $desc, $module = null )
{
    global $global;

    if ( null == $module ) $module = $global['module'];
    shn_breadcrumb_set_nicename($module, $action, $desc);
?>
    <li><a href="index.php?mod=<?php echo $module;?>&amp;act=<?php echo $action;?>"><?php echo $desc;?></a></li>
<?php
}


/**
 * shn_mod_menuopen
 *
 * @param mixed $desc
 * @access public
 * @return void
 */
function shn_mod_menuopen($desc )
{
?>
    <div id="modmenuwrap">
    <h2><?=$desc?></h2>
    <ul id="modmenu">
<?php
}

/**
 * shn_mod_menuclose
 *
 * @access public
 * @return void
 */
function shn_mod_menuclose()
{
?>
    </ul>
    </div> <!-- /modmenuwrap -->
<?php
}

/**
 * shn_sub_mod_menuitem
 *
 * @param mixed $action
 * @param mixed $desc
 * @param mixed $module
 * @access public
 * @return void
 */
function shn_sub_mod_menuitem($action, $desc, $module = null )
{
    global $global;
    if ( null == $module ) $module = $global['module'];
    shn_breadcrumb_set_nicename($module, $action, $desc);
?>
		<li><a href="index.php?mod=<?php echo $module;?>&amp;act=<?php echo $action;?>"><?php echo $desc;?></a></li>
<?php
    global $sub_menu_id;
    $sub_menu_id=$action;
}

/**
 * shn_sub_mod_menuopen
 *
 * @param mixed $desc
 * @access public
 * @return void
 */
$sub_menu_id='sub';
function shn_sub_mod_menuopen($desc)
{
    global $sub_menu_id;
    static $num=0;
    $id='sub'.$sub_menu_id.$num;
    $num++;
?>
	<li><a href="#" onclick="expand('<?php echo $id;?>',this);" class="smopen"><?php echo $desc;?></a>
		<ul id="<?php echo $id;?>">
<?php
}

/**
 * shn_sub_mod_menuclose
 *
 * @access public
 * @return void
 */
function shn_sub_mod_menuclose()
{
?>
		</ul>
	</li> <!-- /modmenuwrap -->
<?php
}

function shn_adm_menuopen($desc=null)
{
?>
    <div id="submenu_v">
<?php
}

function shn_adm_menuclose()
{
?>
    </div>
<?php
}

function shn_adm_menuitem($action, $desc, $module = null )
{
    global $global;
    if ( null == $module ) $module = $global['module'];
    shn_breadcrumb_set_nicename($module, $action, $desc);
?>
    <a <?=($global['action']==$action?'class="selected" ':'');?> href="index.php?mod=<?=$module?>&amp;act=<?=$action?>"><?=$desc?></a>
<?php
}

// BREAD CRUMB functions

// set a nicename
function shn_breadcrumb_set_nicename($module, $action, $desc)
{
    global $global;
    $global['shn_q_mod='.$module.'&act='.$action.'_nicename'] = $desc;
}

function shn_breadcrumb_get_nicename($module, $action)
{
    global $global;
    return $global['shn_q_mod='.$module.'&act='.$action.'_nicename'];
}


// pushes a link onto the breadcrumb stack
function shn_breadcrumb_push($nicename, $action = null, $module = null)
{
    global $global;

    if ( null == $module ) $module = $global['module'];
    if ( null == $action ) $action = $global['action'];

    if ( !array_key_exists('shn_breadcrumb', $_SESSION ))
        $_SESSION['shn_breadcrumb'] = array();

    $last_crumb = end($_SESSION['shn_breadcrumb']);
    $last_module = $last_crumb[2];

    // create the query string. $action might have more appended
    $query_string = 'mod='.$module.'&amp;act='.$action;

    // only push the breadcrumb if it is not the home page and
    // if it is not the immidiately previous page in the history
    if ( $last_module == $module) {
        array_pop($_SESSION['shn_breadcrumb']);
    }
    array_push($_SESSION['shn_breadcrumb'], array($nicename, $query_string, $module));

    if (count($_SESSION['shn_breadcrumb']) > 3)
        array_shift($_SESSION['shn_breadcrumb']);
}

// pops a breadcrumb item off the top of the stack
function shn_breadcrumb_pop()
{
    return array_pop($_SESSION['shn_breadcrumb']);
}

// displays the breadcrumb within the navigation section
function shn_breadcrumb_display()
{
    global $conf;
    $current_mod = '';
    $breadcrumb = '';


    // create the breadcrumb array if it does not exist
    if ( !array_key_exists('shn_breadcrumb', $_SESSION )) {
        $_SESSION['shn_breadcrumb'] = array();
    }

    // clear the breadcrumb array if the user has logged out
    if ( $_SESSION['logged_in'] != true ) {
        $_SESSION['shn_breadcrumb'] = array();
    }

    //foreach ($_SESSION['shn_breadcrumb'] as $i ) {
    for ($j=0 ; $j < sizeof($_SESSION['shn_breadcrumb'])-1 ; $j++) {

        $i = $_SESSION['shn_breadcrumb'][$j];

        // check if this is an admin function, else report it under administration
        $pos = strpos($i[1], 'act=adm_');
        if ( false === $pos ) {
            $module_name = $conf['mod_'.$i[2].'_name'];
        } else {
            $module_name = $conf['mod_admin_name'];
        }

        // only prefix the module name if the next item is different
        if ($current_mod != $module_name) {
            $breadcrumb .= '<a href="?mod='.$i[2].'"><b>'.$module_name.'</b></a>: ';
            $current_mod = $module_name;
        }
        $breadcrumb .= '<a href="?'.$i[1].'">'.$i[0].'</a> > ';

    }

    // Display the breadcrumb
    if ( $breadcrumb != '' ) {
        // @TODO: Remove the space hack and make this a proper list for CSS
        echo '<div id="breadcrumbs">&nbsp;&nbsp;&nbsp;&nbsp;<b>';
        echo _('Switch back to').' </b>'.$breadcrumb.'</div>';
    }

}


/**
 * Open tab menu
 *
 * @access public
 * @return void
 */
function shn_tabmenu_open(){
?>
    <ul id="tabmenu">
<?
}


/**
 * Close tab menu
 *
 * @access public
 * @return void
 */
function shn_tabmenu_close(){
?>
    </ul>
<?
}


/**
 * Add an tab menu item
 *
 * @param mixed $action
 * @param mixed $desc
 * @param mixed $module
 * @access public
 * @return void
 */
function shn_tabmenu_item($action, $desc, $module = null){
    global $global;
    if ( null == $module ) $module = $global['module'];
    static $count=0;
    $active=($count == $_GET['tabid'])?"id='active'":'';
    $tabid='&tabid='.$count++;
    shn_breadcrumb_set_nicename($module, $action, $desc);
?>
        <li <?php echo $active ?>>
        <a href="index.php?mod=<?php echo $module?>&amp;act=<?php echo $action.$tabid?>"><span><?php echo $desc?></span></a></li>
<?php
}
?>