egroupware_official/phpgwapi/inc/class.javascript.inc.php

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<?php
/**************************************************************************\
* phpGroupWare API - JavaScript *
* Written by Dave Hall skwashd at phpgroupware.org *
* Copyright (C) 2003 Free Software Foundation Inc *
* -------------------------------------------------------------------------*
* This library is part of the phpGroupWare API *
* http://www.phpgroupware.org/api *
* ------------------------------------------------------------------------ *
* 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. *
\**************************************************************************/
/* $Id$ */
/**
* phpGroupWare javascript support class
*
* Only instanstiate this class using:
* <code>
* if(!@is_object($GLOBALS['phpgw']->js))
* {
* $GLOBALS['phpgw']->js = CreateObject('phpgwapi.javascript');
* }
* </code>
*
* This way a theme can see if this is a defined object and include the data,
* while the is_object() wrapper prevents whiping out existing data held in
* this instance variables, primarily the $files variable.
*
* Note: The package arguement is the subdirectory of js - all js should live in subdirectories
*
* @package phpgwapi
* @subpackage sessions
* @abstract
* @author Dave Hall
* @copyright &copy; 2003 Free Software Foundation
* @license GPL
* @uses template
* @link http://docs.phpgroupware.org/wiki/classJavaScript
*/
class javascript
{
/**
* @var array elements to be used for the on(Un)Load attributes of the body tag
*/
var $body;
/**
* @var array list of validated files to be included in the head section of a page
*/
var $files;
/**
* @var object used for holding an instance of the Template class
*/
var $t;
/**
* Constructor
*
* Initialize the instance variables
*/
function javascript()
{
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$this->t = CreateObject('phpgwapi.Template', ExecMethod('phpgwapi.phpgw.common.get_tpl_dir','phpgwapi'));
//not currently used, but will be soon - I hope :)
}
/**
* Returns the javascript required for displaying a popup message box
*
* @param string $msg the message to be displayed to user
* @returns string the javascript to be used for displaying the message
*/
function get_alert($msg)
{
return 'return alert("'.lang($msg).'");';
}
/**
* Adds on(Un)Load= attributes to the body tag of a page
*
* @returns string the attributes to be used
*/
function get_body_attribs()
{
$js = ($this->body['onLoad'] ? 'onLoad="' . $this->body['onLoad'] . '"' : '');
$js .= ($this->body['onUnload'] ? 'onUnLoad="' . $this->body['onUnload'] . '"': '');
return $js;
}
/**
* Returns the javascript required for displaying a confirmation message box
*
* @param string $msg the message to be displayed to user
* @returns string the javascript to be used for displaying the message
*/
function get_confirm($msg)
{
return 'return confirm("'.lang($msg).'");';
}
/**
* Used for generating the list of external js files to be included in the head of a page
*
* NOTE: This method should only be called by the template class.
* The validation is done when the file is added so we don't have to worry now
*
* @returns string the html needed for importing the js into a page
*/
function get_script_links()
{
$links = '';
if(!empty($this->files) && is_array($this->files))
{
$links = "<!--JS Imports from phpGW javascript class -->\n";
foreach($this->files as $app => $packages)
{
if(!empty($packages) && is_array($packages))
{
foreach($packages as $pkg => $files)
{
if(!empty($files) && is_array($files))
{
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foreach($files as $file => $ignored)
{
$links .= '<script type="text/javascript" src="'
. $GLOBALS['phpgw_info']['server']['webserver_url']
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. "/$app/js/$pkg/$file" . '.js">'
. "</script>\n";
}
}
}
}
}
}
return $links;
}
/**
* Sets an onLoad action for a page
*
* @param string javascript to be used
*/
function set_onload($code)
{
$this->body['onLoad'] = $code;
}
/**
* Sets an onUnload action for a page
*
* @param string javascript to be used
*/
function set_onunload($code)
{
$this->body['onUnload'] = $code;
}
/**
* DO NOT USE - NOT SURE IF I AM GOING TO USE IT - ALSO IT NEEDS SOME CHANGES!!!!
* Used for removing a file or package of files to be included in the head section of a page
*
* @param string $app application to use
* @param string $package the name of the package to be removed
* @param string $file the name of a file in the package to be removed - if ommitted package is removed
*/
function unset_script_link($app, $package, $file=False)
{
/* THIS DOES NOTHING ATM :P
if($file !== False)
{
unset($this->files[$app][$package][$file]);
}
else
{
unset($this->files[$app][$package]);
}
*/
}
/**
* Checks to make sure a valid package and file name is provided
*
* @param string $package package to be included
* @param string $file file to be included - no ".js" on the end
* @param string $app application directory to search - default = phpgwapi
* @returns bool was the file found?
*/
function validate_file($package, $file, $app='phpgwapi')
{
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if(is_readable(PHPGW_INCLUDE_ROOT .SEP .$app .SEP .'js' .SEP . $package .SEP. $file . '.js'))
{
$this->files[$app][$package][$file] = $file;
return True;
}
elseif($app != 'phpgwapi')
{
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if(is_readable(PHPGW_INCLUDE_ROOT .SEP .'phpgwapi' .SEP .'js' .SEP . $package .SEP . $file . '.js'))
{
$this->files['phpgwapi'][$package][$file] = $file;
return True;
}
return False;
}
}
}
?>