css.functions.php

<?php

######################################################################################################################
#
#	PURPOSE OF THIS FILE:
#	This file contains functions to edit the module CSS files (frontend.css and backend.css)
#
#	INVOKED BY:
# 	This file is invoked when a user clicks on the edit CSS button in the modify.php file
#
######################################################################################################################

/**
  Module developed for the Open Source Content Management System Website Baker (http://websitebaker.org)
  Copyright (C) year, Authors name
  Contact me: author(at)domain.xxx, http://authorwebsite.xxx

  This module is free software. You can redistribute it and/or modify it 
  under the terms of the GNU General Public License  - version 2 or later, 
  as published by the Free Software Foundation: http://www.gnu.org/licenses/gpl.html.

  This module 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.
**/

// prevent this file from being accesses directly
if(defined('WB_PATH') == false) {
	exit("Cannot access this file directly"); 
}

$mod_dir = basename(dirname(__FILE__));
require('kram/module_settings.default.php');
include('module_settings.php');

/**
	DEFINE LANGUAGE DEPENDING OUTPUTS FOR THE EDIT CSS PART
*/
$lang_dir = WB_PATH .'/modules/' .basename(dirname(__FILE__)) .'/languages/';
if(file_exists($lang_dir .LANGUAGE .'.php')) {
	// try to include custom language file if exists
	require_once($lang_dir .LANGUAGE .'.php');
} elseif(file_exists($lang_dir .'EN.php')) {
	// try to include default module language file
	require_once($lang_dir .'EN.php');
}
// set defaults if output varibles are not set in the languages files
if(!isset($CAP_EDIT_CSS)) $CAP_EDIT_CSS	= 'Edit CSS';
if(!isset($CAP_TOGGLE_CSS)) $CAP_TOGGLE_CSS	= 'Switch to ';
if(!isset($HEADING_CSS_FILE))	$HEADING_CSS_FILE = 'Actual module file: ';
if(!isset($TXT_EDIT_CSS_FILE)) $TXT_EDIT_CSS_FILE = 'Edit the CSS definitions in the textarea below.';


// this function checks if the specified optional module file exists
if (!function_exists('mod_file_exists')) {
	function mod_file_exists($mod_file='frontend.css') {
  	// extract the module directory
		$mod_dir = basename(dirname(__FILE__)) .'/' .$mod_file;
		return file_exists(WB_PATH .'/modules/' .$mod_dir);
	}
}

// this function displays a "Edit CSS" button in modify.php 
// if the optional module files (module.css, module.js) if exists
if (!function_exists('css_edit')) {
	function css_edit() {
		global $page_id, $section_id, $CAP_EDIT_CSS, $paramdelimiter;
  	// extract the module directory
		$mod_dir = basename(dirname(__FILE__));
		$frontend_css = mod_file_exists('frontend.css');
		$backend_css = mod_file_exists('backend.css');
		
		if($frontend_css || $backend_css) {
			 // display link to edit the optional CSS module files
		  $file = $frontend_css ? 'frontend.css' : 'backend.css';
			$output  = '<div class="mod_' .$mod_dir .'_edit_css"><a href="' .WB_URL .'/modules/' .$mod_dir .'/edit_css.php';
			$output .= '?page_id=' .$page_id.$paramdelimiter.'section_id=' .$section_id .$paramdelimiter.'edit_file=' .$file .'">';
			$output .= $CAP_EDIT_CSS .'</a></div>';
      echo $output;
    }
  }
}

// this function returns a secure module file from $_GET['edit_file']
if (!function_exists('edit_mod_file')) {
	function edit_mod_file() {
		$allowed_files = array('frontend.css', 'backend.css');
		if(isset($_GET['edit_file']) && in_array($_GET['edit_file'], $allowed_files)) {
			return $_GET['edit_file'];
		} elseif(mod_file_exists('frontend.css')) {
			return 'frontend.css';
		} elseif(mod_file_exists('backend_css')) {
			return 'backend.css';
		} else {
			return '';
		}
	}
}	

// this function displays a button to toggle between the optional module CSS files
// function is invoked from edit_css.php file
if (!function_exists('toggle_css_file')) {
	function toggle_css_file($base_css_file = 'frontend.css') {
		$allowed_mod_files = array('frontend.css', 'backend.css');
		if(!in_array($base_css_file, $allowed_mod_files)) return;
		
		global $page_id, $section_id, $CAP_TOGGLE_CSS, $paramdelimiter;
  	// extract the module directory
		$mod_dir = basename(dirname(__FILE__));
		
		$toggle_file = ($base_css_file == 'frontend.css') ? 'backend.css' : 'frontend.css';
		if(mod_file_exists($toggle_file)) {
   		// display button to toggle between the two CSS files: frontend.css, backend.css
			$output  = '<div class="mod_' .$mod_dir .'_edit_css"><a href="' .WB_URL .'/modules/' .$mod_dir .'/edit_css.php';
			$output .= '?page_id=' .$page_id .$paramdelimiter.'section_id=' .$section_id .$paramdelimiter.'edit_file=' .$toggle_file .'">';
			$output .= $CAP_TOGGLE_CSS .$toggle_file .'</a></div>';
    	echo $output;
		}
  }
}

?>