netjukebox

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function someFunction(var) {
	if (...) {
		...
		...
	}
	else if (...) {
		...
	...
}

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// Merge javascripts with JSMinPlus
$merged = 'javascript-njb/merged.js';
$source = array('javascript-njb/source/initialize.js',
				'javascript-njb/source/overlib.js',
				'javascript-njb/source/overlib_cssstyle.js',
				'javascript-njb/source/sha1.js');

$filemtime = (file_exists($merged)) ? filemtime($merged) : 0;

$modified = false;
foreach ($source as $file)
	if (filemtime($file) > $filemtime) {
		$modified = true;
		break;
	}

if ($modified) {
	require_once(NJB_HOME_DIR . 'include/jsminplus.php');
	$content = '';
	foreach ($source as $file) {
		$script = @file_get_contents($file) or message(__FILE__, __LINE__, 'error', '[b]Failed to open file:[/b][br]' . $file . '[list][*]Check file permission[/list]');
		$content .= JSMinPlus::minify($script);
	}
	if (file_put_contents($merged, $content) === false)
		message(__FILE__, __LINE__, 'error', '[b]Failed to write file:[/b][br]' . $merged);
}

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$cfg['minify']						= true;

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<?php
//  +------------------------------------------------------------------------+
//  | netjukebox, Copyright © 2001-2012 Willem Bartels                       |
//  |                                                                        |
//  | http://www.netjukebox.nl                                               |
//  | http://forum.netjukebox.nl                                             |
//  |                                                                        |
//  | 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 3 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, see <http://www.gnu.org/licenses/>.  |
//  +------------------------------------------------------------------------+




//  +------------------------------------------------------------------------+
//  | css hash                                                               |
//  +------------------------------------------------------------------------+
function css_hash() {
	global $cfg;
	
	$hash_data = ($cfg['minify']) ? 'CssMin3.0.1' : 'source';
	$hash_data .= $cfg['skin'];
	$hash_data .= filemtime('skin/' . $cfg['skin'] . '/styles.css');
	
	return md5($hash_data);
}




//  +------------------------------------------------------------------------+
//  | javascript hash                                                        |
//  +------------------------------------------------------------------------+
function javascript_hash() {
	global $cfg;
	
	$source = array('javascript-src/initialize.js',
					'javascript-src/overlib.js',
					'javascript-src/overlib_cssstyle.js',
					'javascript-src/sha1.js');
	
	$hash_data = ($cfg['minify']) ? 'JSMinPlus1.4' : 'source';
	foreach ($source as $file)
		$hash_data .= filemtime($file);
	
	return md5($hash_data);
}

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$header['head'] .= "\t" . '<link rel="stylesheet" type="text/css" href="minify.php?action=css&hash=' . css_hash() . '">' . "\n";
$header['head'] .= "\t" . '<script src="minify.php?action=javascript&hash=' . javascript_hash() . '" type="text/javascript"></script>' . "\n";

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<?php
//  +------------------------------------------------------------------------+
//  | netjukebox, Copyright © 2001-2012 Willem Bartels                       |
//  |                                                                        |
//  | http://www.netjukebox.nl                                               |
//  | http://forum.netjukebox.nl                                             |
//  |                                                                        |
//  | 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 3 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, see <http://www.gnu.org/licenses/>.  |
//  +------------------------------------------------------------------------+




//  +------------------------------------------------------------------------+
//  | minify.php                                                             |
//  +------------------------------------------------------------------------+
require_once('include/initialize.inc.php');
require_once('include/stream.inc.php');

$action = get('action');

if		($action == 'css')			css();
elseif	($action == 'javascript')	javascript();

exit();



//  +------------------------------------------------------------------------+
//  | css (CssMin)                                                           |
//  +------------------------------------------------------------------------+
function css() {
	global $cfg;
	require_once('include/cssmin.php');
			
	$content = @file_get_contents('skin/' . $cfg['skin'] . '/styles.css');
	$content = str_replace('img/', 'skin/' . $cfg['skin'] . '/img/', $content);
	$content = str_replace('flag/', 'skin/' . $cfg['skin'] . '/flag/', $content);
		
	if ($cfg['minify'])
		$content = CssMin::minify($content);

	header("Cache-Control: max-age=31536000");
	$etag = '"never_expire"';
	streamData($content, 'text/css', false, false, $etag);
}




//  +------------------------------------------------------------------------+
//  | javascript (JSMinPlus)                                                 |
//  +------------------------------------------------------------------------+
function javascript() {
	global $cfg;
	require_once('include/jsminplus.php');
	
	$source = array('javascript-src/initialize.js',
					'javascript-src/overlib.js',
					'javascript-src/overlib_cssstyle.js',
					'javascript-src/sha1.js');
	
	$content = '';
	foreach ($source as $file)
		$content .= @file_get_contents($file);
	
	if ($cfg['minify'])	
		$content = JSMinPlus::minify($content);
	
	header("Cache-Control: max-age=31536000");
	$etag = '"never_expire"';
	streamData($content, 'application/javascript', false, false, $etag);
}
?>