Viewing file:  class.nextgen_style_manager.php (7.08 KB) -rw-rw-rw-
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<?php
class C_NextGen_Style_Manager
{
static $_instance = NULL;
var $directories = array();
var $unsafe_directories = array();
var $default_dir = '';
var $new_dir = '';
function __construct()
{
$this->default_dir = implode(DIRECTORY_SEPARATOR, array(
NGG_MODULE_DIR,
'ngglegacy',
'css'
));
$this->new_dir = implode(DIRECTORY_SEPARATOR, array(
rtrim(WP_CONTENT_DIR, "/\\"),
'ngg_styles'
));
// The last place we look for a stylesheet is in ngglegacy
$this->add_directory($this->default_dir);
// This is where all stylesheets should be stored
$this->add_directory($this->new_dir);
// We also check wp-content/ngg/styles
$this->add_directory(implode(DIRECTORY_SEPARATOR, array(
WP_CONTENT_DIR, 'ngg', 'styles'
)));
// We check the parent theme directory. Needed for child themes
$this->add_directory(rtrim(get_template_directory(), "/\\"), TRUE);
// We also check parent_theme/nggallery
$this->add_directory(implode(DIRECTORY_SEPARATOR, array(
rtrim(get_template_directory(), "/\\"),
'nggallery'
)), TRUE);
// We also check parent_theme/ngg_styles
$this->add_directory(implode(DIRECTORY_SEPARATOR, array(
rtrim(get_template_directory(), "/\\"),
'ngg_styles'
)), TRUE);
// We check the root directory of the theme. Users shouldn't store here,
// but they might
$this->add_directory(rtrim(get_stylesheet_directory(), "/\\"), TRUE);
// We also check the theme/nggallery directory
$this->add_directory(implode(DIRECTORY_SEPARATOR, array(
rtrim(get_stylesheet_directory(), "/\\"),
'nggallery'
)), TRUE);
// We also check the theme/ngg_styles directory
$this->add_directory(implode(DIRECTORY_SEPARATOR, array(
rtrim(get_stylesheet_directory(), "/\\"),
'ngg_styles'
)), TRUE);
}
/**
* Add a directory to search for stylesheets
* @param $dir
* @param bool $unsafe
*/
function add_directory($dir, $unsafe=FALSE)
{
array_unshift($this->directories, $dir);
if ($unsafe) {
$this->unsafe_directories[] = $dir;
}
}
/**
* Determines if a directory is upgrade-safe or not
* @param $dir
* @return bool
*/
function is_directory_unsafe($dir=FALSE)
{
if (!$dir) $dir = dirname($this->find_selected_stylesheet_abspath());
return in_array($dir, $this->unsafe_directories);
}
/**
* Determines if the directory is the default ngglegacy path
* @param $dir
* @return bool
*/
function is_default_dir($dir)
{
return rtrim($dir, "/\\") == $this->default_dir;
}
function get_new_dir($filename)
{
return implode(DIRECTORY_SEPARATOR, array(
rtrim($this->new_dir, "/\\"),
$filename
));
}
/**
* Gets the location where the selected stylesheet will be saved to
* @param bool|string $selected
* @return string
*/
function get_selected_stylesheet_saved_abspath($selected=FALSE)
{
if (!$selected) $selected = $this->get_selected_stylesheet();
$abspath = $this->find_selected_stylesheet_abspath($selected);
if ($this->is_default_dir(dirname($abspath))) {
$abspath = $this->get_new_dir(basename($abspath));
}
return $abspath;
}
function save($contents, $selected=FALSE)
{
$retval = FALSE;
if (!$selected) $selected = $this->get_selected_stylesheet();
$abspath = $this->get_selected_stylesheet_saved_abspath($selected);
wp_mkdir_p(dirname($abspath));
if (is_writable($abspath) OR (!@file_exists($abspath) && is_writable(dirname($abspath)))) {
$retval = file_put_contents($abspath, $contents);
}
return $retval;
}
/**
* Gets the selected stylesheet from the user
* @return mixed
*/
function get_selected_stylesheet()
{
$settings = C_NextGen_Settings::get_instance();
// use the same css resource for all subsites when wpmuStyle=true
if (!is_multisite() || (is_multisite() && $settings->get('wpmuStyle')))
return $settings->get('CSSfile', 'nggallery.css');
else
return C_Nextgen_Global_Settings::get_instance()->get('wpmuCSSfile');
}
/**
* Finds the location of the selected stylesheet
*/
function find_selected_stylesheet_abspath($selected=FALSE)
{
if (!$selected) $selected = $this->get_selected_stylesheet();
$retval = implode(DIRECTORY_SEPARATOR, array(
rtrim($this->default_dir, "/\\"),
$selected
));
foreach ($this->directories as $dir) {
$path = implode(DIRECTORY_SEPARATOR, array(
rtrim($dir, "/\\"),
$selected
));
if (@file_exists($path)) {
$retval = $path;
break;
}
}
$retval = str_replace('/', DIRECTORY_SEPARATOR, $retval);
return $retval;
}
/**
* Returns the url to the selected stylesheet
* @return mixed
*/
function get_selected_stylesheet_url($selected=FALSE)
{
if (!$selected)
$selected = $this->get_selected_stylesheet();
$abspath = $this->find_selected_stylesheet_abspath($selected);
// default_dir is the only resource loaded from inside the plugin directory
$type = 'content';
$url = content_url();
if (0 === strpos($abspath, $this->default_dir))
{
$type = 'plugins';
$url = plugins_url();
}
$retval = str_replace(
C_Fs::get_instance()->get_document_root($type),
$url,
$this->find_selected_stylesheet_abspath($selected)
);
return rtrim(str_replace('\\', '/', $retval), "/");
}
function find_all_stylesheets($dir = FALSE)
{
$retval = array();
if (!$dir)
$dir = $this->directories;
foreach (array_reverse($dir) as $dir) {
$path = implode(DIRECTORY_SEPARATOR, array(
rtrim($dir, "/\\"),
'*.css'
));
$files = glob($path);
if (is_array($files)) foreach ($files as $abspath) {
if (($meta = $this->get_stylesheet_metadata($abspath))) {
$filename = $meta['filename'];
$retval[$filename] = $meta;
}
}
}
return $retval;
}
/**
* Gets the metadata for a particular stylesheet
* @param $abspath
* @return array
*/
function get_stylesheet_metadata($abspath)
{
$retval = array();
$contents = file_get_contents($abspath);
$name = '';
$desc = '';
$version = '';
$author = '';
// Find the name of the stylesheet
if (preg_match("/CSS Name:(.*)/i", $contents, $match)) {
$name = trim($match[1]);
}
// Find the description of the stylesheet
if (preg_match("/Description:(.*)/", $contents, $match)) {
$desc = trim($match[1]);
}
// Find the author of the stylesheet
if (preg_match("/Author:(.*)/", $contents, $match)) {
$author = trim($match[1]);
}
// Find the version of the stylesheet
if (preg_match("/Version:(.*)/", $contents, $match)) {
$version = trim($match[1]);
}
if ($name) {
$retval = array(
'filename' => basename($abspath),
'abspath' => $abspath,
'name' => $name,
'description' => $desc,
'author' => $author,
'version' => $version
);
}
return $retval;
}
/**
* Gets an instance of the class
* @return C_NextGen_Style_Manager
*/
static function get_instance()
{
if (is_null(self::$_instance)){
$klass = get_class();
self::$_instance = new $klass();
}
return self::$_instance;
}
}
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