Current File : /home/dopla/www/wp-content/plugins/ml-slider/admin/slideshows/Themes.php
<?php
if (!defined('ABSPATH')) die('No direct access.');
/**
* Class to handle themes
*/
class MetaSlider_Themes {
/**
* Theme instance
*
* @var object
* @see get_instance()
*/
protected static $instance = null;
/**
* Theme name
*
* @var string
*/
public $theme_id;
/**
* List of supported slide types
*
* @var array
*/
public $supported_slideshow_libraries = array('flex', 'responsive', 'nivo', 'coin');
/**
* Constructor
*/
public function __construct() {}
/**
* Used to access the instance
*/
public static function get_instance() {
if (null === self::$instance) self::$instance = new self();
return self::$instance;
}
/**
* Method to get all the free themes from the theme directory
*
* @return array|WP_Error whether the file was included, or error class
*/
public function get_all_free_themes() {
if (!file_exists(METASLIDER_THEMES_PATH . 'manifest.php')) {
return new WP_Error('manifest_not_found', __('No themes found.', 'ml-slider'), array('status' => 404));
}
$themes = (include METASLIDER_THEMES_PATH . 'manifest.php');
// Let theme developers or others define a folder to check for themes
$extra_themes = apply_filters('metaslider_extra_themes', array());
foreach ($extra_themes as $location) {
// Make sure there is a manifest
if (file_exists(trailingslashit($location) . 'manifest.php')) {
$manifest = include (trailingslashit($location) . 'manifest.php');
// Make sure each theme has an existing folder, title, description
foreach ($manifest as $data) {
if (file_exists(trailingslashit($location) . $data['folder'])
&& isset($data['title'])
&& isset($data['description'])
&& isset($data['screenshot_dir'])) {
// Identify this as an external theme
$data['type'] = 'external';
// Add theirs to the top
array_unshift($themes, $data);
}
}
}
}
return $themes;
}
/**
* Method to get all custom themes from the database.
*
* @return array Returns an array of custom themes or an empty array if none found
*/
public function get_custom_themes() {
$custom_themes = array();
if ((bool) $themes = get_option('metaslider-themes')) {
foreach($themes as $id => $theme) {
$custom_themes[$id] = array(
'folder' => $id,
'title' => $theme['title'],
'type' => 'custom'
);
}
}
return $custom_themes;
}
/**
* Method to get details about a theme
*
* @param string $id - Id of the slideshow
* @return void
*/
public function details($id) {
}
/**
* Method to get the object by theme name/id
*
* @param string $slideshow_id - Id of the slideshow
* @param string $theme_id - Id of the theme
*
* @return bool|array - The theme object or false if no theme
*/
public function get_theme_object($slideshow_id, $theme_id) {
if (is_wp_error($free_themes = $this->get_all_free_themes())) {
$free_themes = array();
}
$themes = array_merge($free_themes, $this->get_custom_themes());
foreach($themes as $one_theme) {
if ($one_theme['folder'] === $theme_id) {
$theme = $one_theme;
}
}
// If the folder isn't set then something went wrong or no theme is set.
if (!isset($theme['folder']) || '' == $theme['folder']) {
return false;
}
// If the version isn't set, grab the latest
if (!isset($theme['version']) || '' == $theme['version']) {
$theme['version'] = $this->get_latest_version($theme['folder']);
}
return $theme;
}
/**
* Method to get a random theme
*
* @param bool $all - Whether to include themes that arent fully supported
*
* @return bool|array - The theme object or false if no theme
*/
public function random($all = false) {
if (is_wp_error($free_themes = $this->get_all_free_themes())) {
return false;
}
if ($all) return array_rand($free_themes);
$themes = array();
foreach($free_themes as $id => $theme) {
// Be sure the theme supports all slider libraries
if (count($this->supported_slideshow_libraries) === count($theme['supports'])) {
$themes[$id] = $theme;
}
}
return array_rand($themes);
}
/**
* Method to get the current set theme for a slideshow
*
* @param string $slideshow_id - Id of the slideshow
*
* @return bool|array - The theme object or false if no theme
*/
public function get_current_theme($slideshow_id) {
$theme = get_post_meta($slideshow_id, 'metaslider_slideshow_theme', true);
// If the theme is none, it means no theme is set (happens if they remove a theme)
// $theme may be WP_Error due to a bug in 3.9.1
if ('none' === $theme || is_wp_error($theme)) return false;
$is_a_custom_theme = (isset($theme['folder']) && ('_theme' === substr($theme['folder'], 0, 6)));
// Check here for a legacy theme OR a custom theme
if (!isset($theme['folder']) || $is_a_custom_theme) {
$settings = get_post_meta($slideshow_id, 'ml-slider_settings', true);
// * This might be a nivo theme or a custom theme (pro)
if (isset($settings['theme'])) {
$settings['theme'] = in_array($settings['theme'], array('light', 'dark', 'bar')) ? 'nivo-' . $settings['theme'] : $settings['theme'];
$theme = $this->get_theme_object($slideshow_id, $settings['theme']);
// Update the theme to the new system
update_post_meta($slideshow_id, 'metaslider_slideshow_theme', $theme);
}
}
// If the folder isn't set then something went wrong or no theme is set.
if (!isset($theme['folder']) || '' == $theme['folder']) {
return false;
}
// If the version isn't set, grab the latest
if (!isset($theme['version']) || '' == $theme['version']) {
$theme['version'] = $this->get_latest_version($theme['folder']);
}
// At this point, if it's a custom theme we are okay
if ($is_a_custom_theme) return $theme;
// If the theme exists via outside source
$extra_themes = apply_filters('metaslider_extra_themes', array());
foreach ($extra_themes as $location) {
if (file_exists(trailingslashit($location) . trailingslashit($theme['folder']) . trailingslashit($theme['version']) . 'theme.php')) {
return $theme;
}
}
// If the folder is in in our theme selection
if (file_exists(METASLIDER_THEMES_PATH . trailingslashit($theme['folder']) . $theme['version'])) {
return $theme;
}
// Remove the broken/not found theme
$this->set($slideshow_id, array());
// The theme wasnt found anywhere
return new WP_Error('theme_not_found', __('We removed your selected theme as it could not be found. Was the folder deleted?', 'ml-slider'));
}
/**
* Method to get the version of the latest theme
*
* @param string $folder - Folder name in /themes/
* @return string the version number
*/
public function get_latest_version($folder) {
// If the changelog isn't there for some reason just assume it's v1.0.0
if (!file_exists(METASLIDER_THEMES_PATH . trailingslashit($folder) . 'changelog.php')) {
return 'v1.0.0';
}
$changelog = (include METASLIDER_THEMES_PATH . trailingslashit($folder) . 'changelog.php');
return current(array_keys($changelog));
}
/**
* Method to set the theme
*
* @param int|string $slideshow_id The id of the current slideshow
* @param array $theme The selected theme object
* @return bool true on successful update, false on failure.
*/
public function set($slideshow_id, $theme) {
// For legacy reasons we have to query the settings
$settings = get_post_meta($slideshow_id, 'ml-slider_settings', true);
// If the theme isn't set, then they attempted to remove the theme
if (!isset($theme['folder']) || is_wp_error($theme)) {
$settings['theme'] = 'none';
update_post_meta($slideshow_id, 'ml-slider_settings', $settings);
return update_post_meta($slideshow_id, 'metaslider_slideshow_theme', 'none');
}
// For custom themes, it's easier to use the legacy setting because the pro plugin
// already hooks into it.
if ('_theme' === substr($theme['folder'], 0, 6)) {
$settings['theme'] = $theme['folder'];
update_post_meta($slideshow_id, 'ml-slider_settings', $settings);
} else if (isset($settings['theme'])) {
// If the theme isn't a custom theme, we should unset the legacy setting
// unset($settings['theme']); // ! Pro requires this to be set
$settings['theme'] = '';
update_post_meta($slideshow_id, 'ml-slider_settings', $settings);
}
// This will return false if the data is the same, unfortunately
return (bool) update_post_meta($slideshow_id, 'metaslider_slideshow_theme', $theme);
}
/**
* Load in the selected theme assets.
*
* @param int|string $slideshow_id The id of the current slideshow
* @param string $theme_id The folder name of a theme
*
* @return bool|WP_Error whether the file was included, or error class
*/
public function load_theme($slideshow_id, $theme_id = null) {
// Don't load a theme on the editor page.
if (is_admin() && function_exists('get_current_screen') && $screen = get_current_screen()) {
if ('metaslider-pro_page_metaslider-theme-editor' === $screen->id) return false;
}
$theme = (is_null($theme_id)) ? $this->get_current_theme($slideshow_id) : $this->get_theme_object($slideshow_id, $theme_id);
// 'none' is the default theme to load no theme.
if ('none' == $theme_id) return false;
if (is_wp_error($theme) || false === $theme) return $theme;
// We have a theme, so lets add the class to the body
$this->theme_id = $theme['folder'];
// Add the theme class name to the slideshow
add_filter('metaslider_css_classes', array($this, 'add_theme_class'), 10, 3);
// Check our themes for a match
if (file_exists(METASLIDER_THEMES_PATH . $theme['folder'])) {
$theme_dir = METASLIDER_THEMES_PATH . $theme['folder'];
}
// Let theme developers or others define a folder to check for themes (this lets them override our themes)
$extra_themes = apply_filters('metaslider_extra_themes', array(), $slideshow_id);
foreach ($extra_themes as $location) {
if (file_exists(trailingslashit($location) . $theme['folder'])) {
$theme_dir = trailingslashit($location) . $theme['folder'];
}
}
// Load in the base theme class
if (isset($theme_dir) && isset($theme['version'])) {
require_once(METASLIDER_THEMES_PATH . 'ms-theme-base.php');
return include_once trailingslashit($theme_dir) . trailingslashit($theme['version']) . 'theme.php';
}
// This should be a custom theme (pro)
return $theme;
}
/**
* Add the theme to the class so styles will apply. The theme can be
* overridden, for example from the preview functionality
*
* @param string $class The slideshow classlist
* @param string $slideshow_id The id of the slideshow
* @param string $settings The settings for the slideshow
*/
public function add_theme_class($class, $slideshow_id, $settings) {
$class .= ' ms-theme-' . $this->theme_id;
return $class;
}
}
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