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controller.php
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<?php
/**
* Controller
* @package Simple Lightbox
* @author Archetyped
*/
class SLB_Lightbox extends SLB_Base {
/*-** Properties **-*/
protected $model = true;
/**
* Fields
* @var SLB_Fields
*/
public $fields = null;
/**
* Themes collection
* @var SLB_Themes
*/
var $themes = null;
/**
* Content types
* @var SLB_Content_Handlers
*/
var $handlers = null;
/**
* Template tags
* @var SLB_Template_Tags
*/
var $template_tags = null;
/**
* Properties for media attachments in current request
* > Key (string) Attachment URI
* > Value (assoc-array) Attachment properties (url, etc.)
* > source: Source URL
* @var array
*/
var $media_items = array();
/**
* Raw media items
* Used for populating media object on client-side
* > Key: Item URI
* > Value: Associative array of media properties
* > type: Item type (Default: null)
* > id: Item ID (Default: null)
* @var array
*/
private $media_items_raw = array();
/**
* Manage excluded content
* @var object
*/
private $exclude = null;
private $groups = array (
'auto' => 0,
'manual' => array(),
);
/**
* Validated URIs
* Caches validation of parsed URIs
* > Key: URI
* > Value: (bool) TRUE if valid
* @var array
*/
private $validated_uris = array();
/* Widget properties */
/**
* IDs widgets that have been processed
* @var array
*/
var $widgets_processed = array();
/**
* Widget callback key
* @var string
*/
var $widget_callback = 'callback';
/**
* Key to use to store original callback
* @var string
*/
var $widget_callback_orig = 'callback_orig';
/**
* Used to track if widget is currently being processed or not
* Set to Widget ID currently being processed
* @var bool|string
*/
var $widget_processing = false;
/**
* Constructor
*/
function __construct() {
parent::__construct();
//Init instances
$this->fields = new SLB_Fields();
$this->themes = new SLB_Themes($this);
if ( !is_admin() ) {
$this->template_tags = new SLB_Template_Tags($this);
}
}
/* Init */
public function _init() {
parent::_init();
$this->util->do_action('init');
}
/**
* Declare client files (scripts, styles)
* @uses parent::_client_files()
* @return void
*/
protected function _client_files($files = null) {
$js_path = 'client/js/';
$js_path .= ( SLB_DEV ) ? 'dev' : 'prod';
$files = array (
'scripts' => array (
'core' => array (
'file' => "$js_path/lib.core.js",
'deps' => 'jquery',
'enqueue' => false,
'in_footer' => true,
),
'view' => array (
'file' => "$js_path/lib.view.js",
'deps' => array('[core]'),
'context' => array( array('public', $this->m('is_request_valid')) ),
'in_footer' => true,
),
),
'styles' => array (
'core' => array (
'file' => 'client/css/app.css',
'context' => array('public'),
)
)
);
parent::_client_files($files);
}
/**
* Register hooks
* @uses parent::_hooks()
*/
protected function _hooks() {
parent::_hooks();
/* Admin */
add_action('admin_menu', $this->m('admin_menus'));
$this->util->add_filter('admin_plugin_row_meta_support', $this->m('admin_plugin_row_meta_support'));
/* Init */
add_action('wp', $this->m('_hooks_init'));
}
/**
* Init Hooks
*/
public function _hooks_init() {
if ( $this->is_enabled() ) {
$priority = $this->util->priority('low');
//Init lightbox
add_action('wp_footer', $this->m('client_footer'));
$this->util->add_action('footer_script', $this->m('client_init'), 1);
$this->util->add_filter('footer_script', $this->m('client_script_media'), 2);
// Link activation
add_filter('the_content', $this->m('activate_links'), $priority);
add_filter('get_post_galleries', $this->m('activate_galleries'), $priority);
$this->util->add_filter('post_process_links', $this->m('activate_groups'), 11);
$this->util->add_filter('validate_uri_regex', $this->m('validate_uri_regex_default'), 1);
// Content exclusion
$this->util->add_filter('pre_process_links', $this->m('exclude_content'));
$this->util->add_filter('pre_exclude_content', $this->m('exclude_shortcodes'));
$this->util->add_filter('post_process_links', $this->m('restore_excluded_content'));
//Grouping
if ( $this->options->get_bool('group_post') ) {
$this->util->add_filter('get_group_id', $this->m('post_group_id'), 1);
}
//Shortcode grouping
if ( $this->options->get_bool('group_gallery') ) {
add_filter('the_content', $this->m('group_shortcodes'), 1);
}
//Widgets
add_filter('dynamic_sidebar_params', $this->m('widget_process_setup'), PHP_INT_MAX);
}
}
/**
* Add post ID to link group ID
* @uses `SLB::get_group_id` filter
* @param array $group_segments Group ID segments
* @return array Modified group ID segments
*/
public function post_group_id($group_segments) {
$post = get_post();
//Prepend post ID to group ID
array_unshift($group_segments, $post->ID);
return $group_segments;
}
/**
* Init options
*/
protected function _options() {
//Setup options
$opts = array (
'groups' => array (
'activation' => array ( 'title' => __('Activation', 'simple-lightbox'), 'priority' => 10),
'grouping' => array ( 'title' => __('Grouping', 'simple-lightbox'), 'priority' => 20),
'ui' => array ( 'title' => __('UI', 'simple-lightbox'), 'priority' => 30),
'labels' => array ( 'title' => __('Labels', 'simple-lightbox'), 'priority' => 40),
),
'items' => array (
'enabled' => array('title' => __('Enable Lightbox Functionality', 'simple-lightbox'), 'default' => true, 'group' => array('activation', 10)),
'enabled_home' => array('title' => __('Enable on Home page', 'simple-lightbox'), 'default' => true, 'group' => array('activation', 20)),
'enabled_post' => array('title' => __('Enable on Single Posts', 'simple-lightbox'), 'default' => true, 'group' => array('activation', 30)),
'enabled_page' => array('title' => __('Enable on Pages', 'simple-lightbox'), 'default' => true, 'group' => array('activation', 40)),
'enabled_archive' => array('title' => __('Enable on Archive Pages (tags, categories, etc.)', 'simple-lightbox'), 'default' => true, 'group' => array('activation', 50)),
'enabled_widget' => array('title' => __('Enable for Widgets', 'simple-lightbox'), 'default' => false, 'group' => array('activation', 60)),
'group_links' => array('title' => __('Group items (for displaying as a slideshow)', 'simple-lightbox'), 'default' => true, 'group' => array('grouping', 10)),
'group_post' => array('title' => __('Group items by Post (e.g. on pages with multiple posts)', 'simple-lightbox'), 'default' => true, 'group' => array('grouping', 20)),
'group_gallery' => array('title' => __('Group gallery items separately', 'simple-lightbox'), 'default' => false, 'group' => array('grouping', 30)),
'group_widget' => array('title' => __('Group widget items separately', 'simple-lightbox'), 'default' => false, 'group' => array('grouping', 40)),
'ui_autofit' => array('title' => __('Resize lightbox to fit in window', 'simple-lightbox'), 'default' => true, 'group' => array('ui', 10), 'in_client' => true),
'ui_animate' => array('title' => __('Enable animations', 'simple-lightbox'), 'default' => true, 'group' => array('ui', 20), 'in_client' => true),
'slideshow_autostart' => array('title' => __('Start Slideshow Automatically', 'simple-lightbox'), 'default' => true, 'group' => array('ui', 30), 'in_client' => true),
'slideshow_duration' => array('title' => __('Slide Duration (Seconds)', 'simple-lightbox'), 'default' => '6', 'attr' => array('size' => 3, 'maxlength' => 3), 'group' => array('ui', 40), 'in_client' => true),
'group_loop' => array('title' => __('Loop through items', 'simple-lightbox'),'default' => true, 'group' => array('ui', 50), 'in_client' => true),
'ui_overlay_opacity' => array('title' => __('Overlay Opacity (0 - 1)', 'simple-lightbox'), 'default' => '0.8', 'attr' => array('size' => 3, 'maxlength' => 3), 'group' => array('ui', 60), 'in_client' => true),
'ui_title_default' => array('title' => __('Enable default title', 'simple-lightbox'), 'default' => false, 'group' => array('ui', 70), 'in_client' => true),
'txt_loading' => array('title' => __('Loading indicator', 'simple-lightbox'), 'default' => 'Loading', 'group' => array('labels', 20)),
'txt_close' => array('title' => __('Close button', 'simple-lightbox'), 'default' => 'Close', 'group' => array('labels', 10)),
'txt_nav_next' => array('title' => __('Next Item button', 'simple-lightbox'), 'default' => 'Next', 'group' => array('labels', 30)),
'txt_nav_prev' => array('title' => __('Previous Item button', 'simple-lightbox'), 'default' => 'Previous', 'group' => array('labels', 40)),
'txt_slideshow_start' => array('title' => __('Start Slideshow button', 'simple-lightbox'), 'default' => 'Start slideshow', 'group' => array('labels', 50)),
'txt_slideshow_stop' => array('title' => __('Stop Slideshow button', 'simple-lightbox'),'default' => 'Stop slideshow', 'group' => array('labels', 60)),
'txt_group_status' => array('title' => __('Slideshow status format', 'simple-lightbox'), 'default' => 'Item %current% of %total%', 'group' => array('labels', 70))
),
'legacy' => array (
'header_activation' => null,
'header_enabled' => null,
'header_strings' => null,
'header_ui' => null,
'activate_attachments' => null,
'validate_links' => null,
'enabled_compat' => null,
'enabled_single' => array('enabled_post', 'enabled_page'),
'enabled_caption' => null,
'enabled_desc' => null,
'ui_enabled_caption' => null,
'ui_caption_src' => null,
'ui_enabled_desc' => null,
'caption_src' => null,
'animate' => 'ui_animate',
'overlay_opacity' => 'ui_overlay_opacity',
'loop' => 'group_loop',
'autostart' => 'slideshow_autostart',
'duration' => 'slideshow_duration',
'txt_numDisplayPrefix' => null,
'txt_numDisplaySeparator' => null,
'txt_closeLink' => 'txt_link_close',
'txt_nextLink' => 'txt_link_next',
'txt_prevLink' => 'txt_link_prev',
'txt_startSlideshow' => 'txt_slideshow_start',
'txt_stopSlideshow' => 'txt_slideshow_stop',
'txt_loadingMsg' => 'txt_loading',
'txt_link_next' => 'txt_nav_next',
'txt_link_prev' => 'txt_nav_prev',
'txt_link_close' => 'txt_close',
)
);
parent::_options($opts);
}
/* Methods */
/*-** Admin **-*/
/**
* Add admin menus
* @uses this->admin->add_theme_page
*/
function admin_menus() {
//Build options page
$lbls_opts = array(
'menu' => __('Lightbox', 'simple-lightbox'),
'header' => __('Lightbox Settings', 'simple-lightbox'),
'plugin_action' => __('Settings', 'simple-lightbox')
);
$pg_opts = $this->admin->add_theme_page('options', $lbls_opts)
->require_form()
->add_content('options', 'Options', $this->options);
//Add Support information
$support = $this->util->get_plugin_info('SupportURI');
if ( !empty($support) ) {
$pg_opts->add_content('support', __('Feedback & Support', 'simple-lightbox'), $this->m('theme_page_callback_support'), 'secondary');
}
//Add Actions
$lbls_reset = array (
'title' => __('Reset', 'simple-lightbox'),
'confirm' => __('Are you sure you want to reset settings?', 'simple-lightbox'),
'success' => __('Settings have been reset', 'simple-lightbox'),
'failure' => __('Settings were not reset', 'simple-lightbox')
);
$this->admin->add_action('reset', $lbls_reset, $this->options);
}
/**
* Support information
*/
public function theme_page_callback_support() {
// Description
$desc = __("<p>Simple Lightbox thrives on your feedback!</p><p>Click the button below to <strong>get help</strong>, <strong>request a feature</strong>, or <strong>provide some feedback</strong>!</p>", 'simple-lightbox');
echo $desc;
// Link
$lnk_uri = $this->util->get_plugin_info('SupportURI');
$lnk_txt = __('Get Support & Provide Feedback', 'simple-lightbox');
echo $this->util->build_html_link($lnk_uri, $lnk_txt, array('target' => '_blank', 'class' => 'button'));
}
/**
* Filter support link text in plugin metadata
* @param string $text Original link text
* @return string Modified link text
*/
public function admin_plugin_row_meta_support($text) {
return "Feedback & Support";
}
/*-** Functionality **-*/
/**
* Checks whether lightbox is currently enabled/disabled
* @return bool TRUE if lightbox is currently enabled, FALSE otherwise
*/
function is_enabled() {
static $ret = null;
if ( is_null($ret) ) {
$ret = ( !is_admin() && $this->options->get_bool('enabled') && !is_feed() ) ? true : false;
if ( $ret ) {
$opt = '';
//Determine option to check
if ( is_home() ) {
$opt = 'home';
}
elseif ( is_singular() ) {
$opt = ( is_page() ) ? 'page' : 'post';
}
elseif ( is_archive() || is_search() ) {
$opt = 'archive';
}
//Check sub-option
if ( !empty($opt) && ( $opt = 'enabled_' . $opt ) && $this->options->has($opt) ) {
$ret = $this->options->get_bool($opt);
}
}
}
return $ret;
}
/**
* Activates galleries extracted from post
* @see get_post_galleries()
* @param array $galleries A list of galleries in post
* @return A list of galleries with links activated
*/
function activate_galleries($galleries) {
//Validate
if ( empty($galleries) ) {
return $galleries;
}
//Check galleries for HTML output
$gallery = reset($galleries);
if ( is_array($gallery) ) {
return $galleries;
}
//Activate galleries
$group = ( $this->options->get_bool('group_gallery') ) ? true : null;
foreach ( $galleries as $key => $val ) {
if ( !is_null($group) ) {
$group = 'gallery_' . $key;
}
//Activate links in gallery
$gallery = $this->process_links($val, $group);
//Save modified gallery
$galleries[$key] = $gallery;
}
return $galleries;
}
/**
* Scans post content for image links and activates them
*
* Lightbox will not be activated for feeds
* @param $content
* @return string Post content
*/
public function activate_links($content) {
// Filter content before processing links
$content = $this->util->apply_filters('pre_process_links', $content);
// Process links
$content = $this->process_links($content);
// Filter content after processing links
$content = $this->util->apply_filters('post_process_links', $content);
return $content;
}
/**
* Process links in content
* @global obj $wpdb DB instance
* @global obj $post Current post
* @param string $content Text containing links
* @param string (optional) $group Group to add links to (Default: none)
* @return string Content with processed links
*/
function process_links($content, $group = null) {
//Validate
if ( !is_string($content) || empty($content) || ( !!$this->widget_processing && !$this->options->get_bool('enabled_widget') ) ) {
return $content;
}
//Extract links
$links = $this->get_links($content, true);
//Do not process content without links
if ( empty($links) ) {
return $content;
}
//Process links
$protocol = array('http://', 'https://');
$uri_home = strtolower(home_url());
$domain = str_replace($protocol, '', $uri_home);
$qv_att = 'attachment_id';
//Setup group properties
$g_props = (object) array(
'enabled' => $this->options->get_bool('group_links'),
'attr' => 'group',
'base' => '',
'legacy_prefix' => 'lightbox[',
'legacy_suffix' => ']'
);
if ( $g_props->enabled ) {
$g_props->base = ( is_scalar($group) ) ? trim(strval($group)) : '';
}
//Initialize content handlers
if ( !( $this->handlers instanceof SLB_Content_Handlers ) ) {
$this->handlers = new SLB_Content_Handlers($this);
}
//Iterate through and activate supported links
$uri_proto = array('raw' => '', 'source' => '');
foreach ( $links as $link ) {
//Init vars
$pid = 0;
$link_new = $link;
$internal = false;
$q = null;
$uri = (object) $uri_proto;
$type = false;
$props_extra = array();
//Parse link attributes
$attrs = $this->util->parse_attribute_string($link_new, array('href' => ''));
//Get URI
$uri->raw = $uri->source = $attrs['href'];
//Stop processing invalid links
if ( !$this->validate_uri($uri->raw)
|| $this->has_attribute($attrs, 'active', false) //Previously-processed
) {
continue;
}
//Check if item links to internal media (attachment)
if ( 0 === strpos($uri->raw, '/') ) {
//Relative URIs are always internal
$internal = true;
$uri->source = $uri_home . $uri->raw;
} else {
//Absolute URI
$uri_dom = str_replace($protocol, '', strtolower($uri->raw));
if ( strpos($uri_dom, $domain) === 0 ) {
$internal = true;
}
unset($uri_dom);
}
//Get source URI (e.g. attachments)
if ( $internal && is_local_attachment($uri->source) ) {
$pid = url_to_postid($uri->source);
$src = wp_get_attachment_url($pid);
if ( !!$src ) {
$uri->source = $src;
$props_extra['id'] = $pid;
}
unset($src);
}
/* Determine content type */
//Check if URI has already been processed
if ( $this->media_item_cached($uri->source) ) {
$i = $this->get_cached_media_item($uri->source);
$type = $i->type;
} else {
//Get handler match
$hdl_result = $this->handlers->match($uri->source);
if ( !!$hdl_result->handler ) {
$type = $hdl_result->handler->get_id();
$props_extra = $hdl_result->props;
//Updated source URI
if ( isset($props_extra['uri']) ) {
$uri->source = $props_extra['uri'];
unset($props_extra['uri']);
}
}
}
//Stop processing if link type not valid
if ( !$type ) {
//Cache
$this->validated_uris[$uri->raw] = false;
continue;
}
//Set group (if enabled)
if ( $g_props->enabled ) {
$group = array();
//Get preset group attribute
$g = ( $this->has_attribute($attrs, $g_props->attr) ) ? $this->get_attribute($attrs, $g_props->attr) : '';
if ( is_string($g) && ($g = trim($g)) && !empty($g) ) {
$group[] = $g;
} elseif ( !empty($g_props->base) ) {
$group[] = $g_props->base;
}
$group = $this->util->apply_filters('get_group_id', $group);
//Default group
if ( empty($group) || !is_array($group) ) {
$group = $this->get_prefix();
} else {
$group = implode('_', $group);
}
//Set group attribute
$this->set_attribute($attrs, $g_props->attr, $group);
unset($g);
}
//Activate link
$this->set_attribute($attrs, 'active');
//Process internal links
if ( $internal ) {
//Mark as internal
$this->set_attribute($attrs, 'internal', $pid);
}
//Cache item attributes
$this->cache_media_item($uri, $type, $internal, $props_extra);
//Filter attributes
$attrs = $this->util->apply_filters('process_link_attributes', $attrs);
//Update link in content
$link_new = '<a ' . $this->util->build_attribute_string($attrs) . '>';
$content = str_replace($link, $link_new, $content);
}
//Handle widget content
if ( !!$this->widget_processing && 'the_content' == current_filter() ) {
$content = $this->exclude_wrap($content);
}
return $content;
}
/**
* Retrieve HTML links in content
* @param string $content Content to get links from
* @param bool (optional) $unique Remove duplicates from returned links (Default: FALSE)
* @return array Links in content
*/
function get_links($content, $unique = false) {
$rgx = "/\<a[^\>]+href=.*?\>/i";
$links = array();
preg_match_all($rgx, $content, $links);
$links = $links[0];
if ( $unique )
$links = array_unique($links);
return $links;
}
/**
* Validate URI
* Matches specified URI against internal & external regex patterns
* URI is **invalid** if it matches a regex
*
* @param string $uri URI to validate
* @return bool TRUE if URI is valid
*/
protected function validate_uri($uri) {
static $patterns = null;
//Previously-validated URI
if ( isset($this->validated_uris[$uri]) )
return $this->validated_uris[$uri];
$valid = true;
//Boilerplate validation
if ( empty($uri) //Empty
|| 0 === strpos($uri, '#') //Anchor
)
$valid = false;
//Regex matching
if ( $valid ) {
//Get patterns
if ( is_null($patterns) ) {
$patterns = $this->util->apply_filters('validate_uri_regex', array());
}
//Iterate through patterns until match found
foreach ( $patterns as $pattern ) {
if ( 1 === preg_match($pattern, $uri) ) {
$valid = false;
break;
}
}
}
//Cache
$this->validated_uris[$uri] = $valid;
return $valid;
}
/**
* Add URI validation regex pattern
* @param
*/
public function validate_uri_regex_default($patterns) {
$patterns[] = '@^https?://[^/]*(wikipedia|wikimedia)\.org/wiki/file:.*$@i';
return $patterns;
}
/* Client */
/**
* Checks if output should be loaded in current request
* @uses `is_enabled()`
* @uses `has_cached_media_items()`
* @return bool TRUE if output is being loaded into client
*/
public function is_request_valid() {
return ( $this->is_enabled() && $this->has_cached_media_items() ) ? true : false;
}
/**
* Sets options/settings to initialize lightbox functionality on page load
* @return void
*/
function client_init($client_script) {
//Get options
$options = $this->options->build_client_output();
//Load UI Strings
if ( ($labels = $this->build_labels()) && !empty($labels) ) {
$options['ui_labels'] = $labels;
}
//Build client output
$client_script[] = $this->util->call_client_method('View.init', $options);
return $client_script;
}
/**
* Output code in footer
* > Media attachment URLs
* @uses `_wp_attached_file` to match attachment ID to URI
* @uses `_wp_attachment_metadata` to retrieve attachment metadata
*/
function client_footer() {
if ( !$this->has_cached_media_items() )
return false;
//Set up hooks
add_action('wp_print_footer_scripts', $this->m('client_footer_script'));
//Build client output
$this->util->do_action('footer');
}
/**
* Output client footer scripts
*/
function client_footer_script() {
$client_script = $this->util->apply_filters('footer_script', array());
if ( !empty($client_script) ) {
echo $this->util->build_script_element($client_script, 'footer', true, true);
}
}
/**
* Add media information to client output
*
* @param array $commands Client script commands
* @return array Modified script commands
*/
function client_script_media($client_script) {
/* Load cached media */
global $wpdb;
$this->media_items = array();
$props = array('id', 'type', 'description', 'title', 'source', 'caption');
$props = (object) array_combine($props, $props);
$props_map = array('description' => 'post_content', 'title' => 'post_title', 'caption' => 'post_excerpt');
//Separate media into buckets by type
$m_internals = array();
$type = $id = null;
$m_items = $this->media_items = $this->get_cached_media_items();
foreach ( $m_items as $uri => $p ) {
//Set aside internal links for additional processing
if ( $p->internal && !isset($m_internals[$uri]) ) {
$m_internals[$uri] =& $m_items[$uri];
}
}
unset($uri, $p);
//Process internal links
if ( !empty($m_internals) ) {
$uris_base = array();
$uri_prefix = wp_upload_dir();
$uri_prefix = $this->util->normalize_path($uri_prefix['baseurl'], true);
foreach ( $m_internals as $uri => $p ) {
//Prepare internal links
if ( !$p->id && strpos($p->source, $uri_prefix) === 0 ) {
$uris_base[str_replace($uri_prefix, '', $p->source)] = $uri;
}
}
unset($uri, $p);
//Retrieve attachment IDs
$uris_flat = "('" . implode("','", array_keys($uris_base)) . "')";
$q = $wpdb->prepare("SELECT post_id, meta_value FROM $wpdb->postmeta WHERE `meta_key` = %s AND LOWER(`meta_value`) IN $uris_flat LIMIT %d", '_wp_attached_file', count($uris_base));
$pids = $wpdb->get_results($q);
//Match IDs to URIs
if ( $pids ) {
foreach ( $pids as $pd ) {
$file =& $pd->meta_value;
if ( isset($uris_base[$file]) ) {
$m_internals[ $uris_base[$file] ]->{$props->id} = absint($pd->post_id);
}
}
}
//Destroy worker vars
unset($uris_base, $uris_flat, $q, $pids, $pd, $file);
}
//Process items with attachment IDs
$pids = array();
foreach ( $m_items as $uri => $p ) {
//Add post ID to query
if ( !!$p->id ) {
//Create array for ID (support multiple URIs per ID)
if ( !isset($pids[$p->id]) ) {
$pids[$p->id] = array();
}
//Add URI to ID
$pids[$p->id][] = $uri;
}
}
unset($uri, $p);
//Retrieve attachment properties
if ( !empty($pids) ) {
$pids_flat = array_keys($pids);
//Retrieve attachment post data
$atts = get_posts(array('post_type' => 'attachment', 'include' => $pids_flat));
//Process attachments
if ( $atts ) {
//Retrieve attachment metadata
$pids_flat = "('" . implode("','", $pids_flat) . "')";
$atts_meta = $wpdb->get_results($wpdb->prepare("SELECT `post_id`,`meta_value` FROM $wpdb->postmeta WHERE `post_id` IN $pids_flat AND `meta_key` = %s LIMIT %d", '_wp_attachment_metadata', count($atts)));
//Restructure metadata array by post ID
if ( $atts_meta ) {
$meta = array();
foreach ( $atts_meta as $att_meta ) {
$meta[$att_meta->post_id] = $att_meta->meta_value;
}
$atts_meta = $meta;
unset($meta);
} else {
$atts_meta = array();
}
$props_size = array('file', 'width', 'height');
$props_exclude = array('hwstring_small');
foreach ( $atts as $att ) {
//Set post data
$m = array();
//Remap post data to properties
foreach ( $props_map as $prop_key => $prop_source ) {
$m[$props->{$prop_key}] = $att->{$prop_source};
}
unset($prop_key, $prop_source);
//Add metadata
if ( isset($atts_meta[$att->ID]) && ($a = unserialize($atts_meta[$att->ID])) && is_array($a) ) {
//Move original size into `sizes` array
foreach ( $props_size as $d ) {
if ( !isset($a[$d]) ) {
continue;
}
$a['sizes']['original'][$d] = $a[$d];
unset($a[$d]);
}
//Strip extraneous metadata
foreach ( $props_exclude as $d ) {
if ( isset($a[$d]) ) {
unset($a[$d]);
}
}
//Merge post data & meta data
$m = array_merge($a, $m);
//Destroy worker vars
unset($a, $d);
}
//Save attachment data (post & meta) to original object(s)
if ( isset($pids[$att->ID]) ) {
foreach ( $pids[$att->ID] as $uri ) {
$this->media_items[$uri] = array_merge( (array) $m_items[$uri], $m);
}
}
}
}
unset($atts, $atts_meta, $m, $a, $uri, $pids, $pids_flat);
}
// Filter media item properties
foreach ( $this->media_items as $key => $props ) {
$this->media_items[$key] = $this->util->apply_filters('media_item_properties', (object) $props);
}
//Expand URI variants
foreach ( $m_items as $uri => $p ) {
if ( empty($p->_entries) ) {
continue;
}
foreach ( $p->_entries as $uri_variant ) {
if ( isset($this->media_items[$uri_variant]) ) {
continue;
}
$this->media_items[$uri_variant] = array('_parent' => $uri);
}
}
unset($uri, $p, $uri_variant);
//Build client output
$obj = 'View.assets';
$client_script[] = $this->util->extend_client_object($obj, $this->media_items);
return $client_script;
}
/*-** Media **-*/
/**
* Cache media properties for later processing
* @param object $uri URI to cache
* Members
* > raw: Raw Link URI
* > source: Source URI (e.g. for attachment URIs)
* @param string $type Media type (image, attachment, etc.)
* @param bool $internal TRUE if media is internal (e.g. attachment)
* @param array $props (optional) Properties to store for item (Default: NULL)
*/
private function cache_media_item($uri, $type, $internal, $props = null) {
//Validate
if ( !is_object($uri) || !is_string($type) ) {
return false;
}
if ( !$this->media_item_cached($uri->source) ) {
//Set properties
$i = array('id' => null, '_entries' => array());
if ( is_array($props) && !empty($props) ) {
$i = array_merge($i, $props);
}
$i = array_merge($i, array('type' => $type, 'source' => $uri->source, 'internal' => $internal));
//Cache media item
$this->media_items_raw[$uri->source] = (object) $i;
}
//Add URI variants
if ( $uri->raw != $uri->source && !in_array($uri->raw, $this->media_items_raw[$uri->source]->_entries) ) {
$this->media_items_raw[$uri->source]->_entries[] = $uri->raw;
}
}
/**
* Checks if media item has already been cached
* @param string $uri URI of media item
* @return boolean Whether media item has been cached
*/
private function media_item_cached($uri) {
return ( is_string($uri) && isset($this->media_items_raw[$uri]) ) ? true : false;
}
/**
* Retrieve cached media item
* @param string $uri Media item URI
* @return object|null Media item properties (NULL if not set)
*/
private function get_cached_media_item($uri) {
return ( $this->media_item_cached($uri) ) ? $this->media_items_raw[$uri] : null;
}
/**
* Retrieve cached media items
* @return array Cached media items
*/
private function &get_cached_media_items() {
return $this->media_items_raw;
}
/**
* Check if media items have been cached
* @return boolean
*/
private function has_cached_media_items() {
return ( empty($this->media_items_raw) ) ? false : true;
}
/*-** Exclusion **-*/
/**
* Retrieve exclude object
* Initialize object properties if necessary
* @return object Exclude properties
*/
private function get_exclude() {
// Initialize exclude data
if ( !is_object($this->exclude) ) {
$this->exclude = (object) array (
'tags' => $this->get_exclude_tags(),
'ph' => $this->get_exclude_placeholder(),
'group_default' => 'default',
'cache' => array(),
);
}
return $this->exclude;
}
/**
* Get exclusion tags (open/close)
* Example: open => [slb_exclude], close => [/slb_exclude]
*
* @return object Exclusion tags
*/
private function get_exclude_tags() {
static $tags = null;
if ( null == $tags ) {
$base = $this->add_prefix('exclude');
$tags = (object) array (
'base' => $base,
'open' => $this->util->add_wrapper($base),
'close' => $this->util->add_wrapper($base, '[/', ']')