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<?php
/**
* Elgg Video Plugin
* This plugin allows users to create a library of videos
*
* @package Elgg
* @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU Public License version 2
* @author Prateek Choudhary <synapticfield@gmail.com>
* @copyright Prateek Choudhary
*/
elgg_register_event_handler('init', 'system', 'videolist_init');
function videolist_init() {
elgg_register_library('elgg:videolist', elgg_get_plugins_path() . 'videolist/lib/videolist.php');
// add a site navigation item
$item = new ElggMenuItem('videolist', elgg_echo('videolist'), 'videolist/all');
elgg_register_menu_item('site', $item);
// Extend system CSS with our own styles
elgg_extend_view('css/elgg','videolist/css');
// Register a page handler, so we can have nice URLs
elgg_register_page_handler('videolist', 'videolist_page_handler');
// Language short codes must be of the form "videolist:key"
// where key is the array key below
elgg_set_config('videolist', array(
'video_url' => 'url',
'title' => 'text',
'description' => 'longtext',
'tags' => 'tags',
'access_id' => 'access',
));
// extend group main page
elgg_extend_view('groups/tool_latest', 'videolist/group_module');
//add a widget
elgg_register_widget_type('videolist', elgg_echo('videolist'), elgg_echo('videolist:widget:description'));
if (is_callable('register_notification_object')) {
register_notification_object('object', 'videolist_item', elgg_echo('videolist:new'));
}
// Register entity type for search
elgg_register_entity_type('object', 'videolist_item');
// add a file link to owner blocks
elgg_register_plugin_hook_handler('register', 'menu:owner_block', 'videolist_owner_block_menu');
elgg_register_event_handler('annotate','all','videolist_object_notifications');
elgg_register_plugin_hook_handler('object:notifications','object','videolist_object_notifications_intercept');
//register entity url handler
elgg_register_entity_url_handler('object', 'videolist_item', 'videolist_url');
elgg_register_plugin_hook_handler('entity:icon:url', 'object', 'videolist_icon_url_override');
// register for embed
elgg_register_plugin_hook_handler('embed_get_sections', 'all', 'videolist_embed_get_sections');
elgg_register_plugin_hook_handler('embed_get_items', 'videolist', 'videolist_embed_get_items');
// handle URLs without scheme
elgg_register_plugin_hook_handler('videolist:preprocess', 'url', 'videolist_preprocess_url');
// Register actions
$actions_path = elgg_get_plugins_path() . "videolist/actions/videolist";
elgg_register_action("videolist/add", "$actions_path/add.php");
elgg_register_action("videolist/edit", "$actions_path/edit.php");
elgg_register_action("videolist/delete", "$actions_path/delete.php");
elgg_register_event_handler('upgrade', 'system', 'videolist_run_upgrades');
}
/**
* Dispatches blog pages.
* URLs take the form of
* All videos: videolist/all
* User's videos: videolist/owner/<username>
* Friends' videos: videolist/friends/<username>
* Video watch: videolist/watch/<guid>/<title>
* Video browse: videolist/browse
* New video: videolist/add/<guid>
* Edit video: videolist/edit/<guid>
* Group videos: videolist/group/<guid>/all
*
* Title is ignored
*
* @param array $page
* @return NULL
*/
function videolist_page_handler($page) {
if (!isset($page[0])) {
$page[0] = 'all';
}
$videolist_dir = elgg_get_plugins_path() . 'videolist/pages/videolist';
$page_type = $page[0];
switch ($page_type) {
case 'owner':
include "$videolist_dir/owner.php";
break;
case 'friends':
include "$videolist_dir/friends.php";
break;
case 'watch':
set_input('guid', $page[1]);
include "$videolist_dir/watch.php";
break;
case 'add':
include "$videolist_dir/add.php";
break;
case 'edit':
set_input('guid', $page[1]);
include "$videolist_dir/edit.php";
break;
case 'group':
include "$videolist_dir/owner.php";
break;
case 'all':
default:
include "$videolist_dir/all.php";
break;
}
return true;
}
/**
* Add a menu item to the user ownerblock
*
* @param string $hook
* @param string $type
* @param array $return
* @param array $params
* @return array
*/
function videolist_owner_block_menu($hook, $type, $return, $params) {
if (elgg_instanceof($params['entity'], 'user')) {
$url = "videolist/owner/{$params['entity']->username}";
$item = new ElggMenuItem('videolist', elgg_echo('videolist'), $url);
$return[] = $item;
} else {
if ($params['entity']->videolist_enable != "no") {
$url = "videolist/group/{$params['entity']->guid}/all";
$item = new ElggMenuItem('videolist', elgg_echo('videolist:group'), $url);
$return[] = $item;
}
}
return $return;
}
/**
* @param ElggObject $videolist_item
* @return string
*/
function videolist_url($videolist_item) {
$guid = $videolist_item->guid;
$title = elgg_get_friendly_title($videolist_item->title);
return elgg_get_site_url() . "videolist/watch/$guid/$title";
}
/**
* Event handler for videolist
*
* @param string $event
* @param string $object_type
* @param ElggObject $object
*/
function videolist_object_notifications($event, $object_type, $object) {
static $flag;
if (!isset($flag)) {
$flag = 0;
}
if (is_callable('object_notifications')) {
if ($object instanceof ElggObject) {
if ($object->getSubtype() == 'videolist_item') {
if ($flag == 0) {
$flag = 1;
object_notifications($event, $object_type, $object);
}
}
}
}
}
/**
* Intercepts the notification on an event of new video being created and prevents a notification from going out
* (because one will be sent on the annotation)
*
* @param string $hook
* @param string $entity_type
* @param array $returnvalue
* @param array $params
* @return bool
*/
function videolist_object_notifications_intercept($hook, $entity_type, $returnvalue, $params) {
if (isset($params)) {
if ($params['event'] == 'create' && $params['object'] instanceof ElggObject) {
if ($params['object']->getSubtype() == 'videolist_item') {
return true;
}
}
}
return null;
}
/**
* Register videolist as an embed type.
*
* @param string $hook
* @param string $type
* @param array $value
* @param array $params
* @return array
*/
function videolist_embed_get_sections($hook, $type, $value, $params) {
$value['videolist'] = array(
'name' => elgg_echo('videolist'),
'layout' => 'list',
'icon_size' => 'medium',
);
return $value;
}
/**
* Return a list of videos for embedding
*
* @param string $hook
* @param string $type
* @param array $value
* @param array $params
* @return array
*/
function videolist_embed_get_items($hook, $type, $value, $params) {
$options = array(
'owner_guid' => elgg_get_logged_in_user_guid(),
'type_subtype_pair' => array('object' => 'videolist_item'),
'count' => TRUE
);
$count = elgg_get_entities($options);
$value['count'] += $count;
unset($options['count']);
$options['offset'] = $params['offset'];
$options['limit'] = $params['limit'];
$items = elgg_get_entities($options);
$value['items'] = array_merge($items, $value['items']);
return $value;
}
/**
* Override the default entity icon for videoslist items
*
* @param string $hook
* @param string $type
* @param string $returnvalue
* @param array $params
* @return string Relative URL
*/
function videolist_icon_url_override($hook, $type, $returnvalue, $params) {
$videolist_item = $params['entity'];
/* @var ElggObject $videolist_item */
$size = $params['size'];
if($videolist_item->getSubtype() != 'videolist_item'){
return $returnvalue;
}
// tiny thumbnails are too small to be useful, so give a generic video icon
if ($size != 'tiny' && isset($videolist_item->thumbnail)) {
return elgg_get_site_url() . "mod/videolist/thumbnail.php?guid=" . $videolist_item->guid;
}
if (in_array($size, array('tiny', 'small', 'medium'))){
return "mod/videolist/graphics/videolist_icon_{$size}.png";
}
}
/**
* Prepend HTTP scheme if missing
* @param string $hook
* @param string $type
* @param string $returnvalue
* @param array $params
* @return string
*/
function videolist_preprocess_url($hook, $type, $returnvalue, $params) {
// undo get_input (htmlawed's) HTML-encoding
$returnvalue = str_replace('&', '&', $returnvalue);
$parsed = parse_url($returnvalue);
if (empty($parsed['host']) && ! empty($parsed['path']) && $parsed['path'][0] !== '/') {
// user probably forgot scheme
$returnvalue = 'http://' . $returnvalue;
}
return $returnvalue;
}
/**
* Process upgrades for the videolist plugin
*/
function videolist_run_upgrades() {
$path = elgg_get_plugins_path() . 'videolist/upgrades/';
$files = elgg_get_upgrade_files($path);
foreach ($files as $file) {
include "$path{$file}";
}
}
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