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<?php
/**
* Elgg default_widgets plugin.
*
* @package DefaultWidgets
*
* Code based on the work of:
* @link http://www.tastyseed.com
* @link http://www.chadsowald.com
* @links http://www.somosmas.org
*
*/
global $CONFIG;
/**
* Default widgets initialisation
*
* These parameters are required for the event API, but we won't use them:
*
* @param unknown_type $event
* @param unknown_type $object_type
* @param unknown_type $object
*/
function defaultwidgets_init() {
// register create user event hook
register_elgg_event_handler ( 'create', 'user', 'defaultwidgets_newusers' );
// set the widget access to the default access on validation if this is not an admin-created user
if (!isadminloggedin()) {
elgg_register_event_handler('validate', 'user', 'defaultwidgets_reset_access');
}
// @todo These submenu pages should be DRYed up
elgg_add_admin_submenu_item('default_profile_widgets', elgg_echo('defaultwidgets:menu:profile'), 'appearance');
elgg_add_admin_submenu_item('default_dashboard_widgets', elgg_echo('defaultwidgets:menu:dashboard'), 'appearance');
}
/**
* Overrides default permissions for the default widgets context
*
*/
function defaultwidgets_can_edit($hook_name, $entity_type, $return_value, $parameters) {
global $defaultwidget_access;
if ($defaultwidget_access) {
return true;
}
return $return_value;
}
/**
* Override the canEditMetadata function to return true for messages
*
*/
function defaultwidgets_can_edit_metadata($hook_name, $entity_type, $return_value, $parameters) {
global $defaultwidget_access;
if ($defaultwidget_access) {
return true;
}
return $return_value;
}
/**
* Override the canEdit function to return true for messages within a particular context.
*
*/
function defaultwidgets_can_edit_container($hook_name, $entity_type, $return_value, $parameters) {
global $defaultwidget_access;
if ($defaultwidget_access) {
return true;
}
return $return_value;
}
/**
* Extends the create user event to add admin defined widgets to the dashboard/profile context
*/
function defaultwidgets_newusers($event, $object_type, $object) {
// turn on permissions override
global $defaultwidget_access, $CONFIG;
$defaultwidget_access = true;
// get the new user guid
$guid = $object->guid;
if (isadminloggedin()) {
// this is an admin-created user
// no permissions problems, so set proper access now
// use system default access (not the admin's default access!, because that could be a personal access level)
$widget_access = $CONFIG->default_access;
} else {
// this is a regular registration
// set widget access to public for now and reset it properly during the validate event
// to avoid Elgg permissions problems
$widget_access = ACCESS_PUBLIC;
}
// check if it's set
if (! empty ( $guid )) {
// get the user entity
if ($user = get_entity ( $guid )) {
// can this user edit
if ($user->canEdit ()) {
// each of the contexts to add widgets for
$contexts = array ('profile', 'dashboard' );
// get the entities for the module
$entities = elgg_get_entities (array('type' => 'object', 'subtype' => 'moddefaultwidgets', 'limit' => 9999));
// check if the entity exists
if (isset ( $entities [0] )) {
// get the widgets for the context
$entity = $entities [0];
foreach ( $contexts as $context ) {
$current_widgets = $entity->$context;
list ( $left, $middle, $right ) = split ( '%%', $current_widgets );
// split columns into seperate widgets
$area1widgets = split ( '::', $left );
$area2widgets = split ( '::', $middle );
$area3widgets = split ( '::', $right );
// clear out variables if no widgets are available
if ($area1widgets [0] == "")
$area1widgets = false;
if ($area2widgets [0] == "")
$area2widgets = false;
if ($area3widgets [0] == "")
$area3widgets = false;
// generate left column widgets for a new user
if ($area1widgets) {
foreach ( $area1widgets as $i => $widget ) {
add_widget ( $guid, $widget, $context, ($i + 1), 1, $widget_access );
}
}
// generate middle column widgets for a new user
if ($area2widgets) {
foreach ( $area2widgets as $i => $widget ) {
add_widget ( $guid, $widget, $context, ($i + 1), 2, $widget_access );
}
}
// generate right column widgets for a new user
if ($area3widgets) {
foreach ( $area3widgets as $i => $widget ) {
add_widget ( $guid, $widget, $context, ($i + 1), 3, $widget_access );
}
}
}
}
}
}
}
// turn off permissions override
$defaultwidget_access = false;
}
function defaultwidgets_reset_access($event, $object_type, $object) {
global $defaultwidget_access;
// turn on permissions override
$defaultwidget_access = true;
// the widgets are disabled, so turn on the ability to see disabled entities
$access_status = access_get_show_hidden_status();
access_show_hidden_entities(true);
$widgets = elgg_get_entities(array('type' => 'object', 'subtype' => 'widget', 'owner_guid' => $object->getGUID()));
if ($widgets) {
foreach($widgets as $widget) {
$widget->access_id = get_default_access();
$widget->save();
}
}
access_show_hidden_entities($access_status);
// turn off permissions override
$defaultwidget_access = false;
return true;
}
// Make sure the status initialisation function is called on initialisation
elgg_register_event_handler('init', 'system', 'defaultwidgets_init');
elgg_register_plugin_hook_handler('permissions_check', 'user', 'defaultwidgets_can_edit');
elgg_register_plugin_hook_handler('permissions_check', 'object', 'defaultwidgets_can_edit');
elgg_register_plugin_hook_handler('container_permissions_check', 'user', 'defaultwidgets_can_edit_container');
elgg_register_action("defaultwidgets/update", $CONFIG->pluginspath . "defaultwidgets/actions/update.php");
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