diff options
Diffstat (limited to 'engine/lib/widgets.php')
| -rw-r--r-- | engine/lib/widgets.php | 165 |
1 files changed, 154 insertions, 11 deletions
diff --git a/engine/lib/widgets.php b/engine/lib/widgets.php index 8310e83cc..699462a1b 100644 --- a/engine/lib/widgets.php +++ b/engine/lib/widgets.php @@ -16,7 +16,7 @@ * * @param int $user_guid The owner user GUID * @param string $context The context (profile, dashboard, etc) - * + * * @return array An 2D array of ElggWidget objects * @since 1.8.0 */ @@ -26,7 +26,8 @@ function elgg_get_widgets($user_guid, $context) { 'subtype' => 'widget', 'owner_guid' => $user_guid, 'private_setting_name' => 'context', - 'private_setting_value' => $context + 'private_setting_value' => $context, + 'limit' => 0 ); $widgets = elgg_get_entities_from_private_settings($options); if (!$widgets) { @@ -51,10 +52,11 @@ function elgg_get_widgets($user_guid, $context) { /** * Create a new widget instance * - * @param int $entity_guid GUID of entity that owns this widget - * @param string $handler The handler for this widget - * @param int $access_id If not specified, it is set to the default access level - * + * @param int $owner_guid GUID of entity that owns this widget + * @param string $handler The handler for this widget + * @param string $context The context for this widget + * @param int $access_id If not specified, it is set to the default access level + * * @return int|false Widget GUID or false on failure * @since 1.8.0 */ @@ -134,7 +136,7 @@ function elgg_can_edit_widget_layout($context, $user_guid = 0) { * widget is allowed (default: 'all') * @param bool $multiple Whether or not multiple instances of this widget * are allowed in a single layout (default: false) - * + * * @return bool * @since 1.8.0 */ @@ -168,7 +170,7 @@ function elgg_register_widget_type($handler, $name, $description, $context = "al * Remove a widget type * * @param string $handler The identifier for the widget - * + * * @return void * @since 1.8.0 */ @@ -192,7 +194,7 @@ function elgg_unregister_widget_type($handler) { * Has a widget type with the specified handler been registered * * @param string $handler The widget handler identifying string - * + * * @return bool Whether or not that widget type exists * @since 1.8.0 */ @@ -217,7 +219,7 @@ function elgg_is_widget_type($handler) { * * @param string $context The widget context or empty string for current context * @param bool $exact Only return widgets registered for this context (false) - * + * * @return array * @since 1.8.0 */ @@ -255,6 +257,7 @@ function elgg_get_widget_types($context = "", $exact = false) { * Regsiter entity of object, widget as ElggWidget objects * * @return void + * @access private */ function elgg_widget_run_once() { add_subtype("object", "widget", "ElggWidget"); @@ -264,14 +267,154 @@ function elgg_widget_run_once() { * Function to initialize widgets functionality * * @return void + * @access private */ function elgg_widgets_init() { elgg_register_action('widgets/save'); elgg_register_action('widgets/add'); elgg_register_action('widgets/move'); elgg_register_action('widgets/delete'); + elgg_register_action('widgets/upgrade', '', 'admin'); run_function_once("elgg_widget_run_once"); } -elgg_register_event_handler('init', 'system', 'elgg_widgets_init');
\ No newline at end of file +/** + * Gets a list of events to create default widgets for and + * register menu items for default widgets with the admin section. + * + * A plugin that wants to register a new context for default widgets should + * register for the plugin hook 'get_list', 'default_widgets'. The handler + * can register the new type of default widgets by adding an associate array to + * the return value array like this: + * array( + * 'name' => elgg_echo('profile'), + * 'widget_context' => 'profile', + * 'widget_columns' => 3, + * + * 'event' => 'create', + * 'entity_type' => 'user', + * 'entity_subtype' => ELGG_ENTITIES_ANY_VALUE, + * ); + * + * The first set of keys define information about the new type of default + * widgets and the second set determine what event triggers the creation of the + * new widgets. + * + * @return void + * @access private + */ +function elgg_default_widgets_init() { + global $CONFIG; + $default_widgets = elgg_trigger_plugin_hook('get_list', 'default_widgets', null, array()); + + $CONFIG->default_widget_info = $default_widgets; + + if ($default_widgets) { + elgg_register_admin_menu_item('configure', 'default_widgets', 'appearance'); + + // override permissions for creating widget on logged out / just created entities + elgg_register_plugin_hook_handler('container_permissions_check', 'object', 'elgg_default_widgets_permissions_override'); + + // only register the callback once per event + $events = array(); + foreach ($default_widgets as $info) { + $events[$info['event'] . ',' . $info['entity_type']] = $info; + } + foreach ($events as $info) { + elgg_register_event_handler($info['event'], $info['entity_type'], 'elgg_create_default_widgets'); + } + } +} + +/** + * Creates default widgets + * + * This plugin hook handler is registered for events based on what kinds of + * default widgets have been registered. See elgg_default_widgets_init() for + * information on registering new default widget contexts. + * + * @param string $event The event + * @param string $type The type of object + * @param ElggEntity $entity The entity being created + * @return void + * @access private + */ +function elgg_create_default_widgets($event, $type, $entity) { + $default_widget_info = elgg_get_config('default_widget_info'); + + if (!$default_widget_info || !$entity) { + return; + } + + $type = $entity->getType(); + $subtype = $entity->getSubtype(); + + // event is already guaranteed by the hook registration. + // need to check subtype and type. + foreach ($default_widget_info as $info) { + if ($info['entity_type'] == $type) { + if ($info['entity_subtype'] == ELGG_ENTITIES_ANY_VALUE || $info['entity_subtype'] == $subtype) { + + // need to be able to access everything + $old_ia = elgg_set_ignore_access(true); + elgg_push_context('create_default_widgets'); + + // pull in by widget context with widget owners as the site + // not using elgg_get_widgets() because it sorts by columns and we don't care right now. + $options = array( + 'type' => 'object', + 'subtype' => 'widget', + 'owner_guid' => elgg_get_site_entity()->guid, + 'private_setting_name' => 'context', + 'private_setting_value' => $info['widget_context'], + 'limit' => 0 + ); + + $widgets = elgg_get_entities_from_private_settings($options); + /* @var ElggWidget[] $widgets */ + + foreach ($widgets as $widget) { + // change the container and owner + $new_widget = clone $widget; + $new_widget->container_guid = $entity->guid; + $new_widget->owner_guid = $entity->guid; + + // pull in settings + $settings = get_all_private_settings($widget->guid); + + foreach ($settings as $name => $value) { + $new_widget->$name = $value; + } + + $new_widget->save(); + } + + elgg_set_ignore_access($old_ia); + elgg_pop_context(); + } + } + } +} + +/** + * Overrides permissions checks when creating widgets for logged out users. + * + * @param string $hook The permissions hook. + * @param string $type The type of entity being created. + * @param string $return Value + * @param mixed $params Params + * @return true|null + * @access private + */ +function elgg_default_widgets_permissions_override($hook, $type, $return, $params) { + if ($type == 'object' && $params['subtype'] == 'widget') { + return elgg_in_context('create_default_widgets') ? true : null; + } + + return null; +} + +elgg_register_event_handler('init', 'system', 'elgg_widgets_init'); +// register default widget hooks from plugins +elgg_register_event_handler('ready', 'system', 'elgg_default_widgets_init'); |