PHP elgg_create_widget函数代码示例

 /**
  * Plugin activation
  */
 static function activate()
 {
     //add widget on plugin activation if not added yet
     if (!self::isAdded()) {
         self::init();
         $guid = elgg_create_widget(elgg_get_logged_in_user_guid(), 'version', 'admin');
         if ($guid) {
             $widget = get_entity($guid);
             $widget->move(1, 0);
         }
     }
 }

$ia = elgg_set_ignore_access(true);
foreach (array('profile', 'dashboard') as $context) {
    if (isset($object->{$context})) {
        elgg_push_context($context);
        elgg_push_context('default_widgets');
        elgg_push_context('widgets');
        // deserialize the widget information
        list($left, $middle, $right) = split('%%', $object->{$context});
        $left_widgets = split('::', $left);
        $middle_widgets = split('::', $middle);
        $right_widgets = split('::', $right);
        // 1st column is right column in default theme
        $widgets = array(1 => array_reverse($right_widgets), 2 => array_reverse($middle_widgets), 3 => array_reverse($left_widgets));
        foreach ($widgets as $column => $column_widgets) {
            foreach ($column_widgets as $handler) {
                $guid = elgg_create_widget($site->getGUID(), $handler, $context);
                if ($guid) {
                    $widget = get_entity($guid);
                    $widget->move($column, 0);
                }
            }
        }
        elgg_pop_context();
        elgg_pop_context();
        elgg_pop_context();
    }
}
elgg_set_ignore_access($ia);
$object->delete();
system_message(elgg_echo('upgrade:core'));
forward(REFERER);

/**
 * Adds default admin widgets to the admin dashboard.
 *
 * @param string $event
 * @param string $type
 * @param ElggUser $user
 *
 * @return null|true
 * @access private
 */
function elgg_add_admin_widgets($event, $type, $user)
{
    elgg_set_ignore_access(true);
    // check if the user already has widgets
    if (elgg_get_widgets($user->getGUID(), 'admin')) {
        return true;
    }
    // In the form column => array of handlers in order, top to bottom
    $adminWidgets = array(1 => array('control_panel', 'admin_welcome'), 2 => array('online_users', 'new_users', 'content_stats'));
    foreach ($adminWidgets as $column => $handlers) {
        foreach ($handlers as $position => $handler) {
            $guid = elgg_create_widget($user->getGUID(), $handler, 'admin');
            if ($guid) {
                $widget = get_entity($guid);
                /* @var ElggWidget $widget */
                $widget->move($column, $position);
            }
        }
    }
    elgg_set_ignore_access(false);
}

$page_owner_guid = (int) get_input('page_owner_guid');
$handler = get_input('handler');
$context = get_input('context');
$show_access = (bool) get_input('show_access', true);
$column = (int) get_input('column', 1);
$default_widgets = (int) get_input('default_widgets', 0);
elgg_set_page_owner_guid($page_owner_guid);
$page_owner = elgg_get_page_owner_entity();
if (!$page_owner) {
    return elgg_error_response(elgg_echo('widgets:add:failure'));
}
if (!elgg_can_edit_widget_layout($context)) {
    // logged in user must be able to edit the layout to add a widget
    return elgg_error_response(elgg_echo('widgets:add:failure'));
}
$guid = elgg_create_widget($page_owner->getGUID(), $handler, $context);
if (!$guid) {
    return elgg_error_response(elgg_echo('widgets:add:failure'));
}
$widget = get_entity($guid);
// position the widget
$widget->move($column, 0);
$context_stack = [];
if ($default_widgets) {
    $context_stack[] = 'default_widgets';
}
$context_stack[] = 'widgets';
if ($context) {
    $context_stack[] = $context;
}
foreach ($context_stack as $ctx) {

/**
 * Sets the widget manager tool option. This is needed because in some situation the tool option is not available.
 *
 * And add/remove tool enabled widgets
 *
 * @param string $event       name of the system event
 * @param string $object_type type of the event
 * @param mixed  $object      object related to the event
 *
 * @return void
 */
function widget_manager_update_group_event_handler($event, $object_type, $object)
{
    if (!$object instanceof ElggGroup) {
        return;
    }
    $plugin_settings = elgg_get_plugin_setting("group_enable", "widget_manager");
    // make widget management mandatory
    if ($plugin_settings == "forced") {
        $object->widget_manager_enable = "yes";
    }
    // add/remove tool enabled widgets
    if ($plugin_settings == "forced" || $plugin_settings == "yes" && $object->widget_manager_enable == "yes") {
        $result = array("enable" => array(), "disable" => array());
        $params = array("entity" => $object);
        $result = elgg_trigger_plugin_hook("group_tool_widgets", "widget_manager", $params, $result);
        if (empty($result) || !is_array($result)) {
            return;
        }
        $current_widgets = elgg_get_widgets($object->getGUID(), "groups");
        // disable widgets
        $disable_widget_handlers = elgg_extract("disable", $result);
        if (!empty($disable_widget_handlers) && is_array($disable_widget_handlers)) {
            if (!empty($current_widgets) && is_array($current_widgets)) {
                foreach ($current_widgets as $column => $widgets) {
                    if (!empty($widgets) && is_array($widgets)) {
                        foreach ($widgets as $order => $widget) {
                            // check if a widget should be removed
                            if (in_array($widget->handler, $disable_widget_handlers)) {
                                // yes, so remove the widget
                                $widget->delete();
                                unset($current_widgets[$column][$order]);
                            }
                        }
                    }
                }
            }
        }
        // enable widgets
        $column_counts = array();
        $enable_widget_handlers = elgg_extract("enable", $result);
        if (!empty($enable_widget_handlers) || is_array($enable_widget_handlers)) {
            // ignore access restrictions
            // because if a group is created with a visibility of only group members
            // the group owner is not yet added to the acl and thus can't edit the newly created widgets
            $ia = elgg_set_ignore_access(true);
            if (!empty($current_widgets) && is_array($current_widgets)) {
                foreach ($current_widgets as $column => $widgets) {
                    // count for later balancing
                    $column_counts[$column] = count($widgets);
                    if (!empty($widgets) && is_array($widgets)) {
                        foreach ($widgets as $order => $widget) {
                            // check if a widget which sould be enabled isn't already enabled
                            $enable_index = array_search($widget->handler, $enable_widget_handlers);
                            if ($enable_index !== false) {
                                // already enabled, do add duplicate
                                unset($enable_widget_handlers[$enable_index]);
                            }
                        }
                    }
                }
            }
            // add new widgets
            if (!empty($enable_widget_handlers)) {
                foreach ($enable_widget_handlers as $handler) {
                    $widget_guid = elgg_create_widget($object->getGUID(), $handler, "groups", $object->access_id);
                    if (!empty($widget_guid)) {
                        $widget = get_entity($widget_guid);
                        if ($column_counts[1] <= $column_counts[2]) {
                            // move to the end of the first column
                            $widget->move(1, 9000);
                            $column_counts[1]++;
                        } else {
                            // move to the end of the second
                            $widget->move(2, 9000);
                            $column_counts[2]++;
                        }
                    }
                }
            }
            // restore access restrictions
            elgg_set_ignore_access($ia);
        }
    }
}