diff options
Diffstat (limited to 'engine/lib/navigation.php')
| -rw-r--r-- | engine/lib/navigation.php | 368 |
1 files changed, 354 insertions, 14 deletions
diff --git a/engine/lib/navigation.php b/engine/lib/navigation.php index 1d3098938..ab9cc05e8 100644 --- a/engine/lib/navigation.php +++ b/engine/lib/navigation.php @@ -3,6 +3,45 @@ * Elgg navigation library * Functions for managing menus and other navigational elements * + * Breadcrumbs + * Elgg uses a breadcrumb stack. The page handlers (controllers in MVC terms) + * push the breadcrumb links onto the stack. @see elgg_push_breadcrumb() + * + * + * Pagination + * Automatically handled by Elgg when using elgg_list_entities* functions. + * @see elgg_list_entities() + * + * + * Tabs + * @see navigation/tabs view + * + * + * Menus + * Elgg uses a single interface to manage its menus. Menu items are added with + * {@link elgg_register_menu_item()}. This is generally used for menus that + * appear only once per page. For dynamic menus (such as the hover + * menu for user's avatar), a plugin hook is emitted when the menu is being + * created. The hook is 'register', 'menu:<menu_name>'. For more details on this, + * @see elgg_view_menu(). + * + * Menus supported by the Elgg core + * Standard menus: + * site Site navigation shown on every page. + * page Page menu usually shown in a sidebar. Uses Elgg's context. + * topbar Topbar menu shown on every page. The default has two sections. + * footer Like the topbar but in the footer. + * extras Links about content on the page. The RSS link is added to this. + * + * Dynamic menus (also called just-in-time menus): + * user_hover Avatar hover menu. The user entity is passed as a parameter. + * entity The set of links shown in the summary of an entity. + * river Links shown on river items. + * owner_block Links shown for a user or group in their owner block. + * filter The tab filter for content (all, mine, friends) + * title The buttons shown next to a content title. + * long-text The links shown above the input/longtext view. + * * @package Elgg.Core * @subpackage Navigation */ @@ -10,19 +49,40 @@ /** * Register an item for an Elgg menu * + * @warning Generally you should not use this in response to the plugin hook: + * 'register', 'menu:<menu_name>'. If you do, you may end up with many incorrect + * links on a dynamic menu. + * + * @warning A menu item's name must be unique per menu. If more than one menu + * item with the same name are registered, the last menu item takes priority. + * + * @see elgg_view_menu() for the plugin hooks available for modifying a menu as + * it is being rendered. + * * @param string $menu_name The name of the menu: site, page, userhover, * userprofile, groupprofile, or any custom menu * @param mixed $menu_item A ElggMenuItem object or an array of options in format: * name => STR Menu item identifier (required) - * title => STR Menu item title (required) - * url => STR Menu item URL (required) + * text => STR Menu item display text (required) + * href => STR Menu item URL (required) (false for non-links. + * @warning If you disable the href the <a> tag will + * not appear, so the link_class will not apply. If you + * put <a> tags in manually through the 'text' option + * the default CSS selector .elgg-menu-$menu > li > a + * may affect formatting. Wrap in a <span> if it does.) * contexts => ARR Page context strings * section => STR Menu section identifier - * tooltip => STR Menu item tooltip + * title => STR Menu item tooltip * selected => BOOL Is this menu item currently selected * parent_name => STR Identifier of the parent menu item + * link_class => STR A class or classes for the <a> tag + * item_class => STR A class or classes for the <li> tag * - * Custom options can be added as key value pairs. + * Additional options that the view output/url takes can be + * passed in the array. If the 'confirm' key is passed, the + * menu link uses the 'output/confirmlink' view. Custom + * options can be added by using the 'data' key with the + * value being an associative array. * * @return bool * @since 1.8.0 @@ -35,13 +95,17 @@ function elgg_register_menu_item($menu_name, $menu_item) { } if (is_array($menu_item)) { - $menu_item = ElggMenuItem::factory($menu_item); - if (!$menu_item) { + $item = ElggMenuItem::factory($menu_item); + if (!$item) { + elgg_log("Unable to add menu item '{$menu_item['name']}' to '$menu_name' menu", 'WARNING'); + elgg_log(print_r($menu_item, true), 'DEBUG'); return false; } + } else { + $item = $menu_item; } - $CONFIG->menus[$menu_name][] = $menu_item; + $CONFIG->menus[$menu_name][] = $item; return true; } @@ -62,6 +126,7 @@ function elgg_unregister_menu_item($menu_name, $item_name) { } foreach ($CONFIG->menus[$menu_name] as $index => $menu_object) { + /* @var ElggMenuItem $menu_object */ if ($menu_object->getName() == $item_name) { unset($CONFIG->menus[$menu_name][$index]); return true; @@ -72,6 +137,70 @@ function elgg_unregister_menu_item($menu_name, $item_name) { } /** + * Check if a menu item has been registered + * + * @param string $menu_name The name of the menu + * @param string $item_name The unique identifier for this menu item + * + * @return bool + * @since 1.8.0 + */ +function elgg_is_menu_item_registered($menu_name, $item_name) { + global $CONFIG; + + if (!isset($CONFIG->menus[$menu_name])) { + return false; + } + + foreach ($CONFIG->menus[$menu_name] as $menu_object) { + /* @var ElggMenuItem $menu_object */ + if ($menu_object->getName() == $item_name) { + return true; + } + } + + return false; +} + +/** + * Convenience function for registering a button to title menu + * + * The URL must be $handler/$name/$guid where $guid is the guid of the page owner. + * The label of the button is "$handler:$name" so that must be defined in a + * language file. + * + * This is used primarily to support adding an add content button + * + * @param string $handler The handler to use or null to autodetect from context + * @param string $name Name of the button + * @return void + * @since 1.8.0 + */ +function elgg_register_title_button($handler = null, $name = 'add') { + if (elgg_is_logged_in()) { + + if (!$handler) { + $handler = elgg_get_context(); + } + + $owner = elgg_get_page_owner_entity(); + if (!$owner) { + // no owns the page so this is probably an all site list page + $owner = elgg_get_logged_in_user_entity(); + } + if ($owner && $owner->canWriteToContainer()) { + $guid = $owner->getGUID(); + elgg_register_menu_item('title', array( + 'name' => $name, + 'href' => "$handler/$name/$guid", + 'text' => elgg_echo("$handler:$name"), + 'link_class' => 'elgg-button elgg-button-action', + )); + } + } +} + +/** * Adds a breadcrumb to the breadcrumbs stack. * * @param string $title The title to display @@ -84,12 +213,12 @@ function elgg_unregister_menu_item($menu_name, $item_name) { */ function elgg_push_breadcrumb($title, $link = NULL) { global $CONFIG; - if (!is_array($CONFIG->breadcrumbs)) { + if (!isset($CONFIG->breadcrumbs)) { $CONFIG->breadcrumbs = array(); } // avoid key collisions. - $CONFIG->breadcrumbs[] = array('title' => $title, 'link' => $link); + $CONFIG->breadcrumbs[] = array('title' => elgg_get_excerpt($title, 100), 'link' => $link); } /** @@ -103,7 +232,7 @@ function elgg_pop_breadcrumb() { global $CONFIG; if (is_array($CONFIG->breadcrumbs)) { - array_pop($CONFIG->breadcrumbs); + return array_pop($CONFIG->breadcrumbs); } return FALSE; @@ -119,7 +248,11 @@ function elgg_pop_breadcrumb() { function elgg_get_breadcrumbs() { global $CONFIG; - return (is_array($CONFIG->breadcrumbs)) ? $CONFIG->breadcrumbs : array(); + if (isset($CONFIG->breadcrumbs) && is_array($CONFIG->breadcrumbs)) { + return $CONFIG->breadcrumbs; + } + + return array(); } /** @@ -132,6 +265,7 @@ function elgg_get_breadcrumbs() { * @param array $return Menu array * @param array $params * @return array + * @access private */ function elgg_site_menu_setup($hook, $type, $return, $params) { @@ -162,15 +296,90 @@ function elgg_site_menu_setup($hook, $type, $return, $params) { } $return['default'] = $featured; - $return['more'] = $registered; + if (count($registered) > 0) { + $return['more'] = $registered; + } } else { // no featured menu items set $max_display_items = 5; // the first n are shown, rest added to more list + // if only one item on more menu, stick it with the rest $num_menu_items = count($return['default']); - if ($num_menu_items > $max_display_items) { - $return['more'] = array_splice($return['default'], $max_display_items); + if ($num_menu_items > ($max_display_items + 1)) { + $return['more'] = array_splice($return['default'], $max_display_items); + } + } + + // check if we have anything selected + $selected = false; + foreach ($return as $section) { + foreach ($section as $item) { + if ($item->getSelected()) { + $selected = true; + break 2; + } + } + } + + if (!$selected) { + // nothing selected, match name to context or match url + $current_url = current_page_url(); + foreach ($return as $section_name => $section) { + foreach ($section as $key => $item) { + // only highlight internal links + if (strpos($item->getHref(), elgg_get_site_url()) === 0) { + if ($item->getName() == elgg_get_context()) { + $return[$section_name][$key]->setSelected(true); + break 2; + } + if ($item->getHref() == $current_url) { + $return[$section_name][$key]->setSelected(true); + break 2; + } + } + } + } + } + + return $return; +} + +/** + * Add the comment and like links to river actions menu + * @access private + */ +function elgg_river_menu_setup($hook, $type, $return, $params) { + if (elgg_is_logged_in()) { + $item = $params['item']; + /* @var ElggRiverItem $item */ + $object = $item->getObjectEntity(); + // comments and non-objects cannot be commented on or liked + if (!elgg_in_context('widgets') && $item->annotation_id == 0) { + // comments + if ($object->canComment()) { + $options = array( + 'name' => 'comment', + 'href' => "#comments-add-$object->guid", + 'text' => elgg_view_icon('speech-bubble'), + 'title' => elgg_echo('comment:this'), + 'rel' => 'toggle', + 'priority' => 50, + ); + $return[] = ElggMenuItem::factory($options); + } + } + + if (elgg_is_admin_logged_in()) { + $options = array( + 'name' => 'delete', + 'href' => elgg_add_action_tokens_to_url("action/river/delete?id=$item->id"), + 'text' => elgg_view_icon('delete'), + 'title' => elgg_echo('delete'), + 'confirm' => elgg_echo('deleteconfirm'), + 'priority' => 200, + ); + $return[] = ElggMenuItem::factory($options); } } @@ -178,10 +387,141 @@ function elgg_site_menu_setup($hook, $type, $return, $params) { } /** + * Entity menu is list of links and info on any entity + * @access private + */ +function elgg_entity_menu_setup($hook, $type, $return, $params) { + if (elgg_in_context('widgets')) { + return $return; + } + + $entity = $params['entity']; + /* @var ElggEntity $entity */ + $handler = elgg_extract('handler', $params, false); + + // access + $access = elgg_view('output/access', array('entity' => $entity)); + $options = array( + 'name' => 'access', + 'text' => $access, + 'href' => false, + 'priority' => 100, + ); + $return[] = ElggMenuItem::factory($options); + + if ($entity->canEdit() && $handler) { + // edit link + $options = array( + 'name' => 'edit', + 'text' => elgg_echo('edit'), + 'title' => elgg_echo('edit:this'), + 'href' => "$handler/edit/{$entity->getGUID()}", + 'priority' => 200, + ); + $return[] = ElggMenuItem::factory($options); + + // delete link + $options = array( + 'name' => 'delete', + 'text' => elgg_view_icon('delete'), + 'title' => elgg_echo('delete:this'), + 'href' => "action/$handler/delete?guid={$entity->getGUID()}", + 'confirm' => elgg_echo('deleteconfirm'), + 'priority' => 300, + ); + $return[] = ElggMenuItem::factory($options); + } + + return $return; +} + +/** + * Widget menu is a set of widget controls + * @access private + */ +function elgg_widget_menu_setup($hook, $type, $return, $params) { + + $widget = $params['entity']; + /* @var ElggWidget $widget */ + $show_edit = elgg_extract('show_edit', $params, true); + + $collapse = array( + 'name' => 'collapse', + 'text' => ' ', + 'href' => "#elgg-widget-content-$widget->guid", + 'class' => 'elgg-widget-collapse-button', + 'rel' => 'toggle', + 'priority' => 1 + ); + $return[] = ElggMenuItem::factory($collapse); + + if ($widget->canEdit()) { + $delete = array( + 'name' => 'delete', + 'text' => elgg_view_icon('delete-alt'), + 'title' => elgg_echo('widget:delete', array($widget->getTitle())), + 'href' => "action/widgets/delete?widget_guid=$widget->guid", + 'is_action' => true, + 'class' => 'elgg-widget-delete-button', + 'id' => "elgg-widget-delete-button-$widget->guid", + 'priority' => 900 + ); + $return[] = ElggMenuItem::factory($delete); + + if ($show_edit) { + $edit = array( + 'name' => 'settings', + 'text' => elgg_view_icon('settings-alt'), + 'title' => elgg_echo('widget:edit'), + 'href' => "#widget-edit-$widget->guid", + 'class' => "elgg-widget-edit-button", + 'rel' => 'toggle', + 'priority' => 800, + ); + $return[] = ElggMenuItem::factory($edit); + } + } + + return $return; +} + +/** + * Adds a delete link to "generic_comment" annotations + * @access private + */ +function elgg_annotation_menu_setup($hook, $type, $return, $params) { + $annotation = $params['annotation']; + /* @var ElggAnnotation $annotation */ + + if ($annotation->name == 'generic_comment' && $annotation->canEdit()) { + $url = elgg_http_add_url_query_elements('action/comments/delete', array( + 'annotation_id' => $annotation->id, + )); + + $options = array( + 'name' => 'delete', + 'href' => $url, + 'text' => "<span class=\"elgg-icon elgg-icon-delete\"></span>", + 'confirm' => elgg_echo('deleteconfirm'), + 'encode_text' => false + ); + $return[] = ElggMenuItem::factory($options); + } + + return $return; +} + + +/** * Navigation initialization + * @access private */ function elgg_nav_init() { elgg_register_plugin_hook_handler('prepare', 'menu:site', 'elgg_site_menu_setup'); + elgg_register_plugin_hook_handler('register', 'menu:river', 'elgg_river_menu_setup'); + elgg_register_plugin_hook_handler('register', 'menu:entity', 'elgg_entity_menu_setup'); + elgg_register_plugin_hook_handler('register', 'menu:widget', 'elgg_widget_menu_setup'); + elgg_register_plugin_hook_handler('register', 'menu:annotation', 'elgg_annotation_menu_setup'); } elgg_register_event_handler('init', 'system', 'elgg_nav_init'); |