mod/plugins/views/default/myplugin/example.php
* is called by saying (with the default viewtype):
* echo elgg_view('myplugin/example');
*
* View names that are registered later override those that are
* registered earlier. For plugins this corresponds directly
* to their load order: views in plugins lower in the list override
* those higher in the list.
*
* Plugin views belong in the views/ directory under an appropriate
* viewtype. Views are automatically registered.
*
* Views can be embedded-you can call a view from within a view.
* Views can also be prepended or extended by any other view.
*
* Any view can extend any other view if registered with
* {@link elgg_extend_view()}.
*
* View types are set by passing $_REQUEST['view']. The view type
* 'default' is a standard HTML view. Types can be defined on the fly
* and you can get the current view type with {@link get_current_view()}.
*
* @internal Plugin views are autoregistered before their init functions
* are called, so the init order doesn't affect views.
*
* @internal The file that determines the output of the view is the last
* registered by {@link elgg_set_view_location()}.
*
* @package Elgg.Core
* @subpackage Views
* @link http://docs.elgg.org/Views
*/
/**
* The view type override.
*
* @global string $CURRENT_SYSTEM_VIEWTYPE
* @see elgg_set_viewtype()
*/
global $CURRENT_SYSTEM_VIEWTYPE;
$CURRENT_SYSTEM_VIEWTYPE = "";
/**
* Manually set the viewtype.
*
* View types are detected automatically. This function allows
* you to force subsequent views to use a different viewtype.
*
* @tip Call elgg_set_viewtype() with no parameter to reset.
*
* @param string $viewtype The view type, e.g. 'rss', or 'default'.
*
* @return bool
* @link http://docs.elgg.org/Views/Viewtype
* @example views/viewtype.php
*/
function elgg_set_viewtype($viewtype = "") {
global $CURRENT_SYSTEM_VIEWTYPE;
$CURRENT_SYSTEM_VIEWTYPE = $viewtype;
return true;
}
/**
* Return the current view type.
*
* View types are automatically detected and can be set with $_REQUEST['view']
* or {@link elgg_set_viewtype()}.
*
* @internal View type is determined in this order:
* - $CURRENT_SYSTEM_VIEWTYPE Any overrides by {@link elgg_set_viewtype()}
* - $CONFIG->view The default view as saved in the DB.
* - $_SESSION['view']
*
* @return string The view.
* @see elgg_set_viewtype()
* @link http://docs.elgg.org/Views
* @todo This function's sessions stuff needs rewritten, removed, or explained.
*/
function elgg_get_viewtype() {
global $CURRENT_SYSTEM_VIEWTYPE, $CONFIG;
if ($CURRENT_SYSTEM_VIEWTYPE != "") {
return $CURRENT_SYSTEM_VIEWTYPE;
}
$viewtype = get_input('view', NULL);
if ($viewtype) {
return $viewtype;
}
if (isset($CONFIG->view) && !empty($CONFIG->view)) {
return $CONFIG->view;
}
return 'default';
}
/**
* Register a view type as valid.
*
* @param string $view_type The view type to register
* @return bool
*/
function elgg_register_viewtype($view_type) {
global $CONFIG;
if (!isset($CONFIG->view_types) || !is_array($CONFIG->view_types)) {
$CONFIG->view_types = array();
}
if (!in_array($view_type, $CONFIG->view_types)) {
$CONFIG->view_types[] = $view_type;
}
return true;
}
/**
* Checks if $view_type is valid on this installation.
*
* @param string $view_type View type
*
* @return bool
* @since 1.7.2
* @access private
*/
function elgg_is_valid_view_type($view_type) {
global $CONFIG;
if (!isset($CONFIG->view_types) || !is_array($CONFIG->view_types)) {
return FALSE;
}
return in_array($view_type, $CONFIG->view_types);
}
/**
* Register a viewtype to fall back to a default view if a view isn't
* found for that viewtype.
*
* @tip This is useful for alternate html viewtypes (such as for mobile devices).
*
* @param string $viewtype The viewtype to register
*
* @return void
* @since 1.7.2
* @example views/viewtype_fallback.php Fallback from mobile to default.
*/
function elgg_register_viewtype_fallback($viewtype) {
global $CONFIG;
if (!isset($CONFIG->viewtype)) {
$CONFIG->viewtype = new stdClass;
}
if (!isset($CONFIG->viewtype->fallback)) {
$CONFIG->viewtype->fallback = array();
}
$CONFIG->viewtype->fallback[] = $viewtype;
}
/**
* Checks if a viewtype falls back to default.
*
* @param string $viewtype Viewtype
*
* @return boolean
* @since 1.7.2
*/
function elgg_does_viewtype_fallback($viewtype) {
global $CONFIG;
if (isset($CONFIG->viewtype) && isset($CONFIG->viewtype->fallback)) {
return in_array($viewtype, $CONFIG->viewtype->fallback);
}
return FALSE;
}
/**
* Returns the file location for a view.
*
* @warning This doesn't check if the file exists, but only
* constructs (or extracts) the path and returns it.
*
* @param string $view The view.
* @param string $viewtype The viewtype
*
* @return string
*/
function elgg_get_view_location($view, $viewtype = '') {
global $CONFIG;
if (empty($viewtype)) {
$viewtype = elgg_get_viewtype();
}
if (!isset($CONFIG->views->locations[$viewtype][$view])) {
if (!isset($CONFIG->viewpath)) {
return dirname(dirname(dirname(__FILE__))) . "/views/";
} else {
return $CONFIG->viewpath;
}
} else {
return $CONFIG->views->locations[$viewtype][$view];
}
return false;
}
/**
* Set an alternative base location for a view.
*
* Views are expected to be in plugin_name/views/. This function can
* be used to change that location.
*
* @internal Core view locations are stored in $CONFIG->viewpath.
*
* @tip This is useful to optionally register views in a plugin.
*
* @param string $view The name of the view
* @param string $location The base location path
* @param string $viewtype The view type
*
* @return void
*/
function elgg_set_view_location($view, $location, $viewtype = '') {
global $CONFIG;
if (empty($viewtype)) {
$viewtype = 'default';
}
if (!isset($CONFIG->views)) {
$CONFIG->views = new stdClass;
}
if (!isset($CONFIG->views->locations)) {
$CONFIG->views->locations = array($viewtype => array($view => $location));
} else if (!isset($CONFIG->views->locations[$viewtype])) {
$CONFIG->views->locations[$viewtype] = array($view => $location);
} else {
$CONFIG->views->locations[$viewtype][$view] = $location;
}
}
/**
* Returns whether the specified view exists
*
* @note If $recurse is strue, also checks if a view exists only as an extension.
*
* @param string $view The view name
* @param string $viewtype If set, forces the viewtype
* @param bool $recurse If false, do not check extensions
*
* @return bool
*/
function elgg_view_exists($view, $viewtype = '', $recurse = true) {
global $CONFIG;
// Detect view type
if (empty($viewtype)) {
$viewtype = elgg_get_viewtype();
}
if (!isset($CONFIG->views->locations[$viewtype][$view])) {
if (!isset($CONFIG->viewpath)) {
$location = dirname(dirname(dirname(__FILE__))) . "/views/";
} else {
$location = $CONFIG->viewpath;
}
} else {
$location = $CONFIG->views->locations[$viewtype][$view];
}
if (file_exists($location . "{$viewtype}/{$view}.php")) {
return true;
}
// If we got here then check whether this exists as an extension
// We optionally recursively check whether the extended view exists also for the viewtype
if ($recurse && isset($CONFIG->views->extensions[$view])) {
foreach ($CONFIG->views->extensions[$view] as $view_extension) {
// do not recursively check to stay away from infinite loops
if (elgg_view_exists($view_extension, $viewtype, false)) {
return true;
}
}
}
// Now check if the default view exists if the view is registered as a fallback
if ($viewtype != 'default' && elgg_does_viewtype_fallback($viewtype)) {
return elgg_view_exists($view, 'default');
}
return false;
}
/**
* Return a parsed view.
*
* Views are rendered by a template handler and returned as strings.
*
* Views are called with a special $vars variable set,
* which includes any variables passed as the second parameter.
* For backward compatbility, the following variables are also set but we
* recommend that you do not use them:
* - $vars['config'] The $CONFIG global. (Use {@link elgg_get_config()} instead).
* - $vars['url'] The site URL. (use {@link elgg_get_site_url()} instead).
* - $vars['user'] The logged in user. (use {@link elgg_get_logged_in_user_entity()} instead).
*
* Custom template handlers can be set with {@link set_template_handler()}.
*
* The output of views can be intercepted by registering for the
* view, $view_name plugin hook.
*
* @warning Any variables in $_SESSION will override passed vars
* upon name collision. See {@trac #2124}.
*
* @param string $view The name and location of the view to use
* @param array $vars Variables to pass to the view.
* @param boolean $bypass If set to true, elgg_view will bypass any specified
* alternative template handler; by default, it will
* hand off to this if requested (see set_template_handler)
* @param boolean $debug If set to true, the viewer will complain if it can't find a view
* @param string $viewtype If set, forces the viewtype for the elgg_view call to be
* this value (default: standard detection)
*
* @return string The parsed view
* @see set_template_handler()
* @example views/elgg_view.php
* @link http://docs.elgg.org/View
* @todo $debug isn't used.
* @todo $usercache is redundant.
*/
function elgg_view($view, $vars = array(), $bypass = false, $debug = false, $viewtype = '') {
global $CONFIG;
static $usercache;
$view = (string)$view;
// basic checking for bad paths
if (strpos($view, '..') !== false) {
return false;
}
$view_orig = $view;
// Trigger the pagesetup event
if (!isset($CONFIG->pagesetupdone)) {
$CONFIG->pagesetupdone = true;
elgg_trigger_event('pagesetup', 'system');
}
if (!is_array($usercache)) {
$usercache = array();
}
if (!is_array($vars)) {
elgg_log("Vars in views must be an array: $view", 'ERROR');
$vars = array();
}
if (empty($vars)) {
$vars = array();
}
// @warning - plugin authors: do not expect user, config, and url to be
// set by elgg_view() in the future. Instead, use elgg_get_logged_in_user_entity(),
// elgg_get_config(), and elgg_get_site_url() in your views.
if (!isset($vars['user'])) {
$vars['user'] = elgg_get_logged_in_user_entity();
}
if (!isset($vars['config'])) {
$vars['config'] = $CONFIG;
}
if (!isset($vars['url'])) {
$vars['url'] = elgg_get_site_url();
}
// full_view is the new preferred key for full view on entities @see elgg_view_entity()
// check if full_view is set because that means we've already rewritten it and this is
// coming from another view passing $vars directly.
if (isset($vars['full']) && !isset($vars['full_view'])) {
elgg_deprecated_notice("Use \$vars['full_view'] instead of \$vars['full']", 1.8, 2);
$vars['full_view'] = $vars['full'];
}
if (isset($vars['full_view'])) {
$vars['full'] = $vars['full_view'];
}
// internalname => name (1.8)
if (isset($vars['internalname']) && !isset($vars['__ignoreInternalname']) && !isset($vars['name'])) {
elgg_deprecated_notice('You should pass $vars[\'name\'] now instead of $vars[\'internalname\']', 1.8, 2);
$vars['name'] = $vars['internalname'];
$test=false;
} elseif (isset($vars['name'])) {
if (!isset($vars['internalname'])) {
$vars['__ignoreInternalname'] = '';
}
$vars['internalname'] = $vars['name'];
}
// internalid => id (1.8)
if (isset($vars['internalid']) && !isset($vars['__ignoreInternalid']) && !isset($vars['name'])) {
elgg_deprecated_notice('You should pass $vars[\'id\'] now instead of $vars[\'internalid\']', 1.8, 2);
$vars['id'] = $vars['internalid'];
} elseif (isset($vars['id'])) {
if (!isset($vars['internalid'])) {
$vars['__ignoreInternalid'] = '';
}
$vars['internalid'] = $vars['id'];
}
// If it's been requested, pass off to a template handler instead
if ($bypass == false && isset($CONFIG->template_handler) && !empty($CONFIG->template_handler)) {
$template_handler = $CONFIG->template_handler;
if (is_callable($template_handler)) {
return call_user_func($template_handler, $view, $vars);
}
}
// Get the current viewtype
if (empty($viewtype)) {
$viewtype = elgg_get_viewtype();
}
// Viewtypes can only be alphanumeric
if (preg_match('[\W]', $viewtype)) {
return '';
}
// Set up any extensions to the requested view
if (isset($CONFIG->views->extensions[$view])) {
$viewlist = $CONFIG->views->extensions[$view];
} else {
$viewlist = array(500 => $view);
}
// Start the output buffer, find the requested view file, and execute it
ob_start();
foreach ($viewlist as $priority => $view) {
$view_location = elgg_get_view_location($view, $viewtype);
$view_file = "$view_location$viewtype/$view.php";
$default_location = elgg_get_view_location($view, 'default');
$default_view_file = "{$default_location}default/$view.php";
// try to include view
if (!file_exists($view_file) || !include($view_file)) {
// requested view does not exist
$error = "$viewtype/$view view does not exist.";
// attempt to load default view
if ($viewtype != 'default' && elgg_does_viewtype_fallback($viewtype)) {
if (file_exists($default_view_file) && include($default_view_file)) {
// default view found
$error .= " Using default/$view instead.";
} else {
// no view found at all
$error = "Neither $viewtype/$view nor default/$view view exists.";
}
}
// log warning
elgg_log($error, 'NOTICE');
}
}
// Save the output buffer into the $content variable
$content = ob_get_clean();
// Plugin hook
$params = array('view' => $view_orig, 'vars' => $vars, 'viewtype' => $viewtype);
$content = elgg_trigger_plugin_hook('view', $view_orig, $params, $content);
// backward compatibility with less granular hook will be gone in 2.0
$content_tmp = elgg_trigger_plugin_hook('display', 'view', $params, $content);
if ($content_tmp != $content) {
$content = $content_tmp;
elgg_deprecated_notice('The display:view plugin hook is deprecated by view:view_name', 1.8);
}
return $content;
}
/**
* Extends a view with another view.
*
* The output of any view can be prepended or appended to any other view.
*
* The default action is to append a view. If the priority is less than 500,
* the output of the extended view will be appended to the original view.
*
* Priority can be specified and affects the order in which extensions
* are appended or prepended.
*
* @internal View extensions are stored in
* $CONFIG->views->extensions[$view][$priority] = $view_extension
*
* @param string $view The view to extend.
* @param string $view_extension This view is added to $view
* @param int $priority The priority, from 0 to 1000,
* to add at (lowest numbers displayed first)
* @param string $viewtype Not used
*
* @return void
* @since 1.7.0
* @link http://docs.elgg.org/Views/Ejxtend
* @example views/extend.php
*/
function elgg_extend_view($view, $view_extension, $priority = 501, $viewtype = '') {
global $CONFIG;
if (!isset($CONFIG->views)) {
$CONFIG->views = new stdClass;
}
if (!isset($CONFIG->views->extensions)) {
$CONFIG->views->extensions = array();
}
if (!isset($CONFIG->views->extensions[$view])) {
$CONFIG->views->extensions[$view][500] = "{$view}";
}
while (isset($CONFIG->views->extensions[$view][$priority])) {
$priority++;
}
$CONFIG->views->extensions[$view][$priority] = "{$view_extension}";
ksort($CONFIG->views->extensions[$view]);
}
/**
* Unextends a view.
*
* @param string $view The view that was extended.
* @param string $view_extension This view that was added to $view
*
* @return bool
* @since 1.7.2
*/
function elgg_unextend_view($view, $view_extension) {
global $CONFIG;
if (!isset($CONFIG->views)) {
return FALSE;
}
if (!isset($CONFIG->views->extensions)) {
return FALSE;
}
if (!isset($CONFIG->views->extensions[$view])) {
return FALSE;
}
$priority = array_search($view_extension, $CONFIG->views->extensions[$view]);
if ($priority === FALSE) {
return FALSE;
}
unset($CONFIG->views->extensions[$view][$priority]);
return TRUE;
}
/**
* Assembles and outputs a full page.
*
* A "page" in Elgg is determined by the current view type and
* can be HTML for a browser, RSS for a feed reader, or
* Javascript, PHP and a number of other formats.
*
* @param string $title Title
* @param string $body Body
* @param string $page_shell Optional page shell to use. See page/shells view directory
* @param array $vars Optional vars array to pass to the page
* shell. Automatically adds title, body, and sysmessages
*
* @return string The contents of the page
* @since 1.8
*/
function elgg_view_page($title, $body, $page_shell = 'default', $vars = array()) {
$messages = null;
if (count_messages()) {
// get messages - try for errors first
$messages = system_messages(NULL, "error");
if (count($messages["error"]) == 0) {
// no errors so grab rest of messages
$messages = system_messages(null, "");
} else {
// we have errors - clear out remaining messages
system_messages(null, "");
}
}
$vars['title'] = $title;
$vars['body'] = $body;
$vars['sysmessages'] = $messages;
$vars = elgg_trigger_plugin_hook('output:before', 'page', null, $vars);
// check for deprecated view
if ($page_shell == 'default' && elgg_view_exists('pageshells/pageshell')) {
elgg_deprecated_notice("pageshells/pageshell is deprecated by page/$page_shell", 1.8);
$output = elgg_view('pageshells/pageshell', $vars);
} else {
$output = elgg_view("page/$page_shell", $vars);
}
$vars['page_shell'] = $page_shell;
// Allow plugins to mod output
return elgg_trigger_plugin_hook('output', 'page', $vars, $output);
}
/**
* Displays a layout with optional parameters.
*
* Layouts provide consistent organization of pages and other blocks of content.
* There are a few default layouts in core:
* - admin A special layout for the admin area.
* - one_column A single content column.
* - one_sidebar A content column with sidebar.
* - two_sidebar A content column with two sidebars.
* - widgets A widget canvas.
*
* The layout views take the form page/layouts/$layout_name
* See the individual layouts for what options are supported. The three most
* common layouts have these parameters:
* one_column
* content => string
* one_sidebar
* content => string
* sidebar => string (optional)
* content
* content => string
* sidebar => string (optional)
* buttons => string (override the default add button)
* title => string (override the default title)
* filter_context => string (selected content filter)
* See the content layout view for more parameters
*
* @param string $layout_name The name of the view in page/layouts/.
* @param array $vars Associative array of parameters for the layout view
*
* @return string The layout
*/
function elgg_view_layout($layout_name, $vars = array()) {
if (is_string($vars) || $vars === null) {
elgg_deprecated_notice("The use of unlimited optional string arguments in elgg_view_layout() was deprecated in favor of an options array", 1.8);
$arg = 1;
$param_array = array();
while ($arg < func_num_args()) {
$param_array['area' . $arg] = func_get_arg($arg);
$arg++;
}
} else {
$param_array = $vars;
}
$params = elgg_trigger_plugin_hook('output:before', 'layout', null, $param_array);
// check deprecated location
if (elgg_view_exists("canvas/layouts/$layout_name")) {
elgg_deprecated_notice("canvas/layouts/$layout_name is deprecated by page/layouts/$layout_name", 1.8);
$output = elgg_view("canvas/layouts/$layout_name", $params);
} elseif (elgg_view_exists("page/layouts/$layout_name")) {
$output = elgg_view("page/layouts/$layout_name", $params);
} else {
$output = elgg_view("page/layouts/default", $params);
}
return elgg_trigger_plugin_hook('output:after', 'layout', $params, $output);
}
/**
* Render a menu
*
* @see elgg_register_menu_item() for documentation on adding menu items and
* navigation.php for information on the different menus available.
*
* This function triggers a 'register', 'menu:
*
* @param string $action The name of the action. An action name does not include
* the leading "action/". For example, "login" is an action name.
* @param array $form_vars $vars environment passed to the "input/form" view
* @param array $body_vars $vars environment passed to the "forms/$action" view
*
* @return string The complete form
*/
function elgg_view_form($action, $form_vars = array(), $body_vars = array()) {
global $CONFIG;
$defaults = array(
'action' => $CONFIG->wwwroot . "action/$action",
'body' => elgg_view("forms/$action", $body_vars)
);
$form_class = 'elgg-form-' . preg_replace('/[^a-z0-9]/i', '-', $action);
// append elgg-form class to any class options set
if (isset($form_vars['class'])) {
$form_vars['class'] = $form_vars['class'] . " $form_class";
} else {
$form_vars['class'] = $form_class;
}
return elgg_view('input/form', array_merge($defaults, $form_vars));
}
/**
* View an item in a list
*
* @param object $item ElggEntity or ElggAnnotation
* @param array $vars Additional parameters for the rendering
*
* @return string
* @since 1.8.0
* @access private
*/
function elgg_view_list_item($item, array $vars = array()) {
switch ($item->getType()) {
case 'user':
case 'object':
case 'group':
case 'site':
return elgg_view_entity($item, $vars);
case 'annotation':
return elgg_view_annotation($item, $vars);
case 'river':
return elgg_view_river_item($item, $vars);
default:
return false;
break;
}
}
/**
* View one of the elgg sprite icons
*
* Shorthand for
*
* @param string $name The specific icon to display
* @param string $class Additional class: float, float-alt, or custom class
*
* @return string The html for displaying an icon
*/
function elgg_view_icon($name, $class = '') {
// @todo deprecate boolean in Elgg 1.9
if (is_bool($class) && $class === true) {
$class = 'float';
}
return "";
}
/**
* Displays a user's access collections, using the core/friends/collections view
*
* @param int $owner_guid The GUID of the owning user
*
* @return string A formatted rendition of the collections
* @todo Move to the friends/collection.php page.
* @access private
*/
function elgg_view_access_collections($owner_guid) {
if ($collections = get_user_access_collections($owner_guid)) {
foreach ($collections as $key => $collection) {
$collections[$key]->members = get_members_of_access_collection($collection->id, true);
$collections[$key]->entities = get_user_friends($owner_guid, "", 9999);
}
}
return elgg_view('core/friends/collections', array('collections' => $collections));
}
/**
* Registers a function to handle templates.
*
* Alternative template handlers can be registered to handle
* all output functions. By default, {@link elgg_view()} will
* simply include the view file. If an alternate template handler
* is registered, the view name and passed $vars will be passed to the
* registered function, which is then responsible for generating and returning
* output.
*
* Template handlers need to accept two arguments: string $view_name and array
* $vars.
*
* @warning This is experimental.
*
* @param string $function_name The name of the function to pass to.
*
* @return bool
* @see elgg_view()
* @link http://docs.elgg.org/Views/TemplateHandlers
*/
function set_template_handler($function_name) {
global $CONFIG;
if (!empty($function_name) && is_callable($function_name)) {
$CONFIG->template_handler = $function_name;
return true;
}
return false;
}
/**
* Returns the name of views for in a directory.
*
* Use this to get all namespaced views under the first element.
*
* @param string $dir The main directory that holds the views. (mod/profile/views/)
* @param string $base The root name of the view to use, without the viewtype. (profile)
*
* @return array
* @since 1.7.0
* @todo Why isn't this used anywhere else but in elgg_view_tree()?
* Seems like a useful function for autodiscovery.
* @access private
*/
function elgg_get_views($dir, $base) {
$return = array();
if (file_exists($dir) && is_dir($dir)) {
if ($handle = opendir($dir)) {
while ($view = readdir($handle)) {
if (!in_array($view, array('.', '..', '.svn', 'CVS'))) {
if (is_dir($dir . '/' . $view)) {
if ($val = elgg_get_views($dir . '/' . $view, $base . '/' . $view)) {
$return = array_merge($return, $val);
}
} else {
$view = str_replace('.php', '', $view);
$return[] = $base . '/' . $view;
}
}
}
}
}
return $return;
}
/**
* Returns all views below a partial view.
*
* Settings $view_root = 'profile' will show all available views under
* the "profile" namespace.
*
* @param string $view_root The root view
* @param string $viewtype Optionally specify a view type
* other than the current one.
*
* @return array A list of view names underneath that root view
* @todo This is used once in the deprecated get_activity_stream_data() function.
* @access private
*/
function elgg_view_tree($view_root, $viewtype = "") {
global $CONFIG;
static $treecache;
// Get viewtype
if (!$viewtype) {
$viewtype = elgg_get_viewtype();
}
// Has the treecache been initialised?
if (!isset($treecache)) {
$treecache = array();
}
// A little light internal caching
if (!empty($treecache[$view_root])) {
return $treecache[$view_root];
}
// Examine $CONFIG->views->locations
if (isset($CONFIG->views->locations[$viewtype])) {
foreach ($CONFIG->views->locations[$viewtype] as $view => $path) {
$pos = strpos($view, $view_root);
if ($pos === 0) {
$treecache[$view_root][] = $view;
}
}
}
// Now examine core
$location = $CONFIG->viewpath;
$viewtype = elgg_get_viewtype();
$root = $location . $viewtype . '/' . $view_root;
if (file_exists($root) && is_dir($root)) {
$val = elgg_get_views($root, $view_root);
if (!is_array($treecache[$view_root])) {
$treecache[$view_root] = array();
}
$treecache[$view_root] = array_merge($treecache[$view_root], $val);
}
return $treecache[$view_root];
}
/**
* Auto-registers views from a location.
*
* @note Views in plugin/views/ are automatically registered for active plugins.
* Plugin authors would only need to call this if optionally including
* an entire views structure.
*
* @param string $view_base Optional The base of the view name without the view type.
* @param string $folder Required The folder to begin looking in
* @param string $base_location_path The base views directory to use with elgg_set_view_location()
* @param string $viewtype The type of view we're looking at (default, rss, etc)
*
* @return void
* @since 1.7.0
* @see elgg_set_view_location()
* @todo This seems overly complicated.
* @access private
*/
function autoregister_views($view_base, $folder, $base_location_path, $viewtype) {
if (!isset($i)) {
$i = 0;
}
if ($handle = opendir($folder)) {
while ($view = readdir($handle)) {
if (!in_array($view, array('.', '..', '.svn', 'CVS')) && !is_dir($folder . "/" . $view)) {
// this includes png files because some icons are stored within view directories.
// See commit [1705]
if ((substr_count($view, ".php") > 0) || (substr_count($view, ".png") > 0)) {
if (!empty($view_base)) {
$view_base_new = $view_base . "/";
} else {
$view_base_new = "";
}
elgg_set_view_location($view_base_new . str_replace('.php', '', $view),
$base_location_path, $viewtype);
}
} else if (!in_array($view, array('.', '..', '.svn', 'CVS')) && is_dir($folder . "/" . $view)) {
if (!empty($view_base)) {
$view_base_new = $view_base . "/";
} else {
$view_base_new = "";
}
autoregister_views($view_base_new . $view, $folder . "/" . $view,
$base_location_path, $viewtype);
}
}
return TRUE;
}
return FALSE;
}
/**
* Add the rss link to the extras when if needed
*
* @return void
* @access private
*/
function elgg_views_add_rss_link() {
global $autofeed;
if (isset($autofeed) && $autofeed == true) {
$url = full_url();
if (substr_count($url, '?')) {
$url .= "&view=rss";
} else {
$url .= "?view=rss";
}
$url = elgg_format_url($url);
elgg_register_menu_item('extras', array(
'name' => 'rss',
'text' => elgg_view_icon('rss'),
'href' => $url,
'title' => elgg_echo('feed:rss'),
));
}
}
/**
* Registers deprecated views to avoid making some pages from older plugins
* completely empty.
*
* @access private
*/
function elgg_views_handle_deprecated_views() {
$location = elgg_get_view_location('page_elements/contentwrapper');
if ($location === "/var/www/views/") {
elgg_extend_view('page_elements/contentwrapper', 'page/elements/wrapper');
}
}
/**
* Initialize viewtypes on system boot event
* This ensures simplecache is cleared during upgrades. See #2252
*
* @return void
* @access private
* @elgg_event_handler boot system
*/
function elgg_views_boot() {
global $CONFIG;
elgg_register_simplecache_view('css/elgg');
elgg_register_simplecache_view('css/ie');
elgg_register_simplecache_view('css/ie6');
elgg_register_simplecache_view('css/ie7');
elgg_register_simplecache_view('js/elgg');
elgg_register_js('jquery', '/vendors/jquery/jquery-1.6.2.min.js', 'head');
elgg_register_js('jquery-ui', '/vendors/jquery/jquery-ui-1.8.16.min.js', 'head');
elgg_register_js('jquery.form', '/vendors/jquery/jquery.form.js');
$elgg_js_url = elgg_get_simplecache_url('js', 'elgg');
elgg_register_js('elgg', $elgg_js_url, 'head');
elgg_load_js('jquery');
elgg_load_js('jquery-ui');
elgg_load_js('jquery.form');
elgg_load_js('elgg');
elgg_register_simplecache_view('js/lightbox');
$lightbox_js_url = elgg_get_simplecache_url('js', 'lightbox');
elgg_register_js('lightbox', $lightbox_js_url);
$lightbox_css_url = elgg_get_simplecache_url('css', 'lightbox');
elgg_register_css('lightbox', $lightbox_css_url);
$elgg_css_url = elgg_get_simplecache_url('css', 'elgg');
elgg_register_css('elgg', $elgg_css_url);
elgg_load_css('elgg');
elgg_register_plugin_hook_handler('output:before', 'layout', 'elgg_views_add_rss_link');
// discover the built-in view types
// @todo the cache is loaded in load_plugins() but we need to know view_types earlier
$view_path = $CONFIG->viewpath;
$views = scandir($view_path);
foreach ($views as $view) {
if ('.' !== substr($view, 0, 1) && is_dir($view_path . $view)) {
elgg_register_viewtype($view);
}
}
}
elgg_register_event_handler('boot', 'system', 'elgg_views_boot', 1000);
elgg_register_event_handler('init', 'system', 'elgg_views_handle_deprecated_views');