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<?php
/*
* File: ratatoeskr/sys/plugin_api.php
* Plugin API contains the plugin base class and other interfaces to Ratatöskr.
*
* License:
* This file is part of Ratatöskr.
* Ratatöskr is licensed unter the MIT / X11 License.
* See "ratatoeskr/licenses/ratatoeskr" for more information.
*/
require_once(dirname(__FILE__) . "/models.php");
require_once(dirname(__FILE__) . "/textprocessors.php");
require_once(dirname(__FILE__) . "/../frontend.php");
/*
* Constant: APIVERSION
* The current API version (5).
*/
define("APIVERSION", 5);
/*
* Array: $api_compat
* Array of API versions, this version is compatible to (including itself).
*/
$api_compat = array(3, 4, 5);
$url_handlers = array();
/*
* Function: register_url_handler
* Register an URL handler. See <ratatoeskr/sys/urlprocess.php> for more details.
*
* Parameters:
* $name - The name of the new URL
* $callback - The Function to be called (see <url_process>).
*/
function register_url_handler($name, $callback)
{
global $url_handlers;
$url_handlers[$name] = $callback;
}
$pluginpages_handlers = array();
/*
* Class: RatatoeskrPlugin
* An abstract class to be extended in order to write your own Plugin.
*/
abstract class RatatoeskrPlugin
{
private $id;
/*
* Variables: Protected variables
*
* $kvstorage - The Key-Value-Storage for the Plugin.
* $ste - Access to the global STECore object.
* $rel_path_to_root - Relative URL to the root of the page.
*/
protected $kvstorage;
protected $ste;
protected $rel_path_to_root;
/*
* Constructor: __construct
* Performing some neccessary initialisation stuff.
* If you are overwriting this function, you *really* should call parent::__construct!
*
* Parameters:
* $id - The ID of the plugin (not the name).
*/
public function __construct($id)
{
global $ste, $rel_path_to_root;
$this->id = $id;
$this->kvstorage = new PluginKVStorage($id);
$this->ste = $ste;
$this->rel_path_to_root = $rel_path_to_root;
}
/*
* Functions: Some getters
*
* get_id - get the Plugin-ID
* get_custompriv_dir - Get path to the custompriv directory of your plugin.
* get_custompub_dir - Get path to the custompub directory of your plugin.
* get_custompub_url - Get URL (can be accessed from the web) to the custompub directory of your plugin.
* get_template_dir - Get path to your template directory to be used with STE.
*/
final public function get_id() { return $this->id; }
final protected function get_custompriv_dir() { return SITE_BASE_PATH . "/ratatoeskr/plugin_extradata/private/" . $this->id; }
final protected function get_custompub_dir() { return SITE_BASE_PATH . "/ratatoeskr/plugin_extradata/public/" . $this->id; }
final protected function get_custompub_url() { return $GLOBALS["rel_path_to_root"] . "/ratatoeskr/plugin_extradata/public/" . $this->id; }
final protected function get_template_dir() { return "/plugintemplates/" . $this->id; }
/*
* Function: register_url_handler
* Register a URL handler
*
* Parameters:
* $name - Name of URL
* $fx - The function.
*/
final protected function register_url_handler($name, $fx)
{
register_url_handler($name, $fx);
}
/*
* Function: register_ste_tag
* Register a custom STE tag.
*
* Parameters:
* $name - Name of your new STE tag.
* $fx - Function to register with this tag.
*/
final protected function register_ste_tag($name, $fx)
{
$this->ste->register_tag($name, $fx);
}
/*
* Function: register_textprocessor
* Register a textprocessor.
*
* Parameters:
* $name - The name of the textprocessor-
* $fx - Function to register (function($input), returns HTML).
* $visible_in_backend - Should this textprocessor be visible in the backend? Defaults to True.
*/
final protected function register_textprocessor($name, $fx, $visible_in_backend=True)
{
textprocessor_register($name, $fx, $visible_in_backend);
}
/*
* Function: register_comment_validator
* Register a comment validator.
*
* A comment validator is a function, that checks the $_POST fields and decides whether a comment should be stored or not (throws an <CommentRejected> exception with the rejection reason as the message).
*
* Parameters:
* $fx - Validator function.
*/
final protected function register_comment_validator($fx)
{
global $comment_validators;
$comment_validators[] = $fx;
}
/*
* Function: register_on_comment_store
* Register a function that will be called, after a comment was saved.
*
* Parameters:
* $fx - Function, that accepts one parameter (a <Comment> object).
*/
final protected function register_on_comment_store($fx)
{
global $on_comment_store;
$on_comment_store[] = $fx;
}
/*
* Function: register_backend_pluginpage
* Register a backend subpage for your plugin.
*
* Parameters:
* $label - The label for the page.
* $fx - A function for <urlprocess>.
*
* Your $fx should output output the result of a STE template, which should load "/systemtemplates/master.html" and overwrite the "content" section.
*
* If you need a URL to your pluginpage, you can use <get_backend_pluginpage_url> and the STE variable $rel_path_to_pluginpage.
*
* See also:
* <prepare_backend_pluginpage>
*/
final protected function register_backend_pluginpage($label, $fx)
{
global $pluginpages_handlers;
$this->ste->vars["pluginpages"][$this->id] = $label;
asort($this->ste->vars["pluginpages"]);
$pluginid = $this->id;
$pluginpages_handlers["p{$this->id}"] = function(&$data, $url_now, &$url_next) use($pluginid, $fx)
{
global $ste, $rel_path_to_root;
$ste->vars["rel_path_to_pluginpage"] = "$rel_path_to_root/backend/pluginpages/p$pluginid";
$rv = call_user_func_array($fx, array(&$data, $url_now, &$url_next));
unset($ste->vars["rel_path_to_pluginpage"]);
return $rv;
};
}
/*
* Function: get_backend_pluginpage_url
* Get the URL to your backend plugin page.
*
* Returns:
* The URL to your backend plugin page.
*/
final protected function get_backend_pluginpage_url()
{
global $rel_path_to_root;
return "$rel_path_to_root/backend/pluginpages/p{$this->id}";
}
/*
* Function: prepare_backend_pluginpage
* Automatically sets the page title and highlights the menu-entry of your backend subpage.
*/
final protected function prepare_backend_pluginpage()
{
$this->ste->vars["section"] = "plugins";
$this->ste->vars["submenu"] = "plugin" . $this->id;
$this->ste->vars["pagetitle"] = $this->ste->vars["pluginpages"][$this->id];
}
/*
* Functions: Functions that are called at special events
*
* init - Will be called after plugin is loaded. You should register your stuff here.
* atexit - Will be called, when Ratatöskr will exit.
* install - Will be called after installation. If your plugin needs to initialize some database stuff or generate files, this is the right function.
* uninstall - Will be called during uninstallation. If you used the install function you should undo your custom installation stuff.
* update - Will be called after your plugin was updated to a new version.
*/
public function init() {}
public function atexit() {}
public function install() {}
public function uninstall() {}
public function update() {}
}
?>
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