Pico/lib/PicoPluginInterface.php
2016-12-12 15:31:06 +01:00

102 lines
3.5 KiB
PHP

<?php
/**
* Common interface for Pico plugins
*
* For a list of supported events see {@link DummyPlugin}; you can use
* {@link DummyPlugin} as template for new plugins. For a list of deprecated
* events see {@link PicoDeprecated}.
*
* You SHOULD NOT use deprecated events when implementing this interface.
* Deprecated events are triggered by the {@link PicoDeprecated} plugin, if
* plugins which don't implement this interface are loaded. You can take
* advantage from this behaviour if you want to do something only when old
* plugins are loaded. Consequently the old events are never triggered when
* your plugin is implementing this interface and no old plugins are present.
*
* If you're developing a new plugin, you MUST implement this interface. If
* you're the developer of an old plugin, it is STRONGLY RECOMMENDED to use
* the events introduced in Pico 1.0 when releasing a new version of your
* plugin. If you want to use any of the new events, you MUST implement
* this interface and update all other events you use.
*
* @author Daniel Rudolf
* @link http://picocms.org
* @license http://opensource.org/licenses/MIT The MIT License
* @version 2.0
*/
interface PicoPluginInterface
{
/**
* Constructs a new instance of a Pico plugin
*
* @param Pico $pico current instance of Pico
*/
public function __construct(Pico $pico);
/**
* Handles a event that was triggered by Pico
*
* @param string $eventName name of the triggered event
* @param array $params passed parameters
* @return void
*/
public function handleEvent($eventName, array $params);
/**
* Enables or disables this plugin
*
* @see PicoPluginInterface::isEnabled()
* @see PicoPluginInterface::isStatusChanged()
* @param boolean $enabled enable (true) or disable (false) this plugin
* @param boolean $recursive when true, enable or disable recursively
* In other words, if you enable a plugin, all required plugins are
* enabled, too. When disabling a plugin, all depending plugins are
* disabled likewise. Recursive operations are only performed as long
* as a plugin wasn't enabled/disabled manually. This parameter is
* optional and defaults to true.
* @param boolean $auto enable or disable to fulfill a dependency
* This parameter is optional and defaults to false.
* @return void
* @throws RuntimeException thrown when a dependency fails
*/
public function setEnabled($enabled, $recursive = true, $auto = false);
/**
* Returns true if this plugin is enabled, false otherwise
*
* @see PicoPluginInterface::setEnabled()
* @return boolean plugin is enabled (true) or disabled (false)
*/
public function isEnabled();
/**
* Returns true if the plugin was ever enabled/disabled manually
*
* @see PicoPluginInterface::setEnabled()
* @return boolean plugin is in its default state (true), false otherwise
*/
public function isStatusChanged();
/**
* Returns a list of names of plugins required by this plugin
*
* @return string[] required plugins
*/
public function getDependencies();
/**
* Returns a list of plugins which depend on this plugin
*
* @return object[] dependant plugins
*/
public function getDependants();
/**
* Returns the plugins instance of Pico
*
* @see Pico
* @return Pico the plugins instance of Pico
*/
public function getPico();
}