/**
* Checks if the plugin can be disabled.
*
* @return boolean
*/
public function canBeDisabled()
{
if (!$this->isEnabled()) {
// The plugin was not enabled thus it cannot be disabled
return false;
}
// Make sure that the plugin has no enabled dependent plugins.
foreach ($this->getDependentPlugins() as $plugin_name) {
$plugin = new PluginInfo($plugin_name);
if ($plugin->isEnabled()) {
return false;
}
}
return true;
}
/**
* Gets string representation of the current plugin state.
*
* @param PluginInfo $plugin Plugin to get state for.
* @return string Human readable representation of plugin's state.
*/
protected function getPluginState(PluginInfo $plugin)
{
if (!$plugin->isEnabled()) {
// The plugin is just disabled
return getlocal('disabled');
}
if (PluginManager::getInstance()->hasPlugin($plugin->getName())) {
// The plugin is enabled and works well
return getlocal('working');
}
// The plugin is enabled but something is wrong.
if ($plugin->needsUpdate()) {
// The plugin is not working because it needs to be updated.
return getlocal('needs update');
}
// Actually we do not know why the plugin does not work. The only thing
// that can be said is the plugin was not initialized correctly by some
// reasons.
return getlocal('not initialized');
}
/**
* Tries to disable a plugin.
*
* @param string $plugin_name Name of the plugin to disable.
* @return boolean Indicates if the plugin has been disabled or not.
*/
public function disable($plugin_name)
{
$plugin = new PluginInfo($plugin_name);
if (!$plugin->isEnabled()) {
// The plugin is not enabled
return true;
}
if (!$plugin->canBeDisabled()) {
// The plugin cannot be disabled
return false;
}
$plugin->getState()->enabled = false;
$plugin->getState()->save();
return true;
}