Widgets.php

<?php
/**
 * Piwik - free/libre analytics platform
 *
 * @link http://piwik.org
 * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
 */

namespace Piwik\Plugins\ExamplePlugin;

use Piwik\View;
use Piwik\WidgetsList;

/**
 * This class allows you to add your own widgets to the Piwik platform. In case you want to remove widgets from another
 * plugin please have a look at the "configureWidgetsList()" method.
 * To configure a widget simply call the corresponding methods as described in the API-Reference:
 * http://developer.piwik.org/api-reference/Piwik/Plugin\Widgets
 */
class Widgets extends \Piwik\Plugin\Widgets
{
    /**
     * Here you can define the category the widget belongs to. You can reuse any existing widget category or define
     * your own category.
     * @var string
     */
    protected $category = 'Example Category';

    /**
     * Here you can add one or multiple widgets. You can add a widget by calling the method "addWidget()" and pass the
     * name of the widget as well as a method name that should be called to render the widget. The method can be
     * defined either directly here in this widget class or in the controller in case you want to reuse the same action
     * for instance in the menu etc.
     */
    protected function init()
    {
        // $this->addWidget('Example Widget Name', $method = 'myExampleWidget');
        // $this->addWidget('Example Widget 2', $method = 'myExampleWidget', $params = array('myparam' => 'myvalue'));
    }

    /**
     * This method renders a widget as defined in "init()". It's on you how to generate the content of the
     * widget. As long as you return a string everything is fine. You can use for instance a "Piwik\View" to render a
     * twig template. In such a case don't forget to create a twig template (eg. myViewTemplate.twig) in the
     * "templates" directory of your plugin.
     *
     * @return string
     */
    public function myExampleWidget()
    {
        // $view = new View('@ExamplePlugin/myViewTemplate');
        // return $view->render();

        return 'My Widget Text';
    }

    /**
     * Here you can remove any widgets defined by any plugin.
     *
     * @param WidgetsList $widgetsList
     */
    public function configureWidgetsList(WidgetsList $widgetsList)
    {
        // $widgetsList->remove('NameOfWidgetCategory'); // will remove all widgets having this category
        // $widgetsList->remove('NameOfWidgetCategory', 'Widget name'); // will only remove a specific widget
    }
}