Added calendar link to breadcrumbs

Updates #14

calendar.services.yml

@@ -1,24 +1,13 @@
-# @copyright 2017 City of Bloomington, Indiana
+# @copyright 2017-2021 City of Bloomington, Indiana
 # @license https://www.gnu.org/licenses/old-licenses/gpl-2.0 GNU/GPL2, see LICENSE
-#
-# This file is part of the Google Calendar drupal module.
-#
-# The calendar module is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 2 of the License, or
-# (at your option) any later version.
-#
-# The calendar module is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with the calendar module.  If not, see <https://www.gnu.org/licenses/old-licenses/gpl-2.0/>.
 ---
 services:
   calendar.twig.TwigExtension:
     class: '\Drupal\calendar\Twig\TwigExtension'
     tags:
       - { name: twig.extension }
+  calendar.breadcrumb:
+    class: '\Drupal\calendar\Breadcrumb\BreadcrumbBuilder'
+    tags:
+      - { name: 'breadcrumb_builder', priority: 100 }
 ...

src/Breadcrumb/BreadcrumbBuilder.php

@@ -0,0 +1,50 @@
+<?php
+/**
+ * @copyright 2021 City of Bloomington, Indiana
+ * @license https://www.gnu.org/licenses/old-licenses/gpl-2.0 GNU/GPL2, see LICENSE
+ */
+namespace Drupal\calendar\Breadcrumb;
+use Drupal\calendar\GoogleGateway;
+
+use Drupal\Core\Breadcrumb\BreadcrumbBuilderInterface;
+use Drupal\Core\Routing\RouteMatchInterface;
+use Drupal\Core\Breadcrumb\Breadcrumb;
+use Drupal\Core\Link;
+use Drupal\Core\Url;
+
+class BreadcrumbBuilder implements BreadcrumbBuilderInterface
+{
+    public function applies(RouteMatchInterface $route_match)
+    {
+        $name = explode('.', $route_match->getRouteName());
+        return $name[0] == 'calendar';
+    }
+
+    public function build(RouteMatchInterface $route_match): Breadcrumb
+    {
+        $route      = $route_match->getRouteName();
+        $breadcrumb = new Breadcrumb();
+        $breadcrumb->addCacheContexts(['url']);
+        $breadcrumb->addLink(Link::createFromRoute('Home', '<front>'));
+
+        $config  = \Drupal::config('calendar.settings');
+        $nids    = explode(',', $config->get('calendar_breadcrumb'));
+        $nodes   = \Drupal::entityTypeManager()->getStorage('node')->loadMultiple($nids);
+        foreach ($nodes as $n) {
+            $breadcrumb->addLink(Link::createFromRoute($n->title->value, 'entity.node.canonical', ['node'=>$n->nid->value]));
+        }
+        if ($route == 'calendar.event_view') {
+            try {
+                $id  = $route_match->getParameter('calendar_id');
+                $cal = GoogleGateway::calendar($id);
+                $uri = "https://calendar.google.com/calendar/embed?src=$id&ctz=America/New_York";
+                $url = Url::fromUri($uri, ['absolute' => true, 'https' => true]);
+                $breadcrumb->addLink(Link::fromTextAndUrl($cal->summary, $url));
+
+            }
+            catch (\Exception $e) { }
+        }
+
+        return $breadcrumb;
+    }
+}

src/Form/SettingsForm.php

@@ -1,22 +1,7 @@
 <?php
 /**
- * @copyright 2017 City of Bloomington, Indiana
+ * @copyright 2017-2021 City of Bloomington, Indiana
  * @license https://www.gnu.org/licenses/old-licenses/gpl-2.0 GNU/GPL2, see LICENSE
- *
- * This file is part of the Google Calendar drupal module.
- *
- * The calendar module is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * The calendar module is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with the calendar module.  If not, see <https://www.gnu.org/licenses/old-licenses/gpl-2.0/>.
  */
 namespace Drupal\calendar\Form;
 
@@ -25,25 +10,16 @@
 
 class SettingsForm extends ConfigFormBase
 {
-    /**
-     * {@inheritdoc}
-     */
     public function getFormId()
     {
         return 'calendar_settings';
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function getEditableConfigNames()
     {
         return ['calendar.settings'];
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function buildForm(array $form, FormStateInterface $form_state)
     {
         $config = $this->config('calendar.settings');
@@ -53,17 +29,21 @@ public function buildForm(array $form, FormStateInterface $form_state)
             '#title'         => 'Google User Email',
             '#default_value' => $config->get('google_user_email')
         ];
+        $form['calendar_breadcrumb'] = [
+            '#type'          => 'textfield',
+            '#title'         => 'Breadcrumbs',
+            '#default_value' => $config->get('calendar_breadcrumb'),
+            '#description'   => 'Enter node IDs, separated by commas, to be used as the base breadcrumb for calendar routes'
+        ];
 
         return parent::buildForm($form, $form_state);
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function submitForm(array &$form, FormStateInterface $form_state)
     {
         $this->config('calendar.settings')
-             ->set('google_user_email', $form_state->getValue('google_user_email'))
+             ->set('google_user_email',   $form_state->getValue('google_user_email'))
+             ->set('calendar_breadcrumb', $form_state->getValue('calendar_breadcrumb'))
              ->save();
 
         parent::submitForm($form, $form_state);

src/GoogleGateway.php

@@ -1,22 +1,7 @@
 <?php
 /**
- * @copyright 2017-2018 City of Bloomington, Indiana
+ * @copyright 2017-2021 City of Bloomington, Indiana
  * @license https://www.gnu.org/licenses/old-licenses/gpl-2.0 GNU/GPL2, see LICENSE
- *
- * This file is part of the Google Calendar drupal module.
- *
- * The calendar module is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * The calendar module is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with the calendar module.  If not, see <https://www.gnu.org/licenses/old-licenses/gpl-2.0/>.
  */
 namespace Drupal\calendar;
 
@@ -40,9 +25,19 @@ private static function getClient()
         return $client;
     }
 
+    /**
+     * @see https://developers.google.com/calendar/v3/reference/calendars/get
+     * @throws Google_Service_Exception
+     */
+    public static function calendar(string $calendar_id): \Google_Service_Calendar_Calendar
+    {
+        $service = new \Google_Service_Calendar(self::getClient());
+        return $service->calendars->get($calendar_id);
+    }
+
     /**
      * @see https://developers.google.com/calendar/v3/reference/events/get
-     * @throws \Google_Service_Exception
+     * @throws Google_Service_Exception
      */
     public static function event(string $calendar_id, string $event_id): \Google_Service_Calendar_Event
     {