Add Google Calendar support

Author: Jose Manuel Martinez Gallardo

src/Adapters/Google.php

@@ -19,6 +19,7 @@ public static function check(Request $request)
         return $request->isValid() && $request->match([
             'https://maps.google.*',
             'https://www.google.*/maps*',
+            'https://calendar.google.com/calendar/*',
             'https://drive.google.com/file/*/view',
             'https://plus.google.com/*/posts/*',
         ]);
@@ -49,6 +50,10 @@ public function getCode()
                 .'<div class="g-post" data-href="'.$this->request->getUrl().'"></div>';
         }
 
+        if ($this->request->getHost() === 'calendar.google.com') {
+            return Utils::iframe($this->request->getUrl());
+        }
+
         if (($google = $this->getProvider('google'))) {
             return $google->getCode();
         }

tests/GoogleTest.php

@@ -39,4 +39,17 @@ public function testPlus()
             ]
         );
     }
+
+    public function testCalendar()
+    {
+        $this->assertEmbed(
+            'https://calendar.google.com/calendar/embed?src=spain__es%40holiday.calendar.google.com&ctz=Europe/Madrid',
+            [
+                'title' => 'Festivos en España',
+                'type' => 'rich',
+                'code' => '<iframe src="https://calendar.google.com/calendar/embed?src=spain__es%40holiday.calendar.google.com&amp;ctz=Europe%2FMadrid" frameborder="0" allowTransparency="true" style="border:none;overflow:hidden;width:600px;height:400px;"></iframe>',
+                'providerName' => 'google',
+            ]
+        );
+    }
 }