From ba9ad2f73021061326e40b157c5031d9b1c31b2e Mon Sep 17 00:00:00 2001
From: Reyo Stallenberg <reyostallenberg@gmail.com>
Date: Mon, 2 Jul 2018 14:19:45 +0200
Subject: [PATCH 1/2] Dispatch events in DompdfWrapper

---
 README.md                         |  6 ++++++
 src/Events.php                    | 18 ++++++++++++++++++
 src/Resources/config/services.xml |  3 +++
 src/Wrapper/DompdfWrapper.php     | 28 ++++++++++++++++++++++++++++
 4 files changed, 55 insertions(+)
 create mode 100755 src/Events.php

diff --git a/README.md b/README.md
index 1c65ad73..b1ab4b21 100644
--- a/README.md
+++ b/README.md
@@ -66,6 +66,12 @@ core23_dompdf:
         ...
 ```
 
+### Events
+
+The dompdf wrapper dispatches events to convenient get the inner dompdf instance when creating the pdf.
+- `dompdf.output` is dispatched in getPdf
+- `dompdf.stream` is dispatched in streamHtml
+
 ## License
 
 This bundle is under the [MIT license](LICENSE.md).
diff --git a/src/Events.php b/src/Events.php
new file mode 100755
index 00000000..9da1c95c
--- /dev/null
+++ b/src/Events.php
@@ -0,0 +1,18 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * (c) Christian Gripp <mail@core23.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Core23\DompdfBundle;
+
+final class Events
+{
+    const OUTPUT = 'dompdf.output';
+    const STREAM = 'dompdf.stream';
+}
diff --git a/src/Resources/config/services.xml b/src/Resources/config/services.xml
index 0b320e85..7b6e16ca 100644
--- a/src/Resources/config/services.xml
+++ b/src/Resources/config/services.xml
@@ -5,6 +5,9 @@
     <service alias="Core23\DompdfBundle\Factory\DompdfFactory" id="dompdf.factory" public="true"/>
     <service id="Core23\DompdfBundle\Wrapper\DompdfWrapper" class="Core23\DompdfBundle\Wrapper\DompdfWrapper" public="true">
       <argument type="service" id="dompdf.factory"/>
+      <call method="setEventDispatcher">
+        <argument type="service" id="event_dispatcher" />
+      </call>
     </service>
     <service id="Core23\DompdfBundle\Factory\DompdfFactory" class="Core23\DompdfBundle\Factory\DompdfFactory" public="true">
       <argument>%core23_dompdf.options%</argument>
diff --git a/src/Wrapper/DompdfWrapper.php b/src/Wrapper/DompdfWrapper.php
index ca63f63f..5f50f026 100644
--- a/src/Wrapper/DompdfWrapper.php
+++ b/src/Wrapper/DompdfWrapper.php
@@ -11,7 +11,10 @@
 
 namespace Core23\DompdfBundle\Wrapper;
 
+use Core23\DompdfBundle\Events;
 use Core23\DompdfBundle\Factory\DompdfFactoryInterface;
+use Symfony\Component\EventDispatcher\EventDispatcherInterface;
+use Symfony\Component\EventDispatcher\GenericEvent;
 
 final class DompdfWrapper implements DompdfWrapperInterface
 {
@@ -20,6 +23,11 @@ final class DompdfWrapper implements DompdfWrapperInterface
      */
     private $dompdfFactory;
 
+    /**
+     * @var EventDispatcherInterface
+     */
+    private $eventDispatcher;
+
     /**
      * @param DompdfFactoryInterface $dompdfFactory
      */
@@ -28,6 +36,15 @@ public function __construct(DompdfFactoryInterface $dompdfFactory)
         $this->dompdfFactory = $dompdfFactory;
     }
 
+    /**
+     * Set the event dispatcher.
+     * @param EventDispatcherInterface $eventDispatcher
+     */
+    public function setEventDispatcher(EventDispatcherInterface $eventDispatcher)
+    {
+        $this->eventDispatcher = $eventDispatcher;
+    }
+
     /**
      * {@inheritdoc}
      */
@@ -36,6 +53,12 @@ public function streamHtml(string $html, string $filename, array $options = []):
         $pdf = $this->dompdfFactory->create($options);
         $pdf->loadHtml($html);
         $pdf->render();
+
+        if ($this->eventDispatcher instanceof EventDispatcherInterface) {
+            $event = new GenericEvent($pdf, ['filename' => $filename, 'html' => $html]);
+            $this->eventDispatcher->dispatch(Events::STREAM, $event);
+        }
+
         $pdf->stream($filename);
     }
 
@@ -48,6 +71,11 @@ public function getPdf(string $html, array $options = []): string
         $pdf->loadHtml($html);
         $pdf->render();
 
+        if ($this->eventDispatcher instanceof EventDispatcherInterface) {
+            $event = new GenericEvent($pdf, ['html' => $html]);
+            $this->eventDispatcher->dispatch(Events::OUTPUT, $event);
+        }
+
         return $pdf->output();
     }
 }

From 3cfd5749394448f6de3a2066db2fc7d5b02d81bf Mon Sep 17 00:00:00 2001
From: Reyo Stallenberg <reyostallenberg@gmail.com>
Date: Mon, 2 Jul 2018 14:33:19 +0200
Subject: [PATCH 2/2] Corrections

---
 README.md                         | 2 ++
 src/Resources/config/services.xml | 2 +-
 src/Wrapper/DompdfWrapper.php     | 3 ++-
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index b1ab4b21..a07b7e40 100644
--- a/README.md
+++ b/README.md
@@ -72,6 +72,8 @@ The dompdf wrapper dispatches events to convenient get the inner dompdf instance
 - `dompdf.output` is dispatched in getPdf
 - `dompdf.stream` is dispatched in streamHtml
 
+See [Symfony event dispatcher documentation](https://symfony.com/doc/current/event_dispatcher.html) for more info.
+
 ## License
 
 This bundle is under the [MIT license](LICENSE.md).
diff --git a/src/Resources/config/services.xml b/src/Resources/config/services.xml
index 7b6e16ca..cef0acc9 100644
--- a/src/Resources/config/services.xml
+++ b/src/Resources/config/services.xml
@@ -6,7 +6,7 @@
     <service id="Core23\DompdfBundle\Wrapper\DompdfWrapper" class="Core23\DompdfBundle\Wrapper\DompdfWrapper" public="true">
       <argument type="service" id="dompdf.factory"/>
       <call method="setEventDispatcher">
-        <argument type="service" id="event_dispatcher" />
+        <argument type="service" id="event_dispatcher"/>
       </call>
     </service>
     <service id="Core23\DompdfBundle\Factory\DompdfFactory" class="Core23\DompdfBundle\Factory\DompdfFactory" public="true">
diff --git a/src/Wrapper/DompdfWrapper.php b/src/Wrapper/DompdfWrapper.php
index 5f50f026..98a93e38 100644
--- a/src/Wrapper/DompdfWrapper.php
+++ b/src/Wrapper/DompdfWrapper.php
@@ -38,9 +38,10 @@ public function __construct(DompdfFactoryInterface $dompdfFactory)
 
     /**
      * Set the event dispatcher.
+     *
      * @param EventDispatcherInterface $eventDispatcher
      */
-    public function setEventDispatcher(EventDispatcherInterface $eventDispatcher)
+    public function setEventDispatcher(EventDispatcherInterface $eventDispatcher): void
     {
         $this->eventDispatcher = $eventDispatcher;
     }