From 562336f5ff04ba4813a87b06e8380b99025a5cfd Mon Sep 17 00:00:00 2001
From: Alexander Ebert <ebert@woltlab.com>
Date: Sat, 28 May 2016 01:10:13 +0200
Subject: [PATCH] Added handling of attachment images in editor

---
 .../filter/MessageHtmlInputFilter.class.php   |  3 ++
 .../input/node/HtmlInputNodeImg.class.php     | 34 +++++++++++++++++++
 .../node/HtmlInputNodeProcessor.class.php     |  1 +
 3 files changed, 38 insertions(+)
 create mode 100644 wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeImg.class.php

diff --git a/wcfsetup/install/files/lib/system/html/input/filter/MessageHtmlInputFilter.class.php b/wcfsetup/install/files/lib/system/html/input/filter/MessageHtmlInputFilter.class.php
index 3c212884e5..49627f2735 100644
--- a/wcfsetup/install/files/lib/system/html/input/filter/MessageHtmlInputFilter.class.php
+++ b/wcfsetup/install/files/lib/system/html/input/filter/MessageHtmlInputFilter.class.php
@@ -52,5 +52,8 @@ class MessageHtmlInputFilter implements IHtmlInputFilter {
 			'data-name' => 'Text',
 			'data-uuid' => 'Text'
 		]);
+		
+		// add data-attachment-id="" for <img>
+		$definition->addAttribute('img', 'data-attachment-id', 'Number');
 	}
 }
diff --git a/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeImg.class.php b/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeImg.class.php
new file mode 100644
index 0000000000..1d4da85b85
--- /dev/null
+++ b/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeImg.class.php
@@ -0,0 +1,34 @@
+<?php
+namespace wcf\system\html\input\node;
+use wcf\system\html\node\AbstractHtmlNode;
+use wcf\system\html\node\HtmlNodeProcessor;
+use wcf\util\DOMUtil;
+use wcf\util\JSON;
+
+/**
+ * TOOD documentation
+ * @since	2.2
+ */
+class HtmlInputNodeImg extends AbstractHtmlNode {
+	protected $tagName = 'img';
+	
+	public function process(array $elements, HtmlNodeProcessor $htmlNodeProcessor) {
+		/** @var \DOMElement $element */
+		foreach ($elements as $element) {
+			$class = $element->getAttribute('class');
+			if ($class !== 'woltlabAttachment') {
+				continue;
+			}
+			
+			$attachmentID = intval($element->getAttribute('data-attachment-id'));
+			if (!$attachmentID) {
+				continue;
+			}
+			
+			$newElement = $element->ownerDocument->createElement('woltlab-metacode');
+			$newElement->setAttribute('data-name', 'attach');
+			$newElement->setAttribute('data-attributes', base64_encode(JSON::encode([$attachmentID])));
+			DOMUtil::replaceElement($element, $newElement, false);
+		}
+	}
+}
diff --git a/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeProcessor.class.php b/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeProcessor.class.php
index a1d6ae6221..35a8485d40 100644
--- a/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeProcessor.class.php
+++ b/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeProcessor.class.php
@@ -27,6 +27,7 @@ class HtmlInputNodeProcessor extends HtmlNodeProcessor implements IHtmlInputNode
 		
 		// handle static converters
 		$this->invokeHtmlNode(new HtmlInputNodeWoltlabMetacode());
+		$this->invokeHtmlNode(new HtmlInputNodeImg());
 		
 		// extract embedded content
 		$this->parseEmbeddedContent();
-- 
2.20.1