From a2e671c489528a935c7a4e186188f84ea2b3058e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Julius=20H=C3=A4rtl?= <jus@bitgrid.net>
Date: Sun, 5 Apr 2020 11:00:57 +0200
Subject: [PATCH] Extract preview from opendocument files
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Julius Härtl <jus@bitgrid.net>
---
 lib/private/Preview/OpenDocument.php | 17 ++++++++++++++++-
 lib/private/PreviewManager.php       |  2 ++
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/lib/private/Preview/OpenDocument.php b/lib/private/Preview/OpenDocument.php
index b795441d83..1db7b0be52 100644
--- a/lib/private/Preview/OpenDocument.php
+++ b/lib/private/Preview/OpenDocument.php
@@ -25,11 +25,26 @@
 namespace OC\Preview;
 
 //.odt, .ott, .oth, .odm, .odg, .otg, .odp, .otp, .ods, .ots, .odc, .odf, .odb, .odi, .oxt
-class OpenDocument extends Office {
+use OCP\Files\File;
+use OCP\IImage;
+
+class OpenDocument extends Bundled {
 	/**
 	 * {@inheritDoc}
 	 */
 	public function getMimeType(): string {
 		return '/application\/vnd.oasis.opendocument.*/';
 	}
+
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getThumbnail(File $file, int $maxX, int $maxY): ?IImage {
+		$image = $this->extractThumbnail($file, 'Thumbnails/thumbnail.png');
+		if ($image->valid()) {
+			return $image;
+		}
+		return null;
+	}
 }
diff --git a/lib/private/PreviewManager.php b/lib/private/PreviewManager.php
index 652a442dee..ab20ccdfbb 100644
--- a/lib/private/PreviewManager.php
+++ b/lib/private/PreviewManager.php
@@ -300,6 +300,7 @@ class PreviewManager implements IPreview {
 			Preview\MarkDown::class,
 			Preview\MP3::class,
 			Preview\TXT::class,
+			Preview\OpenDocument::class,
 		], $imageProviders));
 
 		if (in_array(Preview\Image::class, $this->defaultProviders)) {
@@ -340,6 +341,7 @@ class PreviewManager implements IPreview {
 		$this->registerCoreProvider(Preview\BMP::class, '/image\/bmp/');
 		$this->registerCoreProvider(Preview\XBitmap::class, '/image\/x-xbitmap/');
 		$this->registerCoreProvider(Preview\MP3::class, '/audio\/mpeg/');
+		$this->registerCoreProvider(Preview\OpenDocument::class, '/application\/vnd.oasis.opendocument.*/');
 
 		// SVG, Office and Bitmap require imagick
 		if (extension_loaded('imagick')) {