feat: Add mimetype into BeforePreviewFetchedEvent event

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

lib/private/Preview/Generator.php

@@ -80,6 +80,7 @@ class Generator {
 			$height,
 			$crop,
 			$mode,
+			$mimeType,
 		));
 
 		// since we only ask for one preview, and the generate method return the last one it created, it returns the one we want

lib/public/Preview/BeforePreviewFetchedEvent.php

@@ -17,6 +17,7 @@ use OCP\IPreview;
  *
  * @since 25.0.1
  * @since 28.0.0 the constructor arguments ``$width``, ``$height``, ``$crop`` and ``$mode`` are no longer nullable.
+ * @since 31.0.0 the constructor arguments ``$mimeType`` was added
  */
 class BeforePreviewFetchedEvent extends \OCP\EventDispatcher\Event {
 	/**
@@ -24,14 +25,15 @@ class BeforePreviewFetchedEvent extends \OCP\EventDispatcher\Event {
 	 */
 	public function __construct(
 		private Node $node,
-		/** @deprecated 28.0.0 null deprecated **/
+		/** @deprecated 28.0.0 passing null is deprecated **/
 		private ?int $width = null,
-		/** @deprecated 28.0.0 null deprecated **/
+		/** @deprecated 28.0.0 passing null is null deprecated **/
 		private ?int $height = null,
-		/** @deprecated 28.0.0 null deprecated **/
+		/** @deprecated 28.0.0 passing null is null deprecated **/
 		private ?bool $crop = null,
-		/** @deprecated 28.0.0 null deprecated **/
+		/** @deprecated 28.0.0 passing null is null deprecated **/
 		private ?string $mode = null,
+		private ?string $mimeType = null,
 	) {
 		parent::__construct();
 	}
@@ -71,4 +73,11 @@ class BeforePreviewFetchedEvent extends \OCP\EventDispatcher\Event {
 	public function getMode(): ?string {
 		return $this->mode;
 	}
+
+	/**
+	 * @since 31.0.0
+	 */
+	public function getMimeType(): ?string {
+		return $this->mimeType;
+	}
 }

tests/lib/Preview/GeneratorTest.php

@@ -91,7 +91,7 @@ class GeneratorTest extends \Test\TestCase {
 
 		$this->eventDispatcher->expects($this->once())
 			->method('dispatchTyped')
-			->with(new BeforePreviewFetchedEvent($file, 100, 100, false, IPreview::MODE_FILL));
+			->with(new BeforePreviewFetchedEvent($file, 100, 100, false, IPreview::MODE_FILL, null));
 
 		$result = $this->generator->getPreview($file, 100, 100);
 		$this->assertSame($previewFile, $result);
@@ -219,7 +219,7 @@ class GeneratorTest extends \Test\TestCase {
 
 		$this->eventDispatcher->expects($this->once())
 			->method('dispatchTyped')
-			->with(new BeforePreviewFetchedEvent($file, 100, 100, false, IPreview::MODE_FILL));
+			->with(new BeforePreviewFetchedEvent($file, 100, 100, false, IPreview::MODE_FILL, null));
 
 		$result = $this->generator->getPreview($file, 100, 100);
 		$this->assertSame($previewFile, $result);
@@ -258,7 +258,7 @@ class GeneratorTest extends \Test\TestCase {
 
 		$this->eventDispatcher->expects($this->once())
 			->method('dispatchTyped')
-			->with(new BeforePreviewFetchedEvent($file, 1024, 512, true, IPreview::MODE_COVER));
+			->with(new BeforePreviewFetchedEvent($file, 1024, 512, true, IPreview::MODE_COVER, 'invalidType'));
 
 		$this->generator->getPreview($file, 1024, 512, true, IPreview::MODE_COVER, 'invalidType');
 	}
@@ -295,7 +295,7 @@ class GeneratorTest extends \Test\TestCase {
 
 		$this->eventDispatcher->expects($this->once())
 			->method('dispatchTyped')
-			->with(new BeforePreviewFetchedEvent($file, 1024, 512, true, IPreview::MODE_COVER));
+			->with(new BeforePreviewFetchedEvent($file, 1024, 512, true, IPreview::MODE_COVER, 'invalidType'));
 
 		$result = $this->generator->getPreview($file, 1024, 512, true, IPreview::MODE_COVER, 'invalidType');
 		$this->assertSame($preview, $result);
@@ -323,7 +323,7 @@ class GeneratorTest extends \Test\TestCase {
 
 		$this->eventDispatcher->expects($this->once())
 			->method('dispatchTyped')
-			->with(new BeforePreviewFetchedEvent($file, 100, 100, false, IPreview::MODE_FILL));
+			->with(new BeforePreviewFetchedEvent($file, 100, 100, false, IPreview::MODE_FILL, null));
 
 		$this->expectException(NotFoundException::class);
 		$this->generator->getPreview($file, 100, 100);
@@ -448,7 +448,7 @@ class GeneratorTest extends \Test\TestCase {
 
 		$this->eventDispatcher->expects($this->once())
 			->method('dispatchTyped')
-			->with(new BeforePreviewFetchedEvent($file, $reqX, $reqY, $crop, $mode));
+			->with(new BeforePreviewFetchedEvent($file, $reqX, $reqY, $crop, $mode, null));
 
 		$result = $this->generator->getPreview($file, $reqX, $reqY, $crop, $mode);
 		if ($expectedX === $maxX && $expectedY === $maxY) {