Create proper PreviewParameterProvider for TimelineItemEncryptedContent

And remove `@Suppress("UNUSED_PARAMETER")`

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/timeline/components/event/TimelineItemEncryptedView.kt

@@ -16,12 +16,13 @@
 
 package io.element.android.features.messages.impl.timeline.components.event
 
-import androidx.compose.foundation.layout.Column
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.PreviewParameter
 import io.element.android.features.messages.impl.timeline.components.layout.ContentAvoidingLayoutData
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemEncryptedContent
+import io.element.android.features.messages.impl.timeline.model.event.TimelineItemEncryptedContentProvider
 import io.element.android.libraries.designsystem.icons.CompoundDrawables
 import io.element.android.libraries.designsystem.preview.ElementPreview
 import io.element.android.libraries.designsystem.preview.PreviewsDayNight
@@ -31,7 +32,7 @@ import io.element.android.libraries.ui.strings.CommonStrings
 
 @Composable
 fun TimelineItemEncryptedView(
-    @Suppress("UNUSED_PARAMETER") content: TimelineItemEncryptedContent,
+    content: TimelineItemEncryptedContent,
     onContentLayoutChanged: (ContentAvoidingLayoutData) -> Unit,
     modifier: Modifier = Modifier
 ) {
@@ -53,23 +54,11 @@ fun TimelineItemEncryptedView(
 
 @PreviewsDayNight
 @Composable
-internal fun TimelineItemEncryptedViewPreview() = ElementPreview {
-    Column {
-        TimelineItemEncryptedView(
-            content = TimelineItemEncryptedContent(
-                data = UnableToDecryptContent.Data.Unknown
-            ),
-            onContentLayoutChanged = {},
-        )
-
-        TimelineItemEncryptedView(
-            content = TimelineItemEncryptedContent(
-                data = UnableToDecryptContent.Data.MegolmV1AesSha2(
-                    sessionId = "sessionId",
-                    utdCause = UtdCause.Membership
-                )
-            ),
-            onContentLayoutChanged = {},
-        )
-    }
+internal fun TimelineItemEncryptedViewPreview(
+    @PreviewParameter(TimelineItemEncryptedContentProvider::class) content: TimelineItemEncryptedContent
+) = ElementPreview {
+    TimelineItemEncryptedView(
+        content = content,
+        onContentLayoutChanged = {},
+    )
 }

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/timeline/model/event/TimelineItemEncryptedContentProvider.kt

@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2024 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.element.android.features.messages.impl.timeline.model.event
+
+import androidx.compose.ui.tooling.preview.PreviewParameterProvider
+import io.element.android.libraries.matrix.api.timeline.item.event.UnableToDecryptContent
+import io.element.android.libraries.matrix.api.timeline.item.event.UtdCause
+
+open class TimelineItemEncryptedContentProvider : PreviewParameterProvider<TimelineItemEncryptedContent> {
+    override val values: Sequence<TimelineItemEncryptedContent>
+        get() = sequenceOf(
+            aTimelineItemEncryptedContent(),
+            aTimelineItemEncryptedContent(
+                data = UnableToDecryptContent.Data.MegolmV1AesSha2(
+                    sessionId = "sessionId",
+                    utdCause = UtdCause.Membership
+                )
+            ),
+        )
+}
+
+private fun aTimelineItemEncryptedContent(
+    data: UnableToDecryptContent.Data = UnableToDecryptContent.Data.Unknown
+) = TimelineItemEncryptedContent(
+    data = data
+)