Add some previews.

libraries/designsystem/src/main/kotlin/io/element/android/libraries/designsystem/components/preferences/components/ImageVectorProvider.kt

@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2023 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.libraries.designsystem.components.preferences.components
+
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.BugReport
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.tooling.preview.PreviewParameterProvider
+
+open class ImageVectorProvider : PreviewParameterProvider<ImageVector?> {
+    override val values: Sequence<ImageVector?>
+        get() = sequenceOf(
+            null,
+            Icons.Default.BugReport,
+        )
+}

libraries/designsystem/src/main/kotlin/io/element/android/libraries/designsystem/components/preferences/components/PreferenceIcon.kt

@@ -22,7 +22,11 @@ import androidx.compose.foundation.layout.width
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.tooling.preview.PreviewParameter
 import androidx.compose.ui.unit.dp
+import io.element.android.libraries.designsystem.preview.ElementPreviewDark
+import io.element.android.libraries.designsystem.preview.ElementPreviewLight
 import io.element.android.libraries.designsystem.theme.components.Icon
 import io.element.android.libraries.designsystem.toEnabledColor
 
@@ -45,3 +49,18 @@ fun PreferenceIcon(
         Spacer(modifier = modifier.width(56.dp))
     }
 }
+
+@Preview
+@Composable
+internal fun PreferenceIconLightPreview(@PreviewParameter(ImageVectorProvider::class) content: ImageVector?) =
+    ElementPreviewLight { ContentToPreview(content) }
+
+@Preview
+@Composable
+internal fun PreferenceIconDarkPreview(@PreviewParameter(ImageVectorProvider::class) content: ImageVector?) =
+    ElementPreviewDark { ContentToPreview(content) }
+
+@Composable
+private fun ContentToPreview(content: ImageVector?) {
+    PreferenceIcon(content)
+}