Use PreviewParameterProvider

libraries/ui-common/src/main/kotlin/io/element/android/libraries/ui/common/nodes/DurationPreviewParam.kt

@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2026 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.libraries.ui.common.nodes
+
+import androidx.compose.ui.tooling.preview.PreviewParameterProvider
+import kotlin.time.Duration
+import kotlin.time.Duration.Companion.seconds
+
+open class DurationPreviewParam : PreviewParameterProvider<Duration> {
+    override val values: Sequence<Duration>
+        get() = sequenceOf(
+            Duration.INFINITE,
+            1.seconds,
+        )
+}

libraries/ui-common/src/main/kotlin/io/element/android/libraries/ui/common/nodes/EmptyNode.kt

@@ -8,28 +8,10 @@
 
 package io.element.android.libraries.ui.common.nodes
 
-import androidx.compose.foundation.background
-import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.Box
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.runtime.Composable
-import androidx.compose.ui.Alignment
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.unit.dp
 import com.bumble.appyx.core.modality.BuildContext
 import com.bumble.appyx.core.node.Node
 import com.bumble.appyx.core.node.node
-import io.element.android.compound.theme.ElementTheme
-import io.element.android.libraries.designsystem.preview.ElementPreview
-import io.element.android.libraries.designsystem.preview.PreviewsDayNight
-import io.element.android.libraries.designsystem.theme.components.CircularProgressIndicator
-import io.element.android.libraries.designsystem.theme.components.Text
-import io.element.android.libraries.designsystem.utils.DelayedVisibility
-import io.element.android.libraries.ui.strings.CommonStrings
 import kotlin.time.Duration
-import kotlin.time.Duration.Companion.seconds
 
 /**
  * Ref: https://www.figma.com/design/0MMNu7cTOzLOlWb7ctTkv3/Element-X?node-id=1518-85323
@@ -48,45 +30,3 @@ fun emptyNode(
         modifier = modifier,
     )
 }
-
-@Composable
-private fun EmptyView(
-    delayBeforeShowingContent: Duration,
-    modifier: Modifier = Modifier,
-) = Box(
-    modifier = modifier
-        .fillMaxSize()
-        .background(ElementTheme.colors.bgCanvasDefault),
-    contentAlignment = Alignment.Center,
-) {
-    if (delayBeforeShowingContent.isFinite()) {
-        DelayedVisibility(duration = delayBeforeShowingContent) {
-            LoadingContent()
-        }
-    }
-}
-
-@Composable
-private fun LoadingContent() = Column(
-    horizontalAlignment = Alignment.CenterHorizontally,
-    verticalArrangement = Arrangement.spacedBy(16.dp),
-) {
-    CircularProgressIndicator()
-    Text(
-        text = stringResource(CommonStrings.common_loading),
-        color = ElementTheme.colors.textSecondary,
-        style = ElementTheme.typography.fontBodyMdRegular,
-    )
-}
-
-@PreviewsDayNight
-@Composable
-internal fun EmptyViewPreview() = ElementPreview {
-    EmptyView(delayBeforeShowingContent = Duration.INFINITE)
-}
-
-@PreviewsDayNight
-@Composable
-internal fun EmptyViewLoadingPreview() = ElementPreview {
-    EmptyView(delayBeforeShowingContent = 1.seconds)
-}

libraries/ui-common/src/main/kotlin/io/element/android/libraries/ui/common/nodes/EmptyView.kt

@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2026 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.libraries.ui.common.nodes
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.padding
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.PreviewParameter
+import androidx.compose.ui.unit.dp
+import io.element.android.compound.theme.ElementTheme
+import io.element.android.libraries.designsystem.preview.ElementPreview
+import io.element.android.libraries.designsystem.preview.PreviewsDayNight
+import io.element.android.libraries.designsystem.theme.components.CircularProgressIndicator
+import io.element.android.libraries.designsystem.theme.components.Text
+import io.element.android.libraries.designsystem.utils.DelayedVisibility
+import io.element.android.libraries.ui.strings.CommonStrings
+import kotlin.time.Duration
+
+@Composable
+fun EmptyView(
+    delayBeforeShowingContent: Duration,
+    modifier: Modifier = Modifier,
+) = Box(
+    modifier = modifier
+        .fillMaxSize()
+        .background(ElementTheme.colors.bgCanvasDefault),
+    contentAlignment = Alignment.Center,
+) {
+    if (delayBeforeShowingContent.isFinite()) {
+        DelayedVisibility(duration = delayBeforeShowingContent) {
+            LoadingContent()
+        }
+    }
+}
+
+@Composable
+private fun LoadingContent() = Column(
+    modifier = Modifier.padding(16.dp),
+    horizontalAlignment = Alignment.CenterHorizontally,
+    verticalArrangement = Arrangement.spacedBy(16.dp),
+) {
+    CircularProgressIndicator()
+    Text(
+        text = stringResource(CommonStrings.common_loading),
+        color = ElementTheme.colors.textSecondary,
+        style = ElementTheme.typography.fontBodyMdRegular,
+    )
+}
+
+@PreviewsDayNight
+@Composable
+internal fun EmptyViewPreview(
+    @PreviewParameter(DurationPreviewParam::class) duration: Duration
+) = ElementPreview {
+    EmptyView(delayBeforeShowingContent = duration)
+}