Add indicators in room list for sending event and errors.

features/home/impl/src/main/kotlin/io/element/android/features/home/impl/components/RoomSummaryRow.kt

@@ -40,6 +40,7 @@ import androidx.compose.ui.zIndex
 import io.element.android.compound.theme.ElementTheme
 import io.element.android.compound.tokens.generated.CompoundIcons
 import io.element.android.features.home.impl.R
+import io.element.android.features.home.impl.model.LatestEvent
 import io.element.android.features.home.impl.model.RoomListRoomSummary
 import io.element.android.features.home.impl.model.RoomListRoomSummaryProvider
 import io.element.android.features.home.impl.model.RoomSummaryDisplayType
@@ -120,6 +121,7 @@ internal fun RoomSummaryRow(
                 ) {
                     NameAndTimestampRow(
                         name = room.name,
+                        latestEvent = room.latestEvent,
                         timestamp = room.timestamp,
                         isHighlighted = room.isHighlighted
                     )
@@ -136,6 +138,7 @@ internal fun RoomSummaryRow(
                 ) {
                     NameAndTimestampRow(
                         name = room.name,
+                        latestEvent = room.latestEvent,
                         timestamp = null,
                         isHighlighted = room.isHighlighted
                     )
@@ -211,6 +214,7 @@ private fun RoomSummaryScaffoldRow(
 @Composable
 private fun NameAndTimestampRow(
     name: String?,
+    latestEvent: LatestEvent,
     timestamp: String?,
     isHighlighted: Boolean,
     modifier: Modifier = Modifier
@@ -218,10 +222,13 @@ private fun NameAndTimestampRow(
     Row(
         modifier = modifier.fillMaxWidth(),
         horizontalArrangement = spacedBy(16.dp)
+    ) {
+        Row(
+            modifier = Modifier.weight(1f),
+            verticalAlignment = Alignment.CenterVertically,
         ) {
             // Name
             Text(
-            modifier = Modifier.weight(1f),
                 style = ElementTheme.typography.fontBodyLgMedium,
                 text = name ?: stringResource(id = CommonStrings.common_no_room_name),
                 fontStyle = FontStyle.Italic.takeIf { name == null },
@@ -229,6 +236,29 @@ private fun NameAndTimestampRow(
                 maxLines = 1,
                 overflow = TextOverflow.Ellipsis
             )
+            // Picto
+            when (latestEvent) {
+                is LatestEvent.Sending -> {
+                    Spacer(modifier = Modifier.width(4.dp))
+                    Icon(
+                        modifier = Modifier.size(16.dp),
+                        imageVector = CompoundIcons.Time(),
+                        contentDescription = null,
+                        tint = ElementTheme.colors.iconTertiary,
+                    )
+                }
+                is LatestEvent.Error -> {
+                    Spacer(modifier = Modifier.width(4.dp))
+                    Icon(
+                        modifier = Modifier.size(16.dp),
+                        imageVector = CompoundIcons.ErrorSolid(),
+                        contentDescription = null,
+                        tint = ElementTheme.colors.iconCriticalPrimary,
+                    )
+                }
+                else -> Unit
+            }
+        }
         // Timestamp
         Text(
             text = timestamp ?: "",
@@ -274,12 +304,30 @@ private fun MessagePreviewAndIndicatorRow(
         modifier = modifier.fillMaxWidth(),
         horizontalArrangement = spacedBy(28.dp)
     ) {
-        val messagePreview = if (room.isTombstoned) {
+        if (room.isTombstoned) {
-            stringResource(R.string.screen_roomlist_tombstoned_room_description)
+            Text(
+                modifier = Modifier.weight(1f),
+                text = stringResource(R.string.screen_roomlist_tombstoned_room_description),
+                color = ElementTheme.colors.roomListRoomMessage,
+                style = ElementTheme.typography.fontBodyMdRegular,
+                minLines = 2,
+                maxLines = 2,
+                overflow = TextOverflow.Ellipsis,
+            )
         } else {
-            room.latestEvent.orEmpty()
+            if (room.latestEvent is LatestEvent.Error) {
-        }
+                Text(
-        val annotatedMessagePreview = messagePreview as? AnnotatedString ?: AnnotatedString(text = messagePreview.toString())
+                    modifier = Modifier.weight(1f),
+                    text = stringResource(CommonStrings.common_message_failed_to_send),
+                    color = ElementTheme.colors.textCriticalPrimary,
+                    style = ElementTheme.typography.fontBodyMdRegular,
+                    minLines = 2,
+                    maxLines = 2,
+                    overflow = TextOverflow.Ellipsis,
+                )
+            } else {
+                val messagePreview = room.latestEvent.content()
+                val annotatedMessagePreview = messagePreview as? AnnotatedString ?: AnnotatedString(text = messagePreview.orEmpty().toString())
                 Text(
                     modifier = Modifier.weight(1f),
                     text = annotatedMessagePreview,
@@ -287,8 +335,10 @@ private fun MessagePreviewAndIndicatorRow(
                     style = ElementTheme.typography.fontBodyMdRegular,
                     minLines = 2,
                     maxLines = 2,
-            overflow = TextOverflow.Ellipsis
+                    overflow = TextOverflow.Ellipsis,
                 )
+            }
+        }
 
         // Call and unread
         Row(

features/home/impl/src/main/kotlin/io/element/android/features/home/impl/datasource/RoomListRoomSummaryFactory.kt

@@ -9,6 +9,7 @@
 package io.element.android.features.home.impl.datasource
 
 import dev.zacsweers.metro.Inject
+import io.element.android.features.home.impl.model.LatestEvent
 import io.element.android.features.home.impl.model.RoomListRoomSummary
 import io.element.android.features.home.impl.model.RoomSummaryDisplayType
 import io.element.android.libraries.core.extensions.orEmpty
@@ -18,6 +19,7 @@ import io.element.android.libraries.designsystem.components.avatar.AvatarSize
 import io.element.android.libraries.eventformatter.api.RoomLatestEventFormatter
 import io.element.android.libraries.matrix.api.room.CurrentUserMembership
 import io.element.android.libraries.matrix.api.room.isDm
+import io.element.android.libraries.matrix.api.roomlist.LatestEventValue
 import io.element.android.libraries.matrix.api.roomlist.RoomSummary
 import io.element.android.libraries.matrix.ui.model.getAvatarData
 import io.element.android.libraries.matrix.ui.model.toInviteSender
@@ -44,7 +46,7 @@ class RoomListRoomSummaryFactory(
                 mode = DateFormatterMode.TimeOrDate,
                 useRelative = true,
             ),
-            latestEvent = roomLatestEventFormatter.format(roomSummary.latestEvent, roomInfo.isDm).orEmpty(),
+            latestEvent = computeLatestEvent(roomSummary.latestEvent, roomInfo.isDm),
             avatarData = avatarData,
             userDefinedNotificationMode = roomInfo.userDefinedNotificationMode,
             hasRoomCall = roomInfo.hasRoomCall,
@@ -71,4 +73,28 @@ class RoomListRoomSummaryFactory(
             isSpace = roomInfo.isSpace,
         )
     }
+
+    private fun computeLatestEvent(latestEvent: LatestEventValue, dm: Boolean): LatestEvent {
+        return when (latestEvent) {
+            is LatestEventValue.None -> {
+                LatestEvent.None
+            }
+            is LatestEventValue.Local -> {
+                if (latestEvent.isSending) {
+                    val content = roomLatestEventFormatter.format(latestEvent, dm).orEmpty()
+                    LatestEvent.Sending(
+                        content = content,
+                    )
+                } else {
+                    LatestEvent.Error
+                }
+            }
+            is LatestEventValue.Remote -> {
+                val content = roomLatestEventFormatter.format(latestEvent, dm).orEmpty()
+                LatestEvent.Regular(
+                    content = content,
+                )
+            }
+        }
+    }
 }

features/home/impl/src/main/kotlin/io/element/android/features/home/impl/model/LatestEvent.kt

@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2025 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.features.home.impl.model
+
+import androidx.compose.runtime.Immutable
+
+@Immutable
+sealed interface LatestEvent {
+    data object None : LatestEvent
+
+    data class Regular(
+        val content: CharSequence?,
+    ) : LatestEvent
+
+    data class Sending(
+        val content: CharSequence?,
+    ) : LatestEvent
+
+    data object Error : LatestEvent
+
+    fun content(): CharSequence? {
+        return when (this) {
+            is None -> null
+            is Regular -> content
+            is Sending -> content
+            is Error -> null
+        }
+    }
+}

features/home/impl/src/main/kotlin/io/element/android/features/home/impl/model/RoomListRoomSummary.kt

@@ -29,7 +29,7 @@ data class RoomListRoomSummary(
     val numberOfUnreadNotifications: Long,
     val isMarkedUnread: Boolean,
     val timestamp: String?,
-    val latestEvent: CharSequence?,
+    val latestEvent: LatestEvent,
     val avatarData: AvatarData,
     val userDefinedNotificationMode: RoomNotificationMode?,
     val hasRoomCall: Boolean,

features/home/impl/src/main/kotlin/io/element/android/features/home/impl/model/RoomListRoomSummaryProvider.kt

@@ -25,12 +25,14 @@ open class RoomListRoomSummaryProvider : PreviewParameterProvider<RoomListRoomSu
                 aRoomListRoomSummary(displayType = RoomSummaryDisplayType.PLACEHOLDER),
                 aRoomListRoomSummary(),
                 aRoomListRoomSummary(name = null),
-                aRoomListRoomSummary(lastMessage = null),
+                aRoomListRoomSummary(latestEvent = LatestEvent.None),
                 aRoomListRoomSummary(
                     name = "A very long room name that should be truncated",
-                    lastMessage = "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt" +
+                    latestEvent = LatestEvent.Regular(
+                        "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt" +
                             " ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea com" +
-                        "modo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.",
+                            "modo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur."
+                    ),
                     timestamp = "yesterday",
                     numberOfUnreadMessages = 1,
                 ),
@@ -44,7 +46,7 @@ open class RoomListRoomSummaryProvider : PreviewParameterProvider<RoomListRoomSu
                     listOf(
                         aRoomListRoomSummary(
                             name = roomNotificationMode.name,
-                            lastMessage = "No activity" + if (hasCall) ", call" else "",
+                            latestEvent = LatestEvent.Regular("No activity" + if (hasCall) ", call" else ""),
                             notificationMode = roomNotificationMode,
                             numberOfUnreadMessages = 0,
                             numberOfUnreadMentions = 0,
@@ -52,7 +54,7 @@ open class RoomListRoomSummaryProvider : PreviewParameterProvider<RoomListRoomSu
                         ),
                         aRoomListRoomSummary(
                             name = roomNotificationMode.name,
-                            lastMessage = "New messages" + if (hasCall) ", call" else "",
+                            latestEvent = LatestEvent.Regular("New messages" + if (hasCall) ", call" else ""),
                             notificationMode = roomNotificationMode,
                             numberOfUnreadMessages = 1,
                             numberOfUnreadMentions = 0,
@@ -60,7 +62,7 @@ open class RoomListRoomSummaryProvider : PreviewParameterProvider<RoomListRoomSu
                         ),
                         aRoomListRoomSummary(
                             name = roomNotificationMode.name,
-                            lastMessage = "New messages, mentions" + if (hasCall) ", call" else "",
+                            latestEvent = LatestEvent.Regular("New messages, mentions" + if (hasCall) ", call" else ""),
                             notificationMode = roomNotificationMode,
                             numberOfUnreadMessages = 1,
                             numberOfUnreadMentions = 1,
@@ -68,7 +70,7 @@ open class RoomListRoomSummaryProvider : PreviewParameterProvider<RoomListRoomSu
                         ),
                         aRoomListRoomSummary(
                             name = roomNotificationMode.name,
-                            lastMessage = "New mentions" + if (hasCall) ", call" else "",
+                            latestEvent = LatestEvent.Regular("New mentions" + if (hasCall) ", call" else ""),
                             notificationMode = roomNotificationMode,
                             numberOfUnreadMessages = 0,
                             numberOfUnreadMentions = 1,
@@ -127,6 +129,10 @@ open class RoomListRoomSummaryProvider : PreviewParameterProvider<RoomListRoomSu
                     isTombstoned = true,
                 )
             ),
+            listOf(
+                aRoomListRoomSummary(latestEvent = LatestEvent.Sending("A sending message")),
+                aRoomListRoomSummary(latestEvent = LatestEvent.Error),
+            )
         ).flatten()
 }
 
@@ -148,8 +154,8 @@ internal fun aRoomListRoomSummary(
     numberOfUnreadMentions: Long = 0,
     numberOfUnreadNotifications: Long = 0,
     isMarkedUnread: Boolean = false,
-    lastMessage: String? = "Last message",
+    latestEvent: LatestEvent = LatestEvent.Regular("Last message"),
-    timestamp: String? = lastMessage?.let { "88:88" },
+    timestamp: String? = latestEvent.takeIf { it !is LatestEvent.None }?.let { "88:88" },
     notificationMode: RoomNotificationMode? = null,
     hasRoomCall: Boolean = false,
     avatarData: AvatarData = AvatarData(id, name, size = AvatarSize.RoomListItem),
@@ -171,7 +177,7 @@ internal fun aRoomListRoomSummary(
     numberOfUnreadNotifications = numberOfUnreadNotifications,
     isMarkedUnread = isMarkedUnread,
     timestamp = timestamp,
-    latestEvent = lastMessage,
+    latestEvent = latestEvent,
     avatarData = avatarData,
     userDefinedNotificationMode = notificationMode,
     hasRoomCall = hasRoomCall,

features/home/impl/src/main/kotlin/io/element/android/features/home/impl/roomlist/RoomListStateProvider.kt

@@ -11,6 +11,7 @@ package io.element.android.features.home.impl.roomlist
 import androidx.compose.ui.tooling.preview.PreviewParameterProvider
 import io.element.android.features.home.impl.filters.RoomListFiltersState
 import io.element.android.features.home.impl.filters.aRoomListFiltersState
+import io.element.android.features.home.impl.model.LatestEvent
 import io.element.android.features.home.impl.model.RoomListRoomSummary
 import io.element.android.features.home.impl.model.RoomSummaryDisplayType
 import io.element.android.features.home.impl.model.aRoomListRoomSummary
@@ -88,7 +89,7 @@ internal fun aRoomListRoomSummaryList(): ImmutableList<RoomListRoomSummary> {
             name = "Room",
             numberOfUnreadMessages = 1,
             timestamp = "14:18",
-            lastMessage = "A very very very very long message which suites on two lines",
+            latestEvent = LatestEvent.Regular("A very very very very long message which suites on two lines"),
             avatarData = AvatarData("!id", "R", size = AvatarSize.RoomListItem),
             id = "!roomId:domain",
         ),
@@ -96,7 +97,7 @@ internal fun aRoomListRoomSummaryList(): ImmutableList<RoomListRoomSummary> {
             name = "Room#2",
             numberOfUnreadMessages = 0,
             timestamp = "14:16",
-            lastMessage = "A short message",
+            latestEvent = LatestEvent.Regular("A short message"),
             avatarData = AvatarData("!id", "Z", size = AvatarSize.RoomListItem),
             id = "!roomId2:domain",
         ),
@@ -119,7 +120,7 @@ internal fun generateRoomListRoomSummaryList(
             name = "Room#$index",
             numberOfUnreadMessages = 0,
             timestamp = "14:16",
-            lastMessage = "A message",
+            latestEvent = LatestEvent.Regular("A message"),
             avatarData = AvatarData("!id$index", "${(65 + index % 26).toChar()}", size = AvatarSize.RoomListItem),
             id = "!roomId$index:domain",
         )

features/home/impl/src/test/kotlin/io/element/android/features/home/impl/model/RoomListBaseRoomSummaryTest.kt

@@ -96,7 +96,7 @@ internal fun createRoomListRoomSummary(
     numberOfUnreadNotifications = numberOfUnreadNotifications,
     isMarkedUnread = isMarkedUnread,
     timestamp = timestamp,
-    latestEvent = "",
+    latestEvent = LatestEvent.Regular(""),
     avatarData = AvatarData(id = A_ROOM_ID.value, name = A_ROOM_NAME, size = AvatarSize.RoomListItem),
     displayType = displayType,
     userDefinedNotificationMode = userDefinedNotificationMode,

features/home/impl/src/test/kotlin/io/element/android/features/home/impl/roomlist/RoomListViewTest.kt

@@ -170,7 +170,7 @@ class RoomListViewTest {
             // Remove automatic initial events
             eventsRecorder.clear()
 
-            rule.onNodeWithText(room0.latestEvent!!.toString()).performClick()
+            rule.onNodeWithText(room0.latestEvent.content().toString()).performClick()
         }
 
         eventsRecorder.assertEmpty()
@@ -192,7 +192,7 @@ class RoomListViewTest {
             )
             // Remove automatic initial events
             eventsRecorder.clear()
-            rule.onNodeWithText(room0.latestEvent!!.toString())
+            rule.onNodeWithText(room0.latestEvent.content().toString())
                 .performClick()
                 .performClick()
         }
@@ -214,7 +214,7 @@ class RoomListViewTest {
         // Remove automatic initial events
         eventsRecorder.clear()
 
-        rule.onNodeWithText(room0.latestEvent!!.toString()).performTouchInput { longClick() }
+        rule.onNodeWithText(room0.latestEvent.content().toString()).performTouchInput { longClick() }
         eventsRecorder.assertSingle(RoomListEvents.ShowContextMenu(room0))
     }
 

libraries/ui-strings/src/main/res/values/localazy.xml

@@ -246,6 +246,7 @@ Reason: %1$s."</string>
   </plurals>
   <string name="common_message">"Message"</string>
   <string name="common_message_actions">"Message actions"</string>
+  <string name="common_message_failed_to_send">"Message failed to send"</string>
   <string name="common_message_layout">"Message layout"</string>
   <string name="common_message_removed">"Message removed"</string>
   <string name="common_modern">"Modern"</string>