"View only" polls in the timeline (#1031)

* Handle poll events from the sdk

* Render started poll event in the timeline

* Create poll module

* Check poll kind before revealing the results

* Check if user has voted before revealing the results

* Add active poll previews

* Minor cleanup

* Update todos

* Fix CI

* Remove hardcoded string

* Update preview

* changelog file

* Update screenshots

* Use CommonPlurals

* Set poll root view as selectableGroup

* Improve poll result rendering

* Update screenshots

* Add missing showkase processor

* Update screenshots

---------

Co-authored-by: ElementBot <benoitm+elementbot@element.io>

changelog.d/1031.wip

@@ -0,0 +1 @@
+[Poll] Render start event in the timeline

features/messages/impl/build.gradle.kts

@@ -34,6 +34,7 @@ dependencies {
     anvil(projects.anvilcodegen)
     api(projects.features.messages.api)
     implementation(projects.features.location.api)
+    implementation(projects.features.poll.api)
     implementation(projects.libraries.androidutils)
     implementation(projects.libraries.core)
     implementation(projects.libraries.architecture)

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/MessagesPresenter.kt

@@ -47,6 +47,7 @@ import io.element.android.features.messages.impl.timeline.model.event.TimelineIt
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemFileContent
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemImageContent
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemLocationContent
+import io.element.android.features.messages.impl.timeline.model.event.TimelineItemPollContent
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemRedactedContent
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemStateContent
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemTextBasedContent
@@ -277,6 +278,7 @@ class MessagesPresenter @AssistedInject constructor(
             is TimelineItemLocationContent -> AttachmentThumbnailInfo(
                 type = AttachmentThumbnailType.Location,
             )
+            is TimelineItemPollContent, // TODO Polls: handle reply to
             is TimelineItemTextBasedContent,
             is TimelineItemRedactedContent,
             is TimelineItemStateContent,

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/actionlist/ActionListView.kt

@@ -62,6 +62,7 @@ import io.element.android.features.messages.impl.timeline.model.event.TimelineIt
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemFileContent
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemImageContent
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemLocationContent
+import io.element.android.features.messages.impl.timeline.model.event.TimelineItemPollContent
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemRedactedContent
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemStateContent
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemTextBasedContent
@@ -236,6 +237,7 @@ private fun MessageSummary(event: TimelineItem.Event, modifier: Modifier = Modif
     val textContent = remember(event.content) { formatter.format(event) }
 
     when (event.content) {
+        is TimelineItemPollContent, // TODO Polls: handle summary
         is TimelineItemTextBasedContent,
         is TimelineItemStateContent,
         is TimelineItemEncryptedContent,

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

@@ -25,6 +25,7 @@ import io.element.android.features.messages.impl.timeline.model.event.TimelineIt
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemFileContent
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemImageContent
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemLocationContent
+import io.element.android.features.messages.impl.timeline.model.event.TimelineItemPollContent
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemRedactedContent
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemStateContent
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemTextBasedContent
@@ -90,5 +91,10 @@ fun TimelineItemEventContentView(
             content = content,
             modifier = modifier
         )
+        is TimelineItemPollContent -> TimelineItemPollView(
+            content = content,
+            onAnswerSelected = {},
+            modifier = modifier,
+        )
     }
 }

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

@@ -0,0 +1,53 @@
+/*
+ * 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.features.messages.impl.timeline.components.event
+
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.tooling.preview.PreviewParameter
+import io.element.android.features.messages.impl.timeline.model.event.TimelineItemPollContent
+import io.element.android.features.messages.impl.timeline.model.event.TimelineItemPollContentProvider
+import io.element.android.features.poll.api.ActivePollContentView
+import io.element.android.libraries.designsystem.preview.DayNightPreviews
+import io.element.android.libraries.designsystem.preview.ElementPreview
+import io.element.android.libraries.matrix.api.poll.PollAnswer
+import kotlinx.collections.immutable.toImmutableList
+
+@Composable
+fun TimelineItemPollView(
+    content: TimelineItemPollContent,
+    onAnswerSelected: (PollAnswer) -> Unit,
+    modifier: Modifier = Modifier,
+) {
+    ActivePollContentView(
+        question = content.question,
+        answerItems = content.answerItems.toImmutableList(),
+        pollKind = content.pollKind,
+        onAnswerSelected = onAnswerSelected,
+        modifier = modifier,
+    )
+}
+
+@DayNightPreviews
+@Composable
+internal fun TimelineItemPollViewPreview(@PreviewParameter(TimelineItemPollContentProvider::class) content: TimelineItemPollContent) =
+    ElementPreview {
+        TimelineItemPollView(
+            content = content,
+            onAnswerSelected = {},
+        )
+    }

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/timeline/factories/event/TimelineItemContentFactory.kt

@@ -22,6 +22,8 @@ import io.element.android.libraries.matrix.api.timeline.item.event.EventTimeline
 import io.element.android.libraries.matrix.api.timeline.item.event.FailedToParseMessageLikeContent
 import io.element.android.libraries.matrix.api.timeline.item.event.FailedToParseStateContent
 import io.element.android.libraries.matrix.api.timeline.item.event.MessageContent
+import io.element.android.libraries.matrix.api.timeline.item.event.PollContent
+import io.element.android.libraries.matrix.api.timeline.item.event.PollEndContent
 import io.element.android.libraries.matrix.api.timeline.item.event.ProfileChangeContent
 import io.element.android.libraries.matrix.api.timeline.item.event.RedactedContent
 import io.element.android.libraries.matrix.api.timeline.item.event.RoomMembershipContent
@@ -35,6 +37,8 @@ class TimelineItemContentFactory @Inject constructor(
     private val messageFactory: TimelineItemContentMessageFactory,
     private val redactedMessageFactory: TimelineItemContentRedactedFactory,
     private val stickerFactory: TimelineItemContentStickerFactory,
+    private val pollFactory: TimelineItemContentPollFactory,
+    private val pollEndFactory: TimelineItemContentPollEndFactory,
     private val utdFactory: TimelineItemContentUTDFactory,
     private val roomMembershipFactory: TimelineItemContentRoomMembershipFactory,
     private val profileChangeFactory: TimelineItemContentProfileChangeFactory,
@@ -53,6 +57,8 @@ class TimelineItemContentFactory @Inject constructor(
             is RoomMembershipContent -> roomMembershipFactory.create(eventTimelineItem)
             is StateContent -> stateFactory.create(eventTimelineItem)
             is StickerContent -> stickerFactory.create(itemContent)
+            is PollContent -> pollFactory.create(itemContent)
+            is PollEndContent -> pollEndFactory.create(itemContent)
             is UnableToDecryptContent -> utdFactory.create(itemContent)
             is UnknownContent -> TimelineItemUnknownContent
         }

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/timeline/factories/event/TimelineItemContentPollEndFactory.kt

@@ -0,0 +1,29 @@
+/*
+ * 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.features.messages.impl.timeline.factories.event
+
+import io.element.android.features.messages.impl.timeline.model.event.TimelineItemEventContent
+import io.element.android.features.messages.impl.timeline.model.event.TimelineItemUnknownContent
+import io.element.android.libraries.matrix.api.timeline.item.event.PollEndContent
+import javax.inject.Inject
+
+class TimelineItemContentPollEndFactory @Inject constructor() {
+
+    fun create(@Suppress("UNUSED_PARAMETER") content: PollEndContent): TimelineItemEventContent {
+        return TimelineItemUnknownContent
+    }
+}

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/timeline/factories/event/TimelineItemContentPollFactory.kt

@@ -0,0 +1,56 @@
+/*
+ * 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.features.messages.impl.timeline.factories.event
+
+import io.element.android.features.messages.impl.timeline.model.event.TimelineItemEventContent
+import io.element.android.features.messages.impl.timeline.model.event.TimelineItemPollContent
+import io.element.android.features.poll.api.PollAnswerItem
+import io.element.android.libraries.matrix.api.MatrixClient
+import io.element.android.libraries.matrix.api.poll.PollKind
+import io.element.android.libraries.matrix.api.timeline.item.event.PollContent
+import javax.inject.Inject
+
+class TimelineItemContentPollFactory @Inject constructor(
+    private val matrixClient: MatrixClient,
+) {
+
+    fun create(content: PollContent): TimelineItemEventContent {
+        // Todo Move this computation to the matrix rust sdk
+        val showResults = content.kind == PollKind.Disclosed && matrixClient.sessionId in content.votes.flatMap { it.value }
+        val pollVotesCount = content.votes.flatMap { it.value }.size
+        val userVotes = content.votes.filter { matrixClient.sessionId in it.value }.keys
+        val answerItems = content.answers.map { answer ->
+            val votesCount = content.votes[answer.id]?.size ?: 0
+            val progress = if (pollVotesCount > 0) votesCount.toFloat() / pollVotesCount.toFloat() else 0f
+            PollAnswerItem(
+                answer = answer,
+                isSelected = answer.id in userVotes,
+                isDisclosed = showResults,
+                votesCount = votesCount,
+                progress = progress,
+            )
+        }
+
+        return TimelineItemPollContent(
+            question = content.question,
+            answerItems = answerItems,
+            votes = content.votes,
+            pollKind = content.kind,
+            isDisclosed = showResults
+        )
+    }
+}

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/timeline/groups/Groupability.kt

@@ -22,6 +22,7 @@ import io.element.android.features.messages.impl.timeline.model.event.TimelineIt
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemFileContent
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemImageContent
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemLocationContent
+import io.element.android.features.messages.impl.timeline.model.event.TimelineItemPollContent
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemProfileChangeContent
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemRedactedContent
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemRoomMembershipContent
@@ -33,6 +34,8 @@ import io.element.android.libraries.matrix.api.timeline.MatrixTimelineItem
 import io.element.android.libraries.matrix.api.timeline.item.event.FailedToParseMessageLikeContent
 import io.element.android.libraries.matrix.api.timeline.item.event.FailedToParseStateContent
 import io.element.android.libraries.matrix.api.timeline.item.event.MessageContent
+import io.element.android.libraries.matrix.api.timeline.item.event.PollContent
+import io.element.android.libraries.matrix.api.timeline.item.event.PollEndContent
 import io.element.android.libraries.matrix.api.timeline.item.event.ProfileChangeContent
 import io.element.android.libraries.matrix.api.timeline.item.event.RedactedContent
 import io.element.android.libraries.matrix.api.timeline.item.event.RoomMembershipContent
@@ -55,6 +58,7 @@ internal fun TimelineItem.Event.canBeGrouped(): Boolean {
         is TimelineItemVideoContent,
         is TimelineItemAudioContent,
         is TimelineItemLocationContent,
+        is TimelineItemPollContent,
         TimelineItemRedactedContent,
         TimelineItemUnknownContent -> false
         is TimelineItemProfileChangeContent,
@@ -74,6 +78,8 @@ internal fun MatrixTimelineItem.Event.canBeDisplayedInBubbleBlock(): Boolean {
         is MessageContent,
         RedactedContent,
         is StickerContent,
+        is PollContent,
+        is PollEndContent,
         is UnableToDecryptContent -> true
         is FailedToParseStateContent,
         is ProfileChangeContent,

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

@@ -45,6 +45,7 @@ fun TimelineItemEventContent.canReact(): Boolean =
         is TimelineItemFileContent,
         is TimelineItemImageContent,
         is TimelineItemLocationContent,
+        is TimelineItemPollContent,
         is TimelineItemVideoContent -> true
         is TimelineItemStateContent,
         is TimelineItemRedactedContent,

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

@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2022 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 io.element.android.features.poll.api.PollAnswerItem
+import io.element.android.libraries.matrix.api.core.UserId
+import io.element.android.libraries.matrix.api.poll.PollKind
+
+data class TimelineItemPollContent(
+    val question: String,
+    val answerItems: List<PollAnswerItem>,
+    val votes: Map<String, List<UserId>>,
+    val pollKind: PollKind,
+    val isDisclosed: Boolean,
+) : TimelineItemEventContent {
+    override val type: String = "TimelineItemPollContent"
+}

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

@@ -0,0 +1,39 @@
+/*
+ * 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.features.messages.impl.timeline.model.event
+
+import androidx.compose.ui.tooling.preview.PreviewParameterProvider
+import io.element.android.features.poll.api.aPollAnswerItemList
+import io.element.android.libraries.matrix.api.poll.PollKind
+
+open class TimelineItemPollContentProvider : PreviewParameterProvider<TimelineItemPollContent> {
+    override val values: Sequence<TimelineItemPollContent>
+        get() = sequenceOf(
+            aTimelineItemPollContent(),
+            aTimelineItemPollContent().copy(isDisclosed = true),
+        )
+}
+
+fun aTimelineItemPollContent(): TimelineItemPollContent {
+    return TimelineItemPollContent(
+        pollKind = PollKind.Disclosed,
+        isDisclosed = false,
+        question = "What type of food should we have at the party?",
+        answerItems = aPollAnswerItemList(),
+        votes = emptyMap(),
+    )
+}

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/utils/messagesummary/MessageSummaryFormatterImpl.kt

@@ -24,6 +24,7 @@ import io.element.android.features.messages.impl.timeline.model.event.TimelineIt
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemFileContent
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemImageContent
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemLocationContent
+import io.element.android.features.messages.impl.timeline.model.event.TimelineItemPollContent
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemProfileChangeContent
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemRedactedContent
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemStateContent
@@ -47,6 +48,7 @@ class MessageSummaryFormatterImpl @Inject constructor(
             is TimelineItemLocationContent -> context.getString(CommonStrings.common_shared_location)
             is TimelineItemEncryptedContent -> context.getString(CommonStrings.common_unable_to_decrypt)
             is TimelineItemRedactedContent -> context.getString(CommonStrings.common_message_removed)
+            is TimelineItemPollContent, // Todo Polls: handle summary
             is TimelineItemUnknownContent -> context.getString(CommonStrings.common_unsupported_event)
             is TimelineItemImageContent -> context.getString(CommonStrings.common_image)
             is TimelineItemVideoContent -> context.getString(CommonStrings.common_video)

features/messages/impl/src/test/kotlin/io/element/android/features/messages/fixtures/timelineItemsFactory.kt

@@ -21,6 +21,8 @@ import io.element.android.features.messages.impl.timeline.factories.event.Timeli
 import io.element.android.features.messages.impl.timeline.factories.event.TimelineItemContentFailedToParseMessageFactory
 import io.element.android.features.messages.impl.timeline.factories.event.TimelineItemContentFailedToParseStateFactory
 import io.element.android.features.messages.impl.timeline.factories.event.TimelineItemContentMessageFactory
+import io.element.android.features.messages.impl.timeline.factories.event.TimelineItemContentPollEndFactory
+import io.element.android.features.messages.impl.timeline.factories.event.TimelineItemContentPollFactory
 import io.element.android.features.messages.impl.timeline.factories.event.TimelineItemContentProfileChangeFactory
 import io.element.android.features.messages.impl.timeline.factories.event.TimelineItemContentRedactedFactory
 import io.element.android.features.messages.impl.timeline.factories.event.TimelineItemContentRoomMembershipFactory
@@ -42,6 +44,7 @@ import kotlinx.coroutines.test.TestScope
 
 internal fun TestScope.aTimelineItemsFactory(): TimelineItemsFactory {
     val timelineEventFormatter = aTimelineEventFormatter()
+    val matrixClient = FakeMatrixClient()
     return TimelineItemsFactory(
         dispatchers = testCoroutineDispatchers(),
         eventItemFactory = TimelineItemEventFactory(
@@ -49,6 +52,8 @@ internal fun TestScope.aTimelineItemsFactory(): TimelineItemsFactory {
                 messageFactory = TimelineItemContentMessageFactory(FakeFileSizeFormatter(), FileExtensionExtractorWithoutValidation()),
                 redactedMessageFactory = TimelineItemContentRedactedFactory(),
                 stickerFactory = TimelineItemContentStickerFactory(),
+                pollFactory = TimelineItemContentPollFactory(matrixClient),
+                pollEndFactory = TimelineItemContentPollEndFactory(),
                 utdFactory = TimelineItemContentUTDFactory(),
                 roomMembershipFactory = TimelineItemContentRoomMembershipFactory(timelineEventFormatter),
                 profileChangeFactory = TimelineItemContentProfileChangeFactory(timelineEventFormatter),
@@ -56,7 +61,7 @@ internal fun TestScope.aTimelineItemsFactory(): TimelineItemsFactory {
                 failedToParseMessageFactory = TimelineItemContentFailedToParseMessageFactory(),
                 failedToParseStateFactory = TimelineItemContentFailedToParseStateFactory()
             ),
-            matrixClient = FakeMatrixClient(),
+            matrixClient = matrixClient,
         ),
         virtualItemFactory = TimelineItemVirtualFactory(
             daySeparatorFactory = TimelineItemDaySeparatorFactory(

features/poll/api/build.gradle.kts

@@ -0,0 +1,35 @@
+/*
+ * 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.
+ */
+
+plugins {
+    id("io.element.android-compose-library")
+    alias(libs.plugins.ksp)
+}
+
+android {
+    namespace = "io.element.android.features.poll.api"
+}
+
+dependencies {
+    implementation(projects.libraries.architecture)
+    implementation(projects.libraries.designsystem)
+    implementation(projects.libraries.uiStrings)
+    implementation(libs.androidx.constraintlayout)
+    implementation(libs.androidx.constraintlayout.compose)
+    implementation(projects.libraries.matrix.api)
+
+    ksp(libs.showkase.processor)
+}

features/poll/api/src/main/kotlin/io/element/android/features/poll/api/ActivePollContentView.kt

@@ -0,0 +1,118 @@
+/*
+ * 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.features.poll.api
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.selection.selectableGroup
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.BarChart
+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 io.element.android.libraries.designsystem.preview.DayNightPreviews
+import io.element.android.libraries.designsystem.preview.ElementPreview
+import io.element.android.libraries.designsystem.theme.components.Icon
+import io.element.android.libraries.designsystem.theme.components.Text
+import io.element.android.libraries.matrix.api.poll.PollAnswer
+import io.element.android.libraries.matrix.api.poll.PollKind
+import io.element.android.libraries.theme.ElementTheme
+import io.element.android.libraries.ui.strings.CommonStrings
+import kotlinx.collections.immutable.ImmutableList
+
+@Composable
+fun ActivePollContentView(
+    question: String,
+    answerItems: ImmutableList<PollAnswerItem>,
+    pollKind: PollKind,
+    onAnswerSelected: (PollAnswer) -> Unit,
+    modifier: Modifier = Modifier,
+) {
+    val showResults = answerItems.any { it.isSelected }
+    Column(
+        modifier = modifier
+            .selectableGroup()
+            .fillMaxWidth(),
+        verticalArrangement = Arrangement.spacedBy(16.dp),
+    ) {
+        Row(
+            horizontalArrangement = Arrangement.spacedBy(4.dp),
+        ) {
+            Icon(imageVector = Icons.Default.BarChart, contentDescription = null)
+            Text(
+                text = question,
+                style = ElementTheme.typography.fontBodyLgMedium
+            )
+        }
+
+        answerItems.forEach { answerItem ->
+            PollAnswerView(
+                answerItem = answerItem,
+                onClick = { onAnswerSelected(answerItem.answer) }
+            )
+        }
+
+        val votesCount = answerItems.sumOf { it.votesCount }
+        when {
+            pollKind == PollKind.Undisclosed -> {
+                Text(
+                    modifier = Modifier
+                        .align(Alignment.Start)
+                        .padding(start = 32.dp),
+                    style = ElementTheme.typography.fontBodyXsRegular,
+                    color = ElementTheme.colors.textSecondary,
+                    text = stringResource(CommonStrings.common_poll_undisclosed_text),
+                )
+            }
+            showResults -> {
+                Text(
+                    modifier = Modifier.align(Alignment.End),
+                    style = ElementTheme.typography.fontBodyXsRegular,
+                    color = ElementTheme.colors.textSecondary,
+                    text = stringResource(CommonStrings.common_poll_total_votes, votesCount),
+                )
+            }
+        }
+    }
+}
+
+@DayNightPreviews
+@Composable
+internal fun ActivePollContentNoResultsPreview() = ElementPreview {
+    ActivePollContentView(
+        question = "What type of food should we have at the party?",
+        answerItems = aPollAnswerItemList(isDisclosed = false),
+        pollKind = PollKind.Undisclosed,
+        onAnswerSelected = { },
+    )
+}
+
+@DayNightPreviews
+@Composable
+internal fun ActivePollContentWithResultsPreview() = ElementPreview {
+    ActivePollContentView(
+        question = "What type of food should we have at the party?",
+        answerItems = aPollAnswerItemList(),
+        pollKind = PollKind.Disclosed,
+        onAnswerSelected = { },
+    )
+}

features/poll/api/src/main/kotlin/io/element/android/features/poll/api/PollAnswerItem.kt

@@ -0,0 +1,36 @@
+/*
+ * 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.features.poll.api
+
+import io.element.android.libraries.matrix.api.poll.PollAnswer
+
+/**
+ * UI model for a [PollAnswer].
+ *
+ * @property answer the poll answer.
+ * @property isSelected whether the user has selected this answer.
+ * @property isDisclosed whether the votes for this answer should be disclosed.
+ * @property votesCount the number of votes for this answer.
+ * @property progress the percentage of votes for this answer.
+ */
+data class PollAnswerItem(
+    val answer: PollAnswer,
+    val isSelected: Boolean,
+    val isDisclosed: Boolean,
+    val votesCount: Int,
+    val progress: Float,
+)

features/poll/api/src/main/kotlin/io/element/android/features/poll/api/PollAnswerView.kt

@@ -0,0 +1,125 @@
+/*
+ * 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.features.poll.api
+
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.wrapContentHeight
+import androidx.compose.foundation.selection.selectable
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.StrokeCap
+import androidx.compose.ui.res.pluralStringResource
+import androidx.compose.ui.semantics.Role
+import androidx.compose.ui.unit.dp
+import androidx.constraintlayout.compose.ConstraintLayout
+import androidx.constraintlayout.compose.Dimension
+import androidx.constraintlayout.compose.Visibility
+import io.element.android.libraries.designsystem.preview.DayNightPreviews
+import io.element.android.libraries.designsystem.preview.ElementPreview
+import io.element.android.libraries.designsystem.theme.components.LinearProgressIndicator
+import io.element.android.libraries.designsystem.theme.components.RadioButton
+import io.element.android.libraries.designsystem.theme.components.Text
+import io.element.android.libraries.theme.ElementTheme
+import io.element.android.libraries.ui.strings.CommonPlurals
+
+@Suppress("DestructuringDeclarationWithTooManyEntries") // This is necessary to declare the constraints ids
+@Composable
+fun PollAnswerView(
+    answerItem: PollAnswerItem,
+    onClick: () -> Unit,
+    modifier: Modifier = Modifier,
+) {
+    ConstraintLayout(
+        modifier
+            .wrapContentHeight()
+            .fillMaxWidth()
+            .selectable(
+                selected = answerItem.isSelected,
+                onClick = onClick,
+                role = Role.RadioButton,
+            )
+    ) {
+        val (radioButton, answerText, votesText, progressBar) = createRefs()
+        RadioButton(
+            modifier = Modifier.constrainAs(radioButton) {
+                top.linkTo(answerText.top)
+                bottom.linkTo(answerText.bottom)
+                start.linkTo(parent.start)
+                end.linkTo(answerText.start)
+            },
+            selected = answerItem.isSelected,
+            onClick = null // null recommended for accessibility with screenreaders
+        )
+        Text(
+            modifier = Modifier.constrainAs(answerText) {
+                width = Dimension.fillToConstraints
+                top.linkTo(parent.top)
+                start.linkTo(radioButton.end, margin = 8.dp)
+                end.linkTo(votesText.start)
+                bottom.linkTo(progressBar.top)
+            },
+            text = answerItem.answer.text,
+        )
+        Text(
+            modifier = Modifier.constrainAs(votesText) {
+                start.linkTo(answerText.end)
+                end.linkTo(parent.end)
+                bottom.linkTo(answerText.bottom)
+                visibility = if (answerItem.isDisclosed) Visibility.Visible else Visibility.Gone
+            },
+            text = pluralStringResource(
+                id = CommonPlurals.common_poll_votes_count,
+                count = answerItem.votesCount,
+                answerItem.votesCount
+            ),
+            style = ElementTheme.typography.fontBodySmRegular,
+            color = ElementTheme.colors.textSecondary,
+        )
+        LinearProgressIndicator(
+            progress = answerItem.progress,
+            modifier = Modifier
+                .constrainAs(progressBar) {
+                    start.linkTo(answerText.start)
+                    end.linkTo(votesText.end)
+                    top.linkTo(answerText.bottom, margin = 10.dp)
+                    bottom.linkTo(parent.bottom)
+                    width = Dimension.fillToConstraints
+                    visibility = if (answerItem.isDisclosed) Visibility.Visible else Visibility.Gone
+
+                },
+            strokeCap = StrokeCap.Round,
+        )
+    }
+}
+
+@DayNightPreviews
+@Composable
+internal fun PollAnswerViewNoResultsPreview() = ElementPreview {
+    PollAnswerView(
+        answerItem = aPollAnswerItem(),
+        onClick = { },
+    )
+}
+
+@DayNightPreviews
+@Composable
+internal fun PollAnswerViewWithResultPreview() = ElementPreview {
+    PollAnswerView(
+        answerItem = aPollAnswerItem(isDisclosed = true),
+        onClick = { }
+    )
+}

features/poll/api/src/main/kotlin/io/element/android/features/poll/api/PollAnswerViewProvider.kt

@@ -0,0 +1,60 @@
+/*
+ * 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.features.poll.api
+
+import io.element.android.libraries.matrix.api.poll.PollAnswer
+import kotlinx.collections.immutable.persistentListOf
+
+fun aPollAnswerItemList(isDisclosed: Boolean = true) = persistentListOf(
+    aPollAnswerItem(
+        answer = PollAnswer("option_1", "Italian \uD83C\uDDEE\uD83C\uDDF9"),
+        isDisclosed = isDisclosed,
+        votesCount = 5,
+        progress = 0.5f
+    ),
+    aPollAnswerItem(
+        answer = PollAnswer("option_2", "Chinese \uD83C\uDDE8\uD83C\uDDF3"),
+        isDisclosed = isDisclosed,
+        votesCount = 0,
+        progress = 0f
+    ),
+    aPollAnswerItem(
+        answer = PollAnswer("option_3", "Brazilian \uD83C\uDDE7\uD83C\uDDF7"),
+        isDisclosed = isDisclosed,
+        isSelected = true,
+        votesCount = 1,
+        progress = 0.1f
+    ),
+    aPollAnswerItem(isDisclosed = isDisclosed),
+)
+
+fun aPollAnswerItem(
+    answer: PollAnswer = PollAnswer(
+        "option_4",
+        "French \uD83C\uDDEB\uD83C\uDDF7 But make it a very very very long option then this should just keep expanding"
+    ),
+    isSelected: Boolean = false,
+    isDisclosed: Boolean = true,
+    votesCount: Int = 4,
+    progress: Float = 0.4f,
+) = PollAnswerItem(
+    answer = answer,
+    isSelected = isSelected,
+    isDisclosed = isDisclosed,
+    votesCount = votesCount,
+    progress = progress
+)

features/poll/api/src/main/kotlin/io/element/android/features/poll/api/PollEntryPoint.kt

@@ -0,0 +1,37 @@
+/*
+ * 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.features.poll.api
+
+import com.bumble.appyx.core.modality.BuildContext
+import com.bumble.appyx.core.node.Node
+import com.bumble.appyx.core.plugin.Plugin
+import io.element.android.libraries.architecture.FeatureEntryPoint
+
+interface PollEntryPoint : FeatureEntryPoint {
+
+    fun nodeBuilder(parentNode: Node, buildContext: BuildContext): NodeBuilder
+
+    interface NodeBuilder {
+        fun callback(callback: Callback): NodeBuilder
+        fun build(): Node
+    }
+
+    interface Callback : Plugin {
+        // Add your callbacks
+    }
+}
+

features/poll/impl/build.gradle.kts

@@ -0,0 +1,52 @@
+/*
+ * 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.
+ */
+
+// TODO: Remove once https://youtrack.jetbrains.com/issue/KTIJ-19369 is fixed
+@Suppress("DSL_SCOPE_VIOLATION")
+plugins {
+    id("io.element.android-compose-library")
+    alias(libs.plugins.anvil)
+    alias(libs.plugins.ksp)
+    id("kotlin-parcelize")
+}
+
+android {
+    namespace = "io.element.android.features.poll.impl"
+}
+
+anvil {
+    generateDaggerFactories.set(true)
+}
+
+dependencies {
+    implementation(projects.anvilannotations)
+    anvil(projects.anvilcodegen)
+    api(projects.features.poll.api)
+    implementation(projects.libraries.core)
+    implementation(projects.libraries.architecture)
+    implementation(projects.libraries.matrix.api)
+    implementation(projects.libraries.matrixui)
+    implementation(projects.libraries.designsystem)
+
+    testImplementation(libs.test.junit)
+    testImplementation(libs.coroutines.test)
+    testImplementation(libs.molecule.runtime)
+    testImplementation(libs.test.truth)
+    testImplementation(libs.test.turbine)
+    testImplementation(projects.libraries.matrix.test)
+
+    ksp(libs.showkase.processor)
+}

features/poll/impl/src/main/kotlin/io/element/android/features/poll/impl/DefaultPollEntryPoint.kt

@@ -0,0 +1,46 @@
+/*
+ * 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.features.poll.impl
+
+import com.bumble.appyx.core.modality.BuildContext
+import com.bumble.appyx.core.node.Node
+import com.bumble.appyx.core.plugin.Plugin
+import com.squareup.anvil.annotations.ContributesBinding
+import io.element.android.features.poll.api.PollEntryPoint
+import io.element.android.libraries.architecture.createNode
+import io.element.android.libraries.di.AppScope
+import javax.inject.Inject
+
+@ContributesBinding(AppScope::class)
+class DefaultPollEntryPoint @Inject constructor() : PollEntryPoint {
+
+    override fun nodeBuilder(parentNode: Node, buildContext: BuildContext): PollEntryPoint.NodeBuilder {
+        val plugins = ArrayList<Plugin>()
+
+        return object : PollEntryPoint.NodeBuilder {
+
+            override fun callback(callback: PollEntryPoint.Callback): PollEntryPoint.NodeBuilder {
+                plugins += callback
+                return this
+            }
+
+            override fun build(): Node {
+                return parentNode.createNode<PollFlowNode>(buildContext, plugins)
+            }
+        }
+    }
+}

features/poll/impl/src/main/kotlin/io/element/android/features/poll/impl/PollFlowNode.kt

@@ -0,0 +1,70 @@
+/*
+ * 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.features.poll.impl
+
+import android.os.Parcelable
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import com.bumble.appyx.core.composable.Children
+import com.bumble.appyx.core.modality.BuildContext
+import com.bumble.appyx.core.node.Node
+import com.bumble.appyx.core.plugin.Plugin
+import com.bumble.appyx.navmodel.backstack.BackStack
+import dagger.assisted.Assisted
+import dagger.assisted.AssistedInject
+import io.element.android.anvilannotations.ContributesNode
+import io.element.android.libraries.architecture.BackstackNode
+import io.element.android.libraries.architecture.animation.rememberDefaultTransitionHandler
+import io.element.android.libraries.architecture.createNode
+import io.element.android.libraries.di.SessionScope
+import kotlinx.parcelize.Parcelize
+
+@ContributesNode(SessionScope::class)
+class PollFlowNode @AssistedInject constructor(
+    @Assisted buildContext: BuildContext,
+    @Assisted plugins: List<Plugin>,
+) : BackstackNode<PollFlowNode.NavTarget>(
+    backstack = BackStack(
+        initialElement = NavTarget.Root,
+        savedStateMap = buildContext.savedStateMap,
+    ),
+    buildContext = buildContext,
+    plugins = plugins,
+) {
+
+    sealed interface NavTarget : Parcelable {
+        @Parcelize
+        object Root : NavTarget
+    }
+
+    override fun resolve(navTarget: NavTarget, buildContext: BuildContext): Node {
+        return when (navTarget) {
+            NavTarget.Root -> {
+                createNode(buildContext)
+            }
+        }
+    }
+
+    @Composable
+    override fun View(modifier: Modifier) {
+        Children(
+            navModel = backstack,
+            modifier = modifier,
+            transitionHandler = rememberDefaultTransitionHandler(),
+        )
+    }
+}

libraries/designsystem/src/main/kotlin/io/element/android/libraries/designsystem/theme/components/LinearProgressIndicator.kt

@@ -0,0 +1,90 @@
+/*
+ * 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.theme.components
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.material3.ProgressIndicatorDefaults
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.StrokeCap
+import androidx.compose.ui.platform.LocalInspectionMode
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import io.element.android.libraries.designsystem.preview.ElementThemedPreview
+import io.element.android.libraries.designsystem.preview.PreviewGroup
+
+@Composable
+fun LinearProgressIndicator(
+    progress: Float,
+    modifier: Modifier = Modifier,
+    color: Color = ProgressIndicatorDefaults.linearColor,
+    trackColor: Color = ProgressIndicatorDefaults.linearTrackColor,
+    strokeCap: StrokeCap = ProgressIndicatorDefaults.LinearStrokeCap,
+) {
+    androidx.compose.material3.LinearProgressIndicator(
+        modifier = modifier,
+        progress = progress,
+        color = color,
+        trackColor = trackColor,
+        strokeCap = strokeCap,
+    )
+}
+
+@Composable
+fun LinearProgressIndicator(
+    modifier: Modifier = Modifier,
+    color: Color = ProgressIndicatorDefaults.linearColor,
+    trackColor: Color = ProgressIndicatorDefaults.linearTrackColor,
+    strokeCap: StrokeCap = ProgressIndicatorDefaults.LinearStrokeCap,
+) {
+    if (LocalInspectionMode.current) {
+        // Use a determinate progress indicator to improve the preview rendering
+        androidx.compose.material3.LinearProgressIndicator(
+            modifier = modifier,
+            progress = 0.75F,
+            color = color,
+            trackColor = trackColor,
+            strokeCap = strokeCap,
+        )
+    } else {
+        androidx.compose.material3.LinearProgressIndicator(
+            modifier = modifier,
+            color = color,
+            trackColor = trackColor,
+            strokeCap = strokeCap,
+        )
+    }
+}
+
+@Preview(group = PreviewGroup.Progress)
+@Composable
+internal fun LinearProgressIndicatorPreview() = ElementThemedPreview(vertical = false) { ContentToPreview() }
+
+@Composable
+private fun ContentToPreview() {
+    Column(verticalArrangement = Arrangement.spacedBy(4.dp)) {
+        // Indeterminate progress
+        LinearProgressIndicator(
+        )
+        // Fixed progress
+        LinearProgressIndicator(
+            progress = 0.90F
+        )
+    }
+}

libraries/eventformatter/impl/src/main/kotlin/io/element/android/libraries/eventformatter/impl/DefaultRoomLastMessageFormatter.kt

@@ -37,6 +37,8 @@ import io.element.android.libraries.matrix.api.timeline.item.event.LocationMessa
 import io.element.android.libraries.matrix.api.timeline.item.event.MessageContent
 import io.element.android.libraries.matrix.api.timeline.item.event.MessageType
 import io.element.android.libraries.matrix.api.timeline.item.event.NoticeMessageType
+import io.element.android.libraries.matrix.api.timeline.item.event.PollContent
+import io.element.android.libraries.matrix.api.timeline.item.event.PollEndContent
 import io.element.android.libraries.matrix.api.timeline.item.event.ProfileChangeContent
 import io.element.android.libraries.matrix.api.timeline.item.event.ProfileTimelineDetails
 import io.element.android.libraries.matrix.api.timeline.item.event.RedactedContent
@@ -94,6 +96,7 @@ class DefaultRoomLastMessageFormatter @Inject constructor(
             is StateContent -> {
                 stateContentFormatter.format(content, senderDisplayName, isOutgoing, RenderingMode.RoomList)
             }
+            is PollContent, is PollEndContent, // TODO Polls: handle last message
             is FailedToParseMessageLikeContent, is FailedToParseStateContent, is UnknownContent -> {
                 prefixIfNeeded(sp.getString(CommonStrings.common_unsupported_event), senderDisplayName, isDmRoom)
             }

libraries/eventformatter/impl/src/main/kotlin/io/element/android/libraries/eventformatter/impl/DefaultTimelineEventFormatter.kt

@@ -26,6 +26,8 @@ import io.element.android.libraries.matrix.api.timeline.item.event.EventTimeline
 import io.element.android.libraries.matrix.api.timeline.item.event.FailedToParseMessageLikeContent
 import io.element.android.libraries.matrix.api.timeline.item.event.FailedToParseStateContent
 import io.element.android.libraries.matrix.api.timeline.item.event.MessageContent
+import io.element.android.libraries.matrix.api.timeline.item.event.PollContent
+import io.element.android.libraries.matrix.api.timeline.item.event.PollEndContent
 import io.element.android.libraries.matrix.api.timeline.item.event.ProfileChangeContent
 import io.element.android.libraries.matrix.api.timeline.item.event.ProfileTimelineDetails
 import io.element.android.libraries.matrix.api.timeline.item.event.RedactedContent
@@ -63,6 +65,8 @@ class DefaultTimelineEventFormatter @Inject constructor(
             }
             RedactedContent,
             is StickerContent,
+            is PollContent,
+            is PollEndContent,
             is UnableToDecryptContent,
             is MessageContent,
             is FailedToParseMessageLikeContent,

libraries/matrix/api/src/main/kotlin/io/element/android/libraries/matrix/api/poll/PollAnswer.kt

@@ -0,0 +1,22 @@
+/*
+ * 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.matrix.api.poll
+
+data class PollAnswer(
+    val id: String,
+    val text: String
+)

libraries/matrix/api/src/main/kotlin/io/element/android/libraries/matrix/api/poll/PollKind.kt

@@ -0,0 +1,24 @@
+/*
+ * 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.matrix.api.poll
+
+enum class PollKind {
+    /** Voters should see results as soon as they have voted. */
+    Disclosed,
+
+    /** Results should be only revealed when the poll is ended. */
+    Undisclosed
+}

libraries/matrix/api/src/main/kotlin/io/element/android/libraries/matrix/api/timeline/item/event/EventContent.kt

@@ -23,6 +23,8 @@ import io.element.android.libraries.matrix.api.media.FileInfo
 import io.element.android.libraries.matrix.api.media.ImageInfo
 import io.element.android.libraries.matrix.api.media.MediaSource
 import io.element.android.libraries.matrix.api.media.VideoInfo
+import io.element.android.libraries.matrix.api.poll.PollAnswer
+import io.element.android.libraries.matrix.api.poll.PollKind
 
 sealed interface EventContent
 
@@ -69,6 +71,19 @@ data class StickerContent(
     val url: String
 ) : EventContent
 
+data class PollContent(
+    val question: String,
+    val kind: PollKind,
+    val maxSelections: ULong,
+    val answers: List<PollAnswer>,
+    val votes: Map<String, List<UserId>>,
+    val endTime: ULong?
+) : EventContent
+
+data class PollEndContent(
+    val startEventId: String
+) : EventContent
+
 data class UnableToDecryptContent(
     val data: Data
 ) : EventContent {

libraries/matrix/impl/src/main/kotlin/io/element/android/libraries/matrix/impl/poll/PollAnswer.kt

@@ -0,0 +1,25 @@
+/*
+ * 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.matrix.impl.poll
+
+import io.element.android.libraries.matrix.api.poll.PollAnswer
+import org.matrix.rustcomponents.sdk.PollAnswer as RustPollAnswer
+
+fun RustPollAnswer.map(): PollAnswer = PollAnswer(
+    id = id,
+    text = text,
+)

libraries/matrix/impl/src/main/kotlin/io/element/android/libraries/matrix/impl/poll/PollKind.kt

@@ -0,0 +1,25 @@
+/*
+ * 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.matrix.impl.poll
+
+import io.element.android.libraries.matrix.api.poll.PollKind
+import org.matrix.rustcomponents.sdk.PollKind as RustPollKind
+
+fun RustPollKind.map(): PollKind = when (this) {
+    RustPollKind.DISCLOSED -> PollKind.Disclosed
+    RustPollKind.UNDISCLOSED -> PollKind.Undisclosed
+}

libraries/matrix/impl/src/main/kotlin/io/element/android/libraries/matrix/impl/timeline/item/event/TimelineEventContentMapper.kt

@@ -22,6 +22,8 @@ import io.element.android.libraries.matrix.api.timeline.item.event.FailedToParse
 import io.element.android.libraries.matrix.api.timeline.item.event.FailedToParseStateContent
 import io.element.android.libraries.matrix.api.timeline.item.event.MembershipChange
 import io.element.android.libraries.matrix.api.timeline.item.event.OtherState
+import io.element.android.libraries.matrix.api.timeline.item.event.PollContent
+import io.element.android.libraries.matrix.api.timeline.item.event.PollEndContent
 import io.element.android.libraries.matrix.api.timeline.item.event.ProfileChangeContent
 import io.element.android.libraries.matrix.api.timeline.item.event.RedactedContent
 import io.element.android.libraries.matrix.api.timeline.item.event.RoomMembershipContent
@@ -30,6 +32,7 @@ import io.element.android.libraries.matrix.api.timeline.item.event.StickerConten
 import io.element.android.libraries.matrix.api.timeline.item.event.UnableToDecryptContent
 import io.element.android.libraries.matrix.api.timeline.item.event.UnknownContent
 import io.element.android.libraries.matrix.impl.media.map
+import io.element.android.libraries.matrix.impl.poll.map
 import org.matrix.rustcomponents.sdk.TimelineItemContent
 import org.matrix.rustcomponents.sdk.TimelineItemContentKind
 import org.matrix.rustcomponents.sdk.EncryptedMessage as RustEncryptedMessage
@@ -91,6 +94,21 @@ class TimelineEventContentMapper(private val eventMessageMapper: EventMessageMap
                     url = kind.url,
                 )
             }
+            is TimelineItemContentKind.Poll -> {
+                PollContent(
+                    question = kind.question,
+                    kind = kind.kind.map(),
+                    maxSelections = kind.maxSelections,
+                    answers = kind.answers.map { answer -> answer.map() },
+                    votes = kind.votes.mapValues { vote ->
+                        vote.value.map { userId -> UserId(userId) }
+                    },
+                    endTime = kind.endTime,
+                )
+            }
+            is TimelineItemContentKind.PollEnd -> {
+                PollEndContent(startEventId = kind.startEventId)
+            }
             is TimelineItemContentKind.UnableToDecrypt -> {
                 UnableToDecryptContent(
                     data = kind.msg.map()

tests/uitests/src/test/snapshots/images/io.element.android.tests.uitests_ScreenshotTest_preview_tests[io.element.android.features.messages.impl.timeline.components.event_null_DefaultGroup_TimelineItemPollViewPreview-D-13_14_null_0,NEXUS_5,1.0,en].png

@@ -0,0 +1,3 @@
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