Pinned events : start branching sdk data in the banner.

features/messages/impl/build.gradle.kts

@@ -102,5 +102,6 @@ dependencies {
     testImplementation(projects.features.poll.test)
     testImplementation(projects.features.poll.impl)
     testImplementation(libs.androidx.compose.ui.test.junit)
+    testImplementation(projects.libraries.eventformatter.test)
     testReleaseImplementation(libs.androidx.compose.ui.test.manifest)
 }

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

@@ -73,6 +73,7 @@ import io.element.android.features.messages.impl.messagecomposer.AttachmentsStat
 import io.element.android.features.messages.impl.messagecomposer.MessageComposerEvents
 import io.element.android.features.messages.impl.messagecomposer.MessageComposerView
 import io.element.android.features.messages.impl.pinned.banner.PinnedMessagesBannerView
+import io.element.android.features.messages.impl.timeline.TimelineEvents
 import io.element.android.features.messages.impl.timeline.TimelineView
 import io.element.android.features.messages.impl.timeline.components.JoinCallMenuItem
 import io.element.android.features.messages.impl.timeline.components.customreaction.CustomReactionBottomSheet
@@ -401,6 +402,9 @@ private fun MessagesViewContent(
                     ) {
                         PinnedMessagesBannerView(
                             state = state.pinnedMessagesBannerState,
+                            onClick = { pinnedEventId ->
+                                //state.timelineState.eventSink(TimelineEvents.FocusOnEvent(pinnedEventId))
+                            },
                         )
                     }
                 }

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

@@ -22,9 +22,9 @@ import dagger.Module
 import io.element.android.features.messages.impl.pinned.banner.PinnedMessagesBannerPresenter
 import io.element.android.features.messages.impl.pinned.banner.PinnedMessagesBannerState
 import io.element.android.libraries.architecture.Presenter
-import io.element.android.libraries.di.SessionScope
+import io.element.android.libraries.di.RoomScope
 
-@ContributesTo(SessionScope::class)
+@ContributesTo(RoomScope::class)
 @Module
 interface MessagesModule {
     @Binds

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/pinned/banner/PinnedMessagesBannerItem.kt

@@ -0,0 +1,25 @@
+/*
+ * 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
+ *
+ *     https://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.pinned.banner
+
+import androidx.compose.ui.text.AnnotatedString
+import io.element.android.libraries.matrix.api.core.EventId
+
+data class PinnedMessagesBannerItem(
+    val eventId: EventId,
+    val formatted: AnnotatedString,
+)

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/pinned/banner/PinnedMessagesBannerPresenter.kt

@@ -17,28 +17,86 @@
 package io.element.android.features.messages.impl.pinned.banner
 
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableIntStateOf
+import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.runtime.setValue
+import androidx.compose.ui.text.AnnotatedString
 import io.element.android.libraries.architecture.Presenter
+import io.element.android.libraries.eventformatter.api.PinnedMessagesBannerFormatter
+import io.element.android.libraries.matrix.api.room.MatrixRoom
+import io.element.android.libraries.matrix.api.timeline.MatrixTimelineItem
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.FlowPreview
+import kotlinx.coroutines.flow.debounce
+import kotlinx.coroutines.flow.flowOn
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.onCompletion
+import kotlinx.coroutines.flow.onEach
 import javax.inject.Inject
+import kotlin.time.Duration.Companion.milliseconds
 
-class PinnedMessagesBannerPresenter @Inject constructor() : Presenter<PinnedMessagesBannerState> {
+class PinnedMessagesBannerPresenter @Inject constructor(
+    private val room: MatrixRoom,
+    private val pinnedMessagesBannerFormatter: PinnedMessagesBannerFormatter,
+) : Presenter<PinnedMessagesBannerState> {
+
+    @OptIn(FlowPreview::class)
     @Composable
     override fun present(): PinnedMessagesBannerState {
-        var pinnedMessageCount by remember {
+        var pinnedMessages by remember {
-            mutableIntStateOf(0)
+            mutableStateOf<List<PinnedMessagesBannerItem>>(emptyList())
         }
         var currentPinnedMessageIndex by rememberSaveable {
             mutableIntStateOf(0)
         }
+        LaunchedEffect(pinnedMessages) {
+            val pinnedMessageCount = pinnedMessages.size
+            if (currentPinnedMessageIndex >= pinnedMessageCount) {
+                currentPinnedMessageIndex = (pinnedMessageCount - 1).coerceAtLeast(0)
+            }
+        }
+
+        LaunchedEffect(Unit) {
+            val pinnedEventsTimeline = room.pinnedEventsTimeline().getOrNull() ?: return@LaunchedEffect
+            pinnedEventsTimeline.timelineItems
+                .debounce(300.milliseconds)
+                .map { timelineItems ->
+                    timelineItems.mapNotNull { timelineItem ->
+                        when (timelineItem) {
+                            is MatrixTimelineItem.Event -> {
+                                val eventId = timelineItem.eventId ?: return@mapNotNull null
+                                val formatted = pinnedMessagesBannerFormatter.format(timelineItem.event)
+                                PinnedMessagesBannerItem(
+                                    eventId = eventId,
+                                    formatted = if (formatted is AnnotatedString) {
+                                        formatted
+                                    } else {
+                                        AnnotatedString(formatted.toString())
+                                    },
+                                )
+                            }
+                            else -> null
+                        }
+                    }
+                }
+                .flowOn(Dispatchers.Default)
+                .onEach { newPinnedMessages ->
+                    pinnedMessages = newPinnedMessages
+                }.onCompletion {
+                    pinnedEventsTimeline.close()
+                }
+                .launchIn(this)
+        }
 
         fun handleEvent(event: PinnedMessagesBannerEvents) {
             when (event) {
                 is PinnedMessagesBannerEvents.MoveToNextPinned -> {
-                    if (currentPinnedMessageIndex < pinnedMessageCount - 1) {
+                    if (currentPinnedMessageIndex < pinnedMessages.size - 1) {
                         currentPinnedMessageIndex++
                     } else {
                         currentPinnedMessageIndex = 0
@@ -48,7 +106,8 @@ class PinnedMessagesBannerPresenter @Inject constructor() : Presenter<PinnedMess
         }
 
         return PinnedMessagesBannerState(
-            pinnedMessagesCount = pinnedMessageCount,
+            pinnedMessagesCount = pinnedMessages.size,
+            currentPinnedMessage = pinnedMessages.getOrNull(currentPinnedMessageIndex),
             currentPinnedMessageIndex = currentPinnedMessageIndex,
             eventSink = ::handleEvent
         )

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/pinned/banner/PinnedMessagesBannerState.kt

@@ -19,7 +19,8 @@ package io.element.android.features.messages.impl.pinned.banner
 data class PinnedMessagesBannerState(
     val pinnedMessagesCount: Int,
     val currentPinnedMessageIndex: Int,
+    val currentPinnedMessage: PinnedMessagesBannerItem?,
     val eventSink: (PinnedMessagesBannerEvents) -> Unit
 ) {
-    val displayBanner = pinnedMessagesCount > 0 && currentPinnedMessageIndex < pinnedMessagesCount
+    val displayBanner = pinnedMessagesCount > 0 && currentPinnedMessage != null
 }

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/pinned/banner/PinnedMessagesBannerStateProvider.kt

@@ -16,7 +16,10 @@
 
 package io.element.android.features.messages.impl.pinned.banner
 
+import androidx.compose.ui.text.AnnotatedString
 import androidx.compose.ui.tooling.preview.PreviewParameterProvider
+import io.element.android.libraries.matrix.api.core.EventId
+import kotlin.random.Random
 
 internal class PinnedMessagesBannerStateProvider : PreviewParameterProvider<PinnedMessagesBannerState> {
     override val values: Sequence<PinnedMessagesBannerState>
@@ -33,9 +36,14 @@ internal class PinnedMessagesBannerStateProvider : PreviewParameterProvider<Pinn
 internal fun aPinnedMessagesBannerState(
     pinnedMessagesCount: Int = 0,
     currentPinnedMessageIndex: Int = -1,
+    currentPinnedMessage: PinnedMessagesBannerItem = PinnedMessagesBannerItem(
+        eventId = EventId("\$" + Random.nextInt().toString()),
+        formatted = AnnotatedString("This is a pinned message")
+    ),
     eventSink: (PinnedMessagesBannerEvents) -> Unit = {}
 ) = PinnedMessagesBannerState(
     pinnedMessagesCount = pinnedMessagesCount,
     currentPinnedMessageIndex = currentPinnedMessageIndex,
+    currentPinnedMessage = currentPinnedMessage,
     eventSink = eventSink
 )

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/pinned/banner/PinnedMessagesBannerView.kt

@@ -16,6 +16,7 @@
 
 package io.element.android.features.messages.impl.pinned.banner
 
+import androidx.compose.animation.AnimatedVisibility
 import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement.spacedBy
@@ -32,8 +33,6 @@ import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
-import androidx.compose.runtime.derivedStateOf
-import androidx.compose.runtime.getValue
 import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
@@ -42,6 +41,7 @@ import androidx.compose.ui.draw.shadow
 import androidx.compose.ui.geometry.Offset
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.AnnotatedString
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.tooling.preview.PreviewParameter
 import androidx.compose.ui.unit.dp
@@ -55,13 +55,17 @@ import io.element.android.libraries.designsystem.theme.components.TextButton
 import io.element.android.libraries.designsystem.theme.pinnedMessageBannerBorder
 import io.element.android.libraries.designsystem.theme.pinnedMessageBannerIndicator
 import io.element.android.libraries.designsystem.utils.annotatedTextWithBold
+import io.element.android.libraries.matrix.api.core.EventId
 import io.element.android.libraries.ui.strings.CommonStrings
 
 @Composable
 fun PinnedMessagesBannerView(
     state: PinnedMessagesBannerState,
+    onClick: (EventId) -> Unit,
     modifier: Modifier = Modifier,
 ) {
+    if (state.currentPinnedMessage == null) return
+
     val borderColor = ElementTheme.colors.pinnedMessageBannerBorder
     Row(
         modifier = modifier
@@ -86,6 +90,7 @@ fun PinnedMessagesBannerView(
             .shadow(elevation = 5.dp, spotColor = Color.Transparent)
             .heightIn(min = 64.dp)
             .clickable {
+                onClick(state.currentPinnedMessage.eventId)
                 state.eventSink(PinnedMessagesBannerEvents.MoveToNextPinned)
             },
         verticalAlignment = Alignment.CenterVertically,
@@ -106,7 +111,7 @@ fun PinnedMessagesBannerView(
         PinnedMessageItem(
             index = state.currentPinnedMessageIndex,
             totalCount = state.pinnedMessagesCount,
-            message = "This is a pinned message",
+            message = state.currentPinnedMessage.formatted,
             modifier = Modifier.weight(1f)
         )
         TextButton(text = stringResource(id = CommonStrings.screen_room_pinned_banner_view_all_button_title), onClick = { /*TODO*/ })
@@ -119,8 +124,7 @@ private fun PinIndicators(
     pinsCount: Int,
     modifier: Modifier = Modifier,
 ) {
-    val indicatorHeight by remember {
+    val indicatorHeight = remember(pinsCount) {
-        derivedStateOf {
         when (pinsCount) {
             0 -> 0
             1 -> 32
@@ -128,7 +132,6 @@ private fun PinIndicators(
             else -> 11
         }
     }
-    }
     val lazyListState = rememberLazyListState()
     LaunchedEffect(pinIndex) {
         val viewportSize = lazyListState.layoutInfo.viewportSize
@@ -141,7 +144,8 @@ private fun PinIndicators(
         modifier = modifier,
         state = lazyListState,
         verticalArrangement = spacedBy(2.dp),
-        userScrollEnabled = false
+        userScrollEnabled = false,
+        reverseLayout = true
     ) {
         items(pinsCount) { index ->
             Box(
@@ -164,13 +168,13 @@ private fun PinIndicators(
 private fun PinnedMessageItem(
     index: Int,
     totalCount: Int,
-    message: String,
+    message: AnnotatedString,
     modifier: Modifier = Modifier,
 ) {
     val countMessage = stringResource(id = CommonStrings.screen_room_pinned_banner_indicator, index + 1, totalCount)
     val fullCountMessage = stringResource(id = CommonStrings.screen_room_pinned_banner_indicator_description, countMessage)
     Column(modifier = modifier) {
-        if (totalCount > 1) {
+        AnimatedVisibility (totalCount > 1) {
             Text(
                 text = annotatedTextWithBold(
                     text = fullCountMessage,
@@ -179,6 +183,7 @@ private fun PinnedMessageItem(
                 style = ElementTheme.typography.fontBodySmMedium,
                 color = ElementTheme.colors.textActionAccent,
                 maxLines = 1,
+                overflow = TextOverflow.Ellipsis,
             )
         }
         Text(
@@ -196,5 +201,6 @@ private fun PinnedMessageItem(
 internal fun PinnedMessagesBannerViewPreview(@PreviewParameter(PinnedMessagesBannerStateProvider::class) state: PinnedMessagesBannerState) = ElementPreview {
     PinnedMessagesBannerView(
         state = state,
+        onClick = {},
     )
 }

features/messages/impl/src/test/kotlin/io/element/android/features/messages/impl/pinned/banner/PinnedMessagesBannerPresenterTest.kt

@@ -17,6 +17,10 @@
 package io.element.android.features.messages.impl.pinned.banner
 
 import com.google.common.truth.Truth.assertThat
+import io.element.android.libraries.eventformatter.api.PinnedMessagesBannerFormatter
+import io.element.android.libraries.eventformatter.test.FakePinnedMessagesBannerFormatter
+import io.element.android.libraries.matrix.api.room.MatrixRoom
+import io.element.android.libraries.matrix.test.room.FakeMatrixRoom
 import io.element.android.tests.testutils.test
 import kotlinx.coroutines.test.runTest
 import org.junit.Test
@@ -29,6 +33,7 @@ class PinnedMessagesBannerPresenterTest {
             val initialState = awaitItem()
             assertThat(initialState.pinnedMessagesCount).isEqualTo(0)
             assertThat(initialState.currentPinnedMessageIndex).isEqualTo(0)
+            assertThat(initialState.currentPinnedMessage).isNull()
         }
     }
 
@@ -43,7 +48,15 @@ class PinnedMessagesBannerPresenterTest {
         }
     }
 
-    private fun createPinnedMessagesBannerPresenter(): PinnedMessagesBannerPresenter {
+    private fun createPinnedMessagesBannerPresenter(
-        return PinnedMessagesBannerPresenter()
+        room: MatrixRoom = FakeMatrixRoom(),
+        formatter: PinnedMessagesBannerFormatter = FakePinnedMessagesBannerFormatter(
+            formatLambda = { event -> "Content ${event.content}" }
+        )
+    ): PinnedMessagesBannerPresenter {
+        return PinnedMessagesBannerPresenter(
+            room = room,
+            pinnedMessagesBannerFormatter = formatter
+        )
     }
 }

libraries/eventformatter/test/src/main/kotlin/io/element/android/libraries/eventformatter/test/FakePinnedMessagesBannerFormatter.kt

@@ -0,0 +1,28 @@
+/*
+ * 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
+ *
+ *     https://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.eventformatter.test
+
+import io.element.android.libraries.eventformatter.api.PinnedMessagesBannerFormatter
+import io.element.android.libraries.matrix.api.timeline.item.event.EventTimelineItem
+
+class FakePinnedMessagesBannerFormatter(
+    val formatLambda: (event: EventTimelineItem) -> CharSequence
+) : PinnedMessagesBannerFormatter {
+    override fun format(event: EventTimelineItem): CharSequence {
+        return formatLambda(event)
+    }
+}