Highlight user's reactions in message actions menu (#778)

Part of #342
---------

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

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

@@ -19,6 +19,7 @@ package io.element.android.features.messages.impl.actionlist
 import androidx.compose.ui.tooling.preview.PreviewParameterProvider
 import io.element.android.features.messages.impl.actionlist.model.TimelineItemAction
 import io.element.android.features.messages.impl.timeline.aTimelineItemEvent
+import io.element.android.features.messages.impl.timeline.aTimelineItemReactions
 import io.element.android.features.messages.impl.timeline.model.event.aTimelineItemFileContent
 import io.element.android.features.messages.impl.timeline.model.event.aTimelineItemImageContent
 import io.element.android.features.messages.impl.timeline.model.event.aTimelineItemLocationContent
@@ -28,47 +29,62 @@ import kotlinx.collections.immutable.persistentListOf
 
 open class ActionListStateProvider : PreviewParameterProvider<ActionListState> {
     override val values: Sequence<ActionListState>
-        get() = sequenceOf(
+        get() {
+            val reactionsState = aTimelineItemReactions(1, isHighlighted = true)
+            return sequenceOf(
                 anActionListState(),
                 anActionListState().copy(target = ActionListState.Target.Loading(aTimelineItemEvent())),
                 anActionListState().copy(
                     target = ActionListState.Target.Success(
-                    event = aTimelineItemEvent(),
+                        event = aTimelineItemEvent().copy(
+                            reactionsState = reactionsState
+                        ),
                         actions = aTimelineItemActionList(),
                     )
                 ),
                 anActionListState().copy(
                     target = ActionListState.Target.Success(
-                    event = aTimelineItemEvent(content = aTimelineItemImageContent()),
+                        event = aTimelineItemEvent(content = aTimelineItemImageContent()).copy(
+                            reactionsState = reactionsState
+                        ),
                         actions = aTimelineItemActionList(),
                     )
                 ),
                 anActionListState().copy(
                     target = ActionListState.Target.Success(
-                    event = aTimelineItemEvent(content = aTimelineItemVideoContent()),
+                        event = aTimelineItemEvent(content = aTimelineItemVideoContent()).copy(
+                            reactionsState = reactionsState
+                        ),
                         actions = aTimelineItemActionList(),
                     )
                 ),
                 anActionListState().copy(
                     target = ActionListState.Target.Success(
-                    event = aTimelineItemEvent(content = aTimelineItemFileContent()),
+                        event = aTimelineItemEvent(content = aTimelineItemFileContent()).copy(
+                            reactionsState = reactionsState
+                        ),
                         actions = aTimelineItemActionList(),
                     )
                 ),
                 anActionListState().copy(
                     target = ActionListState.Target.Success(
-                    event = aTimelineItemEvent(content = aTimelineItemLocationContent()),
+                        event = aTimelineItemEvent(content = aTimelineItemLocationContent()).copy(
+                            reactionsState = reactionsState
+                        ),
                         actions = aTimelineItemActionList(),
                     )
                 ),
                 anActionListState().copy(
                     target = ActionListState.Target.Success(
-                    event = aTimelineItemEvent(content = aTimelineItemLocationContent()),
+                        event = aTimelineItemEvent(content = aTimelineItemLocationContent()).copy(
+                            reactionsState = reactionsState
+                        ),
                         actions = aTimelineItemActionList(),
                     ),
                     displayEmojiReactions = false,
                 ),
             )
+        }
 }
 
 fun anActionListState() = ActionListState(

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

@@ -16,6 +16,7 @@
 
 package io.element.android.features.messages.impl.actionlist
 
+import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.interaction.MutableInteractionSource
 import androidx.compose.foundation.layout.Arrangement
@@ -46,6 +47,7 @@ import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.style.TextAlign
@@ -78,7 +80,9 @@ import io.element.android.libraries.designsystem.theme.components.hide
 import io.element.android.libraries.matrix.ui.components.AttachmentThumbnail
 import io.element.android.libraries.matrix.ui.components.AttachmentThumbnailInfo
 import io.element.android.libraries.matrix.ui.components.AttachmentThumbnailType
+import io.element.android.libraries.theme.ElementTheme
 import io.element.android.libraries.ui.strings.CommonStrings
+import kotlinx.collections.immutable.ImmutableList
 
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
@@ -178,6 +182,7 @@ private fun SheetContent(
                 if (state.displayEmojiReactions) {
                     item {
                         EmojiReactionsRow(
+                            highlightedEmojis = target.event.reactionsState.highlightedKeys,
                             onEmojiReactionClicked = onEmojiReactionClicked,
                             onCustomReactionClicked = onCustomReactionClicked,
                             modifier = Modifier.fillMaxWidth(),
@@ -322,6 +327,7 @@ private val emojiRippleRadius = 24.dp
 
 @Composable
 internal fun EmojiReactionsRow(
+    highlightedEmojis: ImmutableList<String>,
     onEmojiReactionClicked: (String) -> Unit,
     onCustomReactionClicked: () -> Unit,
     modifier: Modifier = Modifier,
@@ -335,7 +341,8 @@ internal fun EmojiReactionsRow(
             "👍", "👎", "🔥", "❤️", "👏"
         )
         for (emoji in defaultEmojis) {
-            EmojiButton(emoji, onEmojiReactionClicked)
+            val isHighlighted = highlightedEmojis.contains(emoji)
+            EmojiButton(emoji, isHighlighted, onEmojiReactionClicked)
         }
 
         Icon(
@@ -358,19 +365,34 @@ internal fun EmojiReactionsRow(
 @Composable
 private fun EmojiButton(
     emoji: String,
+    isHighlighted: Boolean,
     onClicked: (String) -> Unit,
     modifier: Modifier = Modifier,
 ) {
+    val backgroundColor = if (isHighlighted) {
+        ElementTheme.colors.bgActionPrimaryRest
+    } else {
+        Color.Transparent
+    }
+    Box(
+        modifier = modifier
+            .size(48.dp)
+            .background(backgroundColor, RoundedCornerShape(24.dp)),
+        contentAlignment = Alignment.Center
+    ) {
         Text(
             emoji,
             fontSize = 28.dp.toSp(),
-        modifier = modifier.clickable(
+            color = Color.White,
+            modifier = Modifier
+                .clickable(
                     enabled = true,
                     onClick = { onClicked(emoji) },
                     indication = rememberRipple(bounded = false, radius = emojiRippleRadius),
                     interactionSource = remember { MutableInteractionSource() }
                 )
         )
+    }
 }
 
 @Preview

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

@@ -17,7 +17,14 @@
 package io.element.android.features.messages.impl.timeline.model
 
 import kotlinx.collections.immutable.ImmutableList
+import kotlinx.collections.immutable.toPersistentList
 
 data class TimelineItemReactions(
     val reactions: ImmutableList<AggregatedReaction>
-)
+) {
+    val highlightedKeys: ImmutableList<String>
+        get() = reactions
+            .filter { it.isHighlighted }
+            .map { it.key }
+            .toPersistentList()
+}