feat: 长按删除单条搜索历史

app/src/main/java/com/huanchengfly/tieba/post/ui/page/search/SearchPage.kt

@@ -6,6 +6,7 @@ import androidx.compose.animation.core.animateFloatAsState
 import androidx.compose.foundation.ExperimentalFoundationApi
 import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
+import androidx.compose.foundation.combinedClickable
 import androidx.compose.foundation.interaction.MutableInteractionSource
 import androidx.compose.foundation.interaction.PressInteraction
 import androidx.compose.foundation.layout.Arrangement
@@ -271,6 +272,7 @@ fun SearchPage(
                         },
                         expanded = expanded,
                         onToggleExpand = { expanded = !expanded },
+                        onDelete = { viewModel.send(SearchUiIntent.DeleteSearchHistory(it.id)) },
                         onClear = { viewModel.send(SearchUiIntent.ClearSearchHistory) }
                     )
                 }
@@ -389,13 +391,14 @@ private fun ColumnScope.SearchTabRow(
     }
 }
 
-@OptIn(ExperimentalLayoutApi::class)
+@OptIn(ExperimentalLayoutApi::class, ExperimentalFoundationApi::class)
 @Composable
 private fun SearchHistoryList(
     searchHistories: ImmutableList<SearchHistory>,
     onSearchHistoryClick: (SearchHistory) -> Unit,
     expanded: Boolean = false,
     onToggleExpand: () -> Unit = {},
+    onDelete: (SearchHistory) -> Unit = {},
     onClear: () -> Unit = {},
 ) {
     val hasMore = remember(searchHistories) {
@@ -438,7 +441,10 @@ private fun SearchHistoryList(
                     modifier = Modifier
                         .padding(bottom = 8.dp)
                         .clip(RoundedCornerShape(100))
-                        .clickable { onSearchHistoryClick(searchHistory) }
+                        .combinedClickable(
+                            onClick = { onSearchHistoryClick(searchHistory) },
+                            onLongClick = { onDelete(searchHistory) }
+                        )
                         .background(ExtendedTheme.colors.chip)
                         .padding(horizontal = 16.dp, vertical = 8.dp)
                 ) {

app/src/main/java/com/huanchengfly/tieba/post/ui/page/search/SearchViewModel.kt

@@ -27,6 +27,7 @@ import kotlinx.coroutines.flow.flowOn
 import kotlinx.coroutines.flow.merge
 import kotlinx.coroutines.flow.onEach
 import org.litepal.LitePal
+import org.litepal.extension.delete
 import org.litepal.extension.deleteAll
 import org.litepal.extension.find
 
@@ -47,6 +48,10 @@ class SearchViewModel :
                 App.INSTANCE.getString(R.string.toast_clear_failure, partialChange.errorMessage)
             )
 
+            is SearchPartialChange.DeleteSearchHistory.Failure -> CommonUiEvent.Toast(
+                App.INSTANCE.getString(R.string.toast_delete_failure, partialChange.errorMessage)
+            )
+
             is SearchPartialChange.SubmitKeyword -> SearchUiEvent.KeywordChanged(partialChange.keyword)
 
             else -> null
@@ -61,6 +66,8 @@ class SearchViewModel :
                     .flatMapConcat { produceInitPartialChange() },
                 intentFlow.filterIsInstance<SearchUiIntent.ClearSearchHistory>()
                     .flatMapConcat { produceClearHistoryPartialChange() },
+                intentFlow.filterIsInstance<SearchUiIntent.DeleteSearchHistory>()
+                    .flatMapConcat { it.producePartialChange() },
                 intentFlow.filterIsInstance<SearchUiIntent.SubmitKeyword>()
                     .flatMapConcat { it.producePartialChange() },
             )
@@ -83,6 +90,14 @@ class SearchViewModel :
                 emit(SearchPartialChange.ClearSearchHistory.Failure(it.getErrorMessage()))
             }.flowOn(Dispatchers.IO)
 
+        private fun SearchUiIntent.DeleteSearchHistory.producePartialChange() =
+            flow<SearchPartialChange.DeleteSearchHistory> {
+                LitePal.delete<SearchHistory>(id)
+                emit(SearchPartialChange.DeleteSearchHistory.Success(id))
+            }.catch {
+                emit(SearchPartialChange.DeleteSearchHistory.Failure(it.getErrorMessage()))
+            }.flowOn(Dispatchers.IO)
+
         private fun SearchUiIntent.SubmitKeyword.producePartialChange() =
             flowOf(SearchPartialChange.SubmitKeyword(keyword.trim()))
                 .onEach {
@@ -102,6 +117,8 @@ sealed interface SearchUiIntent : UiIntent {
 
     data object ClearSearchHistory : SearchUiIntent
 
+    data class DeleteSearchHistory(val id: Long) : SearchUiIntent
+
     data class SubmitKeyword(val keyword: String) : SearchUiIntent
 }
 
@@ -130,6 +147,23 @@ sealed interface SearchPartialChange : PartialChange<SearchUiState> {
         ) : ClearSearchHistory()
     }
 
+    sealed class DeleteSearchHistory : SearchPartialChange {
+        override fun reduce(oldState: SearchUiState): SearchUiState = when (this) {
+            is Success -> oldState.copy(
+                searchHistories = oldState.searchHistories.filterNot { it.id == id }
+                    .toImmutableList()
+            )
+
+            is Failure -> oldState
+        }
+
+        data class Success(val id: Long) : DeleteSearchHistory()
+
+        data class Failure(
+            val errorMessage: String,
+        ) : DeleteSearchHistory()
+    }
+
     data class SubmitKeyword(val keyword: String) : SearchPartialChange {
         override fun reduce(oldState: SearchUiState): SearchUiState {
             if (keyword.isEmpty()) {