feat(search): search history bottom sheet

Record queries on explicit search and keep up to 100 entries.
Show them in a bottom sheet opened from the search bar, with
per-entry removal and clear-all.

README.md

@@ -21,6 +21,7 @@ The app stores dictionaries as DictZip files and builds compact binary indexes f
 ## Features
 
 - Fast headword search across multiple DSL dictionaries.
+- Search history in the empty search state: recent queries with per-entry removal and clear-all.
 - Import local `.dsl`, `.dsl.gz`, and `.dsl.dz` dictionary files.
 - Download dictionaries from configured URLs, with an optional `{DATE}` placeholder for dated releases.
 - Automatic extraction, DictZip compression, and indexing.

app/src/main/java/com/example/research/MainActivity.kt

@@ -46,7 +46,7 @@ class MainActivity : ComponentActivity() {
         val app = application as ReSearchApplication
         viewModelFactory {
             initializer {
-                SearchViewModel(application, app.localDictionaryRepository, createSavedStateHandle())
+                SearchViewModel(application, app.localDictionaryRepository, app.preferencesManager, createSavedStateHandle())
             }
         }
     }

app/src/main/java/com/example/research/common/ui/ModifierExtensions.kt

@@ -1,13 +1,17 @@
 package com.example.research.common.ui
 
 import androidx.compose.foundation.clickable
+import androidx.compose.foundation.interaction.MutableInteractionSource
+import androidx.compose.material3.ripple
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.hapticfeedback.HapticFeedbackType
 import androidx.compose.ui.platform.LocalHapticFeedback
 import androidx.compose.ui.platform.testTag
 import androidx.compose.ui.semantics.semantics
 import androidx.compose.ui.semantics.testTagsAsResourceId
+import androidx.compose.ui.unit.dp
 
 fun Modifier.appTestTag(tag: String): Modifier = this
     .testTag(tag)
@@ -24,3 +28,14 @@ fun Modifier.clickableWithHaptics(
         onClick()
     }
 }
+
+@Composable
+fun Modifier.iconClickable(
+    enabled: Boolean = true,
+    onClick: () -> Unit
+): Modifier = this.clickable(
+    interactionSource = remember { MutableInteractionSource() },
+    indication = ripple(bounded = false, radius = 20.dp),
+    enabled = enabled,
+    onClick = onClick
+)

app/src/main/java/com/example/research/data/local/preferences/PreferencesManager.kt

@@ -39,6 +39,11 @@ class PreferencesManager(private val context: Context) {
         val DISABLED_DICTIONARY_PATHS = stringSetPreferencesKey("disabled_dictionary_paths")
         val HAD_NO_DICTIONARIES = booleanPreferencesKey("had_no_dictionaries")
         val DICTIONARY_STATUS = stringPreferencesKey("dictionary_status")
+        val SEARCH_HISTORY = stringPreferencesKey("search_history")
+    }
+
+    private companion object {
+        const val MAX_SEARCH_HISTORY_ENTRIES = 100
     }
 
     private val json = Json { ignoreUnknownKeys = true }
@@ -222,6 +227,51 @@ class PreferencesManager(private val context: Context) {
         }
     }
 
+    val searchHistory: Flow<List<String>> = context.dataStore.data
+        .map { preferences -> preferences[PreferencesKeys.SEARCH_HISTORY] }
+        .distinctUntilChanged()
+        .map(::decodeSearchHistory)
+
+    suspend fun addSearchHistoryEntry(query: String) {
+        context.dataStore.edit { preferences ->
+            val current = decodeSearchHistory(preferences[PreferencesKeys.SEARCH_HISTORY])
+                .toMutableList()
+            current.removeAll { it.equals(query, ignoreCase = true) }
+            current.add(0, query)
+            preferences[PreferencesKeys.SEARCH_HISTORY] =
+                json.encodeToString(current.take(MAX_SEARCH_HISTORY_ENTRIES))
+        }
+    }
+
+    suspend fun removeSearchHistoryEntry(query: String) {
+        context.dataStore.edit { preferences ->
+            val current = decodeSearchHistory(preferences[PreferencesKeys.SEARCH_HISTORY])
+                .toMutableList()
+            if (current.removeAll { it == query }) {
+                if (current.isEmpty()) {
+                    preferences.remove(PreferencesKeys.SEARCH_HISTORY)
+                } else {
+                    preferences[PreferencesKeys.SEARCH_HISTORY] = json.encodeToString(current)
+                }
+            }
+        }
+    }
+
+    suspend fun clearSearchHistory() {
+        context.dataStore.edit { preferences ->
+            preferences.remove(PreferencesKeys.SEARCH_HISTORY)
+        }
+    }
+
+    private fun decodeSearchHistory(value: String?): List<String> {
+        if (value == null) return emptyList()
+        return try {
+            json.decodeFromString<List<String>>(value)
+        } catch (_: Exception) {
+            emptyList()
+        }
+    }
+
     suspend fun sanitizeDictionarySources() {
         context.dataStore.edit { preferences ->
             val currentSources = decodeSources(

app/src/main/java/com/example/research/feature/search/SearchViewModel.kt

@@ -10,6 +10,7 @@ import com.example.research.core.util.onError
 import com.example.research.core.util.onSuccess
 import com.example.research.core.util.sanitizeQuery
 import com.example.research.data.paging.IndexEntryPagingSource
+import com.example.research.data.local.preferences.PreferencesManager
 import com.example.research.data.repository.LocalDictionaryRepository
 import com.example.research.ui.article.ArticleState
 import com.example.research.ui.article.ArticleTextWarmUp
@@ -34,6 +35,7 @@ sealed interface SearchAction {
 class SearchViewModel(
     application: Application,
     private val repository: LocalDictionaryRepository,
+    private val preferencesManager: PreferencesManager,
     private val savedStateHandle: SavedStateHandle
 ) : AndroidViewModel(application) {
 
@@ -51,6 +53,13 @@ class SearchViewModel(
     private val mutableErrorMessage = MutableStateFlow<String?>(null)
     val errorMessage: StateFlow<String?> = mutableErrorMessage.asStateFlow()
 
+    val searchHistory: StateFlow<List<String>> = preferencesManager.searchHistory
+        .stateIn(
+            scope = viewModelScope,
+            started = SharingStarted.WhileSubscribed(5000),
+            initialValue = emptyList()
+        )
+
     private val indexSearcher by lazy { repository.getIndexSearcher() }
     private var indexWarmupJob: Job? = null
     private var debounceSaveQueryJob: Job? = null
@@ -126,6 +135,7 @@ class SearchViewModel(
             }
             is SearchAction.ArticleClicked -> {
                 articleHistory.clear()
+                recordSearchHistory(action.entry.originalWord)
                 loadArticle(action.entry)
             }
             SearchAction.ClearArticle -> clearArticle()
@@ -159,6 +169,27 @@ class SearchViewModel(
         mutableErrorMessage.value = null
     }
 
+    fun removeSearchHistoryEntry(query: String) {
+        viewModelScope.launch {
+            preferencesManager.removeSearchHistoryEntry(query)
+        }
+    }
+
+    fun clearSearchHistory() {
+        viewModelScope.launch {
+            preferencesManager.clearSearchHistory()
+        }
+    }
+
+    private fun recordSearchHistory(query: String) {
+        val trimmed = query.trim()
+        if (trimmed.isBlank()) return
+        if (searchHistory.value.firstOrNull() == trimmed) return
+        viewModelScope.launch {
+            preferencesManager.addSearchHistoryEntry(trimmed)
+        }
+    }
+
     fun saveScrollPosition(index: Int, offset: Int) {
         mutableScrollPosition.value = index to offset
     }
@@ -281,6 +312,7 @@ class SearchViewModel(
                 }
                 entry?.let {
                     currentArticle?.let(articleHistory::addLast)
+                    recordSearchHistory(sanitizedWord)
                     loadArticle(it)
                 }
             }.onError { message, exception ->

app/src/main/java/com/example/research/ui/main/AdaptiveMainScreen.kt

@@ -14,7 +14,7 @@ import com.example.research.core.domain.model.IndexEntry
 import com.example.research.ui.article.ArticleContent
 import com.example.research.ui.article.ArticleTitleBar
 import com.example.research.ui.article.ArticleState
-import com.example.research.ui.main.components.MainTopBar
+import com.example.research.ui.theme.AppWindowInsets
 import com.example.research.ui.theme.Spacing
 
 @OptIn(ExperimentalMaterial3AdaptiveApi::class)
@@ -27,6 +27,7 @@ fun AdaptiveMainScreen(
     results: LazyPagingItems<IndexEntry>,
     errorMessage: String?,
     showDictionaryName: Boolean,
+    searchHistory: List<String>,
     articleState: ArticleState?,
     scrollPosition: Pair<Int, Int>,
     onAction: (MainAction) -> Unit,
@@ -54,13 +55,13 @@ fun AdaptiveMainScreen(
     val listEndPadding = if (isTwoPane) 8.dp else 16.dp
 
     val searchBar: @Composable () -> Unit = {
-        MainTopBar(
+        MainSearchBar(
             searchState = searchState,
-            enabled = canSearch,
+            canSearch = canSearch,
             isSearchBarAtBottom = isSearchBarAtBottom,
-            onQueryChange = { onAction(MainAction.QueryChanged(it)) },
+            searchHistory = searchHistory,
-            onClearQuery = { onAction(MainAction.ClearQuery) },
+            onAction = onAction,
-            onNavigateToSettings = onNavigateToSettings
+            onNavigateToSettings = onNavigateToSettings,
         )
     }
 
@@ -69,7 +70,7 @@ fun AdaptiveMainScreen(
             .fillMaxSize()
             .then(
                 if (isSearchBarAtBottom) {
-                    Modifier.windowInsetsPadding(WindowInsets.statusBars.union(WindowInsets.ime))
+                    Modifier.windowInsetsPadding(AppWindowInsets.statusBarsAndIme)
                 } else {
                     Modifier
                 }

app/src/main/java/com/example/research/ui/main/MainAction.kt

@@ -5,4 +5,7 @@ sealed interface MainAction {
     data object ClearQuery : MainAction
     data object ClearError : MainAction
     data class SaveScrollPosition(val index: Int, val offset: Int) : MainAction
+    data class HistoryEntryClicked(val query: String) : MainAction
+    data class RemoveHistoryEntry(val query: String) : MainAction
+    data object ClearHistory : MainAction
 }

app/src/main/java/com/example/research/ui/main/MainScreen.kt

@@ -40,6 +40,7 @@ fun MainRoute(
     val results = searchViewModel.searchResults.collectAsLazyPagingItems()
     val errorMessage by searchViewModel.errorMessage.collectAsStateWithLifecycle()
     val articleState by searchViewModel.selectedArticle.collectAsStateWithLifecycle()
+    val searchHistory by searchViewModel.searchHistory.collectAsStateWithLifecycle()
 
     val settingsState by settingsViewModel.uiState.collectAsStateWithLifecycle()
     val searchQuery by searchViewModel.searchQuery.collectAsStateWithLifecycle()
@@ -51,17 +52,6 @@ fun MainRoute(
     val searchState = remember(searchViewModel) {
         TextFieldState(initialText = searchViewModel.searchQuery.value)
     }
-    val onMainAction = remember(searchViewModel) {
-        { action: MainAction ->
-            when (action) {
-                is MainAction.QueryChanged -> searchViewModel.onSearchQueryChanged(action.query)
-                MainAction.ClearQuery -> searchViewModel.onAction(SearchAction.ClearQuery)
-                MainAction.ClearError -> searchViewModel.clearError()
-                is MainAction.SaveScrollPosition ->
-                    searchViewModel.saveScrollPosition(action.index, action.offset)
-            }
-        }
-    }
 
     LaunchedEffect(searchState, searchQuery) {
         if (searchState.text.toString() != searchQuery) {
@@ -97,6 +87,27 @@ fun MainRoute(
         val isWide = maxWidth >= 600.dp
         val isLandscape = maxWidth > maxHeight
 
+        val onMainAction = remember(searchViewModel, isWide) {
+            { action: MainAction ->
+                when (action) {
+                    is MainAction.QueryChanged -> searchViewModel.onSearchQueryChanged(action.query)
+                    MainAction.ClearQuery -> searchViewModel.onAction(SearchAction.ClearQuery)
+                    MainAction.ClearError -> searchViewModel.clearError()
+                    is MainAction.SaveScrollPosition ->
+                        searchViewModel.saveScrollPosition(action.index, action.offset)
+                    is MainAction.HistoryEntryClicked ->
+                        if (isWide) {
+                            searchViewModel.onAction(SearchAction.SearchAndLoadArticle(action.query))
+                        } else {
+                            searchViewModel.onSearchQueryChanged(action.query)
+                        }
+                    is MainAction.RemoveHistoryEntry ->
+                        searchViewModel.removeSearchHistoryEntry(action.query)
+                    MainAction.ClearHistory -> searchViewModel.clearSearchHistory()
+                }
+            }
+        }
+
         if (isWide) {
             AdaptiveMainScreen(
                 searchState = searchState,
@@ -106,6 +117,7 @@ fun MainRoute(
                 results = results,
                 errorMessage = errorMessage,
                 showDictionaryName = showDictionaryName,
+                searchHistory = searchHistory,
                 articleState = articleState,
                 scrollPosition = scrollPosition,
                 onAction = onMainAction,
@@ -130,6 +142,7 @@ fun MainRoute(
                 results = results,
                 errorMessage = errorMessage,
                 showDictionaryName = showDictionaryName,
+                searchHistory = searchHistory,
                 scrollPosition = scrollPosition,
                 onAction = onMainAction,
                 onArticleClick = onArticleClick,
@@ -139,6 +152,29 @@ fun MainRoute(
     }
 }
 
+@Composable
+internal fun MainSearchBar(
+    searchState: TextFieldState,
+    canSearch: Boolean,
+    isSearchBarAtBottom: Boolean,
+    searchHistory: List<String>,
+    onAction: (MainAction) -> Unit,
+    onNavigateToSettings: () -> Unit,
+) {
+    MainTopBar(
+        searchState = searchState,
+        enabled = canSearch,
+        isSearchBarAtBottom = isSearchBarAtBottom,
+        onQueryChange = { onAction(MainAction.QueryChanged(it)) },
+        onClearQuery = { onAction(MainAction.ClearQuery) },
+        searchHistory = searchHistory,
+        onHistoryEntryClick = { onAction(MainAction.HistoryEntryClicked(it)) },
+        onHistoryEntryRemove = { onAction(MainAction.RemoveHistoryEntry(it)) },
+        onClearHistory = { onAction(MainAction.ClearHistory) },
+        onNavigateToSettings = onNavigateToSettings
+    )
+}
+
 @Composable
 internal fun MainScreen(
     searchState: TextFieldState,
@@ -147,19 +183,20 @@ internal fun MainScreen(
     results: LazyPagingItems<IndexEntry>,
     errorMessage: String?,
     showDictionaryName: Boolean,
+    searchHistory: List<String>,
     scrollPosition: Pair<Int, Int>,
     onAction: (MainAction) -> Unit,
     onArticleClick: (IndexEntry) -> Unit,
     onNavigateToSettings: () -> Unit
 ) {
     val searchBar: @Composable () -> Unit = {
-        MainTopBar(
+        MainSearchBar(
             searchState = searchState,
-            enabled = canSearch,
+            canSearch = canSearch,
             isSearchBarAtBottom = isSearchBarAtBottom,
-            onQueryChange = { onAction(MainAction.QueryChanged(it)) },
+            searchHistory = searchHistory,
-            onClearQuery = { onAction(MainAction.ClearQuery) },
+            onAction = onAction,
-            onNavigateToSettings = onNavigateToSettings
+            onNavigateToSettings = onNavigateToSettings,
         )
     }
 

app/src/main/java/com/example/research/ui/main/components/MainTopBar.kt

@@ -35,7 +35,6 @@ import androidx.compose.material3.Surface
 import androidx.compose.material3.TextField
 import androidx.compose.material3.TextFieldDefaults
 import androidx.compose.material3.rememberModalBottomSheetState
-import androidx.compose.material3.ripple
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
@@ -56,14 +55,16 @@ import androidx.compose.ui.platform.LocalConfiguration
 import androidx.compose.ui.platform.LocalDensity
 import androidx.compose.ui.platform.LocalFocusManager
 import androidx.compose.ui.platform.testTag
-import androidx.compose.ui.res.painterResource
-import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.semantics.semantics
 import androidx.compose.ui.semantics.testTagsAsResourceId
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.input.ImeAction
 import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.dp
 import com.example.research.R
+import com.example.research.common.ui.appTestTag
+import com.example.research.common.ui.iconClickable
 import com.example.research.common.ui.theme.dictionaryTitleLarge
 import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.withTimeoutOrNull
@@ -75,6 +76,8 @@ import kotlin.math.roundToInt
 
 private val TopBarHeight = Spacing.topBarHeight
 private val TopBarShape = RoundedCornerShape(28.dp)
+private val HistorySheetChrome = 64.dp
+private val HistorySheetMinHeight = 300.dp
 
 @Composable
 fun MainTopBar(
@@ -83,13 +86,24 @@ fun MainTopBar(
     isSearchBarAtBottom: Boolean = false,
     onQueryChange: (String) -> Unit,
     onClearQuery: () -> Unit,
+    searchHistory: List<String>,
+    onHistoryEntryClick: (String) -> Unit,
+    onHistoryEntryRemove: (String) -> Unit,
+    onClearHistory: () -> Unit,
     onNavigateToSettings: () -> Unit
 ) {
-    val searchIcon = painterResource(R.drawable.ic_search)
     val closeIcon = painterResource(R.drawable.ic_close)
+    val historyIcon = painterResource(R.drawable.ic_manage_search)
     val settingsIcon = painterResource(R.drawable.ic_settings)
     val clearLabel = stringResource(R.string.clear_search)
+    val historyLabel = stringResource(R.string.recent_searches)
+    val focusManager = LocalFocusManager.current
+
+    var showHistorySheet by remember { mutableStateOf(false) }
     var topBarBottomPx by remember { mutableIntStateOf(0) }
+    val coroutineScope = rememberCoroutineScope()
+    val density = LocalDensity.current
+    val imeInsets = WindowInsets.ime
 
     Surface(
         color = MaterialTheme.colorScheme.surface,
@@ -123,9 +137,21 @@ fun MainTopBar(
                 enabled = enabled,
                 onQueryChange = onQueryChange,
                 onClearQuery = onClearQuery,
-                searchIcon = searchIcon,
                 closeIcon = closeIcon,
                 clearLabel = clearLabel,
+                historyIcon = historyIcon,
+                historyLabel = historyLabel,
+                historyEnabled = searchHistory.isNotEmpty(),
+                onShowHistory = {
+                    focusManager.clearFocus(force = true)
+                    coroutineScope.launch {
+                        withTimeoutOrNull(350) {
+                            snapshotFlow { imeInsets.getBottom(density) > 0 }
+                                .first { visible -> !visible }
+                        }
+                        showHistorySheet = !showHistorySheet
+                    }
+                },
                 modifier = Modifier.weight(1f)
             )
 
@@ -148,6 +174,25 @@ fun MainTopBar(
             }
         }
     }
+
+    if (showHistorySheet && searchHistory.isNotEmpty()) {
+        SearchHistorySheet(
+            history = searchHistory,
+            isSearchBarAtBottom = isSearchBarAtBottom,
+            topBarBottomPx = topBarBottomPx,
+            onDismiss = { showHistorySheet = false },
+            onEntryClick = { entry ->
+                focusManager.clearFocus(force = true)
+                showHistorySheet = false
+                onHistoryEntryClick(entry)
+            },
+            onEntryRemove = onHistoryEntryRemove,
+            onClearAll = {
+                showHistorySheet = false
+                onClearHistory()
+            }
+        )
+    }
 }
 
 @Composable
@@ -157,9 +202,12 @@ private fun SearchField(
     enabled: Boolean,
     onQueryChange: (String) -> Unit,
     onClearQuery: () -> Unit,
-    searchIcon: androidx.compose.ui.graphics.painter.Painter,
+    closeIcon: Painter,
-    closeIcon: androidx.compose.ui.graphics.painter.Painter,
     clearLabel: String,
+    historyIcon: Painter,
+    historyLabel: String,
+    historyEnabled: Boolean,
+    onShowHistory: () -> Unit,
     modifier: Modifier = Modifier
 ) {
     val containerColor = MaterialTheme.colorScheme.surfaceContainerHighest
@@ -182,11 +230,16 @@ private fun SearchField(
         lineLimits = TextFieldLineLimits.SingleLine,
         leadingIcon = {
             Icon(
-                painter = searchIcon,
+                painter = historyIcon,
-                contentDescription = null,
+                contentDescription = historyLabel,
+                tint = LocalContentColor.current.copy(
+                    alpha = if (historyEnabled) 1f else 0.38f
+                ),
                 modifier = Modifier
                     .offset(x = 4.dp)
-                    .size(24.dp)
+                    .size(28.dp)
+                    .appTestTag("history_button")
+                    .iconClickable(enabled = historyEnabled, onClick = onShowHistory)
             )
         },
         trailingIcon = if (searchState.text.isNotEmpty()) {
@@ -231,3 +284,50 @@ private fun SearchField(
             .semantics { testTagsAsResourceId = true }
     )
 }
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+private fun SearchHistorySheet(
+    history: List<String>,
+    isSearchBarAtBottom: Boolean,
+    topBarBottomPx: Int,
+    onDismiss: () -> Unit,
+    onEntryClick: (String) -> Unit,
+    onEntryRemove: (String) -> Unit,
+    onClearAll: () -> Unit
+) {
+    val sheetState = rememberModalBottomSheetState(skipPartiallyExpanded = true)
+    val density = LocalDensity.current
+    val configuration = LocalConfiguration.current
+    var frozenHeight by remember { mutableStateOf<Dp?>(null) }
+    if (frozenHeight == null) {
+        frozenHeight = if (isSearchBarAtBottom) {
+            configuration.screenHeightDp.dp -
+                HistorySheetChrome -
+                with(density) { WindowInsets.navigationBars.getBottom(this).toDp() }
+        } else {
+            with(density) {
+                (configuration.screenHeightDp.dp.toPx() - topBarBottomPx).toDp()
+            }
+        }
+    }
+    val maxContentHeight = frozenHeight!!
+
+    ModalBottomSheet(
+        onDismissRequest = onDismiss,
+        sheetState = sheetState,
+        contentWindowInsets = { WindowInsets(0, 0, 0, 0) },
+        modifier = Modifier.testTag("search_history_sheet")
+    ) {
+        SearchHistoryList(
+            history = history,
+            onEntryClick = onEntryClick,
+            onEntryRemove = onEntryRemove,
+            onClearAll = onClearAll,
+            modifier = Modifier
+                .fillMaxWidth()
+                .heightIn(min = HistorySheetMinHeight, max = maxContentHeight)
+                .padding(horizontal = 24.dp)
+        )
+    }
+}

app/src/main/java/com/example/research/ui/main/components/SearchHistoryList.kt

@@ -0,0 +1,138 @@
+package com.example.research.ui.main.components
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.LazyListState
+import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.lazy.rememberLazyListState
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.dp
+import com.example.research.R
+import com.example.research.common.ui.appTestTag
+import com.example.research.common.ui.iconClickable
+import com.example.research.common.ui.theme.dictionaryTitleLarge
+import com.example.research.ui.theme.Spacing
+
+@Composable
+fun SearchHistoryList(
+    history: List<String>,
+    onEntryClick: (String) -> Unit,
+    onEntryRemove: (String) -> Unit,
+    onClearAll: () -> Unit,
+    modifier: Modifier = Modifier,
+    listState: LazyListState = rememberLazyListState(),
+    contentPadding: PaddingValues = PaddingValues(),
+) {
+    LazyColumn(
+        modifier = modifier
+            .appTestTag("search_history"),
+        state = listState,
+        contentPadding = contentPadding,
+        verticalArrangement = Arrangement.spacedBy(4.dp)
+    ) {
+        item(key = "history_header", contentType = "history_header") {
+            Row(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(vertical = Spacing.listItemVertical),
+                verticalAlignment = Alignment.CenterVertically
+            ) {
+                Text(
+                    text = stringResource(R.string.recent_searches),
+                    style = MaterialTheme.typography.titleSmall,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    modifier = Modifier.weight(1f)
+                )
+                Text(
+                    text = stringResource(R.string.clear_search_history),
+                    style = MaterialTheme.typography.titleSmall,
+                    color = MaterialTheme.colorScheme.primary,
+                    softWrap = false,
+                    modifier = Modifier
+                        .padding(end = 18.dp)
+                        .clip(CircleShape)
+                        .background(MaterialTheme.colorScheme.surfaceContainerHighest)
+                        .appTestTag("clear_history")
+                        .clickable { onClearAll() }
+                        .padding(horizontal = 12.dp, vertical = 6.dp)
+                )
+            }
+        }
+        items(
+            items = history,
+            key = { it },
+            contentType = { "history_entry" }
+        ) { entry ->
+            SearchHistoryItem(
+                entry = entry,
+                onEntryClick = onEntryClick,
+                onEntryRemove = onEntryRemove
+            )
+        }
+    }
+}
+
+@Composable
+private fun SearchHistoryItem(
+    entry: String,
+    onEntryClick: (String) -> Unit,
+    onEntryRemove: (String) -> Unit
+) {
+    Row(
+        modifier = Modifier
+            .fillMaxWidth()
+            .appTestTag("search_history_entry")
+            .clickable { onEntryClick(entry) }
+            .padding(vertical = Spacing.listItemVertical),
+        verticalAlignment = Alignment.CenterVertically
+    ) {
+        Icon(
+            painter = painterResource(R.drawable.ic_history),
+            contentDescription = null,
+            tint = MaterialTheme.colorScheme.onSurfaceVariant,
+            modifier = Modifier
+                .padding(end = 16.dp)
+                .size(20.dp)
+        )
+        Text(
+            text = entry,
+            style = MaterialTheme.typography.dictionaryTitleLarge,
+            maxLines = 1,
+            overflow = TextOverflow.Ellipsis,
+            modifier = Modifier.weight(1f)
+        )
+        Box(
+            contentAlignment = Alignment.Center,
+            modifier = Modifier.width(Spacing.topBarHeight)
+        ) {
+            Icon(
+                painter = painterResource(R.drawable.ic_close),
+                contentDescription = stringResource(R.string.remove_search_history_entry),
+                tint = MaterialTheme.colorScheme.onSurfaceVariant,
+                modifier = Modifier
+                    .appTestTag("remove_history_entry")
+                    .iconClickable { onEntryRemove(entry) }
+                    .size(20.dp)
+            )
+        }
+    }
+}

app/src/main/res/drawable/ic_history.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M13,3A9,9 0 0,0 4,12H1L4.89,15.89L4.96,16.03L9,12H6A7,7 0 0,1 13,5A7,7 0 0,1 20,12A7,7 0 0,1 13,19C11.07,19 9.32,18.21 8.06,16.94L6.64,18.36C8.27,19.99 10.51,21 13,21A9,9 0 0,0 22,12A9,9 0 0,0 13,3M12,8V13L16.28,15.54L17,14.33L13.5,12.25V8H12Z" />
+</vector>

app/src/main/res/values-ru/strings.xml

@@ -16,6 +16,9 @@
     <string name="search_bar_position_top">Наверху</string>
     <string name="search_bar_position_bottom">Внизу</string>
     <string name="clear_search">Очистить поиск</string>
+    <string name="recent_searches">История поиска</string>
+    <string name="clear_search_history">Очистить</string>
+    <string name="remove_search_history_entry">Удалить из истории</string>
     <string name="article_return_to_search">Вернуться к поиску</string>
     <string name="error_checking_dictionaries">Не удалось проверить статус словарей</string>
     <string name="error_loading_article">Ошибка загрузки: %1$s</string>

app/src/main/res/values/strings.xml

@@ -16,6 +16,9 @@
     <string name="search_bar_position_top">Top</string>
     <string name="search_bar_position_bottom">Bottom</string>
     <string name="clear_search">Clear search</string>
+    <string name="recent_searches">Search history</string>
+    <string name="clear_search_history">Clear</string>
+    <string name="remove_search_history_entry">Remove from history</string>
     <string name="article_return_to_search">Return to search</string>
     <string name="error_checking_dictionaries">Failed to check dictionary status</string>
     <string name="error_loading_article">Loading error: %1$s</string>