BookInfoScreen: Editing Author and Description + Fixed slow loading (caused by BookInfoEvent.OnCheckCoverReset).

app/src/main/java/ua/acclorite/book_story/data/mapper/book/BookMapperImpl.kt

@@ -16,7 +16,7 @@ class BookMapperImpl @Inject constructor() : BookMapper {
             scrollIndex = book.scrollIndex,
             scrollOffset = book.scrollOffset,
             progress = book.progress,
-            author = book.author.string,
+            author = book.author.getAsString(),
             textPath = book.textPath,
             description = book.description,
             image = if (book.coverImage != null) book.coverImage.toString() else null,

app/src/main/java/ua/acclorite/book_story/domain/util/UIText.kt

@@ -11,9 +11,9 @@ import java.io.Serializable
 
 @Parcelize
 @Immutable
-sealed class UIText(val string: String?) : Parcelable {
-    data class StringValue(val value: String) : UIText(value)
-    class StringResource(@StringRes val resId: Int, vararg val args: Serializable) : UIText(null)
+sealed class UIText : Parcelable {
+    data class StringValue(val value: String) : UIText()
+    class StringResource(@StringRes val resId: Int, vararg val args: Serializable) : UIText()
 
     @Composable
     fun asString(): String {
@@ -29,4 +29,11 @@ sealed class UIText(val string: String?) : Parcelable {
             is StringResource -> context.getString(resId, *args)
         }
     }
+
+    fun getAsString(): String? {
+        return when (this) {
+            is StringValue -> value
+            is StringResource -> null
+        }
+    }
 }

app/src/main/java/ua/acclorite/book_story/presentation/screens/book_info/BookInfoScreen.kt

@@ -1,8 +1,6 @@
 package ua.acclorite.book_story.presentation.screens.book_info
 
-import android.widget.Toast
 import androidx.activity.compose.BackHandler
-import androidx.compose.animation.core.tween
 import androidx.compose.animation.expandHorizontally
 import androidx.compose.animation.fadeIn
 import androidx.compose.animation.fadeOut
@@ -15,6 +13,7 @@ import androidx.compose.foundation.layout.WindowInsets
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.imePadding
 import androidx.compose.foundation.layout.navigationBars
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
@@ -24,10 +23,7 @@ import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.material.ExperimentalMaterialApi
 import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.automirrored.filled.ArrowBack
-import androidx.compose.material.icons.filled.Done
 import androidx.compose.material.icons.filled.PlayArrow
-import androidx.compose.material.icons.filled.Refresh
 import androidx.compose.material.pullrefresh.PullRefreshIndicator
 import androidx.compose.material.pullrefresh.pullRefresh
 import androidx.compose.material.pullrefresh.rememberPullRefreshState
@@ -44,32 +40,25 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.State
 import androidx.compose.runtime.collectAsState
-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
-import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.input.nestedscroll.nestedScroll
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
 import ua.acclorite.book_story.R
 import ua.acclorite.book_story.domain.util.OnNavigate
-import ua.acclorite.book_story.presentation.components.AnimatedTopAppBar
 import ua.acclorite.book_story.presentation.components.CustomAnimatedVisibility
-import ua.acclorite.book_story.presentation.components.CustomIconButton
 import ua.acclorite.book_story.presentation.components.CustomSnackbar
-import ua.acclorite.book_story.presentation.components.GoBackButton
 import ua.acclorite.book_story.presentation.data.LocalNavigator
 import ua.acclorite.book_story.presentation.data.Screen
 import ua.acclorite.book_story.presentation.screens.book_info.components.BookInfoBackground
 import ua.acclorite.book_story.presentation.screens.book_info.components.BookInfoDescriptionSection
 import ua.acclorite.book_story.presentation.screens.book_info.components.BookInfoInfoSection
-import ua.acclorite.book_story.presentation.screens.book_info.components.BookInfoMoreDropDown
 import ua.acclorite.book_story.presentation.screens.book_info.components.BookInfoStatisticSection
+import ua.acclorite.book_story.presentation.screens.book_info.components.BookInfoTopBar
 import ua.acclorite.book_story.presentation.screens.book_info.components.change_cover_bottom_sheet.BookInfoChangeCoverBottomSheet
 import ua.acclorite.book_story.presentation.screens.book_info.components.confirm_update_dialog.BookInfoConfirmUpdateDialog
 import ua.acclorite.book_story.presentation.screens.book_info.components.details_bottom_sheet.BookInfoDetailsBottomSheet
@@ -84,8 +73,6 @@ import ua.acclorite.book_story.presentation.screens.history.data.HistoryEvent
 import ua.acclorite.book_story.presentation.screens.history.data.HistoryViewModel
 import ua.acclorite.book_story.presentation.screens.library.data.LibraryEvent
 import ua.acclorite.book_story.presentation.screens.library.data.LibraryViewModel
-import ua.acclorite.book_story.presentation.ui.DefaultTransition
-import ua.acclorite.book_story.presentation.ui.Transitions
 
 @Composable
 fun BookInfoScreenRoot(screen: Screen.BookInfo) {
@@ -140,7 +127,6 @@ private fun BookInfoScreen(
             )
         }
     )
-    val firstVisibleItemIndex by remember { derivedStateOf { listState.firstVisibleItemIndex } }
 
     if (state.value.showChangeCoverBottomSheet) {
         BookInfoChangeCoverBottomSheet(
@@ -185,101 +171,21 @@ private fun BookInfoScreen(
     Scaffold(
         Modifier
             .fillMaxSize()
+            .imePadding()
             .windowInsetsPadding(WindowInsets.navigationBars)
             .pullRefresh(refreshState)
             .nestedScroll(scrollBehavior.nestedScrollConnection),
         containerColor = MaterialTheme.colorScheme.surface,
         topBar = {
-            AnimatedTopAppBar(
-                containerColor = Color.Transparent,
+            BookInfoTopBar(
+                state = state,
+                onEvent = onEvent,
+                onLibraryEvent = onLibraryEvent,
+                onHistoryEvent = onHistoryEvent,
+                onNavigate = onNavigate,
                 scrollBehavior = scrollBehavior,
-                isTopBarScrolled = null,
-
-                content1NavigationIcon = {
-                    if (state.value.editTitle) {
-                        CustomIconButton(
-                            icon = Icons.AutoMirrored.Filled.ArrowBack,
-                            contentDescription = R.string.hide_edit_title_content_desc,
-                            disableOnClick = true
-                        ) {
-                            onEvent(BookInfoEvent.OnShowHideEditTitle)
-                        }
-                    } else {
-                        GoBackButton(onNavigate = onNavigate, enabled = !state.value.isRefreshing) {
-                            onEvent(BookInfoEvent.OnCancelUpdate)
-                        }
-                    }
-                },
-                content1Title = {
-                    DefaultTransition(visible = firstVisibleItemIndex > 0) {
-                        Text(
-                            state.value.book.title,
-                            style = MaterialTheme.typography.titleLarge,
-                            color = MaterialTheme.colorScheme.onSurface,
-                            overflow = TextOverflow.Ellipsis,
-                            maxLines = 1
-                        )
-                    }
-                },
-                content1Actions = {
-                    CustomIconButton(
-                        icon = Icons.Default.Refresh,
-                        contentDescription = R.string.refresh_book_content_desc,
-                        disableOnClick = false,
-                        enabled = !state.value.isRefreshing && !state.value.isLoadingUpdate
-                    ) {
-                        onEvent(
-                            BookInfoEvent.OnLoadUpdate(
-                                snackbarState,
-                                context
-                            )
-                        )
-                    }
-
-                    Box {
-                        DefaultTransition(
-                            visible = !state.value.editTitle
-                        ) {
-                            BookInfoMoreDropDown(
-                                state = state,
-                                onEvent = onEvent,
-                                snackbarState = snackbarState
-                            )
-                        }
-                        CustomAnimatedVisibility(
-                            visible = state.value.editTitle,
-                            enter = Transitions.DefaultTransitionIn,
-                            exit = fadeOut(tween(200))
-                        ) {
-                            CustomIconButton(
-                                icon = Icons.Default.Done,
-                                contentDescription = R.string.apply_changes_content_desc,
-                                disableOnClick = true,
-                                enabled = !state.value.isRefreshing &&
-                                        state.value.titleValue.isNotBlank() &&
-                                        state.value.titleValue.trim() !=
-                                        state.value.book.title.trim(),
-                                color = if (state.value.titleValue.isNotBlank()
-                                    && state.value.titleValue != state.value.book.title
-                                ) MaterialTheme.colorScheme.onSurface
-                                else MaterialTheme.colorScheme.onSurfaceVariant
-                            ) {
-                                onEvent(
-                                    BookInfoEvent.OnUpdateTitle(
-                                        refreshList = {
-                                            onLibraryEvent(LibraryEvent.OnUpdateBook(it))
-                                            onHistoryEvent(HistoryEvent.OnUpdateBook(it))
-                                        }
-                                    ))
-                                Toast.makeText(
-                                    context,
-                                    context.getString(R.string.title_changed),
-                                    Toast.LENGTH_LONG
-                                ).show()
-                            }
-                        }
-                    }
-                }
+                listState = listState,
+                snackbarState = snackbarState
             )
         },
         bottomBar = {
@@ -324,7 +230,10 @@ private fun BookInfoScreen(
                 item {
                     Spacer(modifier = Modifier.height(24.dp))
                     // Description
-                    BookInfoDescriptionSection(state = state)
+                    BookInfoDescriptionSection(
+                        state = state,
+                        onEvent = onEvent
+                    )
                 }
             }
 
@@ -382,8 +291,24 @@ private fun BookInfoScreen(
     }
 
     BackHandler {
+        var exitedEditMode = false
+
         if (state.value.editTitle) {
             onEvent(BookInfoEvent.OnShowHideEditTitle)
+            exitedEditMode = true
+        }
+
+        if (state.value.editAuthor) {
+            onEvent(BookInfoEvent.OnShowHideEditAuthor)
+            exitedEditMode = true
+        }
+
+        if (state.value.editDescription) {
+            onEvent(BookInfoEvent.OnShowHideEditDescription)
+            exitedEditMode = true
+        }
+
+        if (exitedEditMode) {
             return@BackHandler
         }
 

app/src/main/java/ua/acclorite/book_story/presentation/screens/book_info/components/BookInfoDescriptionSection.kt

@@ -1,34 +1,93 @@
 package ua.acclorite.book_story.presentation.screens.book_info.components
 
+import androidx.compose.foundation.ExperimentalFoundationApi
+import androidx.compose.foundation.combinedClickable
+import androidx.compose.foundation.interaction.MutableInteractionSource
+import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.text.selection.SelectionContainer
+import androidx.compose.foundation.text.BasicTextField
+import androidx.compose.foundation.text.KeyboardOptions
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.State
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.focus.FocusRequester
+import androidx.compose.ui.focus.focusRequester
+import androidx.compose.ui.graphics.SolidColor
+import androidx.compose.ui.layout.onGloballyPositioned
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.input.KeyboardCapitalization
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
 import ua.acclorite.book_story.R
+import ua.acclorite.book_story.presentation.screens.book_info.data.BookInfoEvent
 import ua.acclorite.book_story.presentation.screens.book_info.data.BookInfoState
 
 /**
  * Description section.
+ *
+ * @param state [BookInfoState].
+ * @param onEvent [BookInfoEvent] callback.
  */
+@OptIn(ExperimentalFoundationApi::class)
 @Composable
-fun BookInfoDescriptionSection(state: State<BookInfoState>) {
-    SelectionContainer {
+fun BookInfoDescriptionSection(
+    state: State<BookInfoState>,
+    onEvent: (BookInfoEvent) -> Unit
+) {
+    val descriptionFocusRequester = remember { FocusRequester() }
+
+    if (!state.value.editDescription) {
         Text(
             if (state.value.book.description?.isNotBlank() == true) state.value.book.description!!
             else stringResource(id = R.string.error_no_description),
             style = MaterialTheme.typography.bodyLarge,
             color = MaterialTheme.colorScheme.onSurface,
             textAlign = TextAlign.Start,
-            modifier = Modifier.padding(horizontal = 24.dp)
+            modifier = Modifier
+                .padding(horizontal = 24.dp)
+                .combinedClickable(
+                    interactionSource = remember { MutableInteractionSource() },
+                    indication = null,
+                    onClick = {},
+                    onLongClick = {
+                        onEvent(BookInfoEvent.OnShowHideEditDescription)
+                    }
+                ),
         )
+    } else {
+        BasicTextField(
+            value = state.value.descriptionValue,
+            textStyle = MaterialTheme.typography.bodyLarge.copy(
+                color = MaterialTheme.colorScheme.onSurface
+            ),
+            onValueChange = {
+                if (it.length < 5000 || it.length < state.value.authorValue.length) {
+                    onEvent(BookInfoEvent.OnDescriptionValueChange(it))
+                }
+            },
+            modifier = Modifier
+                .padding(horizontal = 24.dp)
+                .focusRequester(descriptionFocusRequester)
+                .onGloballyPositioned {
+                    onEvent(BookInfoEvent.OnDescriptionRequestFocus(descriptionFocusRequester))
+                },
+            keyboardOptions = KeyboardOptions(KeyboardCapitalization.Sentences),
+            cursorBrush = SolidColor(MaterialTheme.colorScheme.onSurfaceVariant)
+        ) { innerText ->
+            Box(
+                modifier = Modifier.fillMaxWidth(),
+                contentAlignment = Alignment.CenterStart
+            ) {
+                innerText()
+            }
+        }
     }
 
     Spacer(modifier = Modifier.height(96.dp))

app/src/main/java/ua/acclorite/book_story/presentation/screens/book_info/components/BookInfoInfoSection.kt

@@ -18,7 +18,6 @@ import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.text.BasicTextField
 import androidx.compose.foundation.text.KeyboardOptions
-import androidx.compose.foundation.text.selection.SelectionContainer
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Image
 import androidx.compose.material.icons.outlined.Person
@@ -56,7 +55,8 @@ fun BookInfoInfoSection(
     state: State<BookInfoState>,
     onEvent: (BookInfoEvent) -> Unit
 ) {
-    val focusRequester = remember { FocusRequester() }
+    val titleFocusRequester = remember { FocusRequester() }
+    val authorFocusRequester = remember { FocusRequester() }
 
     Row(
         verticalAlignment = Alignment.CenterVertically, modifier = Modifier
@@ -135,9 +135,9 @@ fun BookInfoInfoSection(
                         }
                     },
                     modifier = Modifier
-                        .focusRequester(focusRequester)
+                        .focusRequester(titleFocusRequester)
                         .onGloballyPositioned {
-                            onEvent(BookInfoEvent.OnRequestFocus(focusRequester))
+                            onEvent(BookInfoEvent.OnTitleRequestFocus(titleFocusRequester))
                         },
                     keyboardOptions = KeyboardOptions(KeyboardCapitalization.Words),
                     cursorBrush = SolidColor(MaterialTheme.colorScheme.onSurfaceVariant)
@@ -160,19 +160,54 @@ fun BookInfoInfoSection(
                     tint = MaterialTheme.colorScheme.onSurfaceVariant
                 )
                 Spacer(modifier = Modifier.width(4.dp))
-                SelectionContainer {
+
+                if (!state.value.editAuthor) {
                     Text(
                         state.value.book.author.asString(),
                         color = MaterialTheme.colorScheme.onSurfaceVariant,
                         style = MaterialTheme.typography.bodyLarge,
                         modifier = Modifier
-                            .fillMaxWidth(),
+                            .fillMaxWidth()
+                            .combinedClickable(
+                                interactionSource = remember { MutableInteractionSource() },
+                                indication = null,
+                                onClick = {},
+                                onLongClick = {
+                                    onEvent(BookInfoEvent.OnShowHideEditAuthor)
+                                }
+                            ),
                         maxLines = 1,
                         overflow = TextOverflow.Ellipsis
                     )
+                } else {
+                    BasicTextField(
+                        singleLine = true,
+                        value = state.value.authorValue,
+                        textStyle = MaterialTheme.typography.bodyLarge.copy(
+                            color = MaterialTheme.colorScheme.onSurfaceVariant
+                        ),
+                        onValueChange = {
+                            if (it.length < 50 || it.length < state.value.authorValue.length) {
+                                onEvent(BookInfoEvent.OnAuthorValueChange(it))
+                            }
+                        },
+                        modifier = Modifier
+                            .focusRequester(authorFocusRequester)
+                            .onGloballyPositioned {
+                                onEvent(BookInfoEvent.OnAuthorRequestFocus(authorFocusRequester))
+                            },
+                        keyboardOptions = KeyboardOptions(KeyboardCapitalization.Words),
+                        cursorBrush = SolidColor(MaterialTheme.colorScheme.onSurfaceVariant)
+                    ) { innerText ->
+                        Box(
+                            modifier = Modifier.fillMaxWidth(),
+                            contentAlignment = Alignment.CenterStart
+                        ) {
+                            innerText()
+                        }
+                    }
                 }
             }
-
         }
     }
 }

app/src/main/java/ua/acclorite/book_story/presentation/screens/book_info/components/BookInfoTopBar.kt

@@ -0,0 +1,188 @@
+package ua.acclorite.book_story.presentation.screens.book_info.components
+
+import androidx.compose.animation.core.tween
+import androidx.compose.animation.fadeOut
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.lazy.LazyListState
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.automirrored.filled.ArrowBack
+import androidx.compose.material.icons.filled.Done
+import androidx.compose.material.icons.filled.Refresh
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.SnackbarHostState
+import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBarScrollBehavior
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.State
+import androidx.compose.runtime.derivedStateOf
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.remember
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.style.TextOverflow
+import ua.acclorite.book_story.R
+import ua.acclorite.book_story.domain.util.OnNavigate
+import ua.acclorite.book_story.presentation.components.AnimatedTopAppBar
+import ua.acclorite.book_story.presentation.components.CustomAnimatedVisibility
+import ua.acclorite.book_story.presentation.components.CustomIconButton
+import ua.acclorite.book_story.presentation.components.GoBackButton
+import ua.acclorite.book_story.presentation.screens.book_info.data.BookInfoEvent
+import ua.acclorite.book_story.presentation.screens.book_info.data.BookInfoState
+import ua.acclorite.book_story.presentation.screens.history.data.HistoryEvent
+import ua.acclorite.book_story.presentation.screens.library.data.LibraryEvent
+import ua.acclorite.book_story.presentation.ui.DefaultTransition
+import ua.acclorite.book_story.presentation.ui.Transitions
+
+/**
+ * Book Info Top Bar.
+ *
+ * @param state [BookInfoState].
+ * @param onEvent [BookInfoEvent] callback.
+ * @param onLibraryEvent [LibraryEvent] callback.
+ * @param onHistoryEvent [HistoryEvent] callback.
+ * @param onNavigate Navigator callback.
+ * @param scrollBehavior [TopAppBarScrollBehavior].
+ * @param listState [LazyListState].
+ * @param snackbarState [SnackbarHostState].
+ */
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun BookInfoTopBar(
+    state: State<BookInfoState>,
+    onEvent: (BookInfoEvent) -> Unit,
+    onLibraryEvent: (LibraryEvent) -> Unit,
+    onHistoryEvent: (HistoryEvent) -> Unit,
+    onNavigate: OnNavigate,
+    scrollBehavior: TopAppBarScrollBehavior,
+    listState: LazyListState,
+    snackbarState: SnackbarHostState
+) {
+    val context = LocalContext.current
+    val firstVisibleItemIndex by remember { derivedStateOf { listState.firstVisibleItemIndex } }
+
+    AnimatedTopAppBar(
+        containerColor = Color.Transparent,
+        scrollBehavior = scrollBehavior,
+        isTopBarScrolled = null,
+
+        content1NavigationIcon = {
+            if (
+                state.value.editTitle ||
+                state.value.editAuthor ||
+                state.value.editDescription
+            ) {
+                CustomIconButton(
+                    icon = Icons.AutoMirrored.Filled.ArrowBack,
+                    contentDescription = R.string.exit_editing_content_desc,
+                    disableOnClick = true
+                ) {
+                    if (state.value.editTitle) {
+                        onEvent(BookInfoEvent.OnShowHideEditTitle)
+                    }
+
+                    if (state.value.editAuthor) {
+                        onEvent(BookInfoEvent.OnShowHideEditAuthor)
+                    }
+
+                    if (state.value.editDescription) {
+                        onEvent(BookInfoEvent.OnShowHideEditDescription)
+                    }
+                }
+            } else {
+                GoBackButton(onNavigate = onNavigate, enabled = !state.value.isRefreshing) {
+                    onEvent(BookInfoEvent.OnCancelUpdate)
+                }
+            }
+        },
+        content1Title = {
+            DefaultTransition(
+                firstVisibleItemIndex > 0 && !state.value.editTitle
+            ) {
+                Text(
+                    state.value.book.title,
+                    style = MaterialTheme.typography.titleLarge,
+                    color = MaterialTheme.colorScheme.onSurface,
+                    overflow = TextOverflow.Ellipsis,
+                    maxLines = 1
+                )
+            }
+        },
+        content1Actions = {
+            CustomIconButton(
+                icon = Icons.Default.Refresh,
+                contentDescription = R.string.refresh_book_content_desc,
+                disableOnClick = false,
+                enabled = !state.value.isRefreshing && !state.value.isLoadingUpdate
+            ) {
+                onEvent(
+                    BookInfoEvent.OnLoadUpdate(
+                        snackbarState,
+                        context
+                    )
+                )
+            }
+
+            Box {
+                DefaultTransition(
+                    visible = !state.value.editTitle &&
+                            !state.value.editAuthor &&
+                            !state.value.editDescription
+                ) {
+                    BookInfoMoreDropDown(
+                        state = state,
+                        onEvent = onEvent,
+                        snackbarState = snackbarState
+                    )
+                }
+                CustomAnimatedVisibility(
+                    visible = state.value.editTitle ||
+                            state.value.editAuthor ||
+                            state.value.editDescription,
+                    enter = Transitions.DefaultTransitionIn,
+                    exit = fadeOut(tween(200))
+                ) {
+                    CustomIconButton(
+                        icon = Icons.Default.Done,
+                        contentDescription = R.string.apply_changes_content_desc,
+                        disableOnClick = true,
+                        enabled = !state.value.isRefreshing &&
+                                (state.value.titleValue.isNotBlank() &&
+                                        state.value.titleValue.trim() !=
+                                        state.value.book.title.trim()) ||
+
+                                (state.value.authorValue.isNotBlank() &&
+                                        state.value.authorValue.trim() !=
+                                        state.value.book.author.getAsString()?.trim()) ||
+
+                                (state.value.descriptionValue.isNotBlank() &&
+                                        state.value.descriptionValue.trim() !=
+                                        state.value.book.description?.trim()),
+
+                        color = if ((state.value.titleValue.isNotBlank() &&
+                                    state.value.titleValue.trim() !=
+                                    state.value.book.title.trim()) ||
+
+                            (state.value.authorValue.isNotBlank() &&
+                                    state.value.authorValue.trim() !=
+                                    state.value.book.author.getAsString()?.trim()) ||
+
+                            (state.value.descriptionValue.isNotBlank() &&
+                                    state.value.descriptionValue.trim() !=
+                                    state.value.book.description?.trim())
+                        ) MaterialTheme.colorScheme.onSurface
+                        else MaterialTheme.colorScheme.onSurfaceVariant
+                    ) {
+                        onEvent(
+                            BookInfoEvent.OnUpdateData(
+                                refreshList = {
+                                    onLibraryEvent(LibraryEvent.OnUpdateBook(it))
+                                    onHistoryEvent(HistoryEvent.OnUpdateBook(it))
+                                }
+                            ))
+                    }
+                }
+            }
+        }
+    )
+}

app/src/main/java/ua/acclorite/book_story/presentation/screens/book_info/data/BookInfoEvent.kt

@@ -23,10 +23,21 @@ sealed class BookInfoEvent {
         val refreshList: (Book) -> Unit,
         val showResult: (UIText) -> Unit
     ) : BookInfoEvent()
+
     data object OnShowHideEditTitle : BookInfoEvent()
-    data class OnRequestFocus(val focusRequester: FocusRequester) : BookInfoEvent()
+    data class OnTitleRequestFocus(val focusRequester: FocusRequester) : BookInfoEvent()
     data class OnTitleValueChange(val value: String) : BookInfoEvent()
-    data class OnUpdateTitle(val refreshList: (Book) -> Unit) : BookInfoEvent()
+
+    data object OnShowHideEditAuthor : BookInfoEvent()
+    data class OnAuthorRequestFocus(val focusRequester: FocusRequester) : BookInfoEvent()
+    data class OnAuthorValueChange(val value: String) : BookInfoEvent()
+
+    data object OnShowHideEditDescription : BookInfoEvent()
+    data class OnDescriptionRequestFocus(val focusRequester: FocusRequester) : BookInfoEvent()
+    data class OnDescriptionValueChange(val value: String) : BookInfoEvent()
+
+    data class OnUpdateData(val refreshList: (Book) -> Unit) : BookInfoEvent()
+
     data object OnShowHideDeleteDialog : BookInfoEvent()
     data object OnShowHideMoveDialog : BookInfoEvent()
     data class OnDeleteBook(val refreshList: () -> Unit, val onNavigate: OnNavigate) :

app/src/main/java/ua/acclorite/book_story/presentation/screens/book_info/data/BookInfoState.kt

@@ -18,9 +18,17 @@ data class BookInfoState(
     val textChanged: Boolean = false,
 
     val editTitle: Boolean = false,
-    val hasFocused: Boolean = false,
+    val hasTitleFocused: Boolean = false,
     val titleValue: String = "",
 
+    val editAuthor: Boolean = false,
+    val hasAuthorFocused: Boolean = false,
+    val authorValue: String = "",
+
+    val editDescription: Boolean = false,
+    val hasDescriptionFocused: Boolean = false,
+    val descriptionValue: String = "",
+
     val showChangeCoverBottomSheet: Boolean = false,
     val canResetCover: Boolean = false,
 

app/src/main/java/ua/acclorite/book_story/presentation/screens/book_info/data/BookInfoViewModel.kt

@@ -165,7 +165,7 @@ class BookInfoViewModel @Inject constructor(
                         _state.update {
                             it.copy(
                                 titleValue = it.book.title,
-                                hasFocused = false
+                                hasTitleFocused = false
                             )
                         }
                     }
@@ -178,12 +178,12 @@ class BookInfoViewModel @Inject constructor(
                 }
             }
 
-            is BookInfoEvent.OnRequestFocus -> {
-                if (!_state.value.hasFocused) {
+            is BookInfoEvent.OnTitleRequestFocus -> {
+                if (!_state.value.hasTitleFocused) {
                     event.focusRequester.requestFocus()
                     _state.update {
                         it.copy(
-                            hasFocused = true
+                            hasTitleFocused = true
                         )
                     }
                 }
@@ -197,25 +197,129 @@ class BookInfoViewModel @Inject constructor(
                 }
             }
 
-            is BookInfoEvent.OnUpdateTitle -> {
-                viewModelScope.launch {
-                    val title = _state.value.titleValue.trim().replace("\n", "")
+            is BookInfoEvent.OnShowHideEditAuthor -> {
+                viewModelScope.launch(Dispatchers.IO) {
+                    val shouldHide = _state.value.editAuthor
+
+                    if (!shouldHide) {
+                        _state.update {
+                            it.copy(
+                                authorValue = it.book.author.getAsString() ?: "",
+                                hasAuthorFocused = false
+                            )
+                        }
+                    }
 
-                    updateBooks.execute(
-                        listOf(
-                            _state.value.book.copy(title = title)
-                        )
-                    )
                     _state.update {
                         it.copy(
-                            book = it.book.copy(
-                                title = title
+                            editAuthor = !shouldHide
+                        )
+                    }
+                }
+            }
+
+            is BookInfoEvent.OnAuthorRequestFocus -> {
+                if (!_state.value.hasAuthorFocused) {
+                    event.focusRequester.requestFocus()
+                    _state.update {
+                        it.copy(
+                            hasAuthorFocused = true
+                        )
+                    }
+                }
+            }
+
+            is BookInfoEvent.OnAuthorValueChange -> {
+                _state.update {
+                    it.copy(
+                        authorValue = event.value
+                    )
+                }
+            }
+
+            is BookInfoEvent.OnShowHideEditDescription -> {
+                viewModelScope.launch(Dispatchers.IO) {
+                    val shouldHide = _state.value.editDescription
+
+                    if (!shouldHide) {
+                        _state.update {
+                            it.copy(
+                                descriptionValue = it.book.description ?: "",
+                                hasDescriptionFocused = false
                             )
+                        }
+                    }
+
+                    _state.update {
+                        it.copy(
+                            editDescription = !shouldHide
+                        )
+                    }
+                }
+            }
+
+            is BookInfoEvent.OnDescriptionRequestFocus -> {
+                if (!_state.value.hasDescriptionFocused) {
+                    event.focusRequester.requestFocus()
+                    _state.update {
+                        it.copy(
+                            hasDescriptionFocused = true
+                        )
+                    }
+                }
+            }
+
+            is BookInfoEvent.OnDescriptionValueChange -> {
+                _state.update {
+                    it.copy(
+                        descriptionValue = event.value
+                    )
+                }
+            }
+
+            is BookInfoEvent.OnUpdateData -> {
+                viewModelScope.launch {
+                    val title = _state.value.titleValue.trim().replace("\n", "")
+                    val author = _state.value.authorValue.trim().replace("\n", "")
+                    val description = _state.value.descriptionValue.trim().replace("\n", "")
+
+                    val titleChanged = title != _state.value.book.title
+                            && _state.value.editTitle
+                            && title.isNotBlank()
+                    val authorChanged = author != _state.value.book.author.getAsString()
+                            && _state.value.editAuthor
+                            && author.isNotBlank()
+                    val descriptionChanged = description != _state.value.book.description
+                            && _state.value.editDescription
+                            && description.isNotBlank()
+
+                    val book = _state.value.book.copy(
+                        title = if (titleChanged) title else _state.value.book.title,
+                        author = if (authorChanged) UIText.StringValue(author)
+                        else _state.value.book.author,
+                        description = if (descriptionChanged) description
+                        else _state.value.book.description
+                    )
+
+                    updateBooks.execute(listOf(book))
+                    _state.update {
+                        it.copy(
+                            book = book
                         )
                     }
                     event.refreshList(_state.value.book)
 
-                    onEvent(BookInfoEvent.OnShowHideEditTitle)
+                    if (state.value.editTitle) {
+                        onEvent(BookInfoEvent.OnShowHideEditTitle)
+                    }
+
+                    if (state.value.editAuthor) {
+                        onEvent(BookInfoEvent.OnShowHideEditAuthor)
+                    }
+
+                    if (state.value.editDescription) {
+                        onEvent(BookInfoEvent.OnShowHideEditDescription)
+                    }
                 }
             }
 
@@ -346,7 +450,9 @@ class BookInfoViewModel @Inject constructor(
                     _state.update {
                         it.copy(
                             isLoadingUpdate = true,
-                            editTitle = false
+                            editTitle = false,
+                            editAuthor = false,
+                            editDescription = false
                         )
                     }
 
@@ -708,10 +814,10 @@ class BookInfoViewModel @Inject constructor(
 
             _state.update {
                 BookInfoState(
-                    book = book,
-                    canResetCover = canResetCover.execute(screen.bookId)
+                    book = book
                 )
             }
+            onEvent(BookInfoEvent.OnCheckCoverReset)
         }
     }
 }

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

@@ -575,7 +575,7 @@
     <string name="arrow_anim_content_desc">Анімація стрілки</string>
     <string name="required_content_desc">Необхідно</string>
     <string name="reset_start_content_desc">Скинути початковий посібник</string>
-    <string name="hide_edit_title_content_desc">Вийти з редагування назви</string>
+    <string name="exit_editing_content_desc">Вийти з режиму редагування</string>
     <string name="open_in_web_content_desc">Відкрити в браузері</string>
     <string name="translator_content_desc">Перекладач</string>
     <string name="translator_language_content_desc">Поміняти мови місцями</string>

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

@@ -596,7 +596,7 @@
     <string name="arrow_anim_content_desc">Arrow animation</string>
     <string name="required_content_desc">Required</string>
     <string name="reset_start_content_desc">Reset start guide</string>
-    <string name="hide_edit_title_content_desc">Exit title editing</string>
+    <string name="exit_editing_content_desc">Exit editing mode</string>
     <string name="open_in_web_content_desc">Open in web</string>
     <string name="translator_content_desc">Translator</string>
     <string name="translator_language_content_desc">Change language places</string>