Some tweaks on Updates screen (#7729)

Based on #7708, #7709 and #7717

Co-Authored-By: Ivan Iskandar <12537387+ivaniskandar@users.noreply.github.com>
Co-Authored-By: Andreas <6576096+ghostbear@users.noreply.github.com>

Co-authored-by: Ivan Iskandar <12537387+ivaniskandar@users.noreply.github.com>
Co-authored-by: Andreas <6576096+ghostbear@users.noreply.github.com>

app/src/main/java/eu/kanade/presentation/updates/UpdatesScreen.kt

@@ -24,6 +24,11 @@ import androidx.compose.material3.TopAppBarScrollBehavior
 import androidx.compose.material3.rememberTopAppBarState
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.input.nestedscroll.nestedScroll
 import androidx.compose.ui.platform.LocalContext
@@ -49,7 +54,9 @@ import eu.kanade.tachiyomi.ui.recent.updates.UpdatesPresenter
 import eu.kanade.tachiyomi.ui.recent.updates.UpdatesPresenter.Dialog
 import eu.kanade.tachiyomi.ui.recent.updates.UpdatesPresenter.Event
 import eu.kanade.tachiyomi.util.system.toast
+import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.collectLatest
+import kotlinx.coroutines.launch
 import java.util.Date
 
 @Composable
@@ -115,9 +122,20 @@ fun UpdateScreen(
         val contentPaddingWithNavBar = (if (presenter.selectionMode) PaddingValues() else bottomNavPaddingValues) +
             contentPadding + WindowInsets.navigationBars.only(WindowInsetsSides.Bottom).asPaddingValues()
 
+        val scope = rememberCoroutineScope()
+        var isRefreshing by remember { mutableStateOf(false) }
+
         SwipeRefresh(
-            state = rememberSwipeRefreshState(isRefreshing = false),
-            onRefresh = onUpdateLibrary,
+            state = rememberSwipeRefreshState(isRefreshing = isRefreshing),
+            onRefresh = {
+                onUpdateLibrary()
+                scope.launch {
+                    // Fake refresh status but hide it after a second as it's a long running task
+                    isRefreshing = true
+                    delay(1000)
+                    isRefreshing = false
+                }
+            },
             swipeEnabled = presenter.selectionMode.not(),
             indicatorPadding = contentPaddingWithNavBar,
             indicator = { s, trigger ->

app/src/main/java/eu/kanade/tachiyomi/ui/recent/updates/UpdatesController.kt

@@ -54,8 +54,13 @@ class UpdatesController :
 
     // Let compose view handle this
     override fun handleBack(): Boolean {
-        (activity as? OnBackPressedDispatcherOwner)?.onBackPressedDispatcher?.onBackPressed()
-        return true
+        val dispatcher = (activity as? OnBackPressedDispatcherOwner)?.onBackPressedDispatcher ?: return false
+        return if (dispatcher.hasEnabledCallbacks()) {
+            dispatcher.onBackPressed()
+            true
+        } else {
+            false
+        }
     }
 
     private fun onBackClicked() {

app/src/main/java/eu/kanade/tachiyomi/ui/recent/updates/UpdatesPresenter.kt

@@ -157,13 +157,12 @@ class UpdatesPresenter(
      * @param download download object containing progress.
      */
     private fun updateDownloadState(download: Download) {
-        val uiModels = state.uiModels
-        val modifiedIndex = uiModels.indexOfFirst {
-            it is UpdatesUiModel.Item && it.item.update.chapterId == download.chapter.id
-        }
-        if (modifiedIndex < 0) return
-
         state.uiModels = uiModels.toMutableList().apply {
+            val modifiedIndex = uiModels.indexOfFirst {
+                it is UpdatesUiModel.Item && it.item.update.chapterId == download.chapter.id
+            }
+            if (modifiedIndex < 0) return@apply
+
             var uiModel = removeAt(modifiedIndex)
             if (uiModel is UpdatesUiModel.Item) {
                 val item = uiModel.item.copy(
@@ -249,7 +248,6 @@ class UpdatesPresenter(
                 downloadManager.deleteChapters(chapters, manga, source).mapNotNull { it.id }
             }
 
-            val uiModels = state.uiModels
             val deletedUpdates = uiModels.filter {
                 it is UpdatesUiModel.Item && deletedIds.contains(it.item.update.chapterId)
             }
@@ -279,16 +277,15 @@ class UpdatesPresenter(
         userSelected: Boolean = false,
         fromLongPress: Boolean = false,
     ) {
-        val uiModels = state.uiModels
-        val modifiedIndex = uiModels.indexOfFirst {
-            it is UpdatesUiModel.Item && it.item.update.chapterId == item.update.chapterId
-        }
-        if (modifiedIndex < 0) return
-
-        val oldItem = (uiModels[modifiedIndex] as? UpdatesUiModel.Item)?.item ?: return
-        if ((oldItem.selected && selected) || (!oldItem.selected && !selected)) return
-
         state.uiModels = uiModels.toMutableList().apply {
+            val modifiedIndex = indexOfFirst {
+                it is UpdatesUiModel.Item && it.item == item
+            }
+            if (modifiedIndex < 0) return@apply
+
+            val oldItem = (get(modifiedIndex) as? UpdatesUiModel.Item)?.item ?: return@apply
+            if ((oldItem.selected && selected) || (!oldItem.selected && !selected)) return@apply
+
             val firstSelection = none { it is UpdatesUiModel.Item && it.item.selected }
             var newItem = (removeAt(modifiedIndex) as? UpdatesUiModel.Item)?.item?.copy(selected = selected) ?: return@apply
             add(modifiedIndex, UpdatesUiModel.Item(newItem))