Minor cleanup

(cherry picked from commit b9fd01315bb692ab964d91d97f2196a1d4c2343d)

# Conflicts:
#	app/src/main/java/eu/kanade/tachiyomi/ui/browse/source/SourceController.kt

app/src/main/java/eu/kanade/tachiyomi/ui/browse/source/SourceController.kt

@@ -40,8 +40,7 @@ import eu.kanade.tachiyomi.util.system.toast
 import eu.kanade.tachiyomi.util.view.onAnimationsFinished
 import exh.ui.smartsearch.SmartSearchController
 import kotlinx.parcelize.Parcelize
-import uy.kohesive.injekt.Injekt
-import uy.kohesive.injekt.api.get
+import uy.kohesive.injekt.injectLazy
 
 /**
  * This controller shows and manages the different catalogues enabled by the user.
@@ -56,11 +55,8 @@ class SourceController(bundle: Bundle? = null) :
     SourceAdapter.OnSourceClickListener,
     /*SY -->*/ ChangeSourceCategoriesDialog.Listener /*SY <--*/ {
 
-    private val preferences: PreferencesHelper = Injekt.get()
+    private val preferences: PreferencesHelper by injectLazy()
 
-    /**
-     * Adapter containing sources.
-     */
     private var adapter: SourceAdapter? = null
 
     // EXH -->
@@ -172,18 +168,10 @@ class SourceController(bundle: Bundle? = null) :
         val isPinned = item.header?.code?.equals(SourcePresenter.PINNED_KEY) ?: false
 
         val items = mutableListOf(
-            Pair(
-                activity.getString(if (isPinned) R.string.action_unpin else R.string.action_pin),
-                { toggleSourcePin(item.source) }
-            )
+            activity.getString(if (isPinned) R.string.action_unpin else R.string.action_pin) to { toggleSourcePin(item.source) }
         )
         if (item.source !is LocalSource) {
-            items.add(
-                Pair(
-                    activity.getString(R.string.action_disable),
-                    { disableSource(item.source) }
-                )
-            )
+            items.add(activity.getString(R.string.action_disable) to { disableSource(item.source) })
         }
 
         // SY -->
@@ -191,27 +179,24 @@ class SourceController(bundle: Bundle? = null) :
 
         if (item.source.supportsLatest) {
             items.add(
-                Pair(
-                    activity.getString(if (isWatched) R.string.unwatch else R.string.watch),
-                    { watchCatalogue(item.source, isWatched) }
-                )
+                activity.getString(if (isWatched) R.string.unwatch else R.string.watch) to {
+                    watchCatalogue(item.source, isWatched)
+                }
             )
         }
 
         items.add(
-            Pair(
-                activity.getString(R.string.categories),
-                { addToCategories(item.source) }
-            )
+            activity.getString(R.string.categories) to { addToCategories(item.source) }
         )
 
         if (preferences.dataSaver().get()) {
             val isExcluded = item.source.id.toString() in preferences.dataSaverExcludedSources().get()
             items.add(
-                Pair(
-                    activity.getString(if (isExcluded) R.string.data_saver_stop_exclude else R.string.data_saver_exclude),
-                    { excludeFromDataSaver(item.source, isExcluded) }
-                )
+                activity.getString(
+                    if (isExcluded) R.string.data_saver_stop_exclude else R.string.data_saver_exclude
+                ) to {
+                    excludeFromDataSaver(item.source, isExcluded)
+                }
             )
         }
         // SY <--

app/src/main/java/eu/kanade/tachiyomi/ui/browse/source/SourcePresenter.kt

@@ -11,8 +11,6 @@ import kotlinx.coroutines.flow.drop
 import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.onEach
 import kotlinx.coroutines.flow.onStart
-import rx.Observable
-import rx.Subscription
 import uy.kohesive.injekt.Injekt
 import uy.kohesive.injekt.api.get
 import java.util.TreeMap
@@ -20,9 +18,6 @@ import java.util.TreeMap
 /**
  * Presenter of [SourceController]
  * Function calls should be done from here. UI calls should be done from the controller.
- *
- * @param sourceManager manages the different sources.
- * @param preferences application preferences.
  */
 class SourcePresenter(
     val sourceManager: SourceManager = Injekt.get(),
@@ -34,17 +29,10 @@ class SourcePresenter(
 
     var sources = getEnabledSources()
 
-    /**
-     * Subscription for retrieving enabled sources.
-     */
-    private var sourceSubscription: Subscription? = null
-
     /**
      * Unsubscribe and create a new subscription to fetch enabled sources.
      */
     private fun loadSources() {
-        sourceSubscription?.unsubscribe()
-
         val pinnedSources = mutableListOf<SourceItem>()
         val pinnedSourceIds = preferences.pinnedSources().get()
 
@@ -72,7 +60,7 @@ class SourcePresenter(
                 else -> d1.compareTo(d2)
             }
         }
-        val byLang = sources.groupByTo(map, { it.lang })
+        val byLang = sources.groupByTo(map) { it.lang }
         var sourceItems = byLang.flatMap {
             val langItem = LangItem(it.key)
             it.value.map { source ->
@@ -125,8 +113,7 @@ class SourcePresenter(
             sourceItems = pinnedSources + sourceItems
         }
 
-        sourceSubscription = Observable.just(sourceItems)
-            .subscribeLatestCache(SourceController::setSources)
+        view?.setSources(sourceItems)
     }
 
     private fun loadLastUsedSource() {

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryController.kt

@@ -644,7 +644,7 @@ class LibraryController(
         val common = presenter.getCommonCategories(mangas)
         // Get indexes of the mix categories to preselect.
         val mix = presenter.getMixCategories(mangas)
-        var preselected = categories.map {
+        val preselected = categories.map {
             when (it) {
                 in common -> QuadStateTextView.State.CHECKED.ordinal
                 in mix -> QuadStateTextView.State.INDETERMINATE.ordinal