Allow to refresh the entire library info (fixing empty covers after restoring backups). Closes #462

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

@@ -101,7 +101,7 @@ class LibraryCategoryView @JvmOverloads constructor(context: Context, attrs: Att
         swipe_refresh.setDistanceToTriggerSync((2 * 64 * resources.displayMetrics.density).toInt())
         swipe_refresh.setOnRefreshListener {
             if (!LibraryUpdateService.isRunning(context)) {
-                LibraryUpdateService.start(context, true, category)
+                LibraryUpdateService.start(context, category)
                 context.toast(R.string.updating_category)
             }
             // It can be a very long operation, so we disable swipe refresh and show a toast.

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

@@ -241,7 +241,7 @@ class LibraryFragment : BaseRxFragment<LibraryPresenter>(), ActionMode.Callback
             }
             R.id.action_library_display_mode -> swapDisplayMode()
             R.id.action_update_library -> {
-                LibraryUpdateService.start(activity, true)
+                LibraryUpdateService.start(activity)
             }
             R.id.action_edit_categories -> {
                 val intent = CategoryActivity.newIntent(activity)

app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsAdvancedFragment.kt

@@ -7,6 +7,7 @@ import com.afollestad.materialdialogs.MaterialDialog
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.cache.ChapterCache
 import eu.kanade.tachiyomi.data.database.DatabaseHelper
+import eu.kanade.tachiyomi.data.library.LibraryUpdateService
 import eu.kanade.tachiyomi.data.network.NetworkHelper
 import eu.kanade.tachiyomi.util.plusAssign
 import eu.kanade.tachiyomi.util.toast
@@ -38,6 +39,8 @@ class SettingsAdvancedFragment : SettingsFragment() {
 
     private val clearCookies by lazy { findPreference(getString(R.string.pref_clear_cookies_key)) }
 
+    private val refreshMetadata by lazy { findPreference(getString(R.string.pref_refresh_library_metadata_key)) }
+
     override fun onViewCreated(view: View, savedState: Bundle?) {
         super.onViewCreated(view, savedState)
 
@@ -57,6 +60,11 @@ class SettingsAdvancedFragment : SettingsFragment() {
             clearDatabase()
             true
         }
+
+        refreshMetadata.setOnPreferenceClickListener {
+            LibraryUpdateService.start(context, details = true)
+            true
+        }
     }
 
     private fun clearChapterCache() {

app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsGeneralFragment.kt

@@ -15,6 +15,7 @@ import eu.kanade.tachiyomi.widget.preference.LibraryColumnsDialog
 import eu.kanade.tachiyomi.widget.preference.SimpleDialogPreference
 import net.xpece.android.support.preference.MultiSelectListPreference
 import rx.Observable
+import rx.android.schedulers.AndroidSchedulers
 import uy.kohesive.injekt.injectLazy
 
 class SettingsGeneralFragment : SettingsFragment(),
@@ -76,6 +77,15 @@ class SettingsGeneralFragment : SettingsFragment(),
             true
         }
 
+        updateRestriction.setOnPreferenceChangeListener { preference, newValue ->
+            // Post to event looper to allow the preference to be updated.
+            subscriptions += Observable.fromCallable {
+                LibraryUpdateTrigger.setupTask(context)
+            }.subscribeOn(AndroidSchedulers.mainThread()).subscribe()
+
+            true
+        }
+
         val dbCategories = db.getCategories().executeAsBlocking()
         categoryUpdate.apply {
             entries = dbCategories.map { it.name }.toTypedArray()