Disable buttons when processing actions in the feed dialogs

app/src/main/java/org/schabi/newpipe/local/subscription/dialog/FeedGroupDialog.kt

@@ -27,7 +27,7 @@ import org.schabi.newpipe.R
 import org.schabi.newpipe.database.feed.model.FeedGroupEntity
 import org.schabi.newpipe.database.subscription.SubscriptionEntity
 import org.schabi.newpipe.local.subscription.FeedGroupIcon
-import org.schabi.newpipe.local.subscription.dialog.FeedGroupDialogViewModel.FeedDialogEvent
+import org.schabi.newpipe.local.subscription.dialog.FeedGroupDialogViewModel.DialogEvent.*
 import org.schabi.newpipe.local.subscription.item.EmptyPlaceholderItem
 import org.schabi.newpipe.local.subscription.item.PickerIconItem
 import org.schabi.newpipe.local.subscription.item.PickerSubscriptionItem
@@ -95,9 +95,10 @@ class FeedGroupDialog : DialogFragment() {
 
         viewModel.groupLiveData.observe(viewLifecycleOwner, Observer(::handleGroup))
         viewModel.subscriptionsLiveData.observe(viewLifecycleOwner, Observer { setupSubscriptionPicker(it.first, it.second) })
-        viewModel.successLiveData.observe(viewLifecycleOwner, Observer {
+        viewModel.dialogEventLiveData.observe(viewLifecycleOwner, Observer {
             when (it) {
-                is FeedDialogEvent.SuccessEvent -> dismiss()
+                ProcessingEvent -> disableInput()
+                SuccessEvent -> dismiss()
             }
         })
 
@@ -331,6 +332,15 @@ class FeedGroupDialog : DialogFragment() {
         group_name_input.clearFocus()
     }
 
+    private fun disableInput() {
+        delete_button?.isEnabled = false
+        confirm_button?.isEnabled = false
+        cancel_button?.isEnabled = false
+        isCancelable = false
+
+        hideKeyboard()
+    }
+
     companion object {
         private const val KEY_GROUP_ID = "KEY_GROUP_ID"
         private const val NO_GROUP_SELECTED = -1L

app/src/main/java/org/schabi/newpipe/local/subscription/dialog/FeedGroupDialogViewModel.kt

@@ -4,9 +4,9 @@ import android.content.Context
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.ViewModelProvider
+import io.reactivex.Completable
 import io.reactivex.Flowable
-import io.reactivex.android.schedulers.AndroidSchedulers
-import io.reactivex.disposables.CompositeDisposable
+import io.reactivex.disposables.Disposable
 import io.reactivex.functions.BiFunction
 import io.reactivex.schedulers.Schedulers
 import org.schabi.newpipe.database.feed.model.FeedGroupEntity
@@ -29,9 +29,9 @@ class FeedGroupDialogViewModel(applicationContext: Context, val groupId: Long =
 
     val groupLiveData = MutableLiveData<FeedGroupEntity>()
     val subscriptionsLiveData = MutableLiveData<Pair<List<SubscriptionEntity>, Set<Long>>>()
-    val successLiveData = MutableLiveData<FeedDialogEvent>()
+    val dialogEventLiveData = MutableLiveData<DialogEvent>()
 
-    private val disposables = CompositeDisposable()
+    private var actionProcessingDisposable: Disposable? = null
 
     private var feedGroupDisposable = feedDatabaseManager.getGroup(groupId)
             .subscribeOn(Schedulers.io())
@@ -45,35 +45,39 @@ class FeedGroupDialogViewModel(applicationContext: Context, val groupId: Long =
 
     override fun onCleared() {
         super.onCleared()
+        actionProcessingDisposable?.dispose()
         subscriptionsDisposable.dispose()
         feedGroupDisposable.dispose()
-        disposables.dispose()
     }
 
     fun createGroup(name: String, selectedIcon: FeedGroupIcon, selectedSubscriptions: Set<Long>) {
-        disposables.add(feedDatabaseManager.createGroup(name, selectedIcon)
-                .flatMapCompletable { feedDatabaseManager.updateSubscriptionsForGroup(it, selectedSubscriptions.toList()) }
-                .subscribeOn(Schedulers.io())
-                .observeOn(AndroidSchedulers.mainThread())
-                .subscribe { successLiveData.postValue(FeedDialogEvent.SuccessEvent) })
+        doAction(feedDatabaseManager.createGroup(name, selectedIcon)
+                .flatMapCompletable {
+                    feedDatabaseManager.updateSubscriptionsForGroup(it, selectedSubscriptions.toList())
+                })
     }
 
     fun updateGroup(name: String, selectedIcon: FeedGroupIcon, selectedSubscriptions: Set<Long>, sortOrder: Long) {
-        disposables.add(feedDatabaseManager.updateSubscriptionsForGroup(groupId, selectedSubscriptions.toList())
-                .andThen(feedDatabaseManager.updateGroup(FeedGroupEntity(groupId, name, selectedIcon, sortOrder)))
-                .subscribeOn(Schedulers.io())
-                .observeOn(AndroidSchedulers.mainThread())
-                .subscribe { successLiveData.postValue(FeedDialogEvent.SuccessEvent) })
+        doAction(feedDatabaseManager.updateSubscriptionsForGroup(groupId, selectedSubscriptions.toList())
+                .andThen(feedDatabaseManager.updateGroup(FeedGroupEntity(groupId, name, selectedIcon, sortOrder))))
     }
 
     fun deleteGroup() {
-        disposables.add(feedDatabaseManager.deleteGroup(groupId)
-                .subscribeOn(Schedulers.io())
-                .observeOn(AndroidSchedulers.mainThread())
-                .subscribe { successLiveData.postValue(FeedDialogEvent.SuccessEvent) })
+        doAction(feedDatabaseManager.deleteGroup(groupId))
     }
 
-    sealed class FeedDialogEvent {
-        object SuccessEvent : FeedDialogEvent()
+    private fun doAction(completable: Completable) {
+        if (actionProcessingDisposable == null) {
+            dialogEventLiveData.value = DialogEvent.ProcessingEvent
+
+            actionProcessingDisposable = completable
+                    .subscribeOn(Schedulers.io())
+                    .subscribe { dialogEventLiveData.postValue(DialogEvent.SuccessEvent) }
+        }
+    }
+
+    sealed class DialogEvent {
+        object ProcessingEvent : DialogEvent()
+        object SuccessEvent : DialogEvent()
     }
 }

app/src/main/java/org/schabi/newpipe/local/subscription/dialog/FeedGroupReorderDialog.kt

@@ -19,7 +19,7 @@ import icepick.State
 import kotlinx.android.synthetic.main.dialog_feed_group_reorder.*
 import org.schabi.newpipe.R
 import org.schabi.newpipe.database.feed.model.FeedGroupEntity
-import org.schabi.newpipe.local.subscription.dialog.FeedGroupReorderDialogViewModel.DialogEvent.SuccessEvent
+import org.schabi.newpipe.local.subscription.dialog.FeedGroupReorderDialogViewModel.DialogEvent.*
 import org.schabi.newpipe.local.subscription.item.FeedGroupReorderItem
 import org.schabi.newpipe.util.ThemeHelper
 import java.util.*
@@ -50,7 +50,8 @@ class FeedGroupReorderDialog : DialogFragment() {
         viewModel.groupsLiveData.observe(viewLifecycleOwner, Observer(::handleGroups))
         viewModel.dialogEventLiveData.observe(viewLifecycleOwner, Observer {
             when (it) {
-                is SuccessEvent -> dismiss()
+                ProcessingEvent -> disableInput()
+                SuccessEvent -> dismiss()
             }
         })
 
@@ -81,6 +82,11 @@ class FeedGroupReorderDialog : DialogFragment() {
         groupAdapter.update(groupList.map { FeedGroupReorderItem(it, itemTouchHelper) })
     }
 
+    private fun disableInput() {
+        confirm_button?.isEnabled = false
+        isCancelable = false
+    }
+
     private fun getItemTouchCallback(): SimpleCallback {
         return object : TouchCallback() {
 

app/src/main/java/org/schabi/newpipe/local/subscription/dialog/FeedGroupReorderDialogViewModel.kt

@@ -3,8 +3,8 @@ package org.schabi.newpipe.local.subscription.dialog
 import android.app.Application
 import androidx.lifecycle.AndroidViewModel
 import androidx.lifecycle.MutableLiveData
-import io.reactivex.android.schedulers.AndroidSchedulers
-import io.reactivex.disposables.CompositeDisposable
+import io.reactivex.Completable
+import io.reactivex.disposables.Disposable
 import io.reactivex.schedulers.Schedulers
 import org.schabi.newpipe.database.feed.model.FeedGroupEntity
 import org.schabi.newpipe.local.feed.FeedDatabaseManager
@@ -15,7 +15,7 @@ class FeedGroupReorderDialogViewModel(application: Application) : AndroidViewMod
     val groupsLiveData = MutableLiveData<List<FeedGroupEntity>>()
     val dialogEventLiveData = MutableLiveData<DialogEvent>()
 
-    private val disposables = CompositeDisposable()
+    private var actionProcessingDisposable: Disposable? = null
 
     private var groupsDisposable = feedDatabaseManager.groups()
             .limit(1)
@@ -24,18 +24,26 @@ class FeedGroupReorderDialogViewModel(application: Application) : AndroidViewMod
 
     override fun onCleared() {
         super.onCleared()
+        actionProcessingDisposable?.dispose()
         groupsDisposable.dispose()
-        disposables.dispose()
     }
 
     fun updateOrder(groupIdList: List<Long>) {
-        disposables.add(feedDatabaseManager.updateGroupsOrder(groupIdList)
-                .subscribeOn(Schedulers.io())
-                .observeOn(AndroidSchedulers.mainThread())
-                .subscribe { dialogEventLiveData.postValue(DialogEvent.SuccessEvent) })
+        doAction(feedDatabaseManager.updateGroupsOrder(groupIdList))
+    }
+
+    private fun doAction(completable: Completable) {
+        if (actionProcessingDisposable == null) {
+            dialogEventLiveData.value = DialogEvent.ProcessingEvent
+
+            actionProcessingDisposable = completable
+                    .subscribeOn(Schedulers.io())
+                    .subscribe { dialogEventLiveData.postValue(DialogEvent.SuccessEvent) }
+        }
     }
 
     sealed class DialogEvent {
+        object ProcessingEvent : DialogEvent()
         object SuccessEvent : DialogEvent()
     }
 }