Merge pull request #1205 from bemusementpark/disable-unblock

Disable unblock button

app/src/main/java/org/thoughtcrime/securesms/database/RecipientDatabase.java

@@ -276,7 +276,7 @@ public class RecipientDatabase extends Database {
     notifyRecipientListeners();
   }
 
-  public void setBlocked(@NonNull List<Recipient> recipients, boolean blocked) {
+  public void setBlocked(@NonNull Iterable<Recipient> recipients, boolean blocked) {
     SQLiteDatabase db = getWritableDatabase();
     db.beginTransaction();
     try {

app/src/main/java/org/thoughtcrime/securesms/database/Storage.kt

@@ -1010,7 +1010,7 @@ class Storage(context: Context, helper: SQLCipherOpenHelper) : Database(context,
         DatabaseComponent.get(context).reactionDatabase().deleteMessageReactions(MessageId(messageId, mms))
     }
 
-    override fun unblock(toUnblock: List<Recipient>) {
+    override fun unblock(toUnblock: Iterable<Recipient>) {
         val recipientDb = DatabaseComponent.get(context).recipientDatabase()
         recipientDb.setBlocked(toUnblock, false)
     }

app/src/main/java/org/thoughtcrime/securesms/preferences/BlockedContactsActivity.kt

@@ -2,7 +2,6 @@ package org.thoughtcrime.securesms.preferences
 
 import android.app.AlertDialog
 import android.os.Bundle
-import android.view.View
 import androidx.activity.viewModels
 import androidx.core.view.isVisible
 import dagger.hilt.android.AndroidEntryPoint
@@ -11,58 +10,26 @@ import network.loki.messenger.databinding.ActivityBlockedContactsBinding
 import org.thoughtcrime.securesms.PassphraseRequiredActionBarActivity
 
 @AndroidEntryPoint
-class BlockedContactsActivity: PassphraseRequiredActionBarActivity(), View.OnClickListener {
+class BlockedContactsActivity: PassphraseRequiredActionBarActivity() {
 
     lateinit var binding: ActivityBlockedContactsBinding
 
     val viewModel: BlockedContactsViewModel by viewModels()
 
-    val adapter = BlockedContactsAdapter()
+    val adapter: BlockedContactsAdapter by lazy { BlockedContactsAdapter(viewModel) }
 
-    override fun onClick(v: View?) {
-        if (v === binding.unblockButton && adapter.getSelectedItems().isNotEmpty()) {
-            val contactsToUnblock = adapter.getSelectedItems()
-            // show dialog
-            val title = if (contactsToUnblock.size == 1) {
-                getString(R.string.Unblock_dialog__title_single, contactsToUnblock.first().name)
-            } else {
-                getString(R.string.Unblock_dialog__title_multiple)
-            }
+    fun unblock() {
+        // show dialog
+        val title = viewModel.getTitle(this)
 
-            val message = if (contactsToUnblock.size == 1) {
-                getString(R.string.Unblock_dialog__message, contactsToUnblock.first().name)
-            } else {
-                val stringBuilder = StringBuilder()
-                val iterator = contactsToUnblock.iterator()
-                var numberAdded = 0
-                while (iterator.hasNext() && numberAdded < 3) {
-                    val nextRecipient = iterator.next()
-                    if (numberAdded > 0) stringBuilder.append(", ")
-                    
-                    stringBuilder.append(nextRecipient.name)
-                    numberAdded++
-                }
-                val overflow = contactsToUnblock.size - numberAdded
-                if (overflow > 0) {
-                    stringBuilder.append(" ")
-                    val string = resources.getQuantityString(R.plurals.Unblock_dialog__message_multiple_overflow, overflow)
-                    stringBuilder.append(string.format(overflow))
-                }
-                getString(R.string.Unblock_dialog__message, stringBuilder.toString())
-            }
+        val message = viewModel.getMessage(this)
 
-            AlertDialog.Builder(this)
-                .setTitle(title)
-                .setMessage(message)
-                .setPositiveButton(R.string.continue_2) { d, _ ->
-                    viewModel.unblock(contactsToUnblock)
-                    d.dismiss()
-                }
-                .setNegativeButton(R.string.cancel) { d, _ ->
-                    d.dismiss()
-                }
-                .show()
-        }
+        AlertDialog.Builder(this)
+            .setTitle(title)
+            .setMessage(message)
+            .setPositiveButton(R.string.continue_2) { _, _ -> viewModel.unblock() }
+            .setNegativeButton(R.string.cancel) { _, _ -> }
+            .show()
     }
 
     override fun onCreate(savedInstanceState: Bundle?, ready: Boolean) {
@@ -73,15 +40,15 @@ class BlockedContactsActivity: PassphraseRequiredActionBarActivity(), View.OnCli
         binding.recyclerView.adapter = adapter
 
         viewModel.subscribe(this)
-            .observe(this) { newState ->
-                adapter.submitList(newState.blockedContacts)
-                val isEmpty = newState.blockedContacts.isEmpty()
-                binding.emptyStateMessageTextView.isVisible = isEmpty
-                binding.nonEmptyStateGroup.isVisible = !isEmpty
+            .observe(this) { state ->
+                adapter.submitList(state.items)
+                binding.emptyStateMessageTextView.isVisible = state.emptyStateMessageTextViewVisible
+                binding.nonEmptyStateGroup.isVisible = state.nonEmptyStateGroupVisible
+                binding.unblockButton.isEnabled = state.unblockButtonEnabled
             }
 
-        binding.unblockButton.setOnClickListener(this)
+        binding.unblockButton.setOnClickListener { unblock() }
 
     }
-
-}
+}
+    

app/src/main/java/org/thoughtcrime/securesms/preferences/BlockedContactsAdapter.kt

@@ -10,38 +10,30 @@ import network.loki.messenger.R
 import network.loki.messenger.databinding.BlockedContactLayoutBinding
 import org.session.libsession.utilities.recipients.Recipient
 import org.thoughtcrime.securesms.mms.GlideApp
+import org.thoughtcrime.securesms.util.adapter.SelectableItem
 
-class BlockedContactsAdapter: ListAdapter<Recipient,BlockedContactsAdapter.ViewHolder>(RecipientDiffer()) {
+typealias SelectableRecipient = SelectableItem<Recipient>
 
-    class RecipientDiffer: DiffUtil.ItemCallback<Recipient>() {
-        override fun areItemsTheSame(oldItem: Recipient, newItem: Recipient) = oldItem === newItem
-        override fun areContentsTheSame(oldItem: Recipient, newItem: Recipient) = oldItem == newItem
+class BlockedContactsAdapter(val viewModel: BlockedContactsViewModel) : ListAdapter<SelectableRecipient,BlockedContactsAdapter.ViewHolder>(RecipientDiffer()) {
+
+    class RecipientDiffer: DiffUtil.ItemCallback<SelectableRecipient>() {
+        override fun areItemsTheSame(old: SelectableRecipient, new: SelectableRecipient) = old.item.address == new.item.address
+        override fun areContentsTheSame(old: SelectableRecipient, new: SelectableRecipient) = old.isSelected == new.isSelected
+        override fun getChangePayload(old: SelectableRecipient, new: SelectableRecipient) = new.isSelected
     }
 
-    private val selectedItems = mutableListOf<Recipient>()
-
-    fun getSelectedItems() = selectedItems
-
-    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
-        val itemView = LayoutInflater.from(parent.context).inflate(R.layout.blocked_contact_layout, parent, false)
-        return ViewHolder(itemView)
-    }
-
-    private fun toggleSelection(recipient: Recipient, isSelected: Boolean, position: Int) {
-        if (isSelected) {
-            selectedItems -= recipient
-        } else {
-            selectedItems += recipient
-        }
-        notifyItemChanged(position)
-    }
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder =
+        LayoutInflater.from(parent.context)
+            .inflate(R.layout.blocked_contact_layout, parent, false)
+            .let(::ViewHolder)
 
     override fun onBindViewHolder(holder: ViewHolder, position: Int) {
-        val recipient = getItem(position)
-        val isSelected = recipient in selectedItems
-        holder.bind(recipient, isSelected) {
-            toggleSelection(recipient, isSelected, position)
-        }
+        holder.bind(getItem(position), viewModel::toggle)
+    }
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int, payloads: MutableList<Any>) {
+        if (payloads.isEmpty()) holder.bind(getItem(position), viewModel::toggle)
+        else holder.select(getItem(position).isSelected)
     }
 
     override fun onViewRecycled(holder: ViewHolder) {
@@ -54,15 +46,18 @@ class BlockedContactsAdapter: ListAdapter<Recipient,BlockedContactsAdapter.ViewH
         val glide = GlideApp.with(itemView)
         val binding = BlockedContactLayoutBinding.bind(itemView)
 
-        fun bind(recipient: Recipient, isSelected: Boolean, toggleSelection: () -> Unit) {
-            binding.recipientName.text = recipient.name
+        fun bind(selectable: SelectableRecipient, toggle: (SelectableRecipient) -> Unit) {
+            binding.recipientName.text = selectable.item.name
             with (binding.profilePictureView.root) {
                 glide = this@ViewHolder.glide
-                update(recipient)
+                update(selectable.item)
             }
-            binding.root.setOnClickListener { toggleSelection() }
+            binding.root.setOnClickListener { toggle(selectable) }
+            binding.selectButton.isSelected = selectable.isSelected
+        }
+
+        fun select(isSelected: Boolean) {
             binding.selectButton.isSelected = isSelected
         }
     }
-
-}
+}

app/src/main/java/org/thoughtcrime/securesms/preferences/BlockedContactsViewModel.kt

@@ -17,9 +17,11 @@ import kotlinx.coroutines.flow.onStart
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.plus
 import kotlinx.coroutines.withContext
+import network.loki.messenger.R
 import org.session.libsession.utilities.recipients.Recipient
 import org.thoughtcrime.securesms.database.DatabaseContentProviders
 import org.thoughtcrime.securesms.database.Storage
+import org.thoughtcrime.securesms.util.adapter.SelectableItem
 import javax.inject.Inject
 
 @HiltViewModel
@@ -29,7 +31,9 @@ class BlockedContactsViewModel @Inject constructor(private val storage: Storage)
 
     private val listUpdateChannel = Channel<Unit>(capacity = Channel.CONFLATED)
 
-    private val _contacts = MutableLiveData(BlockedContactsViewState(emptyList()))
+    private val _state = MutableLiveData(BlockedContactsViewState())
+
+    val state get() = _state.value!!
 
     fun subscribe(context: Context): LiveData<BlockedContactsViewState> {
         executor.launch(IO) {
@@ -45,21 +49,74 @@ class BlockedContactsViewModel @Inject constructor(private val storage: Storage)
         }
         executor.launch(IO) {
             for (update in listUpdateChannel) {
-                val blockedContactState = BlockedContactsViewState(storage.blockedContacts().sortedBy { it.name })
+                val blockedContactState = state.copy(
+                    blockedContacts = storage.blockedContacts().sortedBy { it.name }
+                )
                 withContext(Main) {
-                    _contacts.value = blockedContactState
+                    _state.value = blockedContactState
                 }
             }
         }
-        return _contacts
+        return _state
     }
 
-    fun unblock(toUnblock: List<Recipient>) {
-        storage.unblock(toUnblock)
+    fun unblock() {
+        storage.unblock(state.selectedItems)
+        _state.value = state.copy(selectedItems = emptySet())
+    }
+
+    fun select(selectedItem: Recipient, isSelected: Boolean) {
+        _state.value = state.run {
+            if (isSelected) copy(selectedItems = selectedItems + selectedItem)
+            else copy(selectedItems = selectedItems - selectedItem)
+        }
+    }
+
+    fun getTitle(context: Context): String =
+        if (state.selectedItems.size == 1) {
+            context.getString(R.string.Unblock_dialog__title_single, state.selectedItems.first().name)
+        } else {
+            context.getString(R.string.Unblock_dialog__title_multiple)
+        }
+
+    fun getMessage(context: Context): String {
+        if (state.selectedItems.size == 1) {
+            return context.getString(R.string.Unblock_dialog__message, state.selectedItems.first().name)
+        }
+        val stringBuilder = StringBuilder()
+        val iterator = state.selectedItems.iterator()
+        var numberAdded = 0
+        while (iterator.hasNext() && numberAdded < 3) {
+            val nextRecipient = iterator.next()
+            if (numberAdded > 0) stringBuilder.append(", ")
+
+            stringBuilder.append(nextRecipient.name)
+            numberAdded++
+        }
+        val overflow = state.selectedItems.size - numberAdded
+        if (overflow > 0) {
+            stringBuilder.append(" ")
+            val string = context.resources.getQuantityString(R.plurals.Unblock_dialog__message_multiple_overflow, overflow)
+            stringBuilder.append(string.format(overflow))
+        }
+       return context.getString(R.string.Unblock_dialog__message, stringBuilder.toString())
+    }
+
+    fun toggle(selectable: SelectableItem<Recipient>) {
+        _state.value = state.run {
+            if (selectable.item in selectedItems) copy(selectedItems = selectedItems - selectable.item)
+            else copy(selectedItems = selectedItems + selectable.item)
+        }
     }
 
     data class BlockedContactsViewState(
-        val blockedContacts: List<Recipient>
-    )
+        val blockedContacts: List<Recipient> = emptyList(),
+        val selectedItems: Set<Recipient> = emptySet()
+    ) {
+        val items = blockedContacts.map { SelectableItem(it, it in selectedItems) }
 
-}
+        val unblockButtonEnabled get() = selectedItems.isNotEmpty()
+        val emptyStateMessageTextViewVisible get() = blockedContacts.isEmpty()
+        val nonEmptyStateGroupVisible get() = blockedContacts.isNotEmpty()
+    }
+}

app/src/main/java/org/thoughtcrime/securesms/util/adapter/SelectableItem.kt

@@ -0,0 +1,3 @@
+package org.thoughtcrime.securesms.util.adapter
+
+data class SelectableItem<T>(val item: T, val isSelected: Boolean)