Add mention list feature.

app/src/main/java/chat/rocket/android/chatroom/presentation/ChatRoomNavigator.kt

@@ -14,6 +14,12 @@ class ChatRoomNavigator(internal val activity: ChatRoomActivity) {
         }
     }
 
+    fun toMentions(chatRoomId: String) {
+        activity.addFragmentBackStack("MentionsFragment", R.id.fragment_container) {
+            chat.rocket.android.mentions.ui.newInstance(chatRoomId)
+        }
+    }
+
     fun toPinnedMessageList(chatRoomId: String) {
         activity.addFragmentBackStack("PinnedMessages", R.id.fragment_container) {
             chat.rocket.android.pinnedmessages.ui.newInstance(chatRoomId)

app/src/main/java/chat/rocket/android/chatroom/presentation/ChatRoomPresenter.kt

@@ -713,6 +713,9 @@ class ChatRoomPresenter @Inject constructor(
     fun toMembersList(chatRoomId: String) =
         navigator.toMembersList(chatRoomId)
 
+    fun toMentions(chatRoomId: String) =
+        navigator.toMentions(chatRoomId)
+
     fun toPinnedMessageList(chatRoomId: String) =
         navigator.toPinnedMessageList(chatRoomId)
 

app/src/main/java/chat/rocket/android/chatroom/ui/ChatRoomFragment.kt

@@ -216,6 +216,9 @@ class ChatRoomFragment : Fragment(), ChatRoomView, EmojiKeyboardListener, EmojiR
             R.id.action_members_list -> {
                 presenter.toMembersList(chatRoomId)
             }
+            R.id.action_mentions -> {
+                presenter.toMentions(chatRoomId)
+            }
             R.id.action_pinned_messages -> {
                 presenter.toPinnedMessageList(chatRoomId)
             }

app/src/main/java/chat/rocket/android/dagger/module/ActivityBuilder.kt

@@ -19,6 +19,7 @@ import chat.rocket.android.files.di.FilesFragmentProvider
 import chat.rocket.android.main.di.MainModule
 import chat.rocket.android.main.ui.MainActivity
 import chat.rocket.android.members.di.MembersFragmentProvider
+import chat.rocket.android.mentions.di.MentionsFragmentProvider
 import chat.rocket.android.pinnedmessages.di.PinnedMessagesFragmentProvider
 import chat.rocket.android.profile.di.ProfileFragmentProvider
 import chat.rocket.android.server.di.ChangeServerModule
@@ -62,6 +63,7 @@ abstract class ActivityBuilder {
             ChatRoomModule::class,
             ChatRoomFragmentProvider::class,
             MembersFragmentProvider::class,
+            MentionsFragmentProvider::class,
             PinnedMessagesFragmentProvider::class,
             FavoriteMessagesFragmentProvider::class,
             FilesFragmentProvider::class

app/src/main/java/chat/rocket/android/files/presentation/FilesView.kt

@@ -8,7 +8,7 @@ import chat.rocket.android.files.uimodel.FileUiModel
 interface FilesView : MessageView, LoadingView {
 
     /**
-     * Show list of files for the current room.
+     * Shows the list of files for the current room.
      *
      * @param dataSet The data set to show.
      * @param total The total number of files.

app/src/main/java/chat/rocket/android/mentions/di/MentionsFragmentModule.kt

+package chat.rocket.android.mentions.di
+
+import androidx.lifecycle.LifecycleOwner
+import chat.rocket.android.core.lifecycle.CancelStrategy
+import chat.rocket.android.dagger.scope.PerFragment
+import chat.rocket.android.mentions.presentention.MentionsView
+import chat.rocket.android.mentions.ui.MentionsFragment
+import dagger.Module
+import dagger.Provides
+import kotlinx.coroutines.experimental.Job
+
+@Module
+class MentionsFragmentModule {
+
+    @Provides
+    @PerFragment
+    fun provideJob() = Job()
+
+    @Provides
+    @PerFragment
+    fun provideLifecycleOwner(frag: MentionsFragment): LifecycleOwner {
+        return frag
+    }
+
+    @Provides
+    @PerFragment
+    fun provideCancelStrategy(owner: LifecycleOwner, jobs: Job): CancelStrategy {
+        return CancelStrategy(owner, jobs)
+    }
+
+    @Provides
+    @PerFragment
+    fun provideMentionsView(frag: MentionsFragment): MentionsView {
+        return frag
+    }
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/mentions/di/MentionsFragmentProvider.kt

+package chat.rocket.android.mentions.di
+
+import chat.rocket.android.dagger.scope.PerFragment
+import chat.rocket.android.mentions.ui.MentionsFragment
+import dagger.Module
+import dagger.android.ContributesAndroidInjector
+
+@Module
+abstract class MentionsFragmentProvider {
+
+    @ContributesAndroidInjector(modules = [MentionsFragmentModule::class])
+    @PerFragment
+    abstract fun provideMentionsFragment(): MentionsFragment
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/mentions/presentention/MentionsPresenter.kt

+package chat.rocket.android.mentions.presentention
+
+import chat.rocket.android.chatroom.uimodel.UiModelMapper
+import chat.rocket.android.core.lifecycle.CancelStrategy
+import chat.rocket.android.server.domain.ChatRoomsInteractor
+import chat.rocket.android.server.domain.GetCurrentServerInteractor
+import chat.rocket.android.server.infraestructure.RocketChatClientFactory
+import chat.rocket.android.util.extensions.launchUI
+import chat.rocket.common.RocketChatException
+import chat.rocket.common.util.ifNull
+import chat.rocket.core.internal.rest.getMentions
+import timber.log.Timber
+import javax.inject.Inject
+
+class MentionsPresenter @Inject constructor(
+    private val view: MentionsView,
+    private val strategy: CancelStrategy,
+    private val roomsInteractor: ChatRoomsInteractor,
+    private val mapper: UiModelMapper,
+    val serverInteractor: GetCurrentServerInteractor,
+    val factory: RocketChatClientFactory
+) {
+    private val serverUrl = serverInteractor.get()!!
+    private val client = factory.create(serverUrl)
+    private var offset: Long = 0
+
+    /**
+     * Loads all mentions for the given room id.
+     *
+     * @param roomId The id of the room to get the mentions from.
+     */
+    fun loadMentions(roomId: String) {
+        launchUI(strategy) {
+            try {
+                view.showLoading()
+                roomsInteractor.getById(serverUrl, roomId)?.let {
+                    val mentions = client.getMentions(roomId, it.type, offset, 30)
+                    val mentionsList = mapper.map(mentions.result, asNotReversed = true)
+                    view.showMentions(mentionsList)
+                    offset += 1 * 30
+                }.ifNull {
+                    Timber.e("Couldn't find a room with id: $roomId at current server.")
+                }
+            } catch (exception: RocketChatException) {
+                Timber.e(exception)
+            } finally {
+                view.hideLoading()
+            }
+        }
+    }
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/mentions/presentention/MentionsView.kt

+package chat.rocket.android.mentions.presentention
+
+import chat.rocket.android.chatroom.uimodel.BaseUiModel
+import chat.rocket.android.core.behaviours.LoadingView
+import chat.rocket.android.core.behaviours.MessageView
+
+interface MentionsView : MessageView, LoadingView {
+
+    /**
+     * Shows the list of mentions for the current room.
+     *
+     * @param mentions The list of mentions.
+     */
+    fun showMentions(mentions: List<BaseUiModel<*>>)
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/mentions/ui/MentionsFragment.kt

+package chat.rocket.android.mentions.ui
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.core.view.isVisible
+import androidx.fragment.app.Fragment
+import androidx.recyclerview.widget.DefaultItemAnimator
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import chat.rocket.android.R
+import chat.rocket.android.chatroom.adapter.ChatRoomAdapter
+import chat.rocket.android.chatroom.ui.ChatRoomActivity
+import chat.rocket.android.chatroom.uimodel.BaseUiModel
+import chat.rocket.android.helper.EndlessRecyclerViewScrollListener
+import chat.rocket.android.mentions.presentention.MentionsPresenter
+import chat.rocket.android.mentions.presentention.MentionsView
+import chat.rocket.android.util.extensions.inflate
+import chat.rocket.android.util.extensions.showToast
+import chat.rocket.android.util.extensions.ui
+import dagger.android.support.AndroidSupportInjection
+import kotlinx.android.synthetic.main.fragment_mentions.*
+import javax.inject.Inject
+
+fun newInstance(chatRoomId: String): Fragment {
+    return MentionsFragment().apply {
+        arguments = Bundle(1).apply {
+            putString(BUNDLE_CHAT_ROOM_ID, chatRoomId)
+        }
+    }
+}
+
+private const val BUNDLE_CHAT_ROOM_ID = "chat_room_id"
+
+class MentionsFragment : Fragment(), MentionsView {
+
+    private lateinit var chatRoomId: String
+    private lateinit var adapter: ChatRoomAdapter
+    @Inject
+    lateinit var presenter: MentionsPresenter
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        AndroidSupportInjection.inject(this)
+
+        val bundle = arguments
+        if (bundle != null) {
+            chatRoomId = bundle.getString(BUNDLE_CHAT_ROOM_ID)
+        } else {
+            requireNotNull(bundle) { "no arguments supplied when the fragment was instantiated" }
+        }
+    }
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? = container?.inflate(R.layout.fragment_mentions)
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+        setupToolbar()
+        presenter.loadMentions(chatRoomId)
+    }
+
+    override fun showMentions(mentions: List<BaseUiModel<*>>) {
+        ui {
+            if (recycler_view.adapter == null) {
+                adapter = ChatRoomAdapter(enableActions = false)
+                recycler_view.adapter = adapter
+
+                val linearLayoutManager = LinearLayoutManager(context)
+                recycler_view.layoutManager = linearLayoutManager
+                recycler_view.itemAnimator = DefaultItemAnimator()
+                if (mentions.size >= 30) {
+                    recycler_view.addOnScrollListener(object :
+                        EndlessRecyclerViewScrollListener(linearLayoutManager) {
+                        override fun onLoadMore(
+                            page: Int,
+                            totalItemsCount: Int,
+                            recyclerView: RecyclerView
+                        ) {
+                            presenter.loadMentions(chatRoomId)
+                        }
+
+                    })
+                }
+                group_no_mention.isVisible = mentions.isEmpty()
+            }
+            adapter.appendData(mentions)
+        }
+    }
+
+    override fun showMessage(resId: Int) {
+        ui {
+            showToast(resId)
+        }
+    }
+
+    override fun showMessage(message: String) {
+        ui {
+            showToast(message)
+        }
+    }
+
+    override fun showGenericErrorMessage() = showMessage(getString(R.string.msg_generic_error))
+
+    override fun showLoading() {
+        ui { view_loading.isVisible = true }
+    }
+
+    override fun hideLoading() {
+        ui { view_loading.isVisible = false }
+    }
+
+    private fun setupToolbar() {
+        (activity as ChatRoomActivity).let {
+            it.showToolbarTitle(getString(R.string.msg_mentions))
+            it.hideToolbarChatRoomIcon()
+        }
+    }
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/pinnedmessages/di/PinnedMessagesFragmentModule.kt

-package chat.rocket.android.chatroom.di
+package chat.rocket.android.pinnedmessages.di
 
 import androidx.lifecycle.LifecycleOwner
 import chat.rocket.android.core.lifecycle.CancelStrategy

app/src/main/java/chat/rocket/android/pinnedmessages/di/PinnedMessagesFragmentProvider.kt

 package chat.rocket.android.pinnedmessages.di
 
 import chat.rocket.android.dagger.scope.PerFragment
-import chat.rocket.android.chatroom.di.PinnedMessagesFragmentModule
 import chat.rocket.android.pinnedmessages.ui.PinnedMessagesFragment
 import dagger.Module
 import dagger.android.ContributesAndroidInjector

app/src/main/res/layout/fragment_mentions.xml

+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/root_layout"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".mentions.ui.MentionsFragment">
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/recycler_view"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:scrollbars="vertical" />
+
+    <com.wang.avi.AVLoadingIndicatorView
+        android:id="@+id/view_loading"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:visibility="gone"
+        app:indicatorColor="@color/colorBlack"
+        app:indicatorName="BallPulseIndicator"
+        app:layout_constraintBottom_toBottomOf="@+id/recycler_view"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <ImageView
+        android:id="@+id/image_mention"
+        android:layout_width="100dp"
+        android:layout_height="100dp"
+        android:src="@drawable/ic_at_black_24dp"
+        android:tint="@color/icon_grey"
+        app:layout_constraintBottom_toTopOf="@+id/text_no_mention"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_chainStyle="packed" />
+
+    <TextView
+        android:id="@+id/text_no_mention"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="24dp"
+        android:text="@string/msg_no_mention"
+        android:textColor="@color/colorSecondaryText"
+        android:textSize="20sp"
+        android:textStyle="bold"
+        app:layout_constraintBottom_toTopOf="@+id/text_all_mentions_appear_here"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/image_mention" />
+
+    <TextView
+        android:id="@+id/text_all_mentions_appear_here"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="16dp"
+        android:text="@string/msg_all_the_mentions_appear_here"
+        android:textAlignment="center"
+        android:textColor="@color/colorSecondaryTextLight"
+        android:textSize="16sp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/text_no_mention" />
+
+    <androidx.constraintlayout.widget.Group
+        android:id="@+id/group_no_mention"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:visibility="gone"
+        app:constraint_referenced_ids="image_mention,text_no_mention,text_all_mentions_appear_here"
+        tools:visibility="visible" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file

app/src/main/res/menu/chatroom_actions.xml

@@ -7,6 +7,11 @@
         android:title="@string/title_members_list"
         app:showAsAction="never" />
 
+    <item
+        android:id="@+id/action_mentions"
+        android:title="@string/msg_mentions"
+        app:showAsAction="never" />
+
     <item
         android:id="@+id/action_pinned_messages"
         android:title="@string/title_pinned_messages"

app/src/main/res/values-es/strings.xml

@@ -191,6 +191,12 @@
     <!-- Members List -->
     <string name="title_members_list">Miembros</string>
 
+    <!-- Mentions -->
+    <!-- TODO Add proper translation-->
+    <string name="msg_mentions">Mentions</string>
+    <string name="msg_no_mention">No mention</string>
+    <string name="msg_all_the_mentions_appear_here">All the mentions\nappear here</string>
+
     <!-- Pinned Messages -->
     <string name="title_pinned_messages">Mensajes fijados</string>
     <string name="no_pinned_messages">Sin mensajes fijadas</string>

app/src/main/res/values-fr/strings.xml

@@ -192,6 +192,12 @@
     <!-- Members List -->
     <string name="title_members_list">Membres</string>
 
+    <!-- Mentions -->
+    <!-- TODO Add proper translation-->
+    <string name="msg_mentions">Mentions</string>
+    <string name="msg_no_mention">No mention</string>
+    <string name="msg_all_the_mentions_appear_here">All the mentions\nappear here</string>
+
     <!-- Pinned Messages -->
     <string name="title_pinned_messages">Messages épinglés</string>
     <string name="no_pinned_messages">Aucun message épinglé</string>

app/src/main/res/values-hi-rIN/strings.xml

@@ -178,6 +178,12 @@
     <!-- Members List -->
     <string name="title_members_list">सदस्य</string>
 
+    <!-- Mentions -->
+    <!-- TODO Add proper translation-->
+    <string name="msg_mentions">Mentions</string>
+    <string name="msg_no_mention">No mention</string>
+    <string name="msg_all_the_mentions_appear_here">All the mentions\nappear here</string>
+
     <!-- Pinned Messages -->
     <string name="title_pinned_messages">पिन किए गए संदेश</string>
     <string name="no_pinned_messages">कोई पिन संदेश नहीं</string>

app/src/main/res/values-pt-rBR/strings.xml

@@ -175,21 +175,26 @@
     <!-- Members List -->
     <string name="title_members_list">Membros</string>
 
+    <!-- Mentions -->
+    <string name="msg_mentions">Menções</string>
+    <string name="msg_no_mention">Nenhuma menção</string>
+    <string name="msg_all_the_mentions_appear_here">Todas menções\naparecerão aqui</string>
+
     <!-- Pinned Messages -->
     <string name="title_pinned_messages">Mensagens Pinadas</string>
     <string name="no_pinned_messages">Nenhuma mensagem pinada</string>
-    <string name="no_pinned_description">Todas as mensagens pinadas\naparecerão aqui</string>
+    <string name="no_pinned_description">Todas mensagens pinadas\naparecerão aqui</string>
 
     <!-- Favorite Messages -->
     <string name="title_favorite_messages">Messagens Favoritas</string>
     <string name="no_favorite_messages">Nenhuma messagem favorita</string>
-    <string name="no_favorite_description">Todas as mensagens favoritas\naparecerão aqui</string>
+    <string name="no_favorite_description">Todas mensagens favoritas\naparecerão aqui</string>
 
     <!-- Files -->
     <string name="msg_files">Arquivos</string>
     <string name="title_files_total">Arquivos (%d)</string>
     <string name="msg_no_files">Nenhum arquivo</string>
-    <string name="msg_all_files_appear_here">Todos os arquivos aparecerão aqui</string>
+    <string name="msg_all_files_appear_here">Todos arquivos aparecerão aqui</string>
 
     <!-- Upload Messages -->
     <string name="max_file_size_exceeded">Tamanho de arquivo (%1$d bytes) excedeu tamanho máximo de upload (%2$d bytes)</string>

app/src/main/res/values-uk-rRU/strings.xml

@@ -174,6 +174,12 @@
     <!-- Members List -->
     <string name="title_members_list">Пользователи</string>
 
+    <!-- Mentions -->
+    <!-- TODO Add proper translation-->
+    <string name="msg_mentions">Mentions</string>
+    <string name="msg_no_mention">No mention</string>
+    <string name="msg_all_the_mentions_appear_here">All the mentions\nappear here</string>
+
     <!-- Pinned Messages -->
     <string name="title_pinned_messages">Прикрепленные сообщения</string>
     <string name="no_pinned_messages">Нет прикрепленных сообщений</string>

app/src/main/res/values/strings.xml

@@ -174,6 +174,11 @@
     <!-- Members List -->
     <string name="title_members_list">Members</string>
 
+    <!-- Mentions -->
+    <string name="msg_mentions">Mentions</string>
+    <string name="msg_no_mention">No mention</string>
+    <string name="msg_all_the_mentions_appear_here">All the mentions\nappear here</string>
+
     <!-- Pinned Messages -->
     <string name="title_pinned_messages">Pinned Messages</string>
     <string name="no_pinned_messages">No pinned messages</string>