Load custom emojis from host

app/src/main/java/chat/rocket/android/app/RocketChatApplication.kt

@@ -19,7 +19,6 @@ import chat.rocket.android.server.domain.GetCurrentServerInteractor
 import chat.rocket.android.server.domain.GetSettingsInteractor
 import chat.rocket.android.server.domain.SITE_URL
 import chat.rocket.android.server.domain.TokenRepository
-import chat.rocket.android.emoji.EmojiRepository
 import com.crashlytics.android.Crashlytics
 import com.crashlytics.android.core.CrashlyticsCore
 import com.facebook.drawee.backends.pipeline.DraweeConfig
@@ -87,7 +86,6 @@ class RocketChatApplication : Application(), HasActivityInjector, HasServiceInje
         context = WeakReference(applicationContext)
 
         AndroidThreeTen.init(this)
-        EmojiRepository.load(this)
 
         setupCrashlytics()
         setupFresco()

app/src/main/java/chat/rocket/android/chatrooms/presentation/ChatRoomsPresenter.kt

@@ -80,7 +80,9 @@ class ChatRoomsPresenter @Inject constructor(
                 } else {
                     val id = if (isDirectMessage && !open) {
                         retryIO("createDirectMessage($name)") {
-                            client.createDirectMessage(name)
+                            client.createDirectMessage(name, callback = { b, s ->
+
+                            })
                         }
                         val fromTo = mutableListOf(myself.id, id).apply {
                             sort()

app/src/main/java/chat/rocket/android/main/presentation/MainPresenter.kt

 package chat.rocket.android.main.presentation
 
+import android.content.Context
 import chat.rocket.android.core.lifecycle.CancelStrategy
 import chat.rocket.android.db.DatabaseManagerFactory
+import chat.rocket.android.emoji.Emoji
+import chat.rocket.android.emoji.EmojiRepository
+import chat.rocket.android.emoji.Fitzpatrick
+import chat.rocket.android.emoji.internal.EmojiCategory
 import chat.rocket.android.infrastructure.LocalRepository
 import chat.rocket.android.main.uimodel.NavHeaderUiModel
 import chat.rocket.android.main.uimodel.NavHeaderUiModelMapper
@@ -27,6 +32,7 @@ import chat.rocket.common.model.UserStatus
 import chat.rocket.common.util.ifNull
 import chat.rocket.core.RocketChatClient
 import chat.rocket.core.internal.realtime.setDefaultStatus
+import chat.rocket.core.internal.rest.getCustomEmojis
 import chat.rocket.core.internal.rest.logout
 import chat.rocket.core.internal.rest.me
 import chat.rocket.core.internal.rest.unregisterPushToken
@@ -116,6 +122,33 @@ class MainPresenter @Inject constructor(
         }
     }
 
+    fun loadEmojis() {
+        launchUI(strategy) {
+            val customEmojiList = mutableListOf<Emoji>()
+            try {
+                for (customEmoji in client.getCustomEmojis()) {
+                    customEmojiList.add(Emoji(
+                        shortname = ":${customEmoji.name}:",
+                        category = EmojiCategory.CUSTOM.name,
+                        url = "$currentServer/emoji-custom/${customEmoji.name}.${customEmoji.extension}",
+                        count = 0,
+                        fitzpatrick = Fitzpatrick.Default,
+                        keywords = customEmoji.aliases,
+                        shortnameAlternates = customEmoji.aliases,
+                        siblings = mutableListOf(),
+                        unicode = ""
+                    ))
+
+                }
+
+                EmojiRepository.load(view as Context, customEmojis = customEmojiList)
+            } catch (ex: RocketChatException) {
+                Timber.e(ex)
+                EmojiRepository.load(view as Context)
+            }
+        }
+    }
+
     /**
      * Logout from current server.
      */

app/src/main/java/chat/rocket/android/main/ui/MainActivity.kt

@@ -77,6 +77,7 @@ class MainActivity : AppCompatActivity(), MainView, HasActivityInjector,
         presenter.connect()
         presenter.loadServerAccounts()
         presenter.loadCurrentInfo()
+        presenter.loadEmojis()
         setupToolbar()
         setupNavigationView()
     }

emoji/src/main/java/chat/rocket/android/emoji/Emoji.kt

@@ -8,5 +8,6 @@ data class Emoji(
     val category: String,
     val count: Int = 0,
     val siblings: MutableCollection<Emoji> = mutableListOf(),
-    val fitzpatrick: Fitzpatrick = Fitzpatrick.Default
+    val fitzpatrick: Fitzpatrick = Fitzpatrick.Default,
+    val url: String? = null // Filled for custom emojis
 )

emoji/src/main/java/chat/rocket/android/emoji/EmojiRepository.kt

@@ -3,12 +3,8 @@ package chat.rocket.android.emoji
 import android.content.Context
 import android.content.SharedPreferences
 import android.graphics.Typeface
-import android.os.SystemClock
 import chat.rocket.android.emoji.internal.EmojiCategory
 import chat.rocket.android.emoji.internal.PREF_EMOJI_RECENTS
-import kotlinx.coroutines.experimental.CommonPool
-import kotlinx.coroutines.experimental.withContext
-import kotlinx.coroutines.experimental.yield
 import org.json.JSONArray
 import org.json.JSONObject
 import java.io.BufferedReader
@@ -16,6 +12,7 @@ import java.io.InputStream
 import java.io.InputStreamReader
 import java.util.*
 import java.util.regex.Pattern
+import kotlin.collections.ArrayList
 import kotlin.coroutines.experimental.buildSequence
 
 object EmojiRepository {
@@ -27,14 +24,24 @@ object EmojiRepository {
     private lateinit var preferences: SharedPreferences
     internal lateinit var cachedTypeface: Typeface
 
-    fun load(context: Context, path: String = "emoji.json") {
+    fun load(context: Context, customEmojis: List<Emoji> = emptyList(), path: String = "emoji.json") {
         preferences = context.getSharedPreferences("emoji", Context.MODE_PRIVATE)
         ALL_EMOJIS.clear()
         cachedTypeface = Typeface.createFromAsset(context.assets, "fonts/emojione-android.ttf")
         val stream = context.assets.open(path)
-        val emojis = loadEmojis(stream)
-        emojis.forEach { emoji ->
+        val emojis = loadEmojis(stream).also {
+            it.addAll(customEmojis)
+        }.toList()
+
+        for (emoji in emojis) {
             val unicodeIntList = mutableListOf<Int>()
+
+            // If empty it's a custom emoji.
+            if (emoji.unicode.isEmpty()) {
+                ALL_EMOJIS.add(emoji)
+                continue
+            }
+
             emoji.unicode.split("-").forEach {
                 val value = it.toInt(16)
                 if (value >= 0x10000) {
@@ -95,7 +102,7 @@ object EmojiRepository {
 
     internal fun getEmojiSequenceByCategory(category: EmojiCategory): Sequence<Emoji> {
         val list = ALL_EMOJIS.filter { it.category.toLowerCase() == category.name.toLowerCase() }
-        return buildSequence{
+        return buildSequence {
             list.forEach {
                 yield(it)
             }
@@ -163,7 +170,7 @@ object EmojiRepository {
         return result
     }
 
-    private fun loadEmojis(stream: InputStream): List<Emoji> {
+    private fun loadEmojis(stream: InputStream): MutableList<Emoji> {
         val emojisJSON = JSONArray(inputStreamToString(stream))
         val emojis = ArrayList<Emoji>(emojisJSON.length());
         for (i in 0 until emojisJSON.length()) {

emoji/src/main/java/chat/rocket/android/emoji/internal/EmojiCategory.kt

@@ -7,7 +7,7 @@ import chat.rocket.android.emoji.EmojiRepository
 import chat.rocket.android.emoji.EmojiTypefaceSpan
 import chat.rocket.android.emoji.R
 
-internal enum class EmojiCategory {
+enum class EmojiCategory {
     RECENTS {
         override fun resourceIcon() = R.drawable.ic_emoji_recents