Merge branch 'develop-2.x' into newPR-update-readme

.circleci/config.yml

+version: 2
+jobs:
+  build-kotlin-sdk:
+    docker:
+      - image: circleci/android:api-27-alpha
+    environment:
+      JVM_OPTS: -Xmx3200m
+    steps:
+      - checkout
+      - run:
+          name: checkout Rocket.Chat.Kotlin.SDK
+          command: git clone https://github.com/RocketChat/Rocket.Chat.Kotlin.SDK.git ../Rocket.Chat.Kotlin.SDK
+      - run:
+          name: ANDROID_HOME
+          command: echo "sdk.dir="$ANDROID_HOME > local.properties 
+      - run:
+          name: Build Kotlin.SDK
+          command: pushd app/ ; ./build-sdk.sh ; popd
+      - save_cache:
+          paths:
+            - ~/.gradle
+          key: jars-{{ checksum "build.gradle" }}-{{ checksum  "app/build.gradle" }}-{{ checksum "player/build.gradle" }}
+      - save_cache:
+          paths:
+            - app/libs/
+            - ../Rocket.Chat.Kotlin.SDK/.last_commit_hash
+          key: kotlin-sdk-{{ .Revision }}
+      - store_artifacts:
+          path: app/libs/
+          destination: libs
+  code-analysis:
+    docker:
+      - image: circleci/android:api-27-alpha
+    environment:
+      JVM_OPTS: -Xmx3200m
+    steps:
+      - checkout
+      - run:
+          name: ANDROID_HOME
+          command: echo "sdk.dir="$ANDROID_HOME > local.properties 
+      - run:
+          name: checkout Rocket.Chat.Kotlin.SDK
+          command: git clone https://github.com/RocketChat/Rocket.Chat.Kotlin.SDK.git ../Rocket.Chat.Kotlin.SDK
+      - restore_cache:
+          key: kotlin-sdk-{{ .Revision }}
+      - restore_cache:
+          key: jars-{{ checksum "build.gradle" }}-{{ checksum  "app/build.gradle" }}-{{ checksum "player/build.gradle" }}
+      - run:
+          name: Download Dependencies
+          command: ./gradlew androidDependencies --quiet --console=plain
+      - save_cache:
+          paths:
+            - ~/.gradle
+          key: jars-{{ checksum "build.gradle" }}-{{ checksum  "app/build.gradle" }}-{{ checksum "player/build.gradle" }}
+      - run:
+          name: Run Lint #, Checkstyles, PMD, Findbugs...
+          command: ./gradlew lint
+      - run:
+          name: Run Unit test
+          command: echo ./gradlew test # TODO: Fix unit test errors soon...
+      - store_artifacts:
+          path: app/build/reports/
+          destination: reports
+  build-apk:
+    docker:
+      - image: circleci/android:api-27-alpha
+    environment:
+      JVM_OPTS: -Xmx3200m
+    steps:
+      - checkout
+      - run:
+          name: restore files from ENV
+          command: |
+            echo $ROCKET_JKS_BASE64 | base64 --decode > Rocket.jks
+            echo $ROCKET_PLAY_JSON | base64 --decode > app/rocket-chat.json
+      - run:
+          name: checkout Rocket.Chat.Kotlin.SDK
+          command: git clone https://github.com/RocketChat/Rocket.Chat.Kotlin.SDK.git ../Rocket.Chat.Kotlin.SDK
+      - restore_cache:
+          key: kotlin-sdk-{{ .Revision }}
+      - restore_cache:
+          key: jars-{{ checksum "build.gradle" }}-{{ checksum  "app/build.gradle" }}-{{ checksum "player/build.gradle" }}
+      - run:
+          name: Download Dependencies
+          command: ./gradlew androidDependencies --quiet --console=plain
+      - save_cache:
+          paths:
+            - ~/.gradle
+          key: jars-{{ checksum "build.gradle" }}-{{ checksum  "app/build.gradle" }}-{{ checksum "player/build.gradle" }}
+      - run:
+          name: Build APK
+          command: |
+            ./gradlew assembleRelease --quiet --console=plain --stacktrace
+      - store_artifacts:
+          path: app/build/outputs/apk
+          destination: apks
+
+workflows:
+  version: 2
+  build-deploy:
+    jobs:
+      - build-kotlin-sdk
+      - code-analysis:
+          requires:
+            - build-kotlin-sdk
+          filters:
+            branches:
+              ignore: # skip on merge commits.
+                - develop
+                - develop-2.x
+                - master
+      - build-apk:
+          requires:
+            - build-kotlin-sdk

app/build-sdk.sh

 #!/bin/bash
 
-CURRENT_DIR=`pwd`
+CURRENT_DIR=$(pwd)
 # The SDK dir should be 2 directories up in the tree, so we use dirname 2 times
 # to get the common parent dir of the SDK and the app
-GIT=`which git`
-tmp=`dirname $CURRENT_DIR`
-tmp=`dirname $tmp`
+GIT=$(which git)
+cd ../..
+tmp=$(pwd)
 SDK_DIR="$tmp/Rocket.Chat.Kotlin.SDK"
+cd "${CURRENT_DIR}"
 
 echo "CURRENT DIR: $CURRENT_DIR"
 echo "SDK DIR: $SDK_DIR"
 
-# check if there are changes not commited
+# check if there are changes not committed
 function git_stat {
-	local  __resultvar=$1
-	cd $SDK_DIR && $GIT diff --shortstat --exit-code
-	eval $__resultvar="'$?'"
+	local  resultVar=$1
+	cd "${SDK_DIR}" && "${GIT}" diff --shortstat --exit-code
+	eval ${resultVar}="'$?'"
 }
 
-# check for changes already on the index not commited
+# check for changes already on the index not committed
 function git_stat_cached {
-	local  __resultvar=$1
-	cd $SDK_DIR && $GIT diff --cached --shortstat --exit-code
-	eval $__resultvar="'$?'"
+	local  resultVar=$1
+	cd "${SDK_DIR}" && "${GIT}" diff --cached --shortstat --exit-code
+	eval ${resultVar}="'$?'"
 }
 
-# get the SHA of the lastest commit
+# get the SHA of the latest commit
 function git_sha {
-	temp_sha=`cd $SDK_DIR && $GIT rev-parse --short HEAD`
+	temp_sha=$(cd "${SDK_DIR}" && "${GIT}" rev-parse --short HEAD)
 	echo "$temp_sha"
 }
 
 function git_app_branch {
-	temp_branch=`cd $CURRENT_DIR && $GIT rev-parse --abbrev-ref HEAD`
+	temp_branch=$(cd "${CURRENT_DIR}" && "${GIT}" rev-parse --abbrev-ref HEAD)
 	echo "$temp_branch"
 }
 
-# check if the tree is dirty (has modifications not commited yet)
+# check if the tree is dirty (has modifications not committed yet)
 function check_git_dirty {
 	git_stat stat
 	git_stat_cached cached
 
-	if [ $stat -eq 0 ] && [ $cached -eq 0 ]; then
+	if [ ${stat} -eq 0 ] && [ ${cached} -eq 0 ]; then
 		echo "not dirty"
 		return 1
 	else
@@ -52,11 +53,11 @@ function check_git_dirty {
 
 # check if the saved last commit is the same as the latest SHA in the tree
 function check_last_commit {
-	if [ ! -f $SDK_DIR/.last_commit_hash ]; then
+	if [ ! -f ${SDK_DIR}/.last_commit_hash ]; then
 		echo "last_commit_hash not found"
 		return 0
 	fi
-	saved_hash=`cat $SDK_DIR/.last_commit_hash`
+	saved_hash=$(cat "${SDK_DIR}"/.last_commit_hash)
 	last_hash=$(git_sha)
 	#`cd $SDK_DIR && git rev-parse --short HEAD`
 	if [ "$saved_hash" == "$last_hash" ]; then
@@ -70,7 +71,7 @@ function check_last_commit {
 
 function checkout_matching_branch {
 	app_branch=$(git_app_branch)
-	cd $SDK_DIR && $GIT checkout $app_branch 1>/dev/null 2>/dev/null
+	cd "${SDK_DIR}" && "${GIT}" checkout "${app_branch}" 1>/dev/null 2>/dev/null
 }
 
 checkout_matching_branch
@@ -82,20 +83,20 @@ fi
 echo "CURRENT SHA: $SHA"
 
 # if the tree is not dirty, there is no new commit and the .jars are still there, just skip the build
-if ! check_git_dirty && ! check_last_commit && [ -f $CURRENT_DIR/libs/common-$SHA.jar ] && [ -f $CURRENT_DIR/libs/core-$SHA.jar ]; then
+if ! check_git_dirty && ! check_last_commit && [ -f "${CURRENT_DIR}"/libs/common-"${SHA}".jar ] && [ -f "${CURRENT_DIR}"/libs/core-"${SHA}".jar ]; then
 	echo "NO BUILD NEEDED"
 	exit 0
 fi
 
-cd $SDK_DIR && ./gradlew common:assemble && cd $CURRENT_DIR
-cd $SDK_DIR && ./gradlew core:assemble && cd $CURRENT_DIR
+cd "${SDK_DIR}" && ./gradlew common:assemble && cd "${CURRENT_DIR}"
+cd "${SDK_DIR}" && ./gradlew core:assemble && cd "${CURRENT_DIR}"
 
-rm $CURRENT_DIR/libs/common* $CURRENT_DIR/libs/core*
+rm "${CURRENT_DIR}"/libs/common* "${CURRENT_DIR}"/libs/core*
 
-mkdir -p $CURRENT_DIR/libs/
-cp -v $SDK_DIR/common/build/libs/common-0.1-SNAPSHOT.jar $CURRENT_DIR/libs/common-$SHA.jar
-cp -v $SDK_DIR/core/build/libs/core-0.1-SNAPSHOT.jar $CURRENT_DIR/libs/core-$SHA.jar
+mkdir -p "${CURRENT_DIR}"/libs/
+cp -v "${SDK_DIR}"/common/build/libs/common-0.1-SNAPSHOT.jar "${CURRENT_DIR}"/libs/common-"${SHA}".jar
+cp -v "${SDK_DIR}"/core/build/libs/core-0.1-SNAPSHOT.jar "${CURRENT_DIR}"/libs/core-"${SHA}".jar
 
-echo "$SHA" > $SDK_DIR/.last_commit_hash
+echo "$SHA" > "${SDK_DIR}"/.last_commit_hash
 
 exit 0
\ No newline at end of file

app/build.gradle

@@ -12,8 +12,8 @@ android {
         applicationId "chat.rocket.android"
         minSdkVersion 21
         targetSdkVersion versions.targetSdk
-        versionCode 1008
-        versionName "2.0.0-dev6"
+        versionCode 2000
+        versionName "2.0.0-alpha1"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
         multiDexEnabled true
     }
@@ -32,7 +32,6 @@ android {
             signingConfig signingConfigs.release
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
-            applicationIdSuffix ".dev"
         }
 
         debug {
@@ -59,6 +58,9 @@ dependencies {
     implementation libraries.design
     implementation libraries.constraintLayout
     implementation libraries.cardView
+    implementation libraries.flexbox
+
+    implementation libraries.androidKtx
 
     implementation libraries.dagger
     implementation libraries.daggerSupport
@@ -93,20 +95,13 @@ dependencies {
 
     implementation libraries.frescoImageViewer
 
-    implementation libraries.androidSvg
-
-    implementation libraries.aVLoadingIndicatorView
-
-    implementation libraries.textDrawable
-
     implementation libraries.markwon
-
     implementation libraries.markwonImageLoader
 
-    implementation libraries.moshiLazyAdapters
-
     implementation libraries.sheetMenu
 
+    implementation libraries.aVLoadingIndicatorView
+
     implementation('com.crashlytics.sdk.android:crashlytics:2.6.8@aar') {
         transitive = true
     }
@@ -126,7 +121,11 @@ kotlin {
 // FIXME - build and install the sdk into the app/libs directory
 // We were having some issues with the kapt generated files from the sdk when importing as a module
 task compileSdk(type:Exec) {
-    commandLine './build-sdk.sh'
+    if (System.getProperty('os.name').toLowerCase(Locale.ROOT).contains('windows')) {
+        commandLine 'cmd', '/c', 'build-sdk.sh'
+    } else {
+        commandLine './build-sdk.sh'
+    }
 }
 preBuild.dependsOn compileSdk
 

app/gradle/wrapper/gradle-wrapper.properties

+#Thu Feb 15 15:50:42 BRST 2018
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip

app/gradlew

+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"

app/gradlew.bat

+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

app/src/main/AndroidManifest.xml

@@ -37,18 +37,31 @@
 
         <activity
             android:name=".main.ui.MainActivity"
+            android:windowSoftInputMode="adjustResize|stateAlwaysHidden"
             android:theme="@style/AppTheme" />
 
         <activity
-            android:name=".webview.WebViewActivity"
+            android:name=".webview.ui.WebViewActivity"
+            android:windowSoftInputMode="adjustResize|stateAlwaysHidden"
+            android:theme="@style/AppTheme" />
+
+        <activity
+            android:name=".webview.cas.ui.CasWebViewActivity"
+            android:windowSoftInputMode="adjustResize|stateAlwaysHidden"
             android:theme="@style/AppTheme" />
 
         <activity
             android:name=".chatroom.ui.ChatRoomActivity"
+            android:windowSoftInputMode="adjustResize|stateAlwaysHidden"
             android:theme="@style/AppTheme" />
 
         <activity
             android:name=".chatroom.ui.PinnedMessagesActivity"
+            android:windowSoftInputMode="adjustResize|stateAlwaysHidden"
+            android:theme="@style/AppTheme" />
+
+        <activity
+            android:name=".settings.password.ui.PasswordActivity"
             android:theme="@style/AppTheme" />
 
         <receiver

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

 import android.content.Context
-import android.graphics.Typeface
 import android.graphics.drawable.Drawable
 import android.support.v4.content.ContextCompat
 import android.support.v4.graphics.drawable.DrawableCompat
 import android.widget.EditText
 import android.widget.TextView
 import chat.rocket.android.R
-import chat.rocket.android.helper.TextHelper
-import com.amulyakhare.textdrawable.TextDrawable
+import chat.rocket.common.model.UserStatus
 
 object DrawableHelper {
-    private val AVATAR_BACKGROUND_HEXADECIMAL_COLORS = intArrayOf(
-            0xFFF44336.toInt(), 0xFFE91E63.toInt(), 0xFF9C27B0.toInt(), 0xFF673AB7.toInt(), 0xFF3F51B5.toInt(),
-            0xFF2196F3.toInt(), 0xFF03A9F4.toInt(), 0xFF00BCD4.toInt(), 0xFF009688.toInt(), 0xFF4CAF50.toInt(),
-            0xFF8BC34A.toInt(), 0xFFCDDC39.toInt(), 0xFFFFC107.toInt(), 0xFFFF9800.toInt(), 0xFFFF5722.toInt(),
-            0xFF795548.toInt(), 0xFF9E9E9E.toInt(), 0xFF607D8B.toInt())
+
     /**
      * Returns a Drawable from its ID.
      *
@@ -85,7 +79,7 @@ object DrawableHelper {
      * @param drawables The array of Drawable.
      * @see compoundDrawable
      */
-    fun compoundDrawables(textView: Array<EditText>, drawables: Array<Drawable>) {
+    fun compoundDrawables(textView: Array<TextView>, drawables: Array<Drawable>) {
         if (textView.size != drawables.size) {
             return
         } else {
@@ -111,41 +105,16 @@ object DrawableHelper {
      * @param context The context.
      * @return The user status drawable.
      */
-    fun getUserStatusDrawable(userStatus: String, context: Context): Drawable {
+    fun getUserStatusDrawable(userStatus: UserStatus, context: Context): Drawable {
         val userStatusDrawable = getDrawableFromId(R.drawable.ic_user_status_black, context).mutate()
         wrapDrawable(userStatusDrawable)
         when (userStatus) {
-            // TODO: create a enum or check if it will come from the SDK
-            "online" -> tintDrawable(userStatusDrawable, context, R.color.colorUserStatusOnline)
-            "busy" -> tintDrawable(userStatusDrawable, context, R.color.colorUserStatusBusy)
-            "away" -> tintDrawable(userStatusDrawable, context, R.color.colorUserStatusAway)
-            "offline" -> tintDrawable(userStatusDrawable, context, R.color.colorUserStatusOffline)
+            is UserStatus.Online -> tintDrawable(userStatusDrawable, context, R.color.colorUserStatusOnline)
+            is UserStatus.Busy -> tintDrawable(userStatusDrawable, context, R.color.colorUserStatusBusy)
+            is UserStatus.Away -> tintDrawable(userStatusDrawable, context, R.color.colorUserStatusAway)
+            is UserStatus.Offline -> tintDrawable(userStatusDrawable, context, R.color.colorUserStatusOffline)
+            else -> tintDrawable(userStatusDrawable, context, R.color.colorUserStatusOffline)
         }
         return userStatusDrawable
     }
-
-    /**
-     * Returns a drawable with the first character from a string.
-     *
-     * @param string The string to get its first character and to get the avatar background color.
-     * @return A drawable with the string first character.
-     */
-    fun getTextDrawable(string: String): Drawable {
-        return TextDrawable.builder()
-                .beginConfig()
-                .useFont(Typeface.SANS_SERIF)
-                .endConfig()
-                .buildRoundRect(TextHelper.getFirstCharacter(string), getAvatarBackgroundColor(string), 4)
-    }
-
-    /**
-     * Returns a background color to be rendered on the avatar.
-     *
-     * @param string Gets the background color based on the provided string.
-     * @return A hexadecimal color.
-     * @see (Rocket.Chat/server/startup/avatar.js)
-     */
-    private fun getAvatarBackgroundColor(string: String): Int {
-        return AVATAR_BACKGROUND_HEXADECIMAL_COLORS[string.length % AVATAR_BACKGROUND_HEXADECIMAL_COLORS.size]
-    }
 }
\ No newline at end of file

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

@@ -9,6 +9,7 @@ import chat.rocket.android.helper.CrashlyticsTree
 import chat.rocket.android.server.domain.GetCurrentServerInteractor
 import chat.rocket.android.server.domain.MultiServerTokenRepository
 import chat.rocket.android.server.domain.SettingsRepository
+import chat.rocket.android.widget.emoji.EmojiRepository
 import chat.rocket.common.model.Token
 import chat.rocket.core.TokenRepository
 import com.crashlytics.android.Crashlytics
@@ -57,6 +58,7 @@ class RocketChatApplication : Application(), HasActivityInjector, HasServiceInje
         initCurrentServer()
 
         AndroidThreeTen.init(this)
+        EmojiRepository.load(this)
 
         setupCrashlytics()
         setupFresco()

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

-package chat.rocket.android.app
-
-data class User(val id: String,
-                val name: String,
-                val username: String,
-                val status: String,
-                val avatarUri: String)
\ No newline at end of file

app/src/main/java/chat/rocket/android/app/utils/ColorImage.kt

-package chat.rocket.android.app.utils
-
-import android.graphics.drawable.ColorDrawable
-import android.graphics.drawable.Drawable
-import android.support.annotation.ColorInt
-import android.support.annotation.Nullable
-import android.support.v4.graphics.ColorUtils
-import com.facebook.common.internal.ByteStreams
-import com.facebook.imageformat.ImageFormat
-import com.facebook.imageformat.ImageFormatCheckerUtils
-import com.facebook.imagepipeline.common.ImageDecodeOptions
-import com.facebook.imagepipeline.decoder.ImageDecoder
-import com.facebook.imagepipeline.drawable.DrawableFactory
-import com.facebook.imagepipeline.image.CloseableImage
-import com.facebook.imagepipeline.image.EncodedImage
-import com.facebook.imagepipeline.image.QualityInfo
-import java.io.IOException
-
-/**
- * Simple decoder that can decode color images that have the following format: <color>#FF5722</color>.
- *
- * @see {https://github.com/facebook/fresco/blob/master/samples/showcase/src/main/java/com/facebook/fresco/samples/showcase/imageformat/color/ColorImageExample.java}
- */
-object ColorImage {
-    // Custom ImageFormat for color images.
-    private val imageFormatColor = ImageFormat("IMAGE_FORMAT_COLOR", "color")
-    // XML color tag that our colors must start with.
-    val colorTag = "<color>"
-
-    /**
-     * Creates a new image format checker for [ColorImage.imageFormatColor].
-     *
-     * @return the image format checker.
-     */
-    fun createFormatChecker(): ImageFormat.FormatChecker = ColorFormatChecker()
-
-    /**
-     * Creates a new decoder that can decode [ColorImage.imageFormatColor] images.
-     *
-     * @return the decoder.
-     */
-    fun createDecoder(): ImageDecoder = ColorDecoder()
-
-    fun createDrawableFactory(): ColorDrawableFactory = ColorDrawableFactory()
-
-    /**
-     * Custom color format checker that verifies that the header of the file corresponds to our [ColorImage.colorTag].
-     */
-    class ColorFormatChecker : ImageFormat.FormatChecker {
-        private val header = ImageFormatCheckerUtils.asciiBytes(colorTag)
-
-        override fun getHeaderSize(): Int {
-            return header.size
-        }
-
-        @Nullable override fun determineFormat(headerBytes: ByteArray, headerSize: Int): ImageFormat? {
-            if (headerSize > getHeaderSize()) {
-                if (ImageFormatCheckerUtils.startsWithPattern(headerBytes, header)) {
-                    return imageFormatColor
-                }
-            }
-            return null
-        }
-    }
-
-    /**
-     * Custom closeable color image that holds a single color int value.
-     */
-    class CloseableColorImage(@field:ColorInt @get:ColorInt val color: Int) : CloseableImage() {
-        private var isClosed = false
-
-        override fun close() {
-            isClosed = true
-        }
-
-        override fun getSizeInBytes(): Int = 0
-
-        override fun isClosed(): Boolean = isClosed
-
-        override fun getWidth(): Int = 0
-
-        override fun getHeight(): Int = 0
-    }
-
-    /**
-     * Decodes a color XML tag: <color>#rrggbb</color>.
-     */
-    class ColorDecoder : ImageDecoder {
-
-        @Nullable override fun decode(encodedImage: EncodedImage, length: Int, qualityInfo: QualityInfo, options: ImageDecodeOptions): CloseableImage? {
-            try {
-                // Read the file as a string
-                val text = String(ByteStreams.toByteArray(encodedImage.inputStream))
-
-                // Check if the string matches "<color>#"
-                if (!text.startsWith(colorTag + "#")) {
-                    return null
-                }
-
-                // Parse the int value between # and <
-                val startIndex = colorTag.length + 1
-                val endIndex = text.lastIndexOf('<')
-                var color = Integer.parseInt(text.substring(startIndex, endIndex), 16)
-
-                // Add the alpha component so that we actually see the color
-                color = ColorUtils.setAlphaComponent(color, 255)
-
-                // Return the CloseableImage
-                return CloseableColorImage(color)
-            } catch (e: IOException) {
-                // TODO: are we using the android.util.Log for logging that type of errors? or should we use the SDK logger?
-                e.printStackTrace()
-            }
-            // Return nothing if an error occurred
-            return null
-        }
-    }
-
-    /**
-     * Color drawable factory that is able to render a [CloseableColorImage] by creating a new [ColorDrawable] for the given color.
-     */
-    class ColorDrawableFactory : DrawableFactory {
-
-        override fun supportsImageType(image: CloseableImage): Boolean {
-            // We can only handle CloseableColorImages.
-            return image is CloseableColorImage
-        }
-
-        @Nullable override fun createDrawable(image: CloseableImage): Drawable? {
-            // Just return a simple ColorDrawable with the given color value.
-            return ColorDrawable((image as CloseableColorImage).color)
-        }
-    }
-}
\ No newline at end of file

app/src/main/java/chat/rocket/android/app/utils/CustomImageFormatConfigurator.kt

-package chat.rocket.android.app.utils
-
-import com.facebook.drawee.backends.pipeline.DraweeConfig
-import com.facebook.imagepipeline.decoder.ImageDecoderConfig
-
-/**
- * Utility class to add custom decoders and drawable factories.
- *
- * @see {https://github.com/facebook/fresco/blob/master/samples/showcase/src/main/java/com/facebook/fresco/samples/showcase/CustomImageFormatConfigurator.java}
- */
-object CustomImageFormatConfigurator {
-
-    fun createImageDecoderConfig() : ImageDecoderConfig {
-        return ImageDecoderConfig.newBuilder()
-                .addDecodingCapability(SvgDecoder.svgFormat, SvgDecoder.SvgFormatChecker(), SvgDecoder.Decoder())
-                .build()
-    }
-
-    fun addCustomDrawableFactories(draweeConfigBuilder: DraweeConfig.Builder) {
-        // We always add the color drawable factory so that it can be used for image decoder overrides.
-        draweeConfigBuilder.addCustomDrawableFactory(ColorImage.createDrawableFactory())
-        draweeConfigBuilder.addCustomDrawableFactory(SvgDecoder.SvgDrawableFactory())
-    }
-}
\ No newline at end of file

app/src/main/java/chat/rocket/android/app/utils/SvgDecoder.kt

-package chat.rocket.android.app.utils
-
-import android.graphics.Rect
-import android.graphics.drawable.Drawable
-import android.graphics.drawable.PictureDrawable
-import android.support.annotation.Nullable
-import com.caverock.androidsvg.SVG
-import com.caverock.androidsvg.SVGParseException
-import com.facebook.imageformat.ImageFormat
-import com.facebook.imageformat.ImageFormatCheckerUtils
-import com.facebook.imagepipeline.common.ImageDecodeOptions
-import com.facebook.imagepipeline.decoder.ImageDecoder
-import com.facebook.imagepipeline.drawable.DrawableFactory
-import com.facebook.imagepipeline.image.CloseableImage
-import com.facebook.imagepipeline.image.EncodedImage
-import com.facebook.imagepipeline.image.QualityInfo
-
-/**
- * SVG example that defines all classes required to decode and render SVG images.
- *
- * @see {https://github.com/facebook/fresco/blob/master/samples/showcase/src/main/java/com/facebook/fresco/samples/showcase/imageformat/svg/SvgDecoderExample.java}
- */
-object SvgDecoder {
-    val svgFormat = ImageFormat("SVG_FORMAT", "svg")
-    // We do not include the closing ">" since there can be additional information.
-    private val headerTag = "<?xml"
-    private val possibleHeaderTags = arrayOf(ImageFormatCheckerUtils.asciiBytes("<svg"))
-
-    /**
-     * Custom SVG format checker that verifies that the header of the file corresponds to our [SvgDecoder.headerTag] or [SvgDecoder.possibleHeaderTags].
-     */
-    class SvgFormatChecker : ImageFormat.FormatChecker {
-        private val header = ImageFormatCheckerUtils.asciiBytes(headerTag)
-
-        override fun getHeaderSize(): Int {
-            return header.size
-        }
-
-        @Nullable override fun determineFormat(headerBytes: ByteArray, headerSize: Int): ImageFormat? {
-            if (headerSize > getHeaderSize()) {
-                if (ImageFormatCheckerUtils.startsWithPattern(headerBytes, header)) {
-                    return svgFormat
-                }
-
-                if (possibleHeaderTags.any { ImageFormatCheckerUtils.startsWithPattern(headerBytes, it) && ImageFormatCheckerUtils.indexOfPattern(headerBytes, headerBytes.size, header, header.size) > -1 }) {
-                    return svgFormat
-                }
-            }
-            return null
-        }
-    }
-
-    /**
-     * Custom closeable SVG image that holds a single SVG.
-     */
-    class CloseableSvgImage(val svg: SVG) : CloseableImage() {
-        private var isClose = false
-
-        override fun close() {
-            isClose = true
-        }
-
-        override fun getSizeInBytes(): Int = 0
-
-        override fun isClosed(): Boolean = isClose
-
-        override fun getWidth(): Int = 0
-
-        override fun getHeight(): Int = 0
-    }
-
-    /**
-     * Decodes a [SvgDecoder.svgFormat] image.
-     */
-    class Decoder : ImageDecoder {
-
-        @Nullable override fun decode(encodedImage: EncodedImage, length: Int, qualityInfo: QualityInfo, options: ImageDecodeOptions): CloseableImage? {
-            try {
-                val svg = SVG.getFromInputStream(encodedImage.inputStream)
-                return CloseableSvgImage(svg)
-            } catch (e: SVGParseException) {
-                // TODO: are we using the android.util.Log for logging that type of errors? or should we use the SDK logger?
-                e.printStackTrace()
-            }
-            // Return nothing if an error occurred
-            return null
-        }
-    }
-
-    /**
-     * SVG drawable factory that creates [PictureDrawable]s for SVG images.
-     */
-    class SvgDrawableFactory : DrawableFactory {
-
-        override fun supportsImageType(image: CloseableImage): Boolean {
-            return image is CloseableSvgImage
-        }
-
-        @Nullable override fun createDrawable(image: CloseableImage): Drawable? {
-            return SvgPictureDrawable((image as CloseableSvgImage).svg)
-        }
-    }
-
-    class SvgPictureDrawable(private val svg: SVG) : PictureDrawable(null) {
-
-        override fun onBoundsChange(bounds: Rect) {
-            super.onBoundsChange(bounds)
-            picture = svg.renderToPicture(bounds.width(), bounds.height())
-        }
-    }
-}
\ No newline at end of file

app/src/main/java/chat/rocket/android/authentication/login/di/LoginFragmentProvider.kt

@@ -6,6 +6,6 @@ import dagger.android.ContributesAndroidInjector
 
 @Module abstract class LoginFragmentProvider {
 
-    @ContributesAndroidInjector(modules = [(LoginFragmentModule::class)])
+    @ContributesAndroidInjector(modules = [LoginFragmentModule::class])
     abstract fun provideLoginFragment(): LoginFragment
 }
\ No newline at end of file

app/src/main/java/chat/rocket/android/authentication/login/presentation/LoginPresenter.kt

@@ -4,17 +4,20 @@ import chat.rocket.android.authentication.domain.model.TokenModel
 import chat.rocket.android.authentication.presentation.AuthenticationNavigator
 import chat.rocket.android.core.lifecycle.CancelStrategy
 import chat.rocket.android.helper.NetworkHelper
+import chat.rocket.android.helper.UrlHelper
 import chat.rocket.android.infrastructure.LocalRepository
 import chat.rocket.android.server.domain.*
 import chat.rocket.android.server.infraestructure.RocketChatClientFactory
+import chat.rocket.android.util.extensions.generateRandomString
+import chat.rocket.android.util.extensions.isEmailValid
 import chat.rocket.android.util.extensions.launchUI
 import chat.rocket.common.RocketChatException
 import chat.rocket.common.RocketChatTwoFactorException
 import chat.rocket.common.util.ifNull
 import chat.rocket.core.RocketChatClient
-import chat.rocket.core.internal.rest.login
-import chat.rocket.core.internal.rest.me
-import chat.rocket.core.internal.rest.registerPushToken
+import chat.rocket.core.internal.rest.*
+import kotlinx.coroutines.experimental.delay
+import java.util.concurrent.TimeUnit
 import javax.inject.Inject
 
 class LoginPresenter @Inject constructor(private val view: LoginView,
@@ -28,51 +31,69 @@ class LoginPresenter @Inject constructor(private val view: LoginView,
     // TODO - we should validate the current server when opening the app, and have a nonnull get()
     private val client: RocketChatClient = factory.create(serverInteractor.get()!!)
 
-    fun setup() {
+    fun setupView() {
         val server = serverInteractor.get()
         if (server == null) {
             navigator.toServerScreen()
             return
         }
-
         val settings = settingsInteractor.get(server)
-        if (settings == null) {
-            navigator.toServerScreen()
-            return
+
+        if (settings.isLoginFormEnabled()) {
+            view.showFormView()
+            view.setupLoginButtonListener()
+            view.setupGlobalListener()
+        } else {
+            view.hideFormView()
+        }
+
+        if (settings.isRegistrationEnabledForNewUsers()) {
+            view.showSignUpView()
+            view.setupSignUpView()
         }
 
-        view.showSignUpView(settings.registrationEnabled())
+        if (settings.isCasAuthenticationEnabled()) {
+            val token = generateRandomString(17)
+            view.setupCasButtonListener(UrlHelper.getCasUrl(settings.casLoginUrl(), server, token), token)
+            view.showCasButton()
+        }
 
-        var hasSocial = false
-        if (settings.facebookEnabled()) {
+        var totalSocialAccountsEnabled = 0
+        if (settings.isFacebookAuthenticationEnabled()) {
             view.enableLoginByFacebook()
-            hasSocial = true
+            totalSocialAccountsEnabled++
         }
-        if (settings.githubEnabled()) {
+        if (settings.isGithubAuthenticationEnabled()) {
             view.enableLoginByGithub()
-            hasSocial = true
+            totalSocialAccountsEnabled++
         }
-        if (settings.googleEnabled()) {
+        if (settings.isGoogleAuthenticationEnabled()) {
             view.enableLoginByGoogle()
-            hasSocial = true
+            totalSocialAccountsEnabled++
         }
-        if (settings.linkedinEnabled()) {
+        if (settings.isLinkedinAuthenticationEnabled()) {
             view.enableLoginByLinkedin()
-            hasSocial = true
+            totalSocialAccountsEnabled++
         }
-        if (settings.meteorEnabled()) {
+        if (settings.isMeteorAuthenticationEnabled()) {
             view.enableLoginByMeteor()
-            hasSocial = true
+            totalSocialAccountsEnabled++
         }
-        if (settings.twitterEnabled()) {
+        if (settings.isTwitterAuthenticationEnabled()) {
             view.enableLoginByTwitter()
-            hasSocial = true
+            totalSocialAccountsEnabled++
         }
-        if (settings.gitlabEnabled()) {
+        if (settings.isGitlabAuthenticationEnabled()) {
             view.enableLoginByGitlab()
-            hasSocial = true
+            totalSocialAccountsEnabled++
+        }
+
+        if (totalSocialAccountsEnabled > 0) {
+            view.showOauthView()
+            if (totalSocialAccountsEnabled > 3) {
+                view.setupFabListener()
+            }
         }
-        view.showOauthView(hasSocial)
     }
 
     fun authenticate(usernameOrEmail: String, password: String) {
@@ -90,16 +111,21 @@ class LoginPresenter @Inject constructor(private val view: LoginView,
             else -> {
                 launchUI(strategy) {
                     if (NetworkHelper.hasInternetAccess()) {
+                        view.disableUserInput()
                         view.showLoading()
-
                         try {
-                            val token = client.login(usernameOrEmail, password)
-                            val me = client.me()
-                            multiServerRepository.save(
-                                server,
-                                TokenModel(token.userId, token.authToken)
-                            )
-                            localRepository.save(LocalRepository.USERNAME_KEY, me.username)
+                            val token = if (usernameOrEmail.isEmailValid()) {
+                                client.loginWithEmail(usernameOrEmail, password)
+                            } else {
+                                val settings = settingsInteractor.get(server)
+                                if (settings.isLdapAuthenticationEnabled()) {
+                                    client.loginWithLdap(usernameOrEmail, password)
+                                } else {
+                                    client.login(usernameOrEmail, password)
+                                }
+                            }
+
+                            saveToken(server, TokenModel(token.userId, token.authToken), client.me().username)
                             registerPushToken()
                             navigator.toChatList()
                         } catch (exception: RocketChatException) {
@@ -117,6 +143,7 @@ class LoginPresenter @Inject constructor(private val view: LoginView,
                             }
                         } finally {
                             view.hideLoading()
+                            view.enableUserInput()
                         }
                     } else {
                         view.showNoInternetConnection()
@@ -126,8 +153,46 @@ class LoginPresenter @Inject constructor(private val view: LoginView,
         }
     }
 
+    fun authenticateWithCas(casToken: String) {
+        launchUI(strategy) {
+            if (NetworkHelper.hasInternetAccess()) {
+                view.disableUserInput()
+                view.showLoading()
+                try {
+                    val server = serverInteractor.get()
+                    if (server != null) {
+                        delay(3, TimeUnit.SECONDS)
+                        val token = client.loginWithCas(casToken)
+                        saveToken(server, TokenModel(token.userId, token.authToken), client.me().username)
+                        registerPushToken()
+                        navigator.toChatList()
+                    } else {
+                        navigator.toServerScreen()
+                    }
+                } catch (exception: RocketChatException) {
+                    exception.message?.let {
+                        view.showMessage(it)
+                    }.ifNull {
+                        view.showGenericErrorMessage()
+                    }
+                } finally {
+                    view.hideLoading()
+                    view.enableUserInput()
+                }
+            } else {
+                view.showNoInternetConnection()
+            }
+        }
+    }
+
     fun signup() = navigator.toSignUp()
 
+    private suspend fun saveToken(server: String, tokenModel: TokenModel, username: String?) {
+        multiServerRepository.save(server, tokenModel)
+        localRepository.save(LocalRepository.USERNAME_KEY, username)
+        registerPushToken()
+    }
+
     private suspend fun registerPushToken() {
         localRepository.get(LocalRepository.KEY_PUSH_TOKEN)?.let {
             client.registerPushToken(it)

app/src/main/java/chat/rocket/android/authentication/login/presentation/LoginView.kt

@@ -7,62 +7,135 @@ import chat.rocket.android.core.behaviours.MessageView
 interface LoginView : LoadingView, MessageView, InternetView {
 
     /**
-     * Shows the oauth view if the server settings allow the login via social accounts.
+     * Shows the form view (i.e the username/email and password fields) if it is enabled by the server settings.
      *
-     * REMARK: we must show at maximum *three* social accounts views ([enableLoginByFacebook], [enableLoginByGithub], [enableLoginByGoogle],
+     * REMARK: We must set up the login button listener [setupLoginButtonListener].
+     * Remember to enable [enableUserInput] or disable [disableUserInput] the view interaction for the user when submitting the form.
+     */
+    fun showFormView()
+
+    /**
+     * Hides the form view.
+     */
+    fun hideFormView()
+
+    /**
+     * Setups the login button when tapped.
+     */
+    fun setupLoginButtonListener()
+
+    /**
+     * Enables the view interactions for the user.
+     */
+    fun enableUserInput()
+
+    /**
+     * Disables the view interactions for the user.
+     */
+    fun disableUserInput()
+
+    /**
+     * Shows the CAS button if the sign in/sign out via CAS protocol is enabled by the server settings.
+     *
+     * REMARK: We must set up the CAS button listener [setupCasButtonListener].
+     */
+    fun showCasButton()
+
+    /**
+     * Hides the CAS button.
+     */
+    fun hideCasButton()
+
+    /**
+     * Setups the CAS button when tapped.
+     *
+     * @param casUrl The CAS URL to login/sign up with.
+     * @param casToken The requested Token sent to the CAS server.
+     */
+    fun setupCasButtonListener(casUrl: String, casToken: String)
+
+    /**
+     * Shows the sign up view if the new users registration is enabled by the server settings.
+     *
+     * REMARK: We must set up the sign up view listener [setupSignUpView].
+     */
+    fun showSignUpView()
+
+    /**
+     * Setups the sign up view when tapped.
+     */
+    fun setupSignUpView()
+
+    /**
+     * Hides the sign up view.
+     */
+    fun hideSignUpView()
+
+    /**
+     * Shows the oauth view if the login via social accounts is enabled by the server settings.
+     *
+     * REMARK: We must show at maximum *three* social accounts views ([enableLoginByFacebook], [enableLoginByGithub], [enableLoginByGoogle],
      * [enableLoginByLinkedin], [enableLoginByMeteor], [enableLoginByTwitter] or [enableLoginByGitlab]) for the oauth view.
      * If the possibility of login via social accounts exceeds 3 different ways we should set up the FAB ([setupFabListener]) to show the remaining view(s).
-     *
-     * @param value True to show the oauth view, false otherwise.
      */
-    fun showOauthView(value: Boolean)
+    fun showOauthView()
 
     /**
-     * Setups the FloatingActionButton to show more social accounts views (expanding the oauth view interface to show the remaining view(s)).
+     * Hides the oauth view.
      */
-    fun setupFabListener()
+    fun hideOauthView()
+
+    /**
+     * Shows the login button.
+     */
+    fun showLoginButton()
+
+    /**
+     * Hides the login button.
+     */
+    fun hideLoginButton()
 
     /**
-     * Shows the login by Facebook view.
+     * Shows the "login by Facebook view if it is enabled by the server settings.
      */
     fun enableLoginByFacebook()
 
     /**
-     * Shows the login by Github view.
+     * Shows the "login by Github" view if it is enabled by the server settings.
      */
     fun enableLoginByGithub()
 
     /**
-     * Shows the login by Google view.
+     * Shows the "login by Google" view if it is enabled by the server settings.
      */
     fun enableLoginByGoogle()
 
     /**
-     * Shows the login by Linkedin view.
+     * Shows the "login by Linkedin" view if it is enabled by the server settings.
      */
     fun enableLoginByLinkedin()
 
     /**
-     * Shows the login by Meteor view.
+     * Shows the "login by Meteor" view if it is enabled by the server settings.
      */
     fun enableLoginByMeteor()
 
     /**
-     * Shows the login by Twitter view.
+     * Shows the "login by Twitter" view if it is enabled by the server settings.
      */
     fun enableLoginByTwitter()
 
     /**
-     * Shows the login by Gitlab view.
+     * Shows the "login by Gitlab" view if it is enabled by the server settings.
      */
     fun enableLoginByGitlab()
 
     /**
-     * Shows the sign up view if the server settings allow the new users registration.
-     *
-     * @param value True to show the sign up view, false otherwise.
+     * Setups the FloatingActionButton to show more social accounts views (expanding the oauth view interface to show the remaining view(s)).
      */
-    fun showSignUpView(value: Boolean)
+    fun setupFabListener()
+
+    fun setupGlobalListener()
 
     /**
      * Alerts the user about a wrong inputted username or email.

app/src/main/java/chat/rocket/android/authentication/presentation/AuthenticationNavigator.kt

@@ -9,23 +9,24 @@ import chat.rocket.android.authentication.twofactor.ui.TwoFAFragment
 import chat.rocket.android.authentication.ui.AuthenticationActivity
 import chat.rocket.android.main.ui.MainActivity
 import chat.rocket.android.util.extensions.addFragmentBackStack
-import chat.rocket.android.webview.webViewIntent
+import chat.rocket.android.webview.ui.webViewIntent
 
 class AuthenticationNavigator(internal val activity: AuthenticationActivity, internal val context: Context) {
+
     fun toLogin() {
-        activity.addFragmentBackStack("loginFragment", R.id.fragment_container) {
+        activity.addFragmentBackStack("LoginFragment", R.id.fragment_container) {
             LoginFragment.newInstance()
         }
     }
 
     fun toTwoFA(username: String, password: String) {
-        activity.addFragmentBackStack("twoFAFragment", R.id.fragment_container) {
+        activity.addFragmentBackStack("TwoFAFragment", R.id.fragment_container) {
             TwoFAFragment.newInstance(username, password)
         }
     }
 
     fun toSignUp() {
-        activity.addFragmentBackStack("signupFragment", R.id.fragment_container) {
+        activity.addFragmentBackStack("SignupFragment", R.id.fragment_container) {
             SignupFragment.newInstance()
         }
     }
@@ -36,14 +37,11 @@ class AuthenticationNavigator(internal val activity: AuthenticationActivity, int
     }
 
     fun toChatList() {
-        val chatList = Intent(activity, MainActivity::class.java).apply {
-            //TODO any parameter to pass
-        }
-        activity.startActivity(chatList)
+        activity.startActivity(Intent(activity, MainActivity::class.java))
         activity.finish()
     }
 
     fun toServerScreen() {
         TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
     }
-}
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/authentication/server/di/ServerFragmentProvider.kt

@@ -4,8 +4,9 @@ import chat.rocket.android.authentication.server.ui.ServerFragment
 import dagger.Module
 import dagger.android.ContributesAndroidInjector
 
-@Module abstract class ServerFragmentProvider {
+@Module
+abstract class ServerFragmentProvider {
 
-    @ContributesAndroidInjector(modules = [(ServerFragmentModule::class)])
+    @ContributesAndroidInjector(modules = [ServerFragmentModule::class])
     abstract fun provideServerFragment(): ServerFragment
 }
\ No newline at end of file

app/src/main/java/chat/rocket/android/authentication/server/presentation/ServerPresenter.kt

@@ -4,66 +4,39 @@ import chat.rocket.android.authentication.presentation.AuthenticationNavigator
 import chat.rocket.android.core.lifecycle.CancelStrategy
 import chat.rocket.android.helper.NetworkHelper
 import chat.rocket.android.helper.UrlHelper
-import chat.rocket.android.server.domain.*
-import chat.rocket.android.server.infraestructure.RocketChatClientFactory
+import chat.rocket.android.server.domain.RefreshSettingsInteractor
+import chat.rocket.android.server.domain.SaveCurrentServerInteractor
 import chat.rocket.android.util.extensions.launchUI
 import chat.rocket.common.util.ifNull
-import chat.rocket.core.RocketChatClient
-import chat.rocket.core.internal.rest.settings
-import java.security.InvalidParameterException
 import javax.inject.Inject
 
 class ServerPresenter @Inject constructor(private val view: ServerView,
                                           private val strategy: CancelStrategy,
                                           private val navigator: AuthenticationNavigator,
                                           private val serverInteractor: SaveCurrentServerInteractor,
-                                          private val settingsInteractor: SaveSettingsInteractor,
-                                          private val factory: RocketChatClientFactory) {
-    private lateinit var client: RocketChatClient
-    private var settingsFilter = arrayOf(SITE_URL, SITE_NAME, FAVICON_512, USE_REALNAME, ALLOW_ROOM_NAME_SPECIAL_CHARS, FAVORITE_ROOMS,
-            ACCOUNT_LOGIN_FORM, ACCOUNT_GOOGLE, ACCOUNT_FACEBOOK, ACCOUNT_GITHUB, ACCOUNT_GITLAB, ACCOUNT_LINKEDIN, ACCOUNT_METEOR,
-            ACCOUNT_TWITTER, ACCOUNT_WORDPRESS, LDAP_ENABLE, ACCOUNT_REGISTRATION, STORAGE_TYPE, HIDE_USER_JOIN, HIDE_USER_LEAVE, HIDE_TYPE_AU,
-            HIDE_MUTE_UNMUTE, HIDE_TYPE_RU, ACCOUNT_CUSTOM_FIELDS, ALLOW_MESSAGE_DELETING, ALLOW_MESSAGE_EDITING, ALLOW_MESSAGE_PINNING,
-            SHOW_DELETED_STATUS, SHOW_EDITED_STATUS)
-
+                                          private val refreshSettingsInteractor: RefreshSettingsInteractor) {
     fun connect(server: String) {
         if (!UrlHelper.isValidUrl(server)) {
-            view.showInvalidServerUrl()
+            view.showInvalidServerUrlMessage()
         } else {
-            try {
-                client = factory.create(server)
-            } catch (exception: InvalidParameterException) {
-                exception.message?.let {
-                    view.showMessage(it)
-                }.ifNull {
-                    view.showGenericErrorMessage()
-                }
-                return
-            }
-
-            client.let { rocketChatClient ->
-                launchUI(strategy) {
-                    if (NetworkHelper.hasInternetAccess()) {
-                        view.showLoading()
-
-                        try {
-                            val settings = rocketChatClient.settings(*settingsFilter)
-                            settingsInteractor.save(server, settings)
-                            serverInteractor.save(server)
-
-                            navigator.toLogin()
-                        } catch (exception: Exception) {
-                            exception.message?.let {
-                                view.showMessage(it)
-                            }.ifNull {
-                                    view.showGenericErrorMessage()
-                                }
-                        } finally {
-                            view.hideLoading()
+            launchUI(strategy) {
+                if (NetworkHelper.hasInternetAccess()) {
+                    view.showLoading()
+                    try {
+                        refreshSettingsInteractor.refresh(server)
+                        serverInteractor.save(server)
+                        navigator.toLogin()
+                    } catch (ex: Exception) {
+                        ex.message?.let {
+                            view.showMessage(it)
+                        }.ifNull {
+                            view.showGenericErrorMessage()
                         }
-                    } else {
-                        view.showNoInternetConnection()
+                    } finally {
+                        view.hideLoading()
                     }
+                } else {
+                    view.showNoInternetConnection()
                 }
             }
         }

app/src/main/java/chat/rocket/android/authentication/server/presentation/ServerView.kt

@@ -7,7 +7,7 @@ import chat.rocket.android.core.behaviours.MessageView
 interface ServerView : LoadingView, MessageView, InternetView {
 
     /**
-     * Notifies the user about an invalid inputted server URL.
+     * Shows an invalid server URL message.
      */
-    fun showInvalidServerUrl()
+    fun showInvalidServerUrlMessage()
 }
\ No newline at end of file

app/src/main/java/chat/rocket/android/authentication/server/ui/ServerFragment.kt

@@ -30,7 +30,8 @@ class ServerFragment : Fragment(), ServerView {
         AndroidSupportInjection.inject(this)
     }
 
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? = container?.inflate(R.layout.fragment_authentication_server)
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? =
+        container?.inflate(R.layout.fragment_authentication_server)
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
@@ -43,7 +44,7 @@ class ServerFragment : Fragment(), ServerView {
         relative_layout.viewTreeObserver.removeOnGlobalLayoutListener(layoutListener)
     }
 
-    override fun showInvalidServerUrl() = showMessage(getString(R.string.msg_invalid_server_url))
+    override fun showInvalidServerUrlMessage() = showMessage(getString(R.string.msg_invalid_server_url))
 
     override fun showLoading() {
         enableUserInput(false)

app/src/main/java/chat/rocket/android/authentication/signup/ui/SignupFragment.kt

 package chat.rocket.android.authentication.signup.ui
 
 import DrawableHelper
-import android.content.Context
 import android.os.Build
 import android.os.Bundle
 import android.support.v4.app.Fragment
@@ -11,25 +10,24 @@ import android.widget.Toast
 import chat.rocket.android.R
 import chat.rocket.android.authentication.signup.presentation.SignupPresenter
 import chat.rocket.android.authentication.signup.presentation.SignupView
-import chat.rocket.android.helper.AnimationHelper
 import chat.rocket.android.helper.KeyboardHelper
 import chat.rocket.android.helper.TextHelper
-import chat.rocket.android.util.extensions.setVisible
-import chat.rocket.android.util.extensions.textContent
-import chat.rocket.android.util.extensions.showToast
+import chat.rocket.android.util.extensions.*
 import dagger.android.support.AndroidSupportInjection
 import kotlinx.android.synthetic.main.fragment_authentication_sign_up.*
 import javax.inject.Inject
 
 class SignupFragment : Fragment(), SignupView {
     @Inject lateinit var presenter: SignupPresenter
-    @Inject lateinit var appContext: Context
-
     private val layoutListener = ViewTreeObserver.OnGlobalLayoutListener {
-        if (KeyboardHelper.isSoftKeyboardShown(constraint_layout.rootView)) {
-            text_new_user_agreement.setVisible(false)
+        if (KeyboardHelper.isSoftKeyboardShown(relative_layout.rootView)) {
+            bottom_container.setVisible(false)
         } else {
-            text_new_user_agreement.setVisible(true)
+            bottom_container.apply {
+                postDelayed({
+                    setVisible(true)
+                }, 3)
+            }
         }
     }
 
@@ -47,47 +45,45 @@ class SignupFragment : Fragment(), SignupView {
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
 
-        activity?.window?.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE)
-
         if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.M) {
             tintEditTextDrawableStart()
         }
 
-        constraint_layout.viewTreeObserver.addOnGlobalLayoutListener(layoutListener)
+        relative_layout.viewTreeObserver.addOnGlobalLayoutListener(layoutListener)
 
         setUpNewUserAgreementListener()
 
         button_sign_up.setOnClickListener {
-            presenter.signup(text_name.textContent, text_username.textContent, text_password.textContent, text_email.textContent)
+            presenter.signup(text_username.textContent, text_username.textContent, text_password.textContent, text_email.textContent)
         }
     }
 
     override fun onDestroyView() {
+        relative_layout.viewTreeObserver.removeOnGlobalLayoutListener(layoutListener)
         super.onDestroyView()
-        constraint_layout.viewTreeObserver.removeOnGlobalLayoutListener(layoutListener)
     }
 
     override fun alertBlankName() {
-        AnimationHelper.vibrateSmartPhone(appContext)
-        AnimationHelper.shakeView(text_name)
+        vibrateSmartPhone()
+        text_name.shake()
         text_name.requestFocus()
     }
 
     override fun alertBlankUsername() {
-        AnimationHelper.vibrateSmartPhone(appContext)
-        AnimationHelper.shakeView(text_username)
+        vibrateSmartPhone()
+        text_username.shake()
         text_username.requestFocus()
     }
 
     override fun alertEmptyPassword() {
-        AnimationHelper.vibrateSmartPhone(appContext)
-        AnimationHelper.shakeView(text_password)
+        vibrateSmartPhone()
+        text_password.shake()
         text_password.requestFocus()
     }
 
     override fun alertBlankEmail() {
-        AnimationHelper.vibrateSmartPhone(appContext)
-        AnimationHelper.shakeView(text_email)
+        vibrateSmartPhone()
+        text_email.shake()
         text_email.requestFocus()
     }
 
@@ -114,15 +110,17 @@ class SignupFragment : Fragment(), SignupView {
     }
 
     private fun tintEditTextDrawableStart() {
-        val personDrawable = DrawableHelper.getDrawableFromId(R.drawable.ic_person_black_24dp, appContext)
-        val atDrawable = DrawableHelper.getDrawableFromId(R.drawable.ic_at_black_24dp, appContext)
-        val lockDrawable = DrawableHelper.getDrawableFromId(R.drawable.ic_lock_black_24dp, appContext)
-        val emailDrawable = DrawableHelper.getDrawableFromId(R.drawable.ic_email_black_24dp, appContext)
-
-        val drawables = arrayOf(personDrawable, atDrawable, lockDrawable, emailDrawable)
-        DrawableHelper.wrapDrawables(drawables)
-        DrawableHelper.tintDrawables(drawables, appContext, R.color.colorDrawableTintGrey)
-        DrawableHelper.compoundDrawables(arrayOf(text_name, text_username, text_password, text_email), drawables)
+        activity?.apply {
+            val personDrawable = DrawableHelper.getDrawableFromId(R.drawable.ic_person_black_24dp, this)
+            val atDrawable = DrawableHelper.getDrawableFromId(R.drawable.ic_at_black_24dp, this)
+            val lockDrawable = DrawableHelper.getDrawableFromId(R.drawable.ic_lock_black_24dp, this)
+            val emailDrawable = DrawableHelper.getDrawableFromId(R.drawable.ic_email_black_24dp, this)
+
+            val drawables = arrayOf(personDrawable, atDrawable, lockDrawable, emailDrawable)
+            DrawableHelper.wrapDrawables(drawables)
+            DrawableHelper.tintDrawables(drawables, this, R.color.colorDrawableTintGrey)
+            DrawableHelper.compoundDrawables(arrayOf(text_name, text_username, text_password, text_email), drawables)
+        }
     }
 
     private fun setUpNewUserAgreementListener() {
@@ -149,7 +147,7 @@ class SignupFragment : Fragment(), SignupView {
 
     private fun enableUserInput(value: Boolean) {
         button_sign_up.isEnabled = value
-        text_name.isEnabled = value
+        text_username.isEnabled = value
         text_username.isEnabled = value
         text_password.isEnabled = value
         text_email.isEnabled = value

app/src/main/java/chat/rocket/android/authentication/twofactor/ui/TwoFAFragment.kt

@@ -12,10 +12,7 @@ import android.view.inputmethod.InputMethodManager
 import chat.rocket.android.R
 import chat.rocket.android.authentication.twofactor.presentation.TwoFAPresenter
 import chat.rocket.android.authentication.twofactor.presentation.TwoFAView
-import chat.rocket.android.helper.AnimationHelper
-import chat.rocket.android.util.extensions.setVisible
-import chat.rocket.android.util.extensions.textContent
-import chat.rocket.android.util.extensions.showToast
+import chat.rocket.android.util.extensions.*
 import dagger.android.support.AndroidSupportInjection
 import kotlinx.android.synthetic.main.fragment_authentication_two_fa.*
 import javax.inject.Inject
@@ -65,10 +62,8 @@ class TwoFAFragment : Fragment(), TwoFAView {
     }
 
     override fun alertBlankTwoFactorAuthenticationCode() {
-        activity?.let {
-            AnimationHelper.vibrateSmartPhone(it)
-            AnimationHelper.shakeView(text_two_factor_auth)
-        }
+        vibrateSmartPhone()
+        text_two_factor_auth.shake()
     }
 
     override fun alertInvalidTwoFactorAuthenticationCode() = showMessage(getString(R.string.msg_invalid_2fa_code))

app/src/main/java/chat/rocket/android/chatroom/adapter/AudioAttachmentViewHolder.kt

+package chat.rocket.android.chatroom.adapter
+
+import android.view.View
+import chat.rocket.android.chatroom.viewmodel.AudioAttachmentViewModel
+import chat.rocket.android.player.PlayerActivity
+import chat.rocket.android.util.extensions.setVisible
+import chat.rocket.android.widget.emoji.EmojiReactionListener
+import kotlinx.android.synthetic.main.message_attachment.view.*
+
+class AudioAttachmentViewHolder(itemView: View,
+                                listener: ActionsListener,
+                                reactionListener: EmojiReactionListener? = null)
+    : BaseViewHolder<AudioAttachmentViewModel>(itemView, listener, reactionListener) {
+
+    init {
+        with(itemView) {
+            image_attachment.setVisible(false)
+            audio_video_attachment.setVisible(true)
+            setupActionMenu(attachment_container)
+            setupActionMenu(audio_video_attachment)
+        }
+    }
+
+    override fun bindViews(data: AudioAttachmentViewModel) {
+        with(itemView) {
+            file_name.text = data.attachmentTitle
+            audio_video_attachment.setOnClickListener { view ->
+                data.attachmentUrl.let { url ->
+                    PlayerActivity.play(view.context, url)
+                }
+            }
+        }
+    }
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatroom/adapter/AutoCompleteType.kt

+package chat.rocket.android.chatroom.adapter
+
+import android.support.annotation.IntDef
+
+const val PEOPLE = 0L
+const val ROOMS = 1L
+
+@Retention(AnnotationRetention.SOURCE)
+@IntDef(value = [PEOPLE, ROOMS])
+annotation class AutoCompleteType

app/src/main/java/chat/rocket/android/chatroom/adapter/BaseViewHolder.kt

+package chat.rocket.android.chatroom.adapter
+
+import android.support.v7.widget.RecyclerView
+import android.view.MenuItem
+import android.view.View
+import chat.rocket.android.R
+import chat.rocket.android.chatroom.ui.bottomsheet.BottomSheetMenu
+import chat.rocket.android.chatroom.ui.bottomsheet.adapter.ActionListAdapter
+import chat.rocket.android.chatroom.viewmodel.BaseViewModel
+import chat.rocket.android.widget.emoji.Emoji
+import chat.rocket.android.widget.emoji.EmojiReactionListener
+import chat.rocket.core.model.Message
+import chat.rocket.core.model.isSystemMessage
+import com.google.android.flexbox.FlexDirection
+import com.google.android.flexbox.FlexboxLayoutManager
+import ru.whalemare.sheetmenu.extension.inflate
+import ru.whalemare.sheetmenu.extension.toList
+
+
+abstract class BaseViewHolder<T : BaseViewModel<*>>(
+        itemView: View,
+        private val listener: ActionsListener,
+        var reactionListener: EmojiReactionListener? = null
+) : RecyclerView.ViewHolder(itemView),
+        MenuItem.OnMenuItemClickListener {
+    var data: T? = null
+
+    init {
+        setupActionMenu(itemView)
+    }
+
+    fun bind(data: T) {
+        this.data = data
+        bindViews(data)
+        bindReactions()
+    }
+
+    private fun bindReactions() {
+        data?.let {
+            val recyclerView = itemView.findViewById(R.id.recycler_view_reactions) as RecyclerView
+            val adapter: MessageReactionsAdapter
+            if (recyclerView.adapter == null) {
+                adapter = MessageReactionsAdapter()
+            } else {
+                adapter = recyclerView.adapter as MessageReactionsAdapter
+                adapter.clear()
+            }
+
+            if (it.nextDownStreamMessage == null) {
+                adapter.listener = object : EmojiReactionListener {
+                    override fun onReactionTouched(messageId: String, emojiShortname: String) {
+                        reactionListener?.onReactionTouched(messageId, emojiShortname)
+                    }
+
+                    override fun onReactionAdded(messageId: String, emoji: Emoji) {
+                        if (!adapter.contains(emoji.shortname)) {
+                            reactionListener?.onReactionAdded(messageId, emoji)
+                        }
+                    }
+                }
+                val context = itemView.context
+                val manager = FlexboxLayoutManager(context, FlexDirection.ROW)
+                recyclerView.layoutManager = manager
+                recyclerView.adapter = adapter
+                adapter.addReactions(it.reactions.filterNot { it.unicode.startsWith(":") })
+            }
+        }
+    }
+
+    abstract fun bindViews(data: T)
+
+    interface ActionsListener {
+        fun isActionsEnabled(): Boolean
+        fun onActionSelected(item: MenuItem, message: Message)
+    }
+
+    val longClickListener = { view: View ->
+        if (data?.message?.isSystemMessage() == false) {
+            val menuItems = view.context.inflate(R.menu.message_actions).toList()
+            menuItems.find { it.itemId == R.id.action_menu_msg_pin_unpin }?.apply {
+                val isPinned = data?.message?.pinned ?: false
+                setTitle(if (isPinned) R.string.action_msg_unpin else R.string.action_msg_pin)
+                isChecked = isPinned
+            }
+            val adapter = ActionListAdapter(menuItems, this@BaseViewHolder)
+            BottomSheetMenu(adapter).show(view.context)
+        }
+        true
+    }
+
+    internal fun setupActionMenu(view: View) {
+        if (listener.isActionsEnabled()) {
+            view.setOnLongClickListener(longClickListener)
+        }
+    }
+
+    override fun onMenuItemClick(item: MenuItem): Boolean {
+        data?.let {
+            listener.onActionSelected(item, it.message)
+        }
+        return true
+    }
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatroom/adapter/ChatRoomAdapter.kt

+package chat.rocket.android.chatroom.adapter
+
+import android.support.v7.widget.RecyclerView
+import android.view.MenuItem
+import android.view.ViewGroup
+import chat.rocket.android.R
+import chat.rocket.android.chatroom.presentation.ChatRoomPresenter
+import chat.rocket.android.chatroom.viewmodel.*
+import chat.rocket.android.util.extensions.inflate
+import chat.rocket.android.widget.emoji.EmojiReactionListener
+import chat.rocket.core.model.Message
+import chat.rocket.core.model.isSystemMessage
+import timber.log.Timber
+import java.security.InvalidParameterException
+
+class ChatRoomAdapter(
+        private val roomType: String,
+        private val roomName: String,
+        private val presenter: ChatRoomPresenter?,
+        private val enableActions: Boolean = true,
+        private val reactionListener: EmojiReactionListener? = null
+) : RecyclerView.Adapter<BaseViewHolder<*>>() {
+
+    private val dataSet = ArrayList<BaseViewModel<*>>()
+
+    init {
+        setHasStableIds(true)
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): BaseViewHolder<*> {
+        return when (viewType.toViewType()) {
+            BaseViewModel.ViewType.MESSAGE -> {
+                val view = parent.inflate(R.layout.item_message)
+                MessageViewHolder(view, actionsListener, reactionListener)
+            }
+            BaseViewModel.ViewType.IMAGE_ATTACHMENT -> {
+                val view = parent.inflate(R.layout.message_attachment)
+                ImageAttachmentViewHolder(view, actionsListener, reactionListener)
+            }
+            BaseViewModel.ViewType.AUDIO_ATTACHMENT -> {
+                val view = parent.inflate(R.layout.message_attachment)
+                AudioAttachmentViewHolder(view, actionsListener, reactionListener)
+            }
+            BaseViewModel.ViewType.VIDEO_ATTACHMENT -> {
+                val view = parent.inflate(R.layout.message_attachment)
+                VideoAttachmentViewHolder(view, actionsListener, reactionListener)
+            }
+            BaseViewModel.ViewType.URL_PREVIEW -> {
+                val view = parent.inflate(R.layout.message_url_preview)
+                UrlPreviewViewHolder(view, actionsListener, reactionListener)
+            }
+            else -> {
+                throw InvalidParameterException("TODO - implement for ${viewType.toViewType()}")
+            }
+        }
+    }
+
+    override fun getItemViewType(position: Int): Int {
+        return dataSet[position].viewType
+    }
+
+    override fun getItemCount(): Int {
+        return dataSet.size
+    }
+
+    override fun onBindViewHolder(holder: BaseViewHolder<*>, position: Int) {
+        if (holder !is MessageViewHolder) {
+            if (position + 1 < itemCount) {
+                val messageAbove = dataSet[position + 1]
+                if (messageAbove.messageId == dataSet[position].messageId) {
+                    messageAbove.nextDownStreamMessage = dataSet[position]
+                }
+            }
+        } else {
+            if (position == 0) {
+                dataSet[0].nextDownStreamMessage = null
+            } else if (position - 1 > 0) {
+                if (dataSet[position - 1].messageId != dataSet[position].messageId) {
+                    dataSet[position].nextDownStreamMessage = null
+                }
+            }
+        }
+
+        when (holder) {
+            is MessageViewHolder -> holder.bind(dataSet[position] as MessageViewModel)
+            is ImageAttachmentViewHolder -> holder.bind(dataSet[position] as ImageAttachmentViewModel)
+            is AudioAttachmentViewHolder -> holder.bind(dataSet[position] as AudioAttachmentViewModel)
+            is VideoAttachmentViewHolder -> holder.bind(dataSet[position] as VideoAttachmentViewModel)
+            is UrlPreviewViewHolder -> holder.bind(dataSet[position] as UrlPreviewViewModel)
+        }
+    }
+
+    override fun getItemId(position: Int): Long {
+        val model = dataSet[position]
+        return when (model) {
+            is MessageViewModel -> model.messageId.hashCode().toLong()
+            is BaseFileAttachmentViewModel -> model.id
+            else -> return position.toLong()
+        }
+    }
+
+    fun appendData(dataSet: List<BaseViewModel<*>>) {
+        val previousDataSetSize = this.dataSet.size
+        this.dataSet.addAll(dataSet)
+        notifyItemChanged(previousDataSetSize, dataSet.size)
+    }
+
+    fun prependData(dataSet: List<BaseViewModel<*>>) {
+        val item = dataSet.firstOrNull { newItem ->
+            this.dataSet.indexOfFirst { it.messageId == newItem.messageId && it.viewType == newItem.viewType } > -1
+        }
+        if (item == null) {
+            this.dataSet.addAll(0, dataSet)
+            notifyItemRangeInserted(0, dataSet.size)
+        }
+    }
+
+    fun updateItem(message: BaseViewModel<*>) {
+        var index = dataSet.indexOfLast { it.messageId == message.messageId }
+        val indexOfFirst = dataSet.indexOfFirst { it.messageId == message.messageId }
+        Timber.d("index: $index")
+        if (index > -1) {
+            dataSet[index] = message
+            notifyItemChanged(index)
+            while (dataSet[index].nextDownStreamMessage != null) {
+                dataSet[index].nextDownStreamMessage!!.reactions = message.reactions
+                notifyItemChanged(--index)
+            }
+            // Delete message only if current is a system message update, i.e.: Message Removed
+            if (message.message.isSystemMessage() && indexOfFirst > -1 && indexOfFirst != index) {
+                dataSet.removeAt(indexOfFirst)
+                notifyItemRemoved(indexOfFirst)
+            }
+        }
+    }
+
+    fun removeItem(messageId: String) {
+        val index = dataSet.indexOfFirst { it.messageId == messageId }
+        if (index > -1) {
+            val oldSize = dataSet.size
+            val newSet = dataSet.filterNot { it.messageId == messageId }
+            dataSet.clear()
+            dataSet.addAll(newSet)
+            val newSize = dataSet.size
+            notifyItemRangeRemoved(index, oldSize - newSize)
+        }
+    }
+
+    val actionsListener = object : BaseViewHolder.ActionsListener {
+        override fun isActionsEnabled(): Boolean = enableActions
+
+        override fun onActionSelected(item: MenuItem, message: Message) {
+            message.apply {
+                when (item.itemId) {
+                    R.id.action_menu_msg_delete -> presenter?.deleteMessage(roomId, id)
+                    R.id.action_menu_msg_quote -> presenter?.citeMessage(roomType, roomName, id, false)
+                    R.id.action_menu_msg_reply -> presenter?.citeMessage(roomType, roomName, id, true)
+                    R.id.action_menu_msg_copy -> presenter?.copyMessage(id)
+                    R.id.action_menu_msg_edit -> presenter?.editMessage(roomId, id, message.message)
+                    R.id.action_menu_msg_pin_unpin -> {
+                        with(item) {
+                            if (!isChecked) {
+                                presenter?.pinMessage(id)
+                            } else {
+                                presenter?.unpinMessage(id)
+                            }
+                        }
+                    }
+                    R.id.action_menu_msg_react -> presenter?.showReactions(id)
+                    else -> TODO("Not implemented")
+                }
+            }
+        }
+    }
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatroom/adapter/CommandSuggestionsAdapter.kt

+package chat.rocket.android.chatroom.adapter
+
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.TextView
+import chat.rocket.android.R
+import chat.rocket.android.chatroom.adapter.CommandSuggestionsAdapter.CommandSuggestionsViewHolder
+import chat.rocket.android.chatroom.viewmodel.suggestion.CommandSuggestionViewModel
+import chat.rocket.android.widget.autocompletion.model.SuggestionModel
+import chat.rocket.android.widget.autocompletion.ui.BaseSuggestionViewHolder
+import chat.rocket.android.widget.autocompletion.ui.SuggestionsAdapter
+
+class CommandSuggestionsAdapter : SuggestionsAdapter<CommandSuggestionsViewHolder>(token = "/",
+        constraint = CONSTRAINT_BOUND_TO_START, threshold = UNLIMITED_RESULT_COUNT) {
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): CommandSuggestionsViewHolder {
+        val view = LayoutInflater.from(parent.context).inflate(R.layout.suggestion_command_item, parent,
+                false)
+        return CommandSuggestionsViewHolder(view)
+    }
+
+    class CommandSuggestionsViewHolder(view: View) : BaseSuggestionViewHolder(view) {
+
+        override fun bind(item: SuggestionModel, itemClickListener: SuggestionsAdapter.ItemClickListener?) {
+            item as CommandSuggestionViewModel
+            with(itemView) {
+                val nameTextView = itemView.findViewById<TextView>(R.id.text_command_name)
+                val descriptionTextView = itemView.findViewById<TextView>(R.id.text_command_description)
+                nameTextView.text = "/${item.text}"
+                val res = context.resources
+                val id = res.getIdentifier(item.description, "string", context.packageName)
+                val description = if (id > 0) res.getString(id) else ""
+                descriptionTextView.text = description.toLowerCase()
+                setOnClickListener {
+                    itemClickListener?.onClick(item)
+                }
+            }
+        }
+    }
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatroom/adapter/ImageAttachmentViewHolder.kt

+package chat.rocket.android.chatroom.adapter
+
+import android.view.View
+import chat.rocket.android.chatroom.viewmodel.ImageAttachmentViewModel
+import com.facebook.drawee.backends.pipeline.Fresco
+import com.facebook.drawee.interfaces.DraweeController
+import chat.rocket.android.widget.emoji.EmojiReactionListener
+import com.stfalcon.frescoimageviewer.ImageViewer
+import kotlinx.android.synthetic.main.message_attachment.view.*
+
+class ImageAttachmentViewHolder(itemView: View,
+                                listener: ActionsListener,
+                                reactionListener: EmojiReactionListener? = null)
+    : BaseViewHolder<ImageAttachmentViewModel>(itemView, listener, reactionListener) {
+
+    init {
+        with(itemView) {
+            setupActionMenu(attachment_container)
+            setupActionMenu(image_attachment)
+        }
+    }
+
+    override fun bindViews(data: ImageAttachmentViewModel) {
+        with(itemView) {
+            val controller = Fresco.newDraweeControllerBuilder().apply {
+                setUri(data.attachmentUrl)
+                autoPlayAnimations = true
+                oldController = image_attachment.controller
+            }.build()
+            image_attachment.controller = controller
+            file_name.text = data.attachmentTitle
+            image_attachment.setOnClickListener { view ->
+                // TODO - implement a proper image viewer with a proper Transition
+                val builder = ImageViewer.createPipelineDraweeControllerBuilder()
+                        .setAutoPlayAnimations(true)
+                ImageViewer.Builder(view.context, listOf(data.attachmentUrl))
+                        .setStartPosition(0)
+                        .hideStatusBar(false)
+                        .setCustomDraweeControllerBuilder(builder)
+                        .show()
+            }
+        }
+    }
+
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatroom/adapter/MessageReactionsAdapter.kt

+package chat.rocket.android.chatroom.adapter
+
+import android.support.v7.widget.RecyclerView
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ImageView
+import android.widget.TextView
+import chat.rocket.android.R
+import chat.rocket.android.chatroom.viewmodel.ReactionViewModel
+import chat.rocket.android.dagger.DaggerLocalComponent
+import chat.rocket.android.infrastructure.LocalRepository
+import chat.rocket.android.widget.emoji.Emoji
+import chat.rocket.android.widget.emoji.EmojiListenerAdapter
+import chat.rocket.android.widget.emoji.EmojiPickerPopup
+import chat.rocket.android.widget.emoji.EmojiReactionListener
+import java.util.concurrent.CopyOnWriteArrayList
+import javax.inject.Inject
+
+class MessageReactionsAdapter : RecyclerView.Adapter<RecyclerView.ViewHolder>() {
+    companion object {
+        private const val REACTION_VIEW_TYPE = 0
+        private const val ADD_REACTION_VIEW_TYPE = 1
+    }
+
+    private val reactions = CopyOnWriteArrayList<ReactionViewModel>()
+    var listener: EmojiReactionListener? = null
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
+        val inflater = LayoutInflater.from(parent.context)
+        val view: View
+        return when (viewType) {
+            ADD_REACTION_VIEW_TYPE -> {
+                view = inflater.inflate(R.layout.item_add_reaction, parent, false)
+                AddReactionViewHolder(view, listener)
+            }
+            else -> {
+                view = inflater.inflate(R.layout.item_reaction, parent, false)
+                SingleReactionViewHolder(view, listener)
+            }
+        }
+    }
+
+    override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
+        if (holder is SingleReactionViewHolder) {
+            holder.bind(reactions[position])
+        } else {
+            holder as AddReactionViewHolder
+            holder.bind(reactions[0].messageId)
+        }
+    }
+
+    override fun getItemCount() = if (reactions.isEmpty()) 0 else reactions.size + 1
+
+    override fun getItemViewType(position: Int): Int {
+        if (position == reactions.size) {
+            return ADD_REACTION_VIEW_TYPE
+        }
+        return REACTION_VIEW_TYPE
+    }
+
+    fun addReactions(reactions: List<ReactionViewModel>) {
+        this.reactions.clear()
+        this.reactions.addAllAbsent(reactions)
+        notifyItemRangeInserted(0, reactions.size)
+    }
+
+    fun clear() {
+        val oldSize = reactions.size
+        reactions.clear()
+        notifyItemRangeRemoved(0, oldSize)
+    }
+
+    fun contains(reactionShortname: String) =
+            reactions.firstOrNull { it.shortname ==  reactionShortname} != null
+
+    class SingleReactionViewHolder(view: View,
+                                   private val listener: EmojiReactionListener?)
+        : RecyclerView.ViewHolder(view), View.OnClickListener {
+        @Inject lateinit var localRepository: LocalRepository
+        @Volatile lateinit var reaction: ReactionViewModel
+        @Volatile
+        var clickHandled = false
+
+        init {
+            DaggerLocalComponent.builder()
+                    .context(itemView.context)
+                    .build()
+                    .inject(this)
+        }
+
+        fun bind(reaction: ReactionViewModel) {
+            clickHandled = false
+            this.reaction = reaction
+            with(itemView) {
+                val emojiTextView = findViewById<TextView>(R.id.text_emoji)
+                val countTextView = findViewById<TextView>(R.id.text_count)
+                emojiTextView.text = reaction.unicode
+                countTextView.text = reaction.count.toString()
+                val myself = localRepository.get(LocalRepository.USERNAME_KEY)
+                if (reaction.usernames.contains(myself)) {
+                    val context = itemView.context
+                    val resources = context.resources
+                    countTextView.setTextColor(resources.getColor(R.color.colorAccent))
+                }
+
+                emojiTextView.setOnClickListener(this@SingleReactionViewHolder)
+                countTextView.setOnClickListener(this@SingleReactionViewHolder)
+            }
+        }
+
+        override fun onClick(v: View?) {
+            synchronized(this) {
+                if (!clickHandled) {
+                    clickHandled = true
+                    listener?.onReactionTouched(reaction.messageId, reaction.shortname)
+                }
+            }
+        }
+    }
+
+    class AddReactionViewHolder(view: View,
+                                private val listener: EmojiReactionListener?) : RecyclerView.ViewHolder(view) {
+        fun bind(messageId: String) {
+            itemView as ImageView
+            itemView.setOnClickListener {
+                val emojiPickerPopup = EmojiPickerPopup(itemView.context)
+                emojiPickerPopup.listener = object : EmojiListenerAdapter() {
+                    override fun onEmojiAdded(emoji: Emoji) {
+                        listener?.onReactionAdded(messageId, emoji)
+                    }
+                }
+                emojiPickerPopup.show()
+            }
+        }
+    }
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatroom/adapter/MessageViewHolder.kt

+package chat.rocket.android.chatroom.adapter
+
+import android.text.method.LinkMovementMethod
+import android.view.View
+import chat.rocket.android.chatroom.viewmodel.MessageViewModel
+import chat.rocket.android.widget.emoji.EmojiReactionListener
+import kotlinx.android.synthetic.main.avatar.view.*
+import kotlinx.android.synthetic.main.item_message.view.*
+
+class MessageViewHolder(
+    itemView: View,
+    listener: ActionsListener,
+    reactionListener: EmojiReactionListener? = null
+) : BaseViewHolder<MessageViewModel>(itemView, listener, reactionListener) {
+
+    init {
+        with(itemView) {
+            text_content.movementMethod = LinkMovementMethod()
+            setupActionMenu(text_content)
+        }
+    }
+
+    override fun bindViews(data: MessageViewModel) {
+        with(itemView) {
+            if (data.isFirstUnread) new_messages_notif.visibility = View.VISIBLE
+            else new_messages_notif.visibility = View.GONE
+
+            text_message_time.text = data.time
+            text_sender.text = data.senderName
+            text_content.text = data.content
+            image_avatar.setImageURI(data.avatar)
+        }
+    }
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatroom/adapter/PeopleSuggestionsAdapter.kt

+package chat.rocket.android.chatroom.adapter
+
+import DrawableHelper
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ImageView
+import android.widget.TextView
+import chat.rocket.android.R
+import chat.rocket.android.chatroom.adapter.PeopleSuggestionsAdapter.PeopleSuggestionViewHolder
+import chat.rocket.android.chatroom.viewmodel.suggestion.PeopleSuggestionViewModel
+import chat.rocket.android.util.extensions.setVisible
+import chat.rocket.android.widget.autocompletion.model.SuggestionModel
+import chat.rocket.android.widget.autocompletion.ui.BaseSuggestionViewHolder
+import chat.rocket.android.widget.autocompletion.ui.SuggestionsAdapter
+import chat.rocket.common.model.UserStatus
+import com.facebook.drawee.view.SimpleDraweeView
+
+class PeopleSuggestionsAdapter : SuggestionsAdapter<PeopleSuggestionViewHolder>("@") {
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): PeopleSuggestionViewHolder {
+        val view = LayoutInflater.from(parent.context).inflate(R.layout.suggestion_member_item, parent,
+                false)
+        return PeopleSuggestionViewHolder(view)
+    }
+
+    class PeopleSuggestionViewHolder(view: View) : BaseSuggestionViewHolder(view) {
+
+        override fun bind(item: SuggestionModel, itemClickListener: SuggestionsAdapter.ItemClickListener?) {
+            item as PeopleSuggestionViewModel
+            with(itemView) {
+                val username = itemView.findViewById<TextView>(R.id.text_username)
+                val name = itemView.findViewById<TextView>(R.id.text_name)
+                val avatar = itemView.findViewById<SimpleDraweeView>(R.id.image_avatar)
+                val statusView = itemView.findViewById<ImageView>(R.id.image_status)
+                username.text = item.username
+                name.text = item.name
+                if (item.imageUri.isEmpty()) {
+                    avatar.setVisible(false)
+                } else {
+                    avatar.setVisible(true)
+                    avatar.setImageURI(item.imageUri)
+                }
+                val status = item.status ?: UserStatus.Offline()
+                val statusDrawable = DrawableHelper.getUserStatusDrawable(status, itemView.context)
+                statusView.setImageDrawable(statusDrawable)
+                setOnClickListener {
+                    itemClickListener?.onClick(item)
+                }
+            }
+        }
+    }
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatroom/adapter/RoomSuggestionsAdapter.kt

+package chat.rocket.android.chatroom.adapter
+
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.TextView
+import chat.rocket.android.R
+import chat.rocket.android.chatroom.adapter.RoomSuggestionsAdapter.RoomSuggestionsViewHolder
+import chat.rocket.android.chatroom.viewmodel.suggestion.ChatRoomSuggestionViewModel
+import chat.rocket.android.widget.autocompletion.model.SuggestionModel
+import chat.rocket.android.widget.autocompletion.ui.BaseSuggestionViewHolder
+import chat.rocket.android.widget.autocompletion.ui.SuggestionsAdapter
+
+class RoomSuggestionsAdapter : SuggestionsAdapter<RoomSuggestionsViewHolder>("#") {
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RoomSuggestionsViewHolder {
+        val view = LayoutInflater.from(parent.context).inflate(R.layout.suggestion_room_item, parent,
+                false)
+        return RoomSuggestionsViewHolder(view)
+    }
+
+    class RoomSuggestionsViewHolder(view: View) : BaseSuggestionViewHolder(view) {
+
+        override fun bind(item: SuggestionModel, itemClickListener: SuggestionsAdapter.ItemClickListener?) {
+            item as ChatRoomSuggestionViewModel
+            with(itemView) {
+                val fullname = itemView.findViewById<TextView>(R.id.text_fullname)
+                val name = itemView.findViewById<TextView>(R.id.text_name)
+                name.text = item.name
+                fullname.text = item.fullName
+                setOnClickListener {
+                    itemClickListener?.onClick(item)
+                }
+            }
+        }
+    }
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatroom/adapter/UrlPreviewViewHolder.kt

+package chat.rocket.android.chatroom.adapter
+
+import android.content.Intent
+import android.net.Uri
+import android.view.View
+import chat.rocket.android.chatroom.viewmodel.UrlPreviewViewModel
+import chat.rocket.android.util.extensions.content
+import chat.rocket.android.util.extensions.setVisible
+import chat.rocket.android.widget.emoji.EmojiReactionListener
+import kotlinx.android.synthetic.main.message_url_preview.view.*
+
+class UrlPreviewViewHolder(itemView: View,
+                           listener: ActionsListener,
+                           reactionListener: EmojiReactionListener? = null)
+    : BaseViewHolder<UrlPreviewViewModel>(itemView, listener, reactionListener) {
+
+    init {
+        with(itemView) {
+            setupActionMenu(url_preview_layout)
+        }
+    }
+
+    override fun bindViews(data: UrlPreviewViewModel) {
+        with(itemView) {
+            if (data.thumbUrl.isNullOrEmpty()) {
+                image_preview.setVisible(false)
+            } else {
+                image_preview.setImageURI(data.thumbUrl)
+                image_preview.setVisible(true)
+            }
+            text_host.content = data.hostname
+            text_title.content = data.title
+            text_description.content = data.description ?: ""
+
+            url_preview_layout.setOnClickListener { view ->
+                view.context.startActivity(Intent(Intent.ACTION_VIEW, Uri.parse(data.rawData.url)))
+            }
+        }
+    }
+
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatroom/adapter/VideoAttachmentViewHolder.kt

+package chat.rocket.android.chatroom.adapter
+
+import android.view.View
+import chat.rocket.android.chatroom.viewmodel.VideoAttachmentViewModel
+import chat.rocket.android.player.PlayerActivity
+import chat.rocket.android.util.extensions.setVisible
+import chat.rocket.android.widget.emoji.EmojiReactionListener
+import kotlinx.android.synthetic.main.message_attachment.view.*
+
+class VideoAttachmentViewHolder(itemView: View,
+                                listener: ActionsListener,
+                                reactionListener: EmojiReactionListener? = null)
+    : BaseViewHolder<VideoAttachmentViewModel>(itemView, listener, reactionListener) {
+
+    init {
+        with(itemView) {
+            image_attachment.setVisible(false)
+            audio_video_attachment.setVisible(true)
+            setupActionMenu(attachment_container)
+            setupActionMenu(audio_video_attachment)
+        }
+    }
+
+    override fun bindViews(data: VideoAttachmentViewModel) {
+        with(itemView) {
+            file_name.text = data.attachmentTitle
+            audio_video_attachment.setOnClickListener { view ->
+                data.attachmentUrl.let { url ->
+                    PlayerActivity.play(view.context, url)
+                }
+            }
+        }
+    }
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatroom/di/ChatRoomFragmentModule.kt

 package chat.rocket.android.chatroom.di
 
 import android.arch.lifecycle.LifecycleOwner
+import chat.rocket.android.chatroom.presentation.ChatRoomNavigator
 import chat.rocket.android.chatroom.presentation.ChatRoomView
+import chat.rocket.android.chatroom.ui.ChatRoomActivity
 import chat.rocket.android.chatroom.ui.ChatRoomFragment
 import chat.rocket.android.core.lifecycle.CancelStrategy
 import chat.rocket.android.dagger.scope.PerFragment
@@ -13,6 +15,9 @@ import kotlinx.coroutines.experimental.Job
 @PerFragment
 class ChatRoomFragmentModule {
 
+    @Provides
+    fun provideChatRoomNavigator(activity: ChatRoomActivity) = ChatRoomNavigator(activity)
+
     @Provides
     fun chatRoomView(frag: ChatRoomFragment): ChatRoomView {
         return frag

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

@@ -24,7 +24,7 @@ class PinnedMessagesFragmentModule {
     }
 
     @Provides
-    fun providePinnedMessageView(frag: PinnedMessagesFragment): PinnedMessagesView {
+    fun providePinnedMessagesView(frag: PinnedMessagesFragment): PinnedMessagesView {
         return frag
     }
 }
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatroom/domain/UriInteractor.kt

@@ -2,11 +2,7 @@ package chat.rocket.android.chatroom.domain
 
 import android.content.Context
 import android.net.Uri
-import chat.rocket.android.util.extensions.getFileName
-import chat.rocket.android.util.extensions.getMimeType
-import chat.rocket.android.util.extensions.getRealPathFromURI
-import okio.Okio
-import java.io.File
+import chat.rocket.android.util.extensions.*
 import javax.inject.Inject
 
 
@@ -28,26 +24,7 @@ class UriInteractor @Inject constructor(private val context: Context) {
      */
     fun getRealPath(uri: Uri): String? = uri.getRealPathFromURI(context)
 
-    /**
-     * Save the contents of an [Uri] to a temp file named after uri.getFileName()
-     */
-    fun tempFile(uri: Uri): File? {
-        try {
-            val outputDir = context.cacheDir // context being the Activity pointer
-            val outputFile = File(outputDir, uri.getFileName(context))
-            val from = context.contentResolver.openInputStream(uri)
-
-            Okio.source(from).use { a ->
-                Okio.buffer(Okio.sink(outputFile)).use{ b ->
-                    b.writeAll(a)
-                    b.close()
-                }
-                a.close()
-            }
-            return outputFile
-        } catch (ex: Exception) {
-            ex.printStackTrace()
-            return null
-        }
-    }
+    fun getFileSize(uri: Uri) = uri.getFileSize(context)
+
+    fun getInputStream(uri: Uri) = uri.getInputStream(context)
 }
\ No newline at end of file

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

+package chat.rocket.android.chatroom.presentation
+
+import chat.rocket.android.R
+import chat.rocket.android.chatroom.ui.ChatRoomActivity
+import chat.rocket.android.members.ui.newInstance
+import chat.rocket.android.util.extensions.addFragmentBackStack
+
+class ChatRoomNavigator(internal val activity: ChatRoomActivity) {
+
+    fun toMembersList(chatRoomId: String, chatRoomType: String) {
+        activity.addFragmentBackStack("MembersFragment", R.id.fragment_container) {
+            newInstance(chatRoomId, chatRoomType)
+        }
+    }
+}
\ No newline at end of file

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

 package chat.rocket.android.chatroom.presentation
 
 import android.net.Uri
-import chat.rocket.android.chatroom.viewmodel.MessageViewModel
+import chat.rocket.android.chatroom.viewmodel.BaseViewModel
+import chat.rocket.android.chatroom.viewmodel.suggestion.ChatRoomSuggestionViewModel
+import chat.rocket.android.chatroom.viewmodel.suggestion.CommandSuggestionViewModel
+import chat.rocket.android.chatroom.viewmodel.suggestion.PeopleSuggestionViewModel
 import chat.rocket.android.core.behaviours.LoadingView
 import chat.rocket.android.core.behaviours.MessageView
+import chat.rocket.core.internal.realtime.State
 
 interface ChatRoomView : LoadingView, MessageView {
 
@@ -12,7 +16,7 @@ interface ChatRoomView : LoadingView, MessageView {
      *
      * @param dataSet The data set to show.
      */
-    fun showMessages(dataSet: List<MessageViewModel>)
+    fun showMessages(dataSet: List<BaseViewModel<*>>)
 
     /**
      * Send a message to a chat room.
@@ -21,6 +25,11 @@ interface ChatRoomView : LoadingView, MessageView {
      */
     fun sendMessage(text: String)
 
+    /**
+     * Perform file selection with the mime type [filter]
+     */
+    fun showFileSelection(filter: Array<String>)
+
     /**
      * Uploads a file to a chat room.
      *
@@ -38,7 +47,7 @@ interface ChatRoomView : LoadingView, MessageView {
      *
      * @param message The (recent) message sent to a chat room.
      */
-    fun showNewMessage(message: MessageViewModel)
+    fun showNewMessage(message: List<BaseViewModel<*>>)
 
     /**
      * Dispatch to the recycler views adapter that we should remove a message.
@@ -52,7 +61,7 @@ interface ChatRoomView : LoadingView, MessageView {
      *
      * @param index The index of the changed message
      */
-    fun dispatchUpdateMessage(index: Int, message: MessageViewModel)
+    fun dispatchUpdateMessage(index: Int, message: List<BaseViewModel<*>>)
 
     /**
      * Show reply status above the message composer.
@@ -75,7 +84,38 @@ interface ChatRoomView : LoadingView, MessageView {
      */
     fun showEditingAction(roomId: String, messageId: String, text: String)
 
-    fun disableMessageInput()
+    /**
+     * Disabling the send message button avoids the user tap this button multiple
+     * times to send a same message.
+     */
+    fun disableSendMessageButton()
+
+    /**
+     * Enables the send message button.
+     */
+    fun enableSendMessageButton()
 
-    fun enableMessageInput(clear: Boolean = false)
+    /**
+     * Clears the message composition.
+     */
+    fun clearMessageComposition()
+
+    fun showInvalidFileSize(fileSize: Int, maxFileSize: Int)
+
+    fun showConnectionState(state: State)
+    fun populatePeopleSuggestions(members: List<PeopleSuggestionViewModel>)
+    fun populateRoomSuggestions(chatRooms: List<ChatRoomSuggestionViewModel>)
+    /**
+     * This user has joined the chat callback.
+     */
+    fun onJoined()
+
+    fun showReactionsPopup(messageId: String)
+
+    /**
+     * Show list of commands.
+     *
+     * @param commands The list of available commands.
+     */
+    fun populateCommandSuggestions(commands: List<CommandSuggestionViewModel>)
 }
\ No newline at end of file

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

 package chat.rocket.android.chatroom.presentation
 
-import chat.rocket.android.chatroom.viewmodel.MessageViewModelMapper
+import chat.rocket.android.chatroom.viewmodel.ViewModelMapper
 import chat.rocket.android.core.lifecycle.CancelStrategy
 import chat.rocket.android.server.domain.GetChatRoomsInteractor
 import chat.rocket.android.server.domain.GetCurrentServerInteractor
@@ -11,6 +11,7 @@ import chat.rocket.common.RocketChatException
 import chat.rocket.common.util.ifNull
 import chat.rocket.core.internal.rest.getRoomPinnedMessages
 import chat.rocket.core.model.Value
+import chat.rocket.core.model.isSystemMessage
 import timber.log.Timber
 import javax.inject.Inject
 
@@ -18,7 +19,7 @@ class PinnedMessagesPresenter @Inject constructor(private val view: PinnedMessag
                                                   private val strategy: CancelStrategy,
                                                   private val serverInteractor: GetCurrentServerInteractor,
                                                   private val roomsInteractor: GetChatRoomsInteractor,
-                                                  private val mapper: MessageViewModelMapper,
+                                                  private val mapper: ViewModelMapper,
                                                   factory: RocketChatClientFactory,
                                                   getSettingsInteractor: GetSettingsInteractor) {
 
@@ -41,8 +42,7 @@ class PinnedMessagesPresenter @Inject constructor(private val view: PinnedMessag
                     val pinnedMessages =
                         client.getRoomPinnedMessages(roomId, room.type, pinnedMessagesListOffset)
                     pinnedMessagesListOffset = pinnedMessages.offset.toInt()
-                    val messageList = mapper.mapToViewModelList(pinnedMessages.result, settings)
-                        .filterNot { it.isSystemMessage }
+                    val messageList = mapper.map(pinnedMessages.result.filterNot { it.isSystemMessage() })
                     view.showPinnedMessages(messageList)
                     view.hideLoading()
                 }.ifNull {

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

 package chat.rocket.android.chatroom.presentation
 
-import chat.rocket.android.chatroom.viewmodel.MessageViewModel
+import chat.rocket.android.chatroom.viewmodel.BaseViewModel
 import chat.rocket.android.core.behaviours.LoadingView
 import chat.rocket.android.core.behaviours.MessageView
 
@@ -11,5 +11,5 @@ interface PinnedMessagesView : MessageView, LoadingView {
      *
      * @param pinnedMessages The list of pinned messages.
      */
-    fun showPinnedMessages(pinnedMessages: List<MessageViewModel>)
+    fun showPinnedMessages(pinnedMessages: List<BaseViewModel<*>>)
 }
\ No newline at end of file

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

 package chat.rocket.android.chatroom.ui
 
+import DrawableHelper
 import android.content.Context
 import android.content.Intent
+import android.graphics.drawable.Drawable
 import android.os.Bundle
 import android.support.v4.app.Fragment
 import android.support.v7.app.AppCompatActivity
 import chat.rocket.android.R
+import chat.rocket.android.server.domain.GetCurrentServerInteractor
+import chat.rocket.android.server.infraestructure.ConnectionManagerFactory
 import chat.rocket.android.util.extensions.addFragment
 import chat.rocket.android.util.extensions.textContent
+import chat.rocket.common.model.RoomType
+import chat.rocket.common.model.roomTypeOf
 import dagger.android.AndroidInjection
 import dagger.android.AndroidInjector
 import dagger.android.DispatchingAndroidInjector
 import dagger.android.support.HasSupportFragmentInjector
 import kotlinx.android.synthetic.main.app_bar_chat_room.*
 import javax.inject.Inject
+import timber.log.Timber
 
 
-fun Context.chatRoomIntent(chatRoomId: String, chatRoomName: String, chatRoomType: String, isChatRoomReadOnly: Boolean): Intent {
+fun Context.chatRoomIntent(chatRoomId: String,
+                           chatRoomName: String,
+                           chatRoomType: String,
+                           isChatRoomReadOnly: Boolean,
+                           chatRoomLastSeen: Long,
+                           isChatRoomSubscribed: Boolean = true): Intent {
     return Intent(this, ChatRoomActivity::class.java).apply {
         putExtra(INTENT_CHAT_ROOM_ID, chatRoomId)
         putExtra(INTENT_CHAT_ROOM_NAME, chatRoomName)
         putExtra(INTENT_CHAT_ROOM_TYPE, chatRoomType)
         putExtra(INTENT_IS_CHAT_ROOM_READ_ONLY, isChatRoomReadOnly)
+        putExtra(INTENT_CHAT_ROOM_LAST_SEEN, chatRoomLastSeen)
+        putExtra(INTENT_CHAT_IS_SUBSCRIBED, isChatRoomSubscribed)
     }
 }
 
@@ -29,19 +43,31 @@ private const val INTENT_CHAT_ROOM_ID = "chat_room_id"
 private const val INTENT_CHAT_ROOM_NAME = "chat_room_name"
 private const val INTENT_CHAT_ROOM_TYPE = "chat_room_type"
 private const val INTENT_IS_CHAT_ROOM_READ_ONLY = "is_chat_room_read_only"
+private const val INTENT_CHAT_ROOM_LAST_SEEN = "chat_room_last_seen"
+private const val INTENT_CHAT_IS_SUBSCRIBED = "is_chat_room_subscribed"
 
 class ChatRoomActivity : AppCompatActivity(), HasSupportFragmentInjector {
     @Inject lateinit var fragmentDispatchingAndroidInjector: DispatchingAndroidInjector<Fragment>
+
+    // TODO - workaround for now... We will move to a single activity
+    @Inject lateinit var serverInteractor: GetCurrentServerInteractor
+    @Inject lateinit var managerFactory: ConnectionManagerFactory
+
     private lateinit var chatRoomId: String
     private lateinit var chatRoomName: String
     private lateinit var chatRoomType: String
     private var isChatRoomReadOnly: Boolean = false
+    private var isChatRoomSubscribed: Boolean = true
+    private var chatRoomLastSeen: Long = -1L
 
     override fun onCreate(savedInstanceState: Bundle?) {
         AndroidInjection.inject(this)
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_chat_room)
 
+        // Workaround for when we are coming to the app via the recents app and the app was killed.
+        managerFactory.create(serverInteractor.get()!!).connect()
+
         chatRoomId = intent.getStringExtra(INTENT_CHAT_ROOM_ID)
         requireNotNull(chatRoomId) { "no chat_room_id provided in Intent extras" }
 
@@ -54,28 +80,63 @@ class ChatRoomActivity : AppCompatActivity(), HasSupportFragmentInjector {
         isChatRoomReadOnly = intent.getBooleanExtra(INTENT_IS_CHAT_ROOM_READ_ONLY, true)
         requireNotNull(chatRoomType) { "no is_chat_room_read_only provided in Intent extras" }
 
-        setupToolbar(chatRoomName)
+        setupToolbar()
+
+        chatRoomLastSeen = intent.getLongExtra(INTENT_CHAT_ROOM_LAST_SEEN, -1)
 
-        addFragment("ChatRoomFragment", R.id.fragment_container) {
-            newInstance(chatRoomId, chatRoomName, chatRoomType, isChatRoomReadOnly)
+        isChatRoomSubscribed = intent.getBooleanExtra(INTENT_CHAT_IS_SUBSCRIBED, true)
+
+        if (supportFragmentManager.findFragmentByTag("ChatRoomFragment") == null) {
+            addFragment("ChatRoomFragment", R.id.fragment_container) {
+                newInstance(chatRoomId, chatRoomName, chatRoomType, isChatRoomReadOnly, chatRoomLastSeen,
+                        isChatRoomSubscribed)
+            }
         }
     }
 
-    override fun onBackPressed() = finishActivity()
+    override fun onBackPressed() {
+        finishActivity()
+    }
 
     override fun supportFragmentInjector(): AndroidInjector<Fragment> {
         return fragmentDispatchingAndroidInjector
     }
 
-    private fun setupToolbar(chatRoomName: String) {
+    private fun setupToolbar() {
         setSupportActionBar(toolbar)
         supportActionBar?.setDisplayShowTitleEnabled(false)
         text_room_name.textContent = chatRoomName
+
+        val roomType = roomTypeOf(chatRoomType)
+        val drawable = when (roomType) {
+            is RoomType.Channel -> {
+                DrawableHelper.getDrawableFromId(R.drawable.ic_room_channel, this)
+            }
+            is RoomType.PrivateGroup -> {
+                DrawableHelper.getDrawableFromId(R.drawable.ic_room_lock, this)
+            }
+            is RoomType.DirectMessage -> {
+                DrawableHelper.getDrawableFromId(R.drawable.ic_room_dm, this)
+            }
+            else -> null
+        }
+
+        drawable?.let {
+            val wrappedDrawable = DrawableHelper.wrapDrawable(it)
+            val mutableDrawable = wrappedDrawable.mutate()
+            DrawableHelper.tintDrawable(mutableDrawable, this, R.color.white)
+            DrawableHelper.compoundDrawable(text_room_name, mutableDrawable)
+        }
+
         toolbar.setNavigationOnClickListener {
             finishActivity()
         }
     }
 
+    fun setupToolbarTitle(toolbarTitle: String) {
+        text_room_name.textContent = toolbarTitle
+    }
+
     private fun finishActivity() {
         super.onBackPressed()
         overridePendingTransition(R.anim.close_enter, R.anim.close_exit)

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

-package chat.rocket.android.chatroom.ui
-
-import android.support.v7.widget.RecyclerView
-import android.text.method.LinkMovementMethod
-import android.view.MenuItem
-import android.view.View
-import android.view.ViewGroup
-import android.widget.TextView
-import chat.rocket.android.R
-import chat.rocket.android.chatroom.presentation.ChatRoomPresenter
-import chat.rocket.android.chatroom.ui.bottomsheet.BottomSheetMenu
-import chat.rocket.android.chatroom.ui.bottomsheet.adapter.ActionListAdapter
-import chat.rocket.android.chatroom.viewmodel.AttachmentType
-import chat.rocket.android.chatroom.viewmodel.MessageViewModel
-import chat.rocket.android.player.PlayerActivity
-import chat.rocket.android.util.extensions.content
-import chat.rocket.android.util.extensions.inflate
-import chat.rocket.android.util.extensions.setVisible
-import com.facebook.drawee.view.SimpleDraweeView
-import com.stfalcon.frescoimageviewer.ImageViewer
-import kotlinx.android.synthetic.main.avatar.view.*
-import kotlinx.android.synthetic.main.item_message.view.*
-import kotlinx.android.synthetic.main.message_attachment.view.*
-import ru.whalemare.sheetmenu.extension.inflate
-import ru.whalemare.sheetmenu.extension.toList
-
-class ChatRoomAdapter(private val roomType: String,
-                      private val roomName: String,
-                      private val presenter: ChatRoomPresenter) : RecyclerView.Adapter<ChatRoomAdapter.ViewHolder>() {
-    private val dataSet = ArrayList<MessageViewModel>()
-
-    init {
-        setHasStableIds(true)
-    }
-
-    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder =
-            ViewHolder(parent.inflate(R.layout.item_message), roomType, roomName, presenter)
-
-    override fun onBindViewHolder(holder: ViewHolder, position: Int) = holder.bind(dataSet[position])
-
-    override fun getItemCount(): Int = dataSet.size
-
-    override fun getItemViewType(position: Int): Int = position
-
-    override fun getItemId(position: Int): Long = dataSet[position].id.hashCode().toLong()
-
-    fun addDataSet(dataSet: List<MessageViewModel>) {
-        val previousDataSetSize = this.dataSet.size
-        this.dataSet.addAll(previousDataSetSize, dataSet)
-        notifyItemRangeInserted(previousDataSetSize, dataSet.size)
-    }
-
-    fun addItem(message: MessageViewModel) {
-        dataSet.add(0, message)
-        notifyItemInserted(0)
-    }
-
-    fun updateItem(message: MessageViewModel) {
-        val index = dataSet.indexOfFirst { it.id == message.id }
-        if (index > -1) {
-            dataSet[index] = message
-            notifyItemChanged(index)
-        }
-    }
-
-    fun removeItem(messageId: String) {
-        val index = dataSet.indexOfFirst { it.id == messageId }
-        if (index > -1) {
-            dataSet.removeAt(index)
-            notifyItemRemoved(index)
-        }
-    }
-
-    class ViewHolder(itemView: View,
-                     val roomType: String,
-                     val roomName: String,
-                     val presenter: ChatRoomPresenter) : RecyclerView.ViewHolder(itemView), MenuItem.OnMenuItemClickListener {
-        private lateinit var messageViewModel: MessageViewModel
-
-        fun bind(message: MessageViewModel) = with(itemView) {
-            messageViewModel = message
-
-            image_avatar.setImageURI(message.avatarUri)
-            text_sender.text = message.senderName
-            text_message_time.content = message.time
-            text_content.content = message.content
-            text_content.movementMethod = LinkMovementMethod()
-            bindAttachment(message, message_attachment, image_attachment, audio_video_attachment, file_name)
-
-            text_content.setOnClickListener {
-                if (!message.isSystemMessage) {
-                    val menuItems = it.context.inflate(R.menu.message_actions).toList()
-                    menuItems.find { it.itemId == R.id.action_menu_msg_pin_unpin }?.apply {
-                        val isPinned = message.isPinned
-                        setTitle(if (isPinned) R.string.action_msg_unpin else R.string.action_msg_pin)
-                        setChecked(isPinned)
-                    }
-                    val adapter = ActionListAdapter(menuItems, this@ViewHolder)
-                    BottomSheetMenu(adapter).apply {
-
-                    }.show(it.context)
-                }
-            }
-        }
-
-        override fun onMenuItemClick(item: MenuItem): Boolean {
-            messageViewModel.apply {
-                when (item.itemId) {
-                    R.id.action_menu_msg_delete -> presenter.deleteMessage(roomId, id)
-                    R.id.action_menu_msg_quote -> presenter.citeMessage(roomType, roomName, id, false)
-                    R.id.action_menu_msg_reply -> presenter.citeMessage(roomType, roomName, id, true)
-                    R.id.action_menu_msg_copy -> presenter.copyMessage(id)
-                    R.id.action_menu_msg_edit -> presenter.editMessage(roomId, id, getOriginalMessage())
-                    R.id.action_menu_msg_pin_unpin -> {
-                        with(item) {
-                            if (!isChecked) {
-                                presenter.pinMessage(id)
-                            } else {
-                                presenter.unpinMessage(id)
-                            }
-                        }
-                    }
-                    else -> TODO("Not implemented")
-                }
-            }
-            return true
-        }
-
-        private fun bindAttachment(message: MessageViewModel,
-                                   attachment_container: View,
-                                   image_attachment: SimpleDraweeView,
-                                   audio_video_attachment: View,
-                                   file_name: TextView) {
-            with(message) {
-                if (attachmentUrl == null || attachmentType == null) {
-                    attachment_container.setVisible(false)
-                    return
-                }
-
-                var imageVisible = false
-                var videoVisible = false
-
-                attachment_container.setVisible(true)
-                when (message.attachmentType) {
-                    is AttachmentType.Image -> {
-                        imageVisible = true
-                        image_attachment.setImageURI(message.attachmentUrl)
-                        image_attachment.setOnClickListener { view ->
-                            // TODO - implement a proper image viewer with a proper Transition
-                            ImageViewer.Builder(view.context, listOf(message.attachmentUrl))
-                                    .setStartPosition(0)
-                                    .show()
-                        }
-                    }
-                    is AttachmentType.Video,
-                    is AttachmentType.Audio -> {
-                        videoVisible = true
-                        audio_video_attachment.setOnClickListener { view ->
-                            message.attachmentUrl?.let { url ->
-                                PlayerActivity.play(view.context, url)
-                            }
-                        }
-                    }
-                }
-
-                image_attachment.setVisible(imageVisible)
-                audio_video_attachment.setVisible(videoVisible)
-                file_name.text = message.attachmentTitle
-            }
-        }
-    }
-}
\ No newline at end of file

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

-package chat.rocket.android.chatroom.ui
-
-import android.support.v7.widget.RecyclerView
-import android.text.method.LinkMovementMethod
-import android.view.View
-import android.view.ViewGroup
-import android.widget.ImageView
-import android.widget.TextView
-import chat.rocket.android.R
-import chat.rocket.android.chatroom.viewmodel.AttachmentType
-import chat.rocket.android.chatroom.viewmodel.MessageViewModel
-import chat.rocket.android.player.PlayerActivity
-import chat.rocket.android.util.extensions.content
-import chat.rocket.android.util.extensions.inflate
-import chat.rocket.android.util.extensions.setVisible
-import com.facebook.drawee.view.SimpleDraweeView
-import com.stfalcon.frescoimageviewer.ImageViewer
-import kotlinx.android.synthetic.main.avatar.view.*
-import kotlinx.android.synthetic.main.item_message.view.*
-import kotlinx.android.synthetic.main.message_attachment.view.*
-
-class PinnedMessagesAdapter : RecyclerView.Adapter<PinnedMessagesAdapter.ViewHolder>() {
-
-    init {
-        setHasStableIds(true)
-    }
-
-    val dataSet = ArrayList<MessageViewModel>()
-
-    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder =
-            ViewHolder(parent.inflate(R.layout.item_message))
-
-    override fun onBindViewHolder(holder: ViewHolder, position: Int) = holder.bind(dataSet[position])
-
-    override fun onBindViewHolder(holder: ViewHolder, position: Int, payloads: MutableList<Any>?) {
-        onBindViewHolder(holder, position)
-    }
-
-    override fun getItemCount(): Int = dataSet.size
-
-    override fun getItemViewType(position: Int): Int = position
-
-    fun addDataSet(dataSet: List<MessageViewModel>) {
-        val previousDataSetSize = this.dataSet.size
-        this.dataSet.addAll(previousDataSetSize, dataSet)
-        notifyItemRangeInserted(previousDataSetSize, dataSet.size)
-    }
-
-    fun addItem(message: MessageViewModel) {
-        dataSet.add(0, message)
-        notifyItemInserted(0)
-    }
-
-    fun updateItem(message: MessageViewModel) {
-        val index = dataSet.indexOfFirst { it.id == message.id }
-        if (index > -1) {
-            dataSet[index] = message
-            notifyItemChanged(index)
-        }
-    }
-
-    fun removeItem(messageId: String) {
-        val index = dataSet.indexOfFirst { it.id == messageId }
-        if (index > -1) {
-            dataSet.removeAt(index)
-            notifyItemRemoved(index)
-        }
-    }
-
-    override fun getItemId(position: Int): Long {
-        return dataSet[position].id.hashCode().toLong()
-    }
-
-    class ViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
-
-        private lateinit var messageViewModel: MessageViewModel
-
-        fun bind(message: MessageViewModel) = with(itemView) {
-            messageViewModel = message
-            image_avatar.setImageURI(message.avatarUri)
-            text_sender.content = message.senderName
-            text_message_time.content = message.time
-            text_content.content = message.content
-            text_content.movementMethod = LinkMovementMethod()
-
-            bindAttachment(message, message_attachment, image_attachment, audio_video_attachment,
-                    file_name)
-        }
-
-        private fun bindAttachment(message: MessageViewModel,
-                                   attachment_container: View,
-                                   image_attachment: SimpleDraweeView,
-                                   audio_video_attachment: View,
-                                   file_name: TextView) {
-            with(message) {
-                if (attachmentUrl == null || attachmentType == null) {
-                    attachment_container.setVisible(false)
-                    return
-                }
-
-                var imageVisible = false
-                var videoVisible = false
-
-                attachment_container.setVisible(true)
-                when (message.attachmentType) {
-                    is AttachmentType.Image -> {
-                        imageVisible = true
-                        image_attachment.setImageURI(message.attachmentUrl)
-                        image_attachment.setOnClickListener { view ->
-                            // TODO - implement a proper image viewer with a proper Transition
-                            ImageViewer.Builder(view.context, listOf(message.attachmentUrl))
-                                    .setStartPosition(0)
-                                    .show()
-                        }
-                    }
-                    is AttachmentType.Video,
-                    is AttachmentType.Audio -> {
-                        videoVisible = true
-                        audio_video_attachment.setOnClickListener { view ->
-                            message.attachmentUrl?.let { url ->
-                                PlayerActivity.play(view.context, url)
-                            }
-                        }
-                    }
-                }
-
-                image_attachment.setVisible(imageVisible)
-                audio_video_attachment.setVisible(videoVisible)
-                file_name.text = message.attachmentTitle
-            }
-        }
-    }
-}
\ No newline at end of file

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

@@ -9,9 +9,10 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import chat.rocket.android.R
+import chat.rocket.android.chatroom.adapter.ChatRoomAdapter
 import chat.rocket.android.chatroom.presentation.PinnedMessagesPresenter
 import chat.rocket.android.chatroom.presentation.PinnedMessagesView
-import chat.rocket.android.chatroom.viewmodel.MessageViewModel
+import chat.rocket.android.chatroom.viewmodel.BaseViewModel
 import chat.rocket.android.helper.EndlessRecyclerViewScrollListener
 import chat.rocket.android.util.extensions.setVisible
 import chat.rocket.android.util.extensions.showToast
@@ -39,7 +40,7 @@ class PinnedMessagesFragment : Fragment(), PinnedMessagesView {
     private lateinit var chatRoomId: String
     private lateinit var chatRoomName: String
     private lateinit var chatRoomType: String
-    private lateinit var adapter: PinnedMessagesAdapter
+    private lateinit var adapter: ChatRoomAdapter
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -71,10 +72,11 @@ class PinnedMessagesFragment : Fragment(), PinnedMessagesView {
 
     override fun showGenericErrorMessage() = showMessage(getString(R.string.msg_generic_error))
 
-    override fun showPinnedMessages(pinnedMessages: List<MessageViewModel>) {
+    override fun showPinnedMessages(pinnedMessages: List<BaseViewModel<*>>) {
         activity?.apply {
             if (recycler_view_pinned.adapter == null) {
-                adapter = PinnedMessagesAdapter()
+                // TODO - add a better constructor for this case...
+                adapter = ChatRoomAdapter(chatRoomType, chatRoomName, null, false)
                 recycler_view_pinned.adapter = adapter
                 val linearLayoutManager = LinearLayoutManager(context, LinearLayoutManager.VERTICAL, false)
                 recycler_view_pinned.layoutManager = linearLayoutManager
@@ -88,7 +90,7 @@ class PinnedMessagesFragment : Fragment(), PinnedMessagesView {
                 }
             }
 
-            adapter.addDataSet(pinnedMessages)
+            adapter.appendData(pinnedMessages)
         }
     }
 }
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatroom/viewmodel/AudioAttachmentViewModel.kt

+package chat.rocket.android.chatroom.viewmodel
+
+import chat.rocket.android.R
+import chat.rocket.core.model.Message
+import chat.rocket.core.model.attachment.AudioAttachment
+
+data class AudioAttachmentViewModel(
+        override val message: Message,
+        override val rawData: AudioAttachment,
+        override val messageId: String,
+        override val attachmentUrl: String,
+        override val attachmentTitle: CharSequence,
+        override val id: Long,
+        override var reactions: List<ReactionViewModel>,
+        override var nextDownStreamMessage: BaseViewModel<*>? = null
+        ) : BaseFileAttachmentViewModel<AudioAttachment> {
+    override val viewType: Int
+        get() = BaseViewModel.ViewType.AUDIO_ATTACHMENT.viewType
+    override val layoutId: Int
+        get() = R.layout.message_attachment
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatroom/viewmodel/BaseFileAttachmentViewModel.kt

+package chat.rocket.android.chatroom.viewmodel
+
+interface BaseFileAttachmentViewModel<out T> : BaseViewModel<T> {
+    val attachmentUrl: String
+    val attachmentTitle: CharSequence
+    val id: Long
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatroom/viewmodel/BaseMessageViewModel.kt

+package chat.rocket.android.chatroom.viewmodel
+
+interface BaseMessageViewModel<out T> : BaseViewModel<T> {
+    val avatar: String
+    val time: CharSequence
+    val senderName: CharSequence
+    val content: CharSequence
+    val isPinned: Boolean
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatroom/viewmodel/BaseViewModel.kt

+package chat.rocket.android.chatroom.viewmodel
+
+import chat.rocket.core.model.Message
+import java.security.InvalidParameterException
+
+interface BaseViewModel<out T> {
+    val message: Message
+    val rawData: T
+    val messageId: String
+    val viewType: Int
+    val layoutId: Int
+    var reactions: List<ReactionViewModel>
+    var nextDownStreamMessage: BaseViewModel<*>?
+
+    enum class ViewType(val viewType: Int) {
+        MESSAGE(0),
+        SYSTEM_MESSAGE(1),
+        URL_PREVIEW(2),
+        IMAGE_ATTACHMENT(3),
+        VIDEO_ATTACHMENT(4),
+        AUDIO_ATTACHMENT(5),
+        MESSAGE_ATTACHMENT(6)
+    }
+}
+
+internal fun Int.toViewType(): BaseViewModel.ViewType {
+    return BaseViewModel.ViewType.values().firstOrNull { it.viewType == this }
+            ?: throw InvalidParameterException("Invalid viewType: $this for BaseViewModel.ViewType")
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatroom/viewmodel/ImageAttachmentViewModel.kt

+package chat.rocket.android.chatroom.viewmodel
+
+import chat.rocket.android.R
+import chat.rocket.core.model.Message
+import chat.rocket.core.model.attachment.ImageAttachment
+
+data class ImageAttachmentViewModel(
+        override val message: Message,
+        override val rawData: ImageAttachment,
+        override val messageId: String,
+        override val attachmentUrl: String,
+        override val attachmentTitle: CharSequence,
+        override val id: Long,
+        override var reactions: List<ReactionViewModel>,
+        override var nextDownStreamMessage: BaseViewModel<*>? = null
+) : BaseFileAttachmentViewModel<ImageAttachment> {
+    override val viewType: Int
+        get() = BaseViewModel.ViewType.IMAGE_ATTACHMENT.viewType
+    override val layoutId: Int
+        get() = R.layout.message_attachment
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatroom/viewmodel/MessageViewModelMapper.kt

-package chat.rocket.android.chatroom.viewmodel
-
-import android.content.Context
-import chat.rocket.android.helper.MessageParser
-import chat.rocket.android.infrastructure.LocalRepository
-import chat.rocket.android.server.domain.CurrentServerRepository
-import chat.rocket.android.server.domain.MessagesRepository
-import chat.rocket.core.TokenRepository
-import chat.rocket.core.model.Message
-import chat.rocket.core.model.Value
-import kotlinx.coroutines.experimental.CommonPool
-import kotlinx.coroutines.experimental.withContext
-import javax.inject.Inject
-
-class MessageViewModelMapper @Inject constructor(private val context: Context,
-                                                 private val tokenRepository: TokenRepository,
-                                                 private val messageParser: MessageParser,
-                                                 private val messagesRepository: MessagesRepository,
-                                                 private val localRepository: LocalRepository,
-                                                 private val currentServerRepository: CurrentServerRepository) {
-
-    suspend fun mapToViewModel(message: Message, settings: Map<String, Value<Any>>): MessageViewModel = withContext(CommonPool) {
-        MessageViewModel(
-                this@MessageViewModelMapper.context,
-                tokenRepository.get(),
-                message,
-                settings,
-                messageParser,
-                messagesRepository,
-                localRepository,
-                currentServerRepository
-        )
-    }
-
-    suspend fun mapToViewModelList(messageList: List<Message>, settings: Map<String, Value<Any>>): List<MessageViewModel> {
-        return messageList.map { MessageViewModel(context, tokenRepository.get(), it, settings,
-                messageParser, messagesRepository, localRepository, currentServerRepository) }
-    }
-}
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatroom/viewmodel/ReactionViewModel.kt

+package chat.rocket.android.chatroom.viewmodel
+
+data class ReactionViewModel(
+        val messageId: String,
+        val shortname: String,
+        val unicode: CharSequence,
+        val count: Int,
+        val usernames: List<String> = emptyList()
+)
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatroom/viewmodel/suggestion/ChatRoomSuggestionViewModel.kt

+package chat.rocket.android.chatroom.viewmodel.suggestion
+
+import chat.rocket.android.widget.autocompletion.model.SuggestionModel
+
+class ChatRoomSuggestionViewModel(text: String,
+                                  val fullName: String,
+                                  val name: String,
+                                  searchList: List<String>) : SuggestionModel(text, searchList, false) {
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatroom/viewmodel/suggestion/CommandSuggestionViewModel.kt

+package chat.rocket.android.chatroom.viewmodel.suggestion
+
+import chat.rocket.android.widget.autocompletion.model.SuggestionModel
+
+class CommandSuggestionViewModel(text: String,
+                                 val description: String,
+                                 searchList: List<String>) : SuggestionModel(text, searchList)
\ No newline at end of file