Poll notifications (#1229)

* show poll notifications in the app

* show poll notifications in the app

* allow filtering poll notifications in the poll fragment

* show poll notifications in system notifications

app/src/main/java/com/keylesspalace/tusky/entity/Notification.kt

@@ -30,7 +30,8 @@ data class Notification(
         MENTION("mention"),
         REBLOG("reblog"),
         FAVOURITE("favourite"),
-        FOLLOW("follow");
+        FOLLOW("follow"),
+        POLL("poll");
 
         companion object {
 
@@ -42,7 +43,7 @@ data class Notification(
                 }
                 return UNKNOWN
             }
-            val asList = listOf(MENTION,REBLOG,FAVOURITE,FOLLOW)
+            val asList = listOf(MENTION, REBLOG, FAVOURITE, FOLLOW, POLL)
         }
 
         override fun toString(): String {

app/src/main/java/com/keylesspalace/tusky/entity/Poll.kt

@@ -2,6 +2,7 @@ package com.keylesspalace.tusky.entity
 
 import com.google.gson.annotations.SerializedName
 import java.util.*
+import kotlin.math.roundToInt
 
 data class Poll(
         val id: String,
@@ -30,4 +31,12 @@ data class Poll(
 data class PollOption(
         val title: String,
         @SerializedName("votes_count") val votesCount: Int
-)
+) {
+    fun getPercent(totalVotes: Int): Int {
+        return if (votesCount == 0) {
+            0
+        } else {
+            (votesCount / totalVotes.toDouble() * 100).roundToInt()
+        }
+    }
+}