[needs help] Support announcements (#1977)

* Implement announcements activity

* Update reactions without api access

* Add badge style

* Use emptyList() as default parameter

* Simplify newIntent

* Use List instead of Array

* Remove unneeded ConstraintLayout

* Add lineSpacingMultiplier

* Fix wording

* Apply material design's default chip style

* Dismiss announcements automatically

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

@@ -0,0 +1,57 @@
+/* Copyright 2020 Tusky Contributors
+ *
+ * This file is a part of Tusky.
+ *
+ * This program is free software; you can redistribute it and/or modify it under the terms of the
+ * GNU General Public License as published by the Free Software Foundation; either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * Tusky is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
+ * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+ * Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with Tusky; if not,
+ * see <http://www.gnu.org/licenses>. */
+
+package com.keylesspalace.tusky.entity
+
+import android.text.Spanned
+import com.google.gson.annotations.SerializedName
+import java.util.*
+
+data class Announcement(
+        val id: String,
+        val content: Spanned,
+        @SerializedName("starts_at") val startsAt: Date?,
+        @SerializedName("ends_at") val endsAt: Date?,
+        @SerializedName("all_day") val allDay: Boolean,
+        @SerializedName("published_at") val publishedAt: Date,
+        @SerializedName("updated_at") val updatedAt: Date,
+        val read: Boolean,
+        val mentions: List<Status.Mention>,
+        val statuses: List<Status>,
+        val tags: List<HashTag>,
+        val emojis: List<Emoji>,
+        val reactions: List<Reaction>
+) {
+
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (other == null || javaClass != other.javaClass) return false
+
+        val announcement = other as Announcement?
+        return id == announcement?.id
+    }
+
+    override fun hashCode(): Int {
+        return id.hashCode()
+    }
+
+    data class Reaction(
+            val name: String,
+            var count: Int,
+            var me: Boolean,
+            val url: String?,
+            @SerializedName("static_url") val staticUrl: String?
+    )
+}

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

@@ -23,5 +23,6 @@ import kotlinx.android.parcel.Parcelize
 data class Emoji(
         val shortcode: String,
         val url: String,
+        @SerializedName("static_url") val staticUrl: String,
         @SerializedName("visible_in_picker") val visibleInPicker: Boolean?
-) : Parcelable
+) : Parcelable