Adds envelope icon indicator to direct messages on timelines, so they can be differentiated from private statuses.

app/src/main/java/com/keylesspalace/tusky/adapter/StatusViewHolder.java

@@ -19,6 +19,7 @@ import android.content.Context;
 import android.graphics.drawable.Drawable;
 import android.preference.PreferenceManager;
 import android.support.annotation.DrawableRes;
+import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.support.v4.content.ContextCompat;
 import android.support.v7.widget.RecyclerView;
@@ -173,7 +174,7 @@ class StatusViewHolder extends RecyclerView.ViewHolder {
     }
 
     /** This should only be called after setReblogged, in order to override the tint correctly. */
-    private void setRebloggingEnabled(boolean enabled) {
+    private void setRebloggingEnabled(boolean enabled, Status.Visibility visibility) {
         reblogButton.setEnabled(enabled);
 
         if (enabled) {
@@ -182,8 +183,14 @@ class StatusViewHolder extends RecyclerView.ViewHolder {
             reblogButton.setInactiveImage(inactiveId);
             reblogButton.setActiveImage(R.drawable.reblog_active);
         } else {
-            int disabledId = ThemeUtils.getDrawableId(reblogButton.getContext(),
-                    R.attr.status_reblog_disabled_drawable, R.drawable.reblog_disabled_dark);
+            int disabledId;
+            if (visibility == Status.Visibility.DIRECT) {
+                disabledId = ThemeUtils.getDrawableId(reblogButton.getContext(),
+                        R.attr.status_reblog_direct_drawable, R.drawable.reblog_direct_dark);
+            } else {
+                disabledId = ThemeUtils.getDrawableId(reblogButton.getContext(),
+                        R.attr.status_reblog_disabled_drawable, R.drawable.reblog_disabled_dark);
+            }
             reblogButton.setInactiveImage(disabledId);
             reblogButton.setActiveImage(disabledId);
         }
@@ -266,6 +273,7 @@ class StatusViewHolder extends RecyclerView.ViewHolder {
         }
     }
 
+    @NonNull
     private static String getLabelTypeText(Context context, Status.MediaAttachment.Type type) {
         switch (type) {
             default:
@@ -468,7 +476,7 @@ class StatusViewHolder extends RecyclerView.ViewHolder {
         }
 
         setupButtons(listener, realStatus.account.id);
-        setRebloggingEnabled(status.rebloggingAllowed());
+        setRebloggingEnabled(status.rebloggingAllowed(), status.getVisibility());
         if (realStatus.spoilerText.isEmpty()) {
             hideSpoilerText();
         } else {

app/src/main/res/drawable/reblog_direct_dark.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24.0"
+    android:viewportHeight="24.0">
+    <path
+        android:fillColor="@color/status_reblog_button_disabled_dark"
+        android:pathData="M20,4L4,4c-1.1,0 -1.99,0.9 -1.99,2L2,18c0,1.1 0.9,2 2,2h16c1.1,0 2,-0.9 2,-2L22,6c0,-1.1 -0.9,-2 -2,-2zM20,8l-8,5 -8,-5L4,6l8,5 8,-5v2z" />
+</vector>

app/src/main/res/drawable/reblog_direct_light.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24.0"
+    android:viewportHeight="24.0">
+    <path
+        android:fillColor="@color/status_reblog_button_disabled_light"
+        android:pathData="M20,4L4,4c-1.1,0 -1.99,0.9 -1.99,2L2,18c0,1.1 0.9,2 2,2h16c1.1,0 2,-0.9 2,-2L22,6c0,-1.1 -0.9,-2 -2,-2zM20,8l-8,5 -8,-5L4,6l8,5 8,-5v2z" />
+</vector>

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

@@ -18,6 +18,7 @@
     <attr name="image_button_style" format="reference" />
     <attr name="status_reblog_inactive_drawable" format="reference" />
     <attr name="status_reblog_disabled_drawable" format="reference" />
+    <attr name="status_reblog_direct_drawable" format="reference" />
     <attr name="status_favourite_active_drawable" format="reference" />
     <attr name="status_favourite_inactive_drawable" format="reference" />
     <attr name="content_warning_button" format="reference" />

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

@@ -48,6 +48,7 @@
         <item name="image_button_style">@style/AppTheme.ImageButton.Dark</item>
         <item name="status_reblog_inactive_drawable">@drawable/reblog_inactive_dark</item>
         <item name="status_reblog_disabled_drawable">@drawable/reblog_disabled_dark</item>
+        <item name="status_reblog_direct_drawable">@drawable/reblog_direct_dark</item>
         <item name="status_favourite_active_drawable">@drawable/favourite_active_dark</item>
         <item name="status_favourite_inactive_drawable">@drawable/favourite_inactive_dark</item>
         <item name="content_warning_button">@drawable/toggle_small</item>
@@ -125,6 +126,7 @@
         <item name="image_button_style">@style/AppTheme.ImageButton.Light</item>
         <item name="status_reblog_inactive_drawable">@drawable/reblog_inactive_light</item>
         <item name="status_reblog_disabled_drawable">@drawable/reblog_disabled_light</item>
+        <item name="status_reblog_direct_drawable">@drawable/reblog_direct_light</item>
         <item name="status_favourite_active_drawable">@drawable/favourite_active_light</item>
         <item name="status_favourite_inactive_drawable">@drawable/favourite_inactive_light</item>
         <item name="content_warning_button">@drawable/toggle_small_light</item>