Add language dropdown to compose view (#2651)

* Add UI for selecting post language

* Apply selected language when sending status

* Save/restore post language with drafts

* Fall back to english if the configured language isn't found in the locale list (no-NB)

* Remove comment about no_NB

* Move language dropdown to top of compose view

* Preserve language when redrafting

* Set default language to target post's language when replying

* Add Tusky license header to new source file

* Tweak language dropdown button width

app/src/test/java/com/keylesspalace/tusky/BottomSheetActivityTest.kt

@@ -88,7 +88,8 @@ class BottomSheetActivityTest {
         pinned = false,
         muted = false,
         poll = null,
-        card = null
+        card = null,
+        language = null,
     )
     private val statusSingle = Single.just(SearchResult(emptyList(), listOf(status), emptyList()))
 

app/src/test/java/com/keylesspalace/tusky/ComposeActivityTest.kt

@@ -48,6 +48,7 @@ import org.robolectric.Robolectric
 import org.robolectric.Shadows.shadowOf
 import org.robolectric.annotation.Config
 import org.robolectric.fakes.RoboMenuItem
+import java.util.Locale
 
 /**
  * Created by charlag on 3/7/18.
@@ -444,6 +445,19 @@ class ComposeActivityTest {
         assertEquals(selectionEnd + insertText.length, editor.selectionEnd)
     }
 
+    @Test
+    fun whenNoLanguageIsGiven_defaultLanguageIsSelected() {
+        assertEquals(Locale.getDefault().language, activity.selectedLanguage)
+    }
+
+    @Test
+    fun languageGivenInComposeOptionsIsRespected() {
+        val language = "no"
+        composeOptions = ComposeActivity.ComposeOptions(language = language)
+        setupActivity()
+        assertEquals(language, activity.selectedLanguage)
+    }
+
     private fun clickUp() {
         val menuItem = RoboMenuItem(android.R.id.home)
         activity.onOptionsItemSelected(menuItem)

app/src/test/java/com/keylesspalace/tusky/FilterTest.kt

@@ -260,7 +260,8 @@ class FilterTest {
                     ownVotes = null
                 )
             } else null,
-            card = null
+            card = null,
+            language = null,
         )
     }
 }

app/src/test/java/com/keylesspalace/tusky/components/timeline/StatusMocker.kt

@@ -51,7 +51,8 @@ fun mockStatus(
     pinned = false,
     muted = false,
     poll = null,
-    card = null
+    card = null,
+    language = null,
 )
 
 fun mockStatusViewData(

app/src/test/java/com/keylesspalace/tusky/db/TimelineDaoTest.kt

@@ -463,6 +463,7 @@ class TimelineDaoTest {
             contentShowing = true,
             pinned = false,
             card = card,
+            language = null,
         )
         return Triple(status, author, reblogAuthor)
     }