Do not allow forwarding of content more than 13 lines long to stories.

app/src/main/java/org/thoughtcrime/securesms/sharing/MultiShareArgs.java

@@ -168,6 +168,10 @@ public final class MultiShareArgs implements Parcelable {
       return false;
     }
 
+    if (!Util.isEmpty(getDraftText()) && getDraftText().split("\n").length > Stories.MAX_TEXT_STORY_LINE_COUNT) {
+      return false;
+    }
+
     if (!Util.isEmpty(getDraftText())) {
       BreakIteratorCompat breakIteratorCompat = BreakIteratorCompat.getInstance();
       breakIteratorCompat.setText(getDraftText());

app/src/main/java/org/thoughtcrime/securesms/stories/Stories.kt

@@ -54,6 +54,7 @@ object Stories {
   private val TAG = Log.tag(Stories::class.java)
 
   const val MAX_TEXT_STORY_SIZE = 700
+  const val MAX_TEXT_STORY_LINE_COUNT = 13
   const val MAX_CAPTION_SIZE = 1500
 
   @JvmField