Mentions of users available in a new line

Author: martinmitrevski

CHANGELOG.md

@@ -11,6 +11,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 ### 🐞 Fixed
 - Channel actions popup wrong appearance using a custom `NavigationView`
 - Channel list automatic channel selection disabled for compact iPad screen size
+- Mentions of users available in a new line
 
 # [4.28.0](https://github.com/GetStream/stream-chat-swiftui/releases/tag/4.28.0)
 _February 28, 2023_

Sources/StreamChatSwiftUI/ChatChannel/Composer/Suggestions/TypingSuggester.swift

@@ -98,7 +98,7 @@ public struct TypingSuggester {
         let charIndexBeforeSymbol = firstSymbolBeforeCaret.lowerBound - 1
         let charRangeBeforeSymbol = NSRange(location: charIndexBeforeSymbol, length: 1)
         let textBeforeSymbol = charIndexBeforeSymbol >= 0 ? textString.substring(with: charRangeBeforeSymbol) : ""
-        guard textBeforeSymbol.isEmpty || textBeforeSymbol == " " else {
+        guard textBeforeSymbol.isEmpty || textBeforeSymbol == " " || textBeforeSymbol == "\n" else {
             return nil
         }
 

StreamChatSwiftUITests/Tests/ChatChannel/Suggestions/TypingSuggester_Tests.swift

@@ -133,6 +133,24 @@ class TypingSuggester_Tests: XCTestCase {
         XCTAssert(suggestion?.text == "Mar")
         XCTAssert(suggestion?.locationRange == NSRange(location: 5, length: 3))
     }
+    
+    func test_typingSuggester_newLine() {
+        // Given
+        let options = TypingSuggestionOptions(symbol: "@")
+        let typingSuggester = TypingSuggester(options: options)
+        let string = "\n@Mar"
+        let caretLocation = 5
+
+        // When
+        let suggestion = typingSuggester.typingSuggestion(
+            in: string,
+            caretLocation: caretLocation
+        )
+
+        // Then
+        XCTAssert(suggestion?.text == "Mar")
+        XCTAssert(suggestion?.locationRange == NSRange(location: 2, length: 3))
+    }
 
     func test_typingSuggester_onlyOnStartAllowed() {
         // Given