From 3d40193f9ab0983a44c9c8a2e5e26e3815621bd2 Mon Sep 17 00:00:00 2001
From: Salvatore Giordano <salvatoregiordanoo@gmail.com>
Date: Thu, 23 Apr 2020 15:26:55 +0200
Subject: [PATCH] add default user image to theme

---
 example/lib/main.dart          |  7 -------
 lib/src/stream_chat.dart       |  1 +
 lib/src/stream_chat_theme.dart | 12 ++++++++++++
 lib/src/user_avatar.dart       |  2 +-
 4 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/example/lib/main.dart b/example/lib/main.dart
index 80ea02b3..32af2bd3 100644
--- a/example/lib/main.dart
+++ b/example/lib/main.dart
@@ -28,13 +28,6 @@ class MyApp extends StatelessWidget {
       themeMode: ThemeMode.system,
       home: Container(
         child: StreamChat(
-          streamChatThemeData: StreamChatThemeData(
-            defaultChannelImage: (context, channel) {
-              return Center(
-                child: Text('AAA'),
-              );
-            },
-          ),
           client: client,
           child: ChannelListPage(),
         ),
diff --git a/lib/src/stream_chat.dart b/lib/src/stream_chat.dart
index 17f3ff40..258a308f 100644
--- a/lib/src/stream_chat.dart
+++ b/lib/src/stream_chat.dart
@@ -115,6 +115,7 @@ class StreamChatState extends State<StreamChat>
     final theme = defaultTheme.copyWith(
       primaryColor: themeData?.primaryColor,
       defaultChannelImage: themeData?.defaultChannelImage,
+      defaultUserImage: themeData?.defaultUserImage,
       channelTheme: defaultTheme.channelTheme.copyWith(
         channelHeaderTheme:
             defaultTheme.channelTheme.channelHeaderTheme.copyWith(
diff --git a/lib/src/stream_chat_theme.dart b/lib/src/stream_chat_theme.dart
index 84f8a8f2..289f477d 100644
--- a/lib/src/stream_chat_theme.dart
+++ b/lib/src/stream_chat_theme.dart
@@ -54,6 +54,9 @@ class StreamChatThemeData {
   /// The widget that will be built when the channel image is unavailable
   final Widget Function(BuildContext, Channel) defaultChannelImage;
 
+  /// The widget that will be built when the user image is unavailable
+  final Widget Function(BuildContext, User) defaultUserImage;
+
   /// Create a theme from scratch
   StreamChatThemeData({
     this.primaryColor,
@@ -64,6 +67,7 @@ class StreamChatThemeData {
     this.otherMessageTheme,
     this.ownMessageTheme,
     this.defaultChannelImage,
+    this.defaultUserImage,
   });
 
   /// Create a theme from a Material [Theme]
@@ -103,12 +107,14 @@ class StreamChatThemeData {
     MessageTheme ownMessageTheme,
     MessageTheme otherMessageTheme,
     Widget Function(BuildContext, Channel) defaultChannelImage,
+    Widget Function(BuildContext, User) defaultUserImage,
   }) =>
       StreamChatThemeData(
         primaryColor: primaryColor ?? this.primaryColor,
         secondaryColor: secondaryColor ?? this.secondaryColor,
         accentColor: accentColor ?? this.accentColor,
         defaultChannelImage: defaultChannelImage ?? this.defaultChannelImage,
+        defaultUserImage: defaultUserImage ?? this.defaultUserImage,
         channelPreviewTheme: channelPreviewTheme?.copyWith(
               title:
                   channelPreviewTheme.title ?? this.channelPreviewTheme.title,
@@ -178,6 +184,12 @@ class StreamChatThemeData {
       accentColor: accentColor,
       primaryColor: isDark ? Colors.black : Colors.white,
       defaultChannelImage: (context, channel) => SizedBox(),
+      defaultUserImage: (context, user) => Center(
+        child: Text(
+          user.name?.substring(0, 1) ?? '',
+          style: TextStyle(color: Colors.white),
+        ),
+      ),
       channelPreviewTheme: ChannelPreviewTheme(
         avatarTheme: AvatarTheme(
           borderRadius: BorderRadius.circular(20),
diff --git a/lib/src/user_avatar.dart b/lib/src/user_avatar.dart
index aaaa6a27..2377411e 100644
--- a/lib/src/user_avatar.dart
+++ b/lib/src/user_avatar.dart
@@ -43,7 +43,7 @@ class UserAvatar extends StatelessWidget {
                 },
                 fit: BoxFit.cover,
               )
-            : SizedBox(),
+            : StreamChatTheme.of(context).defaultUserImage(context, user),
       ),
     );
   }