fix image provider builder (#446)

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 - **BREAKING CHANGE**: `nameBuilder` now passes the whole user class, instead of just an id. Thanks @vintage for the PR!
 - Add typing indicator. See `typingIndicatorOptions`. Thanks @gtalha07 for the PR! Huge one!
+- Add `imageProviderBuilder`. Thanks @marinkobabic for the PR!
 - Add `autocorrect` and `enableSuggestions` to the `InputOptions`. By default, both values will be true. Thanks @g0dzillaa for the PR!
 - Add `keyboardType` to the `InputOptions`. Thanks @Gramatton for the PR!
 - Add Swedish localization. Thanks @OlleEkberg for the PR!

lib/src/widgets/chat.dart

@@ -179,20 +179,20 @@ class Chat extends StatefulWidget {
   /// Headers passed to all network images used in the chat.
   final Map<String, String>? imageHeaders;
 
-  /// Option to have a custom image provider. This is helpful when user wants to use some caching.
-  /// or wants to handle image loading manually. Usage of cached_network_image is also possible
-  /// but when it comes to caching, then consumer want's to decide this specific per message
-  /// Also using this provider consumer can decide based on url to send specific headers or not
+  /// See [Message.imageMessageBuilder].
+  final Widget Function(types.ImageMessage, {required int messageWidth})?
+      imageMessageBuilder;
+
+  /// This feature allows you to use a custom image provider.
+  /// This is useful if you want to manage image loading yourself, or if you need to cache images.
+  /// You can also use the `cached_network_image` feature, but when it comes to caching, you might want to decide on a per-message basis.
+  /// Plus, by using this provider, you can choose whether or not to send specific headers based on the URL.
   final ImageProvider Function({
     required String uri,
     required Map<String, String>? imageHeaders,
     required Conditional conditional,
   })? imageProviderBuilder;
 
-  /// See [Message.imageMessageBuilder].
-  final Widget Function(types.ImageMessage, {required int messageWidth})?
-      imageMessageBuilder;
-
   /// See [Input.options].
   final InputOptions inputOptions;
 
@@ -449,6 +449,7 @@ class ChatState extends State<Chat> {
           hideBackgroundOnEmojiMessages: widget.hideBackgroundOnEmojiMessages,
           imageHeaders: widget.imageHeaders,
           imageMessageBuilder: widget.imageMessageBuilder,
+          imageProviderBuilder: widget.imageProviderBuilder,
           message: message,
           messageWidth: messageWidth,
           nameBuilder: widget.nameBuilder,

lib/src/widgets/message/message.dart

@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_chat_types/flutter_chat_types.dart' as types;
 import 'package:visibility_detector/visibility_detector.dart';
 
+import '../../conditional/conditional.dart';
 import '../../models/bubble_rtl_alignment.dart';
 import '../../models/emoji_enlargement_behavior.dart';
 import '../../util.dart';
@@ -31,6 +32,7 @@ class Message extends StatelessWidget {
     required this.hideBackgroundOnEmojiMessages,
     this.imageHeaders,
     this.imageMessageBuilder,
+    this.imageProviderBuilder,
     required this.message,
     required this.messageWidth,
     this.nameBuilder,
@@ -104,6 +106,13 @@ class Message extends StatelessWidget {
   final Widget Function(types.ImageMessage, {required int messageWidth})?
       imageMessageBuilder;
 
+  /// See [Chat.imageProviderBuilder].
+  final ImageProvider Function({
+    required String uri,
+    required Map<String, String>? imageHeaders,
+    required Conditional conditional,
+  })? imageProviderBuilder;
+
   /// Any message type.
   final types.Message message;
 
@@ -235,6 +244,7 @@ class Message extends StatelessWidget {
             ? imageMessageBuilder!(imageMessage, messageWidth: messageWidth)
             : ImageMessage(
                 imageHeaders: imageHeaders,
+                imageProviderBuilder: imageProviderBuilder,
                 message: imageMessage,
                 messageWidth: messageWidth,
               );