From 3c0bed060b9fcd9d10ef905cf1b8e63040f7c953 Mon Sep 17 00:00:00 2001
From: Koji Wakamiya <koji.wakamiya@gmail.com>
Date: Wed, 31 Jul 2024 15:21:10 +0900
Subject: [PATCH] feat: Add on memory resize mode

---
 lib/src/taro.dart         | 15 +++++++++++++--
 lib/src/taro_resizer.dart |  2 +-
 lib/src/taro_type.dart    | 17 ++++++++++-------
 3 files changed, 24 insertions(+), 10 deletions(-)

diff --git a/lib/src/taro.dart b/lib/src/taro.dart
index da9e8fd..6f4b761 100644
--- a/lib/src/taro.dart
+++ b/lib/src/taro.dart
@@ -1,5 +1,6 @@
 import 'dart:typed_data';
 
+import 'package:flutter/painting.dart';
 import 'package:taro/src/taro_image.dart';
 import 'package:taro/src/taro_loader.dart';
 import 'package:taro/src/taro_loader_network.dart';
@@ -78,20 +79,30 @@ class Taro {
   /// If [checkMaxAgeIfExist] is true, the method checks the max age of the data.
   /// [ifThrowMaxAgeHeaderError] is used to throw an exception if the max age header is invalid.
   /// The [resizeOption] parameter is used to resize the image. If it is not provided, the default resize option is used.
-  TaroImage loadImageProvider(
+  ImageProvider loadImageProvider(
     String url, {
     double scale = 1.0,
     Map<String, String> headers = const {},
     TaroResizeOption? resizeOption,
     TaroHeaderOption? headerOption,
   }) {
-    return TaroImage(
+    final image = TaroImage(
       url,
       scale: scale,
       resizeOption: resizeOption ?? _resizeOption,
       headers: headers,
       headerOption: headerOption ?? _headerOption,
     );
+
+    if (resizeOption?.mode == TaroResizeMode.memory) {
+      return ResizeImage.resizeIfNeeded(
+        resizeOption?.maxWidth,
+        resizeOption?.maxHeight,
+        image,
+      );
+    }
+
+    return image;
   }
 
   /// Loads the data from the provided URL and returns it as a byte array.
diff --git a/lib/src/taro_resizer.dart b/lib/src/taro_resizer.dart
index 48ce96b..19c1dc3 100644
--- a/lib/src/taro_resizer.dart
+++ b/lib/src/taro_resizer.dart
@@ -16,7 +16,7 @@ class TaroResizer {
     required String contentType,
     required TaroResizeOption resizeOption,
   }) async {
-    if (resizeOption.mode == TaroResizeMode.skip) {
+    if (resizeOption.mode case TaroResizeMode.skip || TaroResizeMode.memory) {
       // do nothing
       return (
         bytes: bytes,
diff --git a/lib/src/taro_type.dart b/lib/src/taro_type.dart
index c92cb39..b8aee65 100644
--- a/lib/src/taro_type.dart
+++ b/lib/src/taro_type.dart
@@ -16,25 +16,28 @@ enum TaroResizeMode {
   /// The image is not resized.
   skip,
 
-  /// The image is resized to the original contentType.
+  /// The image is resized and saved original image.
+  memory,
+
+  /// The image is resized to the original contentType and saved cache.
   original,
 
-  /// The image is resized to a gif.
+  /// The image is resized to a gif and saved cache.
   gif,
 
-  /// The image is resized to a jpg.
+  /// The image is resized to a jpg and saved cache.
   jpeg,
 
-  /// The image is resized to a png.
+  /// The image is resized to a png and saved cache.
   png,
 
-  /// The image is resized to a bmp.
+  /// The image is resized to a bmp and saved cache.
   bmp,
 
-  /// The image is resized to a ico.
+  /// The image is resized to a ico and saved cache.
   ico,
 
-  /// The image is resized to a tiff.
+  /// The image is resized to a tiff and saved cache.
   tiff,
 }