Add decomposition to lec4

lec4/lib/view/home_page/card.dart

@@ -1,8 +1,13 @@
-part of 'home_page.dart';
+import 'package:flutter/material.dart';
+import 'package:test_app/domain/card.dart';
+
+part 'card_image.dart';
+part 'card_like.dart';
+part 'card_text.dart';
 
 typedef OnLikeCallback = void Function(String title, bool isLiked)?;
 
-class _Card extends StatefulWidget {
+class HomeCard extends StatelessWidget {
   final String text;
   final String descriptionText;
   final IconData icon;
@@ -10,21 +15,22 @@ class _Card extends StatefulWidget {
   final OnLikeCallback onLike;
   final VoidCallback? onTap;
 
-  const _Card(
+  const HomeCard(
     this.text, {
     this.icon = Icons.ac_unit_outlined,
     required this.descriptionText,
     this.imageUrl,
     this.onLike,
     this.onTap,
+    super.key,
   });
 
-  factory _Card.fromData(
+  factory HomeCard.fromData(
     CardData data, {
     OnLikeCallback? onLike,
     VoidCallback? onTap,
   }) =>
-      _Card(
+      HomeCard(
         data.text,
         descriptionText: data.descriptionText,
         icon: data.icon,
@@ -33,17 +39,10 @@ class _Card extends StatefulWidget {
         onTap: onTap,
       );
 
-  @override
-  State<_Card> createState() => _CardState();
-}
-
-class _CardState extends State<_Card> {
-  bool _isLiked = false;
-
   @override
   Widget build(BuildContext context) {
     return GestureDetector(
-      onTap: widget.onTap,
+      onTap: onTap,
       child: Container(
         margin: const EdgeInsets.only(top: 8, bottom: 8),
         constraints: const BoxConstraints(minHeight: 140),
@@ -63,94 +62,14 @@ class _CardState extends State<_Card> {
           child: Row(
             crossAxisAlignment: CrossAxisAlignment.start,
             children: [
-              ClipRRect(
+              _CardImage(imageUrl ?? ''),
-                borderRadius: const BorderRadius.only(
+              _CardText(
-                  bottomLeft: Radius.circular(20),
+                text,
-                  topLeft: Radius.circular(20),
+                descriptionText: descriptionText,
-                ),
-                child: SizedBox(
-                  height: double.infinity,
-                  width: 115,
-                  child: Stack(
-                    children: [
-                      Positioned.fill(
-                        child: Image.network(
-                          widget.imageUrl ?? '',
-                          fit: BoxFit.cover,
-                          errorBuilder: (_, __, ___) => const Placeholder(),
-                        ),
-                      ),
-                      Align(
-                        alignment: Alignment.bottomLeft,
-                        child: Container(
-                          decoration: const BoxDecoration(
-                            color: Colors.orangeAccent,
-                            borderRadius: BorderRadius.only(
-                              topRight: Radius.circular(20),
-                            ),
-                          ),
-                          padding: const EdgeInsets.fromLTRB(8, 2, 8, 2),
-                          child: Text(
-                            'скидка 20%',
-                            style: Theme.of(context)
-                                .textTheme
-                                .bodyMedium
-                                ?.copyWith(color: Colors.black),
-                          ),
-                        ),
-                      )
-                    ],
-                  ),
-                ),
               ),
-              Expanded(
+              _CardLike(
-                child: Padding(
+                onLike,
-                  padding: const EdgeInsets.only(left: 8),
+                text: text,
-                  child: Column(
-                    crossAxisAlignment: CrossAxisAlignment.start,
-                    children: [
-                      Text(
-                        widget.text,
-                        style: Theme.of(context).textTheme.headlineLarge,
-                      ),
-                      Text(
-                        widget.descriptionText,
-                        style: Theme.of(context).textTheme.bodyLarge,
-                      )
-                    ],
-                  ),
-                ),
-              ),
-              Align(
-                alignment: Alignment.bottomRight,
-                child: Padding(
-                  padding: const EdgeInsets.only(
-                    left: 8,
-                    right: 16,
-                    bottom: 16,
-                  ),
-                  child: GestureDetector(
-                    onTap: () {
-                      setState(() {
-                        _isLiked = !_isLiked;
-                      });
-                      widget.onLike?.call(widget.text, _isLiked);
-                    },
-                    child: AnimatedSwitcher(
-                      duration: const Duration(milliseconds: 200),
-                      child: _isLiked
-                          ? const Icon(
-                              Icons.favorite,
-                              color: Colors.redAccent,
-                              key: ValueKey(0),
-                            )
-                          : const Icon(
-                              Icons.favorite_border,
-                              key: ValueKey(1),
-                            ),
-                    ),
-                  ),
-                ),
               )
             ],
           ),

lec4/lib/view/home_page/card_image.dart

@@ -0,0 +1,51 @@
+part of 'card.dart';
+
+class _CardImage extends StatelessWidget {
+  final String imageUrl;
+
+  const _CardImage(this.imageUrl);
+
+  @override
+  Widget build(BuildContext context) {
+    return ClipRRect(
+      borderRadius: const BorderRadius.only(
+        bottomLeft: Radius.circular(20),
+        topLeft: Radius.circular(20),
+      ),
+      child: SizedBox(
+        height: double.infinity,
+        width: 115,
+        child: Stack(
+          children: [
+            Positioned.fill(
+              child: Image.network(
+                imageUrl,
+                fit: BoxFit.cover,
+                errorBuilder: (_, __, ___) => const Placeholder(),
+              ),
+            ),
+            Align(
+              alignment: Alignment.bottomLeft,
+              child: Container(
+                decoration: const BoxDecoration(
+                  color: Colors.orangeAccent,
+                  borderRadius: BorderRadius.only(
+                    topRight: Radius.circular(20),
+                  ),
+                ),
+                padding: const EdgeInsets.fromLTRB(8, 2, 8, 2),
+                child: Text(
+                  'скидка 20%',
+                  style: Theme.of(context)
+                      .textTheme
+                      .bodyMedium
+                      ?.copyWith(color: Colors.black),
+                ),
+              ),
+            )
+          ],
+        ),
+      ),
+    );
+  }
+}

lec4/lib/view/home_page/card_like.dart

@@ -0,0 +1,50 @@
+part of 'card.dart';
+
+class _CardLike extends StatefulWidget {
+  final OnLikeCallback onLike;
+  final String text;
+
+  const _CardLike(this.onLike, {required this.text});
+
+  @override
+  State<_CardLike> createState() => _CardLikeState();
+}
+
+class _CardLikeState extends State<_CardLike> {
+  bool _isLiked = false;
+
+  @override
+  Widget build(BuildContext context) {
+    return Align(
+      alignment: Alignment.bottomRight,
+      child: Padding(
+        padding: const EdgeInsets.only(
+          left: 8,
+          right: 16,
+          bottom: 16,
+        ),
+        child: GestureDetector(
+          onTap: () {
+            setState(() {
+              _isLiked = !_isLiked;
+            });
+            widget.onLike?.call(widget.text, _isLiked);
+          },
+          child: AnimatedSwitcher(
+            duration: const Duration(milliseconds: 200),
+            child: _isLiked
+                ? const Icon(
+                    Icons.favorite,
+                    color: Colors.redAccent,
+                    key: ValueKey(0),
+                  )
+                : const Icon(
+                    Icons.favorite_border,
+                    key: ValueKey(1),
+                  ),
+          ),
+        ),
+      ),
+    );
+  }
+}

lec4/lib/view/home_page/card_text.dart

@@ -0,0 +1,33 @@
+part of 'card.dart';
+
+class _CardText extends StatelessWidget {
+  final String text;
+  final String descriptionText;
+
+  const _CardText(
+    this.text, {
+    required this.descriptionText,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Expanded(
+      child: Padding(
+        padding: const EdgeInsets.only(left: 8),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            Text(
+              text,
+              style: Theme.of(context).textTheme.headlineLarge,
+            ),
+            Text(
+              descriptionText,
+              style: Theme.of(context).textTheme.bodyLarge,
+            )
+          ],
+        ),
+      ),
+    );
+  }
+}

lec4/lib/view/home_page/home_page.dart

@@ -1,8 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:test_app/domain/card.dart';
 import 'package:test_app/view/details_page/details_page.dart';
-
+import 'package:test_app/view/home_page/card.dart';
-part 'card.dart';
 
 class MyHomePage extends StatefulWidget {
   const MyHomePage({super.key, required this.title});
@@ -62,7 +61,7 @@ class Body extends StatelessWidget {
         child: Column(
           mainAxisAlignment: MainAxisAlignment.center,
           children: data
-              .map((data) => _Card.fromData(
+              .map((data) => HomeCard.fromData(
                     data,
                     onLike: (String title, bool isLiked) =>
                         _showSnackBar(context, title, isLiked),