refactoring

Author: CodeChamp-SS

lib/io/src/ui/delete_project_dialog.dart

@@ -22,24 +22,36 @@ class _DeleteProjectDialogState extends State<DeleteProjectDialog> {
   @override
   Widget build(BuildContext context) => AlertDialog(
         title: Text("Delete ${widget.name}"),
-        actions: [_discardButton, _deleteButton],
+        actions: const [
+          DialogElevatedButton(text: 'Cancel'),
+          DialogTextButton(text: 'Delete'),
+        ],
         content: const Text("Do you really want to delete your project?"),
       );
+}
+
+class DialogTextButton extends StatelessWidget {
+  final String text;
 
-  TextButton get _deleteButton {
-    return TextButton(
-      style:
-          ButtonStyle(foregroundColor: MaterialStateProperty.all(Colors.red)),
-      onPressed: () => Navigator.of(context).pop(true),
-      child: const Text("Delete"),
-    );
-  }
+  const DialogTextButton({Key? key, required this.text}) : super(key: key);
 
-  ElevatedButton get _discardButton => ElevatedButton(
+  @override
+  Widget build(BuildContext context) => TextButton(
+        style:
+            ButtonStyle(foregroundColor: MaterialStateProperty.all(Colors.red)),
+        onPressed: () => Navigator.of(context).pop(true),
+        child: Text(text),
+      );
+}
+
+class DialogElevatedButton extends StatelessWidget {
+  final String text;
+
+  const DialogElevatedButton({Key? key, required this.text}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) => ElevatedButton(
         onPressed: () => Navigator.of(context).pop(false),
-        child: const Text(
-          "Cancel",
-          style: TextStyle(color: Colors.white),
-        ),
+        child: Text(text, style: const TextStyle(color: Colors.white)),
       );
 }

lib/io/src/ui/discard_changes_dialog.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:paintroid/io/src/ui/delete_project_dialog.dart';
 
 /// Returns [true] if user chose to discard changes or [null] if user
 /// dismissed the dialog by tapping outside
@@ -19,27 +20,13 @@ class DiscardChangesDialog extends StatefulWidget {
 class _DiscardChangesDialogState extends State<DiscardChangesDialog> {
   @override
   Widget build(BuildContext context) {
-    return AlertDialog(
-      title: const Text("Discard changes"),
-      actions: [_discardButton, _saveButton],
-      content: const Text(
-          "You have not saved your last changes. They will be lost!"),
-    );
-  }
-
-  TextButton get _discardButton {
-    return TextButton(
-      style:
-          ButtonStyle(foregroundColor: MaterialStateProperty.all(Colors.red)),
-      onPressed: () => Navigator.of(context).pop(true),
-      child: const Text("Discard"),
-    );
-  }
-
-  ElevatedButton get _saveButton {
-    return ElevatedButton(
-      onPressed: () => Navigator.of(context).pop(false),
-      child: const Text("Save", style: TextStyle(color: Colors.white)),
+    return const AlertDialog(
+      title: Text("Discard changes"),
+      actions: [
+        DialogTextButton(text: 'Discard'),
+        DialogElevatedButton(text: 'Save'),
+      ],
+      content: Text("You have not saved your last changes. They will be lost!"),
     );
   }
 }

lib/ui/landing_page.dart

@@ -54,23 +54,6 @@ class _LandingPageState extends ConsumerState<LandingPage> {
     );
   }
 
-  Uint8List? _getProjectPreview(String? path) =>
-      imageService.getProjectPreview(path).when(
-            ok: (preview) => preview,
-            err: (failure) {
-              showToast(failure.message);
-              return null;
-            },
-          );
-
-  Widget _getPreviewForLatestModifiedProject(Project? project) {
-    Uint8List? img;
-    if (project != null) {
-      img = _getProjectPreview(project.imagePreviewPath);
-    }
-    return _ImagePreview(img: img, color: Colors.white54);
-  }
-
   void _clearCanvas() {
     ref.read(CanvasState.provider.notifier)
       ..clearBackgroundImageAndResetDimensions()
@@ -124,8 +107,10 @@ class _LandingPageState extends ConsumerState<LandingPage> {
                               _openProject(latestModifiedProject!, ioHandler);
                             }
                           },
-                          child: _getPreviewForLatestModifiedProject(
-                            latestModifiedProject,
+                          child: _ImagePreview(
+                            project: latestModifiedProject,
+                            imageService: imageService,
+                            color: Colors.white54,
                           ),
                         ),
                       ),
@@ -180,13 +165,11 @@ class _LandingPageState extends ConsumerState<LandingPage> {
                     itemBuilder: (context, position) {
                       if (position != 0) {
                         Project project = snapshot.data![position];
-                        Uint8List? img =
-                            _getProjectPreview(project.imagePreviewPath);
                         return Card(
-                          // margin: const EdgeInsets.all(5),
                           child: ListTile(
                             leading: _ImagePreview(
-                              img: img,
+                              project: project,
+                              imageService: imageService,
                               width: 80,
                               color: Colors.white,
                             ),
@@ -282,24 +265,43 @@ class _LandingPageFAB extends StatelessWidget {
 }
 
 class _ImagePreview extends StatelessWidget {
-  final Uint8List? img;
+  final Project? project;
   final double? width;
   final Color color;
+  final IImageService imageService;
 
-  const _ImagePreview({Key? key, this.img, this.width, required this.color})
-      : super(key: key);
+  const _ImagePreview({
+    Key? key,
+    this.width,
+    required this.color,
+    this.project,
+    required this.imageService,
+  }) : super(key: key);
 
   ImageProvider _getProjectPreviewImageProvider(Uint8List img) =>
       Image.memory(img, fit: BoxFit.cover).image;
 
+  Uint8List? _getProjectPreview(String? path) =>
+      imageService.getProjectPreview(path).when(
+            ok: (preview) => preview,
+            err: (failure) {
+              showToast(failure.message);
+              return null;
+            },
+          );
+
   @override
   Widget build(BuildContext context) {
+    Uint8List? img;
+    if (project != null) {
+      img = _getProjectPreview(project!.imagePreviewPath);
+    }
     var imgPreview = BoxDecoration(color: color);
     if (img != null) {
       imgPreview = BoxDecoration(
         color: color,
         image: DecorationImage(
-          image: _getProjectPreviewImageProvider(img!),
+          image: _getProjectPreviewImageProvider(img),
         ),
       );
     }