Refactoring v0.18.9

README.md

@@ -5,27 +5,27 @@ It contains **Dart** examples for all classic **GoF** design patterns.
 # Implementation checklist:
 - [ ] **Creation**
     - [ ] **Abstract Factory**
-    - [x] **Builder** - [[Color Text Format](https://github.com/RefactoringGuru/design-patterns-dart/tree/master/patterns/builder/color_text_format)]
+    - [x] **Builder** - [[Color Text Format](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/builder/color_text_format)]
     - [ ] **Factory Method**
-    - [x] **Prototype**] - [[Shapes](https://github.com/RefactoringGuru/design-patterns-dart/tree/master/patterns/prototype/shapes)] 
+    - [x] **Prototype**] - [[Shapes](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/prototype/shapes)] 
     - [ ] **Singleton**
 - [ ]  **Behavioral**
-    - [x] **Chain of Responsibility** - [[Server Middleware](https://github.com/RefactoringGuru/design-patterns-dart/tree/master/patterns/chain_of_responsibility/server_middleware)]
-    - [x] **Command** - [[Text Editor](https://github.com/RefactoringGuru/design-patterns-dart/tree/master/patterns/command/text_editor)] 
+    - [x] **Chain of Responsibility** - [[Server Middleware](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/chain_of_responsibility/server_middleware)]
+    - [x] **Command** - [[Text Editor](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/command/text_editor)] 
     - [ ] Interpreter
     - [ ] **Iterator**
     - [ ] **Mediator**
-    - [x] **Memento** - [[Conceptual](https://github.com/RefactoringGuru/design-patterns-dart/tree/master/patterns/memento/conceptual)] [[Memento Editor](https://github.com/RefactoringGuru/design-patterns-dart/tree/master/patterns/memento/memento_editor)] 
-    - [x] **Observer** - [[Open-Close Editor Events](https://github.com/RefactoringGuru/design-patterns-dart/tree/master/patterns/observer/open_close_editor_events)] [[AppObserver](https://github.com/RefactoringGuru/design-patterns-dart/tree/master/patterns/observer/app_observer)] [[Subscriber Flutter Widget](https://github.com/RefactoringGuru/design-patterns-dart/tree/master/patterns/observer/subscriber_flutter_widget)]
+    - [x] **Memento** - [[Conceptual](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/memento/conceptual)] [[Memento Editor](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/memento/memento_editor)] 
+    - [x] **Observer** - [[Open-Close Editor Events](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/observer/open_close_editor_events)] [[AppObserver](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/observer/app_observer)] [[Subscriber Flutter Widget](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/observer/subscriber_flutter_widget)]
     - [ ] **State**
     - [ ] **Template Method**
     - [ ] **Visitor**
     - [ ] **Strategy**
 - [ ] **Structural**
-    - [x] **Adapter** - [[Text Graphics](https://github.com/RefactoringGuru/design-patterns-dart/tree/master/patterns/adapter/text_graphics)] [[Square Round conflict](https://github.com/RefactoringGuru/design-patterns-dart/tree/master/patterns/adapter/square_round_conflict)] [[Flutter Adapter](https://github.com/RefactoringGuru/design-patterns-dart/tree/master/patterns/adapter/flutter_adapter)] 
-    - [x] **Bridge** - [[Remote Device Control](https://github.com/RefactoringGuru/design-patterns-dart/tree/master/patterns/bridge/devices_remote_control)] [[Clock](https://github.com/RefactoringGuru/design-patterns-dart/tree/master/patterns/bridge/clock)] 
-    - [x] **Composite** - [[Image Editor](https://github.com/RefactoringGuru/design-patterns-dart/tree/master/patterns/composite/image_editor)] [[Products and Boxes](https://github.com/RefactoringGuru/design-patterns-dart/tree/master/patterns/composite/products_and_boxes)] 
-    - [x] **Decorator** - [[Data Source Decoder](https://github.com/RefactoringGuru/design-patterns-dart/tree/master/patterns/decorator/data_source_decoder)]
+    - [x] **Adapter** - [[Text Graphics](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/adapter/text_graphics)] [[Square Round conflict](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/adapter/square_round_conflict)] [[Flutter Adapter](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/adapter/flutter_adapter)] 
+    - [x] **Bridge** - [[Remote Device Control](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/bridge/devices_remote_control)] [[Clock](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/bridge/clock)] 
+    - [x] **Composite** - [[Image Editor](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/composite/image_editor)] [[Products and Boxes](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/composite/products_and_boxes)] 
+    - [x] **Decorator** - [[Data Source Decoder](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/decorator/data_source_decoder)]
     - [ ] **Facade**
     - [ ] **Flyweight**
     - [ ] **Proxy**

patterns/adapter/flutter_adapter/README.md

@@ -9,8 +9,8 @@ This example shows how to adapt a non-reactive classic type application for Flut
 
 ### Dependency
 This complex example includes these implementations:
-- [[AppObserver](https://github.com/RefactoringGuru/design-patterns-dart/tree/master/patterns/observer/app_observer)]
-- [[SubscriberWidget](https://github.com/RefactoringGuru/design-patterns-dart/tree/master/patterns/observer/subscriber_flutter_widget)]
+- [[AppObserver](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/observer/app_observer)]
+- [[SubscriberWidget](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/observer/subscriber_flutter_widget)]
 
 ### Online demo:
 Click on the picture to see a [demo](https://refactoringguru.github.io/design-patterns-dart/#/adapter/flutter_adapter).

patterns/adapter/text_graphics/README.md

@@ -8,7 +8,7 @@ https://refactoring.guru/design-patterns/adapter
 Adding shapes from a third-party library.
 
 ### Class Diagram:
-![image](https://user-images.githubusercontent.com/8049534/146028651-1262b66d-b0ac-4fc9-9487-76a2d588f97e.png)
+![image](https://user-images.githubusercontent.com/8049534/165749605-5361d5e2-e4a1-41ed-9d27-1c4965fa30d2.png)
 
 ### Client code:
 ```dart

patterns/bridge/devices_remote_control/README.md

@@ -1,5 +1,5 @@
 # Bridge pattern
-This example rewrite from [java example](https://github.com/RefactoringGuru/design-patterns-java/tree/master/src/refactoring_guru/bridge/example)
+This example rewrite from [java example](https://github.com/RefactoringGuru/design-patterns-java/tree/main/src/refactoring_guru/bridge/example)
 But removed the ability to use null for devices. Instead, the EmptyDevice class is used.
 
 ### Remote device example

patterns/builder/color_text_format/README.md

@@ -8,15 +8,13 @@ https://refactoring.guru/design-patterns/builder
 Using different text formats. 
 
 ### Class diagram
-![image](https://user-images.githubusercontent.com/8049534/152780645-4eed27fc-a483-432e-99b0-4a77f2adbd5d.png)
+![image](https://user-images.githubusercontent.com/8049534/165747411-75d587d4-aa16-4a14-a16d-52f3fa461a11.png)
 
 ### Client code:
 ```dart
 main() {
   final reader = ColorTextReader(
-    text: 'I love looking at the blue sky, '
-        'eating red apples, '
-        'sitting on the green grass.',
+    text: 'I love looking at the blue sky, eating red apples and sitting on the green grass.',
   );
 
   final html = reader.convert(HtmlConverter());

patterns/chain_of_responsibility/server_middleware/README.md

@@ -8,7 +8,7 @@ Chain of Responsibility is a behavioral design pattern that lets you pass reques
 https://refactoring.guru/design-patterns/chain-of-responsibility?#problem
 
 ### Origin source code:
-This example rewrite from [java example](https://github.com/RefactoringGuru/design-patterns-java/tree/master/src/refactoring_guru/chain_of_responsibility/example)
+This example rewrite from [java example](https://github.com/RefactoringGuru/design-patterns-java/tree/main/src/refactoring_guru/chain_of_responsibility/example)
 
 ### Diagram:
 ![image](https://user-images.githubusercontent.com/8049534/149488654-7ff5f659-4086-4d1a-ae44-326c71fb880a.png)

patterns/command/text_editor/README.md

@@ -11,7 +11,7 @@ possible to revert an operation if needed.
 More detailed explanation on [RefactoringGuru](https://refactoring.guru/design-patterns/command?#pseudocode).
 
 ## Origin source code:
-This example rewrite from [java example](https://github.com/RefactoringGuru/design-patterns-java/tree/master/src/refactoring_guru/command/example).
+This example rewrite from [java example](https://github.com/RefactoringGuru/design-patterns-java/tree/main/src/refactoring_guru/command/example).
 But slightly changed, see the class diagram.
 
 ## Diagram:

patterns/composite/image_editor/README.md

@@ -5,7 +5,7 @@ Composite is a structural design pattern that lets you compose objects into tree
 https://refactoring.guru/design-patterns/composite?#pseudocode
 
 ## Origin source code:
-This example rewrite from [java example](https://github.com/RefactoringGuru/design-patterns-java/tree/master/src/refactoring_guru/composite/example)
+This example rewrite from [java example](https://github.com/RefactoringGuru/design-patterns-java/tree/main/src/refactoring_guru/composite/example)
 
 ### Diagram:
 ![image](https://user-images.githubusercontent.com/8049534/149174388-25ca21b1-d762-40b5-a853-528abe18b66c.png)

patterns/memento/memento_editor/README.md

@@ -5,18 +5,17 @@ object without revealing the details of its implementation.
 Tutorial: [here](https://refactoring.guru/design-patterns/memento).
 
 ### Online demo:
-Click on the picture to see a [demo](https://RefactoringGuru.github.io/design-patterns-dart/#/memento/flutter_memento_editor).
+Click on the picture to see the [demo](https://RefactoringGuru.github.io/design-patterns-dart/#/memento/flutter_memento_editor).
 
 [![image](https://user-images.githubusercontent.com/8049534/165401175-88bc4593-4624-45b4-8c03-6f1390ed771a.png)](https://refactoringguru.github.io/design-patterns-dart/#/memento/flutter_memento_editor)
 
-
 ### Dependency Patterns
 This complex example includes these implementations:
-- [[AppObserver](https://github.com/RefactoringGuru/design-patterns-dart/tree/master/patterns/observer/app_observer)]
-- [[SubscriberWidget](https://github.com/RefactoringGuru/design-patterns-dart/tree/master/patterns/observer/subscriber_flutter_widget)]
+- [[AppObserver](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/observer/app_observer)]
+- [[SubscriberWidget](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/observer/subscriber_flutter_widget)]
 
 ### Diagram:
-![image](https://user-images.githubusercontent.com/8049534/165399085-06835617-8ef1-4e2f-930f-03d730433afb.png)
+![image](https://user-images.githubusercontent.com/8049534/165758516-1de543f5-666d-4e07-958d-2d8fceb73af9.png)
 
 ### Client code:
 ```dart

patterns/memento/memento_editor/editor/manipulator.dart

@@ -1,32 +1,18 @@
-import '../../../adapter/flutter_adapter/classic_app/classic_app.dart';
 import '../shapes/shapes.dart';
 
-mixin Manipulator implements ClassicApp, Shapes {
+mixin Manipulator implements Shapes {
   var _isMouseDown = false;
 
   @override
   void onMouseDown(double x, double y) {
     _isMouseDown = true;
-    final currSelection = activeShape;
-
     select(x, y);
-
-    if (currSelection == activeShape) {
-      return;
-    }
-
-    if (activeShape == null) {
-      unSelect();
-    }
-
-    repaint();
   }
 
   @override
   void onMouseMove(double x, double y) {
     if (_isMouseDown) {
       activeShape?.dragTo(x, y);
-      repaint();
     }
   }
 

patterns/memento/memento_editor/memento_pattern/originator.dart

@@ -2,12 +2,11 @@ import 'dart:convert';
 import 'dart:typed_data';
 import 'dart:ui';
 
-import '../../../adapter/flutter_adapter/classic_app/classic_app.dart';
 import '../shapes/shapes.dart';
 import '../shapes/shape.dart';
 import 'snapshot.dart';
 
-mixin Originator implements Shapes, ClassicApp {
+mixin Originator implements Shapes {
   Snapshot backup() {
     final data = _allocateBuffer();
     _writeShapes(data);

patterns/memento/memento_editor/shapes/active_shape.dart

@@ -4,7 +4,9 @@ class ActiveShape {
   final Shape shape;
   final void Function() repaint;
 
-  ActiveShape(this.shape, this._xStart, this._yStart, this.repaint);
+  ActiveShape(this.shape, this._xStart, this._yStart, this.repaint) {
+    repaint();
+  }
 
   void changeSize(double delta) {
     final currentSize = shape.size;
@@ -30,7 +32,6 @@ class ActiveShape {
   void dragTo(double x, double y) {
     shape._x = x + _xStart;
     shape._y = y + _yStart;
-
     repaint();
   }
 
@@ -53,4 +54,8 @@ class ActiveShape {
         ..color = Color(0xff26e6ff),
     );
   }
+
+  void dispose() {
+    repaint();
+  }
 }

patterns/memento/memento_editor/shapes/shapes.dart

@@ -15,7 +15,7 @@ mixin Shapes implements ClassicApp {
     if (shape != null) {
       _activeShape = ActiveShape(shape, shape.x - x, shape.y - y, repaint);
     } else {
-      _activeShape = null;
+      unSelect();
     }
   }
 
@@ -30,6 +30,11 @@ mixin Shapes implements ClassicApp {
   }
 
   void unSelect() {
+    if (_activeShape == null) {
+      return;
+    }
+
+    _activeShape?.dispose();
     _activeShape = null;
   }
 

patterns/memento/memento_editor/widgets/panels/shape_properties_widget.dart

@@ -53,7 +53,6 @@ class ShapePropertiesWidget extends StatelessWidget {
                   colors: colors,
                   onColorSelect: (newColor) {
                     app.editor.activeShape?.changeColor(newColor);
-
                   },
                 ),
               ],

patterns/observer/app_observer/README.md

@@ -5,8 +5,10 @@ multiple objects about any events that happen to the object they’re observing.
 Tutorial: [here](https://refactoring.guru/design-patterns/observer).
 
 ## AppObserver example 
-This example was created to be used in a more complex example.
-A complex example will be implemented later.
+This example was created to be used in a more complex examples:
+- [[SubscriberWidget](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/observer/subscriber_flutter_widget)]
+- [[FlutterAdapter](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/adapter/flutter_adapter)]
+- [[MementoEditor](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/memento/memento_editor)]
 
 ### Diagram:
 ![image](https://user-images.githubusercontent.com/8049534/152783537-0c39c119-2e5b-44fb-9be1-a88840c7f7a1.png)

patterns/observer/app_observer/observer/app_observer.dart

@@ -21,9 +21,9 @@ class AppObserver {
   }
 
   void unsubscribe<T extends Event>(EventFunction<T> func) {
-    final isDelete = _subscribers[T.hashCode]?.remove(func) ?? false;
+    final isDeleted = _subscribers[T.hashCode]?.remove(func) ?? false;
 
-    if (isDelete) {
+    if (isDeleted) {
       return;
     }
 

patterns/observer/open_close_editor_events/README.md

@@ -9,7 +9,7 @@ changes in its state.
 More detailed explanation on [RefactoringGuru](https://refactoring.guru/design-patterns/observer?#pseudocode).
 
 ### Origin source code:
-This example rewrite from [java example](https://github.com/RefactoringGuru/design-patterns-java/tree/master/src/refactoring_guru/observer/example).
+This example rewrite from [java example](https://github.com/RefactoringGuru/design-patterns-java/tree/main/src/refactoring_guru/observer/example).
 
 ### Diagram:
 ![image](https://user-images.githubusercontent.com/8049534/150955865-7fbb29f3-ed48-4317-a356-cbb9cc79ed11.png)

patterns/observer/subscriber_flutter_widget/README.md

@@ -7,7 +7,7 @@ Tutorial: [here](https://refactoring.guru/design-patterns/observer).
 ## Subscriber flutter widget example 
 This is a complex example of an Observer pattern, connected to a Flutter application. The example includes,
 the previously implemented **AppObserver** example pattern, 
-which you can see [here](https://github.com/RefactoringGuru/design-patterns-dart/tree/master/patterns/observer/app_observer).
+which you can see [here](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/observer/app_observer).
 
 ### Online demo:
 Click on the picture to see a [demo](https://RefactoringGuru.github.io/design-patterns-dart/#/observer/subscriber_flutter_widget).

pubspec.yaml

@@ -1,6 +1,6 @@
 name: design_patterns_dart
 description: Dart examples for all classic GoF design patterns.
-version: 0.18.0
+version: 0.18.9
 homepage: https://refactoring.guru/design-patterns
 repository: https://github.com/RefactoringGuru/design-patterns-dart
 issue_tracker: https://github.com/RefactoringGuru/design-patterns-dart/issue