feat: Added documentation for MiraiNavigator

docs/docs/basics/actions.md

@@ -11,14 +11,14 @@ sidebar_position: 2
 
 ## Properties
 
-| Properties | Description |
-| --- | --- |
-| actionType | Defines weather the action will be Navigation or Network Call |
-| request | Network request to be called by MiraiAction |
-| widgetJson | widgetJson is used to navigate from the local json |
-| assetPath | Define the assetPath for your json |
-| navigationType | Defines the navigationType, like screen Navigation, dialog or bottomSheet. |
-| navigationStyle | Defines the Navigation Style, like push, pop, etc. |
+| Properties      | Description                                                                |
+| --------------- | -------------------------------------------------------------------------- |
+| actionType      | Defines weather the action will be Navigation or Network Call              |
+| request         | Network request to be called by MiraiAction                                |
+| widgetJson      | widgetJson is used to navigate from the local json                         |
+| assetPath       | Define the assetPath for your json                                         |
+| navigationType  | Defines the navigationType, like screen Navigation, dialog or bottomSheet. |
+| navigationStyle | Defines the Navigation Style, like push, pop, etc.                         |
 
 ## Example
 

docs/docs/basics/mirai-navigattion.md

@@ -0,0 +1,198 @@
+---
+sidebar_position: 3
+---
+
+# Mirai Navigation
+
+Mirai uses flutter `Navigator` widget that manages a set of child widgets with a stack discipline for navigating among different screens or widgets.
+
+## Flutter Navigator
+
+The Navigator widget displays screens as a stack using the correct transition animations for the target platform. To navigate to a new screen, access the Navigator through the route’s BuildContext and call imperative methods such as push() or pop():
+
+```
+onPressed: () {
+  Navigator.of(context).push(
+    MaterialPageRoute(
+      builder: (context) => const SongScreen(song: song),
+    ),
+  );
+},
+child: Text(song.name),
+```
+
+## Reference
+
+`MiraiNavigator` is a singelton dart class with public methods `navigate` and `navigateBack`, both of these methods navigate back and forth among screens or widgets using the flutter [Navigator](https://api.flutter.dev/flutter/widgets/Navigator-class.html) class using the parent's build context.
+
+
+### Navigation Types
+
+`NavigationType` enum defines the following types of navigation in Mirai.
+
+- screen 
+    This is a type of navigation where widget is presented in the form of a new screen.
+- dialog 
+    This is a type of navigation where widget is presented in the form of an alert or a dialog using the `showDialog` method of flutter material library.
+- bottomSheet 
+    This is a type of navigation where widget is presented in the form of a bottom sheet using the `showModalBottomSheet` method of flutter material library.
+
+
+### Navigation Styles 
+
+`NavigationStyle` enum defines the following styles of navigation in Mirai.
+
+- push 
+    In this style of navigation `Navigator` widget adds the new screen onto the top of the stack.
+- pop 
+    In this style of navigation `Navigator` widget removes the existing screen from the top of the stack.
+- pushReplacement 
+    In this style of navigation `Navigator` widget adds the new screen onto the top of the stack and then dispose the previous route once the new route has finished the animation.
+- pushAndRemoveAll
+    In this style of navigation `Navigator` widget adds the new screen onto the top of the stack and then remove all the previous routes until the predicate returns true.
+- popAll
+     In this style of navigation `Navigator` widget removes every existing screen from the top of the stack repeatedly until the predicate returns true.
+
+
+## Usage 
+
+### In Json models 
+
+In widget Json we can define the navigation related values in the the [MiraiAction]((/docs/basics/actions#model)) model for any callback of the wiget like onPressed of a button. In the following json example navigation is performed after `onTap` of a `MiraiListTile`.
+
+```json
+ "onTap": {
+    "actionType": "navigate",
+    "navigationStyle": "push",
+    "navigationType": "screen",
+    "widgetJson": {
+        "type": "exampleScreen",
+        "assetPath": "assets/json/app_bar_example.json"
+    }
+}
+```
+
+Similary we can show a dialog by simply changing the type of navigation.
+
+```json
+ "onPressed": {
+  "actionType": "navigate",
+  "navigationStyle": "push",
+  "navigationType": "dialog",
+  "widgetJson": {
+      "type": "alertDialog",
+      "content": {
+          "type": "padding",
+          "padding": {
+              "top": 0,
+              "left": 12,
+              "right": 12,
+              "bottom": 8
+          },
+          "child": {
+              "type": "text",
+              "data": "Discard draft?",
+              "align": "center",
+              "style": {
+                  "fontSize": 14
+              }
+          }
+      },
+      "actions": [
+          {
+              "type": "textButton",
+              "child": {
+                  "type": "text",
+                  "data": "CANCEL"
+              },
+              "onPressed": {
+                  "actionType": "navigate",
+                  "navigationType": "screen",
+                  "navigationStyle": "pop"
+              }
+          },
+          {
+              "type": "sizedBox",
+              "width": 8
+          },
+          {
+              "type": "textButton",
+              "child": {
+                  "type": "text",
+                  "data": "DISCARD"
+              },
+              "onPressed": {
+                  "actionType": "navigate",
+                  "navigationType": "screen",
+                  "navigationStyle": "pop"
+              }
+          },
+          {
+              "type": "sizedBox",
+              "width": 12
+          }
+      ]
+  }
+}
+```
+
+With `MiraiNavigator` it has become very simple to change the style or type of any route in your app with change at single point of control.
+
+```json
+// will pop back
+ "onTap": {
+    "actionType": "navigate",
+    "navigationStyle": "pop"
+}
+```
+
+```json
+// will show as bottom sheet
+"onTap": {
+  "actionType": "navigate",
+  "navigationStyle": "push",
+  "navigationType": "bottomSheet",
+  "widgetJson": {
+    "type": "scaffold",
+    "appBar": { ... },
+    "body": { ... },
+    "floatingActionButton": { ... },
+    "bottomNavigationBar": { ... }
+  }
+}
+```
+
+
+### In Mirai Widget 
+
+In `Mirai` we can perform navigtion based on an action performed using `MiraiAction`. Lets see how it is done in `MiraiActionModel`.
+
+```dart
+/// navigate type of action is going to handle navigation in Mirai
+enum ActionType { navigate, request, none }
+
+@freezed
+class MiraiAction with _$MiraiAction {
+  factory MiraiAction({
+    ...
+    NavigationType? navigationType, // defines the tyoe of navigation
+    NavigationStyle? navigationStyle, // defines the style of navigation
+    ...
+  }) = _MiraiAction;
+
+  factory MiraiAction.fromJson(Map<String, dynamic> json) =>
+      _$MiraiActionFromJson(json);
+}
+```
+
+In [MiraiActionParser](https://github.com/Securrency-OSS/mirai/blob/f3f1856f2548a44fd1adb0ad3d31f3d77ecf92a5/packages/mirai/lib/src/action/mirai_action_parser.dart#L30) `MiraiNavigator` is used to navigate like this.
+
+
+```dart
+return MiraiNavigator.navigate(
+  context: context,
+  navigationType: this?.navigationType ?? NavigationType.screen,
+  navigationStyle: this?.navigationStyle ?? NavigationStyle.push,
+  widget: widget,
+);
+```