implement mvvm with EazyReact

HarrisonXi · Aug 16, 2018 · f95ed50 · f95ed50
1 parent 4dbe481
commit f95ed50
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Showing 3 changed files with 26 additions and 26 deletions.
diff --git a/MvvmDemo/ViewController.m b/MvvmDemo/ViewController.m
@@ -22,12 +22,12 @@ - (void)viewDidLoad {
 
     self.viewModel = [ViewModel new];
     // bind input signals
-    RAC(self.viewModel, username) = self.usernameTextField.rac_textSignal;
-    RAC(self.viewModel, password) = self.passwordTextField.rac_textSignal;
+    EZR_PATH(self.viewModel, username) = EZR_PATH(self.usernameTextField, text);
+    EZR_PATH(self.viewModel, password) = EZR_PATH(self.passwordTextField, text);
     // bind output signals
-    RAC(self.usernameTextField, backgroundColor) = ConvertInputStateToColor(RACObserve(self.viewModel, usernameInputState));
-    RAC(self.passwordTextField, backgroundColor) = ConvertInputStateToColor(RACObserve(self.viewModel, passwordInputState));
-    RAC(self.loginButton, enabled) = RACObserve(self.viewModel, loginEnabled);
+    EZR_PATH(self.usernameTextField, backgroundColor) = ConvertInputStateToColor(EZR_PATH(self.viewModel, usernameInputState));
+    EZR_PATH(self.passwordTextField, backgroundColor) = ConvertInputStateToColor(EZR_PATH(self.viewModel, passwordInputState));
+    EZR_PATH(self.loginButton, enabled) = EZR_PATH(self.viewModel, loginEnabled);
 }
 
 @end
diff --git a/MvvmDemo/ViewModel.h b/MvvmDemo/ViewModel.h
@@ -8,19 +8,19 @@
 
 #import <Foundation/Foundation.h>
 #import <UIKit/UIKit.h>
-#import <ReactiveObjC/ReactiveObjC.h>
+#import <EasyReact/EasyReact.h>
 
 typedef enum : NSUInteger {
     InputStateEmpty,
     InputStateValid,
     InputStateInvalid
 } InputState;
 
-#define ConvertInputStateToColor(signal) [InputStateToColorConverter convert:signal]
+#define ConvertInputStateToColor(node) [InputStateToColorConverter convert:node]
 
 @interface InputStateToColorConverter : NSObject
 
-+ (RACSignal *)convert:(RACSignal *)signal;
++ (EZRMutableNode *)convert:(EZRNode *)node;
 
 @end
 

diff --git a/MvvmDemo/ViewModel.m b/MvvmDemo/ViewModel.m
@@ -14,9 +14,9 @@
 
 @implementation InputStateToColorConverter
 
-+ (RACSignal *)convert:(RACSignal *)signal
++ (EZRMutableNode *)convert:(EZRNode *)node
 {
-    return [signal map:^id(NSNumber *inputStateNumber) {
+    return [node map:^id _Nullable(NSNumber * _Nullable inputStateNumber) {
         InputState inputState = [inputStateNumber unsignedIntegerValue];
         switch (inputState) {
             case InputStateValid:
@@ -26,7 +26,7 @@ + (RACSignal *)convert:(RACSignal *)signal
             default:
                 return WhiteBgColor;
         }
-    }];
+    }].mutablify;
 }
 
 @end
@@ -44,7 +44,7 @@ @implementation ViewModel
 - (instancetype)init
 {
     if (self = [super init]) {
-        RAC(self, usernameInputState) = [RACObserve(self, username) map:^id(NSString *username) {
+        EZR_PATH(self, usernameInputState) = [EZR_PATH(self, username) map:^id _Nullable(NSString * _Nullable username) {
             if ([username length] >= 4 && [username length] <= 16) {
                 return @(InputStateValid);
             } else {
@@ -54,9 +54,9 @@ - (instancetype)init
                     return @(InputStateInvalid);
                 }
             }
-        }];
+        }].mutablify;
 
-        RAC(self, passwordInputState) = [RACObserve(self, password) map:^id(NSString *password) {
+        EZR_PATH(self, passwordInputState) = [EZR_PATH(self, password) map:^id _Nullable(NSString * _Nullable password) {
             if ([password length] >= 8 && [password length] <= 16) {
                 return @(InputStateValid);
             } else {
@@ -66,19 +66,19 @@ - (instancetype)init
                     return @(InputStateInvalid);
                 }
             }
-        }];
+        }].mutablify;
 
-        RAC(self, loginEnabled) = [RACSignal combineLatest:@[RACObserve(self, usernameInputState),
-                                                             RACObserve(self, passwordInputState)]
-                                                    reduce:^id(NSNumber *usernameInputStateValue,
-                                                               NSNumber *passwordInputStateValue){
-                                                        if ([usernameInputStateValue unsignedIntegerValue] == InputStateValid &&
-                                                            [passwordInputStateValue unsignedIntegerValue] == InputStateValid) {
-                                                            return @(YES);
-                                                        } else {
-                                                            return @(NO);
-                                                        }
-                                                    }];
+        EZR_PATH(self, loginEnabled) = [EZRCombine(EZR_PATH(self, usernameInputState),
+                                                   EZR_PATH(self, passwordInputState))
+                                        mapEach:^id _Nonnull(NSNumber * _Nonnull usernameInputStateValue,
+                                                             NSNumber * _Nonnull passwordInputStateValue) {
+                                            if ([usernameInputStateValue unsignedIntegerValue] == InputStateValid &&
+                                                [passwordInputStateValue unsignedIntegerValue] == InputStateValid) {
+                                                return @(YES);
+                                            } else {
+                                                return @(NO);
+                                            }
+                                        }].mutablify;
     }
     return self;
 }