Exported methods to react native

Author: maciej-rosiek

AQWebView/AQWebView.m

@@ -84,12 +84,12 @@ - (void)goForward
 
 - (BOOL)canGoBack
 {
-    return [_webView canGoBack];
+    return _webView.canGoBack;
 }
 
 - (BOOL)canGoForward
 {
-    return [_webView canGoForward];
+    return _webView.canGoForward;
 }
 
 - (void)setSource:(NSDictionary *)source

AQWebView/AQWebViewManager.m

@@ -38,4 +38,46 @@ - (UIView *) view
   }];
 }
 
+RCT_EXPORT_METHOD(navigationState:(nonnull NSNumber *)reactTag callback:(RCTResponseSenderBlock)callback)
+{
+    [self.bridge.uiManager addUIBlock:^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, AQWebView *> *viewRegistry) {
+        AQWebView *view = viewRegistry[reactTag];
+        if (![view isKindOfClass:[AQWebView class]]) {
+            RCTLogError(@"Invalid view returned from registry, expecting RCTWebView, got: %@", view);
+        }
+        else {
+            BOOL canGoForward = [view canGoForward];
+            BOOL canGoBack = [view canGoBack];
+            NSDictionary *data = @{@"canGoForward": @(canGoForward),
+                                   @"canGoBack": @(canGoBack)};
+            callback(@[[NSNull null], data]);
+        }
+    }];
+}
+
+RCT_EXPORT_METHOD(goBack:(nonnull NSNumber *)reactTag)
+{
+    [self.bridge.uiManager addUIBlock:^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, AQWebView *> *viewRegistry) {
+        AQWebView *view = viewRegistry[reactTag];
+        if (![view isKindOfClass:[AQWebView class]]) {
+            RCTLogError(@"Invalid view returned from registry, expecting RCTWebView, got: %@", view);
+        }
+        else {
+            [view goBack];
+        }
+    }];
+}
+RCT_EXPORT_METHOD(goForward:(nonnull NSNumber *)reactTag)
+{
+    [self.bridge.uiManager addUIBlock:^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, AQWebView *> *viewRegistry) {
+        AQWebView *view = viewRegistry[reactTag];
+        if (![view isKindOfClass:[AQWebView class]]) {
+            RCTLogError(@"Invalid view returned from registry, expecting RCTWebView, got: %@", view);
+        }
+        else {
+            [view goForward];
+        }
+    }];
+}
+
 @end