Added method to get current navigation state

Author: maciej-rosiek

AQWebView.ios.js

@@ -17,6 +17,17 @@ class WKWebView extends React.Component {
     NativeModules.AQWebViewManager.goForward(React.findNodeHandle(this.refs.AQWebView));
   }
 
+  getNavigationState(callback) {
+    NativeModules.AQWebViewManager.baseEvent(React.findNodeHandle(this.refs.AQWebView), (err, res) => {
+      if (err) {
+        callback('Getting navigation state from webview error: ' + err)
+      }
+      else {
+        callback(null, res)
+      }
+    })
+  }
+
   _onLoadingStart(navState) {
     if (this.props.onNavigationStateChange) {
       this.props.onNavigationStateChange({type: 'start', ...navState.nativeEvent});

AQWebView/AQWebView.h

@@ -10,5 +10,6 @@
 - (void)reload;
 - (void)goBack;
 - (void)goForward;
+- (NSMutableDictionary<NSString *, id> *)baseEvent;
 
 @end

AQWebView/AQWebViewManager.m

@@ -50,6 +50,7 @@ - (UIView *) view
         }
     }];
 }
+
 RCT_EXPORT_METHOD(goForward:(nonnull NSNumber *)reactTag)
 {
     [self.bridge.uiManager addUIBlock:^(__unused RCTUIManager *uiManager, NSDictionary<NSNumber *, AQWebView *> *viewRegistry) {
@@ -63,4 +64,19 @@ - (UIView *) view
     }];
 }
 
-@end
+RCT_EXPORT_METHOD(baseEvent:(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);
+            _callback(@[@"Invalid view returned from registry, expecting RCTWebView", [NSNull null]]);
+        }
+        else {
+            NSMutableDictionary<NSString *, id> *event = [view baseEvent];
+            callback(@[[NSNull null], event]);
+        }
+    }];
+}
+
+@end