From fe184ba904c6d9ab93d2125a42171cba97332b1f Mon Sep 17 00:00:00 2001
From: xinhao <xuxinhao8260@gmail.com>
Date: Tue, 1 Sep 2020 15:05:40 +0800
Subject: [PATCH] feat(ios): set AllowBackNavigationGestures dynamically from
 JavaScript

---
 src/ios/CDVWKWebViewEngine.h |  1 +
 src/ios/CDVWKWebViewEngine.m | 11 +++++++++++
 src/www/util.js              |  3 +++
 3 files changed, 15 insertions(+)

diff --git a/src/ios/CDVWKWebViewEngine.h b/src/ios/CDVWKWebViewEngine.h
index 9dd7b24c..7272d2ee 100644
--- a/src/ios/CDVWKWebViewEngine.h
+++ b/src/ios/CDVWKWebViewEngine.h
@@ -27,5 +27,6 @@
 
 -(void)setServerBasePath:(CDVInvokedUrlCommand*)command;
 -(void)getServerBasePath:(CDVInvokedUrlCommand*)command;
+-(void)setAllowBackNavigationGestures:(CDVInvokedUrlCommand*)command;
 
 @end
diff --git a/src/ios/CDVWKWebViewEngine.m b/src/ios/CDVWKWebViewEngine.m
index d6b24084..39e184bb 100644
--- a/src/ios/CDVWKWebViewEngine.m
+++ b/src/ios/CDVWKWebViewEngine.m
@@ -802,6 +802,17 @@ -(void)persistServerBasePath:(CDVInvokedUrlCommand*)command
     [userDefaults synchronize];
 }
 
+-(void)setAllowBackNavigationGestures:(CDVInvokedUrlCommand*)command
+{
+     id value = [command argumentAtIndex:0];
+     if (!([value isKindOfClass:[NSNumber class]])) {
+         value = [NSNumber numberWithBool:NO];
+     }
+
+     WKWebView* wkWebView = (WKWebView*)_engineWebView;
+     wkWebView.allowsBackForwardNavigationGestures = [value boolValue];
+}
+
 @end
 
 #pragma mark - CDVWKWeakScriptMessageHandler
diff --git a/src/www/util.js b/src/www/util.js
index ba52a8e9..b3c624d3 100644
--- a/src/www/util.js
+++ b/src/www/util.js
@@ -24,6 +24,9 @@ var WebView = {
   },
   persistServerBasePath: function() {
     exec(null, null, 'IonicWebView', 'persistServerBasePath', []);
+  },
+  setAllowBackNavigationGestures: function(allow) {
+    exec(null, null, 'IonicWebView', 'setAllowBackNavigationGestures', [allow]);
   }
 }