* Initial commit for the fix

Author: Önder Ceylan

README.md

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+# cordova-plugin-wkwebviewx-inputfocusfix
+Cordova plugin for fixing auto focus issue of html elements on WKWebView. 
+
+Currently WKWebView doesn't focus on elements on js .focus() calls. This plugin is extension of CDVWKWebViewEngine class which does ugly swizzling for the focus. Original idea is on: https://github.com/Telerik-Verified-Plugins/WKWebView/commit/04e8296adeb61f289f9c698045c19b62d080c7e3#L609-L620 
+
+## Installation
+
+Install the plugin by running:
+```
+cordova plugin add https://github.com/onderceylan/cordova-plugin-wkwebviewx-inputfocusfix
+```
+
+## Lifetime
+
+The plugin should be out of use once https://github.com/apache/cordova-plugin-wkwebview-engine/pull/37/ and https://github.com/ionic-team/cordova-plugin-wkwebview-engine/pull/171 is merged. Please watch main WKWebView repositories for the merge.

package.json

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+{
+  "author": {
+    "name": "Önder Ceylan <onderceylan@gmail.com>"
+  },
+  "license": "MIT",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/onderceylan/cordova-plugin-wkwebview-inputfocusfix"
+  },
+  "name": "cordova-plugin-wkwebview-inputfocusfix",
+  "version": "1.0.0",
+  "description": "Cordova plugin for fixing auto focus issue of html elements on WKWebView",
+  "cordova": {
+    "id": "cordova-plugin-wkwebview-inputfocusfix",
+    "platforms": [
+      "ios"
+    ]
+  },
+  "keywords": [
+    "ecosystem:cordova",
+    "cordova-ios",
+    "input",
+    "focus",
+    "auto-focus",
+    "wkwebview",
+    "ionic"
+  ],
+  "engines": {
+    "cordovaDependencies": {
+      ">1.0.0": {
+        "cordova": ">=3.2.0"
+      }
+    }
+  }
+}

plugin.xml

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+<?xml version='1.0' encoding='utf-8'?>
+<plugin id="cordova-plugin-wkwebview-inputfocusfix" version="1.0.0"
+        xmlns="http://cordova.apache.org/ns/plugins/1.0"
+        xmlns="http://apache.org/cordova/ns/plugins/1.0"
+        xmlns:rim="http://www.blackberry.com/ns/widgets"
+        xmlns:android="http://schemas.android.com/apk/res/android">
+	<name>WKWebView Input Focus Fix</name>
+	<license>MIT</license>
+
+	<engines>
+		<engine name="cordova" version=">=3.2.0" />
+	</engines>
+
+	<platform name="ios">
+		<config-file parent="/*" target="config.xml">
+			<feature name="WKWebViewInputFocusFix">
+				<param name="ios-package" value="WKWebViewInputFocusFix" />
+				<param name="onload" value="true" />
+			</feature>
+		</config-file>
+
+		<header-file src="src/ios/CDVWKWebViewEngine+InputFocusFix.h" />
+		<source-file src="src/ios/CDVWKWebViewEngine+InputFocusFix.m" />
+	</platform>
+</plugin>

src/ios/CDVWKWebViewEngine+InputFocusFix.h

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+#import <objc/runtime.h>
+#import <Cordova/NSDictionary+CordovaPreferences.h>
+#import "CDVWKWebViewEngine.h"
+
+@interface CDVWKWebViewEngine (InputFocusFix)
++ (void) load;
+- (void) swizzleWKContentViewForInputFocus;
+- (void) keyboardDisplayDoesNotRequireUserAction;
+@end

src/ios/CDVWKWebViewEngine+InputFocusFix.m

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+#import "CDVWKWebViewEngine+InputFocusFix.h"
+
+@implementation CDVWKWebViewEngine (InputFocusFix)
++ (void) load {
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        CDVWKWebViewEngine *cdvWKWebViewEngine = [[CDVWKWebViewEngine alloc] init];
+        [cdvWKWebViewEngine swizzleWKContentViewForInputFocus];
+    });
+}
+
+- (void) swizzleWKContentViewForInputFocus {
+    NSDictionary* settings = self.commandDelegate.settings;
+    if (![settings cordovaBoolSettingForKey:@"KeyboardDisplayRequiresUserAction" defaultValue:YES]) {
+        [self keyboardDisplayDoesNotRequireUserAction];
+    }
+}
+
+// https://github.com/Telerik-Verified-Plugins/WKWebView/commit/04e8296adeb61f289f9c698045c19b62d080c7e3
+- (void) keyboardDisplayDoesNotRequireUserAction {
+    SEL sel = sel_getUid("_startAssistingNode:userIsInteracting:blurPreviousNode:userObject:");
+    Class WKContentView = NSClassFromString(@"WKContentView");
+    Method method = class_getInstanceMethod(WKContentView, sel);
+    IMP originalImp = method_getImplementation(method);
+    IMP imp = imp_implementationWithBlock(^void(id me, void* arg0, BOOL arg1, BOOL arg2, id arg3) {
+        ((void (*)(id, SEL, void*, BOOL, BOOL, id))originalImp)(me, sel, arg0, TRUE, arg2, arg3);
+    });
+    method_setImplementation(method, imp);
+}
+@end