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cordova-plugin-inappbrowser/src/ios/CDVWKInAppBrowser.m

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1/*
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.  See the NOTICE file
distributed with this work for additional information
regarding copyright ownership.  The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License.  You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied.  See the License for the
specific language governing permissions and limitations
under the License.
*/
19
20#import "CDVWKInAppBrowser.h"
21
22#if __has_include("CDVWKProcessPoolFactory.h")
23#import "CDVWKProcessPoolFactory.h"
24#endif
25
26#import <Cordova/CDVPluginResult.h>
27
28#define    kInAppBrowserTargetSelf @"_self"
29#define    kInAppBrowserTargetSystem @"_system"
30#define    kInAppBrowserTargetBlank @"_blank"
31
32#define    kInAppBrowserToolbarBarPositionBottom @"bottom"
33#define    kInAppBrowserToolbarBarPositionTop @"top"
34
35#define    IAB_BRIDGE_NAME @"cordova_iab"
36
37#define    TOOLBAR_HEIGHT 44.0
38#define    LOCATIONBAR_HEIGHT 21.0
39#define    FOOTER_HEIGHT ((TOOLBAR_HEIGHT) + (LOCATIONBAR_HEIGHT))
40
41#pragma mark CDVWKInAppBrowser
42
43@interface CDVWKInAppBrowser () {
  NSInteger _previousStatusBarStyle;
45}
46@end
47
48@implementation CDVWKInAppBrowser
49
50static CDVWKInAppBrowser* instance = nil;
51
52+ (id) getInstance{
  return instance;
54}
55
56- (void)pluginInitialize
57{
  instance = self;
  _previousStatusBarStyle = -1;
  _callbackIdPattern = nil;
  _beforeload = @"";
  _waitForBeforeload = NO;
63}
64
65- (void)onReset
66{
  [self close:nil];
68}
69
70- (void)close:(CDVInvokedUrlCommand*)command
71{
  if (self.inAppBrowserViewController == nil) {
      NSLog(@"IAB.close() called but it was already closed.");
      return;
  }
  
  // Things are cleaned up in browserExit.
  [self.inAppBrowserViewController close];
79}
80
81- (BOOL) isSystemUrl:(NSURL*)url
82{
  if ([[url host] isEqualToString:@"itunes.apple.com"]) {
      return YES;
  }
  
  return NO;
88}
89
90- (void)open:(CDVInvokedUrlCommand*)command
91{
  CDVPluginResult* pluginResult;
  
  NSString* url = [command argumentAtIndex:0];
  NSString* target = [command argumentAtIndex:1 withDefault:kInAppBrowserTargetSelf];
  NSString* options = [command argumentAtIndex:2 withDefault:@"" andClass:[NSString class]];
  
  self.callbackId = command.callbackId;
  
  if (url != nil) {
      NSURL* baseUrl = [self.webViewEngine URL];
      NSURL* absoluteUrl = [[NSURL URLWithString:url relativeToURL:baseUrl] absoluteURL];
      
      if ([self isSystemUrl:absoluteUrl]) {
          target = kInAppBrowserTargetSystem;
      }
      
      if ([target isEqualToString:kInAppBrowserTargetSelf]) {
          [self openInCordovaWebView:absoluteUrl withOptions:options];
      } else if ([target isEqualToString:kInAppBrowserTargetSystem]) {
          [self openInSystem:absoluteUrl];
      } else { // _blank or anything else
          [self openInInAppBrowser:absoluteUrl withOptions:options];
      }
      
      pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK];
  } else {
      pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR messageAsString:@"incorrect number of arguments"];
  }
  
  [pluginResult setKeepCallback:[NSNumber numberWithBool:YES]];
  [self.commandDelegate sendPluginResult:pluginResult callbackId:command.callbackId];
123}
124
125- (void)openInInAppBrowser:(NSURL*)url withOptions:(NSString*)options
126{
  CDVInAppBrowserOptions* browserOptions = [CDVInAppBrowserOptions parseOptions:options];
  
  WKWebsiteDataStore* dataStore = [WKWebsiteDataStore defaultDataStore];
  if (browserOptions.cleardata) {
      
      NSDate* dateFrom = [NSDate dateWithTimeIntervalSince1970:0];
      [dataStore removeDataOfTypes:[WKWebsiteDataStore allWebsiteDataTypes] modifiedSince:dateFrom completionHandler:^{
          NSLog(@"Removed all WKWebView data");
          self.inAppBrowserViewController.webView.configuration.processPool = [[WKProcessPool alloc] init]; // create new process pool to flush all data
      }];
  }
  
  if (browserOptions.clearcache) {
      bool isAtLeastiOS11 = false;
141#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 110000
      if (@available(iOS 11.0, *)) {
          isAtLeastiOS11 = true;
      }
145#endif
          
      if(isAtLeastiOS11){
148#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 110000
          // Deletes all cookies
          WKHTTPCookieStore* cookieStore = dataStore.httpCookieStore;
          [cookieStore getAllCookies:^(NSArray* cookies) {
              NSHTTPCookie* cookie;
              for(cookie in cookies){
                  [cookieStore deleteCookie:cookie completionHandler:nil];
              }
          }];
157#endif
      }else{
          // https://stackoverflow.com/a/31803708/777265
          // Only deletes domain cookies (not session cookies)
          [dataStore fetchDataRecordsOfTypes:[WKWebsiteDataStore allWebsiteDataTypes]
           completionHandler:^(NSArray<WKWebsiteDataRecord *> * __nonnull records) {
               for (WKWebsiteDataRecord *record  in records){
                   NSSet<NSString*>* dataTypes = record.dataTypes;
                   if([dataTypes containsObject:WKWebsiteDataTypeCookies]){
                       [[WKWebsiteDataStore defaultDataStore] removeDataOfTypes:record.dataTypes
                             forDataRecords:@[record]
                             completionHandler:^{}];
                   }
               }
           }];
      }
  }
  
  if (browserOptions.clearsessioncache) {
      bool isAtLeastiOS11 = false;
177#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 110000
      if (@available(iOS 11.0, *)) {
          isAtLeastiOS11 = true;
      }
181#endif
      if (isAtLeastiOS11) {
183#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 110000
          // Deletes session cookies
          WKHTTPCookieStore* cookieStore = dataStore.httpCookieStore;
          [cookieStore getAllCookies:^(NSArray* cookies) {
              NSHTTPCookie* cookie;
              for(cookie in cookies){
                  if(cookie.sessionOnly){
                      [cookieStore deleteCookie:cookie completionHandler:nil];
                  }
              }
          }];
194#endif
      }else{
          NSLog(@"clearsessioncache not available below iOS 11.0");
      }
  }
199
  if (self.inAppBrowserViewController == nil) {
      self.inAppBrowserViewController = [[CDVWKInAppBrowserViewController alloc] initWithBrowserOptions: browserOptions andSettings:self.commandDelegate.settings];
      self.inAppBrowserViewController.navigationDelegate = self;
      
      if ([self.viewController conformsToProtocol:@protocol(CDVScreenOrientationDelegate)]) {
          self.inAppBrowserViewController.orientationDelegate = (UIViewController <CDVScreenOrientationDelegate>*)self.viewController;
      }
  }
  
  [self.inAppBrowserViewController showLocationBar:browserOptions.location];
  [self.inAppBrowserViewController showToolBar:browserOptions.toolbar :browserOptions.toolbarposition];
  if (browserOptions.closebuttoncaption != nil || browserOptions.closebuttoncolor != nil) {
      int closeButtonIndex = browserOptions.lefttoright ? (browserOptions.hidenavigationbuttons ? 1 : 4) : 0;
      [self.inAppBrowserViewController setCloseButtonTitle:browserOptions.closebuttoncaption :browserOptions.closebuttoncolor :closeButtonIndex];
  }
  // Set Presentation Style
  UIModalPresentationStyle presentationStyle = UIModalPresentationFullScreen; // default
  if (browserOptions.presentationstyle != nil) {
      if ([[browserOptions.presentationstyle lowercaseString] isEqualToString:@"pagesheet"]) {
          presentationStyle = UIModalPresentationPageSheet;
      } else if ([[browserOptions.presentationstyle lowercaseString] isEqualToString:@"formsheet"]) {
          presentationStyle = UIModalPresentationFormSheet;
      }
  }
  self.inAppBrowserViewController.modalPresentationStyle = presentationStyle;
  
  // Set Transition Style
  UIModalTransitionStyle transitionStyle = UIModalTransitionStyleCoverVertical; // default
  if (browserOptions.transitionstyle != nil) {
      if ([[browserOptions.transitionstyle lowercaseString] isEqualToString:@"fliphorizontal"]) {
          transitionStyle = UIModalTransitionStyleFlipHorizontal;
      } else if ([[browserOptions.transitionstyle lowercaseString] isEqualToString:@"crossdissolve"]) {
          transitionStyle = UIModalTransitionStyleCrossDissolve;
      }
  }
  self.inAppBrowserViewController.modalTransitionStyle = transitionStyle;
  
  //prevent webView from bouncing
  if (browserOptions.disallowoverscroll) {
      if ([self.inAppBrowserViewController.webView respondsToSelector:@selector(scrollView)]) {
          ((UIScrollView*)[self.inAppBrowserViewController.webView scrollView]).bounces = NO;
      } else {
          for (id subview in self.inAppBrowserViewController.webView.subviews) {
              if ([[subview class] isSubclassOfClass:[UIScrollView class]]) {
                  ((UIScrollView*)subview).bounces = NO;
              }
          }
      }
  }
  
  // use of beforeload event
  if([browserOptions.beforeload isKindOfClass:[NSString class]]){
      _beforeload = browserOptions.beforeload;
  }else{
      _beforeload = @"yes";
  }
  _waitForBeforeload = ![_beforeload isEqualToString:@""];
  
  [self.inAppBrowserViewController navigateTo:url];
  if (!browserOptions.hidden) {
      [self show:nil withNoAnimate:browserOptions.hidden];
  }
262}
263
264- (void)show:(CDVInvokedUrlCommand*)command{
  [self show:command withNoAnimate:NO];
266}
267
268- (void)show:(CDVInvokedUrlCommand*)command withNoAnimate:(BOOL)noAnimate
269{
  BOOL initHidden = NO;
  if(command == nil && noAnimate == YES){
      initHidden = YES;
  }
  
  if (self.inAppBrowserViewController == nil) {
      NSLog(@"Tried to show IAB after it was closed.");
      return;
  }
  if (_previousStatusBarStyle != -1) {
      NSLog(@"Tried to show IAB while already shown");
      return;
  }
  
  if(!initHidden){
      _previousStatusBarStyle = [UIApplication sharedApplication].statusBarStyle;
  }
  
  __block CDVInAppBrowserNavigationController* nav = [[CDVInAppBrowserNavigationController alloc]
                                                      initWithRootViewController:self.inAppBrowserViewController];
  nav.orientationDelegate = self.inAppBrowserViewController;
  nav.navigationBarHidden = YES;
  nav.modalPresentationStyle = self.inAppBrowserViewController.modalPresentationStyle;
  nav.presentationController.delegate = self.inAppBrowserViewController;
  
  __weak CDVWKInAppBrowser* weakSelf = self;
  
  // Run later to avoid the "took a long time" log message.
  dispatch_async(dispatch_get_main_queue(), ^{
      if (weakSelf.inAppBrowserViewController != nil) {
          float osVersion = [[[UIDevice currentDevice] systemVersion] floatValue];
          __strong __typeof(weakSelf) strongSelf = weakSelf;
          if (!strongSelf->tmpWindow) {
              CGRect frame = [[UIScreen mainScreen] bounds];
              if(initHidden && osVersion < 11){
                 frame.origin.x = -10000;
              }
              strongSelf->tmpWindow = [[UIWindow alloc] initWithFrame:frame];
          }
          UIViewController *tmpController = [[UIViewController alloc] init];
          [strongSelf->tmpWindow setRootViewController:tmpController];
          [strongSelf->tmpWindow setWindowLevel:UIWindowLevelNormal];
312
          if(!initHidden || osVersion < 11){
              [self->tmpWindow makeKeyAndVisible];
          }
          [tmpController presentViewController:nav animated:!noAnimate completion:nil];
      }
  });
319}
320
321- (void)hide:(CDVInvokedUrlCommand*)command
322{
  // Set tmpWindow to hidden to make main webview responsive to touch again
  // https://stackoverflow.com/questions/4544489/how-to-remove-a-uiwindow
  self->tmpWindow.hidden = YES;
  self->tmpWindow = nil;
327
  if (self.inAppBrowserViewController == nil) {
      NSLog(@"Tried to hide IAB after it was closed.");
      return;
      
      
  }
  if (_previousStatusBarStyle == -1) {
      NSLog(@"Tried to hide IAB while already hidden");
      return;
  }
  
  _previousStatusBarStyle = [UIApplication sharedApplication].statusBarStyle;
  
  // Run later to avoid the "took a long time" log message.
  dispatch_async(dispatch_get_main_queue(), ^{
      if (self.inAppBrowserViewController != nil) {
          _previousStatusBarStyle = -1;
          [self.inAppBrowserViewController.presentingViewController dismissViewControllerAnimated:YES completion:nil];
      }
  });
348}
349
350- (void)openInCordovaWebView:(NSURL*)url withOptions:(NSString*)options
351{
  NSURLRequest* request = [NSURLRequest requestWithURL:url];
  // the webview engine itself will filter for this according to <allow-navigation> policy
  // in config.xml for cordova-ios-4.0
  [self.webViewEngine loadRequest:request];
356}
357
358- (void)openInSystem:(NSURL*)url
359{
  if ([[UIApplication sharedApplication] openURL:url] == NO) {
      [[NSNotificationCenter defaultCenter] postNotification:[NSNotification notificationWithName:CDVPluginHandleOpenURLNotification object:url]];
      [[UIApplication sharedApplication] openURL:url];
  }
364}
365
366- (void)loadAfterBeforeload:(CDVInvokedUrlCommand*)command
367{
  NSString* urlStr = [command argumentAtIndex:0];
369
  if ([_beforeload isEqualToString:@""]) {
      NSLog(@"unexpected loadAfterBeforeload called without feature beforeload=get|post");
  }
  if (self.inAppBrowserViewController == nil) {
      NSLog(@"Tried to invoke loadAfterBeforeload on IAB after it was closed.");
      return;
  }
  if (urlStr == nil) {
      NSLog(@"loadAfterBeforeload called with nil argument, ignoring.");
      return;
  }
381
  NSURL* url = [NSURL URLWithString:urlStr];
  //_beforeload = @"";
  _waitForBeforeload = NO;
  [self.inAppBrowserViewController navigateTo:url];
386}
387
388// This is a helper method for the inject{Script|Style}{Code|File} API calls, which
389// provides a consistent method for injecting JavaScript code into the document.
390//
391// If a wrapper string is supplied, then the source string will be JSON-encoded (adding
392// quotes) and wrapped using string formatting. (The wrapper string should have a single
393// '%@' marker).
394//
395// If no wrapper is supplied, then the source string is executed directly.
396
397- (void)injectDeferredObject:(NSString*)source withWrapper:(NSString*)jsWrapper
398{
  // Ensure a message handler bridge is created to communicate with the CDVWKInAppBrowserViewController
  [self evaluateJavaScript: [NSString stringWithFormat:@"(function(w){if(!w._cdvMessageHandler) {w._cdvMessageHandler = function(id,d){w.webkit.messageHandlers.%@.postMessage({d:d, id:id});}}})(window)", IAB_BRIDGE_NAME]];
  
  if (jsWrapper != nil) {
      NSData* jsonData = [NSJSONSerialization dataWithJSONObject:@[source] options:0 error:nil];
      NSString* sourceArrayString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
      if (sourceArrayString) {
          NSString* sourceString = [sourceArrayString substringWithRange:NSMakeRange(1, [sourceArrayString length] - 2)];
          NSString* jsToInject = [NSString stringWithFormat:jsWrapper, sourceString];
          [self evaluateJavaScript:jsToInject];
      }
  } else {
      [self evaluateJavaScript:source];
  }
413}
414
415
416//Synchronus helper for javascript evaluation
417- (void)evaluateJavaScript:(NSString *)script {
  __block NSString* _script = script;
  [self.inAppBrowserViewController.webView evaluateJavaScript:script completionHandler:^(id result, NSError *error) {
      if (error == nil) {
          if (result != nil) {
              NSLog(@"%@", result);
          }
      } else {
          NSLog(@"evaluateJavaScript error : %@ : %@", error.localizedDescription, _script);
      }
  }];
428}
429
430- (void)injectScriptCode:(CDVInvokedUrlCommand*)command
431{
  NSString* jsWrapper = nil;
  
  if ((command.callbackId != nil) && ![command.callbackId isEqualToString:@"INVALID"]) {
      jsWrapper = [NSString stringWithFormat:@"_cdvMessageHandler('%@',JSON.stringify([eval(%%@)]));", command.callbackId];
  }
  [self injectDeferredObject:[command argumentAtIndex:0] withWrapper:jsWrapper];
438}
439
440- (void)injectScriptFile:(CDVInvokedUrlCommand*)command
441{
  NSString* jsWrapper;
  
  if ((command.callbackId != nil) && ![command.callbackId isEqualToString:@"INVALID"]) {
      jsWrapper = [NSString stringWithFormat:@"(function(d) { var c = d.createElement('script'); c.src = %%@; c.onload = function() { _cdvMessageHandler('%@'); }; d.body.appendChild(c); })(document)", command.callbackId];
  } else {
      jsWrapper = @"(function(d) { var c = d.createElement('script'); c.src = %@; d.body.appendChild(c); })(document)";
  }
  [self injectDeferredObject:[command argumentAtIndex:0] withWrapper:jsWrapper];
450}
451
452- (void)injectStyleCode:(CDVInvokedUrlCommand*)command
453{
  NSString* jsWrapper;
  
  if ((command.callbackId != nil) && ![command.callbackId isEqualToString:@"INVALID"]) {
      jsWrapper = [NSString stringWithFormat:@"(function(d) { var c = d.createElement('style'); c.innerHTML = %%@; c.onload = function() { _cdvMessageHandler('%@'); }; d.body.appendChild(c); })(document)", command.callbackId];
  } else {
      jsWrapper = @"(function(d) { var c = d.createElement('style'); c.innerHTML = %@; d.body.appendChild(c); })(document)";
  }
  [self injectDeferredObject:[command argumentAtIndex:0] withWrapper:jsWrapper];
462}
463
464- (void)injectStyleFile:(CDVInvokedUrlCommand*)command
465{
  NSString* jsWrapper;
  
  if ((command.callbackId != nil) && ![command.callbackId isEqualToString:@"INVALID"]) {
      jsWrapper = [NSString stringWithFormat:@"(function(d) { var c = d.createElement('link'); c.rel='stylesheet'; c.type='text/css'; c.href = %%@; c.onload = function() { _cdvMessageHandler('%@'); }; d.body.appendChild(c); })(document)", command.callbackId];
  } else {
      jsWrapper = @"(function(d) { var c = d.createElement('link'); c.rel='stylesheet', c.type='text/css'; c.href = %@; d.body.appendChild(c); })(document)";
  }
  [self injectDeferredObject:[command argumentAtIndex:0] withWrapper:jsWrapper];
474}
475
476- (BOOL)isValidCallbackId:(NSString *)callbackId
477{
  NSError *err = nil;
  // Initialize on first use
  if (self.callbackIdPattern == nil) {
      self.callbackIdPattern = [NSRegularExpression regularExpressionWithPattern:@"^InAppBrowser[0-9]{1,10}$" options:0 error:&err];
      if (err != nil) {
          // Couldn't initialize Regex; No is safer than Yes.
          return NO;
      }
  }
  if ([self.callbackIdPattern firstMatchInString:callbackId options:0 range:NSMakeRange(0, [callbackId length])]) {
      return YES;
  }
  return NO;
491}
492
493/**
* The message handler bridge provided for the InAppBrowser is capable of executing any oustanding callback belonging
* to the InAppBrowser plugin. Care has been taken that other callbacks cannot be triggered, and that no
* other code execution is possible.
*/
498- (void)webView:(WKWebView *)theWebView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler {
  
  NSURL* url = navigationAction.request.URL;
  NSURL* mainDocumentURL = navigationAction.request.mainDocumentURL;
  BOOL isTopLevelNavigation = [url isEqual:mainDocumentURL];
  BOOL shouldStart = YES;
  BOOL useBeforeLoad = NO;
  NSString* httpMethod = navigationAction.request.HTTPMethod;
  NSString* errorMessage = nil;
  
  if([_beforeload isEqualToString:@"post"]){
      //TODO handle POST requests by preserving POST data then remove this condition
      errorMessage = @"beforeload doesn't yet support POST requests";
  }
  else if(isTopLevelNavigation && (
         [_beforeload isEqualToString:@"yes"]
     || ([_beforeload isEqualToString:@"get"] && [httpMethod isEqualToString:@"GET"])
  // TODO comment in when POST requests are handled
  // || ([_beforeload isEqualToString:@"post"] && [httpMethod isEqualToString:@"POST"])
  )){
      useBeforeLoad = YES;
  }
520
  // When beforeload, on first URL change, initiate JS callback. Only after the beforeload event, continue.
  if (_waitForBeforeload && useBeforeLoad) {
      CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK
                                                    messageAsDictionary:@{@"type":@"beforeload", @"url":[url absoluteString]}];
      [pluginResult setKeepCallback:[NSNumber numberWithBool:YES]];
      
      [self.commandDelegate sendPluginResult:pluginResult callbackId:self.callbackId];
      decisionHandler(WKNavigationActionPolicyCancel);
      return;
  }
  
  if(errorMessage != nil){
      NSLog(errorMessage);
      CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR
                                                    messageAsDictionary:@{@"type":@"loaderror", @"url":[url absoluteString], @"code": @"-1", @"message": errorMessage}];
      [pluginResult setKeepCallback:[NSNumber numberWithBool:YES]];
      [self.commandDelegate sendPluginResult:pluginResult callbackId:self.callbackId];
  }
  
  //if is an app store link, let the system handle it, otherwise it fails to load it
  if ([[ url scheme] isEqualToString:@"itms-appss"] || [[ url scheme] isEqualToString:@"itms-apps"]) {
      [theWebView stopLoading];
      [self openInSystem:url];
      shouldStart = NO;
  }
  else if ((self.callbackId != nil) && isTopLevelNavigation) {
      // Send a loadstart event for each top-level navigation (includes redirects).
      CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK
                                                    messageAsDictionary:@{@"type":@"loadstart", @"url":[url absoluteString]}];
      [pluginResult setKeepCallback:[NSNumber numberWithBool:YES]];
      
      [self.commandDelegate sendPluginResult:pluginResult callbackId:self.callbackId];
  }
554
  if (useBeforeLoad) {
      _waitForBeforeload = YES;
  }
  
  if(shouldStart){
      // Fix GH-417 & GH-424: Handle non-default target attribute
      // Based on https://stackoverflow.com/a/25713070/777265
      if (!navigationAction.targetFrame){
          [theWebView loadRequest:navigationAction.request];
          decisionHandler(WKNavigationActionPolicyCancel);
      }else{
          decisionHandler(WKNavigationActionPolicyAllow);
      }
  }else{
      decisionHandler(WKNavigationActionPolicyCancel);
  }
571}
572
573#pragma mark WKScriptMessageHandler delegate
574- (void)userContentController:(nonnull WKUserContentController *)userContentController didReceiveScriptMessage:(nonnull WKScriptMessage *)message {
  
  CDVPluginResult* pluginResult = nil;
  
  if([message.body isKindOfClass:[NSDictionary class]]){
      NSDictionary* messageContent = (NSDictionary*) message.body;
      NSString* scriptCallbackId = messageContent[@"id"];
      
      if([messageContent objectForKey:@"d"]){
          NSString* scriptResult = messageContent[@"d"];
          NSError* __autoreleasing error = nil;
          NSData* decodedResult = [NSJSONSerialization JSONObjectWithData:[scriptResult dataUsingEncoding:NSUTF8StringEncoding] options:kNilOptions error:&error];
          if ((error == nil) && [decodedResult isKindOfClass:[NSArray class]]) {
              pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsArray:(NSArray*)decodedResult];
          } else {
              pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_JSON_EXCEPTION];
          }
      } else {
          pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsArray:@[]];
      }
      [self.commandDelegate sendPluginResult:pluginResult callbackId:scriptCallbackId];
  }else if(self.callbackId != nil){
      // Send a message event
      NSString* messageContent = (NSString*) message.body;
      NSError* __autoreleasing error = nil;
      NSData* decodedResult = [NSJSONSerialization JSONObjectWithData:[messageContent dataUsingEncoding:NSUTF8StringEncoding] options:kNilOptions error:&error];
      if (error == nil) {
          NSMutableDictionary* dResult = [NSMutableDictionary new];
          [dResult setValue:@"message" forKey:@"type"];
          [dResult setObject:decodedResult forKey:@"data"];
          CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsDictionary:dResult];
          [pluginResult setKeepCallback:[NSNumber numberWithBool:YES]];
          [self.commandDelegate sendPluginResult:pluginResult callbackId:self.callbackId];
      }
  }
609}
610
611- (void)didStartProvisionalNavigation:(WKWebView*)theWebView
612{
  NSLog(@"didStartProvisionalNavigation");
614//    self.inAppBrowserViewController.currentURL = theWebView.URL;
615}
616
617- (void)didFinishNavigation:(WKWebView*)theWebView
618{
  if (self.callbackId != nil) {
      NSString* url = [theWebView.URL absoluteString];
      if(url == nil){
          if(self.inAppBrowserViewController.currentURL != nil){
              url = [self.inAppBrowserViewController.currentURL absoluteString];
          }else{
              url = @"";
          }
      }
      CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK
                                                    messageAsDictionary:@{@"type":@"loadstop", @"url":url}];
      [pluginResult setKeepCallback:[NSNumber numberWithBool:YES]];
      
      [self.commandDelegate sendPluginResult:pluginResult callbackId:self.callbackId];
  }
634}
635
636- (void)webView:(WKWebView*)theWebView didFailNavigation:(NSError*)error
637{
  if (self.callbackId != nil) {
      NSString* url = [theWebView.URL absoluteString];
      if(url == nil){
          if(self.inAppBrowserViewController.currentURL != nil){
              url = [self.inAppBrowserViewController.currentURL absoluteString];
          }else{
              url = @"";
          }
      }
      CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR
                                                    messageAsDictionary:@{@"type":@"loaderror", @"url":url, @"code": [NSNumber numberWithInteger:error.code], @"message": error.localizedDescription}];
      [pluginResult setKeepCallback:[NSNumber numberWithBool:YES]];
      
      [self.commandDelegate sendPluginResult:pluginResult callbackId:self.callbackId];
  }
653}
654
655- (void)browserExit
656{
  if (self.callbackId != nil) {
      CDVPluginResult* pluginResult = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK
                                                    messageAsDictionary:@{@"type":@"exit"}];
      [self.commandDelegate sendPluginResult:pluginResult callbackId:self.callbackId];
      self.callbackId = nil;
  }
  
  [self.inAppBrowserViewController.configuration.userContentController removeScriptMessageHandlerForName:IAB_BRIDGE_NAME];
  self.inAppBrowserViewController.configuration = nil;
  
  [self.inAppBrowserViewController.webView stopLoading];
  [self.inAppBrowserViewController.webView removeFromSuperview];
  [self.inAppBrowserViewController.webView setUIDelegate:nil];
  [self.inAppBrowserViewController.webView setNavigationDelegate:nil];
  self.inAppBrowserViewController.webView = nil;
  
  // Set navigationDelegate to nil to ensure no callbacks are received from it.
  self.inAppBrowserViewController.navigationDelegate = nil;
  self.inAppBrowserViewController = nil;
676
  // Set tmpWindow to hidden to make main webview responsive to touch again
  // Based on https://stackoverflow.com/questions/4544489/how-to-remove-a-uiwindow
  self->tmpWindow.hidden = YES;
  self->tmpWindow = nil;
681
  if (IsAtLeastiOSVersion(@"7.0")) {
      if (_previousStatusBarStyle != -1) {
          [[UIApplication sharedApplication] setStatusBarStyle:_previousStatusBarStyle];
          
      }
  }
  
  _previousStatusBarStyle = -1; // this value was reset before reapplying it. caused statusbar to stay black on ios7
690}
691
692@end //CDVWKInAppBrowser
693
694#pragma mark CDVWKInAppBrowserViewController
695
696@implementation CDVWKInAppBrowserViewController
697
698@synthesize currentURL;
699
700CGFloat lastReducedStatusBarHeight = 0.0;
701BOOL isExiting = FALSE;
702
703- (id)initWithBrowserOptions: (CDVInAppBrowserOptions*) browserOptions andSettings:(NSDictionary *)settings
704{
  self = [super init];
  if (self != nil) {
      _browserOptions = browserOptions;
      _settings = settings;
      self.webViewUIDelegate = [[CDVWKInAppBrowserUIDelegate alloc] initWithTitle:[[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleDisplayName"]];
      [self.webViewUIDelegate setViewController:self];
      
      [self createViews];
  }
  
  return self;
716}
717
718-(void)dealloc {
  //NSLog(@"dealloc");
720}
721
722- (void)createViews
723{
  // We create the views in code for primarily for ease of upgrades and not requiring an external .xib to be included
  
  CGRect webViewBounds = self.view.bounds;
  BOOL toolbarIsAtBottom = ![_browserOptions.toolbarposition isEqualToString:kInAppBrowserToolbarBarPositionTop];
  webViewBounds.size.height -= _browserOptions.location ? FOOTER_HEIGHT : TOOLBAR_HEIGHT;
  WKUserContentController* userContentController = [[WKUserContentController alloc] init];
  
  WKWebViewConfiguration* configuration = [[WKWebViewConfiguration alloc] init];
  
  NSString *userAgent = configuration.applicationNameForUserAgent;
  if (
      [self settingForKey:@"OverrideUserAgent"] == nil &&
      [self settingForKey:@"AppendUserAgent"] != nil
      ) {
      userAgent = [NSString stringWithFormat:@"%@ %@", userAgent, [self settingForKey:@"AppendUserAgent"]];
  }
  configuration.applicationNameForUserAgent = userAgent;
  configuration.userContentController = userContentController;
742#if __has_include("CDVWKProcessPoolFactory.h")
  configuration.processPool = [[CDVWKProcessPoolFactory sharedFactory] sharedProcessPool];
744#endif
  [configuration.userContentController addScriptMessageHandler:self name:IAB_BRIDGE_NAME];
  
  //WKWebView options
  configuration.allowsInlineMediaPlayback = _browserOptions.allowinlinemediaplayback;
  if (IsAtLeastiOSVersion(@"10.0")) {
      configuration.ignoresViewportScaleLimits = _browserOptions.enableviewportscale;
      if(_browserOptions.mediaplaybackrequiresuseraction == YES){
          configuration.mediaTypesRequiringUserActionForPlayback = WKAudiovisualMediaTypeAll;
      }else{
          configuration.mediaTypesRequiringUserActionForPlayback = WKAudiovisualMediaTypeNone;
      }
  }else{ // iOS 9
      configuration.mediaPlaybackRequiresUserAction = _browserOptions.mediaplaybackrequiresuseraction;
  }
  
  if (@available(iOS 13.0, *)) {
      NSString *contentMode = [self settingForKey:@"PreferredContentMode"];
      if ([contentMode isEqual: @"mobile"]) {
          configuration.defaultWebpagePreferences.preferredContentMode = WKContentModeMobile;
      } else if ([contentMode  isEqual: @"desktop"]) {
          configuration.defaultWebpagePreferences.preferredContentMode = WKContentModeDesktop;
      }
      
  }
  
770
  self.webView = [[WKWebView alloc] initWithFrame:webViewBounds configuration:configuration];
  
  [self.view addSubview:self.webView];
  [self.view sendSubviewToBack:self.webView];
  
  
  self.webView.navigationDelegate = self;
  self.webView.UIDelegate = self.webViewUIDelegate;
  self.webView.backgroundColor = [UIColor whiteColor];
  if ([self settingForKey:@"OverrideUserAgent"] != nil) {
      self.webView.customUserAgent = [self settingForKey:@"OverrideUserAgent"];
  }
  
  self.webView.clearsContextBeforeDrawing = YES;
  self.webView.clipsToBounds = YES;
  self.webView.contentMode = UIViewContentModeScaleToFill;
  self.webView.multipleTouchEnabled = YES;
  self.webView.opaque = YES;
  self.webView.userInteractionEnabled = YES;
  self.automaticallyAdjustsScrollViewInsets = YES ;
  [self.webView setAutoresizingMask:UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth];
  self.webView.allowsLinkPreview = NO;
  self.webView.allowsBackForwardNavigationGestures = NO;
  
795#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 110000
 if (@available(iOS 11.0, *)) {
     [self.webView.scrollView setContentInsetAdjustmentBehavior:UIScrollViewContentInsetAdjustmentNever];
 }
799#endif
  
  self.spinner = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
  self.spinner.alpha = 1.000;
  self.spinner.autoresizesSubviews = YES;
  self.spinner.autoresizingMask = (UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleBottomMargin | UIViewAutoresizingFlexibleRightMargin);
  self.spinner.clearsContextBeforeDrawing = NO;
  self.spinner.clipsToBounds = NO;
  self.spinner.contentMode = UIViewContentModeScaleToFill;
  self.spinner.frame = CGRectMake(CGRectGetMidX(self.webView.frame), CGRectGetMidY(self.webView.frame), 20.0, 20.0);
  self.spinner.hidden = NO;
  self.spinner.hidesWhenStopped = YES;
  self.spinner.multipleTouchEnabled = NO;
  self.spinner.opaque = NO;
  self.spinner.userInteractionEnabled = NO;
  [self.spinner stopAnimating];
  
  self.closeButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(close)];
  self.closeButton.enabled = YES;
  
  UIBarButtonItem* flexibleSpaceButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
  
  UIBarButtonItem* fixedSpaceButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil];
  fixedSpaceButton.width = 20;
  
  float toolbarY = toolbarIsAtBottom ? self.view.bounds.size.height - TOOLBAR_HEIGHT : 0.0;
  CGRect toolbarFrame = CGRectMake(0.0, toolbarY, self.view.bounds.size.width, TOOLBAR_HEIGHT);
  
  self.toolbar = [[UIToolbar alloc] initWithFrame:toolbarFrame];
  self.toolbar.alpha = 1.000;
  self.toolbar.autoresizesSubviews = YES;
  self.toolbar.autoresizingMask = toolbarIsAtBottom ? (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleTopMargin) : UIViewAutoresizingFlexibleWidth;
  self.toolbar.barStyle = UIBarStyleBlackOpaque;
  self.toolbar.clearsContextBeforeDrawing = NO;
  self.toolbar.clipsToBounds = NO;
  self.toolbar.contentMode = UIViewContentModeScaleToFill;
  self.toolbar.hidden = NO;
  self.toolbar.multipleTouchEnabled = NO;
  self.toolbar.opaque = NO;
  self.toolbar.userInteractionEnabled = YES;
  if (_browserOptions.toolbarcolor != nil) { // Set toolbar color if user sets it in options
    self.toolbar.barTintColor = [self colorFromHexString:_browserOptions.toolbarcolor];
  }
  if (!_browserOptions.toolbartranslucent) { // Set toolbar translucent to no if user sets it in options
    self.toolbar.translucent = NO;
  }
  
  CGFloat labelInset = 5.0;
  float locationBarY = toolbarIsAtBottom ? self.view.bounds.size.height - FOOTER_HEIGHT : self.view.bounds.size.height - LOCATIONBAR_HEIGHT;
  
  self.addressLabel = [[UILabel alloc] initWithFrame:CGRectMake(labelInset, locationBarY, self.view.bounds.size.width - labelInset, LOCATIONBAR_HEIGHT)];
  self.addressLabel.adjustsFontSizeToFitWidth = NO;
  self.addressLabel.alpha = 1.000;
  self.addressLabel.autoresizesSubviews = YES;
  self.addressLabel.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleTopMargin;
  self.addressLabel.backgroundColor = [UIColor clearColor];
  self.addressLabel.baselineAdjustment = UIBaselineAdjustmentAlignCenters;
  self.addressLabel.clearsContextBeforeDrawing = YES;
  self.addressLabel.clipsToBounds = YES;
  self.addressLabel.contentMode = UIViewContentModeScaleToFill;
  self.addressLabel.enabled = YES;
  self.addressLabel.hidden = NO;
  self.addressLabel.lineBreakMode = NSLineBreakByTruncatingTail;
  
  if ([self.addressLabel respondsToSelector:NSSelectorFromString(@"setMinimumScaleFactor:")]) {
      [self.addressLabel setValue:@(10.0/[UIFont labelFontSize]) forKey:@"minimumScaleFactor"];
  } else if ([self.addressLabel respondsToSelector:NSSelectorFromString(@"setMinimumFontSize:")]) {
      [self.addressLabel setValue:@(10.0) forKey:@"minimumFontSize"];
  }
  
  self.addressLabel.multipleTouchEnabled = NO;
  self.addressLabel.numberOfLines = 1;
  self.addressLabel.opaque = NO;
  self.addressLabel.shadowOffset = CGSizeMake(0.0, -1.0);
  self.addressLabel.text = NSLocalizedString(@"Loading...", nil);
  self.addressLabel.textAlignment = NSTextAlignmentLeft;
  self.addressLabel.textColor = [UIColor colorWithWhite:1.000 alpha:1.000];
  self.addressLabel.userInteractionEnabled = NO;
  
  NSString* frontArrowString = NSLocalizedString(@"►", nil); // create arrow from Unicode char
  self.forwardButton = [[UIBarButtonItem alloc] initWithTitle:frontArrowString style:UIBarButtonItemStylePlain target:self action:@selector(goForward:)];
  self.forwardButton.enabled = YES;
  self.forwardButton.imageInsets = UIEdgeInsetsZero;
  if (_browserOptions.navigationbuttoncolor != nil) { // Set button color if user sets it in options
    self.forwardButton.tintColor = [self colorFromHexString:_browserOptions.navigationbuttoncolor];
  }
885
  NSString* backArrowString = NSLocalizedString(@"◄", nil); // create arrow from Unicode char
  self.backButton = [[UIBarButtonItem alloc] initWithTitle:backArrowString style:UIBarButtonItemStylePlain target:self action:@selector(goBack:)];
  self.backButton.enabled = YES;
  self.backButton.imageInsets = UIEdgeInsetsZero;
  if (_browserOptions.navigationbuttoncolor != nil) { // Set button color if user sets it in options
    self.backButton.tintColor = [self colorFromHexString:_browserOptions.navigationbuttoncolor];
  }
893
  // Filter out Navigation Buttons if user requests so
  if (_browserOptions.hidenavigationbuttons) {
      if (_browserOptions.lefttoright) {
          [self.toolbar setItems:@[flexibleSpaceButton, self.closeButton]];
      } else {
          [self.toolbar setItems:@[self.closeButton, flexibleSpaceButton]];
      }
  } else if (_browserOptions.lefttoright) {
      [self.toolbar setItems:@[self.backButton, fixedSpaceButton, self.forwardButton, flexibleSpaceButton, self.closeButton]];
  } else {
      [self.toolbar setItems:@[self.closeButton, flexibleSpaceButton, self.backButton, fixedSpaceButton, self.forwardButton]];
  }
  
  self.view.backgroundColor = [UIColor clearColor];
  [self.view addSubview:self.toolbar];
  [self.view addSubview:self.addressLabel];
  [self.view addSubview:self.spinner];
911}
912
913- (id)settingForKey:(NSString*)key
914{
  return [_settings objectForKey:[key lowercaseString]];
916}
917
918- (void) setWebViewFrame : (CGRect) frame {
  NSLog(@"Setting the WebView's frame to %@", NSStringFromCGRect(frame));
  [self.webView setFrame:frame];
921}
922
923- (void)setCloseButtonTitle:(NSString*)title : (NSString*) colorString : (int) buttonIndex
924{
  // the advantage of using UIBarButtonSystemItemDone is the system will localize it for you automatically
  // but, if you want to set this yourself, knock yourself out (we can't set the title for a system Done button, so we have to create a new one)
  self.closeButton = nil;
  // Initialize with title if title is set, otherwise the title will be 'Done' localized
  self.closeButton = title != nil ? [[UIBarButtonItem alloc] initWithTitle:title style:UIBarButtonItemStyleBordered target:self action:@selector(close)] : [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(close)];
  self.closeButton.enabled = YES;
  // If color on closebutton is requested then initialize with that that color, otherwise use initialize with default
  self.closeButton.tintColor = colorString != nil ? [self colorFromHexString:colorString] : [UIColor colorWithRed:60.0 / 255.0 green:136.0 / 255.0 blue:230.0 / 255.0 alpha:1];
  
  NSMutableArray* items = [self.toolbar.items mutableCopy];
  [items replaceObjectAtIndex:buttonIndex withObject:self.closeButton];
  [self.toolbar setItems:items];
937}
938
939- (void)showLocationBar:(BOOL)show
940{
  CGRect locationbarFrame = self.addressLabel.frame;
  
  BOOL toolbarVisible = !self.toolbar.hidden;
  
  // prevent double show/hide
  if (show == !(self.addressLabel.hidden)) {
      return;
  }
  
  if (show) {
      self.addressLabel.hidden = NO;
      
      if (toolbarVisible) {
          // toolBar at the bottom, leave as is
          // put locationBar on top of the toolBar
          
          CGRect webViewBounds = self.view.bounds;
          webViewBounds.size.height -= FOOTER_HEIGHT;
          [self setWebViewFrame:webViewBounds];
          
          locationbarFrame.origin.y = webViewBounds.size.height;
          self.addressLabel.frame = locationbarFrame;
      } else {
          // no toolBar, so put locationBar at the bottom
          
          CGRect webViewBounds = self.view.bounds;
          webViewBounds.size.height -= LOCATIONBAR_HEIGHT;
          [self setWebViewFrame:webViewBounds];
          
          locationbarFrame.origin.y = webViewBounds.size.height;
          self.addressLabel.frame = locationbarFrame;
      }
  } else {
      self.addressLabel.hidden = YES;
      
      if (toolbarVisible) {
          // locationBar is on top of toolBar, hide locationBar
          
          // webView take up whole height less toolBar height
          CGRect webViewBounds = self.view.bounds;
          webViewBounds.size.height -= TOOLBAR_HEIGHT;
          [self setWebViewFrame:webViewBounds];
      } else {
          // no toolBar, expand webView to screen dimensions
          [self setWebViewFrame:self.view.bounds];
      }
  }
988}
989
990- (void)showToolBar:(BOOL)show : (NSString *) toolbarPosition
991{
  CGRect toolbarFrame = self.toolbar.frame;
  CGRect locationbarFrame = self.addressLabel.frame;
  
  BOOL locationbarVisible = !self.addressLabel.hidden;
  
  // prevent double show/hide
  if (show == !(self.toolbar.hidden)) {
      return;
  }
  
  if (show) {
      self.toolbar.hidden = NO;
      CGRect webViewBounds = self.view.bounds;
      
      if (locationbarVisible) {
          // locationBar at the bottom, move locationBar up
          // put toolBar at the bottom
          webViewBounds.size.height -= FOOTER_HEIGHT;
          locationbarFrame.origin.y = webViewBounds.size.height;
          self.addressLabel.frame = locationbarFrame;
          self.toolbar.frame = toolbarFrame;
      } else {
          // no locationBar, so put toolBar at the bottom
          CGRect webViewBounds = self.view.bounds;
          webViewBounds.size.height -= TOOLBAR_HEIGHT;
          self.toolbar.frame = toolbarFrame;
      }
      
      if ([toolbarPosition isEqualToString:kInAppBrowserToolbarBarPositionTop]) {
          toolbarFrame.origin.y = 0;
          webViewBounds.origin.y += toolbarFrame.size.height;
          [self setWebViewFrame:webViewBounds];
      } else {
          toolbarFrame.origin.y = (webViewBounds.size.height + LOCATIONBAR_HEIGHT);
      }
      [self setWebViewFrame:webViewBounds];
      
  } else {
      self.toolbar.hidden = YES;
      
      if (locationbarVisible) {
          // locationBar is on top of toolBar, hide toolBar
          // put locationBar at the bottom
          
          // webView take up whole height less locationBar height
          CGRect webViewBounds = self.view.bounds;
          webViewBounds.size.height -= LOCATIONBAR_HEIGHT;
          [self setWebViewFrame:webViewBounds];
          
          // move locationBar down
          locationbarFrame.origin.y = webViewBounds.size.height;
          self.addressLabel.frame = locationbarFrame;
      } else {
          // no locationBar, expand webView to screen dimensions
          [self setWebViewFrame:self.view.bounds];
      }
  }
1049}
1050
1051- (void)viewDidLoad
1052{
  [super viewDidLoad];
1054}
1055
1056- (void)viewDidDisappear:(BOOL)animated
1057{
  [super viewDidDisappear:animated];
  if (isExiting && (self.navigationDelegate != nil) && [self.navigationDelegate respondsToSelector:@selector(browserExit)]) {
      [self.navigationDelegate browserExit];
      isExiting = FALSE;
  }
1063}
1064
1065- (UIStatusBarStyle)preferredStatusBarStyle
1066{
  NSString* statusBarStylePreference = [self settingForKey:@"InAppBrowserStatusBarStyle"];
  if (statusBarStylePreference && [statusBarStylePreference isEqualToString:@"lightcontent"]) {
      return UIStatusBarStyleLightContent;
  } else {
      return UIStatusBarStyleDefault;
  }
1073}
1074
1075- (BOOL)prefersStatusBarHidden {
  return NO;
1077}
1078
1079- (void)close
1080{
  self.currentURL = nil;
  
  __weak UIViewController* weakSelf = self;
  
  // Run later to avoid the "took a long time" log message.
  dispatch_async(dispatch_get_main_queue(), ^{
      isExiting = TRUE;
      lastReducedStatusBarHeight = 0.0;
      if ([weakSelf respondsToSelector:@selector(presentingViewController)]) {
          [[weakSelf presentingViewController] dismissViewControllerAnimated:YES completion:nil];
      } else {
          [[weakSelf parentViewController] dismissViewControllerAnimated:YES completion:nil];
      }
  });
1095}
1096
1097- (void)navigateTo:(NSURL*)url
1098{
  if ([url.scheme isEqualToString:@"file"]) {
      [self.webView loadFileURL:url allowingReadAccessToURL:url];
  } else {
      NSURLRequest* request = [NSURLRequest requestWithURL:url];
      [self.webView loadRequest:request];
  }
1105}
1106
1107- (void)goBack:(id)sender
1108{
  [self.webView goBack];
1110}
1111
1112- (void)goForward:(id)sender
1113{
  [self.webView goForward];
1115}
1116
1117- (void)viewWillAppear:(BOOL)animated
1118{
  [self rePositionViews];
  
  [super viewWillAppear:animated];
1122}
1123
1124//
1125// On iOS 7 the status bar is part of the view's dimensions, therefore it's height has to be taken into account.
1126// The height of it could be hardcoded as 20 pixels, but that would assume that the upcoming releases of iOS won't
1127// change that value.
1128//
1129- (float) getStatusBarOffset {
  return (float) IsAtLeastiOSVersion(@"7.0") ? [[UIApplication sharedApplication] statusBarFrame].size.height : 0.0;
1131}
1132
1133- (void) rePositionViews {
  CGRect viewBounds = [self.webView bounds];
  CGFloat statusBarHeight = [self getStatusBarOffset];
  
  // orientation portrait or portraitUpsideDown: status bar is on the top and web view is to be aligned to the bottom of the status bar
  // orientation landscapeLeft or landscapeRight: status bar height is 0 in but lets account for it in case things ever change in the future
  viewBounds.origin.y = statusBarHeight;
  
  // account for web view height portion that may have been reduced by a previous call to this method
  viewBounds.size.height = viewBounds.size.height - statusBarHeight + lastReducedStatusBarHeight;
  lastReducedStatusBarHeight = statusBarHeight;
  
  if ((_browserOptions.toolbar) && ([_browserOptions.toolbarposition isEqualToString:kInAppBrowserToolbarBarPositionTop])) {
      // if we have to display the toolbar on top of the web view, we need to account for its height
      viewBounds.origin.y += TOOLBAR_HEIGHT;
      self.toolbar.frame = CGRectMake(self.toolbar.frame.origin.x, statusBarHeight, self.toolbar.frame.size.width, self.toolbar.frame.size.height);
  }
  
  self.webView.frame = viewBounds;
1152}
1153
1154// Helper function to convert hex color string to UIColor
1155// Assumes input like "#00FF00" (#RRGGBB).
1156// Taken from https://stackoverflow.com/questions/1560081/how-can-i-create-a-uicolor-from-a-hex-string
1157- (UIColor *)colorFromHexString:(NSString *)hexString {
  unsigned rgbValue = 0;
  NSScanner *scanner = [NSScanner scannerWithString:hexString];
  [scanner setScanLocation:1]; // bypass '#' character
  [scanner scanHexInt:&rgbValue];
  return [UIColor colorWithRed:((rgbValue & 0xFF0000) >> 16)/255.0 green:((rgbValue & 0xFF00) >> 8)/255.0 blue:(rgbValue & 0xFF)/255.0 alpha:1.0];
1163}
1164
1165#pragma mark WKNavigationDelegate
1166
1167- (void)webView:(WKWebView *)theWebView didStartProvisionalNavigation:(WKNavigation *)navigation{
  
  // loading url, start spinner, update back/forward
  
  self.addressLabel.text = NSLocalizedString(@"Loading...", nil);
  self.backButton.enabled = theWebView.canGoBack;
  self.forwardButton.enabled = theWebView.canGoForward;
  
  NSLog(_browserOptions.hidespinner ? @"Yes" : @"No");
  if(!_browserOptions.hidespinner) {
      [self.spinner startAnimating];
  }
  
  return [self.navigationDelegate didStartProvisionalNavigation:theWebView];
1181}
1182
1183- (void)webView:(WKWebView *)theWebView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler
1184{
  NSURL *url = navigationAction.request.URL;
  NSURL *mainDocumentURL = navigationAction.request.mainDocumentURL;
  
  BOOL isTopLevelNavigation = [url isEqual:mainDocumentURL];
  
  if (isTopLevelNavigation) {
      self.currentURL = url;
  }
  
  [self.navigationDelegate webView:theWebView decidePolicyForNavigationAction:navigationAction decisionHandler:decisionHandler];
1195}
1196
1197- (void)webView:(WKWebView *)theWebView didFinishNavigation:(WKNavigation *)navigation
1198{
  // update url, stop spinner, update back/forward
  
  self.addressLabel.text = [self.currentURL absoluteString];
  self.backButton.enabled = theWebView.canGoBack;
  self.forwardButton.enabled = theWebView.canGoForward;
  theWebView.scrollView.contentInset = UIEdgeInsetsZero;
  
  [self.spinner stopAnimating];
  
  [self.navigationDelegate didFinishNavigation:theWebView];
1209}
  
1211- (void)webView:(WKWebView*)theWebView failedNavigation:(NSString*) delegateName withError:(nonnull NSError *)error{
  // log fail message, stop spinner, update back/forward
  NSLog(@"webView:%@ - %ld: %@", delegateName, (long)error.code, [error localizedDescription]);
  
  self.backButton.enabled = theWebView.canGoBack;
  self.forwardButton.enabled = theWebView.canGoForward;
  [self.spinner stopAnimating];
  
  self.addressLabel.text = NSLocalizedString(@"Load Error", nil);
  
  [self.navigationDelegate webView:theWebView didFailNavigation:error];
1222}
1223
1224- (void)webView:(WKWebView*)theWebView didFailNavigation:(null_unspecified WKNavigation *)navigation withError:(nonnull NSError *)error
1225{
  [self webView:theWebView failedNavigation:@"didFailNavigation" withError:error];
1227}
  
1229- (void)webView:(WKWebView*)theWebView didFailProvisionalNavigation:(null_unspecified WKNavigation *)navigation withError:(nonnull NSError *)error
1230{
  [self webView:theWebView failedNavigation:@"didFailProvisionalNavigation" withError:error];
1232}
1233
1234#pragma mark WKScriptMessageHandler delegate
1235- (void)userContentController:(nonnull WKUserContentController *)userContentController didReceiveScriptMessage:(nonnull WKScriptMessage *)message {
  if (![message.name isEqualToString:IAB_BRIDGE_NAME]) {
      return;
  }
  //NSLog(@"Received script message %@", message.body);
  [self.navigationDelegate userContentController:userContentController didReceiveScriptMessage:message];
1241}
1242
1243#pragma mark CDVScreenOrientationDelegate
1244
1245- (BOOL)shouldAutorotate
1246{
  if ((self.orientationDelegate != nil) && [self.orientationDelegate respondsToSelector:@selector(shouldAutorotate)]) {
      return [self.orientationDelegate shouldAutorotate];
  }
  return YES;
1251}
1252
1253- (UIInterfaceOrientationMask)supportedInterfaceOrientations
1254{
  if ((self.orientationDelegate != nil) && [self.orientationDelegate respondsToSelector:@selector(supportedInterfaceOrientations)]) {
      return [self.orientationDelegate supportedInterfaceOrientations];
  }
  
  return 1 << UIInterfaceOrientationPortrait;
1260}
1261
1262- (void)viewWillTransitionToSize:(CGSize)size withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator
1263{
  [coordinator animateAlongsideTransition:^(id<UIViewControllerTransitionCoordinatorContext> context)
  {
      [self rePositionViews];
  } completion:^(id<UIViewControllerTransitionCoordinatorContext> context)
  {
1269
  }];
1271
  [super viewWillTransitionToSize:size withTransitionCoordinator:coordinator];
1273}
1274
1275#pragma mark UIAdaptivePresentationControllerDelegate
1276
1277- (void)presentationControllerWillDismiss:(UIPresentationController *)presentationController {
  isExiting = TRUE;
1279}
1280
1281@end //CDVWKInAppBrowserViewController
1	`/*`
2	`Licensed to the Apache Software Foundation (ASF) under one`
3	`or more contributor license agreements. See the NOTICE file`
4	`distributed with this work for additional information`
5	`regarding copyright ownership. The ASF licenses this file`
6	`to you under the Apache License, Version 2.0 (the`
7	`"License"); you may not use this file except in compliance`
8	`with the License. You may obtain a copy of the License at`
9
10	`http://www.apache.org/licenses/LICENSE-2.0`
11
12	`Unless required by applicable law or agreed to in writing,`
13	`software distributed under the License is distributed on an`
14	`"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY`
15	`KIND, either express or implied. See the License for the`
16	`specific language governing permissions and limitations`
17	`under the License.`
18	`*/`
19
20	`#import "CDVWKInAppBrowser.h"`
21
22	`#if __has_include("CDVWKProcessPoolFactory.h")`
23	`#import "CDVWKProcessPoolFactory.h"`
24	`#endif`
25
26	`#import <Cordova/CDVPluginResult.h>`
27
28	`#define kInAppBrowserTargetSelf @"_self"`
29	`#define kInAppBrowserTargetSystem @"_system"`
30	`#define kInAppBrowserTargetBlank @"_blank"`
31
32	`#define kInAppBrowserToolbarBarPositionBottom @"bottom"`
33	`#define kInAppBrowserToolbarBarPositionTop @"top"`
34
35	`#define IAB_BRIDGE_NAME @"cordova_iab"`
36
37	`#define TOOLBAR_HEIGHT 44.0`
38	`#define LOCATIONBAR_HEIGHT 21.0`
39	`#define FOOTER_HEIGHT ((TOOLBAR_HEIGHT) + (LOCATIONBAR_HEIGHT))`
40