(ios) Remove fake status bar with hardcoded height to fix issues in iOS devices with a notch (#656)

* (ios) Removed fake statusbar with hardcoded height to fix issues in iOS devices with a notch

* (ios) Removed no longer needed bgToolbar

* (ios) Fixed issue with rotation in landscape mode and refactored/simplified the code

Co-authored-by: Alessandro Basso <Alessandro.Basso@PeapodDigitalLabs.com>

src/ios/CDVInAppBrowserNavigationController.m

@@ -19,8 +19,6 @@
 
 #import "CDVInAppBrowserNavigationController.h"
 
-#define    STATUSBAR_HEIGHT 20.0
-
 @implementation CDVInAppBrowserNavigationController : UINavigationController
 
 - (void) dismissViewControllerAnimated:(BOOL)flag completion:(void (^)(void))completion {
@@ -30,16 +28,6 @@
 }
 
 - (void) viewDidLoad {
-
-    CGRect statusBarFrame = [self invertFrameIfNeeded:[UIApplication sharedApplication].statusBarFrame];
-    statusBarFrame.size.height = STATUSBAR_HEIGHT;
-    // simplified from: http://stackoverflow.com/a/25669695/219684
-
-    UIToolbar* bgToolbar = [[UIToolbar alloc] initWithFrame:statusBarFrame];
-    bgToolbar.barStyle = UIBarStyleDefault;
-    [bgToolbar setAutoresizingMask:UIViewAutoresizingFlexibleWidth];
-    [self.view addSubview:bgToolbar];
-
     [super viewDidLoad];
 }
 

src/ios/CDVWKInAppBrowser.m

@@ -35,7 +35,6 @@
 #define    IAB_BRIDGE_NAME @"cordova_iab"
 
 #define    TOOLBAR_HEIGHT 44.0
-#define    STATUSBAR_HEIGHT 20.0
 #define    LOCATIONBAR_HEIGHT 21.0
 #define    FOOTER_HEIGHT ((TOOLBAR_HEIGHT) + (LOCATIONBAR_HEIGHT))
 
@@ -698,7 +697,7 @@ static CDVWKInAppBrowser* instance = nil;
 
 @synthesize currentURL;
 
-BOOL viewRenderedAtLeastOnce = FALSE;
+CGFloat lastReducedStatusBarHeight = 0.0;
 BOOL isExiting = FALSE;
 
 - (id)initWithBrowserOptions: (CDVInAppBrowserOptions*) browserOptions andSettings:(NSDictionary *)settings
@@ -896,7 +895,7 @@ BOOL isExiting = FALSE;
         [self.toolbar setItems:@[self.closeButton, flexibleSpaceButton, self.backButton, fixedSpaceButton, self.forwardButton]];
     }
     
-    self.view.backgroundColor = [UIColor grayColor];
+    self.view.backgroundColor = [UIColor clearColor];
     [self.view addSubview:self.toolbar];
     [self.view addSubview:self.addressLabel];
     [self.view addSubview:self.spinner];
@@ -1042,7 +1041,6 @@ BOOL isExiting = FALSE;
 
 - (void)viewDidLoad
 {
-    viewRenderedAtLeastOnce = FALSE;
     [super viewDidLoad];
 }
 
@@ -1103,14 +1101,6 @@ BOOL isExiting = FALSE;
 
 - (void)viewWillAppear:(BOOL)animated
 {
-    if (IsAtLeastiOSVersion(@"7.0") && !viewRenderedAtLeastOnce) {
-        viewRenderedAtLeastOnce = TRUE;
-        CGRect viewBounds = [self.webView bounds];
-        viewBounds.origin.y = STATUSBAR_HEIGHT;
-        viewBounds.size.height = viewBounds.size.height - STATUSBAR_HEIGHT;
-        self.webView.frame = viewBounds;
-        [[UIApplication sharedApplication] setStatusBarStyle:[self preferredStatusBarStyle]];
-    }
     [self rePositionViews];
     
     [super viewWillAppear:animated];
@@ -1122,16 +1112,28 @@ BOOL isExiting = FALSE;
 // change that value.
 //
 - (float) getStatusBarOffset {
-    CGRect statusBarFrame = [[UIApplication sharedApplication] statusBarFrame];
-    float statusBarOffset = IsAtLeastiOSVersion(@"7.0") ? MIN(statusBarFrame.size.width, statusBarFrame.size.height) : 0.0;
-    return statusBarOffset;
+    return (float) IsAtLeastiOSVersion(@"7.0") ? [[UIApplication sharedApplication] statusBarFrame].size.height : 0.0;
 }
 
 - (void) rePositionViews {
-    if ([_browserOptions.toolbarposition isEqualToString:kInAppBrowserToolbarBarPositionTop]) {
-        [self.webView setFrame:CGRectMake(self.webView.frame.origin.x, TOOLBAR_HEIGHT, self.webView.frame.size.width, self.webView.frame.size.height)];
-        [self.toolbar setFrame:CGRectMake(self.toolbar.frame.origin.x, [self getStatusBarOffset], self.toolbar.frame.size.width, self.toolbar.frame.size.height)];
+    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;
 }
 
 // Helper function to convert hex color string to UIColor
@@ -1242,4 +1244,27 @@ BOOL isExiting = FALSE;
     return 1 << UIInterfaceOrientationPortrait;
 }
 
+- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
+{
+    if ((self.orientationDelegate != nil) && [self.orientationDelegate respondsToSelector:@selector(shouldAutorotateToInterfaceOrientation:)]) {
+        return [self.orientationDelegate shouldAutorotateToInterfaceOrientation:interfaceOrientation];
+    }
+    
+    return YES;
+}
+
+- (void)viewWillTransitionToSize:(CGSize)size withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator
+{
+    [coordinator animateAlongsideTransition:^(id<UIViewControllerTransitionCoordinatorContext> context)
+    {
+        [self rePositionViews];
+    } completion:^(id<UIViewControllerTransitionCoordinatorContext> context)
+    {
+
+    }];
+
+    [super viewWillTransitionToSize:size withTransitionCoordinator:coordinator];
+}
+
+
 @end //CDVWKInAppBrowserViewController