Fix brave/brave-ios#8268: UIGraphicsBeginImageContextWithOptions caus…

…ing Intermittent crash while taking Tab Screenshot (brave/brave-ios#8269)

Sources/Brave/Extensions/UIViewExtensions.swift

@@ -14,6 +14,12 @@ extension UIView {
 
     let offset = offset ?? .zero
 
+    // Temporary check to handle _UIGraphicsBeginImageContextWithOptions zero size error
+    // Should be replaced with UIGraphicsImageRenderer
+    guard size.width > 0, size.height > 0 else {
+      return nil
+    }
+
     UIGraphicsBeginImageContextWithOptions(size, false, UIScreen.main.scale * quality)
     drawHierarchy(in: CGRect(origin: offset, size: frame.size), afterScreenUpdates: false)
     let image = UIGraphicsGetImageFromCurrentImageContext()

Sources/Favicon/BundledFaviconRenderer.swift

@@ -77,14 +77,13 @@ public class BundledFaviconRenderer {
     } else if let name = url.baseDomain, let icon = Self.bundledIcons[name] {
       bundleIcon = icon
     }
-    guard let icon = bundleIcon, let image = UIImage(contentsOfFile: icon.url) else {
+    guard let icon = bundleIcon,
+          let image = UIImage(contentsOfFile: icon.url),
+          let scaledImage = image.createScaled(CGSize(width: 40.0, height: 40.0)) else {
       return nil
     }
 
-    return (
-      image.createScaled(CGSize(width: 40.0, height: 40.0)),
-      icon.color
-    )
+    return (scaledImage, icon.color)
   }
 
   private static let multiRegionDomains = ["craigslist", "google", "amazon"]

Sources/Favicon/UIImage+FaviconRenderer.swift

@@ -49,7 +49,7 @@ extension UIImage {
       return false
     }
 
-    guard let cgImage = createScaled(CGSize(width: 48.0, height: 48.0)).cgImage else {
+    guard let cgImage = createScaled(CGSize(width: 48.0, height: 48.0))?.cgImage else {
       return false
     }
 

Sources/Onboarding/Callouts/OnboardingPlaylistView.swift

@@ -395,9 +395,9 @@ extension OnboardingPlaylistView {
         .trimmingCharacters(in: .whitespaces)
       // The icon, which is a PDF since it is multicoloured and has special alpha, needs to scale with
       // the text, so we need to create a UIImage version of it, scale that, then adjust the baseline offset
+      let addIcon = UIImage(sharedNamed: "leo.playlist.bold.add")!
       let icon = Image(
-        uiImage: UIImage(sharedNamed: "leo.playlist.bold.add")!
-          .createScaled(CGSize(width: tryItOutIconSize, height: tryItOutIconSize))
+        uiImage: addIcon.createScaled(CGSize(width: tryItOutIconSize, height: tryItOutIconSize)) ?? addIcon
       )
       let iconText = Text(icon).baselineOffset(tryItOutIconBaselineOffset)
 

Sources/Shared/Extensions/UIImageExtensions.swift

@@ -27,7 +27,11 @@ extension UIImage {
     return image
   }
 
-  public func createScaled(_ size: CGSize) -> UIImage {
+  public func createScaled(_ size: CGSize) -> UIImage? {
+    guard size.width > 0, size.height > 0 else {
+      return nil
+    }
+
     UIGraphicsBeginImageContextWithOptions(size, false, 0)
     draw(in: CGRect(size: size))
     let scaledImage = UIGraphicsGetImageFromCurrentImageContext()
@@ -59,6 +63,10 @@ extension UIImage {
   }
 
   public func textToImage(drawText text: String, textFont: UIFont? = nil, textColor: UIColor? = nil, atPoint point: CGPoint) -> UIImage? {
+    guard size.width > 0, size.height > 0 else {
+      return nil
+    }
+
     let paragraphStyle = NSMutableParagraphStyle()
     paragraphStyle.alignment = .center
 
@@ -80,6 +88,10 @@ extension UIImage {
   }
 
   public func imageWithInsets(insets: UIEdgeInsets) -> UIImage? {
+    guard size.width > 0, size.height > 0 else {
+      return nil
+    }
+
     UIGraphicsBeginImageContextWithOptions(
       CGSize(width: self.size.width + insets.left + insets.right,
              height: self.size.height + insets.top + insets.bottom), false, self.scale)