Improve creation of symbols.

Author: SergioEstevao

Example/Example/EditorDemoController.swift

@@ -1135,53 +1135,65 @@ extension EditorDemoController {
  } 
 }
 
+extension UIImage {
+
+ static func systemImage(_ name: String) -> UIImage {
+ guard let image = UIImage(systemName: name) else {
+ assertionFailure("Missing system image: \(name)")
+ return UIImage()
+ }
+
+ return image
+ }
+}
+
 extension FormattingIdentifier {
 
  var iconImage: UIImage {
 
  switch(self) {
  case .media:
- return UIImage.init(systemName: "plus.circle")!
+ return UIImage.systemImage("plus.circle")
  case .p:
- return UIImage.init(systemName: "textformat.size")!
+ return UIImage.systemImage("textformat.size")
  case .bold:
- return UIImage.init(systemName: "bold")!
+ return UIImage.systemImage("bold")
  case .italic:
- return UIImage.init(systemName: "italic")!
+ return UIImage.systemImage("italic")
  case .underline:
- return UIImage.init(systemName: "underline")!
+ return UIImage.systemImage("underline")
  case .strikethrough:
- return UIImage.init(systemName: "strikethrough")!
+ return UIImage.systemImage("strikethrough")
  case .blockquote:
- return UIImage.init(systemName: "text.quote")!
+ return UIImage.systemImage("text.quote")
  case .orderedlist:
- return UIImage.init(systemName: "list.number")!
+ return UIImage.systemImage("list.number")
  case .unorderedlist:
- return UIImage.init(systemName: "list.bullet")!
+ return UIImage.systemImage("list.bullet")
  case .link:
- return UIImage.init(systemName: "link")!
+ return UIImage.systemImage("link")
  case .horizontalruler:
- return UIImage.init(systemName: "minus")!
+ return UIImage.systemImage("minus")
  case .sourcecode:
- return UIImage.init(systemName: "chevron.left.slash.chevron.right")!
+ return UIImage.systemImage("chevron.left.slash.chevron.right")
  case .more:
- return UIImage.init(systemName: "ellipsis")!
+ return UIImage.systemImage("textformat.abc.dottedunderline")
  case .header1:
- return UIImage.init(systemName: "textformat.size")!
+ return UIImage.systemImage("textformat.size")
  case .header2:
- return UIImage.init(systemName: "textformat.size")!
+ return UIImage.systemImage("textformat.size")
  case .header3:
- return UIImage.init(systemName: "textformat.size")!
+ return UIImage.systemImage("textformat.size")
  case .header4:
- return UIImage.init(systemName: "textformat.size")!
+ return UIImage.systemImage("textformat.size")
  case .header5:
- return UIImage.init(systemName: "textformat.size")!
+ return UIImage.systemImage("textformat.size")
  case .header6:
- return UIImage.init(systemName: "textformat.size")!
+ return UIImage.systemImage("textformat.size")
  case .code:
- return UIImage.init(systemName: "textbox")!
+ return UIImage.systemImage("textbox")
  default:
- return UIImage.init(systemName: "info")!
+ return UIImage.systemImage("info")
  }
  }
 

Example/Example/MediaInserter.swift

@@ -70,7 +70,7 @@ class MediaInserter
  timer.invalidate()
  let message = NSAttributedString(string: "Upload failed!", attributes: attachmentTextAttributes)
  attachment.message = message
- attachment.overlayImage = UIImage.init(systemName: "arrow.clockwise")
+ attachment.overlayImage = UIImage.systemImage("arrow.clockwise")
  }
  if progress.fractionCompleted >= 1 {
  timer.invalidate()

Example/Example/TextViewAttachmentDelegateProvider.swift

@@ -42,16 +42,15 @@ class TextViewAttachmentDelegateProvider: NSObject, TextViewAttachmentDelegate {
  return placeholderImage(for: attachment)
  }
 
- func placeholderImage(for attachment: NSTextAttachment) -> UIImage {
- let imageSize = CGSize(width:64, height:64)
+ func placeholderImage(for attachment: NSTextAttachment) -> UIImage { 
  var placeholderImage: UIImage
  switch attachment {
  case _ as ImageAttachment:
- placeholderImage = UIImage.init(systemName: "photo")!
+ placeholderImage = UIImage.systemImage("photo")
  case _ as VideoAttachment:
- placeholderImage = UIImage.init(systemName: "video")!
+ placeholderImage = UIImage.systemImage("video")
  default:
- placeholderImage = UIImage.init(systemName: "paperclip")!
+ placeholderImage = UIImage.systemImage("paperclip")
  }
  if #available(iOS 13.0, *) {
  placeholderImage = placeholderImage.withTintColor(.label)