Uppercase the placeholder when active

Sources/iOS/TextField.swift

@@ -80,6 +80,8 @@ open class TextField: UITextField {
         }
     }
     
+    open var uppercasePlaceholder: Bool = false
+    
     /// A boolean indicating whether the text is empty.
     open var isEmpty: Bool {
         return 0 == text?.utf16.count
@@ -382,8 +384,7 @@ open class TextField: UITextField {
 	}
 	
     open override func becomeFirstResponder() -> Bool {
-        setNeedsLayout()
-        layoutIfNeeded()
+        layoutSubviews()
         return super.becomeFirstResponder()
     }
     
@@ -507,7 +508,7 @@ extension TextField {
     /// Layout the detailLabel.
     fileprivate func layoutDetailLabel() {
         let c = dividerContentEdgeInsets
-        detailLabel.height = detailLabel.sizeThatFits(CGSize(width: width, height: .greatestFiniteMagnitude)).height
+        detailLabel.height = detailLabel.sizeThatFits(CGSize(width: width, height: CGFloat.greatestFiniteMagnitude)).height
         detailLabel.x = c.left
         detailLabel.y = height + detailVerticalOffset
         detailLabel.width = width - c.left - c.right
@@ -633,7 +634,9 @@ extension TextField {
             guard let s = self else {
                 return
             }
-            
+            if self?.uppercasePlaceholder ?? false {
+                s.placeholderLabel.text = s.placeholderLabel.text?.uppercased()
+            }
             s.placeholderLabel.transform = CGAffineTransform(scaleX: 0.75, y: 0.75)
             
             switch s.textAlignment {
@@ -669,7 +672,9 @@ extension TextField {
             guard let s = self else {
                 return
             }
-            
+            if self?.uppercasePlaceholder ?? false {
+                s.placeholderLabel.text = s.placeholderLabel.text?.capitalized
+            }
             s.placeholderLabel.transform = CGAffineTransform.identity
             s.placeholderLabel.x = s.leftViewWidth
             s.placeholderLabel.y = 0