From a533f7dd716dd8e059b0e365e72867a9b6fb77a9 Mon Sep 17 00:00:00 2001
From: Ilya Laktyushin <ilya@laktyush.in>
Date: Mon, 14 Jan 2019 01:45:39 +0400
Subject: [PATCH] Added hex string initializer for UIColor

---
 Display/ListView.swift   |  2 +-
 Display/UIKitUtils.swift | 22 ++++++++++++++++++++++
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/Display/ListView.swift b/Display/ListView.swift
index 96a3ed2bcf..1a4de39219 100644
--- a/Display/ListView.swift
+++ b/Display/ListView.swift
@@ -2349,7 +2349,7 @@ open class ListView: ASDisplayNode, UIScrollViewDelegate, UIGestureRecognizerDel
         var headerNodesTransition: (ContainedViewLayoutTransition, Bool, CGFloat) = (.immediate, false, 0.0)
         
         if let updateSizeAndInsets = updateSizeAndInsets {
-            if self.insets != updateSizeAndInsets.insets || !self.visibleSize.height.isEqual(to: updateSizeAndInsets.size.height) {
+            if self.insets != updateSizeAndInsets.insets || self.headerInsets != updateSizeAndInsets.headerInsets || !self.visibleSize.height.isEqual(to: updateSizeAndInsets.size.height) {
                 let previousVisibleSize = self.visibleSize
                 self.visibleSize = updateSizeAndInsets.size
                 
diff --git a/Display/UIKitUtils.swift b/Display/UIKitUtils.swift
index ef2b94fb27..ea820e5d37 100644
--- a/Display/UIKitUtils.swift
+++ b/Display/UIKitUtils.swift
@@ -51,6 +51,19 @@ public extension UIColor {
         self.init(red: CGFloat((argb >> 16) & 0xff) / 255.0, green: CGFloat((argb >> 8) & 0xff) / 255.0, blue: CGFloat(argb & 0xff) / 255.0, alpha: CGFloat((argb >> 24) & 0xff) / 255.0)
     }
     
+    convenience init?(hexString: String) {
+        let scanner = Scanner(string: hexString)
+        if hexString.hasPrefix("#") {
+            scanner.scanLocation = 1
+        }
+        var num: UInt32 = 0
+        if scanner.scanHexInt32(&num) {
+            self.init(rgb: num)
+        } else {
+            return nil
+        }
+    }
+    
     var alpha: CGFloat {
         var alpha: CGFloat = 0.0
         if self.getRed(nil, green: nil, blue: nil, alpha: &alpha) {
@@ -62,6 +75,15 @@ public extension UIColor {
         }
     }
     
+    var rgb: UInt32 {
+        var red: CGFloat = 0.0
+        var green: CGFloat = 0.0
+        var blue: CGFloat = 0.0
+        self.getRed(&red, green: &green, blue: &blue, alpha: nil)
+        
+        return (UInt32(red * 255.0) << 16) | (UInt32(green * 255.0) << 8) | (UInt32(blue * 255.0))
+    }
+    
     var argb: UInt32 {
         var red: CGFloat = 0.0
         var green: CGFloat = 0.0