Add unread indicator.

// FREEBIE

Signal/src/UIView+OWS.h

@@ -44,6 +44,17 @@ CGFloat ScaleFromIPhone5(CGFloat iPhone5Value);
 - (void)setCompressionResistanceVerticalLow;
 - (void)setCompressionResistanceVerticalHigh;
 
+#pragma mark - Manual Layout
+
+- (CGFloat)left;
+- (CGFloat)right;
+- (CGFloat)top;
+- (CGFloat)bottom;
+- (CGFloat)width;
+- (CGFloat)height;
+
+- (void)centerOnSuperview;
+
 #pragma mark - Debugging
 
 - (void)addBorderWithColor:(UIColor *)color;

Signal/src/UIView+OWS.m

@@ -131,6 +131,47 @@ CGFloat ScaleFromIPhone5(CGFloat iPhone5Value)
     [self setContentCompressionResistancePriority:UILayoutPriorityRequired forAxis:UILayoutConstraintAxisVertical];
 }
 
+#pragma mark - Manual Layout
+
+- (CGFloat)left
+{
+    return self.frame.origin.x;
+}
+
+- (CGFloat)right
+{
+    return self.frame.origin.x + self.frame.size.width;
+}
+
+- (CGFloat)top
+{
+    return self.frame.origin.y;
+}
+
+- (CGFloat)bottom
+{
+    return self.frame.origin.x + self.frame.size.height;
+}
+
+- (CGFloat)width
+{
+    return self.frame.size.width;
+}
+
+- (CGFloat)height
+{
+    return self.frame.size.height;
+}
+
+- (void)centerOnSuperview
+{
+    self.frame = CGRectMake(
+        round(self.superview.bounds.origin.x + (self.superview.bounds.size.width - self.frame.size.width) * 0.5f),
+        round(self.superview.bounds.origin.y + (self.superview.bounds.size.height - self.frame.size.height) * 0.5f),
+        self.frame.size.width,
+        self.frame.size.height);
+}
+
 #pragma mark - Debugging
 
 - (void)addBorderWithColor:(UIColor *)color

Signal/src/views/OWSUnreadIndicatorCell.m

@@ -6,6 +6,7 @@
 #import "OWSBezierPathView.h"
 #import "UIColor+OWS.h"
 #import "UIFont+OWS.h"
+#import "UIView+OWS.h"
 #import <JSQMessagesViewController/UIView+JSQMessages.h>
 
 @interface OWSUnreadIndicatorCell ()
@@ -62,16 +63,10 @@
 
 - (void)layoutSubviews
 {
-    CGSize labelSize = [self.label sizeThatFits:CGSizeZero];
-    self.label.frame = CGRectMake(round(self.bounds.origin.x + (self.bounds.size.width - labelSize.width) * 0.5f),
-        round(self.bounds.origin.y + (self.bounds.size.height - labelSize.height) * 0.5f),
-        labelSize.width,
-        labelSize.height);
-    self.leftPathView.frame = CGRectMake(0, 0, self.label.frame.origin.x, self.bounds.size.height);
-    self.rightPathView.frame = CGRectMake(self.label.frame.origin.x + self.label.frame.size.width,
-        0,
-        self.bounds.size.width - (self.label.frame.origin.x + self.label.frame.size.width),
-        self.bounds.size.height);
+    [self.label sizeToFit];
+    [self.label centerOnSuperview];
+    self.leftPathView.frame = CGRectMake(0, 0, self.label.left, self.height);
+    self.rightPathView.frame = CGRectMake(self.label.right, 0, self.width - self.label.right, self.height);
 }
 
 @end