development: reducing code complexity with BarViews

Sources/iOS/BarView.swift

@@ -61,6 +61,13 @@ open class BarView: ControlView {
 		super.init(leftControls: leftControls, rightControls: rightControls)
 	}
 	
+    open override func layoutSubviews() {
+        super.layoutSubviews()
+        if willRenderView {
+            divider.reload()
+        }
+    }
+    
 	/**
      Prepares the view instance when intialized. When subclassing,
      it is recommended to override the prepareView method

Sources/iOS/ControlView.swift

@@ -162,8 +162,6 @@ open class ControlView: View {
 	open override func layoutSubviews() {
 		super.layoutSubviews()
 		if willRenderView {
-			layoutIfNeeded()
-			
             var lc = 0
             var rc = 0
             let l = (CGFloat(leftControls.count) * interimSpace)

Sources/iOS/Grid.swift

@@ -222,8 +222,6 @@ public class Grid {
                 return
             }
             
-            canvas.layoutIfNeeded()
-            
             if canvas != child.superview {
                 child.removeFromSuperview()
                 canvas.addSubview(child)

Sources/iOS/Layout.swift

@@ -854,7 +854,7 @@ extension Layout {
      - Parameter views: A Dictionary<String, Any> of view key / value pairs.
      - Returns: The Array<NSLayoutConstraint> instance.
      */
-	public class func constraint(format: String, options: NSLayoutFormatOptions, metrics: Dictionary<String, Any>?, views: Dictionary<String, Any>) -> [NSLayoutConstraint] {
+    public class func constraint(format: String, options: NSLayoutFormatOptions, metrics: [String: Any]?, views: [String: Any]) -> [NSLayoutConstraint] {
 		for (_, a) in views {
 			if let v = a as? UIView {
 				v.translatesAutoresizingMaskIntoConstraints = false

Sources/iOS/PageTabBarController.swift

@@ -164,8 +164,6 @@ open class PageTabBarController: RootController {
             pageTabBar.y = y
             rootViewController.view.y = 0
         }
-        
-        pageTabBar.divider.reload()
     }
     
     /**

Sources/iOS/SearchBarController.swift

@@ -69,8 +69,6 @@ open class SearchBarController: RootController {
         
         rootViewController.view.y = p
         rootViewController.view.height = view.height - p
-        
-        searchBar.divider.reload()
 	}
 	
 	/**

Sources/iOS/Snackbar.swift

@@ -77,6 +77,14 @@ open class Snackbar: BarView {
         return super.hitTest(point, with: event)
     }
     
+    open override func layoutSubviews() {
+        super.layoutSubviews()
+        if willRenderView {
+            print("RENDING", contentView)
+            textLabel.frame = contentView.bounds
+        }
+    }
+    
     /**
      Prepares the view instance when intialized. When subclassing,
      it is recommended to override the prepareView method
@@ -103,8 +111,7 @@ open class Snackbar: BarView {
         textLabel.textColor = Color.white
         textLabel.numberOfLines = 0
         
-        contentView.grid.deferred = true
-        contentView.grid.views.append(textLabel)
-        contentView.grid.deferred = false
+        contentView.backgroundColor = Color.green.base
+        contentView.addSubview(textLabel)
     }
 }

Sources/iOS/SnackbarController.swift

@@ -156,8 +156,9 @@ open class SnackbarController: RootController {
             return
         }
         
+        snackbar.width = view.width
+        snackbar.height = snackbar.intrinsicContentSize.height + snackbar.grid.layoutEdgeInsets.top + snackbar.grid.layoutEdgeInsets.bottom
         layoutSnackbar(status: snackbar.status)
-        layoutRootViewController(status: snackbar.status)
     }
     
     /**
@@ -183,26 +184,10 @@ open class SnackbarController: RootController {
      - Parameter status: A SnackbarStatus enum value.
      */
     private func layoutSnackbar(status: SnackbarStatus) {
-        let p = snackbar.intrinsicContentSize.height + snackbar.grid.layoutEdgeInsets.top + snackbar.grid.layoutEdgeInsets.bottom
-        snackbar.width = view.width
-        snackbar.height = p
         if .bottom == snackbarAlignment {
-            snackbar.y = .visible == status ? view.height - p : view.height
+            snackbar.y = .visible == status ? view.height - snackbar.height : view.height
         } else {
             snackbar.y = .visible == status ? 0 : -snackbar.height
         }
-        snackbar.divider.reload()
-    }
-    
-    /**
-     Lays out the rootViewController.
-     - Parameter status: A SnackbarStatus enum value.
-     */
-    private func layoutRootViewController(status: SnackbarStatus) {
-        guard let vc = rootViewController else {
-            return
-        }
-        
-        vc.view.frame = view.bounds
     }
 }

Sources/iOS/TabBar.swift

@@ -57,54 +57,10 @@ public protocol TabBarDelegate {
     optional func tabBarDidSelectButton(tabBar: TabBar, button: UIButton)
 }
 
-open class TabBar: View {
+open class TabBar: BarView {
     /// A boolean indicating if the TabBar line is in an animation state.
     open internal(set) var isAnimating = false
     
-    /// Will render the view.
-	open var willRenderView: Bool {
-		return 0 < width && 0 < height && nil != superview
-	}
-    
-    /// A preset wrapper around contentInset.
-    open var contentEdgeInsetsPreset: EdgeInsetsPreset {
-        get {
-            return grid.contentEdgeInsetsPreset
-        }
-        set(value) {
-            grid.contentEdgeInsetsPreset = value
-        }
-    }
-    
-    /// A wrapper around grid.contentInset.
-    @IBInspectable
-    open var contentInset: EdgeInsets {
-        get {
-            return grid.contentEdgeInsets
-        }
-        set(value) {
-            grid.contentEdgeInsets = value
-        }
-    }
-    
-    /// A preset wrapper around interimSpace.
-    open var interimSpacePreset = InterimSpacePreset.none {
-        didSet {
-            interimSpace = InterimSpacePresetToValue(preset: interimSpacePreset)
-        }
-    }
-    
-    /// A wrapper around grid.interimSpace.
-    @IBInspectable
-    open var interimSpace: InterimSpace {
-        get {
-            return grid.interimSpace
-        }
-        set(value) {
-            grid.interimSpace = value
-        }
-    }
-    
     /// A delegation reference.
     open weak var delegate: TabBarDelegate?
     
@@ -171,9 +127,6 @@ open class TabBar: View {
         }
     }
     
-    /// Layer Reference.
-    open internal(set) var divider: Divider!
-    
     open override func layoutSubviews() {
 		super.layoutSubviews()
 		if willRenderView {
@@ -195,7 +148,6 @@ open class TabBar: View {
                 
                 line.frame = CGRect(x: selected!.x, y: .bottom == lineAlignment ? height - lineHeight : 0, width: selected!.width, height: lineHeight)
             }
-            divider.reload()
 		}
 	}
 	
@@ -268,7 +220,6 @@ open class TabBar: View {
     
     /// Prepares the divider.
     private func prepareDivider() {
-        divider = Divider(view: self)
         divider.alignment = .top
     }
     

Sources/iOS/ToolbarController.swift

@@ -172,8 +172,6 @@ open class ToolbarController: RootController {
         
         rootViewController.view.y = p
         rootViewController.view.height = view.height - p
-        
-        toolbar.divider.reload()
 	}
 	
 	/**