split handlenewdata from updateUI. refactor behavior constuction. molecule iteration bug fixes. removing AnyObject requirement from ParentMoleculeProtocol.

MVMCoreUI.xcodeproj/project.pbxproj

@@ -382,7 +382,7 @@
 		D23A8FEE26122F7D007E14CE /* VisibleBehaviorForVideo.swift in Sources */ = {isa = PBXBuildFile; fileRef = D23A8FED26122F7D007E14CE /* VisibleBehaviorForVideo.swift */; };
 		D23A8FF82612308D007E14CE /* PageBehaviorProtocolRequirer.swift in Sources */ = {isa = PBXBuildFile; fileRef = D23A8FF72612308D007E14CE /* PageBehaviorProtocolRequirer.swift */; };
 		D23A8FFB26123189007E14CE /* PageBehaviorModelProtocol.swift in Sources */ = {isa = PBXBuildFile; fileRef = D23A8FFA26123189007E14CE /* PageBehaviorModelProtocol.swift */; };
-		D23A90002612347A007E14CE /* PageBehaviorHandlerModelProtocol.swift in Sources */ = {isa = PBXBuildFile; fileRef = D23A8FFF2612347A007E14CE /* PageBehaviorHandlerModelProtocol.swift */; };
+		D23A90002612347A007E14CE /* PageBehaviorConatinerModelProtocol.swift in Sources */ = {isa = PBXBuildFile; fileRef = D23A8FFF2612347A007E14CE /* PageBehaviorConatinerModelProtocol.swift */; };
 		D23A9004261234CE007E14CE /* PageBehaviorHandlerProtocol.swift in Sources */ = {isa = PBXBuildFile; fileRef = D23A9003261234CE007E14CE /* PageBehaviorHandlerProtocol.swift */; };
 		D23A900926125FFB007E14CE /* GetContactBehavior.swift in Sources */ = {isa = PBXBuildFile; fileRef = D23A900826125FFB007E14CE /* GetContactBehavior.swift */; };
 		D23A90682614B0B4007E14CE /* CoreUIModelMapping.swift in Sources */ = {isa = PBXBuildFile; fileRef = D23A90672614B0B4007E14CE /* CoreUIModelMapping.swift */; };
@@ -969,7 +969,7 @@
 		D23A8FED26122F7D007E14CE /* VisibleBehaviorForVideo.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = VisibleBehaviorForVideo.swift; sourceTree = "<group>"; };
 		D23A8FF72612308D007E14CE /* PageBehaviorProtocolRequirer.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PageBehaviorProtocolRequirer.swift; sourceTree = "<group>"; };
 		D23A8FFA26123189007E14CE /* PageBehaviorModelProtocol.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PageBehaviorModelProtocol.swift; sourceTree = "<group>"; };
-		D23A8FFF2612347A007E14CE /* PageBehaviorHandlerModelProtocol.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PageBehaviorHandlerModelProtocol.swift; sourceTree = "<group>"; };
+		D23A8FFF2612347A007E14CE /* PageBehaviorConatinerModelProtocol.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PageBehaviorConatinerModelProtocol.swift; sourceTree = "<group>"; };
 		D23A9003261234CE007E14CE /* PageBehaviorHandlerProtocol.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PageBehaviorHandlerProtocol.swift; sourceTree = "<group>"; };
 		D23A900826125FFB007E14CE /* GetContactBehavior.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = GetContactBehavior.swift; sourceTree = "<group>"; };
 		D23A90672614B0B4007E14CE /* CoreUIModelMapping.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CoreUIModelMapping.swift; sourceTree = "<group>"; };
@@ -1202,10 +1202,10 @@
 				D2E2A9A023E095AB000B42E6 /* ButtonModelProtocol.swift */,
 				014AA72323C501E2006F3E93 /* ContainerModelProtocol.swift */,
 				D23EA7FA2475F09800D60C34 /* CarouselItemProtocol.swift */,
+				01EB3683236097C0006832FA /* MoleculeModelProtocol.swift */,
 				012A88C3238D86E600FE3DA1 /* CarouselItemModelProtocol.swift */,
 				012A88B0238C880100FE3DA1 /* CarouselPagingModelProtocol.swift */,
 				EA05EFAA278DE53600828819 /* ClearableModelProtocol.swift */,
-				01EB3683236097C0006832FA /* MoleculeModelProtocol.swift */,
 				012A889B23889E8400FE3DA1 /* TemplateModelProtocol.swift */,
 				D28A837823C7D5BC00DFE4FC /* PageModelProtocol.swift */,
 				011B58EF23A2AA980085F53C /* ListItemModelProtocol.swift */,
@@ -1321,7 +1321,7 @@
 			children = (
 				D23A8FF72612308D007E14CE /* PageBehaviorProtocolRequirer.swift */,
 				D23A8FFA26123189007E14CE /* PageBehaviorModelProtocol.swift */,
-				D23A8FFF2612347A007E14CE /* PageBehaviorHandlerModelProtocol.swift */,
+				D23A8FFF2612347A007E14CE /* PageBehaviorConatinerModelProtocol.swift */,
 				D23A9003261234CE007E14CE /* PageBehaviorHandlerProtocol.swift */,
 				27F973522466074500CAB5C5 /* PageBehaviorProtocol.swift */,
 			);
@@ -2720,7 +2720,7 @@
 				01EB369423609801006832FA /* HeadlineBodyModel.swift in Sources */,
 				D2A92884241ACB25004E01C6 /* ProgrammaticScrollViewController.swift in Sources */,
 				EA985C3E2970938F00F2FF2E /* Tilelet.swift in Sources */,
-				D23A90002612347A007E14CE /* PageBehaviorHandlerModelProtocol.swift in Sources */,
+				D23A90002612347A007E14CE /* PageBehaviorConatinerModelProtocol.swift in Sources */,
 				EAA78020290081320057DFDF /* VDSMoleculeViewProtocol.swift in Sources */,
 				0A21DB7F235DECC500C160A2 /* EntryField.swift in Sources */,
 				D2E2A99F23E07F8A000B42E6 /* PillButton.swift in Sources */,

MVMCoreUI/Atomic/Molecules/OtherContainers/MoleculeContainerProtocol.swift

@@ -12,13 +12,15 @@ public protocol MoleculeContainerModelProtocol: ContainerModelProtocol, ParentMo
 }
 
 public extension MoleculeContainerModelProtocol {
-
+    
     var children: [MoleculeModelProtocol] {
         return [molecule]
     }
+}
+
+public extension MoleculeContainerModelProtocol where Self: AnyObject {
     
-    func replaceMolecule(with replacementMolecule: MoleculeModelProtocol) throws -> Bool {
+    mutating func replaceMolecule(with replacementMolecule: MoleculeModelProtocol) throws -> Bool {
         return try replaceChildMolecule(at: &molecule, with: replacementMolecule)
     }
-
 }

MVMCoreUI/Atomic/Organisms/StackModelProtocol.swift

@@ -16,11 +16,12 @@ public protocol StackModelProtocol: ParentMoleculeModelProtocol {
 }
 
 extension StackModelProtocol {
-    
     public var children: [MoleculeModelProtocol] { return molecules }
+}
+
+extension StackModelProtocol where Self: AnyObject {
     
-    public func replaceChildMolecule(with molecule: MoleculeModelProtocol) throws -> Bool  {
+    public mutating func replaceChildMolecule(with molecule: MoleculeModelProtocol) throws -> Bool  {
         return try replaceChildMolecule(in: &molecules, with: molecule)
     }
-    
 }

MVMCoreUI/Atomic/Protocols/ModelProtocols/MoleculeModelProtocol.swift

@@ -68,8 +68,13 @@ public extension Array where Element == MoleculeModelProtocol {
     }
     
     func depthFirstTraverse(options: TreeTraversalOptions, depth: Int, onVisit: (Int, MoleculeModelProtocol, inout Bool) -> Void) {
-        forEach { (molecule) in
+        var shouldStop = false
-            molecule.depthFirstTraverse(options: options, depth: depth, onVisit: onVisit)
+        for molecule in self {
+            molecule.depthFirstTraverse(options: options, depth: depth) { depth, molecule, stop in
+                onVisit(depth, molecule, &shouldStop)
+                stop = shouldStop
+            }
+            if shouldStop { break }
         }
     }
 }

MVMCoreUI/Atomic/Protocols/ModelProtocols/ParentMoleculeModelProtocol.swift

@@ -8,15 +8,15 @@
 
 import Foundation
 
-public protocol ParentModelProtocol: MoleculeTreeTraversalProtocol, AnyObject {
+public protocol ParentModelProtocol: MoleculeTreeTraversalProtocol {
     
     var children: [MoleculeModelProtocol] { get }
     
     /// Method for replacing surface level children. (Does not recurse.)
-    func replaceChildMolecule(with molecule: MoleculeModelProtocol) throws -> Bool
+    mutating func replaceChildMolecule(with molecule: MoleculeModelProtocol) throws -> Bool
 }
 
-public extension ParentModelProtocol {
+public extension ParentModelProtocol where Self: AnyObject {
     
     /// Top level test to replace child molecules. Each parent molecule should attempt to replace.
     func replaceChildMolecule(with molecule: MoleculeModelProtocol) throws -> Bool { return false }

MVMCoreUI/Atomic/Protocols/ModelProtocols/TemplateModelProtocol.swift

@@ -37,9 +37,12 @@ public extension TemplateModelProtocol {
     func depthFirstTraverse(options: TreeTraversalOptions, depth: Int, onVisit: (Int, MoleculeModelProtocol, inout Bool) -> Void) {
         return rootMolecules.depthFirstTraverse(options: options, depth: depth, onVisit: onVisit)
     }
+}
+
+extension TemplateModelProtocol {
     
     /// Recursively finds and replaces the first child matching the replacement molecule id property.
-    func replaceMolecule(with replacementMolecule: MoleculeModelProtocol) throws -> Bool {
+    mutating func replaceMolecule(with replacementMolecule: MoleculeModelProtocol) throws -> Bool {
         // Attempt root level replacement on the template model first.
         if try replaceChildMolecule(with: replacementMolecule) {
             return true
@@ -49,7 +52,7 @@ public extension TemplateModelProtocol {
         var possibleError: Error?
         // Dive into each root thereafter.
         depthFirstTraverse(options: .parentFirst, depth: 0) { depth, molecule, stop in
-            guard let parentMolecule = molecule as? ParentMoleculeModelProtocol else { return }
+            guard var parentMolecule = molecule as? ParentMoleculeModelProtocol else { return }
             do {
                 didReplaceMolecule =  try parentMolecule.replaceChildMolecule(with: replacementMolecule)
             } catch {

MVMCoreUI/Atomic/Protocols/TemplateProtocol.swift

@@ -8,7 +8,7 @@
 
 import Foundation
 
-public protocol TemplateProtocol: AnyObject, PageProtocol {
+public protocol TemplateProtocol: AnyObject, PageProtocol{
     associatedtype TemplateModel: TemplateModelProtocol
     var templateModel: TemplateModel? { get set }
     
@@ -28,25 +28,26 @@ public extension TemplateProtocol {
         }
     }
     
+    func decodeTemplate(using decoder: JSONDecoder, from data: Data) throws -> TemplateModel {
+        try decoder.decode(TemplateModel.self, from: data)
+    }
+}
+
+public extension TemplateProtocol where Self: PageBehaviorHandlerProtocol, Self: MVMCoreViewControllerProtocol {
+    
     /// Helper function to do common parsing logic.
     func parseTemplate(json: [AnyHashable: Any]?) throws {
         guard let pageJSON = json else { return }
-        let delegateObject = (self as? MVMCoreViewControllerProtocol)?.delegateObject?() as? MVMCoreUIDelegateObject
+        let delegateObject = delegateObject?() as? MVMCoreUIDelegateObject
         let data = try JSONSerialization.data(withJSONObject: pageJSON)
         let decoder = JSONDecoder.create(with: delegateObject)
         templateModel = try decodeTemplate(using: decoder, from: data)
         
         // Add additional required behaviors if applicable.
-        guard var behaviorHandlerModel = templateModel as? TemplateModelProtocol & PageBehaviorHandlerModelProtocol,
+        guard var pageBehaviorsModel = templateModel as? TemplateModelProtocol & PageBehaviorConatinerModelProtocol else  { return }
-              var behaviorHandler = self as? PageBehaviorHandlerProtocol else { return }
+        
-        behaviorHandlerModel.traverseAndAddRequiredBehaviors()
+        pageBehaviorsModel.traverseAndAddRequiredBehaviors()
-        behaviorHandler.createBehaviors(for: behaviorHandlerModel, delegateObject: delegateObject)
+        var behaviorHandler = self
-        if let viewController = self as? UIViewController {
+        behaviorHandler.applyBehaviors(pageBehaviorModel: pageBehaviorsModel, delegateObject: delegateObject)
-            MVMCoreUISession.sharedGlobal()?.applyGlobalBehaviors(to: viewController)
-        }
-    }
-    
-    func decodeTemplate(using decoder: JSONDecoder, from data: Data) throws -> TemplateModel {
-        try decoder.decode(TemplateModel.self, from: data)
     }
 }

MVMCoreUI/Atomic/Templates/CollectionTemplate.swift

@@ -80,12 +80,12 @@
     }
     
     
-    open override func handleNewData() {
+    open override func updateUI() {
         topViewOutsideOfScrollArea = templateModel?.anchorHeader ?? false
         bottomViewOutsideOfScrollArea = templateModel?.anchorFooter ?? false
         setup()
         registerCells()        
-        super.handleNewData()
+        super.updateUI()
     }
     
     //--------------------------------------------------

MVMCoreUI/Atomic/Templates/ModalSectionListTemplate.swift

@@ -21,8 +21,8 @@ open class ModalSectionListTemplate: SectionListTemplate {
     // MARK: - Lifecycle
     //--------------------------------------------------
     
-    override open func handleNewData() {
+    override open func updateUI() {
-        super.handleNewData()
+        super.updateUI()
         _ = MVMCoreUICommonViewsUtility.addCloseButton(to: view, action: { [weak self] _ in
             guard let self = self else { return }
             let closeAction = (self.templateModel as? ModalSectionListTemplateModel)?.closeAction ??

MVMCoreUI/Atomic/Templates/MoleculeListTemplate.swift

@@ -81,12 +81,12 @@ open class MoleculeListTemplate: ThreeLayerTableViewController, TemplateProtocol
         return molecule
     }
     
-    open override func handleNewData() {
+    open override func updateUI() {
         topViewOutsideOfScrollArea = templateModel?.anchorHeader ?? false
         bottomViewOutsideOfScrollArea = templateModel?.anchorFooter ?? false
         setup()
         registerWithTable()
-        super.handleNewData()
+        super.updateUI()
     }
     
     open override func viewDidAppear(_ animated: Bool) {
@@ -300,7 +300,7 @@ open class MoleculeListTemplate: ThreeLayerTableViewController, TemplateProtocol
 }
 
 extension MoleculeListTemplate: MoleculeListProtocol {
-    open func removeMolecules(at indexPaths: [IndexPath], animation: UITableView.RowAnimation?) {
+    public func removeMolecules(at indexPaths: [IndexPath], animation: UITableView.RowAnimation?) {
         for (index, indexPath) in indexPaths.sorted().enumerated() {
             let removeIndex = indexPath.row - index
             moleculesInfo?.remove(at: removeIndex)
@@ -313,7 +313,7 @@ extension MoleculeListTemplate: MoleculeListProtocol {
         view.layoutIfNeeded()
     }
     
-    open func addMolecules(_ molecules: [ListItemModelProtocol & MoleculeModelProtocol], indexPath: IndexPath, animation: UITableView.RowAnimation?) {
+    public func addMolecules(_ molecules: [ListItemModelProtocol & MoleculeModelProtocol], indexPath: IndexPath, animation: UITableView.RowAnimation?) {
         var indexPaths: [IndexPath] = []
 
         for molecule in molecules {
@@ -332,7 +332,7 @@ extension MoleculeListTemplate: MoleculeListProtocol {
         self.view.layoutIfNeeded()
     }
     
-    open func getIndexPath(for molecule: ListItemModelProtocol & MoleculeModelProtocol) -> IndexPath? {
+    public func getIndexPath(for molecule: ListItemModelProtocol & MoleculeModelProtocol) -> IndexPath? {
         guard let index = moleculesInfo?.firstIndex(where: { (moleculeInfo) -> Bool in
             return equal(moleculeA: molecule, moleculeB: moleculeInfo.molecule)
         }) else { return nil }

MVMCoreUI/Atomic/Templates/ThreeLayerFillMiddleTemplate.swift

@@ -26,8 +26,8 @@
         }
     }
     
-    open override func handleNewData() {
+    open override func updateUI() {
-        super.handleNewData()
+        super.updateUI()
         heightConstraint?.isActive = true
     }
 }

MVMCoreUI/Atomic/Templates/ThreeLayerTemplate.swift

@@ -19,10 +19,10 @@ import UIKit
         try super.parsePageJSON()
     }
     
-    open override func handleNewData() {
+    open override func updateUI() {
         topViewOutsideOfScroll = templateModel?.anchorHeader ?? false
         bottomViewOutsideOfScroll = templateModel?.anchorFooter ?? false
-        super.handleNewData()
+        super.updateUI()
     }
 
     open override func viewForTop() -> UIView? {

MVMCoreUI/BaseControllers/MVMControllerModelProtocol.swift

@@ -9,6 +9,6 @@
 
 import Foundation
 
-public protocol MVMControllerModelProtocol: TemplateModelProtocol, FormHolderModelProtocol, PageBehaviorHandlerModelProtocol {
+public protocol MVMControllerModelProtocol: TemplateModelProtocol, FormHolderModelProtocol, PageBehaviorConatinerModelProtocol {
 
 }

MVMCoreUI/BaseControllers/ScrollingViewController.swift

@@ -63,8 +63,8 @@ open class ScrollingViewController: ViewController {
         registerForKeyboardNotifications()
     }
     
-    open override func handleNewData() {
+    open override func updateUI() {
-        super.handleNewData()
+        super.updateUI()
         // will change scrollView indicatorStyle automatically on the basis of backgroundColor
         var greyScale: CGFloat = 0
         if view.backgroundColor?.getWhite(&greyScale, alpha: nil) ?? false {

MVMCoreUI/BaseControllers/ThreeLayerCollectionViewController.swift

@@ -108,8 +108,8 @@ import Foundation
         }
     }
 
-    open override func handleNewData() {
+    open override func updateUI() {
-        super.handleNewData()
+        super.updateUI()
         topView?.removeFromSuperview()
         bottomView?.removeFromSuperview()
         topView = viewForTop()

MVMCoreUI/BaseControllers/ThreeLayerTableViewController.swift

@@ -50,8 +50,8 @@ open class ThreeLayerTableViewController: ProgrammaticTableViewController {
         tableView.reloadData()
     }
     
-    open override func handleNewData() {
+    open override func updateUI() {
-        super.handleNewData()
+        super.updateUI()
         createViewForTableHeader()
         createViewForTableFooter()
         tableView?.reloadData()

MVMCoreUI/BaseControllers/ThreeLayerViewController.swift

@@ -49,8 +49,8 @@ open class ThreeLayerViewController: ProgrammaticScrollViewController {
         }
     }
     
-    open override func handleNewData() {
+    open override func updateUI() {
-        super.handleNewData()
+        super.updateUI()
 
         // Removes the views
         topView?.removeFromSuperview()

MVMCoreUI/BaseControllers/ViewController.swift

@@ -111,9 +111,12 @@ import MVMCore
         guard newData else { return }
         
         do {
+            // TODO: Parse parsePageJSON modifies the page model on a different thread than
+            // the UI update which could cause discrepancies. Parse should return the resulting
+            // object and assignment should be synchronized on handleNewData(model: ).
             try parsePageJSON()
             MVMCoreDispatchUtility.performBlock(onMainThread: {
-                self.handleNewDataAndUpdateUI()
+                self.handleNewData()
             })
         } catch {
             if let coreError = MVMCoreErrorObject.createErrorObject(for: error, location: "updateJSON for pageType: \(String(describing: pageType))") {
@@ -160,7 +163,7 @@ import MVMCore
             }
             return false
         }
-    
+        
         return true
     }
     
@@ -229,9 +232,12 @@ import MVMCore
         return true
     }
     
-    /// Calls processNewData and then sets the ui to update with updateView
+    @MainActor
-    open func handleNewDataAndUpdateUI() {
+    open func updateUI() {
-        handleNewData()
+        if let backgroundColor = model?.backgroundColor {
+            view.backgroundColor = backgroundColor.uiColor
+        }
+        
         needsUpdateUI = true
         view.setNeedsLayout()
     }
@@ -244,6 +250,7 @@ import MVMCore
     }
     
     /// Processes any new data. Called after the page is loaded the first time and on response updates for this page,
+    @MainActor
     open func handleNewData() {
         if model?.navigationBar == nil {
             let navigationItem = createDefaultLegacyNavigationModel()
@@ -259,12 +266,10 @@ import MVMCore
             formValidator = FormValidator(rules)
         }
         
-        if let backgroundColor = model?.backgroundColor {
-            view.backgroundColor = backgroundColor.uiColor
-        }
-        
         // Notify the manager of new data
         manager?.newDataReceived?(in: self)
+        
+        updateUI()
     }
     
     public func generateMoleculeView(from model: MoleculeModelProtocol) -> MoleculeViewProtocol? {
@@ -333,7 +338,7 @@ import MVMCore
             initialLoad()
         }
         
-        handleNewDataAndUpdateUI()
+        handleNewData()
     }
     
     open override func viewDidLayoutSubviews() {

MVMCoreUI/Behaviors/GetContactBehavior.swift

@@ -43,7 +43,7 @@ public class PageGetContactBehavior: PageVisibilityBehavior {
             MVMCoreDispatchUtility.performBlock(onMainThread: {
                 // TODO: move to protocol function instead
                 guard let controller = self?.delegate?.moleculeDelegate as? ViewController else { return }
-                controller.handleNewDataAndUpdateUI()
+                controller.handleNewData()
             })
         }
     }

MVMCoreUI/Behaviors/GetNotificationAuthStatusBehavior.swift

@@ -45,11 +45,12 @@ public class GetNotificationAuthStatusBehavior: PageVisibilityBehavior {
             for consumer in consumers {
                 consumer.consume(notificationStatus: settings.authorizationStatus)
             }
-            // Tell template to update
+            
-            MVMCoreDispatchUtility.performBlock(onMainThread: {
+            Task {
+                // Tell template to update
                 guard let controller = self.delegate?.moleculeDelegate as? ViewController else { return }
-                controller.handleNewDataAndUpdateUI()
+                await controller.handleNewData()
-            })
+            }
         }
     }
     

MVMCoreUI/Behaviors/Protocols/PageBehaviorConatinerModelProtocol.swift

@@ -1,16 +1,17 @@
 //
-//  PageBehaviorHandlerModelProtocol.swift
+//  PageBehaviorConatinerModelProtocol.swift
 //  MVMCoreUI
 //
 //  Created by Scott Pfeil on 3/29/21.
 //  Copyright © 2021 Verizon Wireless. All rights reserved.
 //
 
-public protocol PageBehaviorHandlerModelProtocol {
+/// Protocol applied to a model that contains a list of behavior models.
+public protocol PageBehaviorConatinerModelProtocol {
     var behaviors: [PageBehaviorModelProtocol]? { get set }
 }
 
-public extension PageBehaviorHandlerModelProtocol {
+public extension PageBehaviorConatinerModelProtocol {
     
     /// Adds the behavior model to the behaviors if possible.
     mutating func add(behavior: PageBehaviorModelProtocol) {
@@ -24,7 +25,7 @@ public extension PageBehaviorHandlerModelProtocol {
     }
 }
 
-public extension PageBehaviorHandlerModelProtocol where Self: MoleculeTreeTraversalProtocol {
+public extension PageBehaviorConatinerModelProtocol where Self: MoleculeTreeTraversalProtocol {
     
     /// Traverses all models and adds any required behavior models.
     mutating func traverseAndAddRequiredBehaviors() {

MVMCoreUI/Behaviors/Protocols/PageBehaviorHandlerProtocol.swift

@@ -12,20 +12,10 @@ public protocol PageBehaviorHandlerProtocol {
 }
 
 public extension PageBehaviorHandlerProtocol {
+    
     /// Creates the behaviors and sets the variable.
-    mutating func createBehaviors(for model: PageBehaviorHandlerModelProtocol, delegateObject: MVMCoreUIDelegateObject?) {
+    func createBehaviors(for behaviorModels: [PageBehaviorModelProtocol], delegateObject: MVMCoreUIDelegateObject?) -> [PageBehaviorProtocol] {
-        
+        var behaviors = [PageBehaviorProtocol]()
-        behaviors = behaviors?.filter { $0.transcendsPageUpdates }
-        if behaviors?.isEmpty ?? false {
-            behaviors = nil
-        }
-        
-        guard let behaviorModels = model.behaviors else {
-            return
-        }
-        
-        var behaviors: [PageBehaviorProtocol] = behaviors ?? []
-        
         for behaviorModel in behaviorModels {
             do {
                 let handlerType = try ModelRegistry.getHandler(behaviorModel) as! PageBehaviorProtocol.Type
@@ -37,7 +27,23 @@ public extension PageBehaviorHandlerProtocol {
                 }
             }
         }
+        return behaviors
+    }
+    
+    mutating func applyBehaviors(pageBehaviorModel: PageBehaviorConatinerModelProtocol, delegateObject: MVMCoreUIDelegateObject?) {
+        // Pull the existing behaviors.
+        var behaviors = (behaviors ?? []).filter { $0.transcendsPageUpdates }
+        // Create and append any new behaviors based on the incoming models.
+        let newBehaviors = createBehaviors(for: pageBehaviorModel.behaviors ?? [], delegateObject: delegateObject)
+        behaviors.append(contentsOf: newBehaviors)
+        
+        // Apply them to the page.
         self.behaviors = behaviors.count > 0 ? behaviors : nil
+        
+        // Ask the session to apply any more. (Curently inverted contol due to Swift <--> Obj-C conflict.
+        if let viewController = self as? UIViewController {
+            MVMCoreUISession.sharedGlobal()?.applyGlobalBehaviors(to: viewController)
+        }
     }
     
     /// Executes all behaviors of type.
@@ -49,3 +55,11 @@ public extension PageBehaviorHandlerProtocol {
         return try behaviors?.compactMap({$0 as? T}).allSatisfy({ return try behaviourBlock($0) }) ?? true
     }
 }
+
+public extension PageBehaviorHandlerProtocol where Self: MVMCoreViewControllerProtocol {
+    
+    mutating func applyBehaviors(pageBehaviorModel: PageBehaviorConatinerModelProtocol) {
+        applyBehaviors(pageBehaviorModel: pageBehaviorModel, delegateObject: delegateObject?() as? MVMCoreUIDelegateObject)
+    }
+    
+}

MVMCoreUI/Behaviors/Protocols/PageBehaviorProtocol.swift

@@ -86,8 +86,8 @@ public protocol PageCustomActionHandlerBehavior: PageBehaviorProtocol {
 }
 
 public extension MVMCoreUIDelegateObject {
-    var behaviorModelDelegate: PageBehaviorHandlerModelProtocol? {
+    var behaviorModelDelegate: PageBehaviorConatinerModelProtocol? {
-        (moleculeDelegate as? PageProtocol)?.pageModel as? PageBehaviorHandlerModelProtocol
+        (moleculeDelegate as? PageProtocol)?.pageModel as? PageBehaviorConatinerModelProtocol
     }
     
     weak var behaviorTemplateDelegate: (PageBehaviorHandlerProtocol & NSObjectProtocol)? {

MVMCoreUI/Behaviors/ReplacementMoleculeBehavior.swift

@@ -24,7 +24,7 @@ public class ReplaceableMoleculeBehavior: PageMoleculeTransformationBehavior {
     
     public func onPageNew(rootMolecules: [MoleculeModelProtocol], _ delegateObject: MVMCoreUIDelegateObject?) {
         
-        guard let templateModel = delegateObject?.moleculeDelegate?.getTemplateModel() else { return }
+        guard var templateModel = delegateObject?.moleculeDelegate?.getTemplateModel() else { return }
         
         templateModel.printMolecules()