tab bar selection logic

MVMCoreUI/Atomic/Molecules/HorizontalCombinationViews/TabBar.swift

@@ -73,6 +73,18 @@ import Foundation
     public func tabBar(_ tabBar: UITabBar, didSelect item: UITabBarItem) {
         Button.performButtonAction(with: model.tabs[item.tag].action, button: item, delegateObject: delegateObject, additionalData: nil)
     }
+    
+    // MARK: - TabBarProtocol
+    public func highlightTab(at index: Int) {
+        guard let newSelectedItem = items?[model.selectedTab] else { return }
+        selectedItem = newSelectedItem
+    }
+    
+    public func selectTab(at index: Int) {
+        guard let newSelectedItem = items?[model.selectedTab] else { return }
+        selectedItem = newSelectedItem
+        tabBar(self, didSelect: newSelectedItem)
+    }
 }
 
 extension UITabBarItem: MFButtonProtocol {

MVMCoreUI/Atomic/Protocols/TabBarProtocol.swift

@@ -9,5 +9,9 @@
 import Foundation
 
 @objc public protocol TabBarProtocol {
+    /// Should visually select the given tab index.
+    @objc func highlightTab(at index: Int)
     
+    /// Should select the tab index. As if the user selected it.
+    @objc func selectTab(at index: Int)
 }

MVMCoreUI/BaseControllers/ViewController.swift

@@ -8,7 +8,7 @@
 
 import UIKit
 
-@objc open class ViewController: UIViewController, MVMCoreViewControllerProtocol, MVMCoreViewManagerViewControllerProtocol, MoleculeDelegateProtocol, FormHolderProtocol, MVMCoreActionDelegateProtocol, UITextFieldDelegate, UITextViewDelegate, ObservingTextFieldDelegate {
+@objc open class ViewController: UIViewController, MVMCoreViewControllerProtocol, MVMCoreViewManagerViewControllerProtocol, MoleculeDelegateProtocol, FormHolderProtocol, MVMCoreActionDelegateProtocol, MVMCoreLoadDelegateProtocol, UITextFieldDelegate, UITextViewDelegate, ObservingTextFieldDelegate {
     @objc public var pageType: String?
     @objc public var loadObject: MVMCoreLoadObject?
     public var pageModel: MVMControllerModelProtocol?
@@ -371,6 +371,27 @@ import UIKit
         MVMCoreUILoggingHandler.shared()?.defaultLogPageState(forController: self)
     }
     
+    // MARK: - MVMCoreLoadDelegateProtocol
+    // TODO: Move this function out of here after breaking down load operation into smaller tasks and remove protocol from base.
+    open func loadFinished(_ loadObject: MVMCoreLoadObject?, loadedViewController: (UIViewController & MVMCoreViewControllerProtocol)?, error: MVMCoreErrorObject?) {
+        
+        MVMCoreUILoggingHandler.log(withDelegateLoadFinished: loadObject, loadedViewController: loadedViewController, error: error)
+        
+        // Open the support panel
+        if error == nil,
+            loadObject?.requestParameters?.openSupportPanel ?? (loadObject?.systemParametersJSON?.boolForKey(KeyOpenSupport) ?? false) == true {
+            MVMCoreUISession.sharedGlobal()?.splitViewController?.showRightPanel(animated: true)
+        }
+        
+        // Selects the tab if needed.
+        if let tab: Int = loadObject?.pageJSON?["tabBarIndex"] as? Int {
+            MVMCoreUISplitViewController.main()?.tabBar.highlightTab(at: tab)
+        } else if let tab: Int = loadObject?.requestParameters?.actionMap?["tabBarIndex"] as? Int,
+            error == nil {
+            MVMCoreUISplitViewController.main()?.tabBar.highlightTab(at: tab)
+        }
+    }
+
     // MARK: - MVMCoreActionDelegateProtocol
     open func handleOpenPage(for requestParameters: MVMCoreRequestParameters, actionInformation: [AnyHashable: Any]?, additionalData: [AnyHashable: Any]?) {
         formValidator?.addFormParams(requestParameters: requestParameters)