container testing

MVMCoreUI.xcodeproj/project.pbxproj

@@ -47,6 +47,7 @@
 		D22D1F47220496A30077CEC0 /* MVMCoreUISwitch.m in Sources */ = {isa = PBXBuildFile; fileRef = D22D1F45220496A30077CEC0 /* MVMCoreUISwitch.m */; };
 		D22D1F562204CE5D0077CEC0 /* MVMCoreUIStackableViewController.h in Headers */ = {isa = PBXBuildFile; fileRef = D22D1F542204CE5D0077CEC0 /* MVMCoreUIStackableViewController.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		D22D1F572204CE5D0077CEC0 /* MVMCoreUIStackableViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = D22D1F552204CE5D0077CEC0 /* MVMCoreUIStackableViewController.m */; };
+		D243859923A16B1800332775 /* Container.swift in Sources */ = {isa = PBXBuildFile; fileRef = D243859823A16B1800332775 /* Container.swift */; };
 		D260D7B122D65BDD007E7233 /* MVMCoreUIPageControl.h in Headers */ = {isa = PBXBuildFile; fileRef = D260D7AF22D65BDD007E7233 /* MVMCoreUIPageControl.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		D260D7B222D65BDD007E7233 /* MVMCoreUIPageControl.m in Sources */ = {isa = PBXBuildFile; fileRef = D260D7B022D65BDD007E7233 /* MVMCoreUIPageControl.m */; };
 		D260D7B622D68514007E7233 /* MVMCoreUIPagingProtocol.h in Headers */ = {isa = PBXBuildFile; fileRef = D260D7B522D68509007E7233 /* MVMCoreUIPagingProtocol.h */; settings = {ATTRIBUTES = (Public, ); }; };
@@ -245,6 +246,7 @@
 		D22D1F45220496A30077CEC0 /* MVMCoreUISwitch.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = MVMCoreUISwitch.m; sourceTree = "<group>"; };
 		D22D1F542204CE5D0077CEC0 /* MVMCoreUIStackableViewController.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = MVMCoreUIStackableViewController.h; sourceTree = "<group>"; };
 		D22D1F552204CE5D0077CEC0 /* MVMCoreUIStackableViewController.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = MVMCoreUIStackableViewController.m; sourceTree = "<group>"; };
+		D243859823A16B1800332775 /* Container.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Container.swift; sourceTree = "<group>"; };
 		D260D7AF22D65BDD007E7233 /* MVMCoreUIPageControl.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = MVMCoreUIPageControl.h; sourceTree = "<group>"; };
 		D260D7B022D65BDD007E7233 /* MVMCoreUIPageControl.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = MVMCoreUIPageControl.m; sourceTree = "<group>"; };
 		D260D7B522D68509007E7233 /* MVMCoreUIPagingProtocol.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = MVMCoreUIPagingProtocol.h; sourceTree = "<group>"; };
@@ -669,6 +671,7 @@
 				D29DF2B721E7BE79003B2FB9 /* TabBarController */,
 				D29DF2B621E7BE66003B2FB9 /* SplitViewController */,
 				D2B18B93236214AD00A9AEDC /* NavigationController.swift */,
+				D243859823A16B1800332775 /* Container.swift */,
 			);
 			path = Containers;
 			sourceTree = "<group>";
@@ -1146,6 +1149,7 @@
 				D27CD4102339057800C1DC07 /* EyebrowHeadlineBodyLink.swift in Sources */,
 				D29DF11D21E684A9003B2FB9 /* MVMCoreUISplitViewController.m in Sources */,
 				0198F79F225679880066C936 /* FormValidationProtocol.swift in Sources */,
+				D243859923A16B1800332775 /* Container.swift in Sources */,
 				D29DF29821E7ADB8003B2FB9 /* MFScrollingViewController.m in Sources */,
 				D29770C821F7C4AE00B2F0D0 /* TopLabelsView.m in Sources */,
 				D2E1FADF2268B8E700AEFD8C /* ThreeLayerTableViewController.swift in Sources */,

MVMCoreUI/Containers/Container.swift

@@ -0,0 +1,197 @@
+//
+//  Container.swift
+//  MVMCoreUI
+//
+//  Created by Scott Pfeil on 12/11/19.
+//  Copyright © 2019 Verizon Wireless. All rights reserved.
+//
+
+import UIKit
+
+protocol ContainerModelProtocol {
+    var horizontalAlignment: UIStackView.Alignment { get set }
+    var verticalAlignment: UIStackView.Alignment { get set }
+}
+
+class ContainerHelper: NSObject {
+    var leftConstraint: NSLayoutConstraint?
+    var topConstraint: NSLayoutConstraint?
+    var bottomConstraint: NSLayoutConstraint?
+    var rightConstraint: NSLayoutConstraint?
+    
+    var alignCenterHorizontalConstraint: NSLayoutConstraint?
+    var alignCenterLeftConstraint: NSLayoutConstraint?
+    var alignCenterRightConstraint: NSLayoutConstraint?
+    
+    var alignCenterVerticalConstraint: NSLayoutConstraint?
+    var alignCenterTopConstraint: NSLayoutConstraint?
+    var alignCenterBottomConstraint: NSLayoutConstraint?
+
+    var leftLowConstraint: NSLayoutConstraint?
+    var topLowConstraint: NSLayoutConstraint?
+    var bottomLowConstraint: NSLayoutConstraint?
+    var rightLowConstraint: NSLayoutConstraint?
+    
+    func constrainView(_ view: UIView) {
+        guard let margins = view.superview?.layoutMarginsGuide else { return }
+        leftConstraint = view.leftAnchor.constraint(equalTo: margins.leftAnchor)
+        leftConstraint?.isActive = true
+        
+        topConstraint = view.topAnchor.constraint(equalTo: margins.topAnchor)
+        topConstraint?.isActive = true
+        
+        rightConstraint = margins.rightAnchor.constraint(equalTo: view.rightAnchor)
+        rightConstraint?.isActive = true
+        
+        bottomConstraint = margins.bottomAnchor.constraint(equalTo: view.bottomAnchor)
+        bottomConstraint?.isActive = true
+        
+        alignCenterHorizontalConstraint = view.centerXAnchor.constraint(equalTo: margins.centerXAnchor)
+        alignCenterLeftConstraint = view.leftAnchor.constraint(greaterThanOrEqualTo: margins.leftAnchor)
+        alignCenterRightConstraint = margins.rightAnchor.constraint(greaterThanOrEqualTo: view.rightAnchor)
+
+        alignCenterVerticalConstraint = view.centerYAnchor.constraint(equalTo: margins.centerYAnchor)
+        alignCenterTopConstraint = view.topAnchor.constraint(greaterThanOrEqualTo: margins.topAnchor)
+        alignCenterBottomConstraint = margins.bottomAnchor.constraint(greaterThanOrEqualTo: view.bottomAnchor)
+        
+        leftLowConstraint = view.leftAnchor.constraint(equalTo: margins.leftAnchor)
+        leftLowConstraint?.priority = UILayoutPriority(rawValue: 200)
+        leftLowConstraint?.isActive = true
+        
+        topLowConstraint = view.topAnchor.constraint(equalTo: margins.topAnchor)
+        topLowConstraint?.priority = UILayoutPriority(rawValue: 200)
+        topLowConstraint?.isActive = true
+        
+        rightLowConstraint = margins.rightAnchor.constraint(equalTo: view.rightAnchor)
+        rightLowConstraint?.priority = UILayoutPriority(rawValue: 200)
+        rightLowConstraint?.isActive = true
+        
+        bottomLowConstraint = margins.bottomAnchor.constraint(equalTo: view.bottomAnchor)
+        bottomLowConstraint?.priority = UILayoutPriority(rawValue: 200)
+        bottomLowConstraint?.isActive = true
+        
+        setAccessibility(view)
+    }
+    
+    func setAccessibility(_ view: UIView) {
+        guard let superView = view.superview else { return }
+        superView.isAccessibilityElement = false
+        if let elements = view.accessibilityElements {
+            superView.accessibilityElements = elements
+        } else {
+            superView.accessibilityElements = [view]
+        }
+    }
+    
+    func alignHorizontal(_ alignment: UIStackView.Alignment) {
+        switch alignment {
+        case .center:
+            alignCenterHorizontalConstraint?.isActive = true
+            alignCenterLeftConstraint?.isActive = true
+            alignCenterRightConstraint?.isActive = true
+            leftConstraint?.isActive = false
+            rightConstraint?.isActive = false
+        case .leading:
+            alignCenterHorizontalConstraint?.isActive = false
+            alignCenterLeftConstraint?.isActive = false
+            alignCenterRightConstraint?.isActive = true
+            leftConstraint?.isActive = true
+            rightConstraint?.isActive = false
+        case .trailing:
+            alignCenterHorizontalConstraint?.isActive = false
+            alignCenterLeftConstraint?.isActive = true
+            alignCenterRightConstraint?.isActive = false
+            leftConstraint?.isActive = false
+            rightConstraint?.isActive = true
+        case .fill:
+            alignCenterHorizontalConstraint?.isActive = false
+            alignCenterLeftConstraint?.isActive = false
+            alignCenterRightConstraint?.isActive = false
+            leftConstraint?.isActive = true
+            rightConstraint?.isActive = true
+        default: break
+        }
+    }
+ 
+    func alignVertical(_ alignment: UIStackView.Alignment) {
+        switch alignment {
+        case .center:
+            alignCenterVerticalConstraint?.isActive = true
+            alignCenterTopConstraint?.isActive = true
+            alignCenterBottomConstraint?.isActive = true
+            topConstraint?.isActive = false
+            bottomConstraint?.isActive = false
+        case .leading:
+            alignCenterVerticalConstraint?.isActive = false
+            alignCenterTopConstraint?.isActive = false
+            alignCenterBottomConstraint?.isActive = true
+            topConstraint?.isActive = true
+            bottomConstraint?.isActive = false
+        case .trailing:
+            alignCenterVerticalConstraint?.isActive = false
+            alignCenterTopConstraint?.isActive = true
+            alignCenterBottomConstraint?.isActive = false
+            topConstraint?.isActive = false
+            bottomConstraint?.isActive = true
+        case .fill:
+            alignCenterVerticalConstraint?.isActive = false
+            alignCenterTopConstraint?.isActive = false
+            alignCenterBottomConstraint?.isActive = false
+            topConstraint?.isActive = true
+            bottomConstraint?.isActive = true
+        default: break
+        }
+    }
+    
+    func set(with model: ContainerModelProtocol) {
+        alignHorizontal(model.horizontalAlignment)
+        alignVertical(model.verticalAlignment)
+    }
+    
+    static func getAlignment(for string: String) -> UIStackView.Alignment? {
+        switch string {
+        case "leading":
+            return .leading
+        case "trailing":
+            return .trailing
+        case "center":
+            return .center
+        case "fill":
+            return .fill
+        default:
+            return nil
+        }
+    }
+}
+
+class Container: View {
+    var model: ContainerModelProtocol?
+    var view: UIView?
+    let containerHelper = ContainerHelper()
+}
+
+// MARK: - MVMCoreViewProtocol
+extension Container {
+    open override func updateView(_ size: CGFloat) {
+        super.updateView(size)
+        (view as? MVMCoreViewProtocol)?.updateView(size)
+        MFStyler.setMarginsFor(self, size: size, defaultHorizontal: true, top: 0, bottom: 0)
+    }
+        
+    /// Will be called only once.
+    open override func setupView() {
+        super.setupView()
+        backgroundColor = .clear
+    }
+}
+
+// MARK: - MVMCoreUIMoleculeViewProtocol
+extension Container {
+    override func setWithJSON(_ json: [AnyHashable : Any]?, delegateObject: MVMCoreUIDelegateObject?, additionalData: [AnyHashable : Any]?) {
+        if let horizontalAlignmentString = json?.optionalStringForKey("horizontalAlignment"), let alignment = ContainerHelper.getAlignment(for: horizontalAlignmentString) {
+            containerHelper.alignHorizontal(alignment)
+        } else if let alignment = (view as? MVMCoreUIViewConstrainingProtocol)?.horizontalAlignment {
+            containerHelper.alignHorizontal(alignment)
+        }
+    }
+}

MVMCoreUI/OtherHandlers/MVMCoreUIViewConstrainingProtocol.h

@@ -16,7 +16,13 @@
 - (BOOL)needsToBeConstrained;
 
 /// The alignment if constrained.
-- (UIStackViewAlignment)alignment;
+- (UIStackViewAlignment)alignment __deprecated;
+
+/// The alignment if constrained.
+- (UIStackViewAlignment)horizontalAlignment;
+
+/// The alignment if constrained.
+- (UIStackViewAlignment)verticalAlignment;
 
 /// Can be used to override any standard constraints that may be added.
 - (BOOL)useStandardConstraints;