create image model

MVMCoreUI.xcodeproj/project.pbxproj

@@ -50,6 +50,7 @@
 		9445890E2385C3F800DE9FD4 /* MultiProgressModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9445890D2385C3F800DE9FD4 /* MultiProgressModel.swift */; };
 		9445891F2385D2E900DE9FD4 /* CaretViewModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9445891E2385D2E900DE9FD4 /* CaretViewModel.swift */; };
 		944589212385D6E900DE9FD4 /* DashLineModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 944589202385D6E900DE9FD4 /* DashLineModel.swift */; };
+		944589232385DA9600DE9FD4 /* ImageViewModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 944589222385DA9500DE9FD4 /* ImageViewModel.swift */; };
 		9455B19C234F8A0400A574DB /* MVMAnimationFramework.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 9455B19B234F8A0400A574DB /* MVMAnimationFramework.framework */; };
 		946EE1BA237B66D80036751F /* ModelHelper.swift in Sources */ = {isa = PBXBuildFile; fileRef = 946EE1B9237B66D80036751F /* ModelHelper.swift */; };
 		948DB67E2326DCD90011F916 /* MultiProgress.swift in Sources */ = {isa = PBXBuildFile; fileRef = 948DB67D2326DCD90011F916 /* MultiProgress.swift */; };
@@ -268,6 +269,7 @@
 		9445890D2385C3F800DE9FD4 /* MultiProgressModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MultiProgressModel.swift; sourceTree = "<group>"; };
 		9445891E2385D2E900DE9FD4 /* CaretViewModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CaretViewModel.swift; sourceTree = "<group>"; };
 		944589202385D6E900DE9FD4 /* DashLineModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DashLineModel.swift; sourceTree = "<group>"; };
+		944589222385DA9500DE9FD4 /* ImageViewModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ImageViewModel.swift; sourceTree = "<group>"; };
 		9455B19B234F8A0400A574DB /* MVMAnimationFramework.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = MVMAnimationFramework.framework; path = ../SharedFrameworks/MVMAnimationFramework.framework; sourceTree = "<group>"; };
 		946EE1B9237B66D80036751F /* ModelHelper.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ModelHelper.swift; sourceTree = "<group>"; };
 		948DB67D2326DCD90011F916 /* MultiProgress.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MultiProgress.swift; sourceTree = "<group>"; };
@@ -816,6 +818,7 @@
 				D29DF28821E7AC2B003B2FB9 /* ViewConstrainingView.m */,
 				D282AAB9224131D100C46919 /* MFTransparentGIFView.swift */,
 				D282AAB3223FDDAE00C46919 /* MFLoadImageView.swift */,
+				944589222385DA9500DE9FD4 /* ImageViewModel.swift */,
 				D29DF2AD21E7B3A4003B2FB9 /* MFTextView.h */,
 				D29DF2AB21E7B3A4003B2FB9 /* MFTextView.m */,
 				D29DF2AC21E7B3A4003B2FB9 /* MFTextView.xib */,
@@ -1177,6 +1180,7 @@
 				01EB369223609801006832FA /* MoleculeStackModel.swift in Sources */,
 				D29DF25421E6A177003B2FB9 /* MFMdnTextField.m in Sources */,
 				D282AABA224131D100C46919 /* MFTransparentGIFView.swift in Sources */,
+				944589232385DA9600DE9FD4 /* ImageViewModel.swift in Sources */,
 				D2A514672213885800345BFB /* StandardHeaderView.swift in Sources */,
 				01EB369023609801006832FA /* ListItemModel.swift in Sources */,
 				DBEFFA04225A829700230692 /* Label.swift in Sources */,

MVMCoreUI/Atoms/Views/ImageViewModel.swift

@@ -0,0 +1,21 @@
+//
+//  ImageViewModel.swift
+//  MVMCoreUI
+//
+//  Created by Ryan on 11/20/19.
+//  Copyright © 2019 Verizon Wireless. All rights reserved.
+//
+
+import Foundation
+
+@objcMembers public class ImageViewModel: MoleculeProtocol {
+    public static var identifier: String = "imageView"
+    public var moleculeName: String
+    
+    public var image: String
+    public var accessibilityText: String?
+    public var fallbackImage: String?
+    public var imageFormat: String?
+    public var width: CGFloat?
+    public var height: CGFloat?
+}

MVMCoreUI/Atoms/Views/MFLoadImageView.swift

@@ -8,7 +8,7 @@
 
 import UIKit
 
-@objcMembers open class MFLoadImageView: ViewConstrainingView {
+@objcMembers open class MFLoadImageView: ViewConstrainingView, ModelMoleculeViewProtocol {
     public let loadingSpinner = MFLoadingSpinner(frame: .zero)
     public let imageView = MFTransparentGIFView(frame: .zero)
     public var addSizeConstraintsForAspectRatio = false
@@ -209,6 +209,31 @@ import UIKit
         }
     }
     
+    public func setWithModel(_ model: MoleculeProtocol?, _ delegateObject: MVMCoreUIDelegateObject?, _ additionalData: [String : AnyHashable]?) {
+        guard let imageModel = model as? ImageViewModel else {
+            return
+        }
+        if let accessibilityString = imageModel.accessibilityText {
+            imageView.accessibilityLabel = accessibilityString
+            imageView.accessibilityTraits = .staticText
+            imageView.isAccessibilityElement = true
+        }
+        let width = imageModel.width ?? imageWidth
+        let height = imageModel.height ?? imageHeight
+        // For smoother transitions, set constraints that we know immediately.
+        if let width = width, addSizeConstraintsForAspectRatio {
+            setWidth(width)
+        }
+        if let height = height, addSizeConstraintsForAspectRatio {
+            setHeight(height)
+        }
+        if shouldLoadImage(withName: imageModel.image, width: width, height: height) {
+            imageView.image = nil
+            imageView.animatedImage = nil
+            loadImage(withName: imageModel.image, format: imageModel.imageFormat, width: width as NSNumber?, height: height as NSNumber?, customFallbackImage: imageModel.fallbackImage)
+        }
+    }
+    
     // MARK: - MVMCoreUIMoleculeViewProtocol functions
     open override func setAsMolecule() {
         addSizeConstraintsForAspectRatio = true