Merge pull request #44 from AndyBoot/updates/our-img

<our-img> TagHelper

Author: Warren Buckley

Our.Umbraco.TagHelpers/Classes/OurImageSize.cs

@@ -0,0 +1,25 @@
+using Our.Umbraco.TagHelpers.Enums;
+
+namespace Our.Umbraco.TagHelpers.Classes
+{
+    internal class OurImageSize
+    {
+        public OurImageSize() { }
+        public OurImageSize(OurScreenSize screenSize, int imageWidth, string? cropAlias = null)
+        {
+            ScreenSize = screenSize;
+            ImageWidth = imageWidth;
+            CropAlias = cropAlias;
+        }
+        public OurImageSize(OurScreenSize screenSize, int imageWidth, int imageHeight)
+        {
+            ScreenSize = screenSize;
+            ImageWidth = imageWidth;
+            ImageHeight = imageHeight;
+        }
+        public OurScreenSize ScreenSize { get; set; }
+        public int ImageWidth { get; set; }
+        public int ImageHeight { get; set; }
+        public string? CropAlias { get; set; }
+    }
+}

Our.Umbraco.TagHelpers/Configuration/OurUmbracoTagHelpersConfiguration.cs

@@ -1,8 +1,11 @@
-namespace Our.Umbraco.TagHelpers.Configuration
+using Our.Umbraco.TagHelpers.Enums;
+
+namespace Our.Umbraco.TagHelpers.Configuration
 {
     public class OurUmbracoTagHelpersConfiguration
     {
         public InlineSvgTagHelperConfiguration OurSVG { get; set; } = new InlineSvgTagHelperConfiguration();
+		public ImgTagHelperConfiguration OurImg { get; set; } = new ImgTagHelperConfiguration();
     }
 
     public class InlineSvgTagHelperConfiguration
@@ -11,4 +14,47 @@ public class InlineSvgTagHelperConfiguration
         public bool Cache { get; set; } = false;
         public int CacheMinutes { get; set; } = 180;
     }
+    
+	public class ImgTagHelperConfiguration
+    {
+        /// <summary>
+        /// Define the typical responsive breakpoints (S,M,L,XL,XXL) in which your website uses during screen resize
+        /// </summary>
+        public MediaQuerySizes MediaQueries { get; set; } = new MediaQuerySizes();
+		
+        /// <summary>
+        /// If true, let the browser handle image lazy loading, otherwise disable to use a 3rd party JavaScript based library
+        /// </summary>
+        public bool UseNativeLazyLoading { get; set; } = true;
+		
+        /// <summary>
+        /// Applicable if UseNativeLazyLoading is false
+        /// </summary>
+        public string LazyLoadCssClass { get; set; } = "lazyload";
+		
+        /// <summary>
+        /// Applicable if UseNativeLazyLoading is false
+        /// </summary>
+        public ImagePlaceholderType LazyLoadPlaceholder { get; set; } = ImagePlaceholderType.SVG;
+		
+        /// <summary>
+        /// Applicable if UseNativeLazyLoading is false & LazyLoadPlaceholder is LowQualityImage
+        /// </summary>
+        public int LazyLoadPlaceholderLowQualityImageQuality { get; set; } = 5; 
+        public bool ApplyAspectRatio { get; set; } = false;
+        public bool MobileFirst { get; set; } = true;
+
+        /// <summary>
+        /// The property alias of the media type containing the alternative text value.
+        /// </summary>
+        public string AlternativeTextMediaTypePropertyAlias { get; set; } = "alternativeText";
+    }
+    public class MediaQuerySizes
+    {
+        public int Small { get; set; } = 576;
+        public int Medium { get; set; } = 768;
+        public int Large { get; set; } = 992;
+        public int ExtraLarge { get; set; } = 1200;
+        public int ExtraExtraLarge { get; set; } = 1400;
+    }
 }

Our.Umbraco.TagHelpers/Enums/ImagePlaceholderType.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Our.Umbraco.TagHelpers.Enums
+{
+    public enum ImagePlaceholderType
+    {
+        SVG,
+        LowQualityImage
+    }
+}

Our.Umbraco.TagHelpers/Enums/OurScreenSize.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Our.Umbraco.TagHelpers.Enums
+{
+    public enum OurScreenSize
+    {
+        Small = 100,
+        Medium = 200,
+        Large = 300,
+        ExtraLarge = 400,
+        ExtraExtraLarge = 500
+    }
+}