381 lines
16 KiB
C#
381 lines
16 KiB
C#
using System;
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using Newtonsoft.Json.Linq;
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using System.Globalization;
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using Umbraco.Core;
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using Umbraco.Core.Models;
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using Umbraco.Core.Models.PublishedContent;
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using Umbraco.Core.PropertyEditors.ValueConverters;
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using Umbraco.Web.Models;
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using Umbraco.Core.Media;
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namespace Umbraco.Web
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{
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public static class ImageCropperTemplateCoreExtensions
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{
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/// <summary>
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/// Gets the ImageProcessor Url by the crop alias (from the "umbracoFile" property alias) on the IPublishedContent item
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/// </summary>
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/// <param name="mediaItem">
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/// The IPublishedContent item.
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/// </param>
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/// <param name="cropAlias">
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/// The crop alias e.g. thumbnail
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/// </param>
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/// <returns>
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/// The ImageProcessor.Web Url.
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/// </returns>
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public static string GetCropUrl(this IPublishedContent mediaItem, string cropAlias, IImageUrlGenerator imageUrlGenerator)
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{
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return mediaItem.GetCropUrl(imageUrlGenerator, cropAlias: cropAlias, useCropDimensions: true);
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}
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/// <summary>
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/// Gets the ImageProcessor Url by the crop alias using the specified property containing the image cropper Json data on the IPublishedContent item.
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/// </summary>
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/// <param name="mediaItem">
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/// The IPublishedContent item.
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/// </param>
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/// <param name="propertyAlias">
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/// The property alias of the property containing the Json data e.g. umbracoFile
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/// </param>
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/// <param name="cropAlias">
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/// The crop alias e.g. thumbnail
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/// </param>
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/// <returns>
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/// The ImageProcessor.Web Url.
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/// </returns>
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public static string GetCropUrl(this IPublishedContent mediaItem, string propertyAlias, string cropAlias, IImageUrlGenerator imageUrlGenerator)
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{
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return mediaItem.GetCropUrl(imageUrlGenerator, propertyAlias: propertyAlias, cropAlias: cropAlias, useCropDimensions: true);
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}
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/// <summary>
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/// Gets the ImageProcessor Url from the IPublishedContent item.
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/// </summary>
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/// <param name="mediaItem">
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/// The IPublishedContent item.
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/// </param>
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/// <param name="width">
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/// The width of the output image.
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/// </param>
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/// <param name="height">
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/// The height of the output image.
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/// </param>
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/// <param name="propertyAlias">
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/// Property alias of the property containing the Json data.
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/// </param>
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/// <param name="cropAlias">
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/// The crop alias.
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/// </param>
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/// <param name="quality">
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/// Quality percentage of the output image.
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/// </param>
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/// <param name="imageCropMode">
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/// The image crop mode.
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/// </param>
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/// <param name="imageCropAnchor">
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/// The image crop anchor.
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/// </param>
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/// <param name="preferFocalPoint">
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/// Use focal point, to generate an output image using the focal point instead of the predefined crop
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/// </param>
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/// <param name="useCropDimensions">
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/// Use crop dimensions to have the output image sized according to the predefined crop sizes, this will override the width and height parameters.
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/// </param>
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/// <param name="cacheBuster">
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/// Add a serialized date of the last edit of the item to ensure client cache refresh when updated
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/// </param>
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/// <param name="furtherOptions">
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/// These are any query string parameters (formatted as query strings) that ImageProcessor supports. For example:
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/// <example>
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/// <![CDATA[
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/// furtherOptions: "&bgcolor=fff"
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/// ]]>
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/// </example>
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/// </param>
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/// <param name="ratioMode">
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/// Use a dimension as a ratio
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/// </param>
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/// <param name="upScale">
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/// If the image should be upscaled to requested dimensions
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/// </param>
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/// <returns>
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/// The <see cref="string"/>.
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/// </returns>
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public static string GetCropUrl(
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this IPublishedContent mediaItem,
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IImageUrlGenerator imageUrlGenerator,
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int? width = null,
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int? height = null,
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string propertyAlias = Constants.Conventions.Media.File,
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string cropAlias = null,
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int? quality = null,
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ImageCropMode? imageCropMode = null,
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ImageCropAnchor? imageCropAnchor = null,
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bool preferFocalPoint = false,
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bool useCropDimensions = false,
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bool cacheBuster = true,
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string furtherOptions = null,
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ImageCropRatioMode? ratioMode = null,
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bool upScale = true)
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{
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if (mediaItem == null) throw new ArgumentNullException("mediaItem");
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var cacheBusterValue = cacheBuster ? mediaItem.UpdateDate.ToFileTimeUtc().ToString(CultureInfo.InvariantCulture) : null;
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if (mediaItem.HasProperty(propertyAlias) == false || mediaItem.HasValue(propertyAlias) == false)
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return string.Empty;
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var mediaItemUrl = mediaItem.MediaUrl(propertyAlias: propertyAlias);
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//get the default obj from the value converter
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var cropperValue = mediaItem.Value(propertyAlias);
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//is it strongly typed?
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var stronglyTyped = cropperValue as ImageCropperValue;
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if (stronglyTyped != null)
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{
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return GetCropUrl(
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mediaItemUrl, imageUrlGenerator, stronglyTyped, width, height, cropAlias, quality, imageCropMode, imageCropAnchor, preferFocalPoint, useCropDimensions,
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cacheBusterValue, furtherOptions, ratioMode, upScale);
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}
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//this shouldn't be the case but we'll check
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var jobj = cropperValue as JObject;
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if (jobj != null)
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{
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stronglyTyped = jobj.ToObject<ImageCropperValue>();
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return GetCropUrl(
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mediaItemUrl, imageUrlGenerator, stronglyTyped, width, height, cropAlias, quality, imageCropMode, imageCropAnchor, preferFocalPoint, useCropDimensions,
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cacheBusterValue, furtherOptions, ratioMode, upScale);
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}
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//it's a single string
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return GetCropUrl(
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mediaItemUrl, imageUrlGenerator, width, height, mediaItemUrl, cropAlias, quality, imageCropMode, imageCropAnchor, preferFocalPoint, useCropDimensions,
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cacheBusterValue, furtherOptions, ratioMode, upScale);
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}
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/// <summary>
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/// Gets the ImageProcessor Url from the image path.
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/// </summary>
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/// <param name="imageUrl">
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/// The image url.
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/// </param>
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/// <param name="width">
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/// The width of the output image.
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/// </param>
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/// <param name="height">
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/// The height of the output image.
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/// </param>
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/// <param name="imageCropperValue">
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/// The Json data from the Umbraco Core Image Cropper property editor
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/// </param>
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/// <param name="cropAlias">
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/// The crop alias.
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/// </param>
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/// <param name="quality">
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/// Quality percentage of the output image.
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/// </param>
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/// <param name="imageCropMode">
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/// The image crop mode.
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/// </param>
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/// <param name="imageCropAnchor">
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/// The image crop anchor.
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/// </param>
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/// <param name="preferFocalPoint">
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/// Use focal point to generate an output image using the focal point instead of the predefined crop if there is one
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/// </param>
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/// <param name="useCropDimensions">
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/// Use crop dimensions to have the output image sized according to the predefined crop sizes, this will override the width and height parameters
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/// </param>
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/// <param name="cacheBusterValue">
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/// Add a serialized date of the last edit of the item to ensure client cache refresh when updated
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/// </param>
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/// <param name="furtherOptions">
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/// These are any query string parameters (formatted as query strings) that ImageProcessor supports. For example:
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/// <example>
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/// <![CDATA[
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/// furtherOptions: "&bgcolor=fff"
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/// ]]>
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/// </example>
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/// </param>
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/// <param name="ratioMode">
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/// Use a dimension as a ratio
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/// </param>
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/// <param name="upScale">
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/// If the image should be upscaled to requested dimensions
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/// </param>
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/// <returns>
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/// The <see cref="string"/>.
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/// </returns>
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public static string GetCropUrl(
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this string imageUrl,
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IImageUrlGenerator imageUrlGenerator,
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int? width = null,
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int? height = null,
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string imageCropperValue = null,
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string cropAlias = null,
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int? quality = null,
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ImageCropMode? imageCropMode = null,
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ImageCropAnchor? imageCropAnchor = null,
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bool preferFocalPoint = false,
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bool useCropDimensions = false,
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string cacheBusterValue = null,
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string furtherOptions = null,
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ImageCropRatioMode? ratioMode = null,
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bool upScale = true)
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{
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if (string.IsNullOrEmpty(imageUrl)) return string.Empty;
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ImageCropperValue cropDataSet = null;
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if (string.IsNullOrEmpty(imageCropperValue) == false && imageCropperValue.DetectIsJson() && (imageCropMode == ImageCropMode.Crop || imageCropMode == null))
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{
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cropDataSet = imageCropperValue.DeserializeImageCropperValue();
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}
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return GetCropUrl(
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imageUrl, imageUrlGenerator, cropDataSet, width, height, cropAlias, quality, imageCropMode,
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imageCropAnchor, preferFocalPoint, useCropDimensions, cacheBusterValue, furtherOptions, ratioMode, upScale);
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}
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/// <summary>
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/// Gets the ImageProcessor Url from the image path.
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/// </summary>
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/// <param name="imageUrl">
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/// The image url.
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/// </param>
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/// <param name="imageUrlGenerator">
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/// The generator that will process all the options and the image URL to return a full image urls with all processing options appended
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/// </param>
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/// <param name="cropDataSet"></param>
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/// <param name="width">
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/// The width of the output image.
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/// </param>
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/// <param name="height">
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/// The height of the output image.
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/// </param>
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/// <param name="cropAlias">
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/// The crop alias.
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/// </param>
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/// <param name="quality">
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/// Quality percentage of the output image.
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/// </param>
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/// <param name="imageCropMode">
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/// The image crop mode.
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/// </param>
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/// <param name="imageCropAnchor">
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/// The image crop anchor.
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/// </param>
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/// <param name="preferFocalPoint">
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/// Use focal point to generate an output image using the focal point instead of the predefined crop if there is one
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/// </param>
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/// <param name="useCropDimensions">
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/// Use crop dimensions to have the output image sized according to the predefined crop sizes, this will override the width and height parameters
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/// </param>
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/// <param name="cacheBusterValue">
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/// Add a serialized date of the last edit of the item to ensure client cache refresh when updated
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/// </param>
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/// <param name="furtherOptions">
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/// These are any query string parameters (formatted as query strings) that ImageProcessor supports. For example:
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/// <example>
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/// <![CDATA[
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/// furtherOptions: "&bgcolor=fff"
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/// ]]>
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/// </example>
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/// </param>
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/// <param name="ratioMode">
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/// Use a dimension as a ratio
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/// </param>
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/// <param name="upScale">
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/// If the image should be upscaled to requested dimensions
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/// </param>
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/// <returns>
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/// The <see cref="string"/>.
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/// </returns>
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public static string GetCropUrl(
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this string imageUrl,
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IImageUrlGenerator imageUrlGenerator,
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ImageCropperValue cropDataSet,
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int? width = null,
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int? height = null,
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string cropAlias = null,
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int? quality = null,
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ImageCropMode? imageCropMode = null,
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ImageCropAnchor? imageCropAnchor = null,
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bool preferFocalPoint = false,
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bool useCropDimensions = false,
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string cacheBusterValue = null,
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string furtherOptions = null,
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ImageCropRatioMode? ratioMode = null,
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bool upScale = true,
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string animationProcessMode = null)
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{
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if (string.IsNullOrEmpty(imageUrl)) return string.Empty;
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ImageUrlGenerationOptions options;
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if (cropDataSet != null && (imageCropMode == ImageCropMode.Crop || imageCropMode == null))
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{
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var crop = cropDataSet.GetCrop(cropAlias);
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// if a crop was specified, but not found, return null
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if (crop == null && !string.IsNullOrWhiteSpace(cropAlias))
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return null;
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options = cropDataSet.GetCropBaseOptions(imageUrl, crop, string.IsNullOrWhiteSpace(cropAlias), preferFocalPoint);
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if (crop != null & useCropDimensions)
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{
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width = crop.Width;
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height = crop.Height;
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}
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// If a predefined crop has been specified & there are no coordinates & no ratio mode, but a width parameter has been passed we can get the crop ratio for the height
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if (crop != null && string.IsNullOrEmpty(cropAlias) == false && crop.Coordinates == null && ratioMode == null && width != null && height == null)
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{
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options.HeightRatio = (decimal)crop.Height / crop.Width;
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}
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// If a predefined crop has been specified & there are no coordinates & no ratio mode, but a height parameter has been passed we can get the crop ratio for the width
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if (crop != null && string.IsNullOrEmpty(cropAlias) == false && crop.Coordinates == null && ratioMode == null && width == null && height != null)
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{
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options.WidthRatio = (decimal)crop.Width / crop.Height;
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}
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}
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else
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{
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options = new ImageUrlGenerationOptions (imageUrl)
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{
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ImageCropMode = (imageCropMode ?? ImageCropMode.Pad),
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ImageCropAnchor = imageCropAnchor
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};
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}
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options.Quality = quality;
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options.Width = ratioMode != null && ratioMode.Value == ImageCropRatioMode.Width ? null : width;
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options.Height = ratioMode != null && ratioMode.Value == ImageCropRatioMode.Height ? null : height;
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options.AnimationProcessMode = animationProcessMode;
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if (ratioMode == ImageCropRatioMode.Width && height != null)
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{
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// if only height specified then assume a square
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if (width == null) width = height;
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options.WidthRatio = (decimal)width / (decimal)height;
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}
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if (ratioMode == ImageCropRatioMode.Height && width != null)
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{
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// if only width specified then assume a square
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if (height == null) height = width;
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options.HeightRatio = (decimal)height / (decimal)width;
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}
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options.UpScale = upScale;
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options.FurtherOptions = furtherOptions;
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options.CacheBusterValue = cacheBusterValue;
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return imageUrlGenerator.GetImageUrl(options);
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}
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}
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}
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