ant-design-blazor/components/icon/IconService.cs
James Yeung 83ef34b5f9 feat: add component spin (#114)
* feat: add component spin

* docs: finish spin demo

* fix: re
2020-05-15 14:31:12 +08:00

55 lines
1.8 KiB
C#

using System;
using System.Collections.Concurrent;
using System.Net.Http;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Components;
namespace AntBlazor
{
public class IconService
{
private static readonly ConcurrentDictionary<string, string> _svgCache = new ConcurrentDictionary<string, string>();
private readonly HttpClient _httpClient;
public IconService(HttpClient httpClient, NavigationManager navigationManager)
{
#pragma warning disable CA1062
httpClient.BaseAddress = new Uri(navigationManager.BaseUri);
#pragma warning restore CA1062
_httpClient = httpClient;
}
public async ValueTask<string> GetIconImg(string type, string theme)
{
var iconImg = string.Empty;
if (_svgCache.TryGetValue($"{theme}-{type}", out var img))
{
iconImg = img;
}
else
{
var res = await _httpClient.GetAsync($"_content/AntBlazor/icons/{theme}/{type}.svg");
if (res.IsSuccessStatusCode)
{
iconImg = await res.Content.ReadAsStringAsync();
_svgCache.TryAdd($"{theme}-{type}", iconImg);
}
}
return iconImg;
}
public async ValueTask<string> GetIconSvg(string type, string theme, string width = "1em", string height = "1em", string fill = "currentColor")
{
var svgStyle = $"focusable=\"false\" width=\"{width}\" height=\"{height}\" fill=\"{fill}\"";
var svgImg = await GetIconImg(type, theme);
if (!string.IsNullOrEmpty(svgImg))
{
return svgImg.Insert(svgImg.IndexOf("svg", StringComparison.Ordinal) + 3, $" {svgStyle} ");
}
return svgImg;
}
}
}