99 lines
3.3 KiB
Plaintext
99 lines
3.3 KiB
Plaintext
@namespace WtmBlazorUtils
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@inherits WTComponent
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@inject WtmBlazorContext WtmBlazor
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@using System.Threading;
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@using System.Linq.Expressions;
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@using System.IO;
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@typeparam TValue
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<ButtonUpload @ref="uploader" Value="Value" ValueExpression="ValueExpression" ValueChanged="ValueChanged" Accept="*/*" IsSingle="true" ShowProgress="true" OnChange="@OnAvatarUpload" OnDelete="@OnAvatarDelete" DisplayText="@LabelText" DefaultFileList="@dlist"></ButtonUpload>
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@code{
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[Parameter]
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public int? ThumbWidth { get; set; }
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[Parameter]
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public int? ThumbHeight { get; set; }
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[Parameter]
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public TValue Value { get; set; }
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[Parameter]
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public EventCallback<TValue> ValueChanged { get; set; }
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[Parameter]
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public Expression<Func<TValue>> ValueExpression { get; set; }
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[Parameter]
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public string LabelText { get; set; }
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private Dictionary<string, string> files { get; set; } = new Dictionary<string, string>();
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private List<UploadFile> dlist = new List<UploadFile>();
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private ButtonUpload<TValue> uploader { get; set; }
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protected TValue CurrentValue
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{
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get => Value;
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set
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{
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var hasChanged = !EqualityComparer<TValue>.Default.Equals(value, Value);
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if (hasChanged)
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{
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Value = value;
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_ = ValueChanged.InvokeAsync(value);
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}
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}
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}
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private async Task OnAvatarUpload(UploadFile file)
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{
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bool suc = false;
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if (file != null && file.File != null)
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{
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byte[] filedata = await GetFileData(file.File);
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var rv = await WtmBlazor.Api.CallAPI<DynamicData>("/api/_file/Upload", HttpMethodEnum.POST, null, filedata, file.File.Name);
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if (rv.StatusCode == System.Net.HttpStatusCode.OK)
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{
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var idstr = files.Select(x => x.Key);
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foreach (var id in idstr)
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{
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_ = await WtmBlazor.Api.CallAPI($"/api/_file/DeletedFile/{idstr}");
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files.Remove(id);
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}
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files.Add(rv.Data.Fields["Id"].ToString(), file.File.Name);
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CurrentValue = (TValue)(object)(files.First().Key);
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suc = true;
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}
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}
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if (suc == false)
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{
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await WtmBlazor.Toast.Error(content: WtmBlazor.Localizer["Sys.UploadFailed"]);
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}
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}
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private async Task<bool> OnAvatarDelete(UploadFile file)
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{
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var idstr = files.Where(x => x.Value == file.OriginFileName).Select(x => x.Key).FirstOrDefault();
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if (idstr != null)
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{
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var rv = await WtmBlazor.Api.CallAPI($"/api/_file/DeletedFile/{idstr}");
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files.Remove(idstr);
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}
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return true;
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}
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private bool CheckValidAvatarFormat(string format)
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{
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return "jpg;png;bmp;gif;jpeg".Split(';').Any(f => format.Contains(f, StringComparison.OrdinalIgnoreCase));
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}
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private async Task<byte[]> GetFileData(IBrowserFile file)
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{
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using var fileStream = file.OpenReadStream(WtmBlazor.ConfigInfo.FileUploadOptions.UploadLimit);
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using var memoryStream = new MemoryStream();
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await fileStream.CopyToAsync(memoryStream);
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byte[] rv = memoryStream.ToArray();
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memoryStream.Dispose();
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fileStream.Dispose();
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return rv;
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}
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}
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