38 lines
1.4 KiB
C#
38 lines
1.4 KiB
C#
using System.Text;
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using Microsoft.AspNetCore.Components;
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using Microsoft.JSInterop;
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namespace SharepointToolbox.Web.Services.Export;
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/// <summary>
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/// Triggers browser file downloads from Blazor Server components.
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/// Converts string export outputs to bytes and invokes JS download.
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/// </summary>
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public class WebExportService
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{
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private readonly IJSRuntime _js;
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public WebExportService(IJSRuntime js) { _js = js; }
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public async Task DownloadCsvAsync(string content, string fileName)
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{
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var bytes = new UTF8Encoding(encoderShouldEmitUTF8Identifier: true).GetBytes(content);
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await _js.InvokeVoidAsync("sptb.downloadFile", fileName, "text/csv;charset=utf-8", Convert.ToBase64String(bytes));
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}
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public async Task DownloadHtmlAsync(string content, string fileName)
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{
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var bytes = new UTF8Encoding(encoderShouldEmitUTF8Identifier: false).GetBytes(content);
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await _js.InvokeVoidAsync("sptb.downloadFile", fileName, "text/html;charset=utf-8", Convert.ToBase64String(bytes));
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}
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/// <summary>
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/// Downloads pre-encoded bytes (e.g. a ZIP or a merged report produced by
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/// <see cref="ReportMergeHelper"/>) with an explicit MIME type.
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/// </summary>
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public async Task DownloadBytesAsync(byte[] content, string fileName, string mime)
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{
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await _js.InvokeVoidAsync("sptb.downloadFile", fileName, mime, Convert.ToBase64String(content));
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}
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}
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