init

OpenArchival.Blazor.FileViewer/FileViewers/TextViewer.razor

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+@namespace OpenArchival.Blazor.FileViewer
+
+@implements IFileViewer
+@using Microsoft.JSInterop
+@using MudBlazor
+@using OpenArchival.DataAccess
+@inject IJSRuntime JSRuntime
+
+<div @ref="_textContainer" style="width:100%; max-height: 1100px; overflow-y: auto; background-color: var(--mud-palette-background-grey); padding: 16px; border-radius: 4px;">
+    <MudText Typo="Typo.body1" Style="white-space: pre-wrap; font-family: 'Courier New', Courier, monospace; color: var(--mud-palette-text-primary);">
+        @_textContent
+    </MudText>
+</div>
+
+@code {
+    [Parameter]
+    public required FilePathListing File { get; set; }
+
+    [Parameter]
+    public EventCallback<int> OnHeightMeasured { get; set; }
+
+    private string? _textContent;
+    private ElementReference _textContainer;
+
+    protected override async Task OnInitializedAsync()
+    {
+        try
+        {
+            if (System.IO.File.Exists(File.Path))
+            {
+                _textContent = await System.IO.File.ReadAllTextAsync(File.Path);
+            }
+            else
+            {
+                _textContent = "Error: File not found on disk.";
+            }
+        }
+        catch (Exception ex)
+        {
+            _textContent = $"Error reading file: {ex.Message}";
+        }
+    }
+
+    protected override async Task OnAfterRenderAsync(bool firstRender)
+    {
+        try
+        {
+            var height = await JSRuntime.InvokeAsync<int>("getElementHeight", _textContainer);
+            // Add some padding to avoid scrollbars if possible, or just use what it is
+            await OnHeightMeasured.InvokeAsync(height);
+        }
+        catch (Exception ex)
+        {
+            Console.WriteLine($"Error measuring text height: {ex.Message}");
+        }
+    }
+}