36 lines
1.1 KiB
C#
36 lines
1.1 KiB
C#
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using Microsoft.JSInterop;
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namespace BlueWest.Razor.Library;
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// This class provides an example of how JavaScript functionality can be wrapped
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// in a .NET class for easy consumption. The associated JavaScript module is
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// loaded on demand when first needed.
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//
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// This class can be registered as scoped DI service and then injected into Blazor
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// components for use.
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public class ExampleJsInterop : IAsyncDisposable
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{
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private readonly Lazy<Task<IJSObjectReference>> moduleTask;
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public ExampleJsInterop(IJSRuntime jsRuntime)
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{
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moduleTask = new(() => jsRuntime.InvokeAsync<IJSObjectReference>(
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"import", "./_content/BlueWest.Razor.Library/exampleJsInterop.js").AsTask());
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}
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public async ValueTask<string> Prompt(string message)
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{
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var module = await moduleTask.Value;
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return await module.InvokeAsync<string>("showPrompt", message);
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}
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public async ValueTask DisposeAsync()
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{
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if (moduleTask.IsValueCreated)
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{
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var module = await moduleTask.Value;
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await module.DisposeAsync();
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}
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}
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}
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