LANCommander/LANCommander.Server/UI/Components/FilePicker.razor

<Space Style="display: flex; flex-grow: 1;">
    <SpaceItem Style="flex-grow: 1">
        <Input TValue="string" Type="InputType.Text" @bind-Value="Value" OnInput="OnInput" BindOnInput="true" Disabled="@Disabled" />
    </SpaceItem>
    <SpaceItem>
        @if (Before is not null)
        {
            @Before
        }
        
        <FilePickerButton
            Type="ButtonType.Primary"
            Icon="@IconType.Outline.FolderOpen"
            ArchiveId="@ArchiveId"
            Title="@Title"
            OkText="@OkText"
            AllowDirectories="@AllowDirectories"
            Prefix="@Prefix"
            Root="@Root"
            Disabled="@Disabled"
            EntrySelectable="@EntrySelectable"
            EntryVisible="@EntryVisible"
            OnSelected="OnFileSelected"/>
        
        @if (After is not null)
        {
            @After
        }
    </SpaceItem>
</Space>

@code {
    [Parameter] public string Value { get; set; }
    [Parameter] public EventCallback<string> ValueChanged { get; set; }
    [Parameter] public EventCallback<string> OnSelected { get; set; }
    [Parameter] public Guid? ArchiveId { get; set; }
    [Parameter] public string Title { get; set; } = "Choose File";
    [Parameter] public string OkText { get; set; } = "Select File";
    [Parameter] public bool AllowDirectories { get; set; } = false;
    [Parameter] public string? Prefix { get; set; }
    [Parameter] public string? Root { get; set; }
    [Parameter] public bool Disabled { get; set; }
    [Parameter] public Func<IFileManagerEntry, bool> EntrySelectable { get; set; } = _ => true;
    [Parameter] public Func<IFileManagerEntry, bool> EntryVisible { get; set; } = _ => true;
    [Parameter] public RenderFragment? Before { get; set; }
    [Parameter] public RenderFragment? After { get; set; }

    async Task OnInput(ChangeEventArgs args)
    {
        var inputString = args?.Value.ToString();

        Value = inputString;

        if (ValueChanged.HasDelegate)
            await ValueChanged.InvokeAsync(inputString);
    }

    async Task OnFileSelected(string selectedFile)
    {
        Value = selectedFile;

        if (ValueChanged.HasDelegate)
            await ValueChanged.InvokeAsync(selectedFile);

        if (OnSelected.HasDelegate)
            await OnSelected.InvokeAsync(selectedFile);

        await InvokeAsync(StateHasChanged);
    }
}