100 lines
2.6 KiB
Plaintext
100 lines
2.6 KiB
Plaintext
@namespace OpenArchival.Blazor.CustomComponents
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@using MudBlazor
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@using MudExtensions
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@* ChipContainer.razor *@
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@typeparam T
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<div class="d-flex flex-wrap ga-2 align-center">
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@* Loop through and display each item as a chip *@
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@foreach (var item in Items)
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{
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@if (DeleteEnabled)
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{
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<MudChip Color="Color.Primary" OnClose="() => RemoveItem(item)" T="T">
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@DisplayFunc(item)
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</MudChip>
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} else
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{
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<MudChip Color="Color.Primary" T="T">
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@DisplayFunc(item)
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</MudChip>
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}
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}
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@* Render the input control provided by the consumer *@
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<div style="min-width: 150px;">
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@if (InputContent is not null)
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{
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@InputContent(this)
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}
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</div>
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@SubmitButton
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</div>
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@code {
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[Parameter]
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public bool DeleteEnabled { get; set; } = true;
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/// <summary>
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/// The list of items to display and manage.
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/// </summary>
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[Parameter]
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public required List<T> Items { get; set; } = new();
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/// <summary>
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/// Required for two-way binding (@bind-Items).
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/// </summary>
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[Parameter]
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public EventCallback<List<T>> ItemsChanged { get; set; }
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[Parameter]
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public EventCallback<T> ItemRemoved { get; set; }
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/// <summary>
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/// The RenderFragment that defines the custom input control.
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/// The 'context' is a reference to this component instance.
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/// </summary>
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[Parameter]
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public RenderFragment<ChipContainer<T>>? InputContent { get; set; }
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[Parameter]
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public RenderFragment SubmitButton { get; set; }
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/// <summary>
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/// A function to convert an item of type T to a string for display in the chip.
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/// Defaults to item.ToString().
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/// </summary>
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[Parameter]
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public Func<T, string> DisplayFunc { get; set; } = item => item?.ToString() ?? string.Empty;
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/// <summary>
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/// A public method that the consumer's input control can call to add a new item.
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/// </summary>
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public async Task AddItem(T item)
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{
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if (item is null || (item is string str && string.IsNullOrWhiteSpace(str)))
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{
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return;
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}
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// Add the item if it doesn't already exist
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if (!Items.Contains(item))
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{
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Items.Add(item);
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await ItemsChanged.InvokeAsync(Items);
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}
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}
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/// <summary>
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/// Removes an item from the list when the chip's close icon is clicked.
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/// </summary>
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private async Task RemoveItem(T item)
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{
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Items.Remove(item);
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await ItemsChanged.InvokeAsync(Items);
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await ItemRemoved.InvokeAsync(item);
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}
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} |