ant-design-blazor/components/modal/modalDialog/ModalServiceForModal.cs

126 lines
4.2 KiB
C#

using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Components;
using Microsoft.AspNetCore.Components.Rendering;
using Microsoft.JSInterop;
namespace AntDesign
{
/// <summary>
/// create and open a Modal dialog
/// </summary>
public partial class ModalService: IDisposable
{
internal event Func<ModalRef, Task> OnModalOpenEvent;
internal event Func<ModalRef, Task> OnModalCloseEvent;
private readonly NavigationManager _navigationManager;
private readonly IJSRuntime _jsRuntime;
internal static HashSet<ModalRef> ReusedModals = new HashSet<ModalRef>();
/// <summary>
/// constructor
/// </summary>
public ModalService(NavigationManager navigationManager, IJSRuntime jsRuntime)
{
_navigationManager = navigationManager;
_navigationManager.LocationChanged += NavigationManager_LocationChanged;
_jsRuntime = jsRuntime;
}
/// <summary>
/// Destroy all reused Modal
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private async void NavigationManager_LocationChanged(object sender, Microsoft.AspNetCore.Components.Routing.LocationChangedEventArgs e)
{
if (ReusedModals.Count > 0)
{
// Since Modal cannot be captured, it can only be removed through JS
await _jsRuntime.InvokeVoidAsync(JSInteropConstants.DestroyAllDialog);
ReusedModals.Clear();
}
}
/// <summary>
/// Create and open a Modal
/// </summary>
/// <returns></returns>
public Task<ModalRef> CreateModalAsync(ModalOptions config)
{
if (config == null)
{
throw new ArgumentNullException(nameof(config));
}
ModalRef modalRef = new ModalRef(config, this);
config.ModalRef = modalRef;
return CreateOrOpenModalAsync(modalRef);
}
/// <summary>
/// Create and open a Modal with template
/// </summary>
/// <typeparam name="TComponent"></typeparam>
/// <typeparam name="TComponentOptions"></typeparam>
/// <param name="config"></param>
/// <param name="componentOptions"></param>
/// <returns></returns>
public Task<ModalRef> CreateModalAsync<TComponent, TComponentOptions>(ModalOptions config, TComponentOptions componentOptions) where TComponent : ModalTemplate<TComponentOptions>
{
if (config == null)
{
throw new ArgumentNullException(nameof(config));
}
ModalRef modalRef = new ModalRef(config, this);
void Child(RenderTreeBuilder builder)
{
builder.OpenComponent<TComponent>(0);
builder.AddAttribute(1, "ModalRef", modalRef);
builder.AddAttribute(2, "Options", componentOptions);
builder.CloseComponent();
}
config.Content = Child;
config.ModalRef = modalRef;
return CreateOrOpenModalAsync(modalRef);
}
/// <summary>
/// create or open a Modal dialog
/// </summary>
/// <param name="modalRef"></param>
/// <returns></returns>
internal Task<ModalRef> CreateOrOpenModalAsync(ModalRef modalRef)
{
OnModalOpenEvent?.Invoke(modalRef);
ReusedModals.Add(modalRef);
return Task.FromResult(modalRef);
}
/// <summary>
/// close modal dialog
/// </summary>
/// <param name="modalRef"></param>
/// <returns></returns>
internal Task CloseModalAsync(ModalRef modalRef)
{
if (OnModalCloseEvent != null)
{
return OnModalCloseEvent.Invoke(modalRef);
}
return Task.CompletedTask;
}
/// <summary>
/// Implement the interface IDisposable
/// </summary>
public void Dispose()
{
_navigationManager.LocationChanged -= NavigationManager_LocationChanged;
GC.SuppressFinalize(this);
}
}
}