mirror of
https://gitee.com/ant-design-blazor/ant-design-blazor.git
synced 2024-12-15 17:31:42 +08:00
556 lines
18 KiB
C#
556 lines
18 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Text.Json;
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using System.Threading;
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using System.Threading.Tasks;
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using AntDesign.JsInterop;
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using Microsoft.AspNetCore.Components;
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using Microsoft.AspNetCore.Components.Rendering;
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using Microsoft.AspNetCore.Components.Web;
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namespace AntDesign
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{
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/// <summary>
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///
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/// </summary>
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public class Input<TValue> : AntInputComponentBase<TValue>
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{
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protected const string PrefixCls = "ant-input";
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private bool _allowClear;
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protected string AffixWrapperClass { get; set; } = $"{PrefixCls}-affix-wrapper";
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private bool _hasAffixWrapper;
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protected string GroupWrapperClass { get; set; } = $"{PrefixCls}-group-wrapper";
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protected virtual string InputType => "input";
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//protected string ClearIconClass { get; set; }
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protected static readonly EventCallbackFactory CallbackFactory = new EventCallbackFactory();
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protected virtual bool IgnoreOnChangeAndBlur { get; }
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protected virtual bool EnableOnPressEnter => OnPressEnter.HasDelegate;
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[Inject]
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public DomEventService DomEventService { get; set; }
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[Parameter]
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public string Type { get; set; } = "text";
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[Parameter]
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public RenderFragment AddOnBefore { get; set; }
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[Parameter]
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public RenderFragment AddOnAfter { get; set; }
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[Parameter]
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public string Placeholder { get; set; }
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[Parameter]
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public bool AutoFocus
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{
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get { return _autoFocus; }
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set
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{
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_autoFocus = value;
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if (!_isInitialized && _autoFocus)
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IsFocused = _autoFocus;
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}
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}
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[Parameter]
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public TValue DefaultValue { get; set; }
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[Parameter]
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public int MaxLength { get; set; } = -1;
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[Parameter]
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public bool Disabled { get; set; }
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[Parameter]
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public bool AllowClear { get; set; }
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[Parameter]
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public RenderFragment Prefix { get; set; }
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[Parameter]
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public RenderFragment Suffix { get; set; }
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[Parameter]
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public RenderFragment ChildContent { get; set; }
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[Parameter]
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public EventCallback<TValue> OnChange { get; set; }
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[Parameter]
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public EventCallback<KeyboardEventArgs> OnPressEnter { get; set; }
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[Parameter]
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public EventCallback<KeyboardEventArgs> OnkeyUp { get; set; }
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[Parameter]
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public EventCallback<KeyboardEventArgs> OnkeyDown { get; set; }
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[Parameter]
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public EventCallback<MouseEventArgs> OnMouseUp { get; set; }
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[Parameter]
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public EventCallback<ChangeEventArgs> OnInput { get; set; }
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[Parameter]
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public EventCallback<FocusEventArgs> OnBlur { get; set; }
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[Parameter]
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public EventCallback<FocusEventArgs> OnFocus { get; set; }
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[Parameter]
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public int DebounceMilliseconds { get; set; } = 250;
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[Parameter]
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public string WrapperStyle { get; set; }
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public Dictionary<string, object> Attributes { get; set; }
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public ForwardRef WrapperRefBack { get; set; }
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private TValue _inputValue;
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private bool _compositionInputting;
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private Timer _debounceTimer;
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private bool _autoFocus;
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private bool _isInitialized;
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private bool DebounceEnabled => DebounceMilliseconds != 0;
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protected bool IsFocused { get; set; }
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protected override void OnInitialized()
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{
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base.OnInitialized();
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if (!string.IsNullOrEmpty(DefaultValue?.ToString()) && string.IsNullOrEmpty(Value?.ToString()))
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{
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Value = DefaultValue;
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}
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SetClasses();
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_isInitialized = true;
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}
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protected virtual void SetClasses()
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{
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AffixWrapperClass = $"{PrefixCls}-affix-wrapper {(IsFocused ? $"{PrefixCls}-affix-wrapper-focused" : "")}";
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GroupWrapperClass = $"{PrefixCls}-group-wrapper";
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if (!string.IsNullOrWhiteSpace(Class))
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{
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AffixWrapperClass = string.Join(" ", Class, AffixWrapperClass);
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ClassMapper.OriginalClass = "";
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}
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ClassMapper.Clear()
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.Add($"{PrefixCls}")
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.If($"{PrefixCls}-lg", () => Size == InputSize.Large)
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.If($"{PrefixCls}-sm", () => Size == InputSize.Small)
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.If($"{PrefixCls}-rtl", () => RTL)
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;
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Attributes ??= new Dictionary<string, object>();
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if (MaxLength >= 0 && !Attributes.ContainsKey("maxlength"))
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{
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Attributes?.Add("maxlength", MaxLength);
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}
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if (Disabled)
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{
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// TODO: disable element
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AffixWrapperClass = string.Join(" ", AffixWrapperClass, $"{PrefixCls}-affix-wrapper-disabled");
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ClassMapper.Add($"{PrefixCls}-disabled");
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}
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if (AllowClear)
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{
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_allowClear = true;
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//ClearIconClass = $"{PrefixCls}-clear-icon";
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ToggleClearBtn();
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}
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if (Size == InputSize.Large)
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{
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AffixWrapperClass = string.Join(" ", AffixWrapperClass, $"{PrefixCls}-affix-wrapper-lg");
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GroupWrapperClass = string.Join(" ", GroupWrapperClass, $"{PrefixCls}-group-wrapper-lg");
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}
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else if (Size == InputSize.Small)
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{
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AffixWrapperClass = string.Join(" ", AffixWrapperClass, $"{PrefixCls}-affix-wrapper-sm");
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GroupWrapperClass = string.Join(" ", GroupWrapperClass, $"{PrefixCls}-group-wrapper-sm");
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}
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}
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protected override void OnParametersSet()
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{
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base.OnParametersSet();
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SetClasses();
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}
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protected virtual async Task OnChangeAsync(ChangeEventArgs args)
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{
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if (CurrentValueAsString != args?.Value?.ToString())
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{
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if (OnChange.HasDelegate)
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{
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await OnChange.InvokeAsync(Value);
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}
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}
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}
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protected async Task OnKeyPressAsync(KeyboardEventArgs args)
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{
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if (args?.Key == "Enter" && InputType != "textarea")
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{
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await ChangeValue(true);
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if (EnableOnPressEnter)
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{
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await OnPressEnter.InvokeAsync(args);
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await OnPressEnterAsync();
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}
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}
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}
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protected virtual Task OnPressEnterAsync() => Task.CompletedTask;
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protected async Task OnKeyUpAsync(KeyboardEventArgs args)
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{
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await ChangeValue();
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if (OnkeyUp.HasDelegate) await OnkeyUp.InvokeAsync(args);
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}
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protected virtual async Task OnkeyDownAsync(KeyboardEventArgs args)
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{
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if (OnkeyDown.HasDelegate) await OnkeyDown.InvokeAsync(args);
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}
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protected async Task OnMouseUpAsync(MouseEventArgs args)
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{
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await ChangeValue(true);
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if (OnMouseUp.HasDelegate) await OnMouseUp.InvokeAsync(args);
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}
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internal virtual async Task OnBlurAsync(FocusEventArgs e)
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{
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IsFocused = false;
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if (_hasAffixWrapper)
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SetClasses();
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if (_compositionInputting)
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{
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_compositionInputting = false;
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}
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await ChangeValue(true);
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if (OnBlur.HasDelegate)
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{
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await OnBlur.InvokeAsync(e);
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}
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}
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private async void OnFocusInternal(JsonElement e) => await OnFocusAsync(new());
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internal virtual async Task OnFocusAsync(FocusEventArgs e)
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{
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IsFocused = true;
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if (_hasAffixWrapper)
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SetClasses();
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if (OnFocus.HasDelegate)
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{
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await OnFocus.InvokeAsync(e);
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}
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}
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internal virtual void OnCompositionStart(JsonElement e)
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{
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_compositionInputting = true;
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}
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internal virtual void OnCompositionEnd(JsonElement e)
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{
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_compositionInputting = false;
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}
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private void ToggleClearBtn()
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{
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Suffix = (builder) =>
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{
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builder.OpenComponent<Icon>(31);
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builder.AddAttribute(32, "Type", "close-circle");
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builder.AddAttribute(33, "Class", GetClearIconCls());
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if (string.IsNullOrEmpty(Value?.ToString()))
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{
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builder.AddAttribute(34, "Style", "visibility: hidden;");
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}
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else
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{
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builder.AddAttribute(34, "Style", "visibility: visible;");
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}
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builder.AddAttribute(35, "OnClick", CallbackFactory.Create<MouseEventArgs>(this, async (args) =>
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{
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CurrentValue = default;
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IsFocused = true;
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await this.FocusAsync(Ref);
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if (OnChange.HasDelegate)
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await OnChange.InvokeAsync(Value);
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ToggleClearBtn();
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}));
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builder.CloseComponent();
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};
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}
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protected void DebounceChangeValue()
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{
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_debounceTimer?.Dispose();
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_debounceTimer = new Timer(DebounceTimerIntervalOnTick, null, DebounceMilliseconds, DebounceMilliseconds);
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}
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protected void DebounceTimerIntervalOnTick(object state)
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{
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InvokeAsync(async () => await ChangeValue(true));
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}
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private async Task ChangeValue(bool ignoreDebounce = false)
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{
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if (DebounceEnabled)
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{
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if (!ignoreDebounce)
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{
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DebounceChangeValue();
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return;
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}
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_debounceTimer?.Dispose();
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if (_debounceTimer != null)
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{
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_debounceTimer = null;
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}
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}
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if (!_compositionInputting)
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{
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if (!EqualityComparer<TValue>.Default.Equals(CurrentValue, _inputValue))
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{
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CurrentValue = _inputValue;
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if (OnChange.HasDelegate)
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{
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await OnChange.InvokeAsync(Value);
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}
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}
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}
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}
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protected override async Task OnAfterRenderAsync(bool firstRender)
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{
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await base.OnAfterRenderAsync(firstRender);
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if (firstRender)
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{
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DomEventService.AddEventListener(Ref, "compositionstart", OnCompositionStart);
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DomEventService.AddEventListener(Ref, "compositionend", OnCompositionEnd);
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if (this.AutoFocus)
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{
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IsFocused = true;
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await this.FocusAsync(Ref);
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}
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DomEventService.AddEventListener(Ref, "focus", OnFocusInternal, true);
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}
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}
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protected override void Dispose(bool disposing)
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{
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DomEventService.RemoveEventListerner<JsonElement>(Ref, "compositionstart", OnCompositionStart);
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DomEventService.RemoveEventListerner<JsonElement>(Ref, "compositionend", OnCompositionEnd);
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DomEventService.RemoveEventListerner<JsonElement>(Ref, "focus", OnFocusInternal);
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_debounceTimer?.Dispose();
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base.Dispose(disposing);
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}
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protected virtual string GetClearIconCls()
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{
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return $"{PrefixCls}-clear-icon";
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}
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protected override void OnValueChange(TValue value)
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{
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base.OnValueChange(value);
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_inputValue = value;
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}
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/// <summary>
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/// Invoked when user add/remove content
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/// </summary>
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/// <param name="args"></param>
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/// <returns></returns>
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protected virtual async void OnInputAsync(ChangeEventArgs args)
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{
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bool flag = !(!string.IsNullOrEmpty(Value?.ToString()) && args != null && !string.IsNullOrEmpty(args.Value.ToString()));
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if (TryParseValueFromString(args?.Value.ToString(), out TValue value, out var error))
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{
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_inputValue = value;
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}
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if (_allowClear && flag)
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{
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ToggleClearBtn();
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}
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if (OnInput.HasDelegate)
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{
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await OnInput.InvokeAsync(args);
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}
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}
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protected override void BuildRenderTree(RenderTreeBuilder builder)
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{
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if (builder != null)
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{
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base.BuildRenderTree(builder);
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string container = "input";
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if (AddOnBefore != null || AddOnAfter != null)
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{
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container = "groupWrapper";
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_hasAffixWrapper = true;
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builder.OpenElement(1, "span");
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builder.AddAttribute(2, "class", GroupWrapperClass);
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builder.AddAttribute(3, "style", WrapperStyle);
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builder.OpenElement(4, "span");
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builder.AddAttribute(5, "class", $"{PrefixCls}-wrapper {PrefixCls}-group");
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}
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if (AddOnBefore != null)
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{
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_hasAffixWrapper = true;
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// addOnBefore
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builder.OpenElement(11, "span");
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builder.AddAttribute(12, "class", $"{PrefixCls}-group-addon");
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builder.AddContent(13, AddOnBefore);
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builder.CloseElement();
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}
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if (Prefix != null || Suffix != null)
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{
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_hasAffixWrapper = true;
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builder.OpenElement(21, "span");
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builder.AddAttribute(22, "class", AffixWrapperClass);
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if (container == "input")
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{
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container = "affixWrapper";
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builder.AddAttribute(3, "style", WrapperStyle);
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}
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if (WrapperRefBack != null)
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{
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builder.AddElementReferenceCapture(24, r => WrapperRefBack.Current = r);
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}
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}
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if (Prefix != null)
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{
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_hasAffixWrapper = true;
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// prefix
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builder.OpenElement(31, "span");
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builder.AddAttribute(32, "class", $"{PrefixCls}-prefix");
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builder.AddContent(33, Prefix);
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builder.CloseElement();
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}
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// input
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builder.OpenElement(41, "input");
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builder.AddAttribute(42, "class", ClassMapper.Class);
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if (container == "input")
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{
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builder.AddAttribute(43, "style", Style);
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}
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bool needsDisabled = Disabled;
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if (Attributes != null)
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{
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builder.AddMultipleAttributes(44, Attributes);
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if (!Attributes.TryGetValue("disabled", out object disabledAttribute))
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{
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needsDisabled = ((bool?)disabledAttribute ?? needsDisabled) | Disabled;
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}
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}
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if (AdditionalAttributes != null)
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{
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builder.AddMultipleAttributes(45, AdditionalAttributes);
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if (!AdditionalAttributes.TryGetValue("disabled", out object disabledAttribute))
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{
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needsDisabled = ((bool?)disabledAttribute ?? needsDisabled) | Disabled;
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}
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}
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builder.AddAttribute(50, "Id", Id);
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builder.AddAttribute(51, "type", Type);
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builder.AddAttribute(60, "placeholder", Placeholder);
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builder.AddAttribute(61, "value", CurrentValue);
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builder.AddAttribute(62, "disabled", needsDisabled);
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// onchange 和 onblur 事件会导致点击 OnSearch 按钮时不触发 Click 事件，暂时取消这两个事件
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if (!IgnoreOnChangeAndBlur)
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{
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builder.AddAttribute(70, "onchange", CallbackFactory.Create(this, OnChangeAsync));
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builder.AddAttribute(71, "onblur", CallbackFactory.Create(this, OnBlurAsync));
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}
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builder.AddAttribute(72, "onkeypress", CallbackFactory.Create(this, OnKeyPressAsync));
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builder.AddAttribute(73, "onkeydown", CallbackFactory.Create(this, OnkeyDownAsync));
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builder.AddAttribute(74, "onkeyup", CallbackFactory.Create(this, OnKeyUpAsync));
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builder.AddAttribute(75, "oninput", CallbackFactory.Create(this, OnInputAsync));
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//TODO: Use built in @onfocus once https://github.com/dotnet/aspnetcore/issues/30070 is solved
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//builder.AddAttribute(76, "onfocus", CallbackFactory.Create(this, OnFocusAsync));
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builder.AddAttribute(77, "onmouseup", CallbackFactory.Create(this, OnMouseUpAsync));
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builder.AddElementReferenceCapture(90, r => Ref = r);
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builder.CloseElement();
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if (Suffix != null)
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{
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_hasAffixWrapper = true;
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// suffix
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builder.OpenElement(91, "span");
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builder.AddAttribute(92, "class", $"{PrefixCls}-suffix");
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builder.AddContent(93, Suffix);
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builder.CloseElement();
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}
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if (Prefix != null || Suffix != null)
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{
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builder.CloseElement();
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}
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if (AddOnAfter != null)
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{
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_hasAffixWrapper = true;
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// addOnAfter
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builder.OpenElement(100, "span");
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builder.AddAttribute(101, "class", $"{PrefixCls}-group-addon");
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builder.AddContent(102, AddOnAfter);
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builder.CloseElement();
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}
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if (AddOnBefore != null || AddOnAfter != null)
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{
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builder.CloseElement();
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builder.CloseElement();
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}
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}
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}
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}
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}
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