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d4cbc6d4e0
* refactor: rename `HtmlElement` property case * rename the directory name for overlay * add element component
184 lines
5.1 KiB
C#
184 lines
5.1 KiB
C#
using System.Collections;
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using System.Globalization;
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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.Web;
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namespace AntDesign
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{
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public partial class Avatar : AntDomComponentBase
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{
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[Parameter]
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public RenderFragment ChildContent
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{
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get => _childContent;
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set
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{
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_childContent = value;
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_waitingCaclSize = true;
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}
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}
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[Parameter]
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public string Shape { get; set; } = null;
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[Parameter]
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public string Size { get; set; } = AntSizeLDSType.Default;
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[Parameter]
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public string Text
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{
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get => _text;
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set
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{
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if (_text != value)
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{
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_text = value;
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_waitingCaclSize = true;
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}
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}
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}
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[Parameter]
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public string Src { get; set; }
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[Parameter]
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public string SrcSet { get; set; }
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[Parameter]
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public string Alt { get; set; }
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[Parameter]
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public string Icon { get; set; }
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[Parameter]
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public EventCallback<ErrorEventArgs> OnError { get; set; }
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[CascadingParameter]
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public AvatarGroup Group { get; set; }
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[CascadingParameter(Name = "position")]
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public string Position { get; set; }
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/// <summary>
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/// more than group max count
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/// </summary>
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internal bool Overflow { get; set; }
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private bool _hasText;
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private bool _hasSrc = true;
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private bool _hasIcon;
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private string _textStyles = "";
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private string _sizeStyles = "";
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protected ElementReference TextEl { get; set; }
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private string _prefixCls = "ant-avatar";
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private readonly Hashtable _sizeMap = new Hashtable() { ["large"] = "lg", ["small"] = "sm" };
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private string _text;
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private RenderFragment _childContent;
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private bool _waitingCaclSize;
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protected override void OnInitialized()
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{
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base.OnInitialized();
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Group?.AddAvatar(this);
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SetClassMap();
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SetSizeStyle();
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}
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protected override void OnParametersSet()
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{
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_hasText = string.IsNullOrEmpty(Src) && (!string.IsNullOrEmpty(_text) || _childContent != null);
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_hasIcon = string.IsNullOrEmpty(Src) && !string.IsNullOrEmpty(Icon);
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_hasSrc = !string.IsNullOrEmpty(Src);
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base.OnParametersSet();
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}
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protected override async Task OnAfterRenderAsync(bool firstRender)
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{
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if (firstRender || _waitingCaclSize)
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{
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_waitingCaclSize = false;
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await CalcStringSize();
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}
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await base.OnAfterRenderAsync(firstRender);
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}
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private async Task ImgError(ErrorEventArgs args)
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{
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await OnError.InvokeAsync(args);
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_hasSrc = false;
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_hasIcon = false;
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_hasText = false;
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if (!string.IsNullOrEmpty(Icon))
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{
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_hasIcon = true;
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}
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else if (!string.IsNullOrEmpty(_text))
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{
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_hasText = true;
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}
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_waitingCaclSize = true;
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}
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private void SetClassMap()
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{
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ClassMapper.Clear()
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.Add(_prefixCls)
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.GetIf(() => $"{_prefixCls}-{_sizeMap[Size]}", () => _sizeMap.ContainsKey(Size))
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.GetIf(() => $"{_prefixCls}-{Shape}", () => !string.IsNullOrEmpty(Shape))
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.If($"{_prefixCls}-icon", () => !string.IsNullOrEmpty(Icon))
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.If($"{_prefixCls}-image", () => _hasSrc);
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}
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private void SetSizeStyle()
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{
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if (decimal.TryParse(Size, out var pxSize))
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{
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string size = new CssSizeLength(pxSize).ToString();
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_sizeStyles = $"width:{size};height:{size};line-height:{size};";
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if (_hasIcon)
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{
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_sizeStyles += $"font-size:calc(${size} / 2);";
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}
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}
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}
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private async Task CalcStringSize()
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{
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if (!_hasText)
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{
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return;
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}
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var childrenWidth = (await JsInvokeAsync<HtmlElement>(JSInteropConstants.GetDomInfo, TextEl))?.OffsetWidth ?? 0;
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var avatarWidth = (await JsInvokeAsync<DomRect>(JSInteropConstants.GetBoundingClientRect, Ref))?.Width ?? 0;
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var scale = childrenWidth != 0 && avatarWidth - 8 < childrenWidth ? (avatarWidth - 8) / childrenWidth : 1;
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_textStyles = $"transform: scale({new CssSizeLength(scale, true)}) translateX(-50%);";
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if (decimal.TryParse(Size, out var pxSize))
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{
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_textStyles += $"lineHeight:{(CssSizeLength)pxSize};";
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}
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StateHasChanged();
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}
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protected override void Dispose(bool disposing)
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{
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Group?.RemoveAvatar(this);
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base.Dispose(disposing);
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}
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}
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}
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