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https://gitee.com/ant-design-blazor/ant-design-blazor.git
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ab19703301
* refactor: remove md of tabs demo * feat: add demos of steps * refactor: tabs demo * fix: icon * refactor: tag Co-authored-by: ElderJames <shunjiey@hotmail.com>
545 lines
19 KiB
C#
545 lines
19 KiB
C#
using AntDesign.JsInterop;
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using Microsoft.AspNetCore.Components;
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using Microsoft.AspNetCore.Components.Web;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading.Tasks;
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namespace AntDesign
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{
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public partial class Tabs : AntDomComponentBase
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{
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private const string PrefixCls = "ant-tabs";
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private bool IsHorizontal { get => TabPosition == AntDesign.TabPosition.Top || TabPosition == AntDesign.TabPosition.Bottom; }
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//private ClassMapper _barClassMapper = new ClassMapper();
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//private ClassMapper _prevClassMapper = new ClassMapper();
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//private ClassMapper _nextClassMapper = new ClassMapper();
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//private ClassMapper _navClassMapper = new ClassMapper();
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private TabPane _activePane;
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private TabPane _renderedActivePane;
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private ElementReference _activeTabBar;
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private ElementReference _scrollTabBar;
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private ElementReference _tabBars;
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private string _inkStyle;
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private string _navStyle;
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//private string _contentStyle;
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//private bool? _prevIconEnabled;
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//private bool? _nextIconEnabled;
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private string _operationClass;
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private string _tabsNavWarpPingClass;
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private string _operationStyle;
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private int _navIndex;
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private int _scrollOffset;
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private int _navTotal;
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private int _navSection;
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private bool _needRefresh;
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internal List<TabPane> _panes = new List<TabPane>();
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#region Parameters
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[Parameter]
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public RenderFragment ChildContent { get; set; }
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private string _activeKey;
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/// <summary>
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/// Current <see cref="TabPane"/>'s <see cref="TabPane.Key"/>
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/// </summary>
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[Parameter]
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public string ActiveKey
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{
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get
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{
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return _activeKey;
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}
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set
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{
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if (_activeKey != value)
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{
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_activeKey = value;
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ActivatePane(_panes.Single(p => p.Key == _activeKey));
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}
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}
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}
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/// <summary>
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/// Whether to change tabs with animation. Only works while <see cref="TabPosition"/> = <see cref="TabPosition.Top"/> or <see cref="TabPosition.Bottom"/>
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/// </summary>
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[Parameter]
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public bool Animated { get; set; } = true;
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/// <summary>
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/// Replace the TabBar
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/// </summary>
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[Parameter]
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public object RenderTabBar { get; set; }
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/// <summary>
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/// Initial active <see cref="TabPane"/>'s <see cref="TabPane.Key"/>, if <see cref="ActiveKey"/> is not set
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/// </summary>
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[Parameter]
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public string DefaultActiveKey { get; set; }
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/// <summary>
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/// Hide plus icon or not. Only works while <see cref="Type"/> = <see cref="TabType.EditableCard"/>
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/// </summary>
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[Parameter]
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public bool HideAdd { get; set; } = false;
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/// <summary>
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/// Preset tab bar size
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/// </summary>
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[Parameter]
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public string Size { get; set; } = TabSize.Default;
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/// <summary>
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/// Extra content in tab bar
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/// </summary>
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[Parameter]
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public RenderFragment TabBarExtraContent { get; set; }
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/// <summary>
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/// The gap between tabs
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/// </summary>
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[Parameter]
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public int TabBarGutter { get; set; }
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/// <summary>
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/// Tab bar style object
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/// </summary>
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[Parameter]
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public string TabBarStyle { get; set; }
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/// <summary>
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/// Position of tabs
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/// </summary>
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[Parameter]
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public string TabPosition { get; set; } = AntDesign.TabPosition.Top;
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/// <summary>
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/// Basic style of tabs
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/// </summary>
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[Parameter]
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public string Type { get; set; } = TabType.Line;
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/// <summary>
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/// Callback executed when active tab is changed
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/// </summary>
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[Parameter]
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public EventCallback<object> OnChange { get; set; }
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/// <summary>
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/// Callback executed when tab is added or removed. Only works while <see cref="Type"/> = <see cref="TabType.EditableCard"/>
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/// </summary>
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[Parameter]
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public EventCallback<object> OnEdit { get; set; }
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/// <summary>
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/// Callback executed when next button is clicked
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/// </summary>
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[Parameter]
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public EventCallback OnNextClick { get; set; }
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/// <summary>
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/// Callback executed when prev button is clicked
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/// </summary>
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[Parameter]
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public EventCallback OnPrevClick { get; set; }
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/// <summary>
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/// Callback executed when tab is clicked
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/// </summary>
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[Parameter]
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public EventCallback<object> OnTabClick { get; set; }
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/// <summary>
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/// Whether to turn on keyboard navigation
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/// </summary>
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[Parameter]
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public bool Keyboard { get; set; } = true;
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[Parameter]
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public Func<TabPane> CreateTabPane { get; set; }
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[Parameter]
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public bool Draggable { get; set; }
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#endregion Parameters
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public override Task SetParametersAsync(ParameterView parameters)
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{
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_needRefresh = true;
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_renderedActivePane = null;
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string type = parameters.GetValueOrDefault<string>(nameof(Type));
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if (type == TabType.Card)
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{
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// according to ant design documents,
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// Animated default to false when type="card"
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Animated = false;
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}
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string position = parameters.GetValueOrDefault<string>(nameof(TabPosition));
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if (!string.IsNullOrEmpty(position))
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{
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_navIndex = 0;
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}
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return base.SetParametersAsync(parameters);
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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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//if (Type == TabType.EditableCard && !HideAdd)
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//{
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// TabBarExtraContent = (b) =>
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// {
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// b.OpenComponent<Icon>(0);
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// b.AddAttribute(1, "Type", "plus");
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// b.AddAttribute(2, "class", $"{PrefixCls}-new-tab");
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// b.AddAttribute(3, "onclick", EventCallback.Factory.Create(this, AddTabPane));
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// b.CloseComponent();
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// };
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//}
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ClassMapper.Clear()
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.Add(PrefixCls)
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.Add($"{PrefixCls}-{TabPosition}")
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.Add($"{PrefixCls}-{Type}")
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.If($"{PrefixCls}-large", () => Size == TabSize.Large)
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.If($"{PrefixCls}-small", () => Size == TabSize.Small)
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.If($"{PrefixCls}-{TabType.Card}", () => Type == TabType.EditableCard)
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.If($"{PrefixCls}-no-animation", () => !Animated);
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//_barClassMapper.Clear()
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// .Add($"{PrefixCls}-bar")
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// .Add($"{PrefixCls}-{TabPosition}-bar")
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// .Add($"{PrefixCls}-{Type}-bar")
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// .If($"{PrefixCls}-{TabType.Card}-bar", () => Type == TabType.EditableCard)
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// .If($"{PrefixCls}-large-bar", () => Size == TabSize.Large)
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// .If($"{PrefixCls}-small-bar", () => Size == TabSize.Small);
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//_prevClassMapper.Clear()
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// .Add($"{PrefixCls}-tab-prev")
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// .If($"{PrefixCls}-tab-btn-disabled", () => !_prevIconEnabled.HasValue || !_prevIconEnabled.Value)
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// .If($"{PrefixCls}-tab-arrow-show", () => _prevIconEnabled.HasValue);
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//_nextClassMapper.Clear()
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// .Add($"{PrefixCls}-tab-next")
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// .If($"{PrefixCls}-tab-btn-disabled", () => !_nextIconEnabled.HasValue || !_nextIconEnabled.Value)
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// .If($"{PrefixCls}-tab-arrow-show", () => _nextIconEnabled.HasValue);
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//_navClassMapper.Clear()
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// .Add($"{PrefixCls}-nav-container")
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// .If($"{PrefixCls}-nav-container-scrolling", () => _prevIconEnabled.HasValue || _nextIconEnabled.HasValue);
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//_navStyle = "transform: translate3d(0px, 0px, 0px);";
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_inkStyle = "left: 0px; width: 0px;";
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//_contentStyle = "margin-" + (IsHorizontal ? "left" : "top") + ": 0;";
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}
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/// <summary>
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/// Add <see cref="AntTabPane"/> to <see cref="AntTabs"/>
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/// </summary>
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/// <param name="tabPane">The AntTabPane to be added</param>
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/// <exception cref="ArgumentNullException">Key is null</exception>
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/// <exception cref="ArgumentException">An AntTabPane with the same key already exists</exception>
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internal void AddTabPane(TabPane tabPane)
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{
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if (string.IsNullOrEmpty(tabPane.Key))
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{
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throw new ArgumentNullException(nameof(tabPane), "Key is null");
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}
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if (_panes.Select(p => p.Key).Contains(tabPane.Key))
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{
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throw new ArgumentException("An AntTabPane with the same key already exists");
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}
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_panes.Add(tabPane);
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if (!string.IsNullOrEmpty(DefaultActiveKey))
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{
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if (tabPane.Key == DefaultActiveKey)
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{
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ActivatePane(tabPane);
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}
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}
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else
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{
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if (_panes.Count == 1)
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{
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ActivatePane(tabPane);
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}
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}
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}
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private void AddTabPane(MouseEventArgs args)
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{
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if (CreateTabPane != null)
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{
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TabPane pane = CreateTabPane();
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Dictionary<string, object> properties = new Dictionary<string, object>
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{
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//[nameof(TabPane.Parent)] = this,
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[nameof(TabPane.ForceRender)] = pane.ForceRender,
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[nameof(TabPane.Key)] = pane.Key,
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[nameof(TabPane.Tab)] = pane.Tab,
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[nameof(TabPane.ChildContent)] = pane.ChildContent,
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[nameof(TabPane.Disabled)] = pane.Disabled
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};
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pane.SetParametersAsync(ParameterView.FromDictionary(properties));
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pane.Parent = this;
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ActivatePane(pane);
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}
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}
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public void RemoveTabPane(TabPane pane)
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{
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_needRefresh = true;
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_panes.Remove(pane);
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if (pane != null && pane.IsActive && _panes.Count > 0)
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{
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ActivatePane(_panes[0]);
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}
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}
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private void ActivatePane(TabPane tabPane)
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{
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if (!tabPane.Disabled && _panes.Contains(tabPane))
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{
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if (_activePane != null)
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{
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_activePane.IsActive = false;
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}
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tabPane.IsActive = true;
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_activePane = tabPane;
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ActiveKey = _activePane.Key;
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StateHasChanged();
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}
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}
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protected async override Task OnAfterRenderAsync(bool firstRender)
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{
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await base.OnAfterRenderAsync(firstRender);
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if (_activePane == null)
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{
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throw new ArgumentNullException($"One of {nameof(ActiveKey)} and {nameof(DefaultActiveKey)} should be set");
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}
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await TryRenderInk();
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await TryRenderNavOperation();
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_needRefresh = false;
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}
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private async Task TryRenderNavOperation()
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{
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int navWidth = (await JsInvokeAsync<Element>(JSInteropConstants.getDomInfo, _tabBars)).clientWidth;
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int navTotalWidth = (await JsInvokeAsync<Element>(JSInteropConstants.getDomInfo, _scrollTabBar)).clientWidth;
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if (navTotalWidth < navWidth)
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{
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_operationClass = "ant-tabs-nav-operations ant-tabs-nav-operations-hidden";
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_operationStyle = "visibility: hidden; order: 1;";
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_tabsNavWarpPingClass = string.Empty;
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}
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else
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{
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_operationClass = "ant-tabs-nav-operations";
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_tabsNavWarpPingClass = "ant-tabs-nav-wrap-ping-right";
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_operationStyle = string.Empty;
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}
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StateHasChanged();
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}
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private async Task TryRenderInk()
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{
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if (_renderedActivePane != _activePane)
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{
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// TODO: slide to activated tab
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// animate Active Ink
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// ink bar
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Element element = await JsInvokeAsync<Element>(JSInteropConstants.getDomInfo, _activeTabBar);
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Element navSection = await JsInvokeAsync<Element>(JSInteropConstants.getDomInfo, _tabBars);
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Element navScroll = await JsInvokeAsync<Element>(JSInteropConstants.getDomInfo, _scrollTabBar);
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if (IsHorizontal)
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{
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//_inkStyle = "left: 0px; width: 0px;";
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_inkStyle = $"left: {element.offsetLeft}px; width: {element.clientWidth}px";
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if (element.offsetLeft > _scrollOffset + navSection.clientWidth
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|| element.offsetLeft < _scrollOffset)
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{
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// need to scroll tab bars
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_scrollOffset = element.offsetLeft;
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_navStyle = $"transform: translate(-{_scrollOffset}px, 0px);";
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}
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}
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else
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{
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_inkStyle = $"top: {element.offsetTop}px; height: {element.clientHeight}px;";
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if (element.offsetTop > _scrollOffset + navSection.clientHeight
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|| element.offsetTop < _scrollOffset)
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{
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// need to scroll tab bars
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_scrollOffset = element.offsetTop;
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_navStyle = $"transform: translate(0px, -{_scrollOffset}px);";
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}
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}
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StateHasChanged();
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_renderedActivePane = _activePane;
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}
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}
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//private async void OnPrevClicked()
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//{
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// _needRefresh = true;
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// if (OnPrevClick.HasDelegate)
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// {
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// await OnPrevClick.InvokeAsync(null);
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// }
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// // get the old offset to the left, and _navIndex != 0 because prev will be disabled
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// int left = _navIndex * _navSection;
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// if (IsHorizontal)
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// {
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// _navSection = (await JsInvokeAsync<Element>(JSInteropConstants.getDomInfo, _scrollTabBar)).clientWidth;
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// _navTotal = (await JsInvokeAsync<Element>(JSInteropConstants.getDomInfo, _tabBars)).clientWidth;
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// }
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// else
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// {
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// _navSection = (await JsInvokeAsync<Element>(JSInteropConstants.getDomInfo, _scrollTabBar)).clientHeight;
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// _navTotal = (await JsInvokeAsync<Element>(JSInteropConstants.getDomInfo, _tabBars)).clientHeight;
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// }
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// // calculate the current _navIndex after users resize the browser, and _navIndex > 0 guaranteed since left > 0
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// _navIndex = (int)Math.Ceiling(1.0 * left / _navSection);
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// int offset = --_navIndex * _navSection;
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// if (IsHorizontal)
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// {
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// _navStyle = $"transform: translate3d(-{offset}px, 0px, 0px);";
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// }
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// else
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// {
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// _navStyle = $"transform: translate3d(0px, -{offset}px, 0px);";
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// }
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// RefreshNavIcon();
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// _needRefresh = false;
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//}
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//private async void OnNextClicked()
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//{
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// // BUG: when vertical
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// _needRefresh = true;
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// if (OnNextClick.HasDelegate)
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// {
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// await OnNextClick.InvokeAsync(null);
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// }
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// // get the old offset to the left
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// int left = _navIndex * _navSection;
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// if (IsHorizontal)
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// {
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// _navSection = (await JsInvokeAsync<Element>(JSInteropConstants.getDomInfo, _scrollTabBar)).clientWidth;
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// _navTotal = (await JsInvokeAsync<Element>(JSInteropConstants.getDomInfo, _tabBars)).clientWidth;
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// }
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// else
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// {
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// _navSection = (await JsInvokeAsync<Element>(JSInteropConstants.getDomInfo, _scrollTabBar)).clientHeight;
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// _navTotal = (await JsInvokeAsync<Element>(JSInteropConstants.getDomInfo, _tabBars)).clientHeight;
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// }
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// // calculate the current _navIndex after users resize the browser
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// _navIndex = left / _navSection;
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// int offset = Math.Min(++_navIndex * _navSection, _navTotal / _navSection * _navSection);
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// if (IsHorizontal)
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// {
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// _navStyle = $"transform: translate3d(-{offset}px, 0px, 0px);";
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// }
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// else
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// {
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// _navStyle = $"transform: translate3d(0px, -{offset}px, 0px);";
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// }
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// RefreshNavIcon();
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// _needRefresh = false;
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//}
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//private void RefreshNavIcon()
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//{
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// if (_navTotal > _navSection)
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// {
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// if (_navIndex == 0)
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// {
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// // reach the first section
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// _prevIconEnabled = false;
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// }
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// else
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// {
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// _prevIconEnabled = true;
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// }
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// if ((_navIndex + 1) * _navSection > _navTotal)
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// {
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// // reach the last section
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// _nextIconEnabled = false;
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// }
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// else
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// {
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// _nextIconEnabled = true;
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// }
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// }
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// else
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// {
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// // hide icon
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// _prevIconEnabled = null;
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// _nextIconEnabled = null;
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// }
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// StateHasChanged();
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//}
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protected override bool ShouldRender()
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{
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return _needRefresh || _renderedActivePane != _activePane;
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}
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#region DRAG & DROP
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private TabPane _draggingPane;
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private void HandleDragStart(DragEventArgs args, TabPane pane)
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{
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if (Draggable)
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{
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args.DataTransfer.DropEffect = "move";
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args.DataTransfer.EffectAllowed = "move";
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_draggingPane = pane;
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}
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}
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private void HandleDrop(TabPane pane)
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{
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if (Draggable && _draggingPane != null)
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{
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int newIndex = _panes.IndexOf(pane);
|
|
_panes.Remove(_draggingPane);
|
|
_panes.Insert(newIndex, _draggingPane);
|
|
_draggingPane = null;
|
|
_needRefresh = true;
|
|
_renderedActivePane = null;
|
|
StateHasChanged();
|
|
}
|
|
}
|
|
|
|
#endregion DRAG & DROP
|
|
}
|
|
}
|