ant-design-blazor/components/input-number/InputNumber.razor.cs
Andrzej Bakun 152a574577 feat(module: overlay): OverlayTrigger not bound to a div (#937)
* feat(module:overlay): OverlayTrigger not bound to a div

* feat(module:overlay): OverlayTrigger not bound to a div

* feat(module:overlay): Logic transfer to single Overlay

* feat(module:overlay): remove obsolete duplication

* feat(module:Tooltip): Add for unbounded oncontextmenu event handler

* feat(module:tooltip): unbound js event listeners remove

* docs(module:tooltip): unbound explanation

* fix(module:button): attach Ref to top level html element @ref

* feat(module:dropdown&tooltip&popconfirm&popover): Overlay not bound to a div

* docs(module:dropdown&tooltip&popconfirm&popover): unbound explanation

* feat(module:OverlayTrigger): common logic relocation

* feat(module:overlaytrigger): Overlay not bound to a div

* feat(module:DatePicker): Overlay not bound to a div

* feat(module:select): Overlay not boud to div

* fix(module:select): onclickarrow event relocation

* fix(module:select): rename Show to OnArrowClick

* feat(module:avatar): Overlay not bound to a div

* docs(module:avatar): demo switch to unbound version

* feat(module:autocomplete): partial OverlayTrigger not bound to a div

* feat(module:slider): tooltip

* docs(module:slider): tooltip

* fix(module:overlay): add SetVisible method

* feat: set Ref where missing, performance

components register Ref when missing
IsFixed flag for CascadeValue changed
hard-code sequence numbers when using RenderTreeBuilder
Rate component use Tooltip Unbound version
Tabs test fix

* fix: revert changes (accidental)

* feat(module:upload): tooltip with unbound usage

* feat(module:table): column use of unbound tooltip

* feat(module:autocomplete):overlay unbound from div

* fix(module:upload): missing div restore

Co-authored-by: James Yeung <shunjiey@hotmail.com>
2021-01-21 17:20:10 +08:00

395 lines
14 KiB
C#

using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Linq.Expressions;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Components;
namespace AntDesign
{
public partial class InputNumber<TValue> : AntInputComponentBase<TValue>
{
private string _format;
protected const string PrefixCls = "ant-input-number";
[Parameter]
public Func<TValue, string> Formatter { get; set; }
[Parameter]
public Func<string, string> Parser { get; set; }
private TValue _step;
[Parameter]
public TValue Step
{
get
{
return _step;
}
set
{
_step = value;
var stepStr = _step.ToString();
if (string.IsNullOrEmpty(_format))
{
_format = string.Join('.', stepStr.Split('.').Select(n => new string('0', n.Length)));
}
else
{
if (stepStr.IndexOf('.') > 0)
_decimalPlaces = stepStr.Length - stepStr.IndexOf('.') - 1;
else
_decimalPlaces = 0;
}
}
}
private int? _decimalPlaces;
[Parameter]
public TValue DefaultValue { get; set; }
[Parameter]
public TValue Max { get; set; }
[Parameter]
public TValue Min { get; set; }
[Parameter]
public bool Disabled { get; set; }
[Parameter]
public EventCallback<TValue> OnChange { get; set; }
private readonly bool _isNullable;
private readonly Func<TValue, TValue, TValue> _increaseFunc;
private readonly Func<TValue, TValue, TValue> _decreaseFunc;
private readonly Func<TValue, TValue, bool> _greaterThanFunc;
private readonly Func<TValue, TValue, bool> _equalToFunc;
private readonly Func<TValue, string, string> _toStringFunc;
private readonly Func<TValue, int, TValue> _roundFunc;
private readonly Func<string, TValue, TValue> _parseFunc;
private static readonly Type _surfaceType = typeof(TValue);
private static readonly Type[] _smallIntegerType = new Type[]
{
typeof(sbyte),
typeof(byte),
typeof(short),
typeof(ushort),
};
private static readonly Type[] _supportTypes = new Type[] {
typeof(sbyte),
typeof(byte),
typeof(short),
typeof(ushort),
typeof(int),
typeof(uint),
typeof(long),
typeof(ulong),
typeof(float),
typeof(double),
typeof(decimal)
};
private static readonly Dictionary<Type, object> _defaultMaximum = new Dictionary<Type, object>()
{
{ typeof(sbyte),sbyte.MaxValue },
{ typeof(byte), byte.MaxValue },
{ typeof(short),short.MaxValue },
{ typeof(ushort),ushort.MaxValue },
{ typeof(int),int.MaxValue },
{ typeof(uint),uint.MaxValue },
{ typeof(long),long.MaxValue },
{ typeof(ulong),ulong.MaxValue },
{ typeof(float),float.PositiveInfinity },
{ typeof(double),double.PositiveInfinity },
{ typeof(decimal),decimal.MaxValue },
};
private static readonly Dictionary<Type, object> _defaultMinimum = new Dictionary<Type, object>()
{
{ typeof(sbyte),sbyte.MinValue },
{ typeof(byte), byte.MinValue },
{ typeof(short),short.MinValue },
{ typeof(ushort),ushort.MinValue },
{ typeof(int),int.MinValue },
{ typeof(uint),uint.MinValue },
{ typeof(long),long.MinValue },
{ typeof(ulong),ulong.MinValue },
{ typeof(float),float.NegativeInfinity},
{ typeof(double),double.NegativeInfinity },
{ typeof(decimal),decimal.MinValue },
};
private static Type[] _floatTypes = new Type[] { typeof(float), typeof(double), typeof(decimal) };
private string _inputString;
private bool _focused;
public InputNumber()
{
_isNullable = _surfaceType.IsGenericType && _surfaceType.GetGenericTypeDefinition() == typeof(Nullable<>);
var underlyingType = _isNullable ? Nullable.GetUnderlyingType(_surfaceType) : _surfaceType;
if (!_supportTypes.Contains(underlyingType))
{
throw new NotSupportedException("InputNumber supports only numeric types.");
}
// 数字解析
ParameterExpression input = Expression.Parameter(typeof(string), "input");
ParameterExpression defaultValue = Expression.Parameter(typeof(TValue), "defaultValue");
MethodCallExpression inputParse = Expression.Call(null, typeof(InputNumberMath).GetMethod(nameof(InputNumberMath.Parse), new Type[] { typeof(string), typeof(TValue) }), input, defaultValue);
var lambdaParse = Expression.Lambda<Func<string, TValue, TValue>>(inputParse, input, defaultValue);
_parseFunc = lambdaParse.Compile();
//递增与递减
ParameterExpression piValue = Expression.Parameter(_surfaceType, "value");
ParameterExpression piStep = Expression.Parameter(_surfaceType, "step");
Expression<Func<TValue, TValue, TValue>> fexpAdd;
Expression<Func<TValue, TValue, TValue>> fexpSubtract;
if (_smallIntegerType.Contains(underlyingType))
{
fexpAdd = Expression.Lambda<Func<TValue, TValue, TValue>>(Expression.Convert(Expression.Add(Expression.Convert(piValue, typeof(int)), Expression.Convert(piStep, typeof(int))), _surfaceType), piValue, piStep);
fexpSubtract = Expression.Lambda<Func<TValue, TValue, TValue>>(Expression.Convert(Expression.Subtract(Expression.Convert(piValue, typeof(int)), Expression.Convert(piStep, typeof(int))), _surfaceType), piValue, piStep);
}
else
{
fexpAdd = Expression.Lambda<Func<TValue, TValue, TValue>>(Expression.Add(piValue, piStep), piValue, piStep);
fexpSubtract = Expression.Lambda<Func<TValue, TValue, TValue>>(Expression.Subtract(piValue, piStep), piValue, piStep);
}
_increaseFunc = fexpAdd.Compile();
_decreaseFunc = fexpSubtract.Compile();
//数字比较
ParameterExpression piLeft = Expression.Parameter(_surfaceType, "left");
ParameterExpression piRight = Expression.Parameter(_surfaceType, "right");
var fexpGreaterThan = Expression.Lambda<Func<TValue, TValue, bool>>(Expression.GreaterThan(piLeft, piRight), piLeft, piRight);
_greaterThanFunc = fexpGreaterThan.Compile();
var fexpEqualTo = Expression.Lambda<Func<TValue, TValue, bool>>(Expression.Equal(piLeft, piRight), piLeft, piRight);
_equalToFunc = fexpEqualTo.Compile();
//格式化
ParameterExpression format = Expression.Parameter(typeof(string), "format");
ParameterExpression value = Expression.Parameter(_surfaceType, "value");
Expression expValue;
if (_isNullable)
expValue = Expression.Property(value, "Value");
else
expValue = value;
MethodCallExpression expToString = Expression.Call(expValue, expValue.Type.GetMethod("ToString", new Type[] { typeof(string), typeof(IFormatProvider) }), format, Expression.Constant(CultureInfo.InvariantCulture));
var lambdaToString = Expression.Lambda<Func<TValue, string, string>>(expToString, value, format);
_toStringFunc = lambdaToString.Compile();
//四舍五入
if (_floatTypes.Contains(_surfaceType))
{
ParameterExpression num = Expression.Parameter(_surfaceType, "num");
ParameterExpression decimalPlaces = Expression.Parameter(typeof(int), "decimalPlaces");
MethodCallExpression expRound = Expression.Call(null, typeof(InputNumberMath).GetMethod(nameof(InputNumberMath.Round), new Type[] { _surfaceType, typeof(int) }), num, decimalPlaces);
var lambdaRound = Expression.Lambda<Func<TValue, int, TValue>>(expRound, num, decimalPlaces);
_roundFunc = lambdaRound.Compile();
}
if (_defaultMaximum.ContainsKey(underlyingType)) Max = (TValue)_defaultMaximum[underlyingType];
if (_defaultMinimum.ContainsKey(underlyingType)) Min = (TValue)_defaultMinimum[underlyingType];
_step = (TValue)Convert.ChangeType(1, underlyingType);
}
protected override void OnInitialized()
{
base.OnInitialized();
SetClass();
CurrentValue = Value ?? DefaultValue;
}
/// <summary>
/// Always return true, if input string is invalid, result = default, if input string is null or empty, result = DefaultValue
/// </summary>
/// <param name="value"></param>
/// <param name="result"></param>
/// <param name="validationErrorMessage"></param>
/// <returns></returns>
protected override bool TryParseValueFromString(string value, out TValue result, out string validationErrorMessage)
{
validationErrorMessage = null;
if (!Regex.IsMatch(value, @"^[+-]?\d*[.]?\d*$"))
{
result = Value;
return true;
}
if (value == "-" || value == "+")
{
value = "0";
}
if (!_isNullable)
{
if (string.IsNullOrWhiteSpace(value))
{
result = default;
}
else
{
result = _parseFunc(value, Value);
}
}
else
{
if (string.IsNullOrWhiteSpace(value))
{
result = default;
}
else
{
result = _parseFunc(value, Value);
}
}
return true;
}
private void SetClass()
{
ClassMapper.Clear()
.Add(PrefixCls)
.If($"{PrefixCls}-lg", () => Size == InputSize.Large)
.If($"{PrefixCls}-sm", () => Size == InputSize.Small)
.If($"{PrefixCls}-focused", () => _focused)
.If($"{PrefixCls}-disabled", () => this.Disabled);
}
private async Task Increase()
{
if (_isNullable && Value == null)
{
return;
}
if (_equalToFunc(Value, Max))
{
return;
}
await SetFocus();
var num = _increaseFunc(Value, _step);
await ChangeValueAsync(num);
}
private async Task Decrease()
{
if (_isNullable && Value == null)
{
return;
}
if (_equalToFunc(Value, Min))
{
return;
}
await SetFocus();
var num = _decreaseFunc(Value, _step);
await ChangeValueAsync(num);
}
private async Task SetFocus()
{
_focused = true;
await JsInvokeAsync(JSInteropConstants.Focus, Ref);
}
private void OnInput(ChangeEventArgs args)
{
_inputString = args.Value?.ToString();
}
private void OnFocus()
{
_focused = true;
CurrentValue = Value;
}
private async Task OnBlurAsync()
{
_focused = false;
if (_inputString == null)
{
await ChangeValueAsync(Value);
return;
}
_inputString = Parser != null ? Parser(_inputString) : Regex.Replace(_inputString, @"[^\+\-\d.\d]", "");
await ConvertNumberAsync(_inputString);
_inputString = null;
}
private async Task ConvertNumberAsync(string inputString)
{
_ = TryParseValueFromString(inputString, out TValue num, out _);
await ChangeValueAsync(num);
}
private async Task ChangeValueAsync(TValue value)
{
if (_greaterThanFunc(value, Max))
value = Max;
else if (_greaterThanFunc(Min, value))
value = Min;
if (_roundFunc == null)
{
CurrentValue = value;
}
else
{
CurrentValue = _decimalPlaces.HasValue ? _roundFunc(value, _decimalPlaces.Value) : value;
}
if (OnChange.HasDelegate)
{
await OnChange.InvokeAsync(value);
}
}
private string GetIconClass(string direction)
{
string cls;
if (direction == "up")
{
cls = $"ant-input-number-handler ant-input-number-handler-up " + (!_greaterThanFunc(Max, Value) ? "ant-input-number-handler-up-disabled" : string.Empty);
}
else
{
cls = $"ant-input-number-handler ant-input-number-handler-down " + (!_greaterThanFunc(Value, Min) ? "ant-input-number-handler-down-disabled" : string.Empty);
}
return cls;
}
protected override string FormatValueAsString(TValue value)
{
if (Formatter != null)
{
return Formatter(Value);
}
if (EqualityComparer<TValue>.Default.Equals(value, default) == false)
return _toStringFunc(value, _format);
else
return default(TValue)?.ToString();
}
}
}