@namespace AntDesign
@inherits AntDomComponentBase

@{
    var prefixCls = $"{RootPrefixCls}-options";
    RenderFragment changeSelect = null;
    RenderFragment goInput = null;
    RenderFragment gotoButton = null;

    if (!ChangeSize.HasDelegate && !QuickGo.HasDelegate)
    {
        return;
    }

    var pageSizeOptions = GetPageSizeOptions();

    if (ChangeSize.HasDelegate)
    {
        changeSelect =
            @<Select
                 TItem="int"
                 TItemValue="int"
                 Disabled="@Disabled"
                 Style="width: auto"
                 Size="@(IsSmall ? "small" : "default")"
                 Class="@($"{prefixCls}-size-changer")"
                 DefaultValue="@(PageSize > 0 ? PageSize : pageSizeOptions[0])"
                 OnSelectedItemChanged="@(i => {if (ChangeSize.HasDelegate)ChangeSize.InvokeAsync(i);})">
                <SelectOptions>
                    @foreach(var opt in pageSizeOptions)
                    {
                        <SelectOption TItem="int" TItemValue="int" Label="@BuildOptionText(opt)" Value="@opt" />
                    }
                </SelectOptions>
            </Select>;
    }

    if (QuickGo.HasDelegate)
    {
        if (GoButton.HasValue)
        {
            var goBtn = GoButton.Value;
            if (goBtn.IsT0 && goBtn.AsT0 == true)
            {
                gotoButton =
                    @<button
                         type="button"
                         @onclick="Go"
                         @onkeyup="Go"
                         disabled="@Disabled"
                         class="@prefixCls-quick-jumper-button">
                        @Locale.JumpToConfirm
                    </button>;
            }
            else if (goBtn.IsT1)
            {
                gotoButton =
                    @<span @onclick="Go" @onkeyup="Go">
                        @goBtn.AsT1
                    </span>;
            }
        }
        goInput =
            @<div class="@prefixCls-quick-jumper">
                @Locale.JumpTo
                <input
                    disabled="@Disabled"
                    type="text"
                    value="@_goInputText"
                    @onchange="HandleChange"
                    @onkeyup="Go"
                    @onblur="HandleBlur"/>
                @Locale.Page
                @gotoButton
            </div>;
    }

    <li class="@prefixCls">
        @changeSelect
        @goInput
    </li>

}