如何在kotlin-js react应用程序中导入带有子级的app引导组件

Question

我想使用一个引导卡组件在一个反应网站创建的kotlin。该应用程序使用kotlin-react包装器和react引导库。

put引导文档说使用来放置内容。

<Card>
  <Card.Body>This is some text within a card body.</Card.Body>
</Card>

到目前为止，我成功地将Card JavaScript模块导入到kotlin-js中。

@file:JsModule("react-bootstrap/Card")

import react.RClass
import react.RProps


@JsName("default")
external val Card: RClass<RProps>

有了这个，我可以使用RComponent中的卡。

class Content : RComponent<RProps, RState>() {
    override fun RBuilder.render() {
        Card {
           +"Hello World"
        }
    }
}

呈现给：

<div class="card">
  Hello World
</div>

另外，我还需要CardBody组件。

就像这样：

class Content : RComponent<RProps, RState>() {
    override fun RBuilder.render() {
        Card {
            CardBody {
                + "Hello World"
            }
        }
    }
}

，但是CardBody不是一个单独的react引导组件，它可以像Card组件一样导入。它是Card组件中的一个值。

类型记录定义文件Card.d.ts如下所示：

import CardImg from './CardImg';
import { BsPrefixPropsWithChildren, BsPrefixRefForwardingComponent } from './helpers';
import { Color, Variant } from './types';
declare const CardBody: BsPrefixRefForwardingComponent<any, {}>;
declare const CardTitle: BsPrefixRefForwardingComponent<any, {}>;
declare const CardSubtitle: BsPrefixRefForwardingComponent<any, {}>;
declare const CardLink: BsPrefixRefForwardingComponent<any, {}>;
declare const CardText: BsPrefixRefForwardingComponent<any, {}>;
declare const CardHeader: BsPrefixRefForwardingComponent<any, {}>;
declare const CardFooter: BsPrefixRefForwardingComponent<any, {}>;
declare const CardImgOverlay: BsPrefixRefForwardingComponent<any, {}>;
export interface CardProps extends BsPrefixPropsWithChildren {
    bg?: Variant;
    text?: Color;
    border?: Variant;
    body?: boolean;
}
declare type Card = BsPrefixRefForwardingComponent<'div', CardProps> & {
    Img: typeof CardImg;
    Title: typeof CardTitle;
    Subtitle: typeof CardSubtitle;
    Body: typeof CardBody;
    Link: typeof CardLink;
    Text: typeof CardText;
    Header: typeof CardHeader;
    Footer: typeof CardFooter;
    ImgOverlay: typeof CardImgOverlay;
};
declare const Card: Card;
export default Card;

如果我使用dukat将TypeScript定义文件转换为Kotlin声明。它输出一个Card.Module_react bootstrap.kt文件。

@file:JsModule("react-bootstrap")
@file:JsNonModule
@file:Suppress("INTERFACE_WITH_SUPERCLASS", "OVERRIDING_FINAL_MEMBER", "RETURN_TYPE_MISMATCH_ON_OVERRIDE", "CONFLICTING_OVERLOADS")

import kotlin.js.*
import kotlin.js.Json
import org.khronos.webgl.*
import org.w3c.dom.*
import org.w3c.dom.events.*
import org.w3c.dom.parsing.*
import org.w3c.dom.svg.*
import org.w3c.dom.url.*
import org.w3c.fetch.*
import org.w3c.files.*
import org.w3c.notifications.*
import org.w3c.performance.*
import org.w3c.workers.*
import org.w3c.xhr.*

external var CardBody: BsPrefixRefForwardingComponent<Any, Any>

external var CardTitle: BsPrefixRefForwardingComponent<Any, Any>

external var CardSubtitle: BsPrefixRefForwardingComponent<Any, Any>

external var CardLink: BsPrefixRefForwardingComponent<Any, Any>

external var CardText: BsPrefixRefForwardingComponent<Any, Any>

external var CardHeader: BsPrefixRefForwardingComponent<Any, Any>

external var CardFooter: BsPrefixRefForwardingComponent<Any, Any>

external var CardImgOverlay: BsPrefixRefForwardingComponent<Any, Any>

external interface CardProps : BsPrefixPropsWithChildren {
    var bg: dynamic /* String | String | String | String | String | String | String | String | String? */
        get() = definedExternally
        set(value) = definedExternally
    var text: String? /* 'primary' | 'secondary' | 'success' | 'danger' | 'warning' | 'info' | 'dark' | 'light' | 'white' | 'muted' */
        get() = definedExternally
        set(value) = definedExternally
    var border: dynamic /* String | String | String | String | String | String | String | String | String? */
        get() = definedExternally
        set(value) = definedExternally
    var body: Boolean?
        get() = definedExternally
        set(value) = definedExternally
}

external interface `T$0` {
    var Img: Any
    var Title: Any
    var Subtitle: Any
    var Body: Any
    var Link: Any
    var Text: Any
    var Header: Any
    var Footer: Any
    var ImgOverlay: Any
}

@JsName("default")
external var Card: BsPrefixRefForwardingComponent<String /* 'div' */, CardProps> /* BsPrefixRefForwardingComponent<String /* 'div' */, CardProps> & `T$0` */

但这不能编译。

1. 如何为组件编写kotlin声明文件，该组件中包含组件子组件而不是单独的组件文件？
2. 如何在RBuilder.render()方法中使用该组件？

Answer 1

似乎是看了打字稿的解密

文件: Card.kt

@file:JsModule("react-bootstrap/Card")

package bootstrap

import react.RClass
import react.RProps

@JsName("default")
external val Card: RClass<RProps>

文件: Card.ktx.kt (因为在JsModule中不能有非外部声明)

package bootstrap

import react.RClass
import react.RProps

val CardBody : RClass<RProps> = Card.asDynamic().Body

val CardLink : RClass<RProps> = Card.asDynamic().Link

用法

fun RBuilder.MyComp(){
  Card {
    CardBody {+"Card body goes here" }
  }
}

应该行得通。

Answer 2

如果您想对外部元素使用css，您可以这样做，

首先，您需要让元素支持来实现WithClassName接口：

@file:JsModule("react-bootstrap")
@file:JsNonModule

import react.RProps
import react.RClass
import react.dom.WithClassName


@JsName("Card")
external val bsCard : RClass<bsCardProps>

external interface bsCardProps: WithClassName

然后在另一个.kt文件中使用样式函数，如下所示：

import styled.styled


val styledBsCard = styled(bsCard)

现在，像样式元素一样使用styledBsCard：

override fun RBuilder.render() {
styledBsCard {
            css {
                width = 200.px
                backgroundColor = Color.blue
                marginLeft = 100.px
            }
            //something other elements
        }
}