如何将带有子项的 react-bootstrap 组件导入 kotlin-js react app

Question

我想在使用 kotlin-js 创建的 React 网站中使用 bootstrap Card 组件。该应用程序使用 kotlin-react 包装器和 react-bootstrap 库。

react-bootstrap 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，我已经成功地将 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，我可以在 RComponent 中使用卡片。

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

什么呈现给：

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

我还需要CardBody组件。

像这样：

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

But the CardBody is not a separate react-bootstrap component which could be imported like the Card component. It is a value inside the Card component.

typescript 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[=17=]` {
    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[=17=]` */

但这不能编译。

如何为内部有子组件而不是单独的组件文件的组件编写 kotlin 声明文件？
如何在RBuilder.render()方法中使用这个组件？

Answer 1

阅读 Typescript declerations，似乎

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（因为你不能在 JsModule 中有非外部声明）

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" }
  }
}

应该可以。

Answer 2

如果你想对外部元素使用css，你可以这样做，

首先你需要让你的元素属性实现 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
        }
}

如何将带有子项的 react-bootstrap 组件导入 kotlin-js react app

How to import react-bootstrap component with children into kotlin-js react app

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