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我想在使用 kotlin-js 创建的反应网站中使用引导卡组件。该应用程序使用 kotlin-react 包装器和 react-bootstrap 库。

react-bootstrap 文档说使用 <Card.Body> 来放置内容。

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

到目前为止，我设法将 Card JavaScript 模块导入 kotlin-js。

@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 Card。

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

导致：

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

我还需要 CardBody 组件。

像这样的东西：

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

但是 CardBody 不是一个单独的 react-bootstrap 组件，可以像 Card 组件一样导入。它是 Card 组件内部的一个值。

打字稿定义文件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` */

但这不会编译。

  1. 如何为内部包含子组件而不是单独的组件文件的组件编写 kotlin 声明文件？
  2. 如何在 RBuilder.render() 方法中使用这个组件？
4

2 回答 2

4

阅读打字稿声明，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" }
  }
}

应该管用。

于 2020-08-03T05:06:14.250 回答
0

如果您想将 css 用于外部元素，您可以这样做，

首先你需要让你的元素道具来实现 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)

现在使用 styledBsCard 之类的样式元素：

override fun RBuilder.render() {
styledBsCard {
            css {
                width = 200.px
                backgroundColor = Color.blue
                marginLeft = 100.px
            }
            //something other elements
        }
}
于 2021-05-26T05:54:24.810 回答