R Shiny table 如何在可扩展行中正确格式化 html 代码

问题描述

在我闪亮的应用程序中，我显示了一个带有可扩展行的表格（可响应）。我想更改某些单词的背景颜色，因此我使用 html span。它适用于常规行中的文本，在可扩展行中但只显示纯 html 代码。

我为两列都设置了 html = TRUE，但没有正确显示。我如何使它工作？

app.R

library(shiny)
library(htmltools)
library(reactable)

ui <- fluidPage(
  reactableOutput("table")
)
server <- function(input,output) {
  
  output$table <- renderReactable({
    df = data.frame("title" = c("This is the <span style='background-color:yellow;'>Title</span>","This is a longer Title"),"abstract" = c("This is the <span style='background-color:yellow;'>abstract</span>","This is an even longer abstract"))
    reactable(
      df,columns = list(
        abstract = colDef(show = F,html = TRUE),title = colDef( html = TRUE)
      ),details = function(index) {
        htmltools::div(style= "background-color:white",htmltools::tags$div(style= "background-color:#eee; padding: .9em; border-color: #ffe;",df[index,"abstract"])
                       
        )
      }
    )
  })
  
}

解决方法

使用 here 中的 html 函数，我们可以做到 -

library(shiny)
library(htmltools)
library(reactable)


html <- function(x,inline = FALSE) {
  container <- if (inline) htmltools::span else htmltools::div
  container(dangerouslySetInnerHTML = list("__html" = x))
}

ui <- fluidPage(
  reactableOutput("table")
)
server <- function(input,output) {
  
  output$table <- renderReactable({
    df = data.frame("title" = c("This is the <span style='background-color:yellow;'>Title</span>","This is a longer Title"),"abstract" = c("This is the <span style='background-color:yellow;'>abstract</span>","This is an even longer abstract"))
    reactable(
      df,columns = list(
        abstract = colDef(show = F,html = TRUE),title = colDef( html = TRUE)
      ),details = function(index) {
        htmltools::div(style= "background-color:white",htmltools::tags$div(style= "background-color:#eee; padding: .9em; border-color: #ffe;",html(df[index,"abstract"]))
                       
        )
      }
    )
  })
}

shinyApp(ui,server)