r - Is it possible to fix the left and right sidebars in shinydashboardPlus to permanently be open?

Question

Is it possible to fix the left and right sidebars in shinydashboardPlus to permanently be open and disable the functionality to hide them?

I have seen some ways using JS or css to have them open on startup but not to keep permanently open.

library(shiny)
library(shinydashboard)
shinyApp(
  ui = dashboardPagePlus(
    header = dashboardHeaderPlus(
      enable_rightsidebar = TRUE,
      rightSidebarIcon = "gears"
    ),
    sidebar = dashboardSidebar(),
    body = dashboardBody(),
    rightsidebar = rightSidebar(
      background = "dark",
      rightSidebarTabContent(
        id = 1,
        title = "Tab 1",
        icon = "desktop",
        active = TRUE,
        sliderInput(
          "obs",
          "Number of observations:",
          min = 0, max = 1000, value = 500
        )
      )
    ),
    title = "Right Sidebar"
  ),
  server = function(input, output) { }
)

> sessionInfo()
R version 4.0.0 (2020-04-24)
Platform: x86_64-apple-darwin17.0 (64-bit)
Running under: macOS Catalina 10.15.6

Matrix products: default
BLAS:   /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib
LAPACK: /Library/Frameworks/R.framework/Versions/4.0/Resources/lib/libRlapack.dylib

locale:
[1] en_GB.UTF-8/en_GB.UTF-8/en_GB.UTF-8/C/en_GB.UTF-8/en_GB.UTF-8

attached base packages:
[1] stats4    parallel  stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
 [1] shinyjs_1.1              shinydashboardPlus_0.7.5 shinydashboard_0.7.1     shinyWidgets_0.5.3      
 [5] dendextend_1.13.4        tidyr_1.1.0              patchwork_1.0.1          ggplot2_3.3.1           
 [9] shinyhelper_0.3.2        colorspace_1.4-1         colourpicker_1.0         shinythemes_1.1.2       
[13] DT_0.13                  shiny_1.4.0.2            dplyr_1.0.0              MSnbase_2.14.2          
[17] ProtGenerics_1.20.0      S4Vectors_0.26.1         mzR_2.22.0               Rcpp_1.0.4.6            
[21] Biobase_2.48.0           BiocGenerics_0.34.0  

Answer 1

After forcing the rightSidebar to be opened on startup it should be sufficient to hide the toggle button to keep it open:

library(shiny)
library(shinydashboard)
library(shinydashboardPlus)

shinyApp(
  ui = tags$body(class="skin-blue sidebar-mini control-sidebar-open", dashboardPagePlus(
    header = dashboardHeaderPlus(
      enable_rightsidebar = TRUE,
      rightSidebarIcon = "gears"
    ),
    sidebar = dashboardSidebar(),
    body = dashboardBody(
      tags$script(HTML(
        '$("body > div > header > nav > div:nth-child(4) > ul > li > a").hide();
         document.getElementsByClassName("sidebar-toggle")[0].style.visibility = "hidden";'
      )),
    ),
    rightsidebar = rightSidebar(
      background = "dark",
      rightSidebarTabContent(
        id = 1,
        title = "Tab 1",
        icon = "desktop",
        active = TRUE,
        sliderInput(
          "obs",
          "Number of observations:",
          min = 0, max = 1000, value = 500
        )
      )
    ),
    title = "Right Sidebar"
  )),
  server = function(input, output) {}
)

Here is how you can copy the selector of the element (after rightclick, inspect) using google chrome:

Here you can find a related question (hiding the element on the server side).