[Bug]: ggplot2_args not behaving properly with teal_data_module

[donyunardi]

What happened?

A bug happened!

ggplot2_args throws an error when teal app using using teal_data_module().

Code

library(teal)

tdm <- teal_data_module(
  ui = function(id) {
    ns <- NS(id)
    actionButton(ns("submit"), label = "Load data")
  },
  server = function(id) {
    moduleServer(id, function(input, output, session) {
      eventReactive(input$submit, {
        data <- within(
          teal_data(),
          {
            iris <- iris
            mtcars <- mtcars
          }
        )
        data
      })
    })
  }
)

app <- init(
  data = tdm,
  modules = modules(
    tm_g_distribution(
      dist_var = data_extract_spec(
        dataname = "iris",
        select = select_spec(variable_choices("iris"), "Petal.Length")
      ),
      ggplot2_args = teal.widgets::ggplot2_args(
        theme = list(text = element_text(size = 20))
      )
    )
  ),
  title = "my teal app"
)

shinyApp(app$ui, app$server)

This is because R immediately runs element_text(size = 20).

One way to fix it from user's perspective is to quote() it.

      ggplot2_args = teal.widgets::ggplot2_args(
        theme = list(text = quote(element_text(size = 20)))
      )

Is this the only way to do this or is there a better way?

sessionInfo()

r$> sessionInfo()
R version 4.5.2 (2025-10-31)
Platform: aarch64-apple-darwin20
Running under: macOS Sequoia 15.7.3

Matrix products: default
BLAS:   /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib 
LAPACK: /Library/Frameworks/R.framework/Versions/4.5-arm64/Resources/lib/libRlapack.dylib;  LAPACK version 3.12.1

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

time zone: America/Los_Angeles
tzcode source: internal

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

other attached packages:
 [1] ggpp_0.5.8-1               magrittr_2.0.4             tibble_3.3.0               tidyr_1.3.1                dplyr_1.1.4               
 [6] teal.modules.general_0.6.0 teal.transform_0.7.1.9001  ggplot2_4.0.0              teal_1.1.0.9017            teal.slice_0.7.1.9004     
[11] teal.data_0.8.0.9002       teal.code_0.7.1.9000       shiny_1.12.1              

loaded via a namespace (and not attached):
 [1] shinyvalidate_0.1.3      gtable_0.3.6             xfun_0.52                bslib_0.9.0              shinyjs_2.1.0            htmlwidgets_1.6.4       
 [7] teal.widgets_0.5.1.9005  formatters_0.5.12        vctrs_0.6.5              tools_4.5.2              crosstalk_1.2.1          generics_0.1.4          
[13] pkgconfig_2.0.3          mirai_2.5.0              checkmate_2.3.2          RColorBrewer_1.1-3       S7_0.2.1                 lifecycle_1.0.4         
[19] compiler_4.5.2           farver_2.1.2             textshaping_1.0.1        fontawesome_0.5.3        httpuv_1.6.16            shinyWidgets_0.9.0      
[25] htmltools_0.5.9          sass_0.4.10              yaml_2.3.10              later_1.4.4              pillar_1.11.1            crayon_1.5.3            
[31] jquerylib_0.1.4          MASS_7.3-65              DT_0.33                  cachem_1.1.0             rtables_0.6.15           mime_0.13               
[37] tidyselect_1.2.1         digest_0.6.39            stringi_1.8.7            purrr_1.0.4              labeling_0.4.3           fastmap_1.2.0           
[43] grid_4.5.2               cli_3.6.5                logger_0.4.1             bsicons_0.1.2            withr_3.0.2              teal.reporter_0.6.0.9002
[49] scales_1.4.0             promises_1.5.0           backports_1.5.0          otel_0.2.0               gridExtra_2.3            ragg_1.4.0              
[55] memoise_2.0.1            evaluate_1.0.5           knitr_1.50               shinycssloaders_1.1.0    rlang_1.1.6              nanonext_1.7.0          
[61] Rcpp_1.1.0               polynom_1.4-1            xtable_1.8-4             glue_1.8.0               renv_1.1.4               formatR_1.14            
[67] jsonlite_2.0.0           teal.logger_0.4.1.9002   R6_2.6.1                 systemfonts_1.2.3        fs_1.6.6

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