fix footnote marks in summary stub + footmark render in cells_stubhead() in opt_interactive()

NEWS.md

@@ -17,7 +17,7 @@
 
 * `opt_interactive()` now works when columns are substituted with `sub_*()` (@olivroy, #1759). 
 
-* More support for `cells_stubhead()` styling in interactive tables.
+* More support for `cells_stubhead()` styling and footnotes in interactive tables.
 
 ## Bug fixes
 
@@ -43,6 +43,8 @@
 
 * Performance improvement for footnote rendering (@olivroy, #1818).
 
+* `tab_footnote()` now correctly adds footnote marks in the `cells_stub_summary()` and `cells_stub_grand_summary()` (@olivroy, #1832).
+
 * Fixed an issue where `tab_spanner_delim()` would fail to resolve a duplicate id (@olivroy, #1821).
 
 * `tidyselect::where()`, `tidyselect::all_of()`, `tidyselect::any_of()` are now re-exported by gt.

R/render_as_i_html.R

@@ -242,6 +242,8 @@ render_as_ihtml <- function(data, id) {
     # Create colDef row name with special ".rownames" from reactable.
     row_name_col_def <- list(reactable::colDef(
       name = rowname_label,
+      # make sure the cells_stubhead() footnote renders properly.
+      html = TRUE,
       style = list(
         fontWeight = stub_font_weight
       ),
@@ -371,6 +373,8 @@ render_as_ihtml <- function(data, id) {
       group_col_defs[[i]] <-
         reactable::colDef(
           name = group_label,
+          # make sure the cells_stubhead() footnote renders properly.
+          html = TRUE,
           style = list(
             `font-weight` = row_group_font_weight
           ),

R/z_utils_render_footnotes.R

@@ -712,8 +712,10 @@ apply_footnotes_to_summary <- function(data, context = "html") {
 
   list_of_summaries <- dt_summary_df_get(data = data)
   footnotes_tbl <- dt_footnotes_get(data = data)
+  # make sure rownames are recognized to add footnote marks
+  # to cells_stub_grand_summary() / cells_stub_summary() #1832
   # dplyr::coalesce()
-  footnotes_tbl$colname[is.na(footnotes_tbl$colname)] <- "rowname"
+  footnotes_tbl$colname[is.na(footnotes_tbl$colname)] <- "::rowname::"
   summary_df_list <- list_of_summaries$summary_df_display_list
 
   if ("summary_cells" %in% footnotes_tbl$locname) {

tests/testthat/test-i_html.R

@@ -114,6 +114,28 @@ test_that("Interactive tables won't fail when using different options", {
       cells_stubhead()
     ) %>% opt_interactive()
 
+  # footnote with cells_stubhead() works
+  tbl_gt_i_31 <- exibble %>%
+    gt(groupname_col = "group", row_group_as_column = TRUE) %>%
+    tab_stubhead(
+      "stubhead label"
+    ) %>%
+    tab_footnote(
+      footnote = "Stubhead foot",
+      locations = cells_stubhead()
+    ) %>%
+    opt_interactive()
+  # footnote with `cells_stubhead()` works
+  tbl_gt_i_32 <- exibble %>%
+    gt(rownames_to_stub = TRUE) %>%
+    tab_stubhead(
+      "stubhead label"
+    ) %>%
+    tab_footnote(
+      footnote = "Stubhead foot",
+      locations = cells_stubhead()
+    ) %>%
+    opt_interactive()
 
   capture_output(expect_no_error(tbl_gt_i_01))
   capture_output(expect_no_error(tbl_gt_i_02))
@@ -145,5 +167,7 @@ test_that("Interactive tables won't fail when using different options", {
   capture_output(expect_no_error(tbl_gt_i_28))
   capture_output(expect_no_error(tbl_gt_i_29))
   capture_output(expect_no_error(tbl_gt_i_30))
+  capture_output(expect_no_error(tbl_gt_i_31))
+  capture_output(expect_no_error(tbl_gt_i_32))
 
 })

tests/testthat/test-tab_footnote.R

@@ -261,6 +261,62 @@ test_that("tab_footnote() works for summary location", {
   )
 })
 
+test_that("tab_footnote() adds footnote marks for in the summary stub (#1832)", {
+  # Apply a footnote to the grand summary stub cells.
+  tab1 <-
+    tab_footnote(
+      data,
+      footnote = "Grand summary stub footnote.",
+      locations = list(
+        cells_stub_grand_summary(2)
+      )
+    )
+  # A footnote in the grand summary
+  tab2 <- tab_footnote(
+    data,
+    footnote = "Summary stub mean sum footnote.",
+    locations = list(
+      # FIXME doesn't work without specifying groups manually.
+      # Because not all groups have a summary
+      cells_stub_summary(groups = c(1, 3))
+    )
+  )
+  # Expect that the internal `footnotes_df` data frame will have
+  # its `locname` column entirely populated with `gramd_summary_cell`
+  expect_setequal(
+    dt_footnotes_get(tab1)$locname,
+    c("grand_summary_cells")
+  )
+  expect_setequal(
+    dt_footnotes_get(tab2)$locname,
+    c("summary_cells")
+  )
+  # Expect the colname to be NA
+  expect_setequal(
+    dt_footnotes_get(tab1)$colname,
+    NA_character_
+  )
+  # Expect tab2 to be in hp.
+  expect_setequal(
+    dt_footnotes_get(tab2)$colname,
+    NA_character_
+  )
+  # Expect that the internal `footnotes_df` data frame will have
+  # its `text` column entirely populated with the footnote text
+  expect_setequal(
+    unlist(dt_footnotes_get(tab1)$footnotes),
+    "Grand summary stub footnote."
+  )
+  expect_setequal(
+    unlist(dt_footnotes_get(tab2)$footnotes),
+    "Summary stub mean sum footnote."
+  )
+  # Make sure there is a footnote mark in the body (i.e. before the tfoot part)
+  expect_match_html(tab1, "gt_footnote_marks.+<tfoot class")
+  expect_match_html(tab2, "gt_footnote_marks.+<tfoot class")
+
+})
+
 test_that("tab_footnote() works in row groups", {
 
   # Apply a footnote to the `Mazdas` row group cell