From 4321350415bdb96db064f144344db7a096f2814d Mon Sep 17 00:00:00 2001
From: go_gonzo <dawid.kaledkowski@gmail.com>
Date: Thu, 21 Nov 2024 11:55:25 +0100
Subject: [PATCH] data_table as a brushing table

---
 R/tm_data_table.R  | 15 ++++++++++-----
 R/tm_p_swimlane2.r | 40 +++++++++++++++++++++++++++++++++-------
 2 files changed, 43 insertions(+), 12 deletions(-)

diff --git a/R/tm_data_table.R b/R/tm_data_table.R
index 583707288..96b0345ca 100644
--- a/R/tm_data_table.R
+++ b/R/tm_data_table.R
@@ -181,11 +181,16 @@ ui_page_data_table <- function(id,
 # Server page module
 srv_page_data_table <- function(id,
                                 data,
-                                datasets_selected,
-                                variables_selected,
-                                dt_args,
-                                dt_options,
-                                server_rendering,
+                                variables_selected = list(),
+                                datasets_selected = character(0),
+                                dt_args = list(),
+                                dt_options = list(
+                                  searching = FALSE,
+                                  pageLength = 30,
+                                  lengthMenu = c(5, 15, 30, 100),
+                                  scrollX = TRUE
+                                ),
+                                server_rendering = FALSE,
                                 filter_panel_api) {
   checkmate::assert_class(data, "reactive")
   checkmate::assert_class(isolate(data()), "teal_data")
diff --git a/R/tm_p_swimlane2.r b/R/tm_p_swimlane2.r
index 8757ad4a0..1b5f08944 100644
--- a/R/tm_p_swimlane2.r
+++ b/R/tm_p_swimlane2.r
@@ -16,8 +16,7 @@ ui_p_swimlane2 <- function(id) {
   ns <- NS(id)
   shiny::tagList(
     plotly::plotlyOutput(ns("plot")),
-    verbatimTextOutput(ns("selecting")),
-    shinyjs::hidden(tableOutput(ns("table")))
+    ui_page_data_table(ns("brush_tables"))
   )
 }
 
@@ -30,17 +29,44 @@ srv_p_swimlane2 <- function(id,
     plotly_q <- reactive({
       plotly_call <- .make_plotly_call(specs = plotly_specs)
       code <- substitute(
-        p <- plotly_call %>% plotly::event_register("plotly_selecting"),
+        p <- plotly_call,
         list(plotly_call = plotly_call)
       )
       eval_code(data(), code = code)
     })
 
-    output$plot <- plotly::renderPlotly(plotly_q()$p)
+    output$plot <- plotly::renderPlotly(plotly::event_register(plotly_q()$p, "plotly_selected"))
 
-    output$selecting <- renderPrint({
-      d <- plotly::event_data("plotly_selecting")
-      if (is.null(d)) "Brush points appear here (double-click to clear)" else d
+
+    brush_filter_call <- reactive({
+      d <- plotly::event_data("plotly_selected")
+      req(d)
+      calls <- lapply(plotly_specs, function(spec) {
+        substitute(
+          dataname <- dplyr::filter(dataname, var_x %in% levels_x, var_y %in% levels_y),
+          list(
+            dataname = spec$data,
+            var_x = str2lang(all.vars(spec$x)),
+            var_y = str2lang(all.vars(spec$y)),
+            levels_x = d$x,
+            levels_y = d$y
+          )
+        )
+      })
+      unique(calls)
+    })
+
+    brush_filtered_data <- reactive({
+      if (is.null(brush_filter_call())) {
+        shinyjs::hide("brush_tables")
+      } else {
+        shinyjs::hide("show_tables")
+        eval_code(plotly_q(), as.expression(brush_filter_call()))
+      }
+    })
+
+    observeEvent(brush_filtered_data(), once = TRUE, {
+      srv_page_data_table("brush_tables", data = brush_filtered_data, filter_panel_api = filter_panel_api)
     })
   })
 }