7 previewer@main

DESCRIPTION

@@ -11,17 +11,17 @@ BugReports: https://github.com/insightsengineering/teal.reporter/issues
 Imports:
     checkmate,
     grid,
+    knitr,
     R6,
+    rmarkdown,
+    yaml,
     shiny,
     shinyWidgets,
-    yaml,
     zip
 Suggests:
     ggplot2,
-    knitr,
     lattice,
     png,
-    rmarkdown,
     rtables,
     testthat
 VignetteBuilder:

NAMESPACE

@@ -9,6 +9,8 @@ export(add_card_button_ui)
 export(as_yaml_auto)
 export(download_report_button_srv)
 export(download_report_button_ui)
+export(reporter_previewer_srv)
+export(reporter_previewer_ui)
 export(reset_report_button_srv)
 export(reset_report_button_ui)
 export(rmd_output_arguments)

R/AddCardModule.R

@@ -94,6 +94,7 @@ add_card_button_srv <- function(id, reporter, card_fun) {
         }
         checkmate::assert_class(card, "ReportCard")
         reporter$append_cards(list(card))
+        reporter$increment_reactive_add_card()
         shiny::showNotification(sprintf("The card added successfully."))
         shiny::removeModal()
       })

R/Previewer.R

@@ -0,0 +1,259 @@
+teal_reporter_previewer <- function(label, ...) {
+  args <- list(...)
+  structure(
+    list(
+      label = label,
+      server = reporter_previewer_srv, ui = reporter_previewer_ui,
+      server_args = list(), ui_args = list()
+    ),
+    class = "teal_module"
+  )
+}
+
+
+#' Reporter Previewer User Interface
+#' @description reporter previewer user interface to visualize and manipulate the already added report Cards
+#' @param id `character`
+#' @param rmd_output `character` vector with `rmarkdown` output types,
+#' by default all possible `c("pdf_document", "html_document", "powerpoint_presentation", "word_document")`.
+#' @param rmd_yaml_args `named list` vector with `Rmd` `yaml` header fields and their default values.
+#' Default `list(author = "NEST", title = "Report", date = Sys.Date(), output = "html_document")`.
+#' Please update only values at this moment.
+#' @export
+reporter_previewer_ui <- function(id, rmd_output = c(
+                                    "html_document", "pdf_document",
+                                    "powerpoint_presentation", "word_document"
+                                  ),
+                                  rmd_yaml_args = list(
+                                    author = "NEST", title = "Report",
+                                    date = as.character(Sys.Date()), output = "html_document"
+                                  )) {
+  ns <- shiny::NS(id)
+  encoding <- shiny::tagList(
+    shiny::tags$h3("Download the Report"),
+    shiny::tags$hr(),
+    shiny::textInput(ns("author"), label = "Author:", value = rmd_yaml_args$author),
+    shiny::textInput(ns("title"), label = "Title:", value = rmd_yaml_args$title),
+    shiny::dateInput(ns("date"), "Date:", value = rmd_yaml_args$date),
+    shiny::tags$div(
+      shinyWidgets::pickerInput(
+        inputId = ns("output"),
+        label = "Choose a document type: ",
+        choices = rmd_output,
+        selected = rmd_yaml_args$output
+      )
+    ),
+    shiny::tags$a(
+      id = ns("download_data_prev"),
+      class = "btn btn-primary shiny-download-link",
+      href = "",
+      target = "_blank",
+      download = NA,
+      shiny::icon("download"),
+      "Download Report"
+    )
+  )
+
+  shiny::fluidRow(
+    add_previewer_js(ns),
+    add_previewer_css(),
+    shiny::tags$div(
+      shiny::tags$div(
+        class = "col-md-3",
+        shiny::tags$div(class = "well", encoding)
+      ),
+      shiny::tags$div(
+        class = "col-md-9",
+        shiny::uiOutput(ns("pcards"))
+      )
+    )
+  )
+}
+
+#' Reporter Previewer Server
+#' @description server supporting the functionalities of the reporter previewer
+#' @param id `character`
+#' @param reporter `Reporter` instance
+#' @param notification `logical`
+#' @param rmd_yaml_args `named list` vector with `Rmd` `yaml` header fields and their default values.
+#' Default `list(author = "NEST", title = "Report", date = Sys.Date(), output = "html_document")`.
+#' Please update only values at this moment.
+#' @export
+reporter_previewer_srv <- function(id, reporter, notification = TRUE, rmd_yaml_args = list(
+                                     author = "NEST", title = "Report",
+                                     date = as.character(Sys.Date()), output = "html_document"
+                                   )) {
+  checkmate::assert_class(reporter, "Reporter")
+  shiny::moduleServer(
+    id,
+    function(input, output, session) {
+      ns <- session$ns
+
+      output$pcards <- shiny::renderUI({
+        reporter$get_reactive_add_card()
+        input$card_remove_id
+        input$card_down_id
+        input$card_up_id
+
+        cards <- reporter$get_cards()
+        cards_names <- names(cards)
+
+        if (length(cards)) {
+          shiny::tags$div(
+            class = "panel-group", id = "accordion",
+            lapply(seq_along(cards), function(ic) {
+              shiny::tags$div(
+                id = paste0("panel_card_", ic),
+                class = "panel panel-default",
+                shiny::tags$div(
+                  class = "panel-heading", style = "overflow:auto;",
+                  shiny::tags$h4(
+                    class = "panel-title",
+                    shiny::tags$span(
+                      shiny::tags$span(
+                        class = "preview_card_control",
+                        nav_previewer_icon("card_remove_id", "remove", ic),
+                        nav_previewer_icon("card_up_id", "arrow-up", ic),
+                        nav_previewer_icon("card_down_id", "arrow-down", ic)
+                      ),
+                      shiny::tags$a(
+                        class = "accordion-toggle",
+                        style = "display: block;padding: 10px 15px;margin: -10px -15px;",
+                        `data-toggle` = "collapse", `data-parent` = "#accordion", href = paste0("#collapse", ic),
+                        shiny::tags$h4(paste0("Card ", ic, ": ", cards[[ic]]$get_name()), shiny::icon("caret-down"))
+                      )
+                    )
+                  )
+                ),
+                shiny::tags$div(
+                  id = paste0("collapse", ic), class = "panel-collapse collapse out",
+                  shiny::tags$div(
+                    class = "panel-body",
+                    shiny::tags$div(
+                      id = paste0("card", ic),
+                      lapply(
+                        cards[[ic]]$get_content(),
+                        function(b) {
+                          resolve_block_to_html(b, cards_names[ic])
+                        }
+                      )
+                    )
+                  )
+                )
+              )
+            })
+          )
+        } else {
+          shiny::tags$p(style = "color:red;", shiny::tags$strong("No Cards added"))
+        }
+      })
+
+      shiny::observeEvent(input$card_remove_id, {
+        reporter$remove_cards(input$card_remove_id)
+      })
+
+      shiny::observeEvent(input$card_up_id, {
+        if (input$card_up_id > 1) {
+          reporter$swap_cards(
+            as.integer(input$card_up_id),
+            as.integer(input$card_up_id - 1)
+          )
+        }
+      })
+
+      shiny::observeEvent(input$card_down_id, {
+        if (input$card_down_id < length(reporter$get_cards())) {
+          reporter$swap_cards(
+            as.integer(input$card_down_id),
+            as.integer(input$card_down_id + 1)
+          )
+        }
+      })
+
+      output$download_data_prev <- shiny::downloadHandler(
+        filename = function() {
+          paste("report_", format(Sys.time(), "%y%m%d%H%M%S"), ".zip", sep = "")
+        },
+        content = function(file) {
+          if (notification) {
+            shiny::showNotification(sprintf("Rendering and Downloading a document."))
+          }
+          input_list <- lapply(names(rmd_yaml_args), function(x) input[[x]])
+          names(input_list) <- names(rmd_yaml_args)
+          report_render_and_compress(reporter, input_list, file)
+        },
+        contentType = "application/zip"
+      )
+    }
+  )
+}
+
+resolve_block_to_html <- function(b, name) {
+  block_class <- class(b)[1]
+  b_content <- b$get_content()
+  switch(block_class,
+    TextBlock = {
+      switch(b$get_style(),
+        header1 = shiny::tags$h1(b_content),
+        header2 = shiny::tags$h2(b_content),
+        header3 = shiny::tags$h3(b_content),
+        header4 = shiny::tags$h4(b_content),
+        verbatim = shiny::tags$pre(b_content),
+        b_content
+      )
+    },
+    PictureBlock = shiny::tags$img(src = knitr::image_uri(b_content)),
+    TableBlock = {
+      b_table <- readRDS(b_content)
+      shiny::tags$pre(
+        paste(utils::capture.output(print(b_table)), collapse = "\n")
+      )
+    },
+    NewpageBlock = shiny::tags$br(),
+    ""
+  )
+}
+
+add_previewer_css <- function() {
+  shiny::tags$head(shiny::tags$style("
+                      span.preview_card_control  i:hover {
+                        color: blue;
+                      }
+                       "))
+}
+
+add_previewer_js <- function(ns) {
+  shiny::tags$head(shiny::tags$script(
+    sprintf('
+          $(document).ready(function(event) {
+            $("body").on("click", "span.card_remove_id", function() {
+              var val = $(this).data("cardid");
+              let msg_confirm = "Do you really want to remove the card " + val + " from the Report?";
+              var answer = confirm(msg_confirm);
+              if (answer) {
+                Shiny.setInputValue("%s", val, {priority: "event"});
+                $("#panel_card_" + val).remove();
+              }
+             });
+
+            $("body").on("click", "span.card_up_id", function() {
+              var val = $(this).data("cardid");
+              Shiny.setInputValue("%s", val, {priority: "event"});
+              });
+
+             $("body").on("click", "span.card_down_id", function() {
+              var val = $(this).data("cardid");
+              Shiny.setInputValue("%s", val, {priority: "event"});
+             });
+         })
+         ', ns("card_remove_id"), ns("card_up_id"), ns("card_down_id"))
+  ))
+}
+
+nav_previewer_icon <- function(name, icon_name, idx) {
+  shiny::tags$span(
+    class = name, `data-cardid` = idx,
+    style = "float:right;margin-left:10px;margin-right:10px;margin-top:10px;color:#337ab7;",
+    shiny::icon(icon_name, "fa-2x", verify_fa = FALSE)
+  )
+}

R/ReportCard.R

@@ -129,12 +129,31 @@ ReportCard <- R6::R6Class( # nolint: object_name_linter.
     #'
     get_chr_converters = function() {
       private$chr_converters
+    },
+    #' @description get the Card name
+    #'
+    #' @return `character` a Card name
+    #' @examples
+    #' ReportCard$new()$set_name("NAME")$get_name()
+    get_name = function() {
+      private$name
+    },
+    #' @description set the Card name
+    #'
+    #' @param name `character` a Card name
+    #' @return invisibly self
+    #' @examples
+    #' ReportCard$new()$set_name("NAME")$get_name()
+    set_name = function(name) {
+      checkmate::assert_string(name)
+      private$name <- name
+      invisible(self)
     }
   ),
   private = list(
     content = list(),
     chr_converters = list(),
-
+    name = character(0),
     # @description The copy constructor.
     #
     # @param name the name of the field