R/mod_settings.R

In samWieczorek/Prostar2: PKG_TITLE

# Module UI

#' @title   mod_settings_ui and mod_settings_server
#' 
#' @description  A shiny Module.
#'
#' @param id shiny id
#' 
#' @param input internal
#' 
#' @param output internal
#' 
#' @param session internal
#'
#' @rdname mod_settings
#'
#' @keywords internal
#' 
#' @export 
#' 
#' @importFrom shiny NS tagList 
#' 
mod_settings_ui <- function(id){
  ns <- NS(id)
  tagList(
    tabsetPanel(
      tabPanel("Miscallenous",
               div(
                 div(
                   style="display:inline-block; vertical-align: middle; padding-right: 20px;",
                   mod_popover_for_help_ui(ns("modulePopover_numPrecision"))
                 ),
                 div(
                   style="display:inline-block; vertical-align: middle;",
                   uiOutput(ns("settings_nDigits_UI"))
                 )
               ),
               br(),hr(),
               tags$p(style="font-size: 18px;", tags$b("Figure export options")),
               tagList(
                 tags$div( style="display:inline-block; vertical-align: middle; padding-right: 40px;",
                           selectInput(ns("sizePNGplots"), "Size of images (PNG)", choices = c("1200 * 800"), width='150px')),
                 tags$div( style="display:inline-block; vertical-align: middle; padding-right: 40px;",
                           selectInput(ns("resoPNGplots"), "Resolution", choices = c(150), width='100px'))
               )),
      tabPanel("Colors",
               div(id = 'showInfoColorOptions', tags$p("Color customization is available after data loading only.")),
               uiOutput(ns("defineColorsUI"))
      ),
      tabPanel("Plots", uiOutput(ns('gradient_ui'))
               
      )
    )
  )
  #)
}



# Module Server

#' @rdname mod_settings
#' 
#' @export
#' 
#' @keywords internal
#' 
#' @import shiny
#' 
#' @import highcharter
#' 
#' 
mod_settings_server <- function(id, obj){
  
  moduleServer(id, function(input, output, session) {
    ns <- session$ns
    
    
    grey <- "#FFFFFF"
    orangeProstar <- "#E97D5E"
    
    observe({
      req(obj())
      
      if(class(obj()) != 'QFeatures'){
        warning("mod_settings: 'obj()' is not of class 'QFeatures'.")
        return(NULL)
      }
      rv.settings$conditions <- colData(obj())[['Condition']]
    })
    
    
    rv.settings <- reactiveValues(
      nDigits = 10,
      conditions = c('A', 'B', 'A', 'B', 'B', 'B'),
      colorsVolcanoplot = reactiveValues(In = orangeProstar, 
                                         Out = 'lightgrey'
      ),
      colorsTypeMV = reactiveValues(MEC = orangeProstar,
                                    POV = 'lightblue'
      ),
      choosePalette = 'Dark2',
      typeOfPalette = 'predefined',
      examplePalette = NULL,
      basePalette = NULL,
      defaultGradientRate = 0.9,
      legDS = NULL,
      corrMatrixGradient = 0.9,
      legDS_Violinplot = NULL,
      legendForSamples = NULL
      
    )
    
    
    listBrewerPalettes <- c("Dark2 (qualit.)" = "Dark2",
                            "Accent (qualit.)"="Accent",
                            "Paired (qualit.)" = "Paired",
                            "Pastel1 (qualit.)" = "Pastel1",
                            "Pastel2 (qualit.)" = "Pastel2",
                            "Set1 (qualit.)" = "Set1",
                            "Set2 (qualit.)" = "Set2", 
                            "Set3 (qualit.)" = "Set3",
                            "BrBG (diverging)"="BrBG",
                            "PiYG (diverging)"=  "PiYG",
                            "PRGn (diverging)" ="PRGn",
                            "PuOr (diverging)" ="PuOr",
                            "RdBu (diverging)"="RdBu",
                            "RdGy (diverging)" ="RdGy",
                            "RdYlBu (diverging)" ="RdYlBu",
                            "RdYlGn (diverging)" ="RdYlGn",
                            "Spectral (diverging)"="Spectral")
    
    
    output$gradient_ui <- renderUI({
      
      sliderInput(ns("defaultGradientRate"),
                  "Default color gradient for correlation matrix",
                  min = 0,max = 1,value = rv.settings$defaultGradientRate, step=0.01)
    })
    
    
    
    mod_popover_for_help_server("modulePopover_numPrecision", 
                                data = list(title=HTML(paste0("<strong><font size=\"4\">Numerical precisions</font></strong>")),
                                            content= "Set the number of decimals to display for numerical values."))
    
    output$settings_nDigits_UI <- renderUI({
      numericInput(ns("settings_nDigits"), "", value=rv.settings$nDigits, min=0, width="100px")
    })
    
    observeEvent(input$settings_nDigits,{ 
      rv.settings$nDigits <- input$settings_nDigits })
    
    
    
    
    ########################
    observeEvent(c(rv.settings$typeOfPalette, rv.settings$choosePalette),{
      rv.settings$choosePalette
      nbConds <- length(unique(rv.settings$conditions))
      nbColors <- max(3,nbConds)
      rv.settings$basePalette <- NULL
      
      switch(rv.settings$typeOfPalette,
             predefined={
               rv.settings$basePalette <- RColorBrewer::brewer.pal(nbColors, rv.settings$choosePalette)[1:nbConds]
             },
             custom = {
               for (i in 1:nbConds){
                 rv.settings$basePalette <- c(rv.settings$basePalette,
                                              input[[ns(paste0("customColorCondition_",i))]])
                 if (is.null(rv.settings$basePalette)){return(NULL)}
               }
             }
      )
      
      SetExamplePalette()
      
    })
    
    
    
    # observeEvent(input$shinythemeSelector,{
    #   tags$script("$('#shinythemeSelector')\n  .on('change', function(el) {\n      curThemePath = 'shinythemes/css/' + curTheme + '.min.css';\n    }\n\n    // Find the <link> element with that has the bootstrap.css\n    var $link = $('link').filter(function() {\n      var theme = $(this).attr('href');\n      theme = theme.replace(/^.*\\//, '').replace(/(\\.min)?\\.css$/, '');\n      return $.inArray(theme, allThemes) !== -1;\n    });\n\n    // Set it to the correct path\n    $link.attr('href', curThemePath);\n  });")
    #   #theme = shinytheme(input$shinythemeSelector)
    # })
    
    observe({
      shinyjs::onclick("btn_configConditionsColors",{
        shinyjs::toggle(id = "defineColorsForConditionsUI", anim = TRUE)}
      )
      
      shinyjs::onclick("btn_configMVColors",{
        shinyjs::toggle(id = "defineColorsForMVUI", anim = TRUE)}
      )
      
      
      shinyjs::onclick("btn_configVolcanoColors",{
        shinyjs::toggle(id = "defineColorsForVolcanoUI", anim = TRUE)}
      )
      
      
      shinyjs::onclick("btn_configFCColors",{
        shinyjs::toggle(id = "defineColorsForFCUI", anim = TRUE)}
      )
    })
    
    
    
    ##########
    output$defineColorsUI <- renderUI({
      
      
      shinyBS::bsCollapse(id = "collapseExample", open = "",
                          shinyBS::bsCollapsePanel("Colors for conditions", 
                                                   uiOutput(ns("defineColorsForConditionsUI")), style = "primary"),
                          shinyBS::bsCollapsePanel("Colors for missing values", tagList(
                            colourpicker::colourInput(ns("colMEC"), "Select colour for MEC", orangeProstar,showColour = "background"),
                            colourpicker::colourInput(ns("colPOV"), "Select colour for POV", "lightblue", showColour = "background")
                          ), style = "primary"),
                          shinyBS::bsCollapsePanel("Colors for volcanoplots", 
                                                   colourpicker::colourInput(ns("colVolcanoIn"), "Select colour for selected entities", 
                                                                             rv.settings$colorsVolcanoplot$In,
                                                                             showColour = "background"),
                                                   colourpicker::colourInput(ns("colVolcanoOut"), "Select colour for filtered out entities", rv.settings$colorsVolcanoplot$Out, showColour = "background"), 
                                                   style = "primary"),
                          shinyBS::bsCollapsePanel("logFC distribution", "todo", style = "primary")
                          
      )
      
      
    })
    
    
    
    
    output$defineColorsForConditionsUI <- renderUI({
      
      tagList(
        fluidRow(
          column(width=3,radioButtons(ns("typeOfPalette"), 
                                      "Type of palette for conditions",
                                      choices=c("predefined"="predefined", 
                                                "custom"="custom"), 
                                      selected=rv.settings$typeOfPalette)),
          column(width=6,uiOutput(ns("predefinedPaletteUI")),
                 uiOutput(ns("customPaletteUI"), width='200px'))
        ),
        highcharter::highchartOutput(ns("displayPalette")),
        hr()
      )
    })
    
    observeEvent(input$choosePalette, {
      rv.settings$choosePalette <-input$choosePalette })
    
    
    observeEvent(input$typeOfPalette,{
      rv.settings$typeOfPalette <- input$typeOfPalette
    })
    
    
    output$predefinedPaletteUI <- renderUI({
      rv.settings$typeOfPalette
      
      if (rv.settings$typeOfPalette == 'custom') {return(NULL)}
      
      selectInput(ns("choosePalette"), "Predefined palettes", 
                  choices=listBrewerPalettes,
                  selected=rv.settings$choosePalette,width='200px')
    })
    
    output$customPaletteUI <- renderUI({
      rv.settings$typeOfPalette
      if (rv.settings$typeOfPalette == 'predefined') {return(NULL)}
      
      mod_observe_dynamic_colourPicker_input_ui(ns("colourPickerInputs"))
      
      
    })
    
    
    rv.settings$dynColors <- mod_observe_dynamic_colourPicker_input_server('colourPickerInputs',
                                                                           n=reactive({length(unique(rv.settings$conditions))}),
                                                                           label = reactive({ unique(rv.settings$conditions)}))
    
    
    SetExamplePalette <- reactive({
      
      nbConds <- length(unique(rv.settings$conditions))
      for (i in 1:nbConds){
        rv.settings$examplePalette[ which(rv.settings$conditions == unique(rv.settings$conditions)[i])] <- rv.settings$basePalette[i]
      }
    })
    
    observe({
      req(rv.settings$conditions)
      req(rv.settings$dynColors())
      rv.settings$typeOfPalette
      if (rv.settings$typeOfPalette == 'predefined') {return(NULL)}
      
      rv.settings$basePalette <- rv.settings$dynColors()
      SetExamplePalette()
    })
    
    observeEvent(input$colMEC, {rv.settings$colorsTypeMV$MEC <- input$colMEC})
    
    observeEvent(input$colPOV, { rv.settings$colorsTypeMV$POV <- input$colPOV})
    
    observeEvent(input$colVolcanoIn, {rv.settings$colorsVolcanoplot$In <- input$colVolcanoIn})
    
    observeEvent(input$colVolcanoOut, {rv.settings$colorsVolcanoplot$Out <- input$colVolcanoOut})
    
    
    
    output$displayPalette <- highcharter::renderHighchart({
      rv.settings$examplePalette
      
      
      nbConds <- length(unique(rv.settings$conditions))
      df <- data.frame(y= abs(10+rnorm(length(rv.settings$conditions))))
      
      highcharter::highchart() %>%
        DAPAR2::dapar_hc_chart(chartType = "column") %>%
        highcharter::hc_add_series(data = df, type="column", colorByPoint = TRUE) %>%
        highcharter::hc_colors(rv.settings$examplePalette) %>%
        highcharter::hc_plotOptions( column = list(stacking = "normal"), animation=list(duration = 1)) %>%
        highcharter::hc_legend(enabled = FALSE) %>%
        highcharter::hc_yAxis(labels=FALSE,title = list(text = "")) %>%
        highcharter::hc_xAxis(categories = 1:nbConds, title = list(text = "")
        )
    })
    
    return(reactive({rv.settings}))
    
  })
  
}

## To be copied in the UI
# mod_settings_ui("settings_ui_1")

## To be copied in the server
# callModule(mod_settings_server, "settings_ui_1")