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##########################################################################3
## experimental new(er) version of .dataFrame
## helper for rowname wrangling:
.rownamesAreUnique <- function(df){
length(rownames(df)) == length(unique(rownames(df)))
}
.dataFrame3 <-
function(df, ..., summaryMessage = "",
serverOptions = list(orderClasses=TRUE))
{
rowNames <- rownames(df)
## If the rownames are unique then just use the names as idx.
## but if not, then also also append supplementary idx
if(.rownamesAreUnique(df)){
dt <- data.frame(idx=rowNames,df)
}else{
dt <- data.frame(idx=1:dim(df)[1],rownames=rowNames,df)
}
## define the app
app <- list(
ui = fluidPage(
tags$head(tags$style(HTML("tfoot {display: table-header-group;}"))),
title = 'The data from your data.frame',
fluidRow(textOutput('rows_out'),
br(),
actionButton("btnSend", "Return rows to R session")),
hr(),
mainPanel(dataTableOutput('tbl'))
),
server = function(input, output) {
output$rows_out <- renderText({
paste(c('Selected rows:',
input$rows),
collapse = ' ')
})
output$tbl <- renderDataTable(
dt,
options = list(pageLength = 20),
callback = "function(table) {
table.on('click.dt', 'tr', function() {
$(this).toggleClass('selected');
var rownames = $.map(table.rows('.selected').data(),
function(x) { return(x[0]) });
Shiny.onInputChange('rows', rownames);
}); }",
serverOptions)
if (length(summaryMessage)!=1){
output$summary <- renderUI({
HTML(paste0(
'<span class="shiny-html-output" >',summaryMessage[1],'</span> ',
'<br>',
'<span class="shiny-html-output" >',summaryMessage[2],'</span> ',
'<br>',
'<span class="shiny-html-output" >',summaryMessage[3],'</span> ',
'<br>',
'<span class="shiny-html-output" >',summaryMessage[4],'</span> ' ,
'<br>',
'<span class="shiny-html-output" >',summaryMessage[5],'</span> ' ,
'<br>',
'<span class="shiny-html-output" >',summaryMessage[6],'</span> ' ,
'<br>'
))
})
}
observe({
if(input$btnSend > 0)
isolate({
# print(input$rows)
idx <- input$rows
# message("the input size is: ", length(input$rows))
# message("the input class is: ", class(input$rows))
stopApp(returnValue = df[idx,])
})
})
})
.runApp(app, ...)
}
setMethod("display", signature(object = c("data.frame")),
function(object, ...)
{
.dataFrame3(df=object, ...)
})
##################################################################
## Older code follows
.selDataTableOutput <-
function(outputId, ... )
{
origStyle<- c(
'<script src="shared/datatables/js/jquery.dataTables.min.js"></script>',
'<script class="shiny-html-output"
src= "/js-interactiveDisplayBase/DTbinding.js"></script>',
'<link rel = "stylesheet",
type = "text/css",
href = "shared/datatables/css/DT_bootstrap.css"></link>',
'<style type="text/css">
.rowsSelected td{
background-color: rgba(112,164,255,0.2)
!important}) </style>',
'<style type="text/css"> .selectable div table tbody tr{
cursor: hand; cursor: pointer;}</style>',
'<style type="text/css"> .selectable div table tbody tr td{
-webkit-touch-callout: none;
-webkit-user-select: none;
-khtml-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;} </style>',
'<style type="text/css">
#myTable tfoot {display:table-header-group;}</style>')
tagList(
singleton(
tags$head(HTML(origStyle)
)
),
div(id = outputId, class = "shiny-datatable-output selectable")
)
}
.dataFrame <-
function(df, ..., summaryMessage = "", serverOptions = list(orderClasses=TRUE))
{
colNames <- colnames(df)
app <- list(ui=pageWithSidebar(
headerPanel("Data Tables binding"),
sidebarPanel(
tags$head(
tags$style(type='text/css', ".span4 { max-width: 330px; }")
),
conditionalPanel(
condition= "output.summary",
strong(uiOutput('summary'))
),
br(),
actionButton("btnSend", "Send Rows"),
em(p("Shift-Click to select multiple rows.")),
br(),
tags$button("Select All Rows", class="btn", id="select_all_rows"),
em(p("Click to select all rows on page")),
br(),
tags$button("Deselect All Rows", class="btn", id="deselect_all_rows"),
em(p("Click to deselect all rows on page"))
),
mainPanel(
.selDataTableOutput(outputId="myTable",...)
)
), server=function(input, output) {
output$myTable <-
renderDataTable({df},
options = serverOptions
)
if (length(summaryMessage)!=1){
output$summary <- renderUI({
HTML(paste0(
'<span class="shiny-html-output" >',summaryMessage[1],'</span> ',
'<br>',
'<span class="shiny-html-output" >',summaryMessage[2],'</span> ',
'<br>',
'<span class="shiny-html-output" >',summaryMessage[3],'</span> ',
'<br>',
'<span class="shiny-html-output" >',summaryMessage[4],'</span> ' ,
'<br>',
'<span class="shiny-html-output" >',summaryMessage[5],'</span> ' ,
'<br>',
'<span class="shiny-html-output" >',summaryMessage[6],'</span> ' ,
'<br>'
))
})
}
observe({
if(input$btnSend > 0)
isolate({
#print(input$myTable)
dfVec <- input$myTable
df <- as.data.frame(matrix(data=dfVec, ncol=dim(df)[2],
byrow=TRUE))
names(df) <- colNames
stopApp(returnValue = df)
})
})
})
# runApp(app, ...)
.runApp(app, ...)
}
#################################################
## testing:
## library(interactiveDisplayBase); df <- mtcars;
## foo <- interactiveDisplayBase:::.dataFrame(df)
## foo <- display(df)
## TODO: add support for trapping last usage (for cases where user
## accidently calls it without assignment like this : display(df)
|
