1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
##########################################################################3
## experimental new(er) version of .dataFrame
## helper for rowname wrangling:
.rownamesAreUnique <- function(df) {
identical(
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 = seq_len(nrow(df)), rownames = rowNames, df)
}
## define the app
app <- list(
ui = fluidPage(
titlePanel("Select rows in the Data Table"),
sidebarLayout(
sidebarPanel(
actionButton("btnSend", "Send"),
width = 1
),
mainPanel(
DT::dataTableOutput('tbl')
)
)
),
server = function(input, output) {
output$tbl <- DT::renderDataTable(
df, server = TRUE, filter = "top",
options = serverOptions
)
if (length(summaryMessage) != 1L) {
output$summary <- renderUI({
HTML(paste0(
sprintf(
'<span class="shiny-html-output" >%s</span> ',
summaryMessage
), "<br>"
))
})
}
observe({
if (input$btnSend > 0)
isolate({
idx <- input$tbl_rows_selected
stopApp(returnValue = df[idx,])
})
})
}
)
.runApp(app, ...)
}
setMethod("display", signature(object = "data.frame"),
function(object, ...) {
.dataFrame3(df=object, ...)
}
)
|
