css - Multiple notifications in different places shiny app -


i made simple example show problem, is:

  • how set notifications @ different places independently of each others (let's want each notification displayed @ top right , left, respectively)

```

library(shiny)    ui <- fluidpage(      # tags$head(     #   tags$style(     #     html(".shiny-notification {     #          position: fixed;     #          top: 800px;     #          left: 40px;     #          width: 15em;     #          opacity: 1;     #          }     #          "     #     )     #   )     # )      actionbutton("showme", "show notification:")    )    server <- function(input, output, session) {      observe({        shownotification(         id = "welcome_notif",         "blablablablabla .... blablablabla.",         duration = 20,          closebutton = true,         type = "message")      })      observeevent(input$showme,{        shownotification(          id = "showme_notif",         "hihihi", # put text in notification         duration = 30,          closebutton = true,         type = "message")      })    }    shinyapp(ui = ui, server = server)

```

i saw there special css notification in shiny code (https://github.com/rstudio/shiny/blob/master/inst/www/shared/shiny.css).

if change css class (as shown in commented code), manage change place notifications displayed (but not independently).

edit:

i tried use addclass shinyjs:

library(shiny) library(shinyjs)    ui <- fluidpage(      useshinyjs(),     inlinecss(list(.customclass = "position: fixed; top: 200px;")),      actionbutton("showme", "show notification:")    )    server <- function(input, output, session) {      observe({        shownotification(         id = "welcome_notif",         "blablablablabla .... blablablabla.",         duration = 20,          closebutton = true,         type = "message")      })      observeevent(input$showme,{        shownotification(          id = "showme_notif",         "hihihi", # put text in notification         duration = 30,          closebutton = true,         type = "message")      })      observe({       addclass(id = "showme_notif", class = "customclass")     })    }    shinyapp(ui = ui, server = server)

as suggested florian (see below) seems can handle elements generated in ui , not in server notifications.

for example works:

if (interactive()) {     shinyapp(       ui = fluidpage(         useshinyjs(),         inlinecss(list(.customclass = "position: fixed; top: 200px;")),         p(id = "element", "watch happens me")       ),       server = function(input, output) {         observe({           addclass(id = "element", class = "customclass")         })       }     )   }

i able modify css of element, since notification gets id: shiny-notifaction-xxx xxx name of notification. notifications put in container, , unable modify css want.

library(shiny)  ui <- fluidpage(    tags$style("#shiny-notification-showme_notif {margin:20px;}"),    actionbutton("showme", "show notification:")  )  server <- function(input, output, session) {    observe({      shownotification(       id = "welcome_notif",       "blablablablabla .... blablablabla.",       duration = 200,        closebutton = true,       type = "message")    })    observeevent(input$showme,{      shownotification(        id = "showme_notif",       "hihihi", # put text in notification       duration = 300,        closebutton = true,       type = "message")    })  }  shinyapp(ui = ui, server = server)

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