Created
April 14, 2019 16:24
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Shiny Gadget For Emailing Cute Puppies
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library(shiny) | |
library(miniUI) | |
library(gmailr) | |
library(rtweet) | |
library(purrr) | |
use_secret_file("~/client_id.json") | |
send_email <- function(to_address, picture_url, msg = "", | |
subject = "Cute Picture", expanded_url = picture_url){ | |
html_msg <- | |
tagList( | |
pre(msg), | |
br(), | |
img( | |
src = picture_url, | |
style = 'max-height: 100%; max-width: 100%; margin: auto; display:block;'), | |
p("Image Source:", expanded_url) | |
) | |
mime_msg <- mime(to = to_address, subject = subject) | |
mime_msg <- html_body(mime_msg, as.character(html_msg)) | |
send_message(mime_msg) | |
} | |
cute_browse_and_send <- | |
function(handle = c("CuteEmergency","CuteBabyAnimals","dog_rates"), ntweets = 10) { | |
tmls <- get_timelines(handle, n = ntweets) | |
pictures <- flatten_chr(pluck(tmls, "ext_media_url")) | |
pictures <- pictures[!is.na(pictures)] | |
expanded_urls <- flatten_chr(pluck(tmls, "ext_media_expanded_url")) | |
expanded_urls <- expanded_urls[!is.na(expanded_urls)] | |
if (length(pictures) == 0) | |
stop("No pictures found in first ",ntweets," tweets!\nMaybe try more?") | |
if (length(pictures) != length(expanded_urls)) | |
warning("Length of picture urls and expanded urls do not match!") | |
ui <- miniPage( | |
gadgetTitleBar("Select Cute Picture"), | |
miniContentPanel( | |
uiOutput("picture") | |
), | |
miniButtonBlock( | |
actionButton("previouspic", "Previous Picture"), | |
actionButton("nextpic", "Next Picture"), | |
actionButton("send", "Send Picture") | |
) | |
) | |
server <- function(input, output, session) { | |
status <- reactiveValues(ix = 1, | |
emails = list()) | |
observeEvent(input$nextpic, { | |
if (status$ix == length(pictures)) { | |
status$ix <- 1 | |
} else{ | |
status$ix <- status$ix + 1 | |
} | |
}) | |
observeEvent(input$previouspic, { | |
if (status$ix == 1) { | |
status$ix <- length(pictures) | |
} else{ | |
status$ix <- status$ix - 1 | |
} | |
}) | |
observeEvent(input$send, { | |
showModal(modalDialog( | |
title = "Send Picture?", | |
textInput("email", "Recipient Email address"), | |
textInput("subject","Subject", value = "Cute Picture!"), | |
textAreaInput("message", "Message"), | |
easyClose = TRUE, | |
footer = tagList( | |
modalButton("Cancel"), | |
actionButton("oksend","Send") | |
) | |
)) | |
}) | |
observeEvent(input$oksend,{ | |
new_email <- | |
send_email( | |
to_address = input$email, | |
picture_url = pictures[status$ix], | |
subject = input$subject, | |
msg = input$message, | |
expanded_url <- expanded_urls[status$ix]) | |
status$emails <- append(status$emails, new_email) | |
removeModal() | |
}) | |
output$picture <- renderUI({ | |
tagList( | |
img( | |
src = pictures[status$ix], | |
style = 'max-height: 100%; max-width: 100%; margin: auto; display:block;')) | |
}) | |
observeEvent(input$done, { | |
returnValue <- status$emails | |
stopApp(returnValue) | |
}) | |
} | |
runGadget(ui, server) | |
} | |
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