Accordion
Accordions are a category of collapsible elements. While collapsible
items do not alter the state of other items in the same collapsible
container, each accordion item will toggle any other opened accordion,
to ensure that only 1 item is visible at once. accordion()
expects to contain accordionItems(). Importantly, to
guaranty the uniqueness of each accordion, we must provide an
id parameter. This parameter allows to programmatically
toggle any accordion item, through an updateAccordion()
function.
User messages
bs4Dash make it possible to create an entire chat
system within a Shiny app. userMessages() is the main
container, userMessage() being the message element.
updateUserMessages() looks for the
userMessages() id so as to:
- Remove an existing message.
- Add a new message.
- Edit an existing message.
Importantly, we assume that a message structure is composed as follows:
list(
author = "David",
date = "Now",
image = "https://i.pinimg.com/originals/f1/15/df/f115dfc9cab063597b1221d015996b39.jpg",
type = "received",
text = tagList(
sliderInput(
"obs",
"Number of observations:",
min = 0,
max = 1000,
value = 500
),
plotOutput("distPlot")
)The type parameter controls the message background
color. For a sent message, the color is inherited from the
userMessages() status, while for a received message, the
color is gray by default. The text argument refers to
the message content. It may be simple text, shiny tags or event any
combinations of shiny inputs/ouput, as shown in the below example.