teal main app moduleThis is the main teal app that puts everything together.
ui_teal(
id,
splash_ui = tags$h2("Starting the Teal App"),
title = build_app_title(),
header = tags$p(),
footer = tags$p()
)srv_teal(id, modules, teal_data_rv, filter = teal_slices())
Returns a reactive expression which returns the currently active module.
(character(1))
module id
(shiny.tag) UI to display initially,
can be a splash screen or a shiny module UI. For the latter, see
init() about how to call the corresponding server function.
(shiny.tag or character(1))
The browser window title. Defaults to a title "teal app" with the icon of NEST.
Can be created using the build_app_title() or
by passing a valid shiny.tag which is a head tag with title and link tag.
(shiny.tag or character(1))
The header of the app.
(shiny.tag or character(1))
The footer of the app.
(teal_modules) object containing the output modules which
will be displayed in the teal application. See modules() and module() for
more details.
(reactive)
returns the teal_data, only evaluated once, NULL value is ignored
(teal_slices)
Specifies the initial filter using teal_slices().
It displays the splash UI which is used to fetch the data, possibly
prompting for a password input to fetch the data. Once the data is ready,
the splash screen is replaced by the actual teal UI that is tabsetted and
has a filter panel with datanames that are relevant for the current tab.
Nested tabs are possible, but we limit it to two nesting levels for reasons
of clarity of the UI.
The splash screen functionality can also be used
for non-delayed data which takes time to load into memory, avoiding
shiny session timeouts.
Server evaluates the teal_data_rv (delayed data mechanism) and creates the
datasets object that is shared across modules.
Once it is ready and non-NULL, the splash screen is replaced by the
main teal UI that depends on the data.
The currently active tab is tracked and the right filter panel
updates the displayed datasets to filter for according to the active datanames
of the tab.
It is written as a shiny module so it can be added into other apps as well.