Type: Package
Title: Lares 'shiny' Modules
Version: 0.0.3
Maintainer: Bernardo Lares <laresbernardo@gmail.com>
Description: Useful 'shiny' production-ready modules and helpers such as login window and visualization tools.
License: AGPL-3
Encoding: UTF-8
Imports: dplyr, DT, htmltools, miniUI, shiny, shinydashboard, shinyWidgets
Suggests: h2o, lares
URL: https://github.com/laresbernardo/lareshiny
BugReports: https://github.com/laresbernardo/lareshiny/issues
RoxygenNote: 7.2.3
NeedsCompilation: no
Packaged: 2023-07-06 13:00:57 UTC; bernardo
Author: Bernardo Lares [cre, aut]
Repository: CRAN
Date/Publication: 2023-07-06 19:00:02 UTC

Lares Shiny Modules

Description

R library for quick useful Shiny modules

Author(s)

Bernardo Lares (laresbernardo@gmail.com)

See Also

Useful links:

Automatically wrap ggplot2 texts depending on rendered size

Description

This function automatically adapts the length of a title or subtitle text so that it wraps long texts in separate lines. This is useful to avoid trimming long texts when the rendered shiny size is shorter.

Usage

autoline_shiny(session, text, plot_name, font_size = 14, n = 1.6)

Arguments

session

Shiny's session object.

text

Character. Text for the title or subtitle or any text to be wrapped.

plot_name

Character. The name of the output plot.

font_size, n

Numeric. Values to help calculate a proxy of length.

Value

Character. String with wrapped values.

Description

This function personalizes your Shiny dashboard's footer with your company's name, link, help mail.

Usage

custom_footer(
  company = "MyCoolCompany",
  text = "ShinyDashboard",
  site = "https://github.com/laresbernardo/lareshiny",
  helpmail = "myemail@mydomain.com",
  lang = "en"
)

Arguments

company, text, site

Character. Your company's name and URL and the project's name to show in footer.

helpmail

Character. Developers mail

lang

Character. Language for the text.

Value

HTML string (tags$footer).

Custom Header: Customized for Shiny's Header

Description

This function personalizes your Shiny dashboard's header with logo, links, favicon, font, and texts.

Usage

custom_header(
  title = "MyLareShiny",
  site = NULL,
  favicon = NULL,
  font = "Montserrat",
  logosrc = NULL,
  logo_height = "40px",
  logo_width = NULL,
  loadingsrc = NULL,
  load_height = "40px",
  load_width = NULL,
  text = Sys.Date(),
  type = 1
)

Arguments

title

Character. Your 'shiny' app title (displayed in Navigators' tab)

site

Character. URL for your site (opens when logo is clicked)

favicon

Character. Image for your favicon. Save file in www directory.

font

Character. Font for whole 'shiny' app. Use Google Fonts names.

logosrc, loadingsrc

Character. Logo image and loading image. For local files, save them in www directory to call them directly.

logo_height, logo_width, load_height, load_width

Integer. Logo and loading images dimensions.

text

Character. Text displayed in top right corner.

type

Integer. 1 for complete dashboardHeader results, 2 for title results.

Value

A dashboardHeader object.

Examples

if (interactive()) {
  shinyApp(
    ui = dashboardPage(
      custom_header(
        title = "MyLareShiny",
        site = "https://github.com/laresbernardo/lareshiny",
        font = "Montserrat",
        logosrc = "logo.png",
        text = Sys.Date()
      ),
      dashboardSidebar(disable = TRUE),
      dashboardBody()
    ),
    server = function(input, output) { }
  )
}

Totals Row for datatables

Description

Totals Row for datatables

Usage

js_op(column, operation, txt = "", signif = 3)

Arguments

column

Integer. Starting from 0, which column to operate

operation

Character. Select from sum, mean, count, custom

txt

Character. Insert text before (or instead) operation

signif

Integer. How many decimals to consider when operating

Value

Text that can be parsed as javascript.

Helper for javascript code

Description

Helper for javascript code

Usage

js_op_aux(type, df = NULL)

Arguments

type

Character. Select start, end or sketch.

df

data.frame. Needed for sketch only.

Value

Text that can be parsed as javascript.

Export Results from h2o_automl()

Description

Friendly app that helps you export lares' h2o_automl() results

Usage

model_exporter(model)

Arguments

model

List. Result from h2o_automl()

Value

A shiny interactive app

Examples

if (interactive()) {
  model_exporter(model)
}

Login Module for Shiny

Description

Login Module for Shiny with local User and Password. This must be added in the server section (no need to add UI)

Usage

module_login(
  input,
  session,
  users = c("123", "321"),
  pwds = c("123", "321"),
  logo = NA,
  logo_height = "100px",
  lang = "es",
  style = list(botton_txt_colour = "#FFFFFF", botton_bgd_colour = "#EBB600"),
  change_text = list(),
  logged = FALSE,
  personal = "MacBookBLB.local"
)

Arguments

input, session

Shiny's input and session objects.

users, pwds

Character Vector. User and password combinations accepted

Character. Select image for logo display. Host local file in your www directory preferably

logo_height

Character. Height for rendering the logo.

lang

Character. Language. Currently accepted: es, en

style

List. Possible values for styling the module such as botton_txt_colour and botton_bgd_colour.

change_text

Named list. Change the default texts used.

logged

Boolean. You might want to set to TRUE when developing or testing your app so this module doesn't show up every time. Check the personal parameter as well

personal

Character vector. If you wish to auto-login certain user(s), set the values from Sys.info()[["nodename"]].

Value

A reactiveValues object

Examples

if (interactive()) {
  ui <- fluidPage("Hello lareshiny!")
  server <- function(input, output, session) {
    login <- module_login(input, session, personal = "")
    observe({
      if (login$authenticated) message("We are in!")
    })
  }
  shinyApp(ui, server)
}

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