Package 'shinybrowser'

Detect a user's browser information

Description

This function must be called somewhere in a Shiny app's UI in order to use any other {shinybrowser} functions.

Usage

detect()

Value

HTML dependencies that are required to use shinybrowser.

Accuracy

It's important to understand there is no reliable way to detect the information in {shinybrowser} with 100% accuracy.

{shinybrowser} makes a best effort at identifying the most accurate information, but some browser/operating system combinations may be difficult to identify. Users can also use a variety of tools to deliberately spoof this information.

With that in mind, {shinybrowser} should detect the correct information in most cases.

Supported values

Only major browsers and operating systems are supported, which means that the RStudio Viewer may result in an "UNKNOWN" browser, and unpopular operating systems may also result in "UNKNOWN".

For a list of values that can be detected, see SUPPORTED_BROWSERS, SUPPORTED_DEVICES, and SUPPORTED_OPERATING_SYSTEMS.

Mobile vs desktop vs tablet

{shinybrowser} attempts to detect whether a device is "mobile" or "desktop". The distinction between mobile and desktop is not always clear, so if what you actually care about is the size of the device, it might be better to use get_width().

Tablets return ambiguous results; some tablets self-report as mobile devices while others as desktop.

Width and height

The width and height of the browser window are only reported once, when the detect() function is initially called. If the user resizes the browser window, the new dimensions are not reported until the page is refreshed.

See Also

get_all_info(), get_browser(), get_os(), get_device(), get_width()

Examples

if (interactive()) {
  library(shiny)

  ui <- fluidPage(
    shinybrowser::detect(),
    "Your browser information:",
    verbatimTextOutput("browser_info")
  )
  server <- function(input, output, session) {
    output$browser_info <- renderPrint({
      shinybrowser::get_all_info()
    })
  }
  shinyApp(ui, server)
}

---

Get all information about user's browser

Description

Get a list with all the information detected about the user's browser.

The list is reactive, therefore it must be accessed inside a reactive context (such as an observe or reactive).

{shinybrowser} must be initialized with a call to detect() in the app's ui.

Usage

get_all_info()

Value

List with all information detected about the user's browser: device, browser, os, dimensions, user_agent

Accuracy

It's important to understand there is no reliable way to detect the information in {shinybrowser} with 100% accuracy.

{shinybrowser} makes a best effort at identifying the most accurate information, but some browser/operating system combinations may be difficult to identify. Users can also use a variety of tools to deliberately spoof this information.

With that in mind, {shinybrowser} should detect the correct information in most cases.

Supported values

Only major browsers and operating systems are supported, which means that the RStudio Viewer may result in an "UNKNOWN" browser, and unpopular operating systems may also result in "UNKNOWN".

For a list of values that can be detected, see SUPPORTED_BROWSERS, SUPPORTED_DEVICES, and SUPPORTED_OPERATING_SYSTEMS.

Mobile vs desktop vs tablet

{shinybrowser} attempts to detect whether a device is "mobile" or "desktop". The distinction between mobile and desktop is not always clear, so if what you actually care about is the size of the device, it might be better to use get_width().

Tablets return ambiguous results; some tablets self-report as mobile devices while others as desktop.

Width and height

The width and height of the browser window are only reported once, when the detect() function is initially called. If the user resizes the browser window, the new dimensions are not reported until the page is refreshed.

See Also

detect(), get_browser(), get_browser_version(), get_os(), get_os_version(), get_device(), get_width(), get_height(), get_user_agent(), SUPPORTED_BROWSERS, SUPPORTED_DEVICES, SUPPORTED_OPERATING_SYSTEMS

Examples

if (interactive()) {
  library(shiny)

  ui <- fluidPage(
    shinybrowser::detect(),
    "Your browser information:",
    verbatimTextOutput("browser_info")
  )
  server <- function(input, output, session) {
    output$browser_info <- renderPrint({
      shinybrowser::get_all_info()
    })
  }
  shinyApp(ui, server)
}

---

Get user's browser

Description

Get the user's browser name (such as "Chrome" or "Firefox") and version.

The value is reactive, therefore it must be accessed inside a reactive context (such as an observe or reactive).

{shinybrowser} must be initialized with a call to detect() in the app's ui.

Usage

get_browser()

get_browser_version()

Value

User's detected browser type

User's detected browser version

Accuracy

It's important to understand there is no reliable way to detect the information in {shinybrowser} with 100% accuracy.

{shinybrowser} makes a best effort at identifying the most accurate information, but some browser/operating system combinations may be difficult to identify. Users can also use a variety of tools to deliberately spoof this information.

With that in mind, {shinybrowser} should detect the correct information in most cases.

Supported values

Only major browsers and operating systems are supported, which means that the RStudio Viewer may result in an "UNKNOWN" browser, and unpopular operating systems may also result in "UNKNOWN".

For a list of values that can be detected, see SUPPORTED_BROWSERS, SUPPORTED_DEVICES, and SUPPORTED_OPERATING_SYSTEMS.

See Also

detect(), get_all_info(), is_browser_ie(), is_browser_chrome(), is_browser_firefox(), SUPPORTED_BROWSERS

Examples

if (interactive()) {
  library(shiny)

  ui <- fluidPage(
    shinybrowser::detect(),
    "Your browser:",
    textOutput("browser_info")
  )
  server <- function(input, output, session) {
    output$browser_info <- renderText({
      paste(shinybrowser::get_browser(), "version", shinybrowser::get_browser_version())
    })
  }
  shinyApp(ui, server)
}

---

Get user's device (mobile or desktop)

Description

The value is reactive, therefore it must be accessed inside a reactive context (such as an observe or reactive).

{shinybrowser} must be initialized with a call to detect() in the app's ui.

Usage

get_device()

Value

User's detected decive type ("Mobile" or "Desktop")

Accuracy

It's important to understand there is no reliable way to detect the information in {shinybrowser} with 100% accuracy.

{shinybrowser} makes a best effort at identifying the most accurate information, but some browser/operating system combinations may be difficult to identify. Users can also use a variety of tools to deliberately spoof this information.

With that in mind, {shinybrowser} should detect the correct information in most cases.

Mobile vs desktop vs tablet

{shinybrowser} attempts to detect whether a device is "mobile" or "desktop". The distinction between mobile and desktop is not always clear, so if what you actually care about is the size of the device, it might be better to use get_width().

Tablets return ambiguous results; some tablets self-report as mobile devices while others as desktop.

See Also

detect(), get_all_info(), is_device_mobile(), is_device_desktop(), get_width(), get_height()

Examples

if (interactive()) {
  library(shiny)

  ui <- fluidPage(
    shinybrowser::detect(),
    "Your device:",
    textOutput("device_info")
  )
  server <- function(input, output, session) {
    output$device_info <- renderText({
      shinybrowser::get_device()
    })
  }
  shinyApp(ui, server)
}

---

Get user's operating system

Description

Get the user's operating system (such as "Windows" or "Mac" or "Android") and version (such as "10" for Windows or "OS X" for Mac).

The value is reactive, therefore it must be accessed inside a reactive context (such as an observe or reactive).

{shinybrowser} must be initialized with a call to detect() in the app's ui.

Usage

get_os()

get_os_version()

Value

User's detected operating system

User's detected operating system version

Accuracy

It's important to understand there is no reliable way to detect the information in {shinybrowser} with 100% accuracy.

{shinybrowser} makes a best effort at identifying the most accurate information, but some browser/operating system combinations may be difficult to identify. Users can also use a variety of tools to deliberately spoof this information.

With that in mind, {shinybrowser} should detect the correct information in most cases.

Supported values

Only major browsers and operating systems are supported, which means that the RStudio Viewer may result in an "UNKNOWN" browser, and unpopular operating systems may also result in "UNKNOWN".

For a list of values that can be detected, see SUPPORTED_BROWSERS, SUPPORTED_DEVICES, and SUPPORTED_OPERATING_SYSTEMS.

See Also

detect(), get_all_info(), is_os_windows(), is_os_mac(), SUPPORTED_OPERATING_SYSTEMS

Examples

if (interactive()) {
  library(shiny)

  ui <- fluidPage(
    shinybrowser::detect(),
    "Your operating system:",
    textOutput("os_info")
  )
  server <- function(input, output, session) {
    output$os_info <- renderText({
      paste(shinybrowser::get_os(), "version", shinybrowser::get_os_version())
    })
  }
  shinyApp(ui, server)
}

---

Get user agent string from the browser

Description

This function exposes the user agent that is reported by the browser, but it should only be used for troubleshooting purposes.

The value is reactive, therefore it must be accessed inside a reactive context (such as an observe or reactive).

{shinybrowser} must be initialized with a call to detect() in the app's ui.

Usage

get_user_agent()

Value

User's user-agent string

See Also

detect(), get_all_info()

Examples

if (interactive()) {
  library(shiny)

  ui <- fluidPage(
    shinybrowser::detect(),
    "Your user agent:",
    textOutput("ua_info")
  )
  server <- function(input, output, session) {
    output$ua_info <- renderText({
      shinybrowser::get_user_agent()
    })
  }
  shinyApp(ui, server)
}

---

Get user's browser dimensions (in pixels)

Description

The value is reactive, therefore it must be accessed inside a reactive context (such as an observe or reactive).

{shinybrowser} must be initialized with a call to detect() in the app's ui.

Usage

get_width()

get_height()

Value

User's detected browser width in pixels

User's detected browser height in pixels

Width and height

The width and height of the browser window are only reported once, when the detect() function is initially called. If the user resizes the browser window, the new dimensions are not reported until the page is refreshed.

See Also

detect(), get_all_info()

Examples

if (interactive()) {
  library(shiny)

  ui <- fluidPage(
    shinybrowser::detect(),
    "Your browser dimensions:",
    textOutput("browser_dim")
  )
  server <- function(input, output, session) {
    output$browser_dim <- renderText({
      paste0(shinybrowser::get_width(), "x", shinybrowser::get_height())
    })
  }
  shinyApp(ui, server)
}

---

Is the user using Chrome?

Description

Convenience function that checks if the user's browser is detected as Chrome. See get_browser() for details.

Usage

is_browser_chrome()

Value

Whether or not this user using Chrome

Examples

if (interactive()) {
  library(shiny)

  ui <- fluidPage(
    shinybrowser::detect(),
    "Are you using Chrome?",
    textOutput("result")
  )
  server <- function(input, output, session) {
    output$result <- renderText({
      shinybrowser::is_browser_chrome()
    })
  }
  shinyApp(ui, server)
}

---

Is the user using Firefox?

Description

Convenience function that checks if the user's browser is detected as Firefox. See get_browser() for details.

Usage

is_browser_firefox()

Value

Whether or not this user using Firefox

Examples

if (interactive()) {
  library(shiny)

  ui <- fluidPage(
    shinybrowser::detect(),
    "Are you using Firefox?",
    textOutput("result")
  )
  server <- function(input, output, session) {
    output$result <- renderText({
      shinybrowser::is_browser_firefox()
    })
  }
  shinyApp(ui, server)
}

---

Is the user using Internet Explorer?

Description

Convenience function that checks if the user's browser is detected as Internet Explorer. See get_browser() for details.

Usage

is_browser_ie()

Value

Whether or not this user using Internet Explorer

Examples

if (interactive()) {
  library(shiny)

  ui <- fluidPage(
    shinybrowser::detect(),
    "Are you using Internet Explorer?",
    textOutput("result")
  )
  server <- function(input, output, session) {
    output$result <- renderText({
      shinybrowser::is_browser_ie()
    })
  }
  shinyApp(ui, server)
}

---

Is the user on a desktop device?

Description

Convenience function that checks if the user's device is detected as desktop. See get_device() for details.

Usage

is_device_desktop()

Value

Whether or not this user is on desktop

Examples

if (interactive()) {
  library(shiny)

  ui <- fluidPage(
    shinybrowser::detect(),
    "Are you on desktop?",
    textOutput("result")
  )
  server <- function(input, output, session) {
    output$result <- renderText({
      shinybrowser::is_device_desktop()
    })
  }
  shinyApp(ui, server)
}

---

Is the user on a mobile device?

Description

Convenience function that checks if the user's device is detected as mobile. See get_device() for details.

Usage

is_device_mobile()

Value

Whether or not this user is on mobile

Examples

if (interactive()) {
  library(shiny)

  ui <- fluidPage(
    shinybrowser::detect(),
    "Are you on mobile?",
    textOutput("result")
  )
  server <- function(input, output, session) {
    output$result <- renderText({
      shinybrowser::is_device_mobile()
    })
  }
  shinyApp(ui, server)
}

---

Is the user on Mac?

Description

Convenience function that checks if the user's operating system is detected as Mac. See get_os() for details.

Usage

is_os_mac()

Value

Whether or not this user using MacOS

Examples

if (interactive()) {
  library(shiny)

  ui <- fluidPage(
    shinybrowser::detect(),
    "Are you on Mac?",
    textOutput("result")
  )
  server <- function(input, output, session) {
    output$result <- renderText({
      shinybrowser::is_os_mac()
    })
  }
  shinyApp(ui, server)
}

---

Is the user on Windows?

Description

Convenience function that checks if the user's operating system is detected as Windows. See get_os() for details.

Usage

is_os_windows()

Value

Whether or not this user using Windows

Examples

if (interactive()) {
  library(shiny)

  ui <- fluidPage(
    shinybrowser::detect(),
    "Are you on Windows?",
    textOutput("result")
  )
  server <- function(input, output, session) {
    output$result <- renderText({
      shinybrowser::is_os_windows()
    })
  }
  shinyApp(ui, server)
}

---

Browsers that can be detected with {shinybrowser}

Description

Browsers that can be detected with {shinybrowser}

---

Devices that can be detected with {shinybrowser}

Description

Devices that can be detected with {shinybrowser}

---

Operating systems that can be detected with {shinybrowser}

Description

Operating systems that can be detected with {shinybrowser}

---