countdown() timer no longer provides global styles for all other
countdown timers. Instead, use countdown_style() with the same style-related
arguments to set global styles for all countdown timers. (#36)Rewritten countdown timer CSS now uses CSS variables rather than a template rendered in R. This improves how countdown's dependencies are handled and makes it easier to customize and use countdown in other projects and settings. (#36)
Implemented emitting of native browser events alongside Shiny communication. (#37)
Added two new event types: "finished" when the timer completes its cycle
and "warning" when it reaches the warning period. (#37)
Set class = "inline" in countdown() to create an inline, rather than
absolute-positioned, countdown timer. (#36)
Set class = "no-controls" in countdown() to create a countdown timer
without the controls. (#40)
Fixed an issue where custom URLs for play_sound were not used for the timer
end sound. (thanks @jannismain, #38)
Fixed countdown_fullscreen() not passing along class and start_immediately parameters. (#43)
Switched to using {bslib} to stylize the demo countdown shiny app. (#37)
Clarified play_sound documentation to emphasize custom sounds require the
countdown clock to be embedded in a website, presentation, or Shiny app to
be played due to JavaScript limitations on local files. (#44)
{countdown} now uses {prismatic} for color calculations.
The JavaScript implementation of countdown has been completely rewritten. It now supports a wide range of new interactions:
Start, pause, and reset the timer (click, click again, double click).
+ or - buttons to bump timer up or down.
Keyboard shortcuts: Space/Enter to start/stop, Escape to reset, and up/down arrows to bump timer.
The timers now work on mobile devices (in particular in xaringan slides).
countdown timers can now be used in or controlled by Shiny apps:
Use countdown_update() to update key initial timer settings.
Use countdown_action() to trigger common action: start, stop, reset,
bump up or bump down.
State changes are reported back to the Shiny app, e.g. Shiny apps can
use input$timer to receive event data from the timer with
id = "timer".
countdown_shiny_example() runs a Shiny app that demonstrates key
Shiny app features.
Timers can now start immediately by setting the argument
start_immediately = TRUE. When TRUE, timers will start as soon as they
are visible. This feature works in xaringan slides, Quarto slides and general
HTML web pages (thanks @Dr-Joe-Roberts, @davidkane9, #12).
The countdown_app() now supports bookmarking, making it possible to share
pre-configured timer URLs. This feature improves the usability of the
timer available at https://apps.garrickadenbuie.com/countdown.
Any sound file hosted online can no be played in place of the default sound
by setting play_sound to the absolute or relative URL of the sound file.
The default CSS styles were updated for better automatic vertical centering of the countdown digits.
Added .countdown-time class to <code> element of timer. Renamed .digits
class to .countdown-digits. This ensures that it's possible to write CSS
rules with high specificity values (#10).
Added style argument to countdown() for inlining CSS rules to the parent
div of the timer.
Added a warning state to the coundown timer that is enabled by setting
warn_when = N. The warning class is applied to the timer for the last N
seconds, and the colors of this state are configured with the arguments with
color_warning_ prefix (thanks @hadley, #5).
Added a new convenience function for full-screen (and stand-alone) countdown
timers, countdown_fullscreen(). This function's defaults work best when
called from RStudio, in xaringan slides it will still be necessary to fiddle
with font_size, margin, and padding (thanks @hadley, #6).
Add countdown_app() to launch an interactive Shiny app with a full-screen
countdown timer.
Added update_every argument to countdown() to only update the timer every
N seconds. Normal updating (second-by-second) is always used for the last
two periods of the countdown time. Thanks @mine-cetinkaya-rundel for the
suggestion.
Added blink_colon argument to countdown() to animate the : in the
countdown timer colon to blink every second. Enabled by default when the
update_every interval is greater than 1 to provide feedback that the timer
is running.