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{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.
These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.