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rewind_disable() stops undo and redo for a session
completely. It destroys each observer that rewind_enable()
made. It also clears the buttons and the rail in the browser. Use
rewind_pause() and rewind_resume() to stop
capture for a short time. Use rewind_disable() to stop it
for the rest of the session.rewind no longer captures fileInput(). Its
value points to a temporary file on the server. Shiny deletes that file
at the next upload. An old snapshot would thus point to a file that does
not exist.rewind_pause() before the first
reactive flush stopped capture for the rest of the session. A later
rewind_resume() did not start it again. This occurred, for
example, with a call to rewind_pause() immediately after
rewind_enable(), before any input changed.rewind_buttons(undo_label = NULL, redo_label = NULL)
now sets aria-label on the buttons. A button with an icon
and no text thus has a correct accessible name.rewind_enable() inside a moduleServer()
now has tests. The documents said “untested” before.First release.
rewind_enable() captures the session inputs into an
undo and redo history. It groups the changes by time. One movement of a
slider is thus one step, and not forty steps.rewind_track() adds the reactiveValues on
the server to the history.rewind_step() puts several changes into one entry with
a label.rewind_buttons() and rewind_ui() give
ready-made undo and redo controls, and a scrubbable history rail.Ctrl/Cmd +
Z, Ctrl/Cmd + Shift
+ Z, and Ctrl + Y. They do
nothing while the user types in a text field.update*Input() table. Inputs from other packages thus
operate with no extra code.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.