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is-undo-redo

1.0.0 • Public • Published

is-undo-redo

experimental

Check if a key event is undo or redo. This uses Cmd+Z or Ctrl+Z for undo, and Cmd+Shift+Z or Ctrl+Shift+Z for redo.

var events = require('dom-events')
var isUndo = require('is-undo-redo').undo
var isRedo = require('is-undo-redo').redo
 
events.on(element, 'keydown', function(ev) {
    if (isUndo(ev)) {
        //.. handle undo
    } else if (isRedo(ev)) {
        //.. handle redo
    }
})

Usage

NPM

isUndoRedo.undo(event[, style])

isUndoRedo.redo(event[, style])

You can specify a style string to explicitly allow one keystroke or the other:

  • "mac" only allows Cmd+Z and Cmd+Shift+Z
  • "windows" only allows Ctrl+Z and Ctrl+Shift+Z

If no style is specified, both will be accepted.

isUndoRedo(event[, style])

Returns true if the key event was either undo or redo.

License

MIT, see LICENSE.md for details.

install

npm i is-undo-redo

Downloadsweekly downloads

26

version

1.0.0

license

MIT

homepage

github.com

repository

Gitgithub

last publish

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