keypress-tool

keypress-tool

Usage

import KeyPress from 'keypress-tool';

// Calling it with the same parameters returns identical objects
KeyPress('A', 'ctrl') === KeyPress('A', 'ctrl'); // true
KeyPress('A', 'ctrl') === KeyPress('A', 'ctrl', 'shift'); // false

// Add listeners like this
KeyPress('A', 'shift').addListener(ev => {
  console.log('Key combination pressed');
});

// Set the second parameter to true if this listener should also fire during text input
KeyPress('A', 'meta').addListener(handleEvent, true);

function handleEvent(event) {
  console.log('Key combination pressed');
}

// Clean up (very important to avoid memory leaks)
KeyPress('A', 'meta').removeListener(handleEvent);

// The default is to preventDefault. Pass 'executeDefault' if you want to change this
KeyPress('A', 'executeDefault');

// Generate a short description of the key combination
let k = KeyPress('A', 'ctrl', 'shift', 'alt', 'meta');
k.toString(); // 'Win+Ctrl+Alt+Shift+A' on most platforms
k.toString(); // '⌃⌥⇧⌘A' on macOS

Only these special keys work in fullscreen in Safari:

Tab, Enter, Space, Left, Up, Right, Down, ; = , - . / ` [ ] '

See also:

• Quirksmode: Detecting keystrokes

Contributing

Download source and compile:

git clone [e-mail]:JannesMeyer/keypress-tool.git
yarn

Or compile and watch for file changes:

yarn start

Run tests:

yarn test

Pull requests welcome. Please respect the existing formatting and indentation style. Furthermore, please add tests for code that you contribute.

License

LGPL v3.0