React Shortcuts ========= **Manage keyboard shortcuts from one place.** [![Build Status](https://travis-ci.org/avocode/react-shortcuts.svg)][travis] Intro ------ Managing keyboard shortcuts can sometimes get messy. Or always, if not implemented the right way. Real problems: - You can't easily tell which shortcut is bound to which component - You have to write a lot of boilerplate code (`addEventListeners`, `removeEventListeners`, ...) - Memory leaks are a real problem if components don’t remove their listeners properly - Platform specific shortcuts is another headache - It's more difficult to implement feature like user-defined shortcuts - You can't easily get allthe application shortcuts and display it (e.g. in settings) **React shortcuts to the rescue!** ----------- With `react-shortcuts` you can declaratively manage shortcuts for each one of your React components. **Important parts of React Shortcuts:** - Your `keymap` definition - `ShortcutManager` which handles `keymap` - `` component for handling shortcuts Try online demo ------- [![Edit l40jjo48nl](https://codesandbox.io/static/img/play-codesandbox.svg)](https://codesandbox.io/s/l40jjo48nl) Quick tour ---------- #### 1. `npm install react-shortcuts` #### 2. **Define application shortcuts** Create a new JS, Coffee, JSON or CSON file wherever you want (which probably is your project root). And define the shortcuts for your React component. **Keymap definition** ```json { "Namespace": { "Action": "Shortcut", "Action_2": ["Shortcut", "Shortcut"], "Action_3": { "osx": "Shortcut", "windows": ["Shortcut", "Shortcut"], "linux": "Shortcut", "other": "Shortcut" } } } ``` - `Namespace` should ideally be the component’s `displayName`. - `Action` describes what will be happening. For example `MODAL_CLOSE`. - `Keyboard shortcut` can be a string, array of strings or an object which specifies platform differences (Windows, OSX, Linux, other). The shortcut may be composed of single keys (`a`, `6`,…), combinations (`command+shift+k`) or sequences (`up up down down left right left right B A`). > **Combokeys** is used under the hood for handling the shortcuts. [Read more][mousetrap] about how you can specify keys. ##### Example `keymap` definition: ```javascript export default { TODO_ITEM: { MOVE_LEFT: 'left', MOVE_RIGHT: 'right', MOVE_UP: ['up', 'w'], DELETE: { osx: ['command+backspace', 'k'], windows: 'delete', linux: 'delete', }, }, } ``` Save this file as `keymap.[js|coffee|json|cson]` and require it into your main file. ```javascript import keymap from './keymap' ``` #### 3. Rise of the ShortcutsManager Define your keymap in whichever supported format but in the end it must be an object. `ShortcutsManager` can’t parse JSON and will certainly not be happy about the situation. ```javascript import keymap from './keymap' import { ShortcutManager } from 'react-shortcuts' const shortcutManager = new ShortcutManager(keymap) // Or like this const shortcutManager = new ShortcutManager() shortcutManager.setKeymap(keymap) ``` #### 4. Include `shortcutManager` into getChildContext of some parent component. So that `` can receive it. ```javascript class App extends React.Component { getChildContext() { return { shortcuts: shortcutManager } } } App.childContextTypes = { shortcuts: PropTypes.object.isRequired } ``` #### 5. Require the component You need to require the component in the file you want to use shortcuts in. For example ``. ```javascript import { Shortcuts } from `react-shortcuts` class TodoItem extends React.Component { _handleShortcuts = (action, event) => { switch (action) { case 'MOVE_LEFT': console.log('moving left') break case 'MOVE_RIGHT': console.log('moving right') break case 'MOVE_UP': console.log('moving up') break case 'COPY': console.log('copying stuff') break } } render() { return (

Make something amazing today

) } } ``` > The `` component creates a `` element in HTML, binds listeners and adds tabIndex to the element so that it’s focusable. `_handleShortcuts` is invoked when some of the defined shortcuts fire. ## Custom props for `` component - `handler`: func - callback function that will fire when a shortcut occurs - `name`: string - The name of the namespace specified in keymap file - `tabIndex`: number - Default is `-1` - `className`: string - `eventType`: string - Just for gourmets (keyup, keydown, keypress) - `stopPropagation`: bool - `preventDefault`: bool - `targetNodeSelector`: DOM Node Selector like `body` or `.my-class` - Use this one with caution. It binds listeners to the provided string instead of the component. - `global`: bool - Use this when you have some global app wide shortcuts like `CMD+Q`. - `isolate`: bool - Use this when a child component has React's key handler (onKeyUp, onKeyPress, onKeyDown). Otherwise, React Shortcuts stops propagation of that event due to nature of event delegation that React uses internally. - `alwaysFireHandler`: bool - Use this when you want events keep firing on the focused input elements. ## Thanks, Atom This library is inspired by [Atom Keymap]. [Atom Keymap]: https://github.com/atom/atom-keymap/ [travis]: https://travis-ci.org/avocode/react-shortcuts [mousetrap]: https://craig.is/killing/mice [keymaps]: https://github.com/atom/atom-keymap/

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react-shortcuts	13,301	329	30.1 kB	52	-	MIT