![]() If the keyboard layout is ASCII-capable (i.e., can input ASCII alphabets), use 0 or compute with the following additional rules.Otherwise, i.e., pressed key inputs a unicode character:.If the pressed key inputs a different ASCII character with a Shift key modifier, use a keycode for it.If the pressed key inputs a different ASCII character with no modifier key, use a keycode for it.If the pressed key inputs an ASCII alphabetic or numeric character with a Shift key modifier, use a keycode for it.If the pressed key inputs an ASCII alphabetic or numeric character with no modifier key, use a keycode for it.If the system is Mac and the native keycode of the pressed key indicates that the key is 0-9, use a keycode for it.If the system is Windows and the native keycode of the pressed key indicates that the key is a-z or 0-9, use a keycode for it.If the inputting character can be inputted with the US keyboard layout, they use the ke圜ode value on the US keyboard layout.įirefox gets ke圜ode values from ASCII characters inputtable by the key - even with shift modifiers or an ASCII capable keyboard layout. Google Chrome, Chromium and Safari must decide the value from the input character. ![]() IE just exposes the native virtual keycode value as KeyboardEvent.ke圜ode. The value of key events which are caused by pressing or releasing printable keys in standard position is not compatible between browsers. Unfortunately, some browsers still don't have it, so you'll have to be careful to make sure you use one which is supported on all target browsers. Instead, you should use de, if it's implemented. You should avoid using this if possible it's been deprecated for some time. If the key can't be identified, this value is 0. This is usually the decimal ASCII ( RFC 20) or Windows 1252 code corresponding to the key. The deprecated KeyboardEvent.ke圜ode read-only property represents a system and implementation dependent numerical code identifying the unmodified value of the pressed key. Be aware that this feature may cease to work at any time. Avoid using it, and update existing code if possible see the compatibility table at the bottom of this page to guide your decision. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. However, if you have a different view on this, please create an issue/request on GitHub.Deprecated: This feature is no longer recommended. I found it hard to come up with a meaningful use case for passing an keyboard event object or the relevant key to a component. I believe this is not a good use case of HoC. The one left on the top of the stack is the one only exclusive handler. Technically, exclusive handlers are put into a stack upon mounted or when changed from non-exclusive to exclusive Įxclusive handlers are removed from the stack upon unmounted or disabled or changed to non-exclusive. If more than one enabled handlers are isExclusive, the most recently mounted/assigned handler wins. When the modal is closed/unmounted, they will be working again. When the modal opens,Īll other handlers will be temporarily suspended. In the above example, the key handler in the modal could set to be isExclusive. When a handler set to isExclusive,Īll other key handlers will be suspended. The isExclusive prop can be really helpful in this situation. There could be other key handlers in your app, they all should be disabled to avoid unexpected results. The product options in the modal and the product list in the background at the same time. console.log(`do something upon keydown event of $). Supports handling multiple keys (as an array) by one handler ĭemo/dist/index.html Installation npm install react-keyboard-event-handlerĪPI Basic usage import KeyboardEventHandler from 'react-keyboard-event-handler'.Provides easy-to-use key names and key alisa such as numeric and alphanumeric to free you from dealing with numeric key codes.Supports multiple handler instances and provides an easy way to control the enable/disable status for each handler via props isDisabled and isExclusive.A React component for handling keyboard events (keyup, keydown and keypress *).
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