A fork of https://github.com/ueokande/vim-vixen
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
89 lines
2.1 KiB
89 lines
2.1 KiB
import * as dom from '../shared/utils/dom'; |
|
import Key, * as keys from './domains/Key'; |
|
|
|
const cancelKey = (e: KeyboardEvent): boolean => { |
|
if (e.key === 'Escape') { |
|
return true; |
|
} |
|
if (e.key === '[' && e.ctrlKey) { |
|
return true; |
|
} |
|
if (e.key === 'c' && e.ctrlKey) { |
|
return true; |
|
} |
|
return false; |
|
}; |
|
|
|
export default class InputDriver { |
|
private pressed: {[key: string]: string} = {}; |
|
|
|
private onKeyListeners: ((key: Key) => boolean)[] = []; |
|
|
|
constructor(target: HTMLElement) { |
|
this.pressed = {}; |
|
this.onKeyListeners = []; |
|
|
|
target.addEventListener('keypress', this.onKeyPress.bind(this)); |
|
target.addEventListener('keydown', this.onKeyDown.bind(this)); |
|
target.addEventListener('keyup', this.onKeyUp.bind(this)); |
|
} |
|
|
|
onKey(cb: (key: Key) => boolean) { |
|
this.onKeyListeners.push(cb); |
|
} |
|
|
|
private onKeyPress(e: KeyboardEvent) { |
|
if (this.pressed[e.key] && this.pressed[e.key] !== 'keypress') { |
|
return; |
|
} |
|
this.pressed[e.key] = 'keypress'; |
|
this.capture(e); |
|
} |
|
|
|
private onKeyDown(e: KeyboardEvent) { |
|
if (this.pressed[e.key] && this.pressed[e.key] !== 'keydown') { |
|
return; |
|
} |
|
this.pressed[e.key] = 'keydown'; |
|
this.capture(e); |
|
} |
|
|
|
private onKeyUp(e: KeyboardEvent) { |
|
delete this.pressed[e.key]; |
|
} |
|
|
|
// eslint-disable-next-line max-statements |
|
private capture(e: KeyboardEvent) { |
|
let target = e.target; |
|
if (!(target instanceof HTMLElement)) { |
|
return; |
|
} |
|
if (this.fromInput(target)) { |
|
if (cancelKey(e) && target.blur) { |
|
target.blur(); |
|
} |
|
return; |
|
} |
|
if (['Shift', 'Control', 'Alt', 'OS'].includes(e.key)) { |
|
// pressing only meta key is ignored |
|
return; |
|
} |
|
|
|
let key = keys.fromKeyboardEvent(e); |
|
for (let listener of this.onKeyListeners) { |
|
let stop = listener(key); |
|
if (stop) { |
|
e.preventDefault(); |
|
e.stopPropagation(); |
|
break; |
|
} |
|
} |
|
} |
|
|
|
private fromInput(e: Element) { |
|
return e instanceof HTMLInputElement || |
|
e instanceof HTMLTextAreaElement || |
|
e instanceof HTMLSelectElement || |
|
dom.isContentEditable(e); |
|
} |
|
}
|
|
|