58 lines
1.9 KiB
TypeScript
58 lines
1.9 KiB
TypeScript
import { derived, get, writable } from 'svelte/store';
|
|
|
|
export type ShortCut = {
|
|
key: string | string[];
|
|
shift?: boolean;
|
|
ctrl?: boolean;
|
|
alt?: boolean;
|
|
preventDefault?: boolean;
|
|
description?: string;
|
|
callback: (event: KeyboardEvent) => void;
|
|
};
|
|
|
|
function getShortcutId(shortcut: ShortCut) {
|
|
return `${shortcut.key}${shortcut.shift ? '+shift' : ''}${shortcut.ctrl ? '+ctrl' : ''}${
|
|
shortcut.alt ? '+alt' : ''
|
|
}`;
|
|
}
|
|
|
|
export function createKeyMap(keys: ShortCut[]) {
|
|
const store = writable(new Map(keys.map(k => [getShortcutId(k), k])));
|
|
|
|
return {
|
|
handleKeyboardEvent: (event: KeyboardEvent) => {
|
|
const activeElement = document.activeElement as HTMLElement;
|
|
if (activeElement?.tagName === 'INPUT' || activeElement?.tagName === 'TEXTAREA') return;
|
|
const key = [...get(store).values()].find(k => {
|
|
if (Array.isArray(k.key) ? !k.key.includes(event.key) : k.key !== event.key) return false;
|
|
if ('shift' in k && k.shift !== event.shiftKey) return false;
|
|
if ('ctrl' in k && k.ctrl !== event.ctrlKey) return false;
|
|
if ('alt' in k && k.alt !== event.altKey) return false;
|
|
return true;
|
|
});
|
|
if (key && key.preventDefault) event.preventDefault();
|
|
key?.callback(event);
|
|
},
|
|
addShortcut: (shortcut: ShortCut) => {
|
|
if (Array.isArray(shortcut.key)) {
|
|
for (const k of shortcut.key) {
|
|
store.update(shortcuts => {
|
|
const id = getShortcutId({ ...shortcut, key: k });
|
|
shortcuts.delete(id);
|
|
shortcuts.set(id, { ...shortcut, key: k });
|
|
return shortcuts;
|
|
});
|
|
}
|
|
} else {
|
|
store.update(shortcuts => {
|
|
const id = getShortcutId(shortcut);
|
|
shortcuts.delete(id);
|
|
shortcuts.set(id, shortcut);
|
|
return shortcuts;
|
|
});
|
|
}
|
|
},
|
|
keys: derived(store, $store => Array.from($store.values()))
|
|
};
|
|
}
|