k5kit/dist/shortcuts.js

Utilities for TypeScript and Svelte

export function is_mac() {
    return /(Mac|iPhone|iPod|iPad)/i.test(navigator.platform);
}
/** Check the pressed modifiers for an event. This is strict, so if you pass no modifiers, it will return true if the event has no modifiers. */
export function check_modifiers(e, ...modifiers) {
    let shift = false;
    let alt = false;
    let ctrl = false;
    let meta = false;
    for (const modifier of modifiers) {
        if (modifier === 'shift') {
            shift = true;
        }
        else if (modifier === 'alt') {
            alt = true;
        }
        else if (modifier === 'cmdOrCtrl') {
            ctrl = !is_mac();
            meta = !ctrl;
        }
    }
    return (!!e.shiftKey === shift && !!e.altKey === alt && !!e.ctrlKey === ctrl && !!e.metaKey === meta);
}
/** Check the pressed key and modifiers for a keyboard event. This is strict, so if you pass no modifiers, it will return true if the event has no modifiers. */
export function check_shortcut(e, key, ...modifiers) {
    if (e.key.toUpperCase() !== key.toUpperCase())
        return false;
    return check_modifiers(e, ...modifiers);
}