shortcutter/esm/context.js

Tiny, dependency-free library to manage keyboard shortcuts in your application.

var __read = (this && this.__read) || function (o, n) {
    var m = typeof Symbol === "function" && o[Symbol.iterator];
    if (!m) return o;
    var i = m.call(o), r, ar = [], e;
    try {
        while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
    }
    catch (error) { e = { error: error }; }
    finally {
        try {
            if (r && !r.done && (m = i["return"])) m.call(i);
        }
        finally { if (e) throw e.error; }
    }
    return ar;
};
var __spreadArray = (this && this.__spreadArray) || function (to, from, pack) {
    if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {
        if (ar || !(i in from)) {
            if (!ar) ar = Array.prototype.slice.call(from, 0, i);
            ar[i] = from[i];
        }
    }
    return to.concat(ar || Array.prototype.slice.call(from));
};
import { normalizeShortcut, phasesIterator } from './helpers';
export function createContext(contextName) {
    if (typeof contextName !== 'string' || contextName.length < 1) {
        throw new Error('Context has to has a name.');
    }
    var SHORTCUTS = new Map();
    return {
        add: function (shortcut, callback, phases) {
            if (phases === void 0) { phases = "down|press"; }
            var normalizedShortcut = normalizeShortcut(shortcut);
            phasesIterator(phases, normalizedShortcut, function (phasedShortcut, phase) {
                if (SHORTCUTS.has(phasedShortcut)) {
                    throw new Error("Shortcut \"".concat(normalizedShortcut, "\" is already added to \"").concat(phase, "\" phase."));
                }
                SHORTCUTS.set(phasedShortcut, callback);
            });
        },
        get: function (shortcut, phase) {
            var normalizedShortcut = normalizeShortcut(shortcut);
            var phasedShortcut = "".concat(normalizedShortcut, "_").concat(phase);
            if (!SHORTCUTS.has(phasedShortcut)) {
                throw new Error("Shortcut \"".concat(normalizedShortcut, "\" does not exist in \"").concat(contextName, "\" context."));
            }
            return SHORTCUTS.get(phasedShortcut);
        },
        has: function (shortcut, phase) {
            var normalizedShortcut = normalizeShortcut(shortcut);
            var phasedShortcut = "".concat(normalizedShortcut, "_").concat(phase);
            return SHORTCUTS.has(phasedShortcut);
        },
        remove: function (shortcut, phases) {
            if (phases === void 0) { phases = "down|press"; }
            var normalizedShortcut = normalizeShortcut(shortcut);
            phasesIterator(phases, normalizedShortcut, function (phasedShortcut) {
                if (!SHORTCUTS.has(phasedShortcut)) {
                    throw new Error("Shortcut \"".concat(normalizedShortcut, "\" does not exist in \"").concat(contextName, "\" context."));
                }
                SHORTCUTS.delete(phasedShortcut);
            });
        },
        getAll: function () {
            return __spreadArray([], __read(SHORTCUTS.keys()), false);
        },
        clear: function () {
            SHORTCUTS.clear();
        },
    };
}