@antv/x6/lib/common/modifier/index.js

JavaScript diagramming library that uses SVG and HTML for rendering

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.parseModifierKey = parseModifierKey;
exports.isModifierKeyEqual = isModifierKeyEqual;
exports.isModifierKeyMatch = isModifierKeyMatch;
function parseModifierKey(modifiers) {
    const or = [];
    const and = [];
    if (Array.isArray(modifiers)) {
        or.push(...modifiers);
    }
    else {
        modifiers.split('|').forEach((item) => {
            if (item.indexOf('&') === -1) {
                or.push(item);
            }
            else {
                and.push(...item.split('&'));
            }
        });
    }
    return { or, and };
}
function isModifierKeyEqual(modifiers1, modifiers2) {
    if (modifiers1 != null && modifiers2 != null) {
        const m1 = parseModifierKey(modifiers1);
        const m2 = parseModifierKey(modifiers2);
        const or1 = m1.or.sort();
        const or2 = m2.or.sort();
        const and1 = m1.and.sort();
        const and2 = m2.and.sort();
        const equal = (a1, a2) => {
            return (a1.length === a2.length &&
                (a1.length === 0 || a1.every((a, i) => a === a2[i])));
        };
        return equal(or1, or2) && equal(and1, and2);
    }
    if (modifiers1 == null && modifiers2 == null) {
        return true;
    }
    return false;
}
function isModifierKeyMatch(e, modifiers, strict) {
    if (modifiers == null ||
        (Array.isArray(modifiers) && modifiers.length === 0)) {
        return strict
            ? e.altKey !== true &&
                e.ctrlKey !== true &&
                e.metaKey !== true &&
                e.shiftKey !== true
            : true;
    }
    const { or, and } = parseModifierKey(modifiers);
    const match = (key) => {
        const name = `${key.toLowerCase()}Key`;
        return e[name] === true;
    };
    return or.some((key) => match(key)) && and.every((key) => match(key));
}
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