@cycle/dom/lib/cjs/ScopeChecker.js

The standard DOM Driver for Cycle.js, based on Snabbdom

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var utils_1 = require("./utils");
var ScopeChecker = /** @class */ (function () {
    function ScopeChecker(namespace, isolateModule) {
        this.namespace = namespace;
        this.isolateModule = isolateModule;
        this._namespace = namespace.filter(function (n) { return n.type !== 'selector'; });
    }
    /**
     * Checks whether the given element is *directly* in the scope of this
     * scope checker. Being contained *indirectly* through other scopes
     * is not valid. This is crucial for implementing parent-child isolation,
     * so that the parent selectors don't search inside a child scope.
     */
    ScopeChecker.prototype.isDirectlyInScope = function (leaf) {
        var namespace = this.isolateModule.getNamespace(leaf);
        if (!namespace) {
            return false;
        }
        if (this._namespace.length > namespace.length ||
            !utils_1.isEqualNamespace(this._namespace, namespace.slice(0, this._namespace.length))) {
            return false;
        }
        for (var i = this._namespace.length; i < namespace.length; i++) {
            if (namespace[i].type === 'total') {
                return false;
            }
        }
        return true;
    };
    return ScopeChecker;
}());
exports.ScopeChecker = ScopeChecker;
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