90 lines
3.3 KiB
JavaScript
90 lines
3.3 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.verifyPseudoArgs = exports.pseudos = void 0;
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// While filters are precompiled, pseudos get called when they are needed
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exports.pseudos = {
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empty: function (elem, _a) {
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var adapter = _a.adapter;
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return !adapter.getChildren(elem).some(function (elem) {
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// FIXME: `getText` call is potentially expensive.
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return adapter.isTag(elem) || adapter.getText(elem) !== "";
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});
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},
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"first-child": function (elem, _a) {
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var adapter = _a.adapter, equals = _a.equals;
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var firstChild = adapter
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.getSiblings(elem)
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.find(function (elem) { return adapter.isTag(elem); });
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return firstChild != null && equals(elem, firstChild);
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},
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"last-child": function (elem, _a) {
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var adapter = _a.adapter, equals = _a.equals;
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var siblings = adapter.getSiblings(elem);
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for (var i = siblings.length - 1; i >= 0; i--) {
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if (equals(elem, siblings[i]))
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return true;
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if (adapter.isTag(siblings[i]))
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break;
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}
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return false;
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},
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"first-of-type": function (elem, _a) {
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var adapter = _a.adapter, equals = _a.equals;
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var siblings = adapter.getSiblings(elem);
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var elemName = adapter.getName(elem);
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for (var i = 0; i < siblings.length; i++) {
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var currentSibling = siblings[i];
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if (equals(elem, currentSibling))
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return true;
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if (adapter.isTag(currentSibling) &&
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adapter.getName(currentSibling) === elemName) {
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break;
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}
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}
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return false;
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},
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"last-of-type": function (elem, _a) {
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var adapter = _a.adapter, equals = _a.equals;
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var siblings = adapter.getSiblings(elem);
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var elemName = adapter.getName(elem);
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for (var i = siblings.length - 1; i >= 0; i--) {
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var currentSibling = siblings[i];
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if (equals(elem, currentSibling))
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return true;
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if (adapter.isTag(currentSibling) &&
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adapter.getName(currentSibling) === elemName) {
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break;
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}
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}
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return false;
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},
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"only-of-type": function (elem, _a) {
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var adapter = _a.adapter, equals = _a.equals;
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var elemName = adapter.getName(elem);
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return adapter
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.getSiblings(elem)
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.every(function (sibling) {
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return equals(elem, sibling) ||
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!adapter.isTag(sibling) ||
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adapter.getName(sibling) !== elemName;
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});
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},
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"only-child": function (elem, _a) {
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var adapter = _a.adapter, equals = _a.equals;
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return adapter
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.getSiblings(elem)
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.every(function (sibling) { return equals(elem, sibling) || !adapter.isTag(sibling); });
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},
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};
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function verifyPseudoArgs(func, name, subselect) {
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if (subselect === null) {
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if (func.length > 2) {
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throw new Error("pseudo-selector :".concat(name, " requires an argument"));
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}
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}
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else if (func.length === 2) {
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throw new Error("pseudo-selector :".concat(name, " doesn't have any arguments"));
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}
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}
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exports.verifyPseudoArgs = verifyPseudoArgs;
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