141 lines
5.7 KiB
JavaScript
141 lines
5.7 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.compileGeneralSelector = void 0;
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var attributes_1 = require("./attributes");
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var pseudo_selectors_1 = require("./pseudo-selectors");
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var css_what_1 = require("css-what");
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/*
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* All available rules
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*/
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function compileGeneralSelector(next, selector, options, context, compileToken) {
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var adapter = options.adapter, equals = options.equals;
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switch (selector.type) {
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case css_what_1.SelectorType.PseudoElement: {
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throw new Error("Pseudo-elements are not supported by css-select");
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}
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case css_what_1.SelectorType.ColumnCombinator: {
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throw new Error("Column combinators are not yet supported by css-select");
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}
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case css_what_1.SelectorType.Attribute: {
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if (selector.namespace != null) {
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throw new Error("Namespaced attributes are not yet supported by css-select");
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}
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if (!options.xmlMode || options.lowerCaseAttributeNames) {
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selector.name = selector.name.toLowerCase();
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}
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return attributes_1.attributeRules[selector.action](next, selector, options);
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}
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case css_what_1.SelectorType.Pseudo: {
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return (0, pseudo_selectors_1.compilePseudoSelector)(next, selector, options, context, compileToken);
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}
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// Tags
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case css_what_1.SelectorType.Tag: {
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if (selector.namespace != null) {
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throw new Error("Namespaced tag names are not yet supported by css-select");
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}
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var name_1 = selector.name;
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if (!options.xmlMode || options.lowerCaseTags) {
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name_1 = name_1.toLowerCase();
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}
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return function tag(elem) {
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return adapter.getName(elem) === name_1 && next(elem);
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};
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}
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// Traversal
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case css_what_1.SelectorType.Descendant: {
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if (options.cacheResults === false ||
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typeof WeakSet === "undefined") {
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return function descendant(elem) {
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var current = elem;
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while ((current = adapter.getParent(current))) {
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if (adapter.isTag(current) && next(current)) {
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return true;
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}
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}
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return false;
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};
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}
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// @ts-expect-error `ElementNode` is not extending object
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var isFalseCache_1 = new WeakSet();
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return function cachedDescendant(elem) {
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var current = elem;
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while ((current = adapter.getParent(current))) {
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if (!isFalseCache_1.has(current)) {
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if (adapter.isTag(current) && next(current)) {
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return true;
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}
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isFalseCache_1.add(current);
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}
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}
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return false;
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};
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}
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case "_flexibleDescendant": {
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// Include element itself, only used while querying an array
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return function flexibleDescendant(elem) {
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var current = elem;
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do {
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if (adapter.isTag(current) && next(current))
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return true;
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} while ((current = adapter.getParent(current)));
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return false;
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};
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}
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case css_what_1.SelectorType.Parent: {
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return function parent(elem) {
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return adapter
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.getChildren(elem)
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.some(function (elem) { return adapter.isTag(elem) && next(elem); });
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};
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}
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case css_what_1.SelectorType.Child: {
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return function child(elem) {
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var parent = adapter.getParent(elem);
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return parent != null && adapter.isTag(parent) && next(parent);
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};
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}
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case css_what_1.SelectorType.Sibling: {
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return function sibling(elem) {
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var siblings = adapter.getSiblings(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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break;
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if (adapter.isTag(currentSibling) && next(currentSibling)) {
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return true;
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}
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}
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return false;
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};
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}
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case css_what_1.SelectorType.Adjacent: {
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if (adapter.prevElementSibling) {
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return function adjacent(elem) {
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var previous = adapter.prevElementSibling(elem);
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return previous != null && next(previous);
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};
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}
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return function adjacent(elem) {
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var siblings = adapter.getSiblings(elem);
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var lastElement;
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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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break;
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if (adapter.isTag(currentSibling)) {
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lastElement = currentSibling;
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}
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}
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return !!lastElement && next(lastElement);
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};
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}
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case css_what_1.SelectorType.Universal: {
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if (selector.namespace != null && selector.namespace !== "*") {
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throw new Error("Namespaced universal selectors are not yet supported by css-select");
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}
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return next;
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}
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}
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}
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exports.compileGeneralSelector = compileGeneralSelector;
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