95 lines
2.8 KiB
JavaScript
95 lines
2.8 KiB
JavaScript
"use strict";
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module.exports = CSSselect;
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var DomUtils = require("domutils");
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var falseFunc = require("boolbase").falseFunc;
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var compileRaw = require("./lib/compile.js");
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function wrapCompile(func) {
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return function addAdapter(selector, options, context) {
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options = options || {};
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options.adapter = options.adapter || DomUtils;
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return func(selector, options, context);
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};
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}
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var compile = wrapCompile(compileRaw);
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var compileUnsafe = wrapCompile(compileRaw.compileUnsafe);
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function getSelectorFunc(searchFunc) {
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return function select(query, elems, options) {
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options = options || {};
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options.adapter = options.adapter || DomUtils;
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if (typeof query !== "function") {
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query = compileUnsafe(query, options, elems);
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}
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if (query.shouldTestNextSiblings) {
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elems = appendNextSiblings((options && options.context) || elems, options.adapter);
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}
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if (!Array.isArray(elems)) elems = options.adapter.getChildren(elems);
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else elems = options.adapter.removeSubsets(elems);
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return searchFunc(query, elems, options);
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};
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}
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function getNextSiblings(elem, adapter) {
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var siblings = adapter.getSiblings(elem);
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if (!Array.isArray(siblings)) return [];
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siblings = siblings.slice(0);
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while (siblings.shift() !== elem);
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return siblings;
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}
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function appendNextSiblings(elems, adapter) {
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// Order matters because jQuery seems to check the children before the siblings
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if (!Array.isArray(elems)) elems = [elems];
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var newElems = elems.slice(0);
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for (var i = 0, len = elems.length; i < len; i++) {
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var nextSiblings = getNextSiblings(newElems[i], adapter);
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newElems.push.apply(newElems, nextSiblings);
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}
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return newElems;
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}
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var selectAll = getSelectorFunc(function selectAll(query, elems, options) {
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return query === falseFunc || !elems || elems.length === 0 ? [] : options.adapter.findAll(query, elems);
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});
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var selectOne = getSelectorFunc(function selectOne(query, elems, options) {
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return query === falseFunc || !elems || elems.length === 0 ? null : options.adapter.findOne(query, elems);
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});
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function is(elem, query, options) {
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options = options || {};
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options.adapter = options.adapter || DomUtils;
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return (typeof query === "function" ? query : compile(query, options))(elem);
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}
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/*
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the exported interface
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*/
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function CSSselect(query, elems, options) {
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return selectAll(query, elems, options);
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}
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CSSselect.compile = compile;
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CSSselect.filters = compileRaw.Pseudos.filters;
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CSSselect.pseudos = compileRaw.Pseudos.pseudos;
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CSSselect.selectAll = selectAll;
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CSSselect.selectOne = selectOne;
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CSSselect.is = is;
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//legacy methods (might be removed)
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CSSselect.parse = compile;
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CSSselect.iterate = selectAll;
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//hooks
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CSSselect._compileUnsafe = compileUnsafe;
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CSSselect._compileToken = compileRaw.compileToken;
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