120 lines
4.4 KiB
JavaScript
120 lines
4.4 KiB
JavaScript
|
"use strict";
|
||
|
|
var __importDefault = (this && this.__importDefault) || function (mod) {
|
||
|
|
return (mod && mod.__esModule) ? mod : { "default": mod };
|
||
|
|
};
|
||
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
||
|
|
exports.compileToken = exports.compileUnsafe = exports.compile = void 0;
|
||
|
|
var css_what_1 = require("css-what");
|
||
|
|
var boolbase_1 = require("boolbase");
|
||
|
|
var sort_1 = __importDefault(require("./sort"));
|
||
|
|
var procedure_1 = require("./procedure");
|
||
|
|
var general_1 = require("./general");
|
||
|
|
var subselects_1 = require("./pseudo-selectors/subselects");
|
||
|
|
/**
|
||
|
|
* Compiles a selector to an executable function.
|
||
|
|
*
|
||
|
|
* @param selector Selector to compile.
|
||
|
|
* @param options Compilation options.
|
||
|
|
* @param context Optional context for the selector.
|
||
|
|
*/
|
||
|
|
function compile(selector, options, context) {
|
||
|
|
var next = compileUnsafe(selector, options, context);
|
||
|
|
return (0, subselects_1.ensureIsTag)(next, options.adapter);
|
||
|
|
}
|
||
|
|
exports.compile = compile;
|
||
|
|
function compileUnsafe(selector, options, context) {
|
||
|
|
var token = typeof selector === "string" ? (0, css_what_1.parse)(selector) : selector;
|
||
|
|
return compileToken(token, options, context);
|
||
|
|
}
|
||
|
|
exports.compileUnsafe = compileUnsafe;
|
||
|
|
function includesScopePseudo(t) {
|
||
|
|
return (t.type === "pseudo" &&
|
||
|
|
(t.name === "scope" ||
|
||
|
|
(Array.isArray(t.data) &&
|
||
|
|
t.data.some(function (data) { return data.some(includesScopePseudo); }))));
|
||
|
|
}
|
||
|
|
var DESCENDANT_TOKEN = { type: css_what_1.SelectorType.Descendant };
|
||
|
|
var FLEXIBLE_DESCENDANT_TOKEN = {
|
||
|
|
type: "_flexibleDescendant",
|
||
|
|
};
|
||
|
|
var SCOPE_TOKEN = {
|
||
|
|
type: css_what_1.SelectorType.Pseudo,
|
||
|
|
name: "scope",
|
||
|
|
data: null,
|
||
|
|
};
|
||
|
|
/*
|
||
|
|
* CSS 4 Spec (Draft): 3.3.1. Absolutizing a Scope-relative Selector
|
||
|
|
* http://www.w3.org/TR/selectors4/#absolutizing
|
||
|
|
*/
|
||
|
|
function absolutize(token, _a, context) {
|
||
|
|
var adapter = _a.adapter;
|
||
|
|
// TODO Use better check if the context is a document
|
||
|
|
var hasContext = !!(context === null || context === void 0 ? void 0 : context.every(function (e) {
|
||
|
|
var parent = adapter.isTag(e) && adapter.getParent(e);
|
||
|
|
return e === subselects_1.PLACEHOLDER_ELEMENT || (parent && adapter.isTag(parent));
|
||
|
|
}));
|
||
|
|
for (var _i = 0, token_1 = token; _i < token_1.length; _i++) {
|
||
|
|
var t = token_1[_i];
|
||
|
|
if (t.length > 0 && (0, procedure_1.isTraversal)(t[0]) && t[0].type !== "descendant") {
|
||
|
|
// Don't continue in else branch
|
||
|
|
}
|
||
|
|
else if (hasContext && !t.some(includesScopePseudo)) {
|
||
|
|
t.unshift(DESCENDANT_TOKEN);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
t.unshift(SCOPE_TOKEN);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
function compileToken(token, options, context) {
|
||
|
|
var _a;
|
||
|
|
token = token.filter(function (t) { return t.length > 0; });
|
||
|
|
token.forEach(sort_1.default);
|
||
|
|
context = (_a = options.context) !== null && _a !== void 0 ? _a : context;
|
||
|
|
var isArrayContext = Array.isArray(context);
|
||
|
|
var finalContext = context && (Array.isArray(context) ? context : [context]);
|
||
|
|
absolutize(token, options, finalContext);
|
||
|
|
var shouldTestNextSiblings = false;
|
||
|
|
var query = token
|
||
|
|
.map(function (rules) {
|
||
|
|
if (rules.length >= 2) {
|
||
|
|
var first = rules[0], second = rules[1];
|
||
|
|
if (first.type !== "pseudo" || first.name !== "scope") {
|
||
|
|
// Ignore
|
||
|
|
}
|
||
|
|
else if (isArrayContext && second.type === "descendant") {
|
||
|
|
rules[1] = FLEXIBLE_DESCENDANT_TOKEN;
|
||
|
|
}
|
||
|
|
else if (second.type === "adjacent" ||
|
||
|
|
second.type === "sibling") {
|
||
|
|
shouldTestNextSiblings = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return compileRules(rules, options, finalContext);
|
||
|
|
})
|
||
|
|
.reduce(reduceRules, boolbase_1.falseFunc);
|
||
|
|
query.shouldTestNextSiblings = shouldTestNextSiblings;
|
||
|
|
return query;
|
||
|
|
}
|
||
|
|
exports.compileToken = compileToken;
|
||
|
|
function compileRules(rules, options, context) {
|
||
|
|
var _a;
|
||
|
|
return rules.reduce(function (previous, rule) {
|
||
|
|
return previous === boolbase_1.falseFunc
|
||
|
|
? boolbase_1.falseFunc
|
||
|
|
: (0, general_1.compileGeneralSelector)(previous, rule, options, context, compileToken);
|
||
|
|
}, (_a = options.rootFunc) !== null && _a !== void 0 ? _a : boolbase_1.trueFunc);
|
||
|
|
}
|
||
|
|
function reduceRules(a, b) {
|
||
|
|
if (b === boolbase_1.falseFunc || a === boolbase_1.trueFunc) {
|
||
|
|
return a;
|
||
|
|
}
|
||
|
|
if (a === boolbase_1.falseFunc || b === boolbase_1.trueFunc) {
|
||
|
|
return b;
|
||
|
|
}
|
||
|
|
return function combine(elem) {
|
||
|
|
return a(elem) || b(elem);
|
||
|
|
};
|
||
|
|
}
|