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-rw-r--r--node_modules/svgo/lib/style.js336
1 files changed, 0 insertions, 336 deletions
diff --git a/node_modules/svgo/lib/style.js b/node_modules/svgo/lib/style.js
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--- a/node_modules/svgo/lib/style.js
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@@ -1,336 +0,0 @@
-'use strict';
-
-/**
- * @typedef {import('css-tree').Rule} CsstreeRule
- * @typedef {import('./types').Specificity} Specificity
- * @typedef {import('./types').Stylesheet} Stylesheet
- * @typedef {import('./types').StylesheetRule} StylesheetRule
- * @typedef {import('./types').StylesheetDeclaration} StylesheetDeclaration
- * @typedef {import('./types').ComputedStyles} ComputedStyles
- * @typedef {import('./types').XastRoot} XastRoot
- * @typedef {import('./types').XastElement} XastElement
- * @typedef {import('./types').XastParent} XastParent
- * @typedef {import('./types').XastChild} XastChild
- */
-
-const csstree = require('css-tree');
-const csswhat = require('css-what');
-const {
- syntax: { specificity },
-} = require('csso');
-const { visit, matches } = require('./xast.js');
-const {
- attrsGroups,
- inheritableAttrs,
- presentationNonInheritableGroupAttrs,
-} = require('../plugins/_collections.js');
-
-// @ts-ignore not defined in @types/csstree
-const csstreeWalkSkip = csstree.walk.skip;
-
-/**
- * @type {(ruleNode: CsstreeRule, dynamic: boolean) => StylesheetRule[]}
- */
-const parseRule = (ruleNode, dynamic) => {
- /**
- * @type {StylesheetDeclaration[]}
- */
- const declarations = [];
- // collect declarations
- ruleNode.block.children.forEach((cssNode) => {
- if (cssNode.type === 'Declaration') {
- declarations.push({
- name: cssNode.property,
- value: csstree.generate(cssNode.value),
- important: cssNode.important === true,
- });
- }
- });
-
- /** @type {StylesheetRule[]} */
- const rules = [];
- csstree.walk(ruleNode.prelude, (node) => {
- if (node.type === 'Selector') {
- const newNode = csstree.clone(node);
- let hasPseudoClasses = false;
- csstree.walk(newNode, (pseudoClassNode, item, list) => {
- if (pseudoClassNode.type === 'PseudoClassSelector') {
- hasPseudoClasses = true;
- list.remove(item);
- }
- });
- rules.push({
- specificity: specificity(node),
- dynamic: hasPseudoClasses || dynamic,
- // compute specificity from original node to consider pseudo classes
- selector: csstree.generate(newNode),
- declarations,
- });
- }
- });
-
- return rules;
-};
-
-/**
- * @type {(css: string, dynamic: boolean) => StylesheetRule[]}
- */
-const parseStylesheet = (css, dynamic) => {
- /** @type {StylesheetRule[]} */
- const rules = [];
- const ast = csstree.parse(css, {
- parseValue: false,
- parseAtrulePrelude: false,
- });
- csstree.walk(ast, (cssNode) => {
- if (cssNode.type === 'Rule') {
- rules.push(...parseRule(cssNode, dynamic || false));
- return csstreeWalkSkip;
- }
- if (cssNode.type === 'Atrule') {
- if (
- cssNode.name === 'keyframes' ||
- cssNode.name === '-webkit-keyframes'
- ) {
- return csstreeWalkSkip;
- }
- csstree.walk(cssNode, (ruleNode) => {
- if (ruleNode.type === 'Rule') {
- rules.push(...parseRule(ruleNode, dynamic || true));
- return csstreeWalkSkip;
- }
- });
- return csstreeWalkSkip;
- }
- });
- return rules;
-};
-
-/**
- * @type {(css: string) => StylesheetDeclaration[]}
- */
-const parseStyleDeclarations = (css) => {
- /** @type {StylesheetDeclaration[]} */
- const declarations = [];
- const ast = csstree.parse(css, {
- context: 'declarationList',
- parseValue: false,
- });
- csstree.walk(ast, (cssNode) => {
- if (cssNode.type === 'Declaration') {
- declarations.push({
- name: cssNode.property,
- value: csstree.generate(cssNode.value),
- important: cssNode.important === true,
- });
- }
- });
- return declarations;
-};
-
-/**
- * @param {Stylesheet} stylesheet
- * @param {XastElement} node
- * @returns {ComputedStyles}
- */
-const computeOwnStyle = (stylesheet, node) => {
- /** @type {ComputedStyles} */
- const computedStyle = {};
- const importantStyles = new Map();
-
- // collect attributes
- for (const [name, value] of Object.entries(node.attributes)) {
- if (attrsGroups.presentation.has(name)) {
- computedStyle[name] = { type: 'static', inherited: false, value };
- importantStyles.set(name, false);
- }
- }
-
- // collect matching rules
- for (const { selector, declarations, dynamic } of stylesheet.rules) {
- if (matches(node, selector)) {
- for (const { name, value, important } of declarations) {
- const computed = computedStyle[name];
- if (computed && computed.type === 'dynamic') {
- continue;
- }
- if (dynamic) {
- computedStyle[name] = { type: 'dynamic', inherited: false };
- continue;
- }
- if (
- computed == null ||
- important === true ||
- importantStyles.get(name) === false
- ) {
- computedStyle[name] = { type: 'static', inherited: false, value };
- importantStyles.set(name, important);
- }
- }
- }
- }
-
- // collect inline styles
- const styleDeclarations =
- node.attributes.style == null
- ? []
- : parseStyleDeclarations(node.attributes.style);
- for (const { name, value, important } of styleDeclarations) {
- const computed = computedStyle[name];
- if (computed && computed.type === 'dynamic') {
- continue;
- }
- if (
- computed == null ||
- important === true ||
- importantStyles.get(name) === false
- ) {
- computedStyle[name] = { type: 'static', inherited: false, value };
- importantStyles.set(name, important);
- }
- }
-
- return computedStyle;
-};
-
-/**
- * Compares selector specificities.
- * Derived from https://github.com/keeganstreet/specificity/blob/8757133ddd2ed0163f120900047ff0f92760b536/specificity.js#L207
- *
- * @param {Specificity} a
- * @param {Specificity} b
- * @returns {number}
- */
-const compareSpecificity = (a, b) => {
- for (let i = 0; i < 4; i += 1) {
- if (a[i] < b[i]) {
- return -1;
- } else if (a[i] > b[i]) {
- return 1;
- }
- }
-
- return 0;
-};
-exports.compareSpecificity = compareSpecificity;
-
-/**
- * @type {(root: XastRoot) => Stylesheet}
- */
-const collectStylesheet = (root) => {
- /** @type {StylesheetRule[]} */
- const rules = [];
- /** @type {Map<XastElement, XastParent>} */
- const parents = new Map();
-
- visit(root, {
- element: {
- enter: (node, parentNode) => {
- parents.set(node, parentNode);
-
- if (node.name !== 'style') {
- return;
- }
-
- if (
- node.attributes.type == null ||
- node.attributes.type === '' ||
- node.attributes.type === 'text/css'
- ) {
- const dynamic =
- node.attributes.media != null && node.attributes.media !== 'all';
-
- for (const child of node.children) {
- if (child.type === 'text' || child.type === 'cdata') {
- rules.push(...parseStylesheet(child.value, dynamic));
- }
- }
- }
- },
- },
- });
- // sort by selectors specificity
- rules.sort((a, b) => compareSpecificity(a.specificity, b.specificity));
- return { rules, parents };
-};
-exports.collectStylesheet = collectStylesheet;
-
-/**
- * @param {Stylesheet} stylesheet
- * @param {XastElement} node
- * @returns {ComputedStyles}
- */
-const computeStyle = (stylesheet, node) => {
- const { parents } = stylesheet;
- const computedStyles = computeOwnStyle(stylesheet, node);
- let parent = parents.get(node);
- while (parent != null && parent.type !== 'root') {
- const inheritedStyles = computeOwnStyle(stylesheet, parent);
- for (const [name, computed] of Object.entries(inheritedStyles)) {
- if (
- computedStyles[name] == null &&
- inheritableAttrs.has(name) &&
- !presentationNonInheritableGroupAttrs.has(name)
- ) {
- computedStyles[name] = { ...computed, inherited: true };
- }
- }
- parent = parents.get(parent);
- }
- return computedStyles;
-};
-exports.computeStyle = computeStyle;
-
-/**
- * Determines if the CSS selector includes or traverses the given attribute.
- *
- * Classes and IDs are generated as attribute selectors, so you can check for
- * if a `.class` or `#id` is included by passing `name=class` or `name=id`
- * respectively.
- *
- * @param {csstree.ListItem<csstree.CssNode>|string} selector
- * @param {string} name
- * @param {?string} value
- * @param {boolean} traversed
- * @returns {boolean}
- */
-const includesAttrSelector = (
- selector,
- name,
- value = null,
- traversed = false,
-) => {
- const selectors =
- typeof selector === 'string'
- ? csswhat.parse(selector)
- : csswhat.parse(csstree.generate(selector.data));
-
- for (const subselector of selectors) {
- const hasAttrSelector = subselector.some((segment, index) => {
- if (traversed) {
- if (index === subselector.length - 1) {
- return false;
- }
-
- const isNextTraversal = csswhat.isTraversal(subselector[index + 1]);
-
- if (!isNextTraversal) {
- return false;
- }
- }
-
- if (segment.type !== 'attribute' || segment.name !== name) {
- return false;
- }
-
- return value == null ? true : segment.value === value;
- });
-
- if (hasAttrSelector) {
- return true;
- }
- }
-
- return false;
-};
-exports.includesAttrSelector = includesAttrSelector;
generated by cgit v1.2.3 (git 2.25.1) at 2026-11-01 21:54:49 +0000