128 lines
4.7 KiB
JavaScript
128 lines
4.7 KiB
JavaScript
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports.default = exports.assign = void 0;
|
|
var _postcss = _interopRequireDefault(require("postcss"));
|
|
var _postcss_plugin = _interopRequireDefault(require("../../helpers/postcss_plugin"));
|
|
var _plugin = _interopRequireDefault(require("../../plugin"));
|
|
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
|
|
/** @module */
|
|
|
|
const uniqKeyChars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
|
|
const uniqKeyCharsLength = uniqKeyChars.length;
|
|
const generateScopeAttr = uniqKey => `data-marpit-scope-${uniqKey}`;
|
|
const generateUniqKey = (length = 8) => {
|
|
let ret = '';
|
|
for (let i = 0; i < length; i += 1) ret += uniqKeyChars[Math.floor(Math.random() * uniqKeyCharsLength)];
|
|
return ret;
|
|
};
|
|
const injectScopePostCSSplugin = (0, _postcss_plugin.default)('marpit-style-assign-postcss-inject-scope', (key, keyframeSet) => css => css.each(function inject(node) {
|
|
const {
|
|
type,
|
|
name
|
|
} = node;
|
|
if (type === 'atrule') {
|
|
if (name === 'keyframes' && node.params) {
|
|
keyframeSet.add(node.params);
|
|
node.params += `-${key}`;
|
|
} else if (name === 'media' || name === 'supports') {
|
|
node.each(inject);
|
|
}
|
|
} else if (type === 'rule') {
|
|
node.selectors = node.selectors.map(selector => {
|
|
const injectSelector = /^section(?![\w-])/.test(selector) ? selector.slice(7) : ` ${selector}`;
|
|
return `section[${generateScopeAttr(key)}]${injectSelector}`;
|
|
});
|
|
}
|
|
}));
|
|
const scopeKeyframesPostCSSPlugin = (0, _postcss_plugin.default)('marpit-style-assign-postcss-scope-keyframes', (key, keyframeSet) => css => {
|
|
if (keyframeSet.size === 0) return;
|
|
const keyframeMatcher = new RegExp(`\\b(${[...keyframeSet.values()].map(kf => kf.replace(/[.*+\-?^${}()|[\]\\]/g, '\\$&')).join('|')})(?!\\()\\b`);
|
|
css.walkDecls(/^animation(-name)?$/, decl => {
|
|
decl.value = decl.value.replace(keyframeMatcher, kf => `${kf}-${key}`);
|
|
});
|
|
});
|
|
|
|
/**
|
|
* Marpit style assign plugin.
|
|
*
|
|
* Assign style global directive and parsed styles to Marpit instance's
|
|
* `lastStyles' property.
|
|
*
|
|
* @function assign
|
|
* @param {MarkdownIt} md markdown-it instance.
|
|
*/
|
|
function _assign(md) {
|
|
const {
|
|
marpit
|
|
} = md;
|
|
md.core.ruler.after('marpit_slide', 'marpit_style_assign', state => {
|
|
if (state.inlineMode) return;
|
|
const directives = marpit.lastGlobalDirectives || {};
|
|
marpit.lastStyles = directives.style ? [directives.style] : [];
|
|
let current;
|
|
for (const token of state.tokens) {
|
|
if (token.meta && token.meta.marpitSlideElement === 1) {
|
|
current = token;
|
|
} else if (token.meta && token.meta.marpitSlideElement === -1) {
|
|
if (current.meta && current.meta.marpitStyleScoped) {
|
|
const {
|
|
key,
|
|
keyframeSet,
|
|
styles
|
|
} = current.meta.marpitStyleScoped;
|
|
|
|
// Rewrite keyframes name in animation decls
|
|
const processor = (0, _postcss.default)([scopeKeyframesPostCSSPlugin(key, keyframeSet)]);
|
|
current.meta.marpitStyleScoped.styles = styles.map(style => {
|
|
try {
|
|
return processor.process(style).css;
|
|
} catch {
|
|
return style;
|
|
}
|
|
});
|
|
|
|
// Assign scoped styles
|
|
marpit.lastStyles.push(...current.meta.marpitStyleScoped.styles);
|
|
}
|
|
current = undefined;
|
|
} else if (token.type === 'marpit_style') {
|
|
const {
|
|
content
|
|
} = token;
|
|
|
|
// Scoped style
|
|
const {
|
|
marpitStyleScoped
|
|
} = token.meta || {};
|
|
if (current && marpitStyleScoped) {
|
|
current.meta = current.meta || {};
|
|
current.meta.marpitStyleScoped = current.meta.marpitStyleScoped || {};
|
|
let {
|
|
key
|
|
} = current.meta.marpitStyleScoped;
|
|
if (!key) {
|
|
key = generateUniqKey();
|
|
current.meta.marpitStyleScoped.key = key;
|
|
current.attrSet(generateScopeAttr(key), '');
|
|
}
|
|
current.meta.marpitStyleScoped.styles = current.meta.marpitStyleScoped.styles || [];
|
|
current.meta.marpitStyleScoped.keyframeSet = current.meta.marpitStyleScoped.keyframeSet || new Set();
|
|
const processor = (0, _postcss.default)([injectScopePostCSSplugin(key, current.meta.marpitStyleScoped.keyframeSet)]);
|
|
try {
|
|
current.meta.marpitStyleScoped.styles.push(processor.process(content).css);
|
|
} catch {
|
|
// No ops
|
|
}
|
|
} else if (content) {
|
|
// Global style
|
|
marpit.lastStyles.push(content);
|
|
}
|
|
}
|
|
}
|
|
});
|
|
}
|
|
const assign = exports.assign = (0, _plugin.default)(_assign);
|
|
var _default = exports.default = assign; |