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Copy pathjsxImagesToChildren.js
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136 lines (118 loc) · 3.32 KB
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const visit = require('unist-util-visit');
const {
isMdxElement,
parseImport,
findAttribute,
removeAttribute,
} = require('../../codemods/utils/mdxast');
const { mdxBlockElement } = require('../../codemods/utils/mdxast-builder');
const toMDAST = require('remark-parse');
const remarkMdx = require('remark-mdx');
const remarkMdxjs = require('remark-mdxjs');
const unified = require('unified');
const { set } = require('lodash');
const removeParagraphs = () => (tree) => {
visit(tree, 'paragraph', (node, idx, parent) => {
parent.children.splice(idx, 1, ...node.children);
});
};
const findAttributeNode = (attrName, node) => {
if (!node.attributes) {
return null;
}
const attribute = node.attributes.find((attr) => attr.name === attrName);
return attribute;
};
const isAttributeMdxValueExpression = (attrName, node) => {
const name = findAttributeNode(attrName, node);
return name && name.value.type === 'mdxValueExpression';
};
const capitalize = (s) => {
if (typeof s !== 'string') return '';
return s.charAt(0).toUpperCase() + s.slice(1);
};
const jsxPropToElement = (attrName, node) => {
const {
value: { value: jsx },
} = findAttributeNode(attrName, node);
const root = attributeProcessor.parse(jsx);
const { children } = attributeProcessor.runSync(root);
const element = mdxBlockElement(
`${node.name}${capitalize(attrName)}`,
[],
children
);
return element;
};
const attributeProcessor = unified()
.use(toMDAST)
.use(remarkMdx)
.use(remarkMdxjs)
.use(removeParagraphs);
const jsxImagesToChildren = () => (tree) => {
const imageImports = {};
visit(
tree,
(node) => node.type === 'import',
(node) => {
const { expression, path } = parseImport(node);
imageImports[expression] = path;
}
);
visit(
tree,
(node) => {
if (isMdxElement('Collapser', node)) {
return isAttributeMdxValueExpression('title', node);
}
},
(node) => {
const collapserTitle = jsxPropToElement('title', node);
node.children.unshift(collapserTitle);
removeAttribute('title', node);
}
);
visit(
tree,
(node) => {
if (isMdxElement('TechTile', node)) {
return isAttributeMdxValueExpression('icon', node);
}
},
(node) => {
const techTileIcon = jsxPropToElement('icon', node);
node.children.unshift(techTileIcon);
removeAttribute('icon', node);
}
);
visit(
tree,
(node) => isMdxElement('img', node) && findAttribute('src', node),
(node) => {
const src = findAttribute('src', node);
node.type = 'image';
node.url =
src.type === 'mdxValueExpression' ? imageImports[src.value] : src;
set(node, 'title', findAttribute('title', node));
set(node, 'alt', findAttribute('alt', node));
const style = findAttribute('style', node);
style &&
set(
node,
'data.style',
style.value
.replace(/[{}]/g, '')
.replaceAll(`'`, '')
.replaceAll(`"`, '')
.replaceAll(',', ';')
.trim('')
);
const className = findAttribute('class', node);
className && set(node, 'data.className', className);
delete node.name;
delete node.attributes;
delete node.children;
}
);
};
module.exports = jsxImagesToChildren;