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January 14, 2018 10:55
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Tree Walker
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| /* Replace all text nodes which has parent div element to wrapped by p tag. | |
| Example | |
| Before | |
| <body> | |
| <p>Boom</p> | |
| text | |
| <div>Bam</div> | |
| </body> | |
| After | |
| <body> | |
| <p>Boom</p> | |
| text | |
| <div><p>Bam</p></div> | |
| </body> | |
| */ | |
| export default (document) => { | |
| const filter = node => | |
| node.parentElement.tagName === 'DIV' ? NodeFilter.FILTER_ACCEPT : NodeFilter.FILTER_SKIP; | |
| const walker = document.createTreeWalker(document.body, NodeFilter.SHOW_TEXT, filter); | |
| while (walker.nextNode()) { | |
| const node = walker.currentNode(); | |
| const pEl = document.createElement('p'); | |
| node.replaceWith(pEl); | |
| pEl.append(node); | |
| } | |
| } |
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