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Also compare other attributes for md preview updates

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Fixes #136816
This commit is contained in:
Matt Bierner
2021-11-10 14:13:23 -08:00
parent 84eca12f90
commit 71f615b105
1 changed files with 18 additions and 0 deletions
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18
extensions/markdown-language-features/preview-src/index.ts
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@@ -134,6 +134,7 @@ window.addEventListener('message', async event => {
root.replaceWith(newContent.querySelector('.markdown-body')!);
documentResource = event.data.source;
} else {
// Compare two elements but skip `data-line`
const areEqual = (a: Element, b: Element): boolean => {
if (a.isEqualNode(b)) {
return true;
@@ -143,6 +144,23 @@ window.addEventListener('message', async event => {
return false;
}
const aAttrs = a.attributes;
const bAttrs = b.attributes;
if (aAttrs.length !== bAttrs.length) {
return false;
}
for (let i = 0; i < aAttrs.length; ++i) {
const aAttr = aAttrs[i];
const bAttr = bAttrs[i];
if (aAttr.name !== bAttr.name) {
return false;
}
if (aAttr.value !== bAttr.value && aAttr.name !== 'data-line') {
return false;
}
}
const aChildren = Array.from(a.children);
const bChildren = Array.from(b.children);