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Release 3.1.0 #4

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Merged
zm-develops merged 1 commit into from
Dec 18, 2025
Merged

Release 3.1.0 #4

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20 changes: 20 additions & 0 deletions src/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -686,6 +686,11 @@ function filterAuthorInlineStyles(context, element) {
: null;
const defaultStyle = getDefaultStyle(context, element);

// Remove property declarations that are duplicated from a parent element.
if (parentComputedStyle) {
removeDuplicateCustomProperties(styles, parentComputedStyle);
}

// Splice explicit inline style declarations that match default and parent values.
tokenizeCssTextDeclarations(styles.inline.cssText)
.map(getCssTextProperty)
Expand Down Expand Up @@ -1022,6 +1027,21 @@ function destroyElementHierarchy(element) {
}
}

/**
* Removes duplicate CSS properties from the parent element's style.
*
* @param {Styles} styles Styles object for the element.
* @param {CSSStyleDeclaration} parentStyle Parent element's style declaration.
*/
function removeDuplicateCustomProperties(styles, parentStyle) {
for (const name of parentStyle) {
const parentValue = parentStyle.getPropertyValue(name);
if (name.startsWith('--') && styles.inline.getPropertyValue(name) === parentValue) {
styles.inline.removeProperty(name);
}
}
}

/**
* Tokenize inline CSS styling declarations.
*
Expand Down