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https://github.com/codex-team/editor.js
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c8993332e3
* fix(onchange): callback will be fired when the whole text is removed in a block * whops
36 lines
1.2 KiB
TypeScript
36 lines
1.2 KiB
TypeScript
/**
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* Check if passed mutation belongs to a passed element
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*
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* @param mutationRecord - mutation to check
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* @param element - element that is expected to contain mutation
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*/
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export function isMutationBelongsToElement(mutationRecord: MutationRecord, element: Element): boolean {
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const { type, target, addedNodes, removedNodes } = mutationRecord;
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/**
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* In case of removing the whole text in element, mutation type will be 'childList',
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* 'removedNodes' will contain text node that is not existed anymore, so we can't check it with 'contains' method
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* But Target will be the element itself, so we can detect it.
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*/
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if (target === element) {
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return true;
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}
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/**
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* Check typing and attributes changes
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*/
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if (['characterData', 'attributes'].includes(type)) {
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const targetElement = target.nodeType === Node.TEXT_NODE ? target.parentNode : target;
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return element.contains(targetElement);
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}
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/**
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* Check new/removed nodes
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*/
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const addedNodesBelongsToBlock = Array.from(addedNodes).some(node => element.contains(node));
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const removedNodesBelongsToBlock = Array.from(removedNodes).some(node => element.contains(node));
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return addedNodesBelongsToBlock || removedNodesBelongsToBlock;
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}
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