Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 | 1x 1x 1x 24x 24x 24x 8x 4x 4x 4x 4x 1x 3x 3x 24x | import { isNodeOfType } from 'roosterjs-content-model-dom';
import type { DOMInsertPoint } from 'roosterjs-content-model-types';
/**
* HTML void elements
* Per https://www.w3.org/TR/html/syntax.html#syntax-elements, cannot have child nodes
* This regex is used when we move focus to very begin of editor. We should avoid putting focus inside
* void elements so users don't accidentally create child nodes in them
*/
const HTML_VOID_ELEMENTS = [
'AREA',
'BASE',
'BR',
'COL',
'COMMAND',
'EMBED',
'HR',
'IMG',
'INPUT',
'KEYGEN',
'LINK',
'META',
'PARAM',
'SOURCE',
'TRACK',
'WBR',
];
/**
* @internal
*/
export function normalizePos(node: Node, offset: number): DOMInsertPoint {
const len = isNodeOfType(node, 'TEXT_NODE')
? node.nodeValue?.length ?? 0
: node.childNodes.length;
offset = Math.max(Math.min(offset, len), 0);
while (node?.lastChild) {
if (offset >= node.childNodes.length) {
node = node.lastChild;
offset = isNodeOfType(node, 'TEXT_NODE')
? node.nodeValue?.length ?? 0
: node.childNodes.length;
} else {
const nextNode = node.childNodes[offset];
if (
isNodeOfType(nextNode, 'ELEMENT_NODE') &&
HTML_VOID_ELEMENTS.indexOf(nextNode.tagName) >= 0
) {
break;
} else {
node = node.childNodes[offset];
offset = 0;
}
}
}
return { node, offset };
}
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