/
addTextSegment.ts
48 lines (41 loc) · 1.49 KB
/
addTextSegment.ts
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import { addDecorators } from './addDecorators';
import { addSegment } from './addSegment';
import { createText } from '../creators/createText';
import { ensureParagraph } from './ensureParagraph';
import { hasSpacesOnly } from './hasSpacesOnly';
import { isWhiteSpacePreserved } from '../../domUtils/isWhiteSpacePreserved';
import type {
ContentModelBlockGroup,
ContentModelText,
DomToModelContext,
} from 'roosterjs-content-model-types';
/**
* Add a new text segment to current paragraph
* @param group Current BlockGroup that the paragraph belong to
* @param text Text content of the text segment
* @param context Current DOM to Model context
* @returns A new Text segment, or undefined if the input text is empty
*/
export function addTextSegment(
group: ContentModelBlockGroup,
text: string,
context: DomToModelContext
): ContentModelText | undefined {
let textModel: ContentModelText | undefined;
if (text) {
const paragraph = ensureParagraph(group, context.blockFormat);
if (
!hasSpacesOnly(text) ||
(paragraph?.segments.length ?? 0) > 0 ||
isWhiteSpacePreserved(paragraph?.format.whiteSpace)
) {
textModel = createText(text, context.segmentFormat);
if (context.isInSelection) {
textModel.isSelected = true;
}
addDecorators(textModel, context);
addSegment(group, textModel, context.blockFormat);
}
}
return textModel;
}