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 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 | 1x 12030x 578x 12030x 157x 306x 11873x 316x 12030x 12030x 1x 985x 985x 985x 985x 1004x 1004x 999x 999x 985x 1x 589x 589x 589x 397x 589x 12030x 11873x | import type {
MutableType,
ReadonlyContentModelBlock,
ReadonlyContentModelBlockGroup,
ReadonlyContentModelListItem,
ReadonlyContentModelParagraph,
ReadonlyContentModelSegment,
ReadonlyContentModelTable,
ShallowMutableContentModelParagraph,
ShallowMutableContentModelSegment,
} from 'roosterjs-content-model-types';
/**
* Convert a readonly block to mutable block, clear cached element if exist
* @param block The block to convert from
* @returns The same block object of its related mutable type
*/
export function mutateBlock<T extends ReadonlyContentModelBlockGroup | ReadonlyContentModelBlock>(
block: T
): MutableType<T> {
if (block.cachedElement) {
delete block.cachedElement;
}
if (isTable(block)) {
block.rows.forEach(row => {
delete row.cachedElement;
});
} else if (isListItem(block)) {
block.levels.forEach(level => delete level.cachedElement);
}
const result = (block as unknown) as MutableType<T>;
return result;
}
/**
* Convert segments of a readonly paragraph to be mutable.
* Segments that are not belong to the given paragraph will be skipped
* @param paragraph The readonly paragraph to convert from
* @param segments The segments to convert from
*/
export function mutateSegments(
paragraph: ReadonlyContentModelParagraph,
segments: ReadonlyContentModelSegment[]
): [ShallowMutableContentModelParagraph, ShallowMutableContentModelSegment[], number[]] {
const mutablePara = mutateBlock(paragraph);
const result: [
ShallowMutableContentModelParagraph,
ShallowMutableContentModelSegment[],
number[]
] = [mutablePara, [], []];
Eif (segments) {
segments.forEach(segment => {
const index = paragraph.segments.indexOf(segment);
if (index >= 0) {
result[1].push(mutablePara.segments[index]);
result[2].push(index);
}
});
}
return result;
}
/**
* Convert a readonly segment to be mutable, together with its owner paragraph
* If the segment does not belong to the given paragraph, return null for the segment
* @param paragraph The readonly paragraph to convert from
* @param segment The segment to convert from
*/
export function mutateSegment<T extends ReadonlyContentModelSegment>(
paragraph: ReadonlyContentModelParagraph,
segment: T,
callback?: (
segment: MutableType<T>,
paragraph: ShallowMutableContentModelParagraph,
index: number
) => void
): [ShallowMutableContentModelParagraph, MutableType<T> | null, number] {
const [mutablePara, mutableSegments, indexes] = mutateSegments(paragraph, [segment]);
const mutableSegment =
(mutableSegments[0] as ReadonlyContentModelSegment) == segment
? (mutableSegments[0] as MutableType<T>)
: null;
if (callback && mutableSegment) {
callback(mutableSegments[0] as MutableType<T>, mutablePara, indexes[0]);
}
return [mutablePara, mutableSegment, indexes[0] ?? -1];
}
function isTable(
obj: ReadonlyContentModelBlockGroup | ReadonlyContentModelBlock
): obj is ReadonlyContentModelTable {
return (obj as ReadonlyContentModelTable).blockType == 'Table';
}
function isListItem(
obj: ReadonlyContentModelBlockGroup | ReadonlyContentModelBlock
): obj is ReadonlyContentModelListItem {
return (obj as ReadonlyContentModelListItem).blockGroupType == 'ListItem';
}
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