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 | 1x 4146x 3108x 190x 838x 5x 6x 1x 920x 97x 810x 13x 1x 2062x 1523x 539x 1x 116x 48x 68x 62x 6x 6x 6x 68x 116x | import type {
ReadonlyContentModelBlock,
ReadonlyContentModelBlockGroup,
ReadonlyContentModelSegment,
} from 'roosterjs-content-model-types';
/**
* @internal
*/
export function isBlockEmpty(block: ReadonlyContentModelBlock): boolean {
switch (block.blockType) {
case 'Paragraph':
return block.segments.length == 0;
case 'Table':
return block.rows.every(row => row.cells.length == 0);
case 'BlockGroup':
return isBlockGroupEmpty(block);
case 'Entity':
return false;
default:
return false;
}
}
/**
* @internal
*/
export function isBlockGroupEmpty(group: ReadonlyContentModelBlockGroup): boolean {
switch (group.blockGroupType) {
case 'FormatContainer':
// Format Container of DIV is a container for style, so we always treat it as not empty
return group.tagName == 'div' ? false : group.blocks.every(isBlockEmpty);
case 'ListItem':
return group.blocks.every(isBlockEmpty);
case 'Document':
case 'General':
case 'TableCell':
return false;
default:
return true;
}
}
/**
* @internal
*/
export function isSegmentEmpty(
segment: ReadonlyContentModelSegment,
treatAnchorAsNotEmpty?: boolean
): boolean {
switch (segment.segmentType) {
case 'Text':
return !segment.text && (!treatAnchorAsNotEmpty || !segment.link?.format.name);
default:
return false;
}
}
/**
* Get whether the model is empty.
* @returns true if the model is empty.
*/
export function isEmpty(
model: ReadonlyContentModelBlock | ReadonlyContentModelBlockGroup | ReadonlyContentModelSegment
): boolean {
if (isBlockGroup(model)) {
return isBlockGroupEmpty(model);
} else if (isBlock(model)) {
return isBlockEmpty(model);
} else Eif (isSegment(model)) {
return isSegmentEmpty(model);
}
return false;
}
function isSegment(
model: ReadonlyContentModelBlock | ReadonlyContentModelBlockGroup | ReadonlyContentModelSegment
): model is ReadonlyContentModelSegment {
return typeof (<ReadonlyContentModelSegment>model).segmentType === 'string';
}
function isBlock(
model: ReadonlyContentModelBlock | ReadonlyContentModelBlockGroup | ReadonlyContentModelSegment
): model is ReadonlyContentModelBlock {
return typeof (<ReadonlyContentModelBlock>model).blockType === 'string';
}
function isBlockGroup(
model: ReadonlyContentModelBlock | ReadonlyContentModelBlockGroup | ReadonlyContentModelSegment
): model is ReadonlyContentModelBlockGroup {
return typeof (<ReadonlyContentModelBlockGroup>model).blockGroupType === 'string';
}
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