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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 | 1x 1x 25x 25x 3x 44x 22x 22x 22x 22x 22x 22x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 10x 10x 13x 10x 10x 4x 2x 2x 6x 3x 3x 6x 4x 2x 2x 10x 13x 13x 8x 5x 5x 5x 5x 2x 13x 13x | import {
getSelectedSegmentsAndParagraphs,
isBlockEntityContainer,
isEntityDelimiter,
isNodeOfType,
} from 'roosterjs-content-model-dom';
import type {
ContentModelEntity,
IEditor,
ReadonlyContentModelBlockGroup,
ReadonlyContentModelParagraph,
ReadonlyContentModelSegment,
} from 'roosterjs-content-model-types';
/**
* @internal
*/
export function adjustSelectionAroundEntity(
editor: IEditor,
key: 'ArrowLeft' | 'ArrowRight',
shiftKey: boolean
) {
const selection = editor.isDisposed() ? null : editor.getDOMSelection();
if (!selection || selection.type != 'range') {
return;
}
const { range, isReverted } = selection;
const anchorNode = isReverted ? range.startContainer : range.endContainer;
const offset = isReverted ? range.startOffset : range.endOffset;
const delimiter = isNodeOfType(anchorNode, 'ELEMENT_NODE')
? anchorNode
: anchorNode.parentElement;
const isRtl =
delimiter &&
editor.getDocument().defaultView?.getComputedStyle(delimiter).direction == 'rtl';
const movingBefore = (key == 'ArrowLeft') != !!isRtl;
if (
delimiter &&
((isEntityDelimiter(delimiter, !movingBefore) &&
((movingBefore && offset == 0) || (!movingBefore && offset == 1))) ||
isBlockEntityContainer(delimiter))
) {
editor.formatContentModel(model => {
const allSel = getSelectedSegmentsAndParagraphs(
model,
false /*includingFormatHolder*/,
true /*includingEntity*/
);
const sel = allSel[isReverted ? 0 : allSel.length - 1];
const index = sel?.[1]?.segments.indexOf(sel[0]) ?? -1;
Eif (sel && sel[1] && index >= 0) {
const [segment, paragraph, path] = sel;
const isShrinking = shiftKey && !range.collapsed && movingBefore != !!isReverted;
const entitySegment = isShrinking
? segment
: paragraph.segments[movingBefore ? index - 1 : index + 1];
const pairedDelimiter = findPairedDelimiter(
entitySegment,
path,
paragraph,
movingBefore
);
if (pairedDelimiter) {
const newRange = getNewRange(
range,
isShrinking,
movingBefore,
pairedDelimiter,
shiftKey
);
editor.setDOMSelection({
type: 'range',
range: newRange,
isReverted: newRange.collapsed ? false : isReverted,
});
}
}
return false;
});
}
}
function getNewRange(
originalRange: Range,
isShrinking: boolean,
movingBefore: boolean,
pairedDelimiter: HTMLElement,
shiftKey: boolean
) {
const newRange = originalRange.cloneRange();
if (isShrinking) {
if (movingBefore) {
newRange.setEndBefore(pairedDelimiter);
} else {
newRange.setStartAfter(pairedDelimiter);
}
} else {
if (movingBefore) {
newRange.setStartBefore(pairedDelimiter);
} else {
newRange.setEndAfter(pairedDelimiter);
}
if (!shiftKey) {
if (movingBefore) {
newRange.setEndBefore(pairedDelimiter);
} else {
newRange.setStartAfter(pairedDelimiter);
}
}
}
return newRange;
}
function findPairedDelimiter(
entitySegment: ReadonlyContentModelSegment,
path: ReadonlyContentModelBlockGroup[],
paragraph: ReadonlyContentModelParagraph,
movingBefore: boolean
) {
let entity: ContentModelEntity | null = null;
if (entitySegment?.segmentType == 'Entity') {
// Inline entity
entity = entitySegment;
} else {
// Block entity
const blocks = path[0].blocks;
const paraIndex = blocks.indexOf(paragraph);
const entityBlock =
paraIndex >= 0 ? blocks[movingBefore ? paraIndex - 1 : paraIndex + 1] : null;
if (entityBlock?.blockType == 'Entity') {
entity = entityBlock;
}
}
const pairedDelimiter = entity
? movingBefore
? entity.wrapper.previousElementSibling
: entity.wrapper.nextElementSibling
: null;
return isNodeOfType(pairedDelimiter, 'ELEMENT_NODE') &&
isEntityDelimiter(pairedDelimiter, movingBefore)
? pairedDelimiter
: null;
}
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