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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 | 1x 1x 35x 35x 35x 35x 35x 35x 35x 35x 35x 33x 33x 33x 33x 8x 3x 5x 5x 5x 25x 35x 35x 35x 8x 27x 12x 12x 12x 12x 3x 1x 2x 2x 2x 9x 27x 17x 10x 10x 45x 45x 45x 12x 27x 27x 3x 3x 33x 106x 106x 8x 8x 45x 7x 7x 7x 7x | import {
createText,
isPunctuation,
isSpace,
iterateSelections,
mutateBlock,
} from 'roosterjs-content-model-dom';
import type {
ContentModelText,
ReadonlyContentModelDocument,
ShallowMutableContentModelParagraph,
ShallowMutableContentModelSegment,
} from 'roosterjs-content-model-types';
/**
* Return specific word segment where the selection marker is located
* @param model The model document
* @param marker The selection marker
* @returns An array of segments that form the word where the selection marker is located
*/
export function adjustWordSelection(
model: ReadonlyContentModelDocument,
marker: ShallowMutableContentModelSegment
): ShallowMutableContentModelSegment[] {
let markerBlock: ShallowMutableContentModelParagraph | undefined;
iterateSelections(model, (_, __, block, segments) => {
//Find the block with the selection marker
Eif (block?.blockType == 'Paragraph' && segments?.length == 1 && segments[0] == marker) {
markerBlock = mutateBlock(block);
}
return true;
});
const tempSegments = markerBlock ? [...markerBlock.segments] : undefined;
Eif (tempSegments && markerBlock) {
const segments: ShallowMutableContentModelSegment[] = [];
let markerSelectionIndex = tempSegments.indexOf(marker);
for (let i = markerSelectionIndex - 1; i >= 0; i--) {
const currentSegment = tempSegments[i];
Eif (currentSegment.segmentType == 'Text') {
const found = findDelimiter(currentSegment, false /*moveRightward*/);
if (found > -1) {
if (found == currentSegment.text.length) {
break;
}
splitTextSegment(tempSegments, currentSegment, i, found);
segments.push(tempSegments[i + 1]);
break;
} else {
segments.push(tempSegments[i]);
}
} else {
break;
}
}
markerSelectionIndex = tempSegments.indexOf(marker);
segments.push(marker);
// Marker is at start of word
if (segments.length <= 1) {
return segments;
}
for (let i = markerSelectionIndex + 1; i < tempSegments.length; i++) {
const currentSegment = tempSegments[i];
Eif (currentSegment.segmentType == 'Text') {
const found = findDelimiter(currentSegment, true /*moveRightward*/);
if (found > -1) {
if (found == 0) {
break;
}
splitTextSegment(tempSegments, currentSegment, i, found);
segments.push(tempSegments[i]);
break;
} else {
segments.push(tempSegments[i]);
}
} else {
break;
}
}
// Marker is at end of word
if (segments[segments.length - 1] == marker) {
return [marker];
}
markerBlock.segments = tempSegments;
return segments;
} else {
return [marker];
}
}
/*
// These are unicode characters mostly from the Category Space Separator (Zs)
https://unicode.org/Public/UNIDATA/Scripts.txt
\u2000 = EN QUAD
\u2009 = THIN SPACE
\u200a = HAIR SPACE
â\u200b = ZERO WIDTH SPACE
â\u202f = NARROW NO-BREAK SPACE
\u205fâ = MEDIUM MATHEMATICAL SPACE
\u3000 = IDEOGRAPHIC SPACE
*/
function findDelimiter(segment: ContentModelText, moveRightward: boolean): number {
const word = segment.text;
let offset = -1;
if (moveRightward) {
for (let i = 0; i < word.length; i++) {
const char = word[i];
if (isPunctuation(char) || isSpace(char)) {
offset = i;
break;
}
}
} else {
for (let i = word.length - 1; i >= 0; i--) {
const char = word[i];
if (isPunctuation(char) || isSpace(char)) {
offset = i + 1;
break;
}
}
}
return offset;
}
function splitTextSegment(
segments: ShallowMutableContentModelSegment[],
textSegment: Readonly<ContentModelText>,
index: number,
found: number
) {
const text = textSegment.text;
const newSegmentLeft = createText(
text.substring(0, found),
textSegment.format,
textSegment.link,
textSegment.code
);
const newSegmentRight = createText(
text.substring(found, text.length),
textSegment.format,
textSegment.link,
textSegment.code
);
segments.splice(index, 1, newSegmentLeft, newSegmentRight);
}
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