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| 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 1x 1x 1x 11x 11x 11x 1x 7x 7x 7x 2x 2x 5x 5x 1x 11x 11x 4x 11x 11x 11x 11x 1x 2x 2x 1x 1x 1x 9x 9x 1x 11x 1x 9x 1x 1x 11x | import { getParagraphMarker, setParagraphMarker } from 'roosterjs-content-model-dom';
import type {
ContentModelParagraph,
ContentModelParagraphCommon,
ParagraphIndexer,
ParagraphMap,
ReadonlyContentModelParagraph,
} from 'roosterjs-content-model-types';
interface ParagraphWithMarker extends ContentModelParagraphCommon {
_marker?: string;
}
/**
* @internal, used by test code only
*/
export interface ParagraphMapReset {
_reset(): void;
_getMap(): { [key: string]: ReadonlyContentModelParagraph };
}
const idPrefix = 'paragraph';
class ParagraphMapImpl implements ParagraphMap, ParagraphIndexer, ParagraphMapReset {
private static prefixNum = 0;
private nextId = 0;
private paragraphMap: { [key: string]: ReadonlyContentModelParagraph } = {};
constructor() {
ParagraphMapImpl.prefixNum++;
}
assignMarkerToModel(element: HTMLElement, paragraph: ContentModelParagraph): void {
const marker = getParagraphMarker(element);
const paragraphWithMarker = paragraph as ParagraphWithMarker;
if (marker) {
paragraphWithMarker._marker = marker;
this.paragraphMap[marker] = paragraph;
} else {
paragraphWithMarker._marker = this.generateId();
this.applyMarkerToDom(element, paragraph);
}
}
applyMarkerToDom(element: HTMLElement, paragraph: ContentModelParagraph): void {
const paragraphWithMarker = paragraph as ParagraphWithMarker;
if (!paragraphWithMarker._marker) {
paragraphWithMarker._marker = this.generateId();
}
const marker = paragraphWithMarker._marker;
Eif (marker) {
setParagraphMarker(element, marker);
this.paragraphMap[marker] = paragraph;
}
}
/**
* Get paragraph using a previously marked paragraph
* @param markedParagraph The previously marked paragraph to get
*/
getParagraphFromMarker(
markerParagraph: ReadonlyContentModelParagraph
): ReadonlyContentModelParagraph | null {
const marker = (markerParagraph as ParagraphWithMarker)._marker;
return marker ? this.paragraphMap[marker] || null : null;
}
clear() {
this.paragraphMap = {};
}
//#region For test code only
_reset() {
ParagraphMapImpl.prefixNum = 0;
this.nextId = 0;
}
_getMap() {
return this.paragraphMap;
}
//#endregion
private generateId() {
return `${idPrefix}_${ParagraphMapImpl.prefixNum}_${this.nextId++}`;
}
}
/**
* @internal
*/
export function createParagraphMap(): ParagraphMap & ParagraphIndexer {
return new ParagraphMapImpl();
}
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