devexpress-richedit/lib/common/selection/input-position.js

DevExpress Rich Text Editor is an advanced word-processing tool designed for working with rich text documents.

import { Section } from '../model/section/section';
import { SectionPropertyDescriptor } from '../model/section/section-property-descriptor';
import { InputPositionBase } from './input-position-base';
import { SearchUtils } from '@devexpress/utils/lib/utils/search';
export class InputPosition extends InputPositionBase {
    constructor(selection) {
        super();
        this.selection = selection;
        this.setIntervals(this.selection.getState().intervalsInfo);
        this.reset();
    }
    reset() {
        this.setIntervals(this.selection.getState().intervalsInfo);
        this.resetReturnValues();
    }
    resetSectionMergedProperties() {
        this.mergedSectionPropertiesRaw = null;
        this.mergedSectionPropertiesFull = null;
    }
    getMergedSectionPropertiesRaw() {
        if (!this.mergedSectionPropertiesRaw) {
            let sectionIndex;
            let intervalEndPosition;
            const sections = this.model.sections;
            const pageIndex = this.selection.pageIndex;
            if (pageIndex < 0) {
                const interval = this.intervalsInfo.interval;
                const intervalStartPosition = interval.start;
                intervalEndPosition = interval.end;
                sectionIndex = SearchUtils.normedInterpolationIndexOf(sections, (s) => s.startLogPosition.value, intervalStartPosition);
            }
            else {
                const layoutPage = this.selection.layout.pages[pageIndex];
                sectionIndex = Section.getPageSectionIndex(layoutPage, sections);
                intervalEndPosition = layoutPage.getEndPosition();
            }
            this.mergedSectionPropertiesRaw = sections[sectionIndex++].sectionProperties.clone();
            for (let section; (section = sections[sectionIndex]) && (section.startLogPosition.value < intervalEndPosition); sectionIndex++)
                InputPositionBase.mergePropertiesRaw(this.mergedSectionPropertiesRaw, section.sectionProperties, SectionPropertyDescriptor.ALL_FIELDS);
        }
        return this.mergedSectionPropertiesRaw;
    }
    getMergedSectionPropertiesFull() {
        if (!this.mergedSectionPropertiesFull)
            this.mergedSectionPropertiesFull = InputPositionBase.mergePropertiesFull(this.getMergedSectionPropertiesRaw(), SectionPropertyDescriptor.ALL_FIELDS);
        return this.mergedSectionPropertiesFull;
    }
    resetReturnValues() {
        super.resetReturnValues();
        this.mergedSectionPropertiesRaw = null;
        this.mergedSectionPropertiesFull = null;
    }
}