devexpress-richedit
Version:
DevExpress Rich Text Editor is an advanced word-processing tool designed for working with rich text documents.
60 lines (59 loc) • 2.07 kB
JavaScript
import { FixedInterval } from '@devexpress/utils/lib/intervals/fixed';
export class RunIterator {
currentRun = null;
currentChunk = null;
currentSection = null;
runs = [];
chunks = [];
sections = [];
currentRunIndex = 0;
currentChunkIndex = 0;
currentSectionIndex = 0;
indexForChunks = [];
indexForSections = [];
constructor(runs, chunks, sections, indexForChunks, indexForSections) {
this.runs = runs;
this.chunks = chunks;
this.sections = sections;
this.indexForChunks = indexForChunks;
this.indexForSections = indexForSections;
}
moveNext() {
this.currentRun = this.runs[this.currentRunIndex];
if (this.currentRun) {
this.currentChunk = this.chunks[this.currentChunkIndex];
this.currentSection = this.sections[this.currentSectionIndex];
if (this.currentRunIndex == this.indexForChunks[this.currentChunkIndex])
this.currentChunkIndex++;
if (this.currentRunIndex == this.indexForSections[this.currentSectionIndex])
this.currentSectionIndex++;
this.currentRunIndex++;
return true;
}
else {
this.currentChunk = undefined;
this.currentSection = undefined;
return false;
}
}
currentInterval() {
if (this.currentRun)
return new FixedInterval(this.currentChunk.startLogPosition.value + this.currentRun.startOffset, this.currentRun.getLength());
else
return new FixedInterval(this.chunks[0].startLogPosition.value + this.runs[0].startOffset, this.runs[0].getLength());
}
getFirstRun() {
return this.runs[0];
}
getLastRun() {
return this.runs[this.runs.length - 1];
}
getRunsCount() {
return this.runs.length;
}
reset() {
this.currentRunIndex = 0;
this.currentChunkIndex = 0;
this.currentSectionIndex = 0;
}
}