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import { Stylesheet, TextDocument } from 'vscode-css-languageservice';
import { Position } from 'vscode-languageserver';
import { getLanguageService } from './service';
import { Document, DocumentMapper, ReadableDocument, TagInformation } from '../../core/documents/index';
export interface CSSDocumentBase extends DocumentMapper, TextDocument {
languageId: string;
stylesheet: Stylesheet;
}
export class CSSDocument extends ReadableDocument implements DocumentMapper {
private styleInfo: Pick<TagInformation, 'attributes' | 'start' | 'end'>;
readonly version = this.parent.version;
public stylesheet: Stylesheet;
public languageId: string;
constructor(private parent: Document) {
super();
if (this.parent.styleInfo) {
this.styleInfo = this.parent.styleInfo;
} else {
this.styleInfo = {
attributes: {},
start: -1,
end: -1,
};
}
this.languageId = this.language;
this.stylesheet = getLanguageService(this.language).parseStylesheet(this);
}
/**
* Get the fragment position relative to the parent
* @param pos Position in fragment
*/
getOriginalPosition(pos: Position): Position {
const parentOffset = this.styleInfo.start + this.offsetAt(pos);
return this.parent.positionAt(parentOffset);
}
/**
* Get the position relative to the start of the fragment
* @param pos Position in parent
*/
getGeneratedPosition(pos: Position): Position {
const fragmentOffset = this.parent.offsetAt(pos) - this.styleInfo.start;
return this.positionAt(fragmentOffset);
}
/**
* Returns true if the given parent position is inside of this fragment
* @param pos Position in parent
*/
isInGenerated(pos: Position): boolean {
const offset = this.parent.offsetAt(pos);
return offset >= this.styleInfo.start && offset <= this.styleInfo.end;
}
/**
* Get the fragment text from the parent
*/
getText(): string {
return this.parent.getText().slice(this.styleInfo.start, this.styleInfo.end);
}
/**
* Returns the length of the fragment as calculated from the start and end positon
*/
getTextLength(): number {
return this.styleInfo.end - this.styleInfo.start;
}
/**
* Return the parent file path
*/
getFilePath(): string | null {
return this.parent.getFilePath();
}
getURL() {
return this.parent.getURL();
}
getAttributes() {
return this.styleInfo.attributes;
}
private get language() {
const attrs = this.getAttributes();
return attrs.lang || attrs.type || 'css';
}
}
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