codemirror-languageservice/dist/hover-tooltip.js

Integrate a Language Server Protocol compatible language service into CodeMirror

import { fromMarkupContent } from './markup-content.js';
import { getTextDocument } from './text-document.js';
/**
 * Create an LSP based hover tooltip provider.
 *
 * @param options
 *   Options to configure the hover tooltips.
 * @returns
 *   A CodeMirror hover tooltip source that uses LSP based hover information.
 */
export function createHoverTooltipSource(options) {
    return async (view, pos) => {
        const textDocument = getTextDocument(view.state);
        const info = await options.doHover(textDocument, textDocument.positionAt(pos));
        if (!info) {
            return null;
        }
        if (textDocument.version !== getTextDocument(view.state).version) {
            return null;
        }
        let start = pos;
        let end;
        const { contents, range } = info;
        if (range) {
            start = textDocument.offsetAt(range.start);
            end = textDocument.offsetAt(range.end);
        }
        const tooltipView = {
            dom: await fromMarkupContent(contents, document.createElement('div'), options)
        };
        return {
            pos: start,
            end,
            create: () => tooltipView
        };
    };
}
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