@21epub/epub-thirdparty
Version:
epub-thirdparty
28 lines (27 loc) • 1.56 kB
JavaScript
/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import { coalesce } from '../../../base/common/arrays.js';
import { CancellationToken } from '../../../base/common/cancellation.js';
import { onUnexpectedExternalError } from '../../../base/common/errors.js';
import { registerModelAndPositionCommand } from '../../browser/editorExtensions.js';
import { HoverProviderRegistry } from '../../common/modes.js';
export function getHover(model, position, token) {
const supports = HoverProviderRegistry.ordered(model);
const promises = supports.map(support => {
return Promise.resolve(support.provideHover(model, position, token)).then(hover => {
return hover && isValid(hover) ? hover : undefined;
}, err => {
onUnexpectedExternalError(err);
return undefined;
});
});
return Promise.all(promises).then(coalesce);
}
registerModelAndPositionCommand('_executeHoverProvider', (model, position) => getHover(model, position, CancellationToken.None));
function isValid(result) {
const hasRange = (typeof result.range !== 'undefined');
const hasHtmlContent = typeof result.contents !== 'undefined' && result.contents && result.contents.length > 0;
return hasRange && hasHtmlContent;
}