@kui-shell/core
Version:
An Electron-based shell for cloud-native development
72 lines • 3.15 kB
JavaScript
/*
* Copyright 2017 The Kubernetes Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
export function isStringResponse(response) {
return response === undefined || typeof response === 'string';
}
const enumerators = [];
/** A plugin has offered a tab completion Enumerator */
export function registerEnumerator(enumerator, priority = 0) {
enumerators.push({ enumerator, priority });
}
/**
* Consult each registered enumerator to see what it has to offer in
* the way of completions. Pick the one with highest priority, or the
* first to register in the case of a tie-breaker.
*
*/
export function applyEnumerator(tab, commandLine, spec) {
return __awaiter(this, void 0, void 0, function* () {
// this is a list of all offered completions, paired with the
// priority of the registered enumerator
const lists = (yield Promise.all(enumerators.map((_) => __awaiter(this, void 0, void 0, function* () {
return ({
response: yield _.enumerator(tab, commandLine, spec),
priority: _.priority
});
})))).filter(_ => _.response && _.response.length > 0);
if (lists.length === 0) {
// no enumerators had anything to suggest
}
else if (lists.length === 1) {
// exactly one enumerator had something to suggest
return lists[0].response;
}
else {
// in this case, more than one enumerator had something to
// suggest. pick the one with highest priority, or the first to
// register
const bestList = lists.slice(1).reduce((best, list) => {
if (best.priority < list.priority) {
return list;
}
else {
return best;
}
}, lists[0]);
return bestList.response;
}
});
}
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