@kui-shell/core
Version:
An Electron-based shell for cloud-native development
158 lines • 5.89 kB
JavaScript
/*
* Copyright 2019 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());
});
};
import Debug from 'debug';
import { eventBus } from '../core/events';
import { promiseEach } from '../util/async';
const debug = Debug('core/models/TabState');
const registrar = [];
export function registerTabState(registration) {
registrar.push(registration);
}
/**
* State that we want to keep per tab
*
*/
export default class TabState {
constructor(uuid, _desiredStatusStripeDecoration = { type: 'default' }, _parent) {
this.uuid = uuid;
this._desiredStatusStripeDecoration = _desiredStatusStripeDecoration;
this._parent = _parent;
/** is the tab ready for command execution? */
this.ready = false;
/** state map
* outer key is `TabStateRegistrar.name`, inner key is `TabStateRegistrar.apiVersion`
* e.g. { 'plugins/plugin-core': {'v1': {'cwd': '/'}}}
*/
this._state = {};
/** functions to capture the states of tab */
this.captures = [];
/** functions to restore the states of the tab */
this.restores = [];
/** functions to capture this tab state and restore another tab state */
this.switchTos = [];
registrar.forEach(_ => {
this.register(_.name, _.apiVersion, _.capture, _.restore, _.switchTo);
});
}
get state() {
return this._state;
}
checkExistence(name, apiVersion) {
if (!this.state[name]) {
throw new Error(`${name} doesn't exist in tab state`);
}
else if (!this.state[name][apiVersion]) {
throw new Error(`${name} doesn't have version ${apiVersion}`);
}
else {
return true;
}
}
register(name, apiVersion, capture, restore, switchTo) {
// initialize the state
if (!this.state[name]) {
this.state[name] = { [apiVersion]: {} };
}
else if (!this.state[name][apiVersion]) {
this._state[name][apiVersion] = {};
}
else {
throw new Error(`${name} ${apiVersion} already registered`);
}
this.captures.push(capture);
this.restores.push(restore);
this.switchTos.push(switchTo);
}
getState(name, apiVersion, key) {
if (this.checkExistence(name, apiVersion)) {
if (this.state[name][apiVersion][key] === undefined) {
throw new Error(`${name} ${apiVersion} doesn't have state ${key}`);
}
else {
return this.state[name][apiVersion][key];
}
}
}
setState(name, apiVersion, key, value) {
return __awaiter(this, void 0, void 0, function* () {
if (this.checkExistence(name, apiVersion)) {
this.state[name][apiVersion][key] = value;
}
});
}
/** Capture contextual global state */
capture() {
this.captures.forEach(capture => capture(this));
}
/** Capture contextual global state and then restore `nextTabState` */
switchTo(nextTabState) {
return __awaiter(this, void 0, void 0, function* () {
yield promiseEach(this.switchTos, (switchTo) => __awaiter(this, void 0, void 0, function* () {
yield switchTo(this, nextTabState);
}));
nextTabState.updateStatusStripe();
});
}
/** Clone the captured state */
cloneWithUUID(uuid) {
this.capture(); // keep the function name, and mean capture all
const clone = new TabState(uuid, this.desiredStatusStripeDecoration, this);
clone.capture();
debug('cloned tab state', clone.uuid, clone._state);
return clone;
}
/** Enforce our desired status stripe decorations */
updateStatusStripe() {
if (this._parent) {
this._parent.updateStatusStripe();
}
else {
eventBus.emitStatusStripeChangeRequest(this.desiredStatusStripeDecoration);
}
}
get desiredStatusStripeDecoration() {
return this._desiredStatusStripeDecoration;
}
set desiredStatusStripeDecoration(decor) {
this._desiredStatusStripeDecoration = decor;
if (this._parent) {
this._parent.desiredStatusStripeDecoration = decor;
}
else {
this.updateStatusStripe();
}
}
/**
* Restore tab state
*
*/
restore() {
return __awaiter(this, void 0, void 0, function* () {
this.restores.forEach(restore => restore(this));
this.updateStatusStripe();
});
}
}
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