503 lines
16 KiB
JavaScript
503 lines
16 KiB
JavaScript
/* jslint node: true */
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'use strict';
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const PluginModule = require('./plugin_module.js').PluginModule;
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const theme = require('./theme.js');
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const ansi = require('./ansi_term.js');
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const ViewController = require('./view_controller.js').ViewController;
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const menuUtil = require('./menu_util.js');
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const Config = require('./config.js').get;
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const stringFormat = require('../core/string_format.js');
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const MultiLineEditTextView = require('../core/multi_line_edit_text_view.js').MultiLineEditTextView;
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const Errors = require('../core/enig_error.js').Errors;
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const { getPredefinedMCIValue } = require('../core/predefined_mci.js');
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// deps
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const async = require('async');
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const assert = require('assert');
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const _ = require('lodash');
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exports.MenuModule = class MenuModule extends PluginModule {
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constructor(options) {
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super(options);
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this.menuName = options.menuName;
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this.menuConfig = options.menuConfig;
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this.client = options.client;
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//this.menuConfig.options = options.menuConfig.options || {};
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this.menuMethods = {}; // methods called from @method's
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this.menuConfig.config = this.menuConfig.config || {};
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this.cls = _.get(this.menuConfig.config, 'cls', Config().menus.cls);
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//this.cls = _.isBoolean(this.menuConfig.options.cls) ? this.menuConfig.options.cls : Config().menus.cls;
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this.viewControllers = {};
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}
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enter() {
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this.initSequence();
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}
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leave() {
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this.detachViewControllers();
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}
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initSequence() {
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const self = this;
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const mciData = {};
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let pausePosition;
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const hasArt = () => {
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return _.isString(self.menuConfig.art) ||
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(Array.isArray(self.menuConfig.art) && _.has(self.menuConfig.art[0], 'acs'));
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};
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async.series(
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[
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function beforeDisplayArt(callback) {
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self.beforeArt(callback);
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},
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function displayMenuArt(callback) {
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if(!hasArt()) {
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return callback(null);
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}
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self.displayAsset(
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self.menuConfig.art,
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self.menuConfig.config,
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(err, artData) => {
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if(err) {
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self.client.log.trace('Could not display art', { art : self.menuConfig.art, reason : err.message } );
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} else {
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mciData.menu = artData.mciMap;
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}
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return callback(null); // any errors are non-fatal
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}
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);
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},
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function moveToPromptLocation(callback) {
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if(self.menuConfig.prompt) {
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// :TODO: fetch and move cursor to prompt location, if supplied. See notes/etc. on placements
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}
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return callback(null);
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},
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function displayPromptArt(callback) {
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if(!_.isString(self.menuConfig.prompt)) {
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return callback(null);
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}
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if(!_.isObject(self.menuConfig.promptConfig)) {
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return callback(Errors.MissingConfig('Prompt specified but no "promptConfig" block found'));
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}
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self.displayAsset(
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self.menuConfig.promptConfig.art,
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self.menuConfig.config,
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(err, artData) => {
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if(artData) {
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mciData.prompt = artData.mciMap;
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}
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return callback(err); // pass err here; prompts *must* have art
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}
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);
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},
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function recordCursorPosition(callback) {
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if(!self.shouldPause()) {
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return callback(null); // cursor position not needed
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}
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self.client.once('cursor position report', pos => {
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pausePosition = { row : pos[0], col : 1 };
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self.client.log.trace('After art position recorded', pausePosition );
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return callback(null);
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});
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self.client.term.rawWrite(ansi.queryPos());
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},
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function afterArtDisplayed(callback) {
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return self.mciReady(mciData, callback);
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},
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function displayPauseIfRequested(callback) {
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if(!self.shouldPause()) {
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return callback(null);
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}
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return self.pausePrompt(pausePosition, callback);
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},
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function finishAndNext(callback) {
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self.finishedLoading();
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return self.autoNextMenu(callback);
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}
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],
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err => {
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if(err) {
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self.client.log.warn('Error during init sequence', { error : err.message } );
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return self.prevMenu( () => { /* dummy */ } );
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}
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}
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);
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}
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beforeArt(cb) {
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if(_.isNumber(this.menuConfig.config.baudRate)) {
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// :TODO: some terminals not supporting cterm style emulated baud rate end up displaying a broken ESC sequence or a single "r" here
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this.client.term.rawWrite(ansi.setEmulatedBaudRate(this.menuConfig.config.baudRate));
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}
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if(this.cls) {
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this.client.term.rawWrite(ansi.resetScreen());
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}
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return cb(null);
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}
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mciReady(mciData, cb) {
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// available for sub-classes
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return cb(null);
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}
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finishedLoading() {
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// nothing in base
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}
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getSaveState() {
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// nothing in base
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}
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restoreSavedState(/*savedState*/) {
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// nothing in base
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}
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getMenuResult() {
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// default to the formData that was provided @ a submit, if any
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return this.submitFormData;
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}
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nextMenu(cb) {
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if(!this.haveNext()) {
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return this.prevMenu(cb); // no next, go to prev
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}
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return this.client.menuStack.next(cb);
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}
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prevMenu(cb) {
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return this.client.menuStack.prev(cb);
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}
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gotoMenu(name, options, cb) {
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return this.client.menuStack.goto(name, options, cb);
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}
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reload(cb) {
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const prevMenu = this.client.menuStack.pop();
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prevMenu.instance.leave();
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return this.client.menuStack.goto(prevMenu.name, cb);
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}
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prevMenuOnTimeout(timeout, cb) {
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setTimeout( () => {
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return this.prevMenu(cb);
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}, timeout);
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}
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addViewController(name, vc) {
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assert(!this.viewControllers[name], `ViewController by the name of "${name}" already exists!`);
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this.viewControllers[name] = vc;
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return vc;
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}
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removeViewController(name) {
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if(this.viewControllers[name]) {
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this.viewControllers[name].detachClientEvents();
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delete this.viewControllers[name];
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}
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}
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detachViewControllers() {
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Object.keys(this.viewControllers).forEach( name => {
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this.viewControllers[name].detachClientEvents();
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});
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}
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shouldPause() {
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return ('end' === this.menuConfig.config.pause || true === this.menuConfig.config.pause);
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}
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hasNextTimeout() {
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return _.isNumber(this.menuConfig.config.nextTimeout);
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}
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haveNext() {
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return (_.isString(this.menuConfig.next) || _.isArray(this.menuConfig.next));
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}
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autoNextMenu(cb) {
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const self = this;
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function gotoNextMenu() {
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if(self.haveNext()) {
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return menuUtil.handleNext(self.client, self.menuConfig.next, {}, cb);
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} else {
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return self.prevMenu(cb);
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}
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}
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if(_.has(this.menuConfig, 'runtime.autoNext') && true === this.menuConfig.runtime.autoNext) {
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if(this.hasNextTimeout()) {
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setTimeout( () => {
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return gotoNextMenu();
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}, this.menuConfig.config.nextTimeout);
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} else {
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return gotoNextMenu();
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}
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}
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}
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standardMCIReadyHandler(mciData, cb) {
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//
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// A quick rundown:
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// * We may have mciData.menu, mciData.prompt, or both.
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// * Prompt form is favored over menu form if both are present.
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// * Standard/prefdefined MCI entries must load both (e.g. %BN is expected to resolve)
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//
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const self = this;
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async.series(
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[
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function addViewControllers(callback) {
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_.forEach(mciData, (mciMap, name) => {
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assert('menu' === name || 'prompt' === name);
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self.addViewController(name, new ViewController( { client : self.client } ) );
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});
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return callback(null);
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},
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function createMenu(callback) {
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if(!self.viewControllers.menu) {
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return callback(null);
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}
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const menuLoadOpts = {
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mciMap : mciData.menu,
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callingMenu : self,
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withoutForm : _.isObject(mciData.prompt),
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};
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self.viewControllers.menu.loadFromMenuConfig(menuLoadOpts, err => {
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return callback(err);
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});
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},
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function createPrompt(callback) {
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if(!self.viewControllers.prompt) {
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return callback(null);
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}
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const promptLoadOpts = {
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callingMenu : self,
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mciMap : mciData.prompt,
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};
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self.viewControllers.prompt.loadFromPromptConfig(promptLoadOpts, err => {
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return callback(err);
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});
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}
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],
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err => {
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return cb(err);
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}
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);
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}
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displayAsset(name, options, cb) {
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if(_.isFunction(options)) {
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cb = options;
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options = {};
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}
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if(options.clearScreen) {
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this.client.term.rawWrite(ansi.resetScreen());
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}
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return theme.displayThemedAsset(
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name,
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this.client,
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Object.assign( { font : this.menuConfig.config.font }, options ),
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(err, artData) => {
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if(cb) {
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return cb(err, artData);
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}
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}
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);
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}
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prepViewController(name, formId, mciMap, cb) {
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const needsCreated = _.isUndefined(this.viewControllers[name]);
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if(needsCreated) {
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const vcOpts = {
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client : this.client,
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formId : formId,
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};
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const vc = this.addViewController(name, new ViewController(vcOpts));
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const loadOpts = {
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callingMenu : this,
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mciMap : mciMap,
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formId : formId,
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};
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return vc.loadFromMenuConfig(loadOpts, err => {
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return cb(err, vc, true);
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});
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}
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this.viewControllers[name].setFocus(true);
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return cb(null, this.viewControllers[name], false);
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}
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prepViewControllerWithArt(name, formId, options, cb) {
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this.displayAsset(
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this.menuConfig.config.art[name],
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options,
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(err, artData) => {
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if(err) {
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return cb(err);
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}
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return this.prepViewController(name, formId, artData.mciMap, cb);
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}
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);
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}
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optionalMoveToPosition(position) {
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if(position) {
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position.x = position.row || position.x || 1;
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position.y = position.col || position.y || 1;
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this.client.term.rawWrite(ansi.goto(position.x, position.y));
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}
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}
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pausePrompt(position, cb) {
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if(!cb && _.isFunction(position)) {
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cb = position;
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position = null;
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}
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this.optionalMoveToPosition(position);
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return theme.displayThemedPause(this.client, cb);
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}
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promptForInput( { formName, formId, promptName, prevFormName, position } = {}, options, cb) {
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if(!cb && _.isFunction(options)) {
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cb = options;
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options = {};
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}
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options.viewController = this.addViewController(
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formName,
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new ViewController( { client : this.client, formId } )
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);
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options.trailingLF = _.get(options, 'trailingLF', false);
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let prevVc;
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if(prevFormName) {
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prevVc = this.viewControllers[prevFormName];
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if(prevVc) {
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prevVc.setFocus(false);
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}
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}
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//let artHeight;
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options.submitNotify = () => {
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if(prevVc) {
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prevVc.setFocus(true);
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}
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this.removeViewController(formName);
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if(options.clearAtSubmit) {
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this.optionalMoveToPosition(position);
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if(options.clearWidth) {
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this.client.term.rawWrite(`${ansi.reset()}${' '.repeat(options.clearWidth)}`);
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} else {
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// :TODO: handle multi-rows via artHeight
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this.client.term.rawWrite(ansi.eraseLine());
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}
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}
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};
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options.viewController.setFocus(true);
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this.optionalMoveToPosition(position);
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theme.displayThemedPrompt(promptName, this.client, options, (err, artInfo) => {
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/*
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if(artInfo) {
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artHeight = artInfo.height;
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}
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*/
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return cb(err, artInfo);
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});
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}
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setViewText(formName, mciId, text, appendMultiLine) {
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const view = this.viewControllers[formName].getView(mciId);
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if(!view) {
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return;
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}
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if(appendMultiLine && (view instanceof MultiLineEditTextView)) {
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view.addText(text);
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} else {
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view.setText(text);
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}
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}
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updateCustomViewTextsWithFilter(formName, startId, fmtObj, options) {
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options = options || {};
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let textView;
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let customMciId = startId;
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const config = this.menuConfig.config;
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const endId = options.endId || 99; // we'll fail to get a view before 99
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while(customMciId <= endId && (textView = this.viewControllers[formName].getView(customMciId)) ) {
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const key = `${formName}InfoFormat${customMciId}`; // e.g. "mainInfoFormat10"
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const format = config[key];
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if(format && (!options.filter || options.filter.find(f => format.indexOf(f) > - 1))) {
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const text = stringFormat(format, fmtObj);
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if(options.appendMultiLine && (textView instanceof MultiLineEditTextView)) {
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textView.addText(text);
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} else {
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textView.setText(text);
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}
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}
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++customMciId;
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}
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}
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refreshPredefinedMciViewsByCode(formName, mciCodes) {
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const form = _.get(this, [ 'viewControllers', formName] );
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if(form) {
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form.getViewsByMciCode(mciCodes).forEach(v => {
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if(!v.setText) {
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return;
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}
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v.setText(getPredefinedMCIValue(this.client, v.mciCode));
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});
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}
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}
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};
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