318 lines
8.2 KiB
JavaScript
318 lines
8.2 KiB
JavaScript
/* jslint node: true */
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'use strict';
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var PluginModule = require('./plugin_module.js').PluginModule;
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var theme = require('./theme.js');
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var art = require('./art.js');
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var Log = require('./logger.js').log;
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var ansi = require('./ansi_term.js');
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var asset = require('./asset.js');
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var ViewController = require('./view_controller.js').ViewController;
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var menuUtil = require('./menu_util.js');
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var Config = require('./config.js').config;
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var async = require('async');
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var assert = require('assert');
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var _ = require('lodash');
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exports.MenuModule = MenuModule;
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// :TODO: some of this is a bit off... should pause after finishedLoading()
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function MenuModule(options) {
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PluginModule.call(this, options);
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var self = this;
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this.menuName = options.menuName;
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this.menuConfig = options.menuConfig;
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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.cls = _.isBoolean(this.menuConfig.options.cls) ?
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this.menuConfig.options.cls :
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Config.menus.cls;
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this.menuConfig.config = this.menuConfig.config || {};
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this.initViewControllers();
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this.initSequence = function() {
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var mciData = { };
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async.series(
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[
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function beforeDisplayArt(callback) {
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self.beforeArt();
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callback(null);
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},
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function displayMenuArt(callback) {
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if(_.isString(self.menuConfig.art)) {
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theme.displayThemedAsset(
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self.menuConfig.art,
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self.client,
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self.menuConfig.options, // can include .font, .trailingLF, etc.
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function displayed(err, artData) {
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if(err) {
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self.client.log.debug( { art : self.menuConfig.art, err : err }, 'Could not display art');
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} else {
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mciData.menu = artData.mciMap;
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}
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callback(null); // non-fatal
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}
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);
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} else {
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callback(null);
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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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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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// If a prompt is specified, we need the configuration
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if(!_.isObject(self.menuConfig.promptConfig)) {
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callback(new Error('Prompt specified but configuraiton not found!'));
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return;
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}
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// Prompts *must* have art. If it's missing it's an error
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// :TODO: allow inline prompts in the future, e.g. @inline:memberName -> { "memberName" : { "text" : "stuff", ... } }
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var promptConfig = self.menuConfig.promptConfig;
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theme.displayThemedAsset(
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promptConfig.art,
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self.client,
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self.menuConfig.options, // can include .font, .trailingLF, etc.
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function displayed(err, artData) {
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if(!err) {
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mciData.prompt = artData.mciMap;
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}
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callback(err);
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});
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} else {
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callback(null);
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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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self.client.once('cursor position report', function cpr(pos) {
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self.afterArtPos = pos;
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self.client.log.trace( { position : pos }, 'After art position recorded');
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callback(null);
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});
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self.client.term.write(ansi.queryPos());
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} else {
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callback(null);
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}
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},
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function afterArtDisplayed(callback) {
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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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self.client.term.write(ansi.goto(self.afterArtPos[0], 1));
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// :TODO: really need a client.term.pause() that uses the correct art/etc.
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theme.displayThemedPause( { client : self.client }, function keyPressed() {
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callback(null);
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});
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} else {
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callback(null);
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}
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}
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],
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function complete(err) {
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if(err) {
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console.log(err)
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// :TODO: what to do exactly?????
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}
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self.finishedLoading();
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self.autoNextMenu();
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}
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);
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};
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this.shouldPause = function() {
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return 'end' === self.menuConfig.options.pause || true === self.menuConfig.options.pause;
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};
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this.hasNextTimeout = function() {
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return _.isNumber(self.menuConfig.options.nextTimeout);
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};
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this.autoNextMenu = function() {
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function goNext() {
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if(_.isString(self.menuConfig.next) || _.isArray(self.menuConfig.next)) {
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menuUtil.handleNext(self.client, self.menuConfig.next);
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} else {
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self.prevMenu();
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}
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}
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if(_.has(self.menuConfig, 'runtime.autoNext') && true === self.menuConfig.runtime.autoNext) {
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/*
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If 'next' is supplied, we'll use it. Otherwise, utlize fallback which
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may be explicit (supplied) or non-explicit (previous menu)
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'next' may be a simple asset, or a object with next.asset and
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extrArgs
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next: assetSpec
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-or-
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next: {
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asset: assetSpec
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extraArgs: ...
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}
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*/
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if(self.hasNextTimeout()) {
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setTimeout(function nextTimeout() {
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goNext();
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}, this.menuConfig.options.nextTimeout);
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} else {
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goNext();
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}
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}
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};
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this.haveNext = function() {
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return (_.isString(this.menuConfig.next) || _.isArray(this.menuConfig.next));
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};
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}
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require('util').inherits(MenuModule, PluginModule);
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require('./mod_mixins.js').ViewControllerManagement.call(MenuModule.prototype);
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MenuModule.prototype.enter = function(client) {
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this.client = client;
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assert(_.isObject(client));
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if(_.isString(this.menuConfig.status)) {
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this.client.currentStatus = this.menuConfig.status;
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} else {
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this.client.currentStatus = 'Browsing menus';
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}
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this.initSequence();
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};
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MenuModule.prototype.getSaveState = function() {
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// nothing in base
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};
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MenuModule.prototype.restoreSavedState = function(savedState) {
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// nothing in base
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};
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MenuModule.prototype.nextMenu = function(cb) {
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//
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// If we don't actually have |next|, we'll go previous
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//
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if(!this.haveNext()) {
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this.prevMenu(cb);
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return;
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}
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// :TODO: this, prevMenu(), and gotoMenu() need a default |cb| handler if none is supplied.
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// ...if the error is that we do not meet ACS requirements and did not get a match, then what?
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if(!cb) {
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cb = function(err) {
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if(err) {
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// :TODO: Don't console.log() here!
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console.log(err)
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}
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}
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}
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this.client.menuStack.next(cb);
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};
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MenuModule.prototype.prevMenu = function(cb) {
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this.client.menuStack.prev(cb);
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};
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MenuModule.prototype.gotoMenu = function(name, options, cb) {
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this.client.menuStack.goto(name, options, cb);
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};
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MenuModule.prototype.leave = function() {
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this.detachViewControllers();
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};
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MenuModule.prototype.beforeArt = function() {
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if(this.cls) {
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this.client.term.write(ansi.resetScreen());
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}
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if(_.isNumber(this.menuConfig.options.baudRate)) {
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this.client.term.write(ansi.setEmulatedBaudRate(this.menuConfig.options.baudRate));
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}
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};
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MenuModule.prototype.mciReady = function(mciData, cb) {
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// Reserved for sub classes
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cb(null);
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};
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MenuModule.prototype.standardMCIReadyHandler = function(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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var 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, function entry(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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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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var 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, function menuLoaded(err) {
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callback(err);
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});
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} else {
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callback(null);
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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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var 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, function promptLoaded(err) {
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callback(err);
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});
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} else {
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callback(null);
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}
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}
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],
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function complete(err) {
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cb(err);
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}
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);
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};
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MenuModule.prototype.finishedLoading = function() {
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}; |