392 lines
10 KiB
JavaScript
392 lines
10 KiB
JavaScript
/* jslint node: true */
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'use strict';
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var Config = require('./config.js').config;
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var art = require('./art.js');
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var ansi = require('./ansi_term.js');
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var miscUtil = require('./misc_util.js');
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var Log = require('./logger.js').log;
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var configCache = require('./config_cache.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 fs = require('fs');
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var paths = require('path');
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var async = require('async');
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var _ = require('lodash');
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var assert = require('assert');
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exports.loadTheme = loadTheme;
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exports.getThemeArt = getThemeArt;
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exports.getRandomTheme = getRandomTheme;
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exports.initAvailableThemes = initAvailableThemes;
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exports.displayThemeArt = displayThemeArt;
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exports.displayThemedPause = displayThemedPause;
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exports.displayThemedAsset = displayThemedAsset;
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function refreshThemeHelpers(theme) {
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//
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// Create some handy helpers
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//
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theme.helpers = {
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getPasswordChar : function() {
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var pwChar = Config.defaults.passwordChar;
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if(_.has(theme, 'customization.defaults.general')) {
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var themePasswordChar = theme.customization.defaults.general.passwordChar;
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if(_.isString(themePasswordChar)) {
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pwChar = themePasswordChar.substr(0, 1);
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} else if(_.isNumber(themePasswordChar)) {
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pwChar = String.fromCharCode(themePasswordChar);
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}
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}
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return pwChar;
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},
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getDateFormat : function(style) {
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style = style || 'short';
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var format = Config.defaults.dateFormat[style] || 'MM/DD/YYYY';
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if(_.has(theme, 'customization.defaults.dateFormat')) {
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return theme.customization.defaults.dateFormat[style] || format;
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}
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return format;
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},
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getTimeFormat : function(style) {
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style = style || 'short';
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var format = Config.defaults.timeFormat[style] || 'h:mm a';
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if(_.has(theme, 'customization.defaults.timeFormat')) {
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return theme.customization.defaults.timeFormat[style] || format;
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}
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return format;
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},
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getDateTimeFormat : function(style) {
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style = style || 'short';
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var format = Config.defaults.dateTimeFormat[style] || 'MM/DD/YYYY h:mm a';
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if(_.has(theme, 'customization.defaults.dateTimeFormat')) {
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return theme.customization.defaults.dateTimeFormat[style] || format;
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}
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return format;
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}
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}
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}
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function loadTheme(themeID, cb) {
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var path = paths.join(Config.paths.themes, themeID, 'theme.hjson');
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configCache.getConfigWithOptions( { filePath : path, forceReCache : true }, function loaded(err, theme) {
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if(err) {
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cb(err);
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} else {
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if(!_.isObject(theme.info)) {
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cb(new Error('Invalid theme or missing \'info\' section'));
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return;
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}
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refreshThemeHelpers(theme);
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cb(null, theme, path);
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}
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});
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}
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var availableThemes = {};
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function initAvailableThemes(cb) {
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async.waterfall(
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[
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function getDir(callback) {
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fs.readdir(Config.paths.themes, function onReadDir(err, files) {
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callback(err, files);
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});
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},
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function filterFiles(files, callback) {
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var filtered = files.filter(function onFilter(file) {
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return fs.statSync(paths.join(Config.paths.themes, file)).isDirectory();
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});
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callback(null, filtered);
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},
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function populateAvailable(filtered, callback) {
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filtered.forEach(function onTheme(themeId) {
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loadTheme(themeId, function themeLoaded(err, theme, themePath) {
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if(!err) {
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availableThemes[themeId] = theme;
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configCache.on('recached', function recached(path) {
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if(themePath === path) {
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loadTheme(themeId, function reloaded(err, reloadedTheme) {
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Log.debug( { info : theme.info }, 'Theme recached' );
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availableThemes[themeId] = reloadedTheme;
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});
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}
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});
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Log.debug( { info : theme.info }, 'Theme loaded');
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}
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});
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});
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callback(null);
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}
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],
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function onComplete(err) {
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if(err) {
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cb(err);
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return;
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}
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cb(null, availableThemes.length);
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}
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);
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}
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function getRandomTheme() {
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if(Object.getOwnPropertyNames(availableThemes).length > 0) {
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var themeIds = Object.keys(availableThemes);
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return themeIds[Math.floor(Math.random() * themeIds.length)];
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}
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}
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function getThemeArt(options, cb) {
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//
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// options - required:
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// name
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// client
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//
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// options - optional
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// themeId
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// asAnsi
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// readSauce
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// random
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//
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if(!options.themeId && _.has(options.client, 'user.properties.theme_id')) {
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options.themeId = options.client.user.properties.theme_id;
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} else {
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options.themeId = Config.defaults.theme;
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}
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// :TODO: replace asAnsi stuff with something like retrieveAs = 'ansi' | 'pipe' | ...
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// :TODO: Some of these options should only be set if not provided!
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options.asAnsi = true; // always convert to ANSI
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options.readSauce = true; // read SAUCE, if avail
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options.random = _.isBoolean(options.random) ? options.random : true; // FILENAME<n>.EXT support
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//
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// We look for themed art in the following manor:
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// * Supplied theme via |themeId|
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// * Fallback 1: Default theme (if different than |themeId|)
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// * General art directory
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//
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async.waterfall(
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[
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function fromSuppliedTheme(callback) {
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options.basePath = paths.join(Config.paths.themes, options.themeId);
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art.getArt(options.name, options, function artLoaded(err, artInfo) {
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callback(null, artInfo);
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});
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},
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function fromDefaultTheme(artInfo, callback) {
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if(artInfo || Config.defaults.theme === options.themeId) {
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callback(null, artInfo);
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} else {
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console.log('trying default theme')
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options.basePath = paths.join(Config.paths.themes, Config.defaults.theme);
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art.getArt(options.name, options, function artLoaded(err, artInfo) {
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callback(null, artInfo);
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});
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}
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},
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function fromGeneralArtDir(artInfo, callback) {
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if(artInfo) {
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callback(null, artInfo);
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} else {
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console.log('using general art dir')
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options.basePath = Config.paths.art;
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art.getArt(options.name, options, function artLoaded(err, artInfo) {
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console.log('cannot find art: ' + options.name)
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callback(err, artInfo);
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});
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}
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}
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],
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cb // cb(err, artInfo)
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);
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}
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function displayThemeArt(options, cb) {
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assert(_.isObject(options));
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assert(_.isObject(options.client));
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assert(_.isString(options.name));
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getThemeArt(options, function themeArt(err, artInfo) {
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if(err) {
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cb(err);
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} else {
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// :TODO: just use simple merge of options -> displayOptions
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var dispOptions = {
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art : artInfo.data,
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sauce : artInfo.sauce,
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client : options.client,
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font : options.font,
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trailingLF : options.trailingLF,
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};
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art.display(dispOptions, function displayed(err, mciMap, extraInfo) {
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cb(err, { mciMap : mciMap, artInfo : artInfo, extraInfo : extraInfo } );
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});
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}
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});
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}
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//
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// Pause prompts are a special prompt by the name 'pause'.
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//
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function displayThemedPause(options, cb) {
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//
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// options.client
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// options clearPrompt
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//
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assert(_.isObject(options.client));
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if(!_.isBoolean(options.clearPrompt)) {
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options.clearPrompt = true;
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}
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// :TODO: Support animated pause prompts. Probably via MCI with AnimatedView
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var artInfo;
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var vc;
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var promptConfig;
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async.series(
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[
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function loadPromptJSON(callback) {
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configCache.getModConfig('prompt.hjson', function loaded(err, promptJson) {
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if(err) {
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callback(err);
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} else {
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if(_.has(promptJson, [ 'prompts', 'pause' ] )) {
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promptConfig = promptJson.prompts.pause;
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callback(_.isObject(promptConfig) ? null : new Error('Invalid prompt config block!'));
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} else {
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callback(new Error('Missing standard \'pause\' prompt'))
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}
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}
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});
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},
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function displayPausePrompt(callback) {
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displayThemedAsset(
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promptConfig.art,
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options.client,
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promptConfig.options,
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function displayed(err, artData) {
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artInfo = artData;
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callback(err);
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}
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);
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},
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function discoverCursorPosition(callback) {
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options.client.once('cursor position report', function cpr(pos) {
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artInfo.startRow = pos[0] - artInfo.height;
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callback(null);
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});
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options.client.term.rawWrite(ansi.queryPos());
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},
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function createMCIViews(callback) {
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vc = new ViewController( { client : options.client, noInput : true } );
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vc.loadFromPromptConfig( { promptName : 'pause', mciMap : artInfo.mciMap, config : promptConfig }, function loaded(err) {
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callback(null);
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});
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},
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function pauseForUserInput(callback) {
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options.client.waitForKeyPress(function keyPressed() {
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callback(null);
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});
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},
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function clearPauseArt(callback) {
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if(options.clearPrompt) {
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if(artInfo.startRow) {
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options.client.term.rawWrite(ansi.goto(artInfo.startRow, 1));
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options.client.term.rawWrite(ansi.deleteLine(artInfo.height));
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} else {
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options.client.term.rawWrite(ansi.up(1) + ansi.deleteLine());
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}
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}
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callback(null);
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}
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/*
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, function debugPause(callback) {
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setTimeout(function to() {
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callback(null);
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}, 4000);
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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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Log.error(err);
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}
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if(vc) {
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vc.detachClientEvents();
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}
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cb();
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}
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);
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}
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function displayThemedAsset(assetSpec, client, options, cb) {
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assert(_.isObject(client));
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// options are... optional
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if(3 === arguments.length) {
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cb = options;
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options = {};
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}
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var artAsset = asset.getArtAsset(assetSpec);
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if(!artAsset) {
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cb(new Error('Asset not found: ' + assetSpec));
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return;
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}
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// :TODO: just use simple merge of options -> displayOptions
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var dispOpts = {
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name : artAsset.asset,
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client : client,
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font : options.font,
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trailingLF : options.trailingLF,
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};
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switch(artAsset.type) {
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case 'art' :
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displayThemeArt(dispOpts, function displayed(err, artData) {
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cb(err, err ? null : { mciMap : artData.mciMap, height : artData.extraInfo.height } );
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});
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break;
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case 'method' :
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// :TODO: fetch & render via method
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break;
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case 'inline ' :
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// :TODO: think about this more in relation to themes, etc. How can this come
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// from a theme (with override from menu.json) ???
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// look @ client.currentTheme.inlineArt[name] -> menu/prompt[name]
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break;
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default :
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cb(new Error('Unsupported art asset type: ' + artAsset.type));
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break;
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}
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} |