Matthew Riley MacPherson tofumatt

Face Value

by tofumatt, Mozilla's Vespa Expert

Face Value is a currency conversion app that does things differently: instead of converting arbitrary amounts it shows you the actual denominations in the country you're visiting. It lets you think in your home currency even with a foreign currency in your pocket.

Face Value was built by Matthew Riley MacPherson and sarah ✈ semark. Both are remote-working, frequent travellers.

	'use strict';

	// A very simple, key/value-based IndexedDB library for storing binary data
	// in IndexedDB. Used because Podcasts needs to store large binary files (
	// podcast image covers and audio files) but can't use Appcache or localStorage.
	// Because most data is manipulated with Backbone.js and stored in localStorage
	// though, we just use IndexedDB as blob storage.
	//
	// This library lets a user store arbitrary "big data" in IndexedDB with a
	// stupid simple API:

	E/GeckoConsole( 4371): [JavaScript Error: "The character encoding of the HTML document was not declared. The document will render with garbled text in some browser configurations if the document contains characters from outside the US-ASCII range. The character encoding of the page must be declared in the document or in the transfer protocol." {file: "http://mozilla.github.io/high-fidelity/" line: 0}]
	I/GeckoDump( 109): XXX FIXME : Got a mozContentEvent: webapps-install-granted
	E/GeckoConsole( 109): Content JS INFO at app://system.gaiamobile.org/js/app_install_manager.js:197 in ai_handleDownloadError: downloadError event, error code is INVALID_SECURITY_LEVEL
	I/Gecko ( 405): -- webapps.js uninstall http://mozilla.github.io/high-fidelity/manifest.webapp
	I/Gecko ( 109): -- webapps.js uninstall http://mozilla.github.io/high-fidelity/manifest.webapp
	E/GeckoConsole( 4371): [JavaScript Error: "msg is undefined" {file: "jar:file:///system/b2g/omni.ja!/components/Webapps.js" line: 532}]

	CACHE MANIFEST
	# v 0.1 / 12

	CACHE:
	css/app.css
	img/coins/[email protected]
	js/main.js
	js/lib/require.js

	NETWORK:

	var asyncStorage = require('localForage').asyncStorage;

	function displayValue() {
	asyncStorage.get('my_key', function(value) {
	alert('My value is: ' + value);
	});
	}

	// Notice we do this asynchronously, as all APIs here are async.
	asyncStorage.set('my_key', 500, displayValue);

	// We'll assume we aren't online.
	var online = false;

	// Assume we're a packaged app with systemXHR permissions.
	// See: https://developer.mozilla.org/en-US/docs/Web/Apps/App_permissions for more.
	var request = new window.XMLHttpRequest({mozSystem: true});
	request.open('GET', 'http://mozilla.com', true);

	request.addEventListener('load', function(event) {
	console.log('We seem to be online!', event);

	# Instant server, anywhere!
	server() {
	python -m SimpleHTTPServer $1 && open "http://localhost:${1}"
	}

	Process: firefox [2558]
	Path: /Applications/Aurora.app/Contents/MacOS/firefox
	Identifier: firefox
	Version: 26.0a2 (2613.10.28)
	Code Type: X86-64 (Native)
	Parent Process: firefox [2518]
	Responsible: firefox [2518]
	User ID: 501

	Date/Time: 2013-10-30 01:00:50.489 -0400

Matthew Riley MacPherson tofumatt

Face Value

by tofumatt, Mozilla's Vespa Expert

Why We Built Face Value