Firefox OS learnings & visions, WebAPIs - budapest.mobile

Firefox OS WebAPIs, learnings & visions @robertnyman

Firefox OS
Using HTML5, CSS and JavaScript
together with a number of APIs to
build apps and customize the UI.

{
"version": "1",
"name": "Firefox OS Boilerplate App",
"launch_path": "/index.html",
"description": "Boilerplate Firefox OS app",
"icons": {
"16": "/images/logo16.png",
"128": "/images/logo128.png"
},
"developer": {
"name": "Robert Nyman",
"url": "http://robertnyman.com"
},
"installs_allowed_from": ["*"],
"default_locale": "en"
}

Web Content
Regular web content
Installed Web App
A regular web app
Privileged Web App
More access, more responsibility
Certified Web App
Device-critical applications

https://wiki.mozilla.org/WebAPI#Planned_for_initial_release_of_B2G_.
28aka_Basecamp.29

"permissions": {
"contacts": {
"description": "Required for autocompletion in the share screen",
"access": "readcreate"
},
"alarms": {
"description": "Required to schedule notifications"
}
}

Vibration API (W3C)
Screen Orientation
Geolocation API
Mouse Lock API (W3C)
Open WebApps
Network Information API (W3C)
Battery Status API (W3C)
Alarm API
Web Activities
Push Notifications API
WebFM API
WebPayment
IndexedDB (W3C)
Ambient light sensor
Proximity sensor
Notification
Regular APIs

var battery = navigator.battery;
if (battery) {
var batteryLevel = Math.round(battery.level * 100) + "%",
charging = (battery.charging)? "" : "not ",
chargingTime = parseInt(battery.chargingTime / 60, 10),
dischargingTime = parseInt(battery.dischargingTime / 60, 10);
// Set events
battery.addEventListener("levelchange", setStatus, false);
battery.addEventListener("chargingchange", setStatus, false);
battery.addEventListener("chargingtimechange", setStatus, false);
battery.addEventListener("dischargingtimechange", setStatus, false);
}

var notification = navigator.mozNotification;
notification.createNotification(
"See this",
"This is a notification",
iconURL
);

// Portrait mode:
screen.mozLockOrientation("portrait");
/*
Possible values:
"landscape"
"portrait"
"landscape-primary"
"landscape-secondary"
"portrait-primary"
"portrait-secondary"
*/

// Vibrate for one second
navigator.vibrate(1000);
// Vibration pattern [vibrationTime, pause,…]
navigator.vibrate([200, 100, 200, 100]);
// Vibrate for 5 seconds
// Turn off vibration

window.addEventListener("deviceproximity", function (event) {
// Current device proximity, in centimeters
console.log(event.value);
// The maximum sensing distance the sensor is
// able to report, in centimeters
console.log(event.max);
// The minimum sensing distance the sensor is
// able to report, in centimeters
console.log(event.min);
});

window.addEventListener("devicelight", function (event) {
// The lux values for "dim" typically begin below 50,
// and the values for "bright" begin above 10000
console.log(event.value);
});

document.addEventListener("visibilitychange", function () {
if (document.hidden) {
console.log("App is hidden");
}
else {
console.log("App has focus");
}
});

Device Storage API
Browser API
TCP Socket API
Contacts API
systemXHR
Privileged APIs

var deviceStorage = navigator.getDeviceStorage("videos");

{
"activities": {
"share": {
"filters": {
"type": ["image/png", "image/gif"]
}
"href": "sharing.html",
"disposition": "window"
}
}
}

browse
configure
costcontrol
dial
open
pick
record
save-bookmark
share
view
update
new:
type:"mail", “websms/sms” or
“webcontacts/contact”

Resource lock API
UDP Datagram Socket API
Peer to Peer API
WebNFC
WebUSB
HTTP-cache API
Calendar API
Spellcheck API
LogAPI
Keyboard/IME API
WebRTC
FileHandle API
Sync API

{
"activities": {
"nfc-ndef-discovered": {
"filters": {
"type": "url",
"url": {
"required":true,
"pattern":"https?:.{1,16384}",
"patternFlags":"i"
}
}
}
}
}

navigator.mozSetMessageHandler("activity", handlerFunction);
// Example handler to get the URL from the activity.
function handlerFunction(activity) {
if (activity.source.data.type == "url") {
var url = activity.source.data.url;
}
}

"permissions": {
"nfc": {
"access": "readwrite"
}
}

// Constructing a MozNFCTag object
function ndefDiscoveredHandler(activity) {
var data = activity.source.data;
var tag = navigator.mozNfc.getNFCTag(data.sessionToken);
console.log(tag instanceof MozNFCTag); // should print true
}

// Reading a MozNFCTag
// tag is an instance of MozNFCTag
var request = tag.readNDEF();
request.onsuccess = function() {
var ndefRecords = request.result;
// ndefRecords should be an array of MozNDEFRecord.
};

// Sending data to peers via NFC
navigator.mozNfc.onpeerready = function (evt) {
var peer = navigator.mozNfc.getNFCPeer(evt.detail);
console.log(peer instanceof MozNFCPeer); // should print true;
// construct the NDEF records to send by creating
// an array of MozNDEFRecord objecs.
var request = peer.sendNDEF(ndefRecords);
};

Firefox OS Boilerplate App
https://github.com/robnyman/Firefox-OS-Boilerplate-App

Choose Device
Tools > Web Developer > App Manager

Simulator

Inspector

Breakpoints

Events

Debug system apps

Debug system apps - Firefox

Debug system apps - Firefox on the device

Robert Nyman
robertnyman.com
robert@mozilla.com
Mozilla
@robertnyman

Firefox OS learnings & visions, WebAPIs - budapest.mobile

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