Firefox OS, HTML5 to the next level - Python Montreal - 2014-05-12
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The document discusses Firefox OS development using HTML5, CSS3, and JavaScript, highlighting its open-source nature and support from various hardware partners, aimed primarily at emerging markets. It presents technical details on creating apps for Firefox OS, including APIs available for both regular and privileged access, as well as code snippets for implementing features like ambient light sensors and battery status. Additionally, it provides resources such as links to the Firefox OS simulator and app manager, encouraging developers to start creating Firefox OS applications.
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"pick": {
"filters": {
"type": ["image/jpeg", "image/png"]
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"disposition": "inline",
"returnValue": true,
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Firefox OS, HTML5 to the next level - Python Montreal - 2014-05-12
- 1. Firefox OS Python Montreal HTML5 to the next level 2014-05-12 Frédéric Harper Sr. Technical Evangelist @ Mozilla @fharper | outofcomfortzone.net CreativeCommons:https://bitly.com/RwaQxN
- 2. print("Sorry, I don’t speak Python")
- 7. 38 billion devices connected in 2020 ABI Research - 2013-05-09 - http://j.mp/38billion
- 10. What you deserve
- 12. Built with the Web Using HTML5, CSS3 and JavaScript with a number of APIs to build apps.
- 13. It’s open source
- 14. Some facts § 7 operator (17 committed) & 4 hardware partners § ZTE Open, Alcatel One Touch Fire, Geeksphone Keon, Geeksphone Peak, LG FireWeb… § More to come: Flame, Huawei Y300, ZTE Open C, Alcatel One Touche Fire C & E & S… § Aimed at emerging markets/low end market
- 18. A Firefox OS app? § Creating a hosted or packaged app § Using § Vanilla HTML5 § Librairies… § Regular API § Privileged API § Certified API
- 19. HTML5 + manifest (JSON) = Firefox OS app { "version": “42", "name": ”My amazing app", "launch_path": "/index.html", "description": ”My super amazing app do super amazing things", "icons": { "16": "/images/logo16.png”,}, "developer": { "name": ”Frédéric Harper", "url": "http://outofcomfortzone.net", }, "default_locale": "en", "permissions": { "geolocation": { "description": ”Get the long/lat of the user" } } }
- 20. DEMO App Manager + Emberjs todomvc
- 21. Web APIs
- 22. Web APIs – Regular • Alarm API • Ambient light sensor • Archive API • Battery Status API • Geolocation API • IndexedDB • Network Information API • Notifications API • Open WebApps • Proximity sensor • Push API • Screen Orientation • Vibration API • Web Activities • WebFM API • WebPayment packaged hosted
- 24. Ambient Light Sensor window.addEventListener("devicelight", function (event) { // The level of the ambient light in lux // The lux values for "dim" typically begin below 50, // and the values for "bright" begin above 10000 console.log(event.value); });
- 25. DEMO Boilerplate – Ambient Light Sensor
- 26. Battery Status
- 27. Battery Status var battery = navigator.battery; if (battery) { var batteryLevel = Math.round(battery.level * 100) + "%", charging = (battery.charging)? “yes" : "no", chargingTime = parseInt(battery.chargingTime / 60, 10, dischargingTime = parseInt(battery.dischargingTime / 60, 10); battery.addEventListener("levelchange", setStatus, false); battery.addEventListener("chargingchange", setStatus, false); battery.addEventListener("chargingtimechange", setStatus, false); }
- 28. DEMO Boilerplate – Battery status
- 29. Web APIs – Privileged • Browser API • Contacts API • Device Storage API • systemXHR • TCP Socket API packaged
- 30. Browser
- 31. Browser <div> <span id='location-bar'></span> <button onclick='go_button_clicked()'>Go</button> </div> <div id='load-status'></div> <div id='security-status'></div> <img id='favicon'> <div id='title'></div> <iframe mozbrowser src=‘yoursite.com' id='browser'></iframe>
- 32. Browser addEventListener('mozbrowserloadstart', function(e) { //Do stuff }); /* Possible values: "mozbrowserloadstart“ "mozbrowserloadend" "mozbrowserlocationchange“ "mozbrowsertitlechange" "mozbrowsericonchange“ "mozbrowsersecuritychange" "mozbrowsercontextmenu“ "mozbrowsererror" "mozbrowserkeyevent“ "mozbrowsershowmodalprompt" "mozbrowseropenwindow“ "mozbrowserclose" */
- 33. Web APIs – Certified • Camera API • Idle API • Mobile Connection API • Network Stats API • Permissions API • Power Management API • Settings API • Time/Clock API • Voicemail • WebBluetooth • WebSMS • WebTelephony • WiFi Information API OS/OEM
- 34. Web Activities
- 35. Web Activities • browse • configure • costcontrol • dial • Open • new • mail • websms/sms • webcontacts/contact • pick • record • save-bookmark • share • view • update packaged hosted
- 36. Pick var activity = new MozActivity({ name: "pick", //Provide the data required //by the filter of the activity data: { type: "image/jpeg" } });
- 37. Pick activity.onsuccess = function () { var img = document.createElement("img"); if (this.result.blob.type.indexOf("image") != -1) { img.src = window.URL.createObjectURL(this.result.blob); } }; activity.onerror = function () { //error };
- 38. Dial var call = new MozActivity({ name: "dial", data: { number: "+46777888999" } });
- 39. Web Activity Received Handler "activities": { "pick": { "filters": { "type": ["image/jpeg", "image/png"] }, "disposition": "inline", "returnValue": true, "href": "/index.html#pick" } }
- 40. Don’t forget to handle it! navigator.mozSetMessageHandler('activity', function(activityRequest) { var option = activityRequest.source; if (activityRequest.source.name === "pick") { // Do something to handle the activity if (picture) { activityRequest.postResult(picture); } else { activityRequest.postError("Unable to provide a picture"); } } });
- 42. How to start
- 46. API implementations • Camera • Contacts • Device • Device-motion • Geolocation • Orientation • Vibration
- 47. Free phone! http://j.mp/mozPFA Creative Commons: https://flic.kr/p/epEL3n
- 48. Simplicity…
- 49. Firefox Web Developer Tools
- 53. Creative Commons: http://j.mp/1gIdcPF To infinity, and beyond…
- 54. More Web APIs & features • Calendar API • FileHandle API Sync API • Keyboard/IME API WebRTC • HTTP-cache API • Peer to Peer API • Spellcheck API LogAPI • Resource lock API • UDP Datagram Socket API • WebNFC • WebUSB
- 55. When you’ll build your next app You know you’ll have the API you need using HTML5
- 56. Resources Firefox OS Simulator http://j.mp/fxosSimulator Firefox OS App Manager http://j.mp/fxosAppManager Mozilla Developer Network https://developer.mozilla.org StackOverflow forum http://j.mp/fxosStackOverflow Firefox OS Boilerplate http://j.mp/fxosBoilerplate
- 57. Planning to port or build a Firefox OS app? Please let me know!