Bringing the Open Web & APIs to mobile devices with Firefox OS - Geek Meet
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Firefox OS uses HTML5, CSS, and JavaScript to build apps that run on mobile devices. Developers can create open web apps using these technologies along with app manifest files and by taking advantage of device APIs for features like notifications, vibration, and battery status. The OS supports both packaged and hosted apps and uses a permission system to control access to privileged APIs for functions like contacts, messaging, and telephony. Future plans include additional APIs for areas such as peer-to-peer connectivity, NFC, and WebRTC.
![{
"version": "1.0",
"name": "MozillaBall",
"description": "Exciting Open Web development action!",
"icons": {
"16": "/img/icon-16.png",
"48": "/img/icon-48.png",
"128": "/img/icon-128.png"
},
"developer": {
"name": "Mozilla Labs",
"url": "http://mozillalabs.com"
},
"installs_allowed_from": ["*"],
"appcache_path": "/cache.manifest",
"locales": {
"es": {
"description": "¡Acción abierta emocionante del desarrollo del Web!",
"developer": {
"url": "http://es.mozillalabs.com/"
}
},
"it": {
"description": "Azione aperta emozionante di sviluppo di
fotoricettore!",
"developer": {
"url": "http://it.mozillalabs.com/"
}
}
},
"default_locale": "en"
}](https://image.slidesharecdn.com/bringingtheopenwebapistomobiledeviceswithfirefoxos-geekmeet-130508040433-phpapp01/85/Bringing-the-Open-Web-APIs-to-mobile-devices-with-Firefox-OS-Geek-Meet-8-320.jpg)
![// Vibrate for one second
navigator.vibrate(1000);
// Vibration pattern [vibrationTime, pause,…]
navigator.vibrate([200, 100, 200, 100]);
// Vibrate for 5 seconds
navigator.vibrate(5000);
// Turn off vibration
navigator.vibrate(0);](https://image.slidesharecdn.com/bringingtheopenwebapistomobiledeviceswithfirefoxos-geekmeet-130508040433-phpapp01/85/Bringing-the-Open-Web-APIs-to-mobile-devices-with-Firefox-OS-Geek-Meet-32-320.jpg)
![// "external", "shared", or "default".
deviceStorage.type;
// Add a file - returns DOMRequest with file name
deviceStorage.add(blob);
// Same as .add, with provided name
deviceStorage.addNamed(blob, name);
// Returns DOMRequest/non-editable File object
deviceStorage.get(name);
// Returns editable FileHandle object
deviceStorage.getEditable(name);
// Returns DOMRequest with success or failure
deviceStorage.delete(name);
// Enumerates files
deviceStorage.enumerate([directory]);
// Enumerates files as FileHandles
deviceStorage.enumerateEditable([directory]);](https://image.slidesharecdn.com/bringingtheopenwebapistomobiledeviceswithfirefoxos-geekmeet-130508040433-phpapp01/85/Bringing-the-Open-Web-APIs-to-mobile-devices-with-Firefox-OS-Geek-Meet-45-320.jpg)
![{
"activities": {
"share": {
"filters": {
"type": ["image/png", "image/gif"]
}
"href": "sharing.html",
"disposition": "window"
}
}
}](https://image.slidesharecdn.com/bringingtheopenwebapistomobiledeviceswithfirefoxos-geekmeet-130508040433-phpapp01/85/Bringing-the-Open-Web-APIs-to-mobile-devices-with-Firefox-OS-Geek-Meet-59-320.jpg)
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Bringing the Open Web & APIs to mobile devices with Firefox OS - Geek Meet
- 1. Bringing the Open Web & APIs to mobile devices with Firefox OS
- 4. Using HTML5, CSS and JavaScript together with a number of APIs to build apps and customize the UI. Firefox OS
- 7. Develop Web App using HTML5, CSS, & Javascript1. Create an app manifest file2. Publish/install the app3.
- 8. { "version": "1.0", "name": "MozillaBall", "description": "Exciting Open Web development action!", "icons": { "16": "/img/icon-16.png", "48": "/img/icon-48.png", "128": "/img/icon-128.png" }, "developer": { "name": "Mozilla Labs", "url": "http://mozillalabs.com" }, "installs_allowed_from": ["*"], "appcache_path": "/cache.manifest", "locales": { "es": { "description": "¡Acción abierta emocionante del desarrollo del Web!", "developer": { "url": "http://es.mozillalabs.com/" } }, "it": { "description": "Azione aperta emozionante di sviluppo di fotoricettore!", "developer": { "url": "http://it.mozillalabs.com/" } } }, "default_locale": "en" }
- 10. Serve with Content-type/MIME type: application/x-web-app-manifest+json
- 13. Packaged vs. Hosted Apps
- 16. WebAPIs
- 18. Security Levels
- 19. 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
- 21. "permissions": { "contacts": { "description": "Required for autocompletion in the share screen", "access": "readcreate" }, "alarms": { "description": "Required to schedule notifications" } }
- 22. PERMISSIONS
- 24. 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
- 26. 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); }
- 27. NOTIFICATION
- 28. var notification = navigator.mozNotification; notification.createNotification( "See this", "This is a notification", iconURL );
- 30. // Portrait mode: screen.mozLockOrientation("portrait"); /* Possible values: "landscape" "portrait" "landscape-primary" "landscape-secondary" "portrait-primary" "portrait-secondary" */
- 31. VIBRATION API
- 32. // Vibrate for one second navigator.vibrate(1000); // Vibration pattern [vibrationTime, pause,…] navigator.vibrate([200, 100, 200, 100]); // Vibrate for 5 seconds navigator.vibrate(5000); // Turn off vibration navigator.vibrate(0);
- 33. WEB PAYMENTS
- 34. var pay = navigator.mozPay(paymentToken); pay.onsuccess = function (event) { // Weee! Money! };
- 36. var connection = window.navigator.mozConnection, online = connection.bandwidth > 0, metered = connection.metered;
- 37. DEVICEPROXIMITY
- 38. 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); });
- 40. window.addEventListener("devicelight", function (event) { // The level of the ambient light in lux console.log(event.value); });
- 41. 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); });
- 42. Device Storage API Browser API TCP Socket API Contacts API systemXHR PRIVILEGED APIS
- 44. var deviceStorage = navigator.getDeviceStorage("videos");
- 45. // "external", "shared", or "default". deviceStorage.type; // Add a file - returns DOMRequest with file name deviceStorage.add(blob); // Same as .add, with provided name deviceStorage.addNamed(blob, name); // Returns DOMRequest/non-editable File object deviceStorage.get(name); // Returns editable FileHandle object deviceStorage.getEditable(name); // Returns DOMRequest with success or failure deviceStorage.delete(name); // Enumerates files deviceStorage.enumerate([directory]); // Enumerates files as FileHandles deviceStorage.enumerateEditable([directory]);
- 46. var storage = navigator.getDeviceStorage("videos"), cursor = storage.enumerate(); cursor.onerror = function() { console.error("Error in DeviceStorage.enumerate()", cursor.error.name); }; cursor.onsuccess = function() { if (!cursor.result) return; var file = cursor.result; // If this isn't a video, skip it if (file.type.substring(0, 6) !== "video/") { cursor.continue(); return; } // If it isn't playable, skip it var testplayer = document.createElement("video"); if (!testplayer.canPlayType(file.type)) { cursor.continue(); return; } };
- 47. CONTACTS API
- 48. var contact = new mozContact(); contact.init({name: "Tom"}); var request = navigator.mozContacts.save(contact); request.onsuccess = function() { console.log("Success"); }; request.onerror = function() { console.log("Error") };
- 49. WebTelephony WebSMS Idle API Settings API Power Management API Mobile Connection API WiFi Information API WebBluetooth Permissions API Network Stats API Camera API Time/Clock API Attention screen Voicemail CERTIFIED APIS
- 50. WEBTELEPHONY
- 51. // Telephony object var tel = navigator.mozTelephony; // Check if the phone is muted (read/write property) console.log(tel.muted); // Check if the speaker is enabled (read/write property) console.log(tel.speakerEnabled);
- 52. // Place a call var cal = tel.dial(“123456789”);
- 53. // Receiving a call tel.onincoming = function (event) { var incomingCall = event.call; // Get the number of the incoming call console.log(incomingCall.number); // Answer the call incomingCall.answer(); }; // Disconnect a call call.hangUp(); // Iterating over calls, and taking action depending on their changed status tel.oncallschanged = function (event) { tel.calls.forEach(function (call) { // Log the state of each call console.log(call.state); }); };
- 54. WEBSMS
- 55. // SMS object var sms = navigator.mozSMS; // Send a message sms.send("123456789", "Hello world!");
- 56. // Recieve a message sms.onreceived = function (event) { // Read message console.log(event.message); };
- 57. WEB ACTIVITIES
- 59. { "activities": { "share": { "filters": { "type": ["image/png", "image/gif"] } "href": "sharing.html", "disposition": "window" } } }
- 60. var activity = new MozActivity({ name: "view", data: { type: "image/png", url: ... } }); activity.onsuccess = function () { console.log("Showing the image!"); }; activity.onerror = function () { console.log("Can't view the image!"); };
- 61. var register = navigator.mozRegisterActivityHandler({ name: "view", disposition: "inline", filters: { type: "image/png" } }); register.onerror = function () { console.log("Failed to register activity"); }
- 62. navigator.mozSetMessageHandler("activity", function (a) { var img = getImageObject(); img.src = a.source.url; // Call a.postResult() or a.postError() if // the activity should return a value });
- 64. Future APIs
- 66. 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
- 67. Web Apps from Mozilla
- 69. Dialer Contacts Settings SMS Web browser Gallery Video Player Music Player E-mail (POP, IMAP) Calendar Alarm Clock Camera Notes First Run Experience Notifications Home Screen Mozilla Marketplace System Updater Localization Support
- 71. https://hacks.mozilla.org/2013/01/hacking-gaia-for-firefox- os-part-1/
- 72. Get started
- 75. WebRTC
- 78. var video = document.querySelector('video'); navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia; window.URL = window.URL || window.webkitURL || window.mozURL || window.msURL; // Call the getUserMedia method with our callback functions if (navigator.getUserMedia) { navigator.getUserMedia({video: true}, successCallback, errorCallback); } else { console.log('Native web camera streaming (getUserMedia) not supported in this browser.'); // Display a friendly "sorry" message to the user }
- 79. function successCallback(stream) { // Set the source of the video element with the stream from the camera if (video.mozSrcObject !== undefined) { video.mozSrcObject = stream; } else { video.src = (window.URL && window.URL.createObjectURL(stream)) || stream; } video.play(); }
- 80. Getting help