Hands on code

• Web Activites
• Notifications API
• ... a real developer preview

Web activities

Today we will learn how to use them,

but as well how to define them and offer our services to other apps

Notifications API

How we can use notifications in Firefox OS

Tips and tricks (some of them proper hacks)

Simple Push API

Push notifications for the win!

I mean, for the WEB!

Web Activities

Leverage some work to other apps!

Use them to execute tasks that other apps know how to do better than you

Pretty simple format

verb

filter (optional)

parameters (optional)

BOOM!

full and better definition

already integrated in Gaia

Hands on code!

Let's take a look to an example application

https://github.com/arcturus/firefox-os-webactivities

Desktop Notifications

_{... something weird in this notifications ...}

How we do use them?

Pretty simple API

              
              notification createNotification(
                in DOMString title,
                in DOMString description,
                in DOMString iconURL Optional
              );
            
            

That requires some permissions

              
              "permissions": {
                  "desktop-notification":{}
              }
            
          

And provides some actions

              
          notification.show();
          notification.onclick = function () { // do something cool };
          notification.onclose = function () { // do something cooler };
            
          

And again a system message to wake us up

              
        window.navigator.mozSetMessageHandler('notification', 
           function onNotification(notification) {
              ...
           });
        });
              
            

Example

https://github.com/arcturus/firefox-os-notifications

Push Notifications

Ready for version 1.1

But we can start playing with them!

https://developer.mozilla.org/en-US/docs/WebAPI/Simple_Push

Simple Push API

First draft available: https://developer.mozilla.org/en-US/docs/WebAPI/Simple_Push

Named like that because:

It's Simple

It does Push

... and it's and API

Pretty easy to use

Register to receive notifications

              
       var req = navigator.push.register();
  
      req.onsuccess = function(e) {
        var endpoint = req.result;
        console.log("New endpoint: " + endpoint );
      }

      req.onerror = function(e) {
        console.log("Error getting a new endpoint: " + JSON.stringify(e));
      }
              
            

Pretty easy to use

Listen to system messages

              
      window.navigator.mozSetMessageHandler('push', function(e) {
        console.log('My endpoint is ' + e.pushEndpoint);
        console.log('My new version is ' +  e.version);
      });
              
            

Pretty easy to use

You will require some permissions and system message definitions in your manifest

              
                      "messages": [
                         { "push": "/index.html" }
                      ],
                      "permissions": {
                        "push": {}
                      }
              
            

Take a look to the example

https://github.com/arcturus/firefox-os-simplepush

Thank you so much!

Folow me: @mepartoconmigo

Get the slides

http://bit.ly/10DauqD

Get the examples

https://github.com/arcturus/firefox-os-webactivities

https://github.com/arcturus/firefox-os-notifications

https://github.com/arcturus/firefox-os-simplepush