84 lines
2.8 KiB
JavaScript
84 lines
2.8 KiB
JavaScript
|
|
/**
|
|
## Text Editing Example
|
|
Here, I will give a short overview on how to enable collaborative text editing with the
|
|
[PeerJs](http://peerjs.com/) Connector and the TextFramework Framework.
|
|
|
|
PeerJs is a Framework that enables you to connect to other peers. You just need the
|
|
user-id of the peer (browser/client). And then you can connect to it. In this example we will encode
|
|
the client-id to which this client shall connect, in the url.
|
|
It should look like this: http://../index.html?user_id
|
|
|
|
First you have to include the following libraries in your html file:
|
|
```
|
|
<script src="http://cdn.peerjs.com/0.3/peer.js"></script>
|
|
<script src="../../build/browser/Frameworks/TextFramework.js"></script>
|
|
<script src="../../build/browser/Connectors/PeerJsConnector.js"></script>
|
|
<script src="./index.js"></script>
|
|
```
|
|
Open [index.html](./index.html) in order to start collaboration.
|
|
*/
|
|
var yatta;
|
|
|
|
function init(){
|
|
/**
|
|
First create the connector - the underlaying communication protocol.
|
|
Here, we use the PeerJs connector. Its first parameter is the API key that you need to specify (see [website](http://peerjs.com/))
|
|
*/
|
|
|
|
/**
|
|
This will connect to the server owned by the peerjs team.
|
|
For now, you can use my API key.
|
|
*/
|
|
// var conn = {key: 'h7nlefbgavh1tt9'};
|
|
|
|
/**
|
|
This will connect to one of my peerjs instances.
|
|
I can't guaranty that this will be always up. This is why you should use the previous method with the api key,
|
|
or set up your own server.
|
|
*/
|
|
var conn = {
|
|
host: "terrific-peerjs.herokuapp.com",
|
|
port: "", // this works because heroku can forward to the right port.
|
|
// debug: true,
|
|
};
|
|
|
|
Y.createPeerJsConnector(conn, function(Connector, user_id){
|
|
/**
|
|
TextFramework is a shared text object. If you change something on this object,
|
|
it will be instantaneously shared with all the other collaborators.
|
|
*/
|
|
yatta = new Y.TextFramework(user_id, Connector);
|
|
|
|
/**
|
|
Get the url of this frame. If it has a url-encoded parameter
|
|
we will connect to the foreign peer.
|
|
*/
|
|
var url = window.location.href;
|
|
var peer_id = location.search
|
|
var url = url.substring(0,-peer_id.length);
|
|
peer_id = peer_id.substring(1);
|
|
|
|
/**
|
|
Set the shareable link.
|
|
*/
|
|
document.getElementById("peer_link").setAttribute("href",url+"?"+user_id);
|
|
|
|
/**
|
|
Connect to other peer.
|
|
*/
|
|
if (peer_id.length > 0){
|
|
yatta.connector.connectToPeer(peer_id);
|
|
}
|
|
|
|
/**
|
|
Bind yatta to the textfield.
|
|
|
|
The .bind property is a method of the Word class. You can also use it with all the other Frameworks in Yatta (e.g. Json).
|
|
*/
|
|
var textbox = document.getElementById("textfield");
|
|
yatta.bind(textbox);
|
|
});
|
|
}
|
|
window.onload = init
|