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changed few things in the example

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Kevin Jahns 2014-08-24 02:21:49 +02:00
parent 86849ae8b1
commit f444b25ac9
3 changed files with 24 additions and 17 deletions
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2
examples/PeerJs-Json/README.md
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@ -1,4 +1,4 @@
## PeerJs + JSON Example ## PeerJs + JSON Tutorial
Here, I will give a short overview on how to enable collaborative json with the Here, I will give a short overview on how to enable collaborative json with the
[PeerJs](http://peerjs.com/) Connector and the JsonYatta Framework. Open [PeerJs](http://peerjs.com/) Connector and the JsonYatta Framework. Open
[index.html](http://dadamonad.github.io/Yatta/examples/PeerJs-Json/index.html) in your Browser and [index.html](http://dadamonad.github.io/Yatta/examples/PeerJs-Json/index.html) in your Browser and

2
examples/PeerJs-Json/index.html
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@ -9,7 +9,7 @@
<script src="./index.js"></script> <script src="./index.js"></script>
</head> </head>
<body> <body>
<h1> Text Editing Demo</h1> <h1> PeerJs + Json Tutorial</h1>
<p> Collaborative Json editing with <a href="https://github.com/DadaMonad/Yatta/">Yatta</a> <p> Collaborative Json editing with <a href="https://github.com/DadaMonad/Yatta/">Yatta</a>
and <a href="http://peerjs.com/">PeerJs</a> (WebRTC). </p> and <a href="http://peerjs.com/">PeerJs</a> (WebRTC). </p>

35
examples/PeerJs-Json/index.js
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@ -2,7 +2,7 @@
/** /**
## PeerJs + JSON Example ## PeerJs + JSON Example
Here, I will give a short overview on how to enable collaborative json with the Here, I will give a short overview on how to enable collaborative json with the
[PeerJs](http://peerjs.com/) Connector and the JsonYatta Framework. Open [PeerJs](http://peerjs.com/) Connector and the Json Framework. Open
[index.html](http://dadamonad.github.io/Yatta/examples/PeerJs-Json/index.html) in your Browser and [index.html](http://dadamonad.github.io/Yatta/examples/PeerJs-Json/index.html) in your Browser and
use the console to explore Yatta! use the console to explore Yatta!
@ -28,10 +28,11 @@ Y.createPeerJsConnector({key: 'h7nlefbgavh1tt9'}, function(Connector, user_id){
/** /**
You can also specify your own user_id with peerjs. You can also specify your own user_id with peerjs.
But you have to make sure that no other client associated to your API-key has the same user_id. But then you have to make sure that no other client associated to your API-key has the same user_id.
```
Y.createPeerJsConnector("unique_id", {key: 'h7nlefbgavh1tt9'}, function(Connector, user_id){
```
*/ */
// Y.createPeerJsConnector("unique_id", {key: 'h7nlefbgavh1tt9'}, function(Connector, user_id){
/** /**
### Yatta ### Yatta
@ -49,7 +50,7 @@ But you have to make sure that no other client associated to your API-key has th
See [TextEditing](../../examples/TextEditing/) for a nice example See [TextEditing](../../examples/TextEditing/) for a nice example
on how to do that with urls. on how to do that with urls.
*/ */
console.log("This is your user-id: "+user_id); console.log("Copy your user-id: " + user_id);
// yatta.connector.connectToPeer(peer_user_id); // yatta.connector.connectToPeer(peer_user_id);
@ -75,9 +76,9 @@ But you have to make sure that no other client associated to your API-key has th
console.log(yatta.val('mutable_string').val() === "eXXXxt"); // true console.log(yatta.val('mutable_string').val() === "eXXXxt"); // true
/** /**
Did you recognize that we have to use anoter `.val()` for mutable strings? Did you recognize that we use anoter `.val()` for mutable strings?
Thats because yatta.val('mutable_string') is of type WordType. Thats because `yatta.val('mutable_string')` is of type *WordType*.
Since we implemented `toString` in this for WordType's, you can use it like a string: Since WordType implements `toString`, you can use it like a string:
*/ */
console.log("" + yatta.val("mutable_string") === "eXXXxt") // true, concatenating it with a string will implicitly invoke toString() console.log("" + yatta.val("mutable_string") === "eXXXxt") // true, concatenating it with a string will implicitly invoke toString()
@ -93,7 +94,7 @@ But you have to make sure that no other client associated to your API-key has th
console.log(yatta.val('new_string') === "string"); // true console.log(yatta.val('new_string') === "string"); // true
/** /**
yatta is chainable: Yatta is [chainable](http://schier.co/post/method-chaining-in-javascript):
*/ */
yatta.val('a', 4).val('b',5); yatta.val('a', 4).val('b',5);
console.log(yatta.val('a') === 4); // true console.log(yatta.val('a') === 4); // true
@ -108,12 +109,13 @@ But you have to make sure that no other client associated to your API-key has th
/** /**
Lists are always immutable. Lists are always immutable.
*/ */
yatta.val('list', [1,2,3]); yatta.val('list', [0,1,2]);
console.log(yatta.val('list')[2] === 3); // true console.log(yatta.val('list')[2] === 2); // true
/** /**
### Check Types ### Check Types
Certainly you want to check types! Certainly you want to check types!
You get the type of an YattaType with the `.type` property.
Here, we create a function that parses a Yatta type to a string. Here, we create a function that parses a Yatta type to a string.
*/ */
@ -177,7 +179,7 @@ But you have to make sure that no other client associated to your API-key has th
/** /**
### Experimental method ### Experimental method
But there is a much more convenient way! Nah.. this is only for the cool kids.
*/ */
console.log(yatta.value.list[2] === 3) // true console.log(yatta.value.list[2] === 3) // true
yatta.value.list = [3,4,5] yatta.value.list = [3,4,5]
@ -186,6 +188,10 @@ But you have to make sure that no other client associated to your API-key has th
console.log(yatta.value.object.c === 4) // true console.log(yatta.value.object.c === 4) // true
/** /**
How did I do that? ^^
In Javascript it is possible set setter- and getter- for properties. This is
why this method feels much more natural.
The downside is that you are only allowed to overwrite existing properties. The downside is that you are only allowed to overwrite existing properties.
*/ */
yatta.value.newProperty = "Awesome" yatta.value.newProperty = "Awesome"
@ -198,7 +204,7 @@ But you have to make sure that no other client associated to your API-key has th
console.log(yatta.value.newProperty === "Awesome") // true, it's awesome ;) console.log(yatta.value.newProperty === "Awesome") // true, it's awesome ;)
/** /**
This is stupid! I need to create new properties! This is stupid! I don't want to overwrite all my existing properties!
Very well.. The solution is that we merge yatta.value with the new assignment. Very well.. The solution is that we merge yatta.value with the new assignment.
For example: assuming we want to overwrite yatta.value with some object o. For example: assuming we want to overwrite yatta.value with some object o.
Then these two rules apply: Then these two rules apply:
@ -227,6 +233,7 @@ But you have to make sure that no other client associated to your API-key has th
console.log(yatta.value.newProperty !== "Awesome") // true, still not awesome.. console.log(yatta.value.newProperty !== "Awesome") // true, still not awesome..
/** /**
Please also read [JsonWrapper](https://rawgit.com/DadaMonad/Yatta/master/doc/class/JsonWrapper.html) Please also read [JsonWrapper](https://rawgit.com/DadaMonad/Yatta/master/doc/class/JsonWrapper.html).
I really want to hear what you think about this method :)
*/ */
}); });