Can I use include in actionscript in some form?
var somevar = include "file.json";
Where "file.json" contains JSON data
It's not this simple, but possible. First, you have to embed a JSON file as is:
[Embed(source = 'file.json', mimeType='application/octet-stream')]
private static const YourJSON:Class;
Then, to get whatever is embedded (a String, a Bitmap, an SWF), you need to instantiate a variable with this type.
var somevar:String=new YourJSON();
Then you need to parse the JSON, the correct syntax for this varies by JSON and parsing library (this part is mainly determined by your Flash player target). RafH's answer has a syntax for an array and (IIRC) FP10 compatible library.
Also may want use ASC 2.0.
(from here)
New syntax allows you to use:
var h:Object = include 'conf.json'; // where conf.json contains correct JSON
No, include doesnt return a value and includes are done at compile time, so if the content of the include file change, you need to recompile the swf.
Not sure about you want to do, but it seems like loading / parsing an external JSON data file would be a better approach to look for.
Here is a good example : http://snipplr.com/view/56283/
Related
I want the contents of d.ts files to converted to json format i.e. I want the skeleton of functions in d.ts files to be shown in json or as an abstract syntax tree. I want to know how to proceed in order to achieve this. In a nutshell, I just want the existence of that particular function to be shown in the json file.
You basically use the typescript compiler api / Program to get a SourceFile and the use ts.forEachChild to visit all of its children.
More
Docs : https://basarat.gitbook.io/typescript/overview/ast/ast-tip-children
Could someone explain to me why in GWT you cannot convert a client/shared pojo (that implements Serializable) into a JSON object without jumping through a load of hoops like using the AutoBeanFactory (e.g GWT (Client) = How to convert Object to JSON and send to Server? ) or creating javascript overlay objects (and so extends JavaScriptObject)
GWT compiles your client objects into a javascript object, so why can't it then simply convert your javascript to JSON if you ask it to?
The GWT JSON library supplied only allows you to JSONify java objects that extend JavaScriptObject
I am obviously misunderstanding something about GWT since a GWT compiles a simple java POJO into a javascript object and in javascript you can JSON.stringify it into JSON so why not in GWT?
GWT compiles your app, it doesn't just convert it. It does take advantage of the prototype object in JavaScript to build classes as it needs, usually following your class hierarchy (and any GWT classes you use), but it makes many other changes:
Optimizations:
Tightens up types - if you refer to something as List, but it can only be an ArrayList, it rewrites the type declarations. This by itself doesnt give much, but it lets other steps do better work, such as
Making methods static - if nothing ever overrides ArrayList.add, for example, this will turn any calls it can prove are to ArrayList.add into a static call, preventing the need for dynamic dispatch, and allowing the 'this' string in the final JS to be replaces with a shorter arg name. This will prevent a JS object from having a method you expect it to have.
Inline Methods - if a method is simple enough, and is called in few enough places, the compiler might remove the method entirely, since it knows all places where it is called. This will directly affect your use case.
Removes/Inlines unreferenced fields - if you read to a field but only write it once, it will assume that the original value is a constant. If you don't read it, there is no reason to assign it. Values that the compiler can't tell will ever be used don't need to be using up space in the js and time in the browser. This also will directly affect treating gwt'd Java as JS.
After these, among others, the compiler will rename fields, arguments, and types to be as small as possible - rarely will a field or argument be longer than 1 character when this is complete, since those are most frequently used and have the smallest scope, so can be reused the most often by the compiler. This too will affect trying to treat objects as JSON.
The libraries that allow you to export GWT objects as JSON do so by making some other assumption.
JavaScriptObject (JSO) isn't a real Java object, but actually represents a JavaScript instance, so you can cast back and forth at will - the JSNI you write will emerge relatively unoptimized, as the compiler can't tell if you are trying to talk to an external library.
AutoBeans are generated to assume that they should have the ability to write out JSON, so specific methods to encode objects are written in. They will be subject to the same rules as the other Java that is compiled - code that isn't used may be removed, code that is only called one way might be tightened up or inlined.
Libraries that can export JS compile in Java details into the final executable, making it bigger, but giving you the ability to treat these Java objects like JS in some limited way.
One last point, since you are talking both about JSON and Javascript - Some normal JS isn't suitable for writing out as JSON. Date objects don't have a consistent way to serialize that is recognized by JSON. Non-tree object graphs can't be serialized:
var obj = {};
obj.prop = {};
obj.prop.obj = obj;
Autobeans come with a built in checker for these circular references, and I would hope the JSO serialization does as well.
I'm writting an application in Sencha-Touch 1.1 and I want to add localization to strings.
I've thought (but not implemented) of two ways.
Create seperate JSON files for each language (en-US.json, el-GR.json
etc) and use a proxy and a store to load the data, changing each
time the proxy url (json file destination). The problem is that I don't know how to extract the data from the store afterwards.
Create a global JSON object which then I inflate (parse the json file
and turn it into an object). The problem here is that I cannot seem to find a way to parse a JSON file without using a reader/proxy combo.
Is there any optimal solution for localizing strings in sencha-touch?
A common approach is to extract all of your strings into class level properties and have separate locale files which override these classes and their string properties.
For example, if I had a panel like this:
MyApp.MyPanel = Ext.extend(Ext.Panel, {
myPanelContent: 'This is your text to be translated...',
initComponent: function(){
Ext.apply(this, {
html: this.myPanelContent
});
MyApp.MyPanel.superclass.initComponent.call(this)
}
});
And then you would have a locale file along the lines of:
Ext.override(MyApp.MyPanel, {
myPanelContent: 'This is a translation of my text to another language'
});
You can then either load the correct locale file when your app is loaded (after the views themselves have been loaded) or dynamically load the locale files during runtime (this would require logic to update each of the views with the current value).
Hope this makes sense, give me a shout if it doesn't!
Stuart
In AS3, I want lo load a file text with URLLoader. In the file text I have the following string:
{a:1,b:"string",c:["one","two"]}
Is it possible (once loaded) to convert it to an Object?
There is no intrinsic deserializer built into the language, no. But if your text file sticks to the JSON standard, then you could use a JSON parser to do the conversion for you: http://code.google.com/p/as3corelib/source/browse/#svn%2Ftrunk%2Fsrc%2Fcom%2Fadobe%2Fserialization%2Fjson
Or, if you cannot adhere to JSON, you could always write your own deserializer.
What you need is to eval the string to create the object.
This is done natively in javascript and AS2. AS3 however does not support this function.
But all is not lost. The people at Hurlant have created a library that does this "almost" as good as native JavaScript.
Here is a good example.
And another library example using d.eval
I would like to point out though that if you have accept to the source of the object string that you create a JSON object out of it. The JSON libraries are usually much easier and more reliable to use then the libraries that do Eval.
Your string is a sting with JSON format. Use JSONDecoder to decode it to an Object, like this:
var dc:JSONDecoder = new JSONDecoder("{a:1,b:'string',c:['one','two']}");
var ob:Object = dc.getValue();
I am creating a Brightcove plugin. The documentation implies that if you need pass in data to your plugin that you need to do that by attaching flashvars to the swf url. (example: myPlugin.swf?myVar=foo&yourVar=bar )
Is there another way to pass in vars? I want to be able to pass in an array of objects, each which contain objects as their own into my plugin.
If there isn't another way, how do I do that with a flash var string?
Ideally, I'd like to be able to use the BEML paradigm to pass in various XML style nodes and then parse those into classes.
BEML is only to style your player and to attach modules/plugins.
If you download their GoogleAnalytics example.
You can build your plugin off that, and also this is how I was able to use Flashvars with that particular plugin:
myVar = this._bcStage.root.loaderInfo.parameters.flashVar;
I needed the _bcStage in order to get access to the HTML.