Contribution Depot (jME3)

Run a Chrome Window Within jME3 (Berkelium Integration) (24 posts)

Topic tags: Berkelium, jME3

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sbook255p said 7 months, 2 weeks ago:

@normen, @pspeed, and I were talking about this a week or so back and a few days ago I started thinking again how cool it would be. So here it is, a Berkelium window running within jME3. Mouse coordinates finally line up properly within the texture, which was my personal goal before putting a post on the forum about it

Performance with one window is quite nice, I can get between 2600 and 3200 frames a second. Working on this did bring up some speed questions about the AWTLoader, however as using that without concurrency gave ~50 fps while my own small implementation achieved ~120 (but alas flipping the Y-axis of the image became a huge pain so I gave in and used the AWTLoader)

I’m planning on keeping up development with this, including some sort of mechanism for calling delegate methods in Java from HTML widgets (effectively making it an extremely simple UI system that allows GUI’s with HTML/CSS and JavaScript.. should be pretty cool!)

Unfortunately its Windows only right now but I’m working on building Linux and Mac natives of the Berkelium-Java wrapper.

Berkellium-JME3

Berkelium JNI Binding

The screen recorder kind of killed performance

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Sploreg200p said 7 months, 2 weeks ago:

You madman! That’s pretty cool Skye.
Long grind session in a game? Just pop open an in-game browser while you wait

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tralala2 said 7 months, 2 weeks ago:

cool, will it allow to view youtube videos?
and can it run javascript ?

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sbook255p said 7 months, 2 weeks ago:

cool, will it allow to view youtube videos?
and can it run javascript ?

Yes, it’ll do JavaScript, it uses Chrome to render. As for YouTube, it would have to be one that they’ve already converted to work within HTML5. In theory, Vimeo should work as well

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madjack487p said 7 months, 2 weeks ago:

It [Berkelium] takes advantage of Chromium’s multiprocess rendering to isolate browsers from each other and can render to any buffer in memory. The user of the library can inject input and javascript code into web pages to control them, as well as listen for events generated by the page such as navigation events, load sequence events and paint events. Berkelium provides a small API for embedding a fully functional browser into any application.

Edit: taken from here.

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anthyon36p said 7 months, 2 weeks ago:

hi there…

i’m glad that i do not have to implement it myself after my awesomium port. I have some question though:

1. does it support transparent page backgrounds (html and body)?

2. can I inject my Java objects in the api so my javascripts can call them like any other builtin objects (window, navigator, etc)?

3. is there a way to add plugins to the brekelium instance (flash, etc)?

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sbook255p said 7 months, 2 weeks ago:
1. does it support transparent page backgrounds (html and body)?

This was next on my list of things to do, right after your number 2 item I honestly figured that the Awesomium demo video was using a color keying system similar to a green screen, I didn’t even know HTML supported transparency!

2. can I inject my Java objects in the api so my javascripts can call them like any other builtin objects (window, navigator, etc)?

I haven’t tried it yet, but I’d say this method stub looks very promising:
```
public void onJavascriptCallback(Window win, String url, String funcName);
```
3. is there a way to add plugins to the brekelium instance (flash, etc)?

There is “limited” support, Flash being the best supported. My guess though is that you’d need to ‘install’ the plugin before compiling the native wrapper. I’m still working on getting the supplied build script working for the JNI binding though
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anthyon36p said 7 months, 2 weeks ago:
wow great

1. yes, you can set the body background to transparent and it should not be displayed in berkelium only the contents (like i did with awesomium: http://novyon.net/gameui/screenshots/PPXClient1.png it’s a fullscreen page, with a div in the center)

2. i guess it’s not the same. In awesomium I can do the following:
a. create a javascript object by declaring it with a name
b. adding java callback methods to this object

like:
```
public void addObjectCallback(String name, Object object) {
		this.webView.createObject(name);
		for (Method m : callback.getClass().getMethods()) {
			this.webView.setObjectCallback(name, m.getName());
		}
}

addObjectCallback("jme", new JmeSystem()); // where JmeSystem is my own class with one method: exit();

// then I can make a simple javascript call:
jme.exit(); // and it will call your method on a given java object
```
3. hmm.. I had problems with their build script, that’s why I sticked mainly with awesomium, and built my own wrapper based on someone’s previous attempt.
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nehon590p said 7 months, 2 weeks ago:

wow….a neat way to use this would be for testing.
testing and reporting issues in the google issue tracker live!!!
ok it just save an alt+tab….but that’s pretty damn cool!!!!
I would thumb you up if it was working….

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sbook255p said 7 months, 2 weeks ago:

testing and reporting issues in the google issue tracker live!!!

That would be very, very cool. I’m having some trouble getting Google’s login fields to pick up my mouse though. I don’t know why, but it seems to be happening mostly on Google’s pages ::confused::

I’m also having a weird issue where the mouse seems to update more consistently when its being moved down. You wouldn’t think it, but moving the mouse is made extremely difficult by this!

I would thumb you up if it was working….

I should’ve waited!!!!!

3. hmm.. I had problems with their build script, that’s why I sticked mainly with awesomium, and built my own wrapper based on someone’s previous attempt.

A number of properties in the build script weren’t being set. Now I can’t get ANT to pick up my JAVA_HOME

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glaucomardano252p said 7 months, 2 weeks ago:

Good work dude. Also, thank you for teach us how to find the thread “Getting jMonkeyEngine SDK into Ubuntu Apps repository” ;D.

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sbook255p said 7 months, 2 weeks ago:

Also, thank you for teach us how to find the thread “Getting jMonkeyEngine SDK into Ubuntu Apps repository” ;D.

Hint, hint, hint I was really annoyed that I couldn’t get the YouTube video on the Ubuntu website to play, it worked 3 or 4 times in a row and then magically started misbehaving when I was ready to record!

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sbook255p said 7 months, 2 weeks ago:

Just an update:

I emailed the developer of the Java wrapper over the weekend and got a response from him this morning. They were actually hoping to have this in jME eventually, so some great news there!

@anthyon JavaScript calls and callbacks indeed work, so its a matter of me using the API correctly.

Building on OS X
I modified the build script to run on OS X, but ran into problems linking my 64-bit native library to the, only available, 32-bit Berkelium build. I was working on doing a 64-bit Berkelium build but ran into problems building Chromium under 10.7 Lion. That said, I was able to successfully build a 32-bit version of the library Berkelium-Java wrapper, but without an active 32-bit JVM for OS X its tough to test

Has anyone worked with the forthcoming OpenJDK release at all? My hope is that they’ll be doing both 32 and 64-bit builds

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drieks1p said 7 months, 2 weeks ago:

hi,

my brother and me are the developers of Berkelium Java.

Berkelium supports Java -> JavaScript and JavaScript -> Java calls. Also youtube and transparent page backgrounds are working.

I currently have only little time but will help as best i can

regards
dennis

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sbook255p said 7 months, 2 weeks ago:

Hi Dennis, thanks for jumping in

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