Chromium Blog
News and developments from the open source browser project
Google @ GDC Online Oct. 10th-12th
Wednesday, August 31, 2011
Cross posted at the
Google Code blog
This year at the
Game Developers Conference
(GDC) Online we have organized a
Developer Day
on Oct. 10th full of Google information for game developers. It will feature hardcore technical information on Google products and platforms delivered by Google
engineers and developer advocates
. We’ll discuss the latest projects we’re working on and how our online technologies can help you better create, distribute, and monetize games that reach a larger audience than ever before. We’ll present everything from how developers can build hardware accelerated 3D games for the browser with WebGL to the game framework used to bring Angry Birds to the Web.
In addition to the Developer Day, we will also have a booth on the Expo floor on Oct. 11th-12th where we’ll have representatives from the
Chrome Web Store
,
Native Client
, WebGL,
App Engine
, Google+,
In-App Payments
,
Google TV
, and
AdSense
/
AdMob
demoing technologies and platforms for game developers. Come by booth 503 to try out Google products and ask questions, or hang out in our Google TV lounge.
For more information on our presence at
GDC Online
, including session and speaker details, please visit
http://www.google.com/events/gdc/2011
. Hope to see you in Austin!
Not able to attend GDC? Check out
Google Game Developer Central
to get an overview of Google products and services that are particularly relevant to game developers.
Posted by Amy Walgenbach, Developer Marketing
Non-Admin Chrome Frame Reaches Stable Channel
Tuesday, August 30, 2011
A few months ago, we
introduced
Non-Admin Google Chrome Frame on the developer channel for testing. We deployed it to the beta channel two weeks ago and we are now bringing Non-Admin to the stable channel. Head over
here
to install it and let us know how it goes.
If you have installed the developer or beta channel version and wish to switch to the stable version, you'll need to uninstall Chrome Frame and then install via the above link. Note that the uninstall experience is smoothest if you close all Internet Explorer windows prior to uninstalling Chrome Frame.
In addition to Non-Admin Chrome Frame moving to the stable channel, we are rolling out a change to the default Chrome Frame installer; it will now run at Admin level by default and will fall back to Non-Admin mode if the user does not have the necessary permissions on their machine. This will allow all users to download a single installer that just works. This installer is available at the Chrome Frame
download page
.
As always, we welcome discussions in the Chrome Frame
Google group
and bug reports on Chromium’s
issue tracker
.
Posted by Greg Thompson, Software Engineer
Getting your app discovered in the Chrome Web Store with new promotional assets.
Thursday, August 25, 2011
Yesterday we made a small change in Chrome Web Store’s app upload flow: when you upload new apps and extensions to the
Chrome Web Store
, or edit one of your existing items, you'll be prompted to provide us with new promotional image assets. We are asking you for these assets so that we can highlight your apps and extensions in a brand new store layout that our team is working on.
What's new:
(Required) You’ll need to provide us with a large rectangular image to identify your app, in addition to assets you already provide - your app icon and at least one screenshot.
(Optional) You can provide us with an even larger rectangular image format as well.
What's different
The screenshot dimensions have grown larger with a wider aspect ratio.
The (optional) marquee image dimensions have also grown larger.
What's the same
The specification and dimensions for the icon file
To make things easier, we only require screenshots in the new dimensions going forward -- we'll automatically scale them as needed to make them visible in the current store layout. You can read the details about the new requirements on our
image guidelines page
. If you have any questions on these changes, feel free to reach us at our
discussion group
.
Posted by Shannon Guymon, Product Manager
Register now for New Game, the conference for HTML5 game developers
Thursday, August 25, 2011
Cross posted at the
Google Code blog
This post almost wasn’t written.
I’ve been a bit too busy playing and testing new browser-based games such as
Monster Dash
,
Angry Birds
, and the newly released
SONAR
. Bigger and better games are coming to the browser rapidly (and just wait until
Native Client with 3D lands in Chrome
), and it’s hard to keep up with the technology and scene. So what better way to bring everyone together to share stories and keep up to date than to hold a conference dedicated to HTML5 game development?
New Game
, the first North American conference for HTML5 game developers, is now open for
registration
. You are invited to join hundreds of HTML5 game developers for two days of technical sessions and case studies from developers and publishers who brought their games to the open web platform. The event will take place November 1-2, 2011 at the beautiful Yerba Buena Center for the Arts in San Francisco, CA.
This year, New Game looks at what is possible in the browser
today
. Sessions will focus on the technologies that have elevated the browser-based gaming experience, such as WebGL, Canvas, and JavaScript performance techniques. In addition, the conference will feature sessions exploring and analyzing lessons-learned from recent HTML5 game launches.
New Game is honored to have Rich Hilleman, EA’s Chief Creative Officer, keynote the event. The
schedule
also includes sessions from Mozilla, Spil, Opera, Google, Bocoup, GameSalad, Moblyng, and others. After the first day, we’ll network with our colleagues and share high scores at the New Game party, open to all registered attendees.
For more information on New Game, including session and speaker details, please visit
www.newgameconf.com
and follow
@newgameconf
for the latest news. Google, the premier sponsor, and conference director
Bocoup
invite you to take advantage of
early bird registration pricing
, available for a limited time.
The future of gaming is in your browser, so I’ll see you at New Game! Now if you’ll excuse me, it’s time to get back to my
SONAR
tab.
Posted by Seth Ladd, Developer Advocate
Native Client Brings Sandboxed Native Code to Chrome Web Store Apps
Thursday, August 18, 2011
Wouldn’t it be great if you could create web apps using your existing C and C++ code?
Native Client
lets you do just that, and it is now enabled for Chrome Web Store apps in Google Chrome’s
beta channel
.
Native Client apps live on the web platform, so you don’t need to create separate versions of your app for each operating system. Rather than relying on OS-specific APIs, Native Client apps use Pepper, a set of interfaces that provide C and C++ bindings to the capabilities of HTML5. This means that once you’ve ported your code to Native Client, it will work across different operating systems, and you only need to maintain one code base.
Today Native Client supports the Pepper APIs for 2D graphics, stereo audio, URL fetching, sandboxed local file access (
File API
), and asynchronous message passing to and from JavaScript. In future releases we will be adding support for hardware accelerated 3D graphics (OpenGL ES 2.0), fullscreen mode, networking (
WebSockets
and peer-to-peer connections), and much more. As new capabilities are added to HTML5 and Pepper, they will become available to Native Client.
This functionality does not come at the expense of security. To ensure that Native Client is as safe as JavaScript, Native Client code is isolated from the operating system by two nested security sandboxes: the
Native Client sandbox
and the
Chrome sandbox
. And unlike NPAPI plugins or ActiveX controls, Native Client apps do not have access to the underlying OS APIs.
We encourage you to start developing apps with Native Client. You can download the SDK and find tutorials, examples, API documentation, and our
FAQ
on the
Native Client site
. Once version 14 of Chrome hits stable channel, you’ll be able to upload your Native Client apps to the Chrome Web Store, where you can reach Chrome’s 160 million users.
The next milestone for Native Client is architecture independence:
Portable Native Client
(PNaCl) will achieve this by using
LLVM
bitcode as the basis for the distribution format for Native Client content, translating it to the actual target instruction set before running. Until then the Chrome Web Store will be the only distribution channel for Native Client apps. This will help us ensure that all Native Client apps are updated to PNaCl when it’s ready – and in the meantime avoid the spread of instruction set architecture dependent apps on the web. We’ll be providing updates on the progress of PNaCl on this blog.
Posted by Christian Stefansen, Product Manager
Connecting Web Apps with Web Intents
Thursday, August 4, 2011
In today’s browser ecosystem, web apps are completely disconnected or require the use of complicated APIs in order to make use of a third-party service, e.g., posting a comment to Twitter from your custom publishing domain. What if we could give sites the ability to leverage these services without any knowledge of the chosen service, except that it provides some set of predefined functionality?
Android OS addresses this problem with Intents, a facility for late run-time binding between components in the same or different applications. In the Intents system, the client application requests a generic action, e.g. share, and specifies the data to pass to the selected service application. The user is given a list of applications which have registered that they can handle the requested intent. The user-selected application is created in a new context and passed the data sent from the client, the format of which is predefined for each specific intent type.
We are hard at work designing an analogous system for the web: Web Intents. This web platform API will provide the same benefits of Android Intents, but better suited for web applications. When designing the system, we have first and foremost been interested in creating a simple, easy-to-use API. With Web Intents, you will be able to connect your web app to a service with as little as two lines of code! Chrome will perform the heavy lifting for you. As with Android, Web Intents documents an initial set of intent actions (edit, view, share, etc.) that likely cover the majority of use cases on the web today; however, as the web grows and sites provide more functionality, new intent actions will be added by services that document these intents, some more popular than others. To foster development and use of intents, we plan to create a site to browse existing intents and add new intents.
Consider an online photo storage site run by a cash-strapped startup: the developers don’t have the resources to add image editing abilities to their app, but they feel the site won’t be a hit without it. The Web Intent system will make it easy for them to offer this with little effort.
var intent = new Intent(Intent.EDIT, ‘image/png’, getImageDataURI());
window.navigator.startActivity(intent, loadEditedImage);
// This callback will be called when the service replies with the edited
// image data.
function loadEditedImage(data) {
var image = document.getElementById(‘image’);
setImageData(image, data);
}
When the user visits her favorite memegen service, the site will request registration to handle the EDIT intent for files of type ‘image/*’ using the following declaration:
<intent
action=”http://webintents.org/edit”
type=”image/*”
/>
When the user initiates the EDIT action, this service is presented to the user, along with other registered image editors. Once the user selects Meme Generator, the referenced site is opened in a new context and is able to load the image data from the intent payload:
var intent = window.intent;
memeImg.src = intent.data;
memegenForm.onsubmit = function() {
// Transform the image - meme it.
addMemeTaglines(memeImg, memeTopText, memeBottomText);
// Send the generated meme back to the client.
intent.postResult(getImageData(memeImg));
};
Once
postResult()
is called, the Meme Generator context is closed and the output data is sent back to the client via the callback passed to
startActivity()
.
Mozilla is also actively
exploring
this problem space. In fact we’re working closely with Mozilla engineers to unify our two proposals into one simple, useful API. Visit the
examples
page to try out the feature in any current browser. To explore using the API in your site, check out out the
JavaScript shim
, which provides an implementation of the API for browsers that have not implemented this feature. We are rapidly prototyping this feature, so check back soon for an announcement when Web Intents is available behind a flag in Chrome.
Posted by James Hawkins, Software Engineer
New WebSocket Protocol: Secure and Extensible
Monday, August 1, 2011
The WebSocket protocol specification is now largely stable, having solved previous
security concerns
. As such, we’ve updated Chromium to support the latest version (
draft-ietf-hybi-thewebsocketprotocol-10
) on the dev channel (14.0.835.2). Given that the specification is now in “last-call” and and no further breaking changes are expected, it should now be safe to use WebSockets for production application development.
Please note that the new protocol is incompatible with one which Chromium previously supported (
draft-ietf-hybi-thewebsocketprotocol-00
), so existing WebSocket-based services may break. Please upgrade your servers to ones which support HyBi 10. Existing JavaScript code still works once the protocol version used by the browser and server match.
The new protocol introduces some exciting new features like binary message support and compression support, but these are not quite ready yet in Chrome and will come shortly - hang tight!
See the specs and discussion at W3C and WHATWG (
spec
,
whatwg list
) and IETF (
spec
,
HyBi list
) for more detail about the new protocol.
We’re more than happy to hear your feedback, and encourage you to file any bugs you find on our
issue tracker
.
Posted by Takeshi Yoshino, Software Engineer
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