MatrixAdapt | Logiciel de gestion d'Entreprise, Création et référencement des sites web

Seo Master present to you: By Steven Saviano, Software Engineer

This post is one in a series that previews Google I/O, our biggest developer event in San Francisco, May 28-29. Over the next two months, we'll be highlighting sessions and speakers to give Google Code blog readers a better sense of what's in store for you at the event. - Ed.

Being a UI engineer, I usually expect the features I implement to have a little bit more visual interaction than a little green icon. However, while my team and I were implementing Google Docs Offline, the challenge was just that: how make the offline experience work seamlessly while just adding one icon.



Building Docs Offline was quite a challenge, and we pushed Gears to its limits to accomplish it. To give an idea of some of the complexities, Google Docs is one application that is comprised of 3 editors (documents, spreadsheets, and presentations) and 1 file management UI running across two domains (docs.google.com and spreadsheets.google.com). The domain challenges alone were significant challenges in our design - we are fully utilizing multiple cross-domain workers to synchronize documents, capture resources, and authenticate users.

Oh yeah, and did I mention that any of the servers can be running any version of the code and fall over at anytime?

Getting all of this to "just work" for users was tough, but necessary for a great user experience.

Wondering how you can take your applications offline? I'll be discussing all these issues in-depth at this year's Google developer conference, Google I/O. Come by and learn how to get your app its very own little green syncing icon.2013, By: Seo Master

Seo Master present to you: By Marc Cohen, Google Cloud Platform team

Cross-posted with the Google App Engine blog

Starting today, Google Compute Engine is available to all customers who sign up for our Gold Support package. We’re also happy to announce a 4% reduction on all Compute Engine pricing.

In the nine months since announcing Compute Engine, customers have been using Google’s Infrastructure as a Service product and giving us valuable feedback. Sebastian Stadil of Scalr wrote, in a recent review:

“Google Compute Engine is not just fast. It’s Google fast. In fact, it’s a class of fast that enables new service architectures entirely.”

We’re happy to hear that, because one of our main goals in building Compute Engine is to enable a new generation of applications with direct access to the capabilities of Google’s vast computing infrastructure.

Based on user feedback, we’ve added a number of major features including:

• The option to boot from persistent disks mounted as the root file system, persistent disk snapshots, the ability to checkpoint and restore the contents of network resident persistent disks on demand, and the ability to attach and detach persistent disks from running instances.
• An improved administration console, the Google Cloud Console (preview), which allows you to administer all your Google Cloud Platform services via a unified interface. Here’s a screenshot of the new Cloud Console in action:
  
  
• Five new instance type families (diskless versions of our standard instance types, plus diskful and diskless versions of high-memory and high-cpu configurations), with 16 new instance types.
• Two new supported zones in Europe, which provide lower latency and higher performance for our European customers. We’ve also made it easy to migrate virtual machine instances from one zone to another via an enhancement to our gcutil command line tool.
• An enhanced metadata server, with the ability to support recursive queries, blocking gets and selectable response formats, along with support for updating virtual machine tags and metadata on running instances (which enables dynamic reconfiguration scenarios).

While we've been hard at work developing new features, we've also had the opportunity to play. Check out the amazing World Wide Maze Chrome Experiment, developed by the Chrome team in Japan. This game converts any web site of your choice into an interactive, three dimensional maze, navigated remotely via your smartphone. Compute Engine virtual machines run Node.js to manage the game state and synchronization with the mobile device, while Google App Engine hosts the game’s web UI. This application provides an excellent example of the new kinds of rich, high performance back end services enabled by Google Cloud Platform.

With today’s announcement, we look forward to welcoming many new customers, and bringing exciting new applications to Google Cloud Platform!

Marc Cohen is a Developer Programs Engineer focusing on helping developers get the most out of Google’s advanced cloud computing technologies. He has over 25 years of experience designing and building reliable, distributed systems in the telecommunications industry. A Seattle resident, Marc enjoys programming, indie pop/rock music, blogging and teaching.

Posted by Ashleigh Rentz, Editor Emerita

2013, By: Seo Master

Seo Master present to you:
This post is by Roland Steiner of the Chrome Team. Roland works mainly on layout and rendering for Chrome and WebKit. An Austrian native, Roland has ventured far and made Tokyo his second home. -scottk

Many web applications allow users not just to edit plain text, but also to embellish it – making it bold or underlined, adding bulleted lists or images. For example, think of online document or blog editors, or rich e-mail apps. JavaScript provides various APIs you can use to implement these apps.

Unfortunately, while these APIs are largely defined the same in modern browsers, the results often differ. To document the current state of all this, we have set up a new rich text editing test suite as part of the larger browserscope framework.

Let’s look at how a region of text, such as a <div>, can be marked as editable by adding the contenteditable attribute:

<div contenteditable="true"> ...some content... </div>


You can then manipulate the content with simple calls:

document.execCommand("formatting command", showUI, parameter)

For example, you can set the color of the selected text to red with this call:

document.execCommand("forecolor", false, "red")

Although this command works well on most browsers, different browsers implement different subsets of formatting commands, and even common commands often produce varying HTML structures.

There are other APIs that affect selection and cursor movement, or allow querying of the current state, and those, too, are often implemented differently.

Our new test suite tries to capture all currently implemented commands and APIs, and runs them on varying initial HTML content and within various containers. The suite already contains well over 1,000 tests.


We don’t want to stop there. We intend to grow the suite and incorporate external feedback and suggestions so we can arrive at a common set of editing functions. We hope this can then serve as a common reference, not only for browser implementers, but also for web developers.

To achieve this goal, we would like input from anyone interested in this topic, including those with past complaints about bugs and incompatibilities in this area.

For suggestions, criticism, and general discussion on the suite and tests, please send feedback to the browserscope mailing list at browserscope@googlegroups.com.

2013, By: Seo Master