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= Overview of QtWebKit 2.2 =

!QtWebKit is a web content engine based on the Open Source WebKit project, the same engine used by browsers such as [http://www.google.com/chrome/ Google Chrome] and [http://www.apple.com/safari/ Safari] from Apple. !QtWebKit has broad support for modern web technologies and is compliant with typical web content. !QtWebKit is developed as a part of the WebKit community, which enables every new release of !QtWebKit to include the latest developments from the WebKit project.

!QtWebKit has a C++ API that allows Qt applications to embed web content, and to examine and manipulate the web content. The !QtWebKit C++ API is extensively documented in the !QtWebKit documentation.

!QtWebKit-2.2 was branched from the WebKit trunk on May of 2011 and includes several HTML5, CSS and JavaScript improvements when compared to !QtWebKit-2.1 and !QtWebKit-2.0 (see details below).

See also: [wiki:QtWebKitRelease22 QtWebKit-2.2 releases] (trackers, download, repository, etc)

== Changes since QtWebKit-2.1 ==
(!QtWebKit-2.1 was an independent release targeted at and supported on mobile platforms.)

The main changes since !QtWebKit-2.1 are:

 * '''TODO:''' fill-in notable changes on trunk during the past year;
 * Support for HTML media (audio/video) on desktop platforms;

== Changes since QtWebKit-2.0 (Qt-4.7.*) ==
(!QtWebKit-2.0 was the previous version supported on desktop and mobile platforms. It's the !QtWebKit version included in Qt-4.7.)

These are the changes between !QtWebKit-2.0 and !QtWebKit-2.1 (combine them with the changes between !QtWebKit-2.1 and !QtWebKit-2.2 to have the full list)

=== Notable Web Developer features ===

  * Touch Events
  * Geolocation API
  * Progress element and meter element
  * Viewport meta tag
  * Canvas element
  * Application cache
  * Web SQL Database
  * Web Storage
  * CSS Animations
  * CSS Transitions
  * CSS 2D Transforms
  * CSS Text
  * CSS Masks
  * CSS ScrollBar Styles
  * Native JSON parser

Note: HTML5 and CSS3 features are based on draft specifications that are subject to change. 

=== JavaScript JIT ===

Just-in-time (JIT) compilation for JavaScript works on the following platforms (some of them not officially supported):
  * Mac OS X, 64-bit and 32-bit
  * Windows desktop platforms when using Microsoft Visual C++ or gcc 4.1 or higher (MinGW). 32-bit build only; JIT currently doesn't work on 64-bit builds on Windows.
  * Linux on x86 platforms with gcc 4.1 or higher
  * Linux on ARM (Thumb-2 JIT is not currently used)
  * Linux on MIPS architecture, maintained by MIPS Technologies.
  * Symbian 

=== Netscape Plug-in API ===

!QtWebKit-2.2 includes the Netscape Plug-in API on X11, Windows, and Mac OS X. 

== See also ==
   * [wiki:QtWebKitRelease22 QtWebKit-2.2 release page]
   * [wiki:QtWebKitFeatures21 QtWebKit-2.1 features]