ACTIONSCRIPT 3 Developer’s Guide en

ACTIONSCRIPT 3.0 DEVELOPER’S GUIDE
About the HTML environment
HTML content in AIR does not display SWF or PDF content if alpha, scaling, or transparency settings are applied. For
more information, see “Considerations when loading SWF or PDF content in an HTML page” on page 1001 and
“Window transparency” on page 893.
More Help topics
Webkit DOM Reference
Safari HTML Reference
Safari CSS Reference
www.webkit.org
Overview of the HTML environment
Adobe AIR 1.0 and later
Adobe AIR provides a complete browser-like JavaScript environment with an HTML renderer, document object
model, and JavaScript interpreter. The JavaScript environment is represented by the AIR HTMLLoader class. In
HTML windows, an HTMLLoader object contains all HTML content, and is, in turn, contained within a
NativeWindow object. In SWF content, the HTMLLoader class, which extends the Sprite class, can be added to the
display list of a stage like any other display object. The Adobe® ActionScript® 3.0 properties of the class are described
in “Scripting the AIR HTML Container” on page 1000 and also in the ActionScript 3.0 Reference for the Adobe Flash
Platform. In the Flex framework, the AIR HTMLLoader class is wrapped in a mx:HTML component. The mx:HTML
component extends the UIComponent class, so it can be used directly with other Flex containers. The JavaScript
environment within the mx:HTML component is otherwise identical.
About the JavaScript environment and its relationship to the AIR host
Adobe AIR 1.0 and later
The following diagram illustrates the relationship between the JavaScript environment and the AIR run-time
environment. Although only a single native window is shown, an AIR application can contain multiple windows. (And
a single window can contain multiple HTMLLoader objects.)
Last updated 6/6/2012
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