ACTIONSCRIPT 3 Developer’s Guide en

ACTIONSCRIPT 3.0 DEVELOPER’S GUIDE
Working with AIR native windows
The scale mode for Flex and HTML windows is set to noScale automatically.
Note: To determine the maximum and minimum window sizes allowed on the current operating system, use the following
static NativeWindow properties:
var maxOSSize:Point = NativeWindow.systemMaxSize;
var minOSSize:Point = NativeWindow.systemMinSize;
Creating an HTML window
Adobe AIR 1.0 and later
To create an HTML window, you can either call the JavaScript Window.open() method, or you can call the AIR
HTMLLoader class createRootWindow() method.
HTML content in any security sandbox can use the standard JavaScript Window.open() method. If the content is
running outside the application sandbox, the open() method can only be called in response to user interaction, such
as a mouse click or keypress. When open() is called, a window with system chrome is created to display the content
at the specified URL. For example:
newWindow = window.open("xmpl.html", "logWindow", "height=600, width=400, top=10, left=10");
Note: You can extend the HTMLHost class in ActionScript to customize the window created with the JavaScript
window.open() function. See “About extending the HTMLHost class” on page 1006.
Content in the application security sandbox has access to the more powerful method of creating windows,
HTMLLoader.createRootWindow(). With this method, you can specify all the creation options for a new window. For
example, the following JavaScript code creates a lightweight type window without system chrome that is 300x400
pixels in size:
var options = new air.NativeWindowInitOptions();
options.systemChrome = "none";
options.type = "lightweight";
var windowBounds = new air.Rectangle(200,250,300,400);
newHTMLLoader = air.HTMLLoader.createRootWindow(true, options, true, windowBounds);
newHTMLLoader.load(new air.URLRequest("xmpl.html"));
Note: If the content loaded by a new window is outside the application security sandbox, the window object does not have
the AIR properties: runtime, nativeWindow, or htmlLoader.
If you create a transparent window, then SWF content embedded in the HTML loaded into that window is not always
displayed. You must set the wmode parameter of the object or embed tag used to reference the SWF file to either opaque
or transparent. The default value of wmode is window, so, by default, SWF content is not displayed in transparent
windows. PDF content cannot be displayed in transparent windows, no matter which wmode value is set. (Prior to AIR
1.5.2, SWF content could not be displayed in transparent windows, either.)
Windows created with the createRootWindow() method remain independent from the opening window. The
parent and opener properties of the JavaScript Window object are null. The opening window can access the
Window object of the new window using the HTMLLoader reference returned by the createRootWindow() function.
In the context of the previous example, the statement newHTMLLoader.window would reference the JavaScript
Window object of the created window.
Note: The createRootWindow() function can be called from both JavaScript and ActionScript.
Last updated 6/6/2012
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