Yes! See the docs for any app with lzt=deployment, e.g.:
http://labs.openlaszlo.org/trunk-nightly/my-apps/copy-of-hello.lzx?lzt=deployment
To call a method in an application, use:
value =
lz.embed.lzapp.callMethod('globalreference.reference.anyMethod(...)')
passing a string representation of the method and any arguments you wish
to pass. You can call any available method in the application as long as
'globalreference' can be found in the global scope.
To call a method in all applications on the page, use:
lz.embed.callMethod('globalreference.reference.anyMethod(...)')
Sarah Allen wrote:
So, is there any native-LZX way to do this? or is the Flash API the
best I can do for now?
Thanks!
Sarah
On Jun 12, 2009, at 10:12 AM, Henry Minsky wrote:
You're looking at out of date docs, the new docs say it has two args.
See the docs at http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/
addCallback () method
| public static function addCallback(functionName:String
<http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/String.html>,
closure:Function
<http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/Function.html>):void
<http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/specialTypes.html#void>|
* Language Version : * ActionScript 3.0
* Runtime Versions : * AIR 1.0, Flash Player 9
Registers an ActionScript method as callable from the container. After
a successful invocation of |addCallBack()|, the registered function in
Flash Player can be called by JavaScript or ActiveX code in the
container.
*Note:* For /local/ content running in a browser, calls to the
|ExternalInterface.addCallback()| method work only if the SWF file and
the containing web page are in the local-trusted security sandbox. For
more information, see the following:
* The security chapter
<http://www.adobe.com/go/flashCS3_progAS3_security> in the
/Programming ActionScript 3.0/ book and the latest comments on
LiveDocs
* The Flash Player 9 Security white paper
<http://www.adobe.com/go/fp9_0_security>
Parameters
|functionName:String
<http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/String.html>|
— The name by which the container can invoke the function.
|closure:Function
<http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/Function.html>|
— The function closure to invoke. This could be a free-standing
function, or it could be a method closure referencing a method of an
object instance. By passing a method closure, you can direct the
callback at a method of a particular object instance.
Throws
|Error
<http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/Error.html>
| — The container does not support incoming calls. Incoming calls are
supported only in Internet Explorer for Windows and browsers that use
the NPRuntime API such as Mozilla 1.7.5 and later or Firefox 1.0 and
later.
|SecurityError
<http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/SecurityError.html>
| — A callback with the specified name has already been added by
ActionScript in a sandbox to which you do not have access; you cannot
overwrite that callback. To work around this problem, rewrite the
ActionScript that originally called the |addCallback()| method so that
it also calls the |Security.allowDomain()| method.
|SecurityError
<http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/SecurityError.html>
| — The containing environment belongs to a security sandbox to which
the calling code does not have access. To fix this problem, follow
these steps:
1. In the |object| tag for the SWF file in the containing HTML
page, set the following parameter:
|<param name="allowScriptAccess" value="always" />|
2. In the SWF file, add the following ActionScript:
|flash.system.Security.allowDomain(/sourceDomain/)|
See also
On Fri, Jun 12, 2009 at 12:51 PM, Sarah Allen <[email protected]
<mailto:[email protected]>> wrote:
I'm seeing a weird compiler error in trunk... might be recent
regression (it is possible, but unlikely that I somehow left this
code in a state that had a compiler error a couple of months ago
when I last looked at this app) I'll be looking at this more, but
I wanted to send a note in case anyone else is seeing something
similar or has any ideas.
org.openlaszlo.sc.CompilerError: main.lzx: 41: Error: Incorrect
number of arguments. Expected no more than 2, in line:
flash.external.ExternalInterface.addCallback("playMedia", null,
playMedia)
The Flash docs indicate that there are three arguments:
http://livedocs.adobe.com/flash/9.0/main/wwhelp/wwhimpl/common/html/wwhelp.htm?context=LiveDocs_Parts&file=00001653.html
<http://livedocs.adobe.com/flash/9.0/main/wwhelp/wwhimpl/common/html/wwhelp.htm?context=LiveDocs_Parts&file=00001653.html>
Also, is there any LZX-native way that I should be making this
call instead of devolving into calling Flash directly?
Thanks in advance,
Sarah
--
Henry Minsky
Software Architect
[email protected] <mailto:[email protected]>
http://www.ultrasaurus.com
--
Regards,
Max Carlson
OpenLaszlo.org
