[webkit-dev] Javascript / Obj-c object property mismatch
Rudi Sherry
rsherry at adobe.com
Thu Oct 26 08:47:30 PDT 2006
I'm working with a WebView where I use DOM object manipulation in
objective-c combined with javascript.
I have the dom document and I add an object with some attributes like
this:
DOMNodeList *list = [ domDoc getElementsByTagName: @"BODY" ];
DOMNode *body = [ list item: 0 ];
myObject = (DOMHTMLObjectElement *) [ [ domDoc createElement:
@"OBJECT" ] retain ];
[ myObject setAttribute: @"ID" : @"MyObjectName" ];
[ myObject setAttribute: @"NAME" : @"MyObjectName" ];
<snip>
[ myObject setAttribute: @"command" : @"xxx" ];
[ body appendChild: myObject ];
In the javascript, I can get the object with this and check its value
(this is in a javascript function that gets called):
var myObject = document.body.children['MyObjectName'];
alert(myObject.command);
myObject.command = "abcdef";
alert(myObject.command);
I have a WebUIDelegate with the runJavaScriptAlertPanelWithMessage
that prints out the alert value and compares it against myObject:
- (void)webView:(WebView *)sender runJavaScriptAlertPanelWithMessage:
(NSString *)message
{
NSLog (@"alert: %@", message);
NSLog( @"command attribute: %@", [ mSwfObject getAttribute:
@"command" ] );
}
In the above example, it prints out:
2006-10-26 08:44:29.771 TestInsideWebKit[9235] alert: xxx
2006-10-26 08:44:29.771 TestInsideWebKit[9235] command attribute: xxx
2006-10-26 08:44:29.771 TestInsideWebKit[9235] alert: abcdef
2006-10-26 08:44:29.771 TestInsideWebKit[9235] command attribute: xxx
Why isn't the command attribute changed in the objective-c object
when it's changed in the javascript function? It must be the same
object since it started as 'xxx'.
Any help would be appreciated,
Thanks,
Rudi
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