Thank you! If I understand all correct:
1)
in my ViewImpl-Class in the Consructor I have to create the frame and load
the content.
The content (html-url) is from my war-directory:
frame = new Frame(GWT.getHostPageBaseURL() + "ClientData/myhtml.html");
frame.getElement().setId("framename");
=> $doc is right here because it is in my domain?
2)
After that I should wait until the frame content is fully loaded.
=> How can I handle this??
For testing I added a Button in my ViewImpl-Class. After clicking(tap) the
button, I call the setFrameSize method with the correct id.
optimizeFrameSize("framename");
3)
If the content is loaded I call the setFrameSize()-Method.
public native boolean setFrameSize (String id)
/*-{
var newheight;
var newwidth;
var frame = $doc.getElementById(id)
if(frame !=null){
newheight=frame.contentWindow.$doc.body.scrollHeight;
newwidth=frame.contentWindow.$doc.body.scrollWidth;
frame.height= (newheight) + "px";
frame.width= (newwidth) + "px";
return true;
}
return false;
}-*/;
(The old code was from internet. I never coded JS before.)
After the three steps I get the following exception-text ("property
'body'"?):
uncaught: Exception caught: Exception caught: (TypeError)
@xyz.client.views.experimental.FrameViewGwtImpl::optimizeFrameSize(Ljava/lang/String;)([string:
'framename']): Cannot read property 'body' of undefined
Am Mittwoch, 15. Januar 2014 16:58:24 UTC+1 schrieb Jens:
>
> You must first add the Frame to the document
> otherwise doc.getElementById() can not find it. You also have to wait until
> the frame content is fully loaded before reading any size related values.
>
> Finally your setFrameSize() seems not optimal. You call 4x
> getElementById() instead of just 1x (keep a reference of the found element)
> and the if() does not protect you from anything as you call
> $doc.getElementById inside and outside the if().
>
> Finally as a reminder: $doc is a special GWT variable so if your frame
> content is not a GWT app then calling $doc inside the frame will not work.
>
> -- J.
>
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