[Laszlo-dev] Need input on [#LPP-8375] onmouseout even on HTML component is firing onmouseover, not onmouseout - OpenLaszlo Jira

Thu Aug 13 12:26:34 PDT 2009

The backtrace shows that both the mouseover and mouseout are coming  
from the <html> sprite's clickdiv.

[I added detailed information to the bug report.]

On 2009-08-13, at 14:43EDT, Max Carlson wrote:

> Yes, it makes sense.  See lps/components/extensions/html.lzx for the  
> handoff - the view:
>
>    LzMouseKernel.disableMouseTemporarily();
>
> Maybe that call should prevent the next onmouseout event from being  
> sent?
>
> The next thing that happens is the mouse leaves the iframe and  
> mouses over the canvas container div (see the LzSprite constructor  
> for the canvas - isroot == true).  If the mouse goes over an element  
> inside the app, LzMouseKernel.__resetMouse() is called to restore  
> clickability.
>
> You might try running with backtrace on to see where the spurious  
> onmouseover event is being fired from...
>
> P T Withington wrote:
>> Does this theory make sense?  Where should I be looking to see how  
>> mouse events are transferred from a view's clickdiv to the actual  
>> div?
>>> It seems plausible to me that what might be happening here is that  
>>> the mouse enters the iframe's clickdiv and it gets a mouseover  
>>> event, but that event turns off the clickdiv hierarchy, so you can  
>>> interact with the iframe content, and so the browser sends a  
>>> mouseout event (because the mouse has effectively left the  
>>> building). I need to understand better how the mouse events are  
>>> transferred from the clickdiv to the view content.
>> [[#LPP-8375] onmouseout even on HTML component is firing  
>> onmouseover, not onmouseout - OpenLaszlo Jira](http://jira.openlaszlo.org/jira/browse/LPP-8375 
>> )
>
> -- 
> Regards,
> Max Carlson
> OpenLaszlo.org