Sure it would block the mouse / pointer events.
But iframes should always be used as a sand box. Any comminucation between main
frame and an iframe should be done through postmessage and stringified values.
It is not recommand to share any instance between frames.
So your iframe instance of qooxdoo should not know about any drag session from
your main frame. Dropping into the iframe would be recognized as an ordinary
„mouseup“ event by your iframe document.
So I would advice you to use an overlay anyway and compute the mouse
coordinates relative to the iframe inner document. Send a postmessage like
„{method: „drop“, coordinates:{x:100, y:50}, value:“any value you like“}“ and
detect the element under the point 100 / 50 by using
document.elementFromPoint(100, 50) [1] in your iframe runtime. Than do what you
ever want to ;)
Good luck!
[1] https://developer.mozilla.org/de/docs/Web/API/Document/elementFromPoint
Dank & Gruß
Mustafa Sak
Softwareentwickler
Mail Development
1&1 Mail & Media Development & Technology GmbH | Brauerstraße 48 | 76135
Karlsruhe | Germany
Phone: +49 721 91374-6977
E-Mail: mustafa....@1und1.de<mailto:mustafa....@1und1.de> | Web:
www.1und1.de<http://www.1und1.de/>
Von: Qoo Goo [mailto:qoo...@gmail.com]
Gesendet: Mittwoch, 29. Juli 2015 16:01
An: qooxdoo Development
Betreff: Re: [qooxdoo-devel] Dragging over an iFrame no longer works when
migrating to qx 5.0
Thanks, Mustafa.
I had this in mind, but the interaction is both directions, so that some events
in the inner iframe's dom are caught to do actions in the ouside qooxdoo
controlled area.
Wouldn't this solution break this interaction? (I mean, wouldn't that drop
target block the events on layers behind it?)
2015-07-29 15:14 GMT+02:00 Mustafa Sak
<mustafa....@1und1.de<mailto:mustafa....@1und1.de>>:
Hi,
well Drag & Drop handler changed massively because of using of pointer events.
Now it looks like the pointer move will be prevented, how ever.
Feel free to open a bug, but I would advise you to overlay the iframe with an
„drop target“ layer, which shows the user that an drop does change the whole
iframe not even the DOM element you spotted inside the iframe.
May be this workaround can solve your D&D issue and improves your user
experience.
Dank & Gruß
Mustafa Sak
Softwareentwickler
Mail Development
1&1 Mail & Media Development & Technology GmbH | Brauerstraße 48 | 76135
Karlsruhe | Germany
Phone: +49 721 91374-6977<tel:%2B49%20721%2091374-6977>
E-Mail: mustafa....@1und1.de<mailto:mustafa....@1und1.de> | Web:
www.1und1.de<http://www.1und1.de/>
Von: Qoo Goo [mailto:qoo...@gmail.com<mailto:qoo...@gmail.com>]
Gesendet: Mittwoch, 29. Juli 2015 14:27
An: qooxdoo Development
Betreff: [qooxdoo-devel] Dragging over an iFrame no longer works when migrating
to qx 5.0
Hi,
I am migrating an application from Qooxdoo 3.5.1 to 5.0 and, after fixing some
behaviour changes related to events (click to tap and so), I'm stuck with a
problem dragging onto an iframe.
The problem is that when dragging elements onto the iframe, the drag event
seems to get stalled at the limit of the iframe. You cannot enter the iframe
keeping the drag active (it's curious because if you capture the event in the
parent as I do in my app and you enter the iframe passing over a zone not
occupied by the iframe, then it seems it seems it captures the event, but in
any case the "dragover" event doesn't work).
In the examples I put below, you'll see that if you enter the iframe from the
top of the window, it doesn't work as I would expect (as it did in 3.5.1), but
the drop event is caught. If, instead, you enter the iframe from the bottom
(and dragging fast), it doesn't.
You can see how behaviours differ from Qx 3.5.1 to Qx 5.0 in following links to
the playground.
3.5.1:
http://tinyurl.com/og6l97e
5.0:
http://tinyurl.com/nw3ur95
Does anybody know if Is this a bug or a behaviour change? If it is the
behaviour change, how would you achieve the goal of dropping onto the iframe?
Thanks
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