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List:       openjdk-openjfx-dev
Subject:    Re: Embedding Mac native widgets into a Scene
From:       Jasper Potts <jasper.potts () oracle ! com>
Date:       2014-10-31 17:37:23
Message-ID: DB66344F-AA54-47C9-984D-A4EFAF7FEF50 () oracle ! com
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The iOS implementation worked well. Used CALayers to draw over the top of Fx. It \
synced font and colors etc. made native background transparent. 

Jasper



> On Oct 31, 2014, at 7:52 AM, Stephen F Northover <steve.x.northover@oracle.com> \
> wrote: 
> Hi Mike,
> 
> Embedding native controls in FX runs afoul of the whole lightweight/heavyweight \
> issue.  I had a hack of this once using SWT native controls and I was able to have \
> them appear on Windows because HWND clipping was honored but on Mac, FX drew on top \
> of the native control.  Mac was changed to use CALayers way back for JDK7 and this \
> also made things more complicated. 
> Having said all that (from memory), for iOS, there was some work that overlayed an \
> iOS text control in order to use the native keyboard control.  The control was \
> created when editing started and then disposed when editing ended.  This would \
> obviously have the same lightweight/heavyweight issues while editing was happening \
> and a host of other smaller problems (wrong font, jumping, scrolling etc). 
> One possible way for this to really work would be to get the native control to \
> render to a texture and get JavaFX to draw the texture. That is just the painting \
> side of the equation.  Events would need to be delivered to this non-painting \
> control as well.  There are operating system calls on Mac that you can use to paint \
> a control to an image so it is in theory doable but a ton of work. 
> Steve
> 
> > On 2014-10-31, 9:48 AM, Mike Hearn wrote:
> > JavaFX provides a great set of widgets that are pretty complete, but a few
> > lag behind behind their native counterparts on some platforms. This is
> > especially noticeable with the Mac text field widget, which has things like
> > integrated spelling/grammar checking, auto correct, services, speech
> > recognition and so on.
> > 
> > WebKit manages to expose all this functionality despite that HTML is not
> > the native Mac UI framework. So I am wondering how hard it is for JFX to do
> > the same. However, I know very little about how WebKit does this or how
> > easy it'd be to replicate in the Java world. Are there any experts on the
> > list who could comment?
> 


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