When I looked at the class, I didn’t understand why it didn’t *actually* 
subclass MouseEvent. What’s the purpose of DragEventBase?

> On Dec 21, 2018, at 9:01 AM, Alex Harui <aha...@adobe.com.INVALID> wrote:
> 
> Ah, ok, I didn't notice the IFrame.  The goal is to have DragEvent appear to 
> subclass MouseEvent, so whatever values a MouseEvent would have, the 
> DragEvent should have.
> 
> Thanks,
> -Alex
> 
> On 12/20/18, 11:23 AM, "Harbs" <harbs.li...@gmail.com> wrote:
> 
>> I think clientX/Y does depend on the target.  In the link [2], there is an 
>> example that you can play with, and clientX/Y is not global coordinates.  
>> MDN is usually good doc, but I think the doc for clientX/Y is not 
>> well-written.
> 
>    It does not depend on the target. It’s global relative to the *window*. 
> The example on that page is within an iframe, so it’s relative to that. I 
> believe that in Royale the global space we should be concerned about is the 
> application’s Window. That makes clientX/Y a good choice.
> 
>    
> https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fstackoverflow.com%2Fquestions%2F6073505%2Fwhat-is-the-difference-between-screenx-y-clientx-y-and-pagex-y&amp;data=02%7C01%7Caharui%40adobe.com%7Cb256f79f5e02413ec5f208d666b0ac3b%7Cfa7b1b5a7b34438794aed2c178decee1%7C0%7C0%7C636809306326176299&amp;sdata=wAYsjF2npgyibZApmnaucPv93FqFb4OJ0iq0mwfnMpA%3D&amp;reserved=0
>  
> <https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fstackoverflow.com%2Fquestions%2F6073505%2Fwhat-is-the-difference-between-screenx-y-clientx-y-and-pagex-y&amp;data=02%7C01%7Caharui%40adobe.com%7Cb256f79f5e02413ec5f208d666b0ac3b%7Cfa7b1b5a7b34438794aed2c178decee1%7C0%7C0%7C636809306326176299&amp;sdata=wAYsjF2npgyibZApmnaucPv93FqFb4OJ0iq0mwfnMpA%3D&amp;reserved=0>
> 
>> On Dec 20, 2018, at 8:01 PM, Alex Harui <aha...@adobe.com.INVALID> wrote:
>> 
>> I think clientX/Y does depend on the target.  In the link [2], there is an 
>> example that you can play with, and clientX/Y is not global coordinates.  
>> MDN is usually good doc, but I think the doc for clientX/Y is not 
>> well-written.
>> 
>> -Alex
>> 
>> On 12/20/18, 5:48 AM, "Yishay Weiss" <yishayj...@hotmail.com> wrote:
>> 
>>   Actually, creating localX/localY in HTML is expensive so maybe not a PAYG 
>> solution.
>> 
>> 
>> 
>>   I suggest to just have clientX/Y mirror the mouse event and let listeners 
>> figure out what they need similar to what I did here [1].
>> 
>> 
>> 
>>   Thoughts?
>> 
>> 
>> 
>>   [1] 
>> https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fapache%2Froyale-asjs%2Fblob%2Ff6733066124309c61fb054b10439cc3551ddfaed%2Fframeworks%2Fprojects%2FDragDrop%2Fsrc%2Fmain%2Froyale%2Forg%2Fapache%2Froyale%2Fhtml%2Fbeads%2FSensitiveSingleSelectionDropTargetBead.as%23L248&amp;data=02%7C01%7Caharui%40adobe.com%7Cb256f79f5e02413ec5f208d666b0ac3b%7Cfa7b1b5a7b34438794aed2c178decee1%7C0%7C0%7C636809306326176299&amp;sdata=4K1REyL0gm%2Br5pApE2Ysfb8j%2Bpvzz%2F%2BpXBgrVqYTUGE%3D&amp;reserved=0
>> 
>> 
>> 
>>   ________________________________
>>   From: Yishay Weiss <yishayj...@hotmail.com>
>>   Sent: Thursday, December 20, 2018 3:40:18 PM
>>   To: dev@royale.apache.org
>>   Subject: RE: DragEvent.clientY
>> 
>> 
>> 
>>   The only place [1] in Flex code I see a similar logic is in DragProxy, 
>> where a change of targets transforms the localX/Y values. But I was 
>> referring to clientX/Y which should not depend on the target. As I 
>> understand [2] it, is just the position of the pointer in the browser window.
>> 
>> 
>> 
>>   It could be that clientX/Y isn’t necessary in DragEvent.DRAG_OVER and that 
>> we only need to set localX/Y. That should be enough for my purposes using 
>> locaToGlobal.
>> 
>> 
>> 
>>   I’ll change it to that and let me know if you have objections.
>> 
>> 
>> 
>>   [1] 
>> https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fapache%2Fflex-sdk%2Fblob%2Fba414443032b49c45ff11b61db452c8a8f428bd8%2Fframeworks%2Fprojects%2Fframework%2Fsrc%2Fmx%2Fmanagers%2FdragClasses%2FDragProxy.as%23L353&amp;data=02%7C01%7Caharui%40adobe.com%7Cb256f79f5e02413ec5f208d666b0ac3b%7Cfa7b1b5a7b34438794aed2c178decee1%7C0%7C0%7C636809306326176299&amp;sdata=%2B04P9BOgeF0lCjWS7ObJq6Bfxs2gTpHgoZSjwF6y0CE%3D&amp;reserved=0
>> 
>> 
>> 
>>   [2]  
>> https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FWeb%2FAPI%2FMouseEvent%2FclientX&amp;data=02%7C01%7Caharui%40adobe.com%7Cb256f79f5e02413ec5f208d666b0ac3b%7Cfa7b1b5a7b34438794aed2c178decee1%7C0%7C0%7C636809306326186309&amp;sdata=EOX9j18%2FV2HhKBzy%2B7Veugqv9ambtQcWNB6Lwh%2FN1Ck%3D&amp;reserved=0
>> 
>> 
>> 
>>   ________________________________
>>   From: Alex Harui <aha...@adobe.com.INVALID>
>>   Sent: Wednesday, December 19, 2018 7:21:26 PM
>>   To: dev@royale.apache.org
>>   Subject: Re: DragEvent.clientY
>> 
>>   I suggest looking at the Flex code.  Some of this may have been ported 
>> without considering whether it is truly needed or not.  The key factor to 
>> consider is the event target and who is consuming the event.  IIRC, in Flex, 
>> the event target could be something other than the source or destination 
>> component, like the drag indicator, drop indicator and other things, but the 
>> DragEvent listeners are trying to track and compute destinations.  clientX/Y 
>> generally maps back to localX/Y in the Flex DragEvent.  It looks like this 
>> code is always using stage/screen coordinates which may be more consistent 
>> than using the event target's clientX/Y which will change as you drag over 
>> various things on the way to the final drop point.
>> 
>>   -Alex
>> 
>>   On 12/19/18, 1:55 AM, "Yishay Weiss" <yishayj...@hotmail.com> wrote:
>> 
>>       Any idea what it’s used for? Is it supposed to be the same as 
>> MouseEvent.clientY ? If so, why do we have this sequence in 
>> DragEvent.createEvent() (event being MouseEvent)?
>> 
>>                                                                       var 
>> localPoint:Point = new Point(event.screenX, event.screenY);
>>                                                                       var 
>> clientPoint:Point = PointUtils.localToGlobal(localPoint, event.target);
>>                                                                       
>> de.clientX = clientPoint.x;
>>                                                                       
>> de.clientY = clientPoint.y;
>> 
>>       I’d like to use it for SensitiveSingleSelectionDropTargetBead but the 
>> values don’t make sense to me. I don’t see it being used anywhere in the 
>> framework right now.
>> 
>> 
>> 
>> 
> 
> 
> 

Reply via email to