[Vm-dev] Extended Clipboard

[Juan Vuletich]

Hi Folks,

I was pretty sure I had seen _something_ about a ClipboardExtendedPlugin 
for Linux at some time.

Found it. It seems it was part of an OLPC Etoys specific branch of the 
old interpreter vm. I don't know how complete this was, or if it was 
actually used. Anyway, in case it is of any use, see 
http://squeakvm.org/svn/squeak/branches/olpc/platforms/unix/src/plugins/ClipboardExtendedPlugin/

Thanks,

On 3/23/2023 9:58 PM, Eliot Miranda wrote:
>   
>
>
> Hi Hilaire,
>
>> On Mar 23, 2023, at 2:38 PM, Hilaire Fernandes <hfern at free.fr> wrote:
>>
>> 
>>
>> Hi Eliot,
>>
>> I will try to take a deep look as I have also interest for tablet 
>> support on Linux. This is a completely new domain (VM) for me.
>>
>
> I hope you find it fun!
>
> Your job is to implement this interface:
>
> void sqPasteboardClear(void *inPasteboard);
> sqInt sqPasteboardGetItemCount(void *inPasteboard);
> sqInt sqPasteboardCopyItemFlavorsitemNumber(void *inPasteboard, sqInt 
> formatNumber);
> void*sqCreateClipboard(void);
> voidsqPasteboardPutItemFlavordatalengthformatTypeformatLength(void*inPasteboard, 
> char*inData, sqInt dataLength, char*format, sqInt formatLength);
> void sqPasteboardPutItemFlavordatalengthformatType(void *inPasteboard, 
> char *inData, sqInt dataLength, sqInt format);
> sqInt 
> sqPasteboardCopyItemFlavorDataformatformatLength(void*inPasteboard, 
> char*format, sqInt formatLength);
> sqInt sqPasteboardCopyItemFlavorDataformat(void*inPasteboard, sqInt 
> format);
> sqInt sqPasteboardhasDataInFormatformatLength(void *inPasteboard, char 
> *format, sqInt formatLength);
> sqInt sqPasteboardhasDataInFormat(void*inPasteboard, sqInt format);
>
> which is present only in 
> src/plugins/ClipboardExtendedPlugin/ClipboardExtendedPlugin.c, a 
> departure from the house style which would have put it in 
> platforms/Cross/plugins/ClipboardExtendedPlugin/ClipboardExtendedPlugin.h; 
> no doubt John had his reasons.
>
> Use 
> platforms/iOS/plugins/ClipboardExtendedPlugin/sqMacExtendedClipboard.m 
> & 
> platforms/win32/plugins/ClipboardExtendedPlugin/sqWin32ExtendedClipboard.c 
> as guides. The Mac uses strings to identify clipboard types (the 
> char*format, sqInt formatLength) variant, as opposed to win32, which 
> uses integers (the sqInt format variant). Whichever works.
>
> You’ll implement it in 
> platforms/unix/plugins/ClipboardExtendedPlugin/sqUnixExtendedClipboard.c
>
>> Thanks
>>
>> Hilaire
>>
>> Le 23/03/2023 à 21:05, Eliot Miranda a écrit :
>>> As John said it doesn't appear to exist for Linux.  But X11 has a 
>>> clipboard and implementing the innards for X11 shouldn't be that 
>>> difficult.  The only complication is that if one wants to do the job 
>>> "properly" one has to extend the indirection scheme Ian Piumarta 
>>> came up with so that it can work on the other graphical back-ends 
>>> such as the raw frame buffer.  Hillaire, if you're interested in 
>>> implementing the X11 ExtendedClipboard internals I'm happy to answer 
>>> any questions you have.
>> -- 
>> GNU Dr. Geo
>> http://drgeo.eu
>> http://blog.drgeo.eu


-- 
Juan Vuletich
cuis.st
github.com/jvuletich
researchgate.net/profile/Juan-Vuletich
independent.academia.edu/JuanVuletich
patents.justia.com/inventor/juan-manuel-vuletich
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twitter.com/JuanVuletich

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