[Vm-dev] Extended Clipboard
Eliot Miranda
eliot.miranda at gmail.com
Sat Mar 25 00:42:34 UTC 2023
Hi Dave, can you email me the file or commit it to the opensmalltalk repo?
If you do the latter don't worry; nothing will break because it isn't
included in any plugins.int/.ext yet
On Fri, Mar 24, 2023 at 4:43 PM David T. Lewis <lewis at mail.msen.com> wrote:
>
> On Fri, Mar 24, 2023 at 03:41:58PM -0700, Eliot Miranda wrote:
> >
> > Hi Juan, Hi All,
> >
> > On Thu, Mar 23, 2023 at 6:19???PM Juan Vuletich <juan at cuis.st> wrote:
> >
> > > 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/
> > >
> >
> > Alas this isn't unix specific. It is the generated plugin, which in this
> > case (and in several other plugins, such as the FilePlugin and the
> > SocketPlugin) is just the platform-independent wrapper around the
> > platform-specific functionality. The source doesn't really belong there.
> > In OpenSmalltalk you'll find it only in
> > src/plugins/ClipboardExtendedPlugin/ClipboardExtendedPlugin.c. So...
> >
>
> Here is some background that I hope may help.
>
> Juan's pointer above was off by just a bit, the platform source in the
> olpc branch with original commits by author takashi is at:
>
>
> http://squeakvm.org/cgi-bin/viewvc.cgi/squeak/branches/olpc/platforms/unix/plugins/ClipboardExtendedPlugin/
>
> This was one of several plugins from olpc that Ian added to the SVN trunk
> in 2008:
>
> ------------------------------------------------------------------------
> r1860 | piumarta | 2008-04-28 15:15:56 -0400 (Mon, 28 Apr 2008) | 1 line
>
> add generated code for Rome, Kedama, Aio, ImmX11, Ogg,
> ClipboardExtended, Kedana2, GStreamer, DBus plugins
> ------------------------------------------------------------------------
> r1859 | piumarta | 2008-04-28 15:11:59 -0400 (Mon, 28 Apr 2008) | 1 line
>
> add platform support for new plugins
> ------------------------------------------------------------------------
>
> So the unix platform source along with cmake build support is now here:
>
>
> http://squeakvm.org/cgi-bin/viewvc.cgi/squeak/trunk/platforms/unix/plugins/ClipboardExtendedPlugin/
>
> The source appears to be incomplete (I don't know why it was not finished):
>
>
> http://squeakvm.org/cgi-bin/viewvc.cgi/squeak/trunk/platforms/unix/plugins/ClipboardExtendedPlugin/sqUnixExtendedClipboard.c?revision=1859&view=markup
>
> This plugin builds cleanly on unix and it runs, but I do not know if
> it does anything useful at this point. I keep an up to date interpreter
> VM on my pc, and here are the contents of the VM folder:
>
> $ ls -l /usr/local/lib/squeak/4.20.4-3822/
> total 7180
> -rwxr-xr-x 1 root root 33264 Jan 16 11:29 ckformat
> -rw-r--r-- 1 root root 28616 Jan 16 11:29 so.AioPlugin
> -rw-r--r-- 1 root root 229088 Jan 16 11:29 so.B3DAcceleratorPlugin
> -rw-r--r-- 1 root root 58656 Jan 16 11:29 so.CameraPlugin
> -rw-r--r-- 1 root root 32200 Jan 16 11:29 so.ClipboardExtendedPlugin
> -rw-r--r-- 1 root root 90072 Jan 16 11:29 so.DBusPlugin
> -rw-r--r-- 1 root root 28336 Jan 16 11:29 so.FileCopyPlugin
> -rw-r--r-- 1 root root 87512 Jan 16 11:29 so.FT2Plugin
> -rw-r--r-- 1 root root 35632 Jan 16 11:29 so.HostWindowPlugin
> -rw-r--r-- 1 root root 35240 Jan 16 11:29 so.ImmX11Plugin
> -rw-r--r-- 1 root root 176048 Jan 16 11:29 so.KedamaPlugin2
> -rw-r--r-- 1 root root 927416 Jan 16 11:29 so.Mpeg3Plugin
> -rw-r--r-- 1 root root 194808 Jan 16 11:29 so.RomePlugin
> -rw-r--r-- 1 root root 121344 Jan 16 11:29 so.ScratchPlugin
> -rw-r--r-- 1 root root 243304 Jan 16 11:29 so.Squeak3D
> -rw-r--r-- 1 root root 116896 Jan 16 11:29 so.SqueakFFIPrims
> -rw-r--r-- 1 root root 161568 Jan 16 11:29 so.SqueakSSL
> -rw-r--r-- 1 root root 53824 Jan 16 11:29 so.UnicodePlugin
> -rw-r--r-- 1 root root 134304 Jan 16 11:29 so.UnixOSProcessPlugin
> -rw-r--r-- 1 root root 26712 Jan 16 11:29 so.UUIDPlugin
> -rw-r--r-- 1 root root 229784 Jan 16 11:29 so.VectorEnginePlugin
> -rw-r--r-- 1 root root 47136 Jan 16 11:29 so.vm-display-custom
> -rw-r--r-- 1 root root 149528 Jan 16 11:29 so.vm-display-fbdev
> -rw-r--r-- 1 root root 26536 Jan 16 11:29 so.vm-display-null
> -rw-r--r-- 1 root root 357312 Jan 16 11:29 so.vm-display-X11
> -rw-r--r-- 1 root root 26104 Jan 16 11:29 so.vm-sound-custom
> -rw-r--r-- 1 root root 35656 Jan 16 11:29 so.vm-sound-NAS
> -rw-r--r-- 1 root root 16616 Jan 16 11:29 so.vm-sound-null
> -rw-r--r-- 1 root root 47264 Jan 16 11:29 so.vm-sound-pulse
> -rw-r--r-- 1 root root 29840 Jan 16 11:29 so.WeDoPlugin
> -rw-r--r-- 1 root root 27752 Jan 16 11:29 so.XDisplayControlPlugin
> -rwxr-xr-x 1 root root 3484728 Jan 16 11:29 squeakvm
>
> This means we have a running plugin available, and the missing
> implementation needs to be filled in as Eliot explains below.
>
> Finally, I note that the original commit notice by takashi explains
> the plugin design, and points to implementation code in sqUnixX11.c:
>
>
> http://squeakvm.org/cgi-bin/viewvc.cgi/squeak?view=revision&revision=1673
>
> I think that this topic originated from a question on the Cuis list.
> Cuis maintains a V3 version of the image that can run on an interpreter
> VM, so if someone is working with Cuis on Linux, you may want to check
> and see if the existing plugin might actually be working. Or if you
> can explain what I should look for in Cuis, I can take a look at it
> (I know Cuis but I don't really know anything about how this plugin
> is used in the image).
>
> HTH,
> Dave
>
>
>
>
> > The upper level of a plugin which is generated from VMMaker source is in
> > <root>/src/plugins/<PluginName>/<PluginName>.c
> > It is generated from a class called <PluginName> that inherits from
> > InterpreterPlugin in category VMMaker-Plugins.
> > The header file that defines the interface between the plugin and any
> > platform-specific code is typically in
> > <root>/platforms/Cross/plugins/<PluginName>/<PluginName>.h
> > and in this case is missing (which should be fixed).
> > The various implementations of platform-specific code are often in
> > <root>/platforms/{iOS,unix,win32,etc}/plugins/<PluginName>/
> > sq[Mac,Unix,Win32,etc}<PluginName>.{c,cc,m,etc}
> > but sometimes more than one file is required to implement the plugin
> > internals.
> > For example, the SoundPlugin typically requires a handful of source files
> > and occasionally a specific makefile.
> >
> > HTH
> >
> > 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>
> > > <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);
> > > void sqPasteboardPutItemFlavordatalengthformatTypeformatLength(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 ?? 21:05, Eliot Miranda a ??crit :
> > >
> > > 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. Geohttp://drgeo.euhttp://blog.drgeo.eu
> > >
> > >
> > >
> > > --
> > > Juan
> Vuletichcuis.stgithub.com/jvuletichresearchgate.net/profile/Juan-Vuletichindependent.academia.edu/JuanVuletichpatents.justia.com/inventor/juan-manuel-vuletichlinkedin.com/in/juan-vuletich-75611b3twitter.com/JuanVuletich
> > >
> > >
> >
> > --
> > _,,,^..^,,,_
> > best, Eliot
>
>
--
_,,,^..^,,,_
best, Eliot
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