Ignore clipboard changes from certain apps about clipster HOT 9 CLOSED

I don’t think it’s possible without asking the graphic server itself... but using xlib would mean no wayland.
What do other clipboards do? If no one does it, maybe it’s really impossible
(I can’t recall seeing one that does it)

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OK - so there are 2 ways to do this - the first doesn't work, the second isn't ideal:

The first way, as suggested before is to use python-xlib. However not all windows have properties, so you have to recurse up the window tree to find a parent with properties. However some apps seem to like to use 'un-parented' windows so you never get to a parent with a WM_CLASS property before you reach the root window. this is the case with keepass2, inkscape, and a couple of other GUI apps I tried.

The second is to look and see what window is active at the point the owner-change event occurs. This is easy to do, but feels very wrong. However, this is actually what klipper does when you use their Disable Actions for windows of type WM_CLASS option, so it's got some support out there.

It's very easy to break this by doing: sleep 10; echo "cat" | clipster and then changing window focus - however I suspect for the cases where this matters (like keepass2) you're unlikely to have any such delay.

I'll see about implementing this second option and let you know when it's ready to test.

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Good! i didn’t know klipper could do it.
Sadly it’s too much advanced for me to help with the coding, i’m just a beginner, but i’ll be glad to at least help testing it.

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That should be the changes added - to test, add:

filter_classes = KeePass2

To your config and if you run clipster -d -lDEBUG you should hopefully see:

DEBUG:Filter classes enabled for: ['KeePass2']
DEBUG:Active window class is KeePass2
DEBUG:Ignoring active window.

In the output when you cut/copy in keepass2 (but no change in behaviour for other apps).

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i get:

Traceback (most recent call last):
  File "/home/arch/.shortcuts/clipster", line 10, in <module>
    from gi.repository import Gtk, Gdk, GLib, GObject, Wnck
  File "<frozen importlib._bootstrap>", line 969, in _find_and_load
  File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 664, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 634, in _load_backward_compatible
  File "/usr/lib/python3.5/site-packages/gi/importer.py", line 114, in load_module
    introspection_module = get_introspection_module(namespace)
  File "/usr/lib/python3.5/site-packages/gi/module.py", line 271, in get_introspection_module
    module = IntrospectionModule(namespace, version)
  File "/usr/lib/python3.5/site-packages/gi/module.py", line 120, in __init__
    repository.require(namespace, version)
gi.RepositoryError: Requiring namespace 'Gtk' version '2.0', but '3.0' is already loaded

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I think the issue is that you're missing libwnck 3.0 library, and/or the bindings for it in gi.repository. I had hoped these were part of the default Gtk3 install, but obviously not.

Not 100% sure, but a quick google suggests that this can be found in the following packages for different OSes:

• debian/ubuntu: libwnck-3-0 and gir1.2-wnck-3.0
• arch: libwnck3
• redhat/fedora: libwnck3-devel

Let me know if installing that fixes the problem. It might also be necessary to put in another require_version line at the top of the file to force the use of the 3.0:

require_version('Wnck', '3.0')
import Wnck

from clipster.

It’s perfect now; I tried it with firefox and works without flaws. About the wnck, the require_version is needed indeed. I too thought about some missing dependency, but I installed python2-wnck instead of libwnck3, so it didn’t work

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Have added the require_version - thanks for your issue request and testing! 👍

from clipster.

thanks to you for dealing with it!

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