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@tryone144 tryone144 commented Nov 29, 2020

Cache all entries of the _NET_WM_STATE property for each window. This allows the addition of a new rule-target wm_state to match against the cached property with a string analogous to window_type:

opacity-rule = [ "0:wm_state = 'hidden'" ];

See #512 (comment) for more details on that.

Resolves #512.
Related: #550

TODO

…cified

When matching against custom window properties or atoms perform the
matching against all available values (currently hardcoded to a max. of 10)
using logical OR if no index is specified.

This should help when an atom has multiple values and you only want to
check against any of these — e.g. hiding windows with state `hidden`:
`--opacity-rule "0:_NET_WM_STATE@32a *= '_NET_WM_STATE_HIDDEN'"` —
without having to explicitly specify each index separately.
Keep track of the `_NET_WM_STATE` property for each managed window. Use
the cached state to determine if window is fullscreen instead of
querying the Xserver every time.
…ATE` in string

New predefined target `wm_state` for rule-based matching. Matches
against the cached `_NET_WM_STATE` property of a window in string
representation.

NOTE: `wm_state = 'fullscreen'` is not neccessarily identical to
`fullscreen`, and `wm_state = 'focused'` is not identical to `focused`.
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codecov bot commented Nov 29, 2020

Codecov Report

Merging #549 (dac6785) into next (fb38bf0) will increase coverage by 0.28%.
The diff coverage is 50.00%.

Impacted file tree graph

@@            Coverage Diff             @@
##             next     #549      +/-   ##
==========================================
+ Coverage   38.21%   38.50%   +0.28%     
==========================================
  Files          46       46              
  Lines        9056     9123      +67     
==========================================
+ Hits         3461     3513      +52     
- Misses       5595     5610      +15     
Impacted Files Coverage Δ
src/atom.h 100.00% <ø> (ø)
src/common.h 66.66% <ø> (ø)
src/win.h 50.00% <ø> (ø)
src/c2.c 36.70% <34.16%> (+1.37%) ⬆️
src/win.c 69.51% <95.45%> (+0.39%) ⬆️
src/event.c 69.97% <100.00%> (+0.33%) ⬆️
src/picom.c 68.79% <100.00%> (+0.39%) ⬆️

w->wm_state = wid_get_prop_wm_state(ps, w->client_win);

if (w->wm_state != wmstate_old) {
win_on_factor_change(ps, w);
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Should set the FACTOR_CHANGE flag instead.

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@tryone144 tryone144 Nov 29, 2020

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Right, missed that one. Same would apply in win_update_wintype() above.

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While we're at it: I think win_update_opacity_target can be replaced as well.

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yshui commented Nov 29, 2020

@tryone144 Can you separate the "matching against all indices" commit into a different PR? The other commits look fine, but I want to avoid the 10 properties hard limit if we can.

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tryone144 commented Nov 29, 2020

@tryone144 Can you separate the "matching against all indices" commit into a different PR? The other commits look fine, but I want to avoid the 10 properties hard limit if we can.

I wasn't sure if I should split them, since the new rule makes use of that feature.
We can discuss the hardcoded limit in that PR.

EDIT: split into #550.

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yshui commented Nov 29, 2020

@tryone144 the new rule doesn't have to use that feature, I think?

@tryone144 tryone144 changed the title Cache _NET_WM_STATE property and add rule target; extend rule-matching to any value in property array Cache _NET_WM_STATE property and add rule target wm_state Nov 29, 2020
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Feature request: add predefined targets for sticky and hidden

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