Systray composition support #3664
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xinhaoyuan
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Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## master #3664 +/- ##
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+ Coverage 90.65% 91.18% +0.53%
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Files 854 927 +73
Lines 54774 59629 +4855
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+ Hits 49653 54372 +4719
- Misses 5121 5257 +136
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xinhaoyuan
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| /* warn("Fixing the background of the systray window 0x%x possibly because the client does not support composition.", embed_win); */ | ||
| xcb_change_window_attributes(globalconf.connection, embed_win, XCB_CW_BACK_PIXEL, | ||
| (const uint32_t []){ globalconf.systray.background_pixel }); | ||
| xcb_clear_area(globalconf.connection, 1, embed_win, 0, 0, 0, 0); |
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Uhm, what? I do not understand the reason behind this whole code block. If some window has a different depth.... so be it. I do not see anything in https://specifications.freedesktop.org/systemtray-spec/systemtray-spec-0.3.html or https://specifications.freedesktop.org/xembed-spec/xembed-spec-latest.html allowing to do this. Do other tray compositing managers do this?
(Basically same comment below to the code that handles changes to globalconf.systray.background_pixel)
Oh also: This might warrant a comment in the code. It just occurred to me that:
- legacy systray clients use a ParentRelative backgroud
- reparenting such a window into a window with a different depth does not work
- thus, this is here to "make things work"
(But what about all the other window properties that are needed for a different depth window? According to https://stackoverflow.com/questions/3645632/how-to-create-a-window-with-a-bit-depth-of-32, one also needs to set a colormap and a border pixel/border pixmap. Why doesn't this code need that?)
tests/test-systray.c
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| XCB_ATOM_VISUALID, 0, 1), | ||
| NULL); | ||
| tray_visual_id = screen->root_visual; | ||
| if(xcb_get_property_value_length(tray_visual_r)) { |
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if(tray_visual_r != NULL && xcb_get_property_value_length(tray_visual_r)) {In theory, this also needs to check for a 32 bit value and length > 0... but, whatever.
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Ah, right after pressing "submit", I find it: https://specifications.freedesktop.org/systemtray-spec/systemtray-spec-0.3.html#visuals
Okay. (I do not think there is much of a difference between background pixmap and background pixel, so, whatever.) |
xinhaoyuan
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…s without it. Add a beautiful.systray_skip_bg to skip background drawing, so it can blend nicely with other widgets.
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oh wow, wasn't expecting someone to actually pick that, many thanks 🔥 |
| ? get_color(conn, cm, 0xffff, 0x9999, 0x0000) | ||
| : XCB_BACK_PIXMAP_PARENT_RELATIVE, | ||
| screen->black_pixel, cm | ||
| }); | ||
| xcb_change_property(conn, XCB_PROP_MODE_REPLACE, window, _XEMBED_INFO, _XEMBED_INFO, 32, 2, (uint32_t[]) { 0, 1 }); | ||
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| // Make our window a systray icon |
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i guess the comment itself should move together with the corresponding line
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restarting to unstuck the CI |
This allows systray to be rendered consistently in the widget hierarchy with proper shape and transparency.
The default appearance should stay the same, while the newly introduced beautiful.systray_skip_bg allows skipping the boring systray background.