Ignis latest repo version lags, while aur version works well

[lost-melody]

I used to use Ignis aur version, and everything runs well.

But when I tried to use the latest repo version (0028b64266d868c89965bae4ae05199fb866b8e1), I noticed that Ignis lags a lot. Here's how I installed and launched it:

# install
python -m venv venv
source venv/bin/activate.fish
pip install git+https://github.com/linkfrg/ignis.git
# launch
python venv/bin/ignis init
# launch examples/bar
python venv/bin/ignis init -c ignis/examples/bar/config.py

When I'm using the repo version, ignis runs slowly; like when I move the cursor to some widget, its :hover css styles applies after a several-second latency; the tray icons does not display; the audio module keeps displaying "None"; and when I click a Button or an EventBox its reactions are also very laggy. Even when I'm using with the examples/bar/config.py it lags also.

When I deactivate venv and launch the aur version, everything's ok: tray icons, active window, audio. I'm not expert in python or gtk; if more information is needed please let me know.

Here's the systeminfo collected by the aur version:

Ignis 0.4
Branch: 
Commit: 68793e07a47e253f76dd8feb67c5357c93b696f2 (version: bump to 0.4)
Current desktop: niri

os-release:
NAME="Arch Linux"
PRETTY_NAME="Arch Linux"
ID=arch
BUILD_ID=rolling
ANSI_COLOR="38;2;23;147;209"
HOME_URL="https://archlinux.org/"
DOCUMENTATION_URL="https://wiki.archlinux.org/"
SUPPORT_URL="https://bbs.archlinux.org/"
BUG_REPORT_URL="https://gitlab.archlinux.org/groups/archlinux/-/issues"
PRIVACY_POLICY_URL="https://terms.archlinux.org/docs/privacy-policy/"
LOGO=archlinux-logo

repo version

Ignis 0.4.dev0
Branch: main
Commit: 0028b64266d868c89965bae4ae05199fb866b8e1 (fix(tray): add icon theme of item to search path (#120)

Co-authored-by: Link <[email protected]>)
Current desktop: niri

os-release:
NAME="Arch Linux"
PRETTY_NAME="Arch Linux"
ID=arch
BUILD_ID=rolling
ANSI_COLOR="38;2;23;147;209"
HOME_URL="https://archlinux.org/"
DOCUMENTATION_URL="https://wiki.archlinux.org/"
SUPPORT_URL="https://bbs.archlinux.org/"
BUG_REPORT_URL="https://gitlab.archlinux.org/groups/archlinux/-/issues"
PRIVACY_POLICY_URL="https://terms.archlinux.org/docs/privacy-policy/"
LOGO=archlinux-logo

also I failed at meson compile -C build when I tried to follow the Setting up a Development Environment

INFO: autodetecting backend as ninja
INFO: calculating backend command to run: /usr/bin/ninja -C /home/lost-melody/Documents/Github/ignis/build
ninja: Entering directory `/home/lost-melody/Documents/Github/ignis/build'
[1/2] Generating subprojects/gvc/Gvc-1.0.gir with a custom command (wrapped by meson to set env)
FAILED: subprojects/gvc/Gvc-1.0.gir 
env PKG_CONFIG_PATH=/home/lost-melody/Documents/Github/ignis/build/meson-uninstalled PKG_CONFIG=/usr/bin/pkg-config CC=cc /usr/bin/g-ir-scanner --quiet --no-libtool --namespace=Gvc --nsversion=1.0 --warn-all --output subprojects/gvc/Gvc-1.0.gir -DWITH_INTROSPECTION --quiet -I/home/lost-melody/Documents/Github/ignis/subprojects/gvc -I/home/lost-melody/Documents/Github/ignis/build/subprojects/gvc --filelist=/home/lost-melody/Documents/Github/ignis/build/subprojects/gvc/libgvc.so.p/Gvc_1.0_gir_filelist --include=Gio-2.0 --include=GObject-2.0 --cflags-begin -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/sysprof-6 -D_REENTRANT -I/usr/include/gobject-introspection-1.0 --cflags-end --add-include-path=/usr/share/gir-1.0 -L/home/lost-melody/Documents/Github/ignis/build/subprojects/gvc --library gvc -lgio-2.0 -lgobject-2.0 -lglib-2.0 -lpulse -lpulse-mainloop-glib -lgirepository-1.0
Traceback (most recent call last):
  File "/usr/bin/g-ir-scanner", line 99, in <module>
    from giscanner.utils import dll_dirs
  File "/usr/lib/gobject-introspection/giscanner/utils.py", line 385, in <module>
    import distutils.cygwinccompiler
ModuleNotFoundError: No module named 'distutils'
ninja: build stopped: subcommand failed.

[lost-melody]

After some testing, I found that it's related to #118.

Ignis does not lag if TrayService is not initialized, or if LocalSend is not present; it lags when both Tray and LocalSend are present: launching LocalSend with Tray present, or initializing Tray with LocalSend present.

Edit:

The lag will not happen if I commet out these lines in ignis/services/system_tray/item.py:

         icon_theme_path: str | None = self.__dbus.IconThemePath
         if icon_name:
             self._icon = icon_name                                                                                                                  
             if not self._icon_theme.has_icon(icon_name) and icon_theme_path is not None:
                 # infinite loop here
                 self._icon_theme.add_search_path(icon_theme_path)

[linkfrg]

fixed by 2bce0d4