** Changed in: gnome-shell (Ubuntu)
Status: Incomplete => Won't Fix
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https://bugs.launchpad.net/bugs/1457689
Title:
relative path resolution is incorrect in imported CSS files used in
Gnome Shell themes
Status in GNOME Shell:
Confirmed
Status in gnome-shell package in Ubuntu:
Won't Fix
Bug description:
The CSS engine being used by Gnome Shell v3.14.4 for dealing with themes
seems to have broken behavior when:
* CSS file X is imported by another CSS file Y
* CSS file X uses relative paths via "url(...)" to refer to resources (such
as images or svg files)
In this situation, syslog records continuous "Error opening file: No
such file or directory" messages related to incorrect paths for the
resources refered to by relative url. The CSS engine seems to be
trying to resolve these relative paths with respect to the user's home
directory, instead of relative to the path of the included CSS file
where the the "url(...)" declaration exists (per sec 6.4 of the w3c
REC-CSS1 specification: http://www.w3.org/TR/REC-CSS1/#url ).
NOTE: as far as I can tell, the theme still *looks* correct, suggesting that
perhaps the CSS engine is in fact finding these resources in the correct paths,
*after* logging these errors?
This bug did not exist in the previous version I upgraded from: Gnome Shell
v3.4.1
I discovered this bug because I use a "custom" theme which includes
the gnome-shell.css file from default theme and then overrides a few
select properties -- as mentioned, this worked fine with Gnome Shell
v3.4.1.
Steps to reproduce:
1) Install Ubuntu-Gnome 15.04 containing Gnome Shell 3.14.4
$ lsb_release -rd
Description: Ubuntu 15.04
Release: 15.04
$ uname -a
Linux tray 3.19.0-16-generic #16-Ubuntu SMP Thu Apr 30 16:09:58 UTC 2015
x86_64 x86_64 x86_64 GNU/Linux
$ gnome-shell --version
GNOME Shell 3.14.4
$ apt-cache policy gnome-shell
gnome-shell:
Installed: 3.14.4-0ubuntu1
Candidate: 3.14.4-0ubuntu1
Version table:
*** 3.14.4-0ubuntu1 0
500 http://us.archive.ubuntu.com/ubuntu/ vivid/universe amd64 Packages
100 /var/lib/dpkg/status
2) create a new user named "gnomeshellbug" and login as that user
3) create the following .themes directory for the gnomeshellbug
user...
$ find /home/gnomeshellbug/.themes/
/home/gnomeshellbug/.themes/
/home/gnomeshellbug/.themes/BuggyCssImportShellTheme
/home/gnomeshellbug/.themes/BuggyCssImportShellTheme/gnome-shell
/home/gnomeshellbug/.themes/BuggyCssImportShellTheme/gnome-shell/gnome-shell.css
$ cat
/home/gnomeshellbug/.themes/BuggyCssImportShellTheme/gnome-shell/gnome-shell.css
@import url("/usr/share/gnome-shell/theme/gnome-shell.css");
.panel-button {
/* not so much damn padding */
-natural-hpadding: 6px;
-minimum-hpadding: 4px;
}
4) Note that the imported file /usr/share/gnome-shell/theme/gnome-
shell.css mentioned above contains url refrences to files which exist
in the same /usr/share/gnome-shell/theme/ directory...
$ grep message-tray-background.png
/usr/share/gnome-shell/theme/gnome-shell.css
background: #2e3436 url(message-tray-background.png);
$ ls -l /usr/share/gnome-shell/theme/message-tray-background.png
-rw-r--r-- 1 root root 19246 Mar 23 16:13
/usr/share/gnome-shell/theme/message-tray-background.png
5) Use the tweak-tool to enable the "User Themes" extension
6) Use the tweak-tool to select BuggyCssImportShellTheme as the Shell
theme
7) observe log messages like these in syslog....
May 21 15:08:06 tray gnome-session[16490]: Gjs-Message: JS LOG: loading user
theme:
/home/gnomeshellbug/.themes/BuggyCssImportShellTheme/gnome-shell/gnome-shell.css
May 21 15:08:06 tray gnome-session[16490]: (gnome-shell:16670):
GdkPixbuf-WARNING **: GdkPixbufLoader finalized without calling
gdk_pixbuf_loader_close() - this is not allowed. You must explicitly end the
data stream to the loader before dropping the last reference.
May 21 15:08:06 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/message-tray-background.png: Error
opening file: No such file or directory
May 21 15:08:14 tray gnome-session[16490]: message repeated 4 times: [
(gnome-shell:16670): St-WARNING **: Failed to load
/home/gnomeshellbug/message-tray-background.png: Error opening file: No such
file or directory]
8) As you interact with the UI -- clicking on the menu's for example -- note
that many more similar error messages will start getting logged continuously...
May 21 15:08:20 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/panel-button-border.svg: Error opening
file: No such file or directory
May 21 15:08:20 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/panel-button-highlight-wide.svg: Error
opening file: No such file or directory
May 21 15:08:20 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/message-tray-background.png: Error
opening file: No such file or directory
May 21 15:08:20 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/panel-button-border.svg: Error opening
file: No such file or directory
May 21 15:08:20 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/panel-button-highlight-wide.svg: Error
opening file: No such file or directory
May 21 15:08:20 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/message-tray-background.png: Error
opening file: No such file or directory
May 21 15:08:20 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/panel-button-border.svg: Error opening
file: No such file or directory
May 21 15:08:20 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/panel-button-highlight-wide.svg: Error
opening file: No such file or directory
May 21 15:08:20 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/panel-button-border.svg: Error opening
file: No such file or directory
May 21 15:08:20 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/panel-button-highlight-wide.svg: Error
opening file: No such file or directory
May 21 15:08:20 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/panel-button-border.svg: Error opening
file: No such file or directory
May 21 15:08:20 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/panel-button-highlight-wide.svg: Error
opening file: No such file or directory
May 21 15:08:20 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/panel-button-border.svg: Error opening
file: No such file or directory
May 21 15:08:20 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/panel-button-highlight-wide.svg: Error
opening file: No such file or directory
May 21 15:08:20 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/panel-button-border.svg: Error opening
file: No such file or directory
May 21 15:08:20 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/panel-button-highlight-wide.svg: Error
opening file: No such file or directory
May 21 15:08:20 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/panel-button-border.svg: Error opening
file: No such file or directory
May 21 15:08:20 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/panel-button-highlight-wide.svg: Error
opening file: No such file or directory
May 21 15:08:20 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/panel-button-border.svg: Error opening
file: No such file or directory
May 21 15:08:20 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/panel-button-highlight-wide.svg: Error
opening file: No such file or directory
May 21 15:08:20 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/panel-button-border.svg: Error opening
file: No such file or directory
May 21 15:08:20 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/panel-button-highlight-wide.svg: Error
opening file: No such file or directory
May 21 15:08:23 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/panel-button-border.svg: Error opening
file: No such file or directory
May 21 15:08:23 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/panel-button-highlight-wide.svg: Error
opening file: No such file or directory
May 21 15:08:23 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/message-tray-background.png: Error
opening file: No such file or directory
May 21 15:08:25 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/panel-button-border.svg: Error opening
file: No such file or directory
May 21 15:08:25 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/panel-button-highlight-wide.svg: Error
opening file: No such file or directory
May 21 15:08:26 tray gnome-session[16490]: (gnome-shell:16670): St-WARNING
**: Failed to load /home/gnomeshellbug/message-tray-background.png: Error
opening file: No such file or directory
...
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