Section “Troubleshooting” in Application Usage - LilyPond

Chapter 4: External programs 38
gconftool-2 -t string -s /desktop/gnome/url-handlers/textedit/command "lilypond-invoke-edito
gconftool-2 -s /desktop/gnome/url-handlers/textedit/needs_terminal false -t bool
gconftool-2 -t bool -s /desktop/gnome/url-handlers/textedit/enabled true
After that invocation,
gnome-open textedit:///etc/issue:1:0:0
should call ‘lilypond-invoke-editor’ for opening files.
Using GNOME 3
In GNOME 3, URIs are handled by the ‘gvfs’ layer rather than by ‘gconf’. Create a file in a
local directory such as ‘/tmp’ that is called ‘lilypond-invoke-editor.desktop’ and has the
contents
[Desktop Entry]
Version=1.0
Name=lilypond-invoke-editor
GenericName=Textedit URI handler
Comment=URI handler for textedit:
Exec=lilypond-invoke-editor %u
Terminal=false
Type=Application
MimeType=x-scheme-handler/textedit;
Categories=Editor
NoDisplay=true
and then execute the commands
xdg-desktop-menu install ./lilypond-invoke-editor.desktop
xdg-mime default lilypond-invoke-editor.desktop x-scheme-handler/textedit
After that invocation,
gnome-open textedit:///etc/issue:1:0:0
should call ‘lilypond-invoke-editor’ for opening files.
Extra configuration for Evince
If gnome-open works, but Evince still refuses to open point and click links due to denied permissions,
you might need to change the Apparmor profile of Evince which controls the kind of
actions Evince is allowed to perform.
For Ubuntu, the process is to edit the file ‘/etc/apparmor.d/local/usr.bin.evince’ and
append the following lines:
# For Textedit links
/usr/local/bin/lilypond-invoke-editor Cx -> sanitized_helper,
After adding these lines, call
sudo apparmor_parser -r -T -W /etc/apparmor.d/usr.bin.evince
Now Evince should be able to open point and click links. It is likely that similar configurations
will work for other viewers.
Enabling point and click
Point and click functionality is enabled by default when creating PDF files.
The point and click links enlarge the output files significantly. For reducing the size of PDF
and PS files, point and click may be switched off by issuing
\pointAndClickOff
in a ‘.ly’ file. Point and click may be explicitly enabled with