Benedikt Meurer wrote: > Erlend Davidson wrote: > >> I want to include a simple PDF thumbnailer for thunar, which uses >> ImageMagick. I know there is already one, but it depends on evince >> being installed which would require a number of gnome libraries - not >> everyone wants to do this, especially not for a simple thumbnail. >> >> The trouble is if I include a thumbnailer which supports a format >> already supported by an existing thumbnailer - what happens? I presume >> mine (being added to the system later) would override thunar's default, >> which probably isn't the intended option. If you have evince installed >> then I would say it is the best (fastest) means of thumbnailing a PDF. >> >> This this in mind I want to propose to Benedict that the .desktop files >> for each thumbnailer have another field: >> X-Thumbnailer-Priority >> which is a number: 1 being a low priority and anything above that >> increasingly higher priority. The default priority for any thumbnailer >> in thunar should be 10, that way when I want to include (for example) >> the PDF thumbnailer I can set the priority to be 5... when >> /usr/libexec/thunar-vfs-update-thumbnailers-cache-1 is run by the user >> the highest priority thumbnailers which have their TryExec found will be >> added to the thumbnailer cache. >> >> For example if evince is not installed and >> /usr/libexec/thunar-vfs-update-thumbnailers-cache-1 is run it, >> 1. looks at both thunar-thumbnailers' and thunar's (evince) .desktop files >> 2. sees that evince has a higher priority (because it is faster it >> should be given the higher priority) >> 3. sees that evince-thumbnailer is not on tha $PATH, so uses the >> thumbnailer with the next highest priority. >> >> This seems like the simplest solution to me, as it only requires the >> thunar-vfs-update-thumbnailers-cache-1 command to be updated. >> >> This also fixes a problem caused by ffmpeg-thumbnailer, which can >> override totem-thumbnailer. >> > > The GNOME thumbnailers are used by default. Any thumbnailer installed > via a .desktop file overrides a conflicting GNOME thumbnailer. But what if, as in the case for a pdf/ffmpeg thumbnailer I want to under-ride (as a fallback) the gnome ones?
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