Dash - Previews for many file types not yet working

[John Lea]

The file previews is missing support for many file types. Ideally the Dash File Preview we will support previewing all the file types supported by preview applications like Gloobus ( http://gloobus.net/gloobus-preview/ ) or Gnome Sushi e.g.

Images: jpeg / png / icns / bmp / svg / gif / psd / xcf
Documents: pdf / cbr / cbz / doc / xls / odf / ods / odp / ppt
Source Code: c++ / c# / java / javascript / php / xml / log / sh / python
Other: folders / ttf / srt / plain text

[Andreas E. (andreas-e)]

Especially one would expect a simple fallback to the freedesktop thumbnail specs:
Imagine a file that is (as of now) not supported by Unity Previews: "Untitled.skp".
This file does have a thumbnail in ~/.cache/thumbnails/normal
It even has a large thumbnail in ~/.cache/thumbnails/large

Although the dash can't make a preview itself, it should use the existing large image instead of a generic file format icon.

[Will Cooke (willcooke)]

As part of the big bug clear up for 16.04 we have reviewed this bug and we will not be working on it in the near future. Sorry we can't offer you a fix. We will of course review patches if anyone submits them. Please stop by IRC to discuss this option.