Add image viewer, video player and PDF viewer defaults to the menu

docs/commands.md

@@ -128,7 +128,11 @@ of the `blob` listing.
 | --- | --- | --- |
 | `blob-default-browser` | Set the default browser for Blob and XDG handlers | [chromium\|chrome\|brave\|brave-origin\|edge\|firefox\|zen] |
 | `blob-default-editor` | Set the default editor used by blob-launch-editor | [code\|cursor\|zed\|sublime_text\|helix\|vim\|emacs\|nvim] |
+| `blob-default-image-viewer` | Set the default image viewer | [loupe\|imv\|eog\|gwenview] |
+| `blob-default-mime` | Get or set the application that opens one group of file types (hidden) | <image\|video\|pdf\|document\|spreadsheet\|presentation\|text\|archive> [desktop-id] |
+| `blob-default-pdf-viewer` | Set the default PDF and document viewer | [evince\|papers\|okular\|zathura\|firefox\|chromium] |
 | `blob-default-terminal` | Set the default terminal used by xdg-terminal-exec | [alacritty\|foot\|ghostty\|kitty] |
+| `blob-default-video-player` | Set the default video and audio player | [mpv\|vlc\|celluloid\|totem] |
 
 ## disk
 

docs/install.md

@@ -19,7 +19,7 @@ with `--check`.
 | `install/steps/services.sh` | system services, systemd drop-ins, user units |
 | `install/steps/boot.sh` | the Plymouth boot splash, GRUB, and other-OS detection |
 | `install/steps/theme.sh` | the wallpaper link, the first theme, the first background |
-| `install/steps/apps.sh` | default applications for images, video, PDFs and office files |
+| `install/steps/apps.sh` | default applications for images, video, PDFs, office files, text and archives, with the file types read from `default/mime/` |
 | `install/steps/login.sh` | SDDM, the session entry, and the first launch |
 | `install/steps/reload.sh` | reloading systemd, the user services, and a running session |
 
@@ -66,7 +66,10 @@ with `--check`.
    images, `mpv` for video and audio, `evince` for PDFs and other documents, LibreOffice for
    documents, spreadsheets and presentations, GNOME Text Editor for text, and
    File Roller for archives. A file type that already has a
-   default there is left alone. See [packages.md](packages.md#desktop-applications).
+   default there is left alone. The file types for each group are listed in
+   `default/mime/<group>.types`, and Setup > Defaults in the Blob menu changes
+   the image viewer, video player and PDF viewer later. See
+   [packages.md](packages.md#desktop-applications).
    `~/.bashrc` gets one line sourcing `session/bashrc`. The line is added once,
    a `.bak` is kept, and a `~/.bashrc` that already has it is left alone.
    `session/profile.sh` also goes to `/etc/profile.d/blob.sh`, which sources

docs/packages.md

@@ -180,7 +180,21 @@ the next boot, or now with `sudo systemctl start netbird@main`.
 `install.sh` makes them the default for their file types through `xdg-mime`,
 which writes `~/.config/mimeapps.list`. A type that already has a default in
 that file is left alone, so a choice you made yourself always wins, and an app
-that is not installed is skipped.
+that is not installed is skipped. The file types for each group are listed once, in
+`default/mime/<group>.types`, and read by both the installer and
+`blob-default-mime`.
+
+To change them later, use Setup > Defaults in the Blob menu, which has Image
+Viewer, Video Player and PDF Viewer next to Browser, Terminal and Editor, or:
+
+```
+blob default image-viewer imv
+blob default video-player vlc
+blob default pdf-viewer zathura
+```
+
+Each lists only the apps it knows, shows only the installed ones in the menu,
+and sets the whole group of file types at once.
 
 ## The boot splash