Re: Konqueror and embedded viewers

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On 3/18/25 2:44 PM, WraithGlade via tde-users wrote:
Anyway though, today seems like a wonderful spring day (at least where I am) and I intend to enjoy it. The sunlight is good for the body and the mind. And, on that note, I am wishing you all (the TDE community) all the best today/tonight!

I too spend some hours outside this afternoon. The forecast is calling for snow tomorrow though. :(

I found some helpful clues about the Konqueror embedded viewing behavior.

One side note is the user's profilerc has nothing to do with the embedding issue. That file is used only to organize the user's external app preferences. For example, KWrite is the default text editor rather than Kate. If the user changes that order then profilerc gets created. The profilerc does not exist if the user accepts all default preferences.

The easiest embedded viewer change is modifying image viewing behavior. In KControl->TDE Components->File Associations, all parent groups default to 'Show file in separate viewer' except the Image group that defaults to 'Show file in embedded viewer'. To avoid embedded viewing, toggle the parent setting to 'Show file in separate viewer'. Thereafter double-clicking on image files launch the user's preferred image viewer. Toggling that option creates an entry in the user's $TDEHOME/config/konquerorrc file:

[EmbedSettings]
embed-image=false

Toggling other parent groups will create similar konquerorrc entries of false|true. There is a comment in the tdebase code that inode mimetypes should always be embedded. Probably best to leave those associations as is.

I don't know where the Image group embedded viewer default behavior is configured in the code or desktop files. I think this is a hard-coded presumption.

The archive mimetypes are more complicated.

In tdebase/libkonq/konq_settings.cpp:158 is a comment:

// Embedding is false by default except for image/* and for zip, tar etc.

In tdebase/kcontrol/filetypes/typeslistitem.cpp:116 is another comment:

// embed by default for zip, tar etc.

The associated code looks for the 'X-TDE-LocalProtocol' property in the *.desktop file. Several archive related desktop files have this property. So all of them are viewed embedded.

On my system (not a full install), there are 11 archive related desktop files containing the 'X-TDE-LocalProtocol' property:

$TDEDIR/share/mimelnk/application/x-mimearchive.desktop
$TDEDIR/share/mimelnk/application/x-tar.desktop
$TDEDIR/share/mimelnk/application/x-tarz.desktop
$TDEDIR/share/mimelnk/application/x-tbz.desktop
$TDEDIR/share/mimelnk/application/x-tgz.desktop
$TDEDIR/share/mimelnk/application/x-tlz.desktop
$TDEDIR/share/mimelnk/application/x-tlzma.desktop
$TDEDIR/share/mimelnk/application/x-txz.desktop
$TDEDIR/share/mimelnk/application/x-webarchive.desktop
$TDEDIR/share/mimelnk/application/x-zip.desktop
$TDEDIR/share/mimelnk/fonts/package.desktop

On my system there are 22 more archive mimetypes that do not use the 'X-TDE-LocalProtocol' property:

$TDEDIR/share/mimelnk/application/x-7z.desktop
$TDEDIR/share/mimelnk/application/x-ace.desktop
$TDEDIR/share/mimelnk/application/x-arc.desktop
$TDEDIR/share/mimelnk/application/x-archive.desktop
$TDEDIR/share/mimelnk/application/x-arj.desktop
$TDEDIR/share/mimelnk/application/x-bz2dvi.desktop
$TDEDIR/share/mimelnk/application/x-bzip.desktop
$TDEDIR/share/mimelnk/application/x-bzip2.desktop
$TDEDIR/share/mimelnk/application/x-compress.desktop
$TDEDIR/share/mimelnk/application/x-cpio.desktop
$TDEDIR/share/mimelnk/application/x-gzdvi.desktop
$TDEDIR/share/mimelnk/application/x-gzip.desktop
$TDEDIR/share/mimelnk/application/x-gzpostscript.desktop
$TDEDIR/share/mimelnk/application/x-lha.desktop
$TDEDIR/share/mimelnk/application/x-lzip.desktop
$TDEDIR/share/mimelnk/application/x-lzma.desktop
$TDEDIR/share/mimelnk/application/x-lzop.desktop
$TDEDIR/share/mimelnk/application/x-pak.desktop
$TDEDIR/share/mimelnk/application/x-rar.desktop
$TDEDIR/share/mimelnk/application/x-tzo.desktop
$TDEDIR/share/mimelnk/application/x-xz.desktop
$TDEDIR/share/mimelnk/application/x-zoo.desktop

Those 22 mimetypes can be identified together using the desktop file key 'Icon=application-x-tarz'. I notice in the File Association dialog for these individual archive mimetypes the option 'Use settings for application group' is disabled/ghosted. The only option is to manually toggle to 'Show file in separate viewer'. I don't know where this is configured but I suspect hard-coded.

I do not have a full TDE install, but on my system I found 75 desktop files explicitly using 'X-TDE-AutoEmbed=true' that are not image or archive mimetypes. Likely there are more files with a full install. This individual option overrides the parent group rule. Those related to my personal inconvenience include:

$TDEDIR/share/mimelnk/application/postscript.desktop
$TDEDIR/share/mimelnk/application/pdf.desktop
$TDEDIR/share/mimelnk/application/x-jar.desktop
$TDEDIR/share/mimelnk/application/x-rpm.desktop

Excluding options such the Konqueror "right-click" context menu, in my usage that is more than three dozen mimetypes that have to be modified manually to avoid embedded viewing when I double-click on a respective file. That is a lot of dialog walking and mouse button clicking. That number might explain why I have been frustrated with the default embedded behavior. :)

I understand some of the decisions from days of lore. Ark and image viewers are not installed as part of tdebase. Theoretically users could have a minimal install leaving them with no external viewers. So embedded viewing makes some sense.

Any time the user modifies a mimetype embedded/separate viewer defaults, there will be respective xyz.desktop group file created in $TDEHOME/share/mimelnk. Those files will contain 'X-TDE-AutoEmbed=false'.

On a single user basis, resolving the embedded image file viewing is a one-click fix.

Short of editing all related system archive desktop files with explicitly adding 'X-TDE-AutoEmbed=false', seems the only way to use Ark for archive mimetypes is manually change the behavior in the File Associations dialog. Likewise with some of the hard-coded embedded viewing mimetypes such as pdf.

I did not see a way to change default behavior other than walking through the file association dialog tree to toggle the default embedding behavior. Time consuming. From an admin perspective I wrote myself a shell script to create the required mimelnk desktop files and avoid manually walking through the dialog. The script works nicely. In about 5 seconds I save much time and avoid frustration.

If using external viewers for these mimetype files is desired to be a global behavior for all user accounts, then the mimelnk desktop files should be copied to a common $TDEDIRS directory. That environment variable is not active by default and requires an admin to expend some energy. The starttde script also needs attention because that variable is ignored.

Being an old school grumpy old man means I am unlikely to quash my dislike of embedded viewing. I now know that somebody long ago decided image, archive, and a handful of other mimetype files should be viewed embedded. My shell script quickly overrides that presumption. So for me, finally, some peace of mind. :)

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