How to change gtk file chooser to pcmanfm-qt ?

[ildar-ceo]

Hello!

How I can change save and open dialog in firefox browser to pcmanfm-qt ?
The firefox use GtkFileChooserDialog, but i can't find how I can change it to pcmanfm.

I try to execute:

xdg-mime default pcmanfm-qt.desktop application/x-gnome-saved-search
xdg-mime default pcmanfm-qt.desktop x-directory/normal
xdg-mime default pcmanfm-qt.desktop x-directory/gnome-default-handler
xdg-mime default pcmanfm-qt.desktop x-scheme-handler/file
xdg-mime default pcmanfm-qt.desktop inode/directory

But it didn't help.

[tsujan]

Contrary to KDE, LXQt doesn't provide any file dialog but uses the default Qt one.

Firefox should have a config key for that dialog in its about:config but I don't remember its name.

Anyhow, this is a Firefox question and you could google for it.

[ildar-ceo]

Anyhow, this is a Firefox question

I do not think so. The chrome have the same problem.
Two weeks ago Firefox and Chrome use pcmanfm, but something happened and save dialog was changed.
And I still can not to restore the old settings.

[tsujan]

Two weeks ago Firefox and Chrome use pcmanfm

They didn't use "pcmanfm" but the old dialog -- as I said, pcmanfm-qt provides no file dialog -- and after the update, they use the new gtk3 dialog.

[ildar-ceo]

Why then in KDE was another save file dialog, and when I installed lxqt the save file dialog have been changed?

[ildar-ceo]

I'm something understand.
I create python script http://python-gtk-3-tutorial.readthedocs.io/en/latest/dialogs.html#id2
And I got two different result:
Screenshot dialog from python script
Screenshot dialog from Geany
Why it's different?

[ildar-ceo]

I understand!

Chrome and firefox use Gtk3.
Geany use Gtk2.
Kate, vlc use Qt.

The Gtk3, Gtk2, Qt have different dialogs.
It's wrong if aplications have different design.
How to force use same file open/save dialog?

[palikacska]

GTK3 file dialog (aka. gtk3-file-chooser) is bloated, slow thus completely unusable particularly on low-end computers like old laptops and microcomputers like Raspberry PI where lightweight DEs like LXQt is preferred. It has been dumbed down even compared to the GTK2 version. It can't even remember the order of bookmarks, they always appear in random order, forces annoying animations, forcibly uses uncolored unrecognizable wireframe icons and pushes the tablet/smartphone feeling down your throat which is among the single most unwanted things that you would expect on a desktop computer. It starts with a black flash spectacular enough to know that it has been implemented in the worst, most hackish, dysfunctional, unprofessional way. There are a bunch of reasons not to use that dysfunctional pile of shit.

Unfortunately, idealist Google and Firefox developers have chosen the Gtk3 menace to integrate with but fortunately enough the Gtk3 library provides a way for the desktop environment to use an alternative file dialog. Theoretically this is possible via GtkFileChooserNative. As far as I know Google Chrome and Firefox use this call to display a file dialog. That's why under KDE they display the KDE File Chooser.

It would be great if this could be implemented somehow into LXQt to provide pcmanfm-qt or some Qt-based file dialog in place of the well ruined Gtk3 File Chooser.

[tsujan]

it would be great if this could be implemented somehow into LXQt to provide pcmanfm-qt or some Qt-based file dialog in place of the well ruined Gtk3 File Chooser.

It seems you don't use LXQt. This page is old and LXQt has had its own file dialog for a long time.

[stefonarch]

I'd like never to see again GtkFileChooserDialog so if LXQt could force somehow firefox, brave (chromium) and thunderbird using it's own file dialog...

[tsujan]

No one could make Firefox, Chromium,.. use the native Qt file dialog except for their devs ;)

The Qt platform integration can provide a "native file dialog" -- as in LXQt and KDE -- and all Qt apps will use it if they don't enforce the non-native Qt file dialog but GTK apps are different. Old versions of Firefox could use it with a trick but that's not the case anymore.

BTW, this reminds me of a feature missing from LXQt file dialog: file filtering. It shouldn't be hard to implement and would be very useful; I'll open an issue for it and self-assign.

[stefonarch]

I remember there was a wrapper years ago in KDE, but didn' work perfectly
EDIT: It still exists...
https://superuser.com/a/1373504

[tsujan]

EDIT: It still exists...

No, it doesn't.

[stefonarch]

https://aur.archlinux.org/packages/kgtk/

[tsujan]

Too old and even when it was usable, its focus was on KDE file dialog.