thunar | Mirror repository , PRs are not watched , please use Xfce

I have implemented a Xdnd drop support implementation in VTK some time ago. It was working great except with Thunar file manager. All other file managers were working fine at the time. We dismissed this limitation a Thunar bug at the time.

The feature I implemented was very simple:

• Set the window of the application to be XdndAware
• Receive the position message and respond that we are ready to receive
• Receive the drop mesage and request a selection
• Receive the selection notify and recover the URI
• Convert the URI into something we can work with

Nothing fancy, I did not even touch the list type.

Fast forward a few years and now dolphin users cannot drop files correctly into our application. The URI is always the first file dropped since dolphin was started. Restarting our application has no effect. No bug at all with pcmanfm.

This is not a dolphin bug and files can be dropped on blender or firefox from dolphin without issues.

So there must be a bug in our implementation, but I've been staring at the code for some time and everything I tried had no effect, except for breaking Xdnd support completely.

Here are the interesting part of the implementation:

I'm using XMonad in combination with xmobar, and I'm having an issue with workspaces displayed on xmobar not being sorted numerically. Because workspace ID's are ultimately strings, they get sorted lexicographically. So, provided that I have 12 workspaces, they are sorted as 1 10 11 12 3 4 5 6 7 8 9, instead of 1 2 3 4 5 6 7 8 9 10 11 12. I think marshallPP is the culprit because prior to introducing independent screens, the workspaces were displayed correctly without ppSort. I know there is mkWsSort that creates a sorting function from a comparison function, however, I'm not sure how would I write the comparison function. This is my config:

I want to write a short program, which triggers the Thumbnail creation for all pictures on my network share recursively (e.g. over night) - so that when I access a folder in Thunar, the thumbs are displayed immediately.

I would say, that when I can access the API via gdbus call, then the system is setup correctly:

I am trying to add support for per-directory viewing settings to the Thunar file browser of the Xfce desktop. So for example if a user chooses to view the contents of a directory as a list rather than as a grid of icons, this setting is remembered for that directory and will be used whenever that directory is viewed.

Now Thunar is built on GLib, and the mechanism we have chosen to use to implement this is to store metadata using GFile attributes, using methods like g_file_set_attributes_async to store keys with names such as "metadata::thunar-view-type". The per-directory feature can be turned on or off by the user via a checkbox in a preferences dialog. My knowledge of GIO and GLib is pretty limited, but I have now managed to get this all working as desired (you can see my merge request here if you are interested).

Now as I understand it, the functionality that I am using here relies on something called "GVfs metadata", and as I understand it this might not be available on all systems. On systems where GVfs metadata is not available, I want to turn this functionality off and in particular make the checkbox in the preferences dialog insensitive (i.e. greyed out). Thus I need to write a function to detect if gvfs metadata support is available, by which I mean whether I can use functions like g_file_set_attributes_async to successfully save metadata so that it will be available in future.

Thunar is written in C, so this function needs to be written in C using the C API for GLib, GIO, etc. The function I have come up with (from much reading of API documentation, modifying code scraps I have found, and experimentation) is as follows.

Following my previous question which got closed— basically I have a script that check availability of packages on target server, the target server and the packages have been stored to an array.