GNOME Bugzilla – Bug 700643
Allow creating custom tree models
Last modified: 2018-01-27 11:53:21 UTC
I don't know why, because the treemodel API is definitely not JS friendly, but apparently developers would like to build GtkTreeModels in JS, without extending or wrapping ListStore/TreeStore. (https://live.gnome.org/NikitaChuraev/GlaringGjsApiIssues) AFAIK, the only thing blocking it is that GtkTreeIter does not have a constructor, and we prevent simple construction of structures with pointer fields. This is correct for complex pointer fields, as we cannot memory manage them, but for opaque pointers just having them always null should be fine. I also prepared a patch that introduces marshalling of gpointer (so that you can use the rest of GtkTreeIter), but the more I look at it, the less I like it...
Created attachment 244719 [details] [review] boxed: mark structs with gpointer fields as simple Even if we cannot set the field, it's pretty safe to initialize it to NULL, and then you can use the rest of the structure. This enables construction of Gtk.TreeIter, even if limited to stamp.
Created attachment 244720 [details] [review] Add support for marshalling void* void pointers are sometimes used for tags, such as in GtkTreeIter, so it is useful to have basic marshalling implemented. Note that they're treated like integers, and marshalled as doubles in 64-bit arches, so there is no memory management involved.
*** Bug 690780 has been marked as a duplicate of this bug. ***
Cosimo, my notes from when we were talking about this bug say "better solved with some kind of override" but now I can't remember what our plan was :-(
-- GitLab Migration Automatic Message -- This bug has been migrated to GNOME's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.gnome.org/GNOME/gjs/issues/71.