Improve support for XDG Intents

Sebastian Wickrequested to merge
swick/glib:wip/intents into main

Related to: !4119 (closed)

This allows to

  • Query a GDesktopAppInfo for supported intents
  • Looking up supported intents in a certain scope with priority (defined in the draft intent-apps spec)
  • Using the intent.cache cache file for lookups instead of iterating over all desktop files (will be added to the intent-apps spec)
  • Using the Terminal intent (draft spec) to launch the default terminal for GDesktopAppInfos which require a terminal

The specs this implements are all drafts, but someone has to make the first step. I will open new PRs for the intent-apps and terminal-intent specs later which align with what the MR here does.

https://gitlab.freedesktop.org/xdg/desktop-file-utils/-/merge_requests/27 implements the logic for updating intent.cache via the update-desktop-database command.

Ptyxis has support a MR for adding the Terminal intent chergert/ptyxis!119 (comment 2545725), so this feature can be tested end-to-end.

Edited by Sebastian Wick

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