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Some GNOME Stuff

Submitted by Rianne Schestowitz on Saturday 4th of December 2021 08:57:37 AM Filed under
Development
GNOME
  • sizable news

    For the upcoming GTK 4.6, we have overhauled a lot of the sizing infrastructure to make widgets fit even tighter and to make sure our sizing infrastructure actually does what it says.

    When using the GtkWidget::halign or GtkWidget::valign properties, GTK 4.4 would look at the default size of the widget and then place the widget accordingly. This leaves a lot of extra space when one of the values was set to fill. In GTK 4.6, GTK will measure the size of the other dimension relative to the filled dimension. This makes the widget thinner but avoids extra space.

  • A Quick PSA on Writing Portal-friendly Application Code

    For various reasons, desktop applications sometimes need to know whether they are running under a sandbox made by a technology such as Flatpak or Snap. Some portal APIs, such as the file chooser dialog, are used transparently so that the application code doesn’t need to make any distinction between the sandboxed and unsandboxed cases, and if you ask me that’s a pretty impressive magic trick on its own. Other portal APIs such as the screencast one are used by both sandboxed and unsandboxed apps thanks to the secure architecture of Wayland compositors. But still other portal APIs are used conditionally depending on whether the app is running sandboxed; this is the case for the OpenURI portal used by Epiphany.

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today's howtos

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