This continues turning "example" in a real gnome-shell extension
tutorial, showing how to create GSettings using Convenience and
how to build a simple preference dialog by subclassing GtkGrid
and binding GObject properties to GSettings.
Retrieve Convenience from the extension helper object (Me), and
pass no arguments to initTranslations and getSettings (since the
metadata has all that is required)
Add "gettext-domain", "extension-id" (containing the base part of the
UUID) and "gschemabase" (which, combined with "extension-id", gives
the GSettings schema) to metadata.json, autogenerated by the build
system.
It is not used anymore, now that translations are bundled with
the extension. Also, in the zip files it ended up with my home
folder, which is not nice.
Common code for retrieving translations and GSettings schemas has
been factored out into lib/convenience.js, which is part of
every extension installation.
Since that code relies on renames done at zip file creation time,
extensions can no longer be installed with "make install". Instead,
one should create the zip file and install it with the tweak-tool.
There is also a bash script, local-install.sh, that will install
everything in zip-files.
Also, since the GSettingsSchemaSource code is not yet in a stable
GLib release, extensions using GSettings have seen their stable
shell version removed.
This is the stable release, so we support all of GNOME Shell
stable cycle without updates.
(As said earlier, dock and alternate-tab have issues, so they're
not marked 3.2 but just 3.2.0)
Extensions that use public Shell API are expected to work for all
stable 3.0 releases, so we skip setting the minor version. (This
means that they'll work in 3.0.0 and 3.0.1 without rebuilding).
Notably absent are auto-move-windows and windowsNavigator, that
hook deep into Shell code and could be broken by next minor release.
GNOME Shell emits a warning when "url" is absent in metadata.json,
adding it costs nothing. Links to the GIT repository because I
found no better page to reference.
Introduce a translation domain, gnome-shell-extensions, and use it
in extensions that have user-facing strings, instead of abusing
of translations provided by gnome-shell.
Also includes an example translation for italian, and bump the
required version for xrandr-indicator.
Depends on GNOME bug 621017.
