gnu: gnome-xyz: Add gnome-shell-extension-jiggle.

* gnu/packages/gnome-xyz.scm (gnome-shell-extension-jiggle): New Variable.

Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>

gnu/packages/gnome-xyz.scm

@@ -782,6 +782,48 @@ Gnome overview with something that resembles the old vertically oriented
 style.")
     (license license:gpl3)))
 
+(define-public gnome-shell-extension-jiggle
+  (package
+    (name "gnome-shell-extension-jiggle")
+    (version "8")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/jeffchannell/jiggle/")
+             (commit version)))
+       (sha256
+        (base32
+         "1wbdx2bp22bdwj51ckgivwglkmckr7z8kfwvc8nv4y376hjz5jxz"))
+       (file-name (git-file-name name version))
+       (snippet
+        '(begin (delete-file "schemas/gschemas.compiled")))))
+    (build-system copy-build-system)
+    (arguments
+     `(#:install-plan
+       '(("." ,(string-append
+                "share/gnome-shell/extensions/"
+                "jiggle@jeffchannell.com")
+          #:include-regexp ("\\.js(on)?$" "\\.css$" "\\.ui$" "\\.png$"
+                            "\\.xml$" "\\.compiled$")))
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'fix-version
+           (lambda _
+             (substitute* "metadata.json"
+               (("\"40.0\"") "\"40\", \"41\""))))
+         (add-before 'install 'compile-schemas
+           (lambda _
+             (with-directory-excursion "schemas"
+               (invoke "glib-compile-schemas" ".")))))))
+    (native-inputs
+     (list `(,glib "bin")))  ; for glib-compile-resources
+    (home-page "https://github.com/jeffchannell/jiggle")
+    (synopsis "Mouse cursor enlargment for small and fast movements")
+    (description "Jiggle is a Gnome Shell extension that highlights the cursor
+position when the mouse is moved rapidly.")
+    (license license:gpl2)))
+
 (define-public arc-theme
   (package
     (name "arc-theme")