A plugin for Gedit 3.30 and later that adds some common keyboard shortcuts.
Copy custom_keys.plugin and custom_keys.py to ~/.local/share/gedit/plugins (Create the directory if it does not exist)
Open gedit and navigate to Preferences > Plugins and activate Custom Keyboard Shortcuts plugin
By default, the following additional keyboard shortcuts are active:
Ctrl+Y for Redo
Ctrl+E for Delete line(s)
Ctrl+G for Go to line
Ctrl+Tab for Next document tab
Ctrl+Shift+Tab for Previous document tab
Add or change keyboard shortcuts by uncommenting and editing lines in ~/.local/share/gedit/plugins/custom_keys.py
Known action names:
app.help
app.new-window
app.quit
move-to-new-window
win.auto-indent
win.bottom-panel
win.check-spell
win.clear-highlight
win.close
win.close-all
win.copy
win.cut
win.delete
win.display-right-margin
win.find
win.find-next
win.find-prev
win.focus-active-view
win.fullscreen
win.goto-line
win.hamburger-menu
win.highlight-current-line
win.highlight-mode
win.move-to-new-window
win.new-tab
win.new-tab-group
win.next-document
win.next-tab-group
win.open
win.overwrite-mode
win.paste
win.previous-document
win.previous-tab-group
win.print
win.redo
win.reopen-closed-tab
win.replace
win.revert
win.save
win.save-all
win.save-as
win.select-all
win.show-line-numbers
win.side-panel
win.tab-width
win.undo
win.use-spaces
win.wrap-mode
Some shortcuts, such as Ctrl+D for delete line are hard-coded in function gedit_view_class_init in gedit-view.c
Some shortcuts do not work when added with add_keyboard_shortcut(). For example, the following unfortunately has no effect:
self.add_keyboard_shortcut("win.previous-document", "<Ctrl><Shift>Tab")
self.add_keyboard_shortcut("win.next-document", "<Ctrl>Tab")
(There is a special class, GEdit3TabSwitch, which fixes the tab shortcuts instead)
Additional action names can be found by adding the line below in custom_keys.py and run gedit from the command line:
print(self.app.list_action_descriptions())
Additional action names can be found in https://github.com/GNOME/gedit/blob/master/gedit/resources/gtk/menus-common.ui.